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The multifunctional tunneling machine utilizes the high-frequency hammer or crushing hammer of the working section to impact and break the rock, and the bucket teeth or drill rods are wedged into the surrounding rock to pry and break the rock

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Since its establishment in 2011, LANHI Intelligent Equipment has been committed to the research and development, production and sales of complete sets of intelligent equipment for underground engineering and mining, and has now become an advanced complete set of intelligent equipment integrator in China. It has successively passed the certifications of high-tech enterprises, specialized and new "little giant" enterprises, national intellectual property advantage enterprises, Sichuan Enterprise Technology Center, Chengdu Academician (Expert) Innovation Workstation and other certifications. The company adheres to the concept of quality-oriented, and has successively passed the ISO9001 quality management system certification, ISO14001 environmental management system certification, and ISO45001 Occupational health and safety management system certification.

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How does the wet spraying robot work? Detailed explanation of the operation process of the wet spraying robot construction site (6 steps)

  The wet spraying robot is a high-efficiency equipment for concrete spraying, which is widely used in construction fields such as tunnels and underground projects. It has a high degree of automation, and the construction efficiency and construction quality are significantly improved. The following will introduce the work process of the wet spraying robot in detail.


How does the wet spraying robot work? Detailed explanation of the operation process of the wet spraying robot construction site (6 steps)


  I. Construction site preparation


  Before starting the wet spraying operation, the construction site must be fully prepared first. Make sure the site is flat and clean, and remove any obstacles that may affect the operation of the equipment. At the same time, check whether the water supply and power supply facilities of the site are operating normally to provide guarantees for the subsequent construction.


  II. The wet spraying trolley enters the construction site


  After the construction site is properly prepared, the wet spraying trolley enters the construction site. The positioning and placement of the trolley need to be carried out in accordance with the requirements of the construction drawings to ensure that it can cover all areas that need to be sprayed. After the trolley is in place, conduct a preliminary inspection of the equipment and prepare for operation after confirmation.


  3. Start the equipment


  1. Start the hydraulic system: First start the hydraulic system of the wet spraying trolley to ensure its normal operation and provide power support for the next operation.


  2. Start the air compressor: Then start the air compressor to ensure that the air pressure meets the spraying requirements.


  3. Start the hopper mixing: Start the mixing device in the hopper to maintain the uniformity of the concrete material and prevent the material from separating during the spraying process.


  IV. Feeding and spraying surface treatment


  1. Hopper feeding: After the mixing device is started and operates normally, the hopper feeding operation is performed. The feeding process should be uniform and continuous to avoid blockage or overload.


  2. Spraying surface cleaning: Clean the surface to be sprayed, remove dust, oil and other impurities on the surface, and ensure that the concrete can be firmly attached to the base surface.


  V. Start wet spraying operation


  After all preparations are completed, start the formal wet spraying operation. According to the design requirements and construction specifications, adjust the spraying parameters (such as spraying pressure, spraying speed, etc.) to ensure the quality and efficiency of spraying. During the operation, closely monitor the equipment operation status and spraying effect, and adjust the spraying parameters and equipment settings in time.


  Six, treatment after wet spraying operation


  After the wet spraying operation is completed, shut down the machine and clean the equipment and pipelines. During the cleaning process, the residual materials in the pipeline should be thoroughly removed to prevent them from affecting the operation of the equipment during the next use. Finally, perform equipment maintenance, check the wear of each component, and replace damaged parts in time to ensure the long-term normal use of the equipment.


  The construction process of the wet spraying manipulator includes site preparation, equipment entry, equipment startup, material addition and spraying surface treatment, wet spraying operation, cleaning and maintenance after the operation. Each link needs to be carried out strictly in accordance with the operating specifications to ensure construction quality and construction safety. Through detailed process management and operating specifications, the high efficiency and automation advantages of the wet spraying manipulator can be fully utilized to improve construction efficiency and construction quality.


Will tunnel crossing faults cause other geological problems?

  Will tunnel crossing faults cause other geological problems? Tunnels crossing faults may indeed cause a series of other geological problems, mainly including:


  1. Leakage problem: Fault zones are usually accompanied by the development of rock cracks, which may cause leakage inside the tunnel, and in severe cases may even form water flows, posing a threat to the tunnel structure and operational safety.


Will tunnel crossing faults cause other geological problems?


  2. Ground subsidence: Tunnel excavation near faults may cause surface subsidence, especially in areas where fault activity is frequent. Ground subsidence may cause damage to surface buildings and facilities, and also affect the stability of the tunnel.


  3. Impact of seismic activity: Tunnels crossing faults may change the original stress state, and may induce or intensify seismic activity, which is a potential risk for the long-term safe operation of tunnels.


  4. Failure of support structure: Due to the broken and unstable characteristics of rocks in the fault area, the existing support structure may not be able to effectively resist geological pressure, resulting in failure of the support structure, thereby affecting the stability of the tunnel.


  5. Tunnel deformation: Under the influence of faults, the tunnel may bend, twist and other deformation phenomena, which will not only affect the use function of the tunnel, but also may cause driving safety problems.


  6. Environmental impact: Tunnel construction and operation may have an impact on the surrounding environment, such as noise, vibration, dust and other pollution, as well as potential impacts on groundwater resources and ecosystems.


  In order to reduce these risks, a series of measures need to be taken during tunnel design and construction, including detailed geological surveys, reasonable support design, strict construction monitoring, and later maintenance and monitoring. Through these measures, the possible harm caused by faults to tunnel projects can be effectively prevented and mitigated.


What is the power of LANHI's arch installation trolley?

  What is the power of LANHI's arch installation trolley? LANHI's arch installation trolley has two models, one is conventional, suitable for low-altitude areas, and the other is plateau type, suitable for high-altitude areas; the power of the engine of the two models will be different.


What is the power of LANHI's arch installation trolley?


  Conventional type


  Engine highway: 138.5KW


  Electrical installed power: 87.5KW


  Plateau type


  Engine highway: 168KW


  Electrical installed power: 87.5KW


  LANHI's arch installation trolley is not only suitable for arch installation operations in highways and high-speed railway tunnels, but also covers under-excavation processing, charging operations, tunnel inspections, and static high-altitude operations on site, which greatly improves construction efficiency and safety. LANHI's arch installation trolleys have different powers and prices. You can choose according to the specific conditions of the construction project.


Advantages of wet concrete spraying trolleys over traditional dry spraying machines

  In construction, concrete spraying technology is an important link. Compared with traditional dry spraying machine operations, wet concrete spraying trolley operations bring significant advantages, not only outstanding in health and safety, but also showing strong competitiveness in construction efficiency and cost control.


Advantages of wet concrete spraying trolleys over traditional dry spraying machines


  First, wet concrete spraying trolley operations have obvious advantages in health and safety. Traditional dry spraying machine operations will generate a lot of dust, which not only pollutes the environment, but also causes serious harm to the health of workers. Wet spraying trolley operations effectively reduce the dust concentration beside the machine and outside the nozzle by reducing the dust generation during the spraying process, thereby greatly reducing the risk of workers inhaling harmful dust. This improvement has greatly improved the working environment on the construction site and helped protect the health of workers.


  Secondly, wet spraying trolley operations have significantly improved construction efficiency. In traditional dry spraying machine operations, the concrete rebound rate is high and the material waste is serious. With the use of wet spraying trolleys, the concrete rebound rate can be reduced to about 15%, which means that more concrete can be effectively attached to the construction surface and reduce material waste. At the same time, because the water-cement ratio is easy to control, the wet spraying process can better guarantee the quality of concrete, making the performance of shotcrete more stable and superior.


  In addition, the wet spraying trolley operation also reduces the labor intensity of workers. Because the spraying process is more efficient and stable, workers do not need to frequently adjust and maintain equipment, and the construction process is smoother and more continuous. This not only improves work efficiency, but also reduces the fatigue of workers caused by operating complex mechanical equipment.


  Finally, the wet spraying trolley operation also performs well in cost control. Although the initial investment of the wet spraying trolley may be high, the overall construction cost is effectively controlled due to reduced material waste, improved construction efficiency and reduced equipment maintenance costs. This makes the wet spraying trolley operation an economical and efficient choice, which is favored by more and more construction companies.


  Concrete wet spraying trolley operation has significant advantages in improving the construction environment, improving construction efficiency, reducing the labor intensity of workers and saving construction costs. It not only provides workers with a healthier working environment, but also brings higher economic benefits to enterprises. It is an important technological advancement in modern construction.


Application and advantages of arch-anchor integrated machine in modern bridge construction

  The arch-anchor integrated machine is an advanced equipment that integrates arch structure and anchor system, which plays a vital role in modern bridge construction. This equipment not only improves construction efficiency, but also ensures the safety and stability of the bridge. The following will introduce the application of arch-anchor integrated machine in bridge construction and its advantages in detail.


Application and advantages of arch-anchor integrated machine in modern bridge construction

  The application of arch-anchor integrated machine in bridge construction is very extensive. It is mainly used to make and install the arch structure of the bridge, as well as to provide necessary anchoring support. Due to its structural characteristics, the arch-anchor integrated machine can work under various complex geological conditions, providing strong technical support for bridge construction. For example, in areas with complex terrain such as mountainous areas and canyons, the arch-anchor integrated machine can overcome terrain restrictions and achieve efficient and safe construction. In addition, the arch-anchor integrated machine can also be used in the construction of transportation infrastructure such as highways and railways, providing reliable guarantees for transportation.


  The arch-anchor integrated machine has significant advantages in bridge construction. First, it improves construction efficiency. The traditional bridge construction method requires a lot of manpower and time, while the arch-anchor integrated machine greatly shortens the construction period through automated operation. Secondly, it improves the construction quality. The arch-anchor machine uses high-precision measurement and control technology to ensure the precise production and installation of the arch structure, thereby improving the overall quality of the bridge. Finally, it reduces construction costs. Although the initial investment of the arch-anchor machine is high, due to its high efficiency and high-quality construction performance, it can reduce the cost of the entire project in the long run.


  The application prospects of the arch-anchor machine in bridge construction are very broad. With the continuous development of science and technology, the functions and performance of the arch-anchor machine will be further improved. For example, more intelligent arch-anchor machines may appear in the future, which can achieve more autonomous construction and further improve construction efficiency and quality. At the same time, with the increasing awareness of environmental protection, the arch-anchor machine will also develop in a more environmentally friendly and energy-saving direction. For example, the research and development of arch-anchor machines driven by clean energy can reduce pollution to the environment.


  As an advanced bridge construction equipment, the arch-anchor machine plays an irreplaceable role in modern bridge construction. Its wide application and significant advantages indicate that it will continue to play an important role in future bridge construction. With the continuous innovation and progress of technology, we have reason to believe that the arch-anchor machine will show stronger vitality and potential in future bridge construction.

The application of wet spraying concrete technology and wet spraying manipulators has gradually become an important technical means in tunnel construction

  With the continuous improvement of construction efficiency and quality requirements of tunnel projects, wet spraying manipulators are increasingly widely used in tunnel construction, reflecting their unique advantages.

The application of wet spraying concrete technology and wet spraying manipulators has gradually become an important technical means in tunnel construction

  The application of wet spraying concrete technology and wet spraying manipulators has gradually become an important technical means in tunnel construction (Figure 1)


  Wet spraying concrete technology has many significant advantages in the initial support construction of tunnels:


  High safety factor: wet spraying concrete technology reduces the need for high-altitude operations and reduces the risk of workers being injured.


  Low dust volume: Traditional dry spraying concrete will produce a lot of dust, while wet spraying technology greatly reduces the generation of dust, which helps to protect the health of workers.


  High concrete strength: The material ratio of wet spraying concrete is more scientific, and the strength of concrete after construction is higher, ensuring the structural safety of the tunnel.


  Low rebound rate: The rebound rate of wet spraying concrete is low, which reduces material waste and improves construction efficiency.


  Stable quality: The material of wet spraying concrete is uniform during the construction process, avoiding the problem of unstable quality caused by material separation of dry spraying concrete.


  Compared with traditional manual construction, the concrete wet spraying manipulator has the following significant advantages:


  Flexible movement: The wet spraying manipulator can operate flexibly in a narrow tunnel space, covering a wide construction range with almost no dead corners.


  High construction efficiency: The use of the manipulator greatly improves the construction efficiency, shortens the construction period, and reduces the project cost.


  Improve the working environment: The manipulator operation reduces the chance of direct contact with harmful substances by humans, improves the working environment of workers, and protects their health.


  Improve construction quality: The manipulator sprays concrete more evenly and meticulously, avoids quality problems caused by manual operation, and improves the consistency of construction quality.


  In the initial support concrete construction of the tunnel, the use of wet spraying machines greatly improves the construction environment and ensures the safety and health of the operators. This construction method not only requires fewer operators and reduces the loss of materials, but also conforms to the concept of environmentally friendly construction, and gradually becomes an important technical means in tunnel construction.


  The application of wet spraying concrete technology and wet spraying manipulators not only improves the environment of the initial support construction of the tunnel, ensures the health and safety of the construction workers, but also improves the construction efficiency and quality, which conforms to the green, environmentally friendly and economical concepts of modern tunnel construction.

Wet spraying technology in tunnel engineering: the key to improving construction efficiency and safety

  In tunnel engineering construction, excavation technology is one of the core technologies of tunnel construction, and concrete spraying in the initial support of tunnels is one of the key processes of tunnel construction. With the further acceleration of the pace of infrastructure construction in my country, the application of wet spraying technology in large-scale engineering construction has become more and more extensive.


Wet spraying technology in tunnel engineering: the key to improving construction efficiency and safety


  Advantages of wet spraying technology


  The wet spraying process replaces the traditional dry spraying process, bringing many significant advantages. First, the wet spraying process reduces the generation of dust during construction by pre-mixing water and concrete before spraying, greatly improving the working environment of tunnel construction workers. This not only helps to protect the health of construction workers, but also reduces pollution to the surrounding environment.


  Secondly, the application of wet spraying technology significantly reduces labor intensity. The traditional dry spraying process requires workers to operate manually, which is labor-intensive, while the wet spraying process relies on automated equipment, such as concrete wet spraying trolleys. This equipment not only reduces the workload directly involved by workers, but also improves the accuracy and efficiency of construction.


  Improving construction efficiency and saving costs


  The introduction and popularization of wet spraying technology has greatly improved the efficiency of tunnel construction. Due to the better adhesion and fluidity of wet spraying concrete, it can be more evenly and firmly attached to the tunnel wall during the spraying process, thereby improving the quality and stability of the support. In addition, the wet spraying process simplifies the construction process and speeds up the construction progress, thereby shortening the project period.


  In terms of cost, the wet spraying process also shows significant advantages. The traditional dry spraying process not only requires a lot of manual operation, but also often leads to material waste and equipment loss due to dust problems. The mechanization and automation of the wet spraying process not only reduces material waste and equipment wear, but also reduces labor costs, saving construction costs overall.


  Promote the mechanization process of tunnel construction


  The emergence of concrete wet spraying trolleys is an important symbol of tunnel construction mechanization. With the development of science and technology, the design and function of wet spraying trolleys have been continuously optimized, making tunnel construction more efficient and safe. These devices are equipped with advanced spraying systems and control systems, which can achieve high-precision operations and further improve construction quality and efficiency.


  The application of wet spraying technology has played an important role in tunnel engineering construction. It not only improves the construction environment, reduces labor intensity, and improves work efficiency, but also saves construction costs and promotes the mechanization process of tunnel construction. With the continuous advancement of my country's infrastructure construction, wet spraying technology will continue to play a key role in future tunnel projects and contribute more to my country's infrastructure construction.

Application and advantages of wet concrete spraying trolleys in tunnel engineering

  Wet concrete spraying trolleys are increasingly used in modern construction, especially in spraying concrete support operations in railway tunnels, highway tunnels, water conservancy culverts, mine tunnels, dam slopes, building foundation pits and military engineering. In the initial support operations of long and large tunnels, the advantages of wet concrete spraying trolleys are particularly prominent, which has strongly promoted the application of mechanized construction in tunnels.


Application and advantages of wet concrete spraying trolleys in tunnel engineering


  Application fields of wet concrete spraying trolleys


  1. Railway tunnels: In railway tunnel construction, wet spraying trolleys can quickly complete initial support and improve the safety and efficiency of tunnel construction.


  2. Highway tunnels: Highway tunnel projects have high requirements for construction speed and quality. The application of wet spraying trolleys meets these requirements and ensures the progress of the project.


  3. Water conservancy culverts: In water conservancy projects, wet spraying trolleys can efficiently spray concrete to ensure the stability and durability of culverts.


  4. Mine tunnels: The mine operating environment is complex, and the flexibility and rapidity of wet spraying trolleys make them perform well in mine tunnel support.


  5. Dam slope: The wet spraying trolley can effectively prevent the slope from sliding and enhance the overall stability of the slope in the application of the dam slope.


  6. Building foundation pit: In the support operation of the building foundation pit, the wet spraying trolley can quickly build the initial support structure to ensure the safety of the foundation pit.


  7. Military engineering: In military engineering, the wet spraying trolley can quickly build a protective structure to improve the protection capability of the project.


  Advantages of concrete wet spraying trolley


  Compared with traditional small wet spraying machines, concrete wet spraying trolleys have significant advantages:


  1. Operation flexibility: The wet spraying trolley can operate flexibly in a complex construction environment and adapt to various terrains and construction requirements.


  2. Rapidity: The wet spraying trolley has high spraying efficiency and can complete large-area spraying operations in a short time.


  3. Convenience: The wet spraying trolley integrates multiple functions, is easy to operate, and reduces the complexity of manual operation.


  4. Economic efficiency: Due to its high spraying efficiency and good quality, the wet spraying trolley can reduce construction costs and improve economic benefits.


  5. Safety: The wet spraying trolley has a high degree of automation, which reduces the labor intensity and construction risks of operators.


  Improvement of quality and efficiency


  The wet spraying trolley has obvious advantages in improving the quality of tunnel shotcrete. By accurately controlling the spraying amount and spraying angle of concrete, the wet spraying trolley can ensure the uniformity and density of the spraying layer, thereby improving the structural strength and durability of the tunnel. At the same time, the efficient operation capacity of the wet spraying trolley greatly improves the construction efficiency and speeds up the progress of the entire project.


  The wide application of the wet spraying trolley of concrete not only overcomes the problems of traditional concrete spraying machines, but also significantly improves the construction efficiency and quality, reduces labor intensity and construction costs, and promotes the development of mechanized construction in tunnels and other fields.

Classification of wet concrete spraying machines and their applications in construction projects

  The main function of wet concrete spraying machines is to spray concrete onto the target surface through high pressure to form a protective layer or support structure. It is the core equipment in shotcrete construction and has been widely used in various shotcrete support projects. Let's take a look at the classification and application scenarios of wet concrete spraying machines.


Classification of wet concrete spraying machines and their applications in construction projects


  1. Classification of wet concrete spraying machines


  Common wet concrete spraying machines are usually divided into the following categories according to their working principles and application scenarios:


  Hydraulic wet concrete spraying machine: This equipment is driven by a hydraulic system and generates high pressure through a hydraulic pump to spray the concrete mixture onto the construction surface. The hydraulic wet spraying machine has the characteristics of stable pressure and uniform spraying, and is suitable for large-area and long-distance spraying construction.


  Rotor wet concrete spraying machine: This type of equipment adopts a rotor structure, and the concrete mixture is driven to be sprayed through the rotation of the rotor. The rotor wet spraying machine has a simple structure and is easy to maintain. It is often used in small and medium-sized projects and construction projects with special spraying requirements.


  Vehicle-mounted wet concrete spraying machine: The vehicle-mounted equipment installs the wet concrete spraying machine on a vehicle, which has high mobility and is suitable for projects that require frequent movement of construction sites, such as municipal roads and bridge maintenance.


  Concrete wet spraying manipulator: This is a highly intelligent device, usually equipped with a mechanical arm, which can accurately control the spraying direction and angle, and is suitable for projects with complex structures and fine construction, such as large tunnels and mining projects.


  2. Application scenarios of wet concrete spraying machine


  Concrete wet spraying machine plays an important role in multiple engineering fields:


  Construction engineering: It is used for wall reinforcement, foundation construction and spraying of protective layers of buildings to improve the durability and stability of buildings.


  Municipal engineering: In the construction and maintenance of municipal infrastructure such as roads, bridges, and underground pipelines, it is used to spray concrete to improve structural strength and corrosion resistance.


  Railway and highway tunnels: In tunnel construction, wet spraying machines are used to spray concrete support layers to prevent landslides and ensure construction safety.


  Foundation pit support: During the excavation of the foundation pit, wet spraying machines are used to spray concrete to form support walls to prevent foundation pit collapse.


  Mining Engineering: In mining, wet spraying machines are used to spray concrete walls, protect mine structures, and ensure operational safety.


  Slope management: In slope reinforcement projects, sprayed concrete forms a protective layer to prevent landslides and soil erosion.


  As an important equipment in modern construction technology, wet concrete spraying machines have become an indispensable tool for various types of sprayed concrete projects due to their high efficiency, flexibility, and strong adaptability. With the continuous advancement of technology, wet concrete spraying machines will further improve construction efficiency and project quality, and provide more reliable technical support for building and infrastructure construction.

What are the pipe jacking equipment? Introduction to common pipe jacking equipment

  Pipe jacking equipment is a mechanical equipment used for trenchless construction. It can lay pipelines, cables, etc. through obstacles without damaging the ground. So, what are the pipe jacking equipment? The following are some common pipe jacking equipment:


What are the pipe jacking equipment? Introduction to common pipe jacking equipment


  1. Pipe jacking machine: This is the core equipment in pipe jacking construction. It crushes soil or rock through a rotating cutting head and discharges the crushed materials while pushing the pipeline forward.


  2. Main jacking cylinder: Provides the thrust required for jacking and pushes the pipe jacking machine and pipeline forward.


  3. Relay room: When the jacking distance is long, a relay room is needed to increase the force and distance of jacking.


  4. Mud system: Used to transport and discharge mud to maintain the stability of the excavation face and reduce friction.


  5. Guiding system: Helps control the direction and position of the pipe jacking machine to ensure that the pipeline is laid according to the design requirements.


  6. Back wall: Provides reaction force to support the jacking of the pipe jacking machine and pipeline.


  7. Lifting equipment: used for lifting and transporting pipe jacking equipment and pipelines.


  When selecting pipe jacking equipment, it is necessary to consider factors such as geological conditions, pipeline diameter, and jacking distance, and make reasonable selection and configuration according to actual conditions. At the same time, it is also necessary to pay attention to the quality and performance of the equipment to ensure the safety and efficiency of construction.

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