The expressway from Lin'an to Jinhua in Zhejiang Province, known as the Lin'an-Jinhua Expressway, starts at Qianqiuguan at the border of Zhejiang and Anhui. This major road connects the two provinces, passing through Lin'an, Tonglu, and Jiande, and finally reaching Jiande in Hangzhou. The total length of this segment is 85.5 kilometers, with a designed speed of 100 kilometers per hour. Once completed, it will significantly shorten the distance from central and western Zhejiang to Hangzhou and will become a new route for the northern part of Lanxi.

　　Due to the mountainous terrain, the Lin'an-Jinhua Expressway includes 70 bridges and 30 tunnels. Among these, the Yinggong Tunnel is the longest mountain expressway tunnel in Hangzhou, with the right section measuring 4412 meters and the left section 4452 meters. It is also the longest tunnel on the Lin'an-Jinhua Expressway. Given the tunnel's length and its passage through mountainous terrain, ventilation, drainage, and dust reduction during construction pose significant challenges.

　　To ensure the smooth progress of the project, the Hangzhou transportation authorities made advanced plans, overseeing and guiding the project team to develop a scientific construction plan. Meanwhile, the workers on the Yinggong Tunnel actively responded to the call of the Lin'an-Jinhua Expressway by introducing advanced machinery such as double-arm rock drilling rigs, waterproof board laying trolleys, and invert bridges. They created a mechanized construction line from excavation to support completion, thus improving construction efficiency.

　　LANHI's LCG312A multifunctional arch trolley is a device that integrates functions such as steel arch installation, mesh welding, rebar connection, and excavation face measurement. This equipment uses a truck chassis, which allows for flexible movement and transfer, efficiently addressing various situations. Its three-arm system features a middle arm with remote control and side arms with local control, allowing simultaneous operation. This not only reduces labor costs and construction risks but also achieves standardization and industrialization of tunnel arch installation.

　　On January 17, 2022, a significant part of the Lin'an-Jinhua Expressway—the Yinggong Tunnel—was successfully completed, marking the breakthrough of the main line of the Lin'an-Jinhua Expressway.

　　The expressway from Lin'an to Jinhua in Zhejiang, abbreviated as Linjin Expressway, starts at the border of Zhejiang and Anhui, called Qianqiuguan, which is a major road connecting these two provinces. This road passes through Lin'an, Tonglu, Jiande, and finally reaches the Jiande section of Hangzhou Xinjing. This section of the road is 85.5 kilometers long, with a designed speed of 100 kilometers per hour. Once completed, it will greatly shorten the distance from central and western Zhejiang to Hangzhou, and also serve as a new passage for the northern Lixi region.

　　Because it is a highway built in mountainous areas, there are a total of 70 bridges and 30 tunnels on Linjin Expressway. Among them, Yinggong Tunnel is the longest mountain highway tunnel in Hangzhou. The tunnel on the right is 4412 meters long, and the one on the left is 4452 meters long, making it the longest tunnel on Linjin Expressway. Due to the long length of the tunnel passing through the mountain, ventilation, drainage, dust reduction, and other works are very difficult during construction.

　　In order to ensure the smooth progress of this project, Hangzhou Transportation made advance plans and supervised and guided the project team to develop scientific construction plans. At the same time, people working on Yinggong Tunnel actively responded to the call of Linjin Expressway and introduced some advanced mechanical equipment, such as double-arm rock drilling platform carts, waterproof board laying platform carts, and arch bridges. They have created a mechanized construction assembly line from excavation to support, improving construction efficiency.

　　The LanHi LCG312A multi-functional platform is a device that integrates functions such as steel arch installation, welding mesh and connecting bars, and excavation surface measurement. This equipment uses a car chassis, so it can move and relocate flexibly to deal with various situations, with high efficiency. Its three arms adopt remote control for the middle arm and local remote control for the side arms, enabling simultaneous operation. This not only reduces labor costs and construction risks but also achieves the standardization and industrialization of tunnel arch erection.

　　On January 17, 2022, an important part of Linjin Expressway—Yinggong Tunnel was successfully penetrated, marking the completion of the main line of Linjin Expressway.

　　The Sichuan Along-the-River Expressway starts from Xinshi Town in Yibin City and extends to the Jinjiang Interchange of G5 Beijing-Kunming Expressway on the east side of Panzhihua City. This route passes through four world-class hydroelectric stations and crosses several strong seismic fault zones. There are 219 bridges on the route, including 37 extra-large bridges, and 93 tunnels, including 35 particularly long tunnels.

　　The Qingping Tunnel No.1 is located in Qingping Yi Autonomous Township, Pingshan County, Yibin City, with a total length of 2616 meters, and is a two-way four-lane separated tunnel. The terrain and geological conditions of this tunnel are extremely complex. The rocks inside the tunnel are mainly carbonaceous mudstone and medium sandstone, with some coal seams interspersed. These rocks have poor cohesion, are thinly layered, and pose a high risk of gas control, making construction very difficult.

　　The Qingping Tunnel No.2 is also located in Qingping Yi Autonomous Township, Pingshan County, Yibin City, with a total length of 1634 meters, and is also a two-way four-lane separated tunnel. The terrain and geological conditions of this tunnel are similarly complex. The terrain at the entrance of the tunnel is extremely steep, with a slope of up to 80 degrees and a height difference of nearly 100 meters. The construction process requires traversing more than ten winding gravel roads from the provincial road to the construction site, with local slopes reaching 16% and a vertical rise of nearly 200 meters. The entrance road is very steep. The gravel soil at the entrance of the tunnel is loose, and the space of the construction platform at the entrance of the tunnel is extremely limited, making the site conditions very harsh. Inside the tunnel, there are mainly strongly weathered sandstone, karst filling material, and gravel soil, with many large karst caves and a daily water inflow of up to 13,000 cubic meters, posing high construction difficulty and safety risks.

　　The LanHi LDG312A intelligent arch frame integrated trolley adopts a lightweight design solution, with light weight and small size. The trolley integrates multiple processes such as measurement point setting, under-excavation operation, arch frame installation, welding mesh, and connection bars, and can complete the excavation and arch frame installation of a double-line tunnel at one go without moving the machine. The whole vehicle adopts an engineering chassis, diesel-electric dual-power system, bidirectional driving platform structure, good driving performance, and can adapt to various complex tunnel road conditions. The boom adopts wireless remote control operation, which is easy to accurately control the action of the mechanical arm and has the characteristics of fast, efficient, energy-saving, and safe.

　　On December 7, 2022, the right tunnel of the Qingping Tunnel No.2 was successfully penetrated. On May 25, 2023, at 9 a.m., the right tunnel of the Qingping Tunnel No.1 was safely and smoothly penetrated from the gas tunnel of the XJ4 section of the Along-the-River Expressway.

　　The Linjin Expressway, also known as the Lin'an to Jinhua Expressway, connects Lin'an, Tonglu, Jiande, Lanxi, Jinhua, and other areas, serving as a new passage for the development of the northern region of Lanxi. It adopts the standard of a two-way four-lane expressway, with a design speed of 100 kilometers per hour and a standard roadbed width of 26 meters, spanning approximately 150 kilometers in total. However, the construction of this highway is no easy task, as it traverses multiple mountainous and hilly areas with complex and varied terrain. Tunnels must pass through mountains, and bridges must span gorges, presenting significant challenges to the construction work.

　　To overcome these difficulties, the construction units have utilized modern technology, such as LanHi's LCG312A intelligent integrated arch frame trolley. This equipment integrates functions such as steel arch installation, welding mesh and connecting bars, excavation surface measurement, and more into one unit. Moreover, it is equipped with a car chassis, providing it with the capability for flexible movement, relocation, and emergency response. Additionally, the equipment is equipped with a three-arm frame, with the middle arm operated remotely and the side arm equipped with a local remote dual operating system. The use of these advanced devices not only reduces labor costs and construction risks but also improves work efficiency, achieving the standardization and industrialization of tunnel arch erection.

　　In the future, the Linjin Expressway will become an important transportation artery for Zhejiang Province and even the Yangtze River Delta region, playing a crucial role in regional integration and development. The completion of the Linjin Expressway will greatly shorten the distance from central and western Zhejiang to Hangzhou, providing strong support for local economic development and transportation convenience. Despite facing many challenges during the construction process, with the aid of modern technology and advanced equipment, people have overcome difficulties, gradually turning this expressway into a reality and bringing new opportunities and vitality to the surrounding areas' development.

　　The Wuxi-Yunyang-Kaizhou Expressway, abbreviated as Wuxi-Yun-Kai Expressway, is an important expressway connecting Wuxi, Yunyang, and Kaizhou, with a total length of 118.6 kilometers. This expressway has a total of 86 bridges and 21 tunnels, with a bridge-tunnel ratio as high as 60%. Designed with a speed limit of 80 kilometers per hour, it is a four-lane expressway in both directions.

　　Among them, the Chaoyang Tunnel is a key node project of the Wuxi-Yun-Kai Expressway, with a total length of 5132 meters for the left line and 5110 meters for the right line, making it an exceptionally long tunnel. The geological environment of this tunnel is extremely complex, facing various disaster conditions such as landslides, collapses, sudden mud and water inflows, coal and gas outbursts, and rock bursts, making construction extremely challenging.

　　LanHi's LGP340A intelligent integrated arch frame trolley integrates multiple processes such as measurement, excavation, arch frame installation, welding of mesh and connecting bars, etc. It can complete the excavation and arch frame installation of the double-line tunnel without moving the machine; the whole vehicle adopts an engineering chassis, with dual power systems of diesel and electricity, a bidirectional cab structure, good driving performance, and adaptability to various complex tunnel road conditions; the boom adopts wireless remote control + manual control operation, making it easy to control the movement of the mechanical arm, with features of rapid operation, high efficiency, and energy saving.

　　According to the plan, the Chaoyang Tunnel is scheduled to complete the construction of 6000 meters by 2023, and is expected to be fully connected in the second quarter of 2024. As of March 28, 2024, it was reported that the overall construction progress of the Wuxi-Yun-Kai Expressway has reached 87%.

　　The Chengnan Expressway is a 215-kilometer highway connecting Chengdu and Nanchong. It starts from the Nanchong Dongguan interchange, passing through Hanjiawan, Gaoping, Jialing, Pengxi, Tangjia, Daying, Cangshan, Huaikou, Qingquan, and finally connecting to the Chengdu Ring Expressway at the Luosiban interchange. The entire road is constructed according to highway standards, including two 1482-meter twin-tube tunnels and three extra-large bridges totaling 4344 meters in length.

　　The Songjiagou Tunnel is located in Qinglian Village, Dangliang Street Office, Bazhou District, with a total length of 815 meters. It passes through various formations such as mudstone and sandstone, presenting complex geological conditions. The tunnel mainly passes through alternating layers of mudstone and sandstone in the Lower Cretaceous Bai Long Formation, with nearly horizontal bedding and relatively tight structure.

　　LanHi's LG312M intelligent arch integrated trolley integrates multiple processes such as measurement point setting, under-excavation operation, arch installation, welding mesh, and connecting bars. It can complete the excavation and arch installation of a double-track tunnel without moving. The entire vehicle adopts an engineering chassis, with a dual-power system of diesel and electricity, a bidirectional cab structure, good driving performance, and adaptation to various complex tunnel road conditions. The arm uses wireless remote control and manual control operation, making it easy to control the movement of the mechanical arm, with features such as speed, efficiency, and energy saving.

　　The Chengnan Expressway expansion project started in September 2022 and is expected to be completed and opened to traffic by 2025.

　　The expressway from Lin'an to Jinhua in Zhejiang, abbreviated as Linjin Expressway, starts at the border of Zhejiang and Anhui, called Qianqiuguan, which is a major road connecting these two provinces. This road passes through Lin'an, Tonglu, Jiande, and finally reaches the Jiande section of Hangzhou Xinjing. This section of the road is 85.5 kilometers long, with a designed speed of 100 kilometers per hour. Once completed, it will greatly shorten the distance from central and western Zhejiang to Hangzhou, and also serve as a new passage for the northern Lixi region.

　　Because it is a highway built in mountainous areas, there are a total of 70 bridges and 30 tunnels on Linjin Expressway. Among them, Yinggong Tunnel is the longest mountain highway tunnel in Hangzhou. The tunnel on the right is 4412 meters long, and the one on the left is 4452 meters long, making it the longest tunnel on Linjin Expressway. Due to the long length of the tunnel passing through the mountain, ventilation, drainage, dust reduction, and other works are very difficult during construction.

　　In order to ensure the smooth progress of this project, Hangzhou Transportation made advance plans and supervised and guided the project team to develop scientific construction plans. At the same time, people working on Yinggong Tunnel actively responded to the call of Linjin Expressway and introduced some advanced mechanical equipment, such as double-arm rock drilling platform carts, waterproof board laying platform carts, and arch bridges. They have created a mechanized construction assembly line from excavation to support, improving construction efficiency.

　　The LanHi LCG312A multi-functional platform is a device that integrates functions such as steel arch installation, welding mesh and connecting bars, and excavation surface measurement. This equipment uses a car chassis, so it can move and relocate flexibly to deal with various situations, with high efficiency. Its three arms adopt remote control for the middle arm and local remote control for the side arms, enabling simultaneous operation. This not only reduces labor costs and construction risks but also achieves the standardization and industrialization of tunnel arch erection.

　　On January 17, 2022, an important part of Linjin Expressway—Yinggong Tunnel was successfully penetrated, marking the completion of the main line of Linjin Expressway.

　　The Sichuan Along-the-River Expressway starts from Xinshi Town in Yibin City and extends to the Jinjiang Interchange of G5 Beijing-Kunming Expressway on the east side of Panzhihua City. This route passes through four world-class hydroelectric stations and crosses several strong seismic fault zones. There are 219 bridges on the route, including 37 extra-large bridges, and 93 tunnels, including 35 particularly long tunnels.

　　The Qingping Tunnel No.1 is located in Qingping Yi Autonomous Township, Pingshan County, Yibin City, with a total length of 2616 meters, and is a two-way four-lane separated tunnel. The terrain and geological conditions of this tunnel are extremely complex. The rocks inside the tunnel are mainly carbonaceous mudstone and medium sandstone, with some coal seams interspersed. These rocks have poor cohesion, are thinly layered, and pose a high risk of gas control, making construction very difficult.

　　The Qingping Tunnel No.2 is also located in Qingping Yi Autonomous Township, Pingshan County, Yibin City, with a total length of 1634 meters, and is also a two-way four-lane separated tunnel. The terrain and geological conditions of this tunnel are similarly complex. The terrain at the entrance of the tunnel is extremely steep, with a slope of up to 80 degrees and a height difference of nearly 100 meters. The construction process requires traversing more than ten winding gravel roads from the provincial road to the construction site, with local slopes reaching 16% and a vertical rise of nearly 200 meters. The entrance road is very steep. The gravel soil at the entrance of the tunnel is loose, and the space of the construction platform at the entrance of the tunnel is extremely limited, making the site conditions very harsh. Inside the tunnel, there are mainly strongly weathered sandstone, karst filling material, and gravel soil, with many large karst caves and a daily water inflow of up to 13,000 cubic meters, posing high construction difficulty and safety risks.

　　The LanHi LDG312A intelligent arch frame integrated trolley adopts a lightweight design solution, with light weight and small size. The trolley integrates multiple processes such as measurement point setting, under-excavation operation, arch frame installation, welding mesh, and connection bars, and can complete the excavation and arch frame installation of a double-line tunnel at one go without moving the machine. The whole vehicle adopts an engineering chassis, diesel-electric dual-power system, bidirectional driving platform structure, good driving performance, and can adapt to various complex tunnel road conditions. The boom adopts wireless remote control operation, which is easy to accurately control the action of the mechanical arm and has the characteristics of fast, efficient, energy-saving, and safe.