San San Industry (II) in Hangzhou
Release time:
2019-08-25
On August 24, Hangzhou, Hangzhou Sanyang Construction Co., Ltd., Hubei Jintuntong Tunnel Equipment Manufacturing Co., Ltd., and Liaoning Sansan Industry Co., Ltd. signed a strategic cooperation agreement. The three companies decided to carry out strategic cooperation in the field of underground space construction and high-end equipment manufacturing. Cooperation, work together to enter the domestic and foreign subway, municipal, highway, railway and other infrastructure construction fields. At the same time, the contract for manufacturing and technical support of the 14.16-meter diameter super-large slurry shield machine was signed.
Sanyang Construction, Hubei Golden Tunnel, Three Three Three Industries signed a strategic cooperation agreement and.
Launch Ceremony of 14.16 m Super Large Diameter Slurry Shield Machine Project
August24On the 1st, Hangzhou, Hangzhou Sanyang Construction Co., Ltd., Hubei Jintuntong Tunnel Equipment Manufacturing Co., Ltd., and Liaoning Sansan Industry Co., Ltd. signed a strategic cooperation agreement. The three companies decided to carry out strategic cooperation in the field of underground space construction and high-end equipment manufacturing, and work together Enter the infrastructure construction fields of subways, municipalities, highways, and railways at home and abroad. Diameter was signed at the same time at the meeting14.16Manufacturing and technical support contract for m ultra-large slurry shield machine.

The contract equipment is used for the upgrading and reconstruction project of Hangzhou Wenyi Road (Zijinggang Interchange-Jingchang Avenue). The project plays an important role in the development of Hangzhou. It can not only meet the supporting needs of transportation infrastructure such as Chengxi Haichuang Base, Alibaba, Future Science and Technology City, West Lake University, etc., but also become an important external communication channel in Yuhang District. The highway, the high-speed railway station in the west of the city, and the second airport are connected to form an important entrance and exit for external transportation in the west of the city.

The tunnel is a north-south double line, the length of the north line tunnel is 2220m, and the length of the south line tunnel is2209.24mThe main crossing strata are silty clay layer and silty sand layer. When entering the tunnel, the covering soil belongs to ultra-shallow covering soil construction, and the phenomenon of "floating up" of the tunnel is very likely to occur if you are not careful. Due to the large excavation section of the shield, the crossing stratum is a soft soil layer, which is easy to cause the instability of the excavation surface, and the large amount of groundwater is easy to produce piping, flowing sand and vibration liquefaction, which may cause sudden ground collapse in severe cases. The compressive strength of strongly weathered glutenite or moderately weathered glutenite in some sections of the south line of the tunnel is up30MPaThe above will lead to greater wear of the tool, thus affecting the tunneling construction.

ContractThe equipment is the pinnacle in the field of shield machine manufacturing, and is also one of the fist products of the 3rd and 3rd industries. The cutter head has a diameter of 14.16 meters, a total length of 145 meters, and a weight of more than 3000 tons. It integrates mechanical, hydraulic, electrical PLC, laser guidance and network control, with an installed power of 8000KW, a total driving thrust of 23000 tons, and a torque of 4000T.m. The special wear-resistant alloy, gas-liquid balance control system, mud circulation scouring system and gravel machinery for equipment pipeline laying have high scientific and technological content, and the integrated box culvert synchronous assembly technology is the world's leading technology. It can effectively shorten the construction period and ensure the wear resistance and service life of the equipment during tunneling construction. It is a trend product in the field of underground space construction in the future. After the tunnel is completed, the bottom layer can run high-speed rail, motor cars and subways, and the upper layer can be used as a comprehensive pipe gallery to install power, communication, heating, gas supply and other pipelines, which greatly improves the efficiency of space utilization.
There are only a few companies that truly master the manufacturing technology of super-large slurry shield machines in the world, and there are very few domestic companies that can master the construction technology of slurry shield machines. With international leading technology and strict quality control, Sansan Industry has joined hands with Sanyang Construction to make great strides into the field of river-crossing and sea-crossing projects.
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