Method for making underground box culverts through open type shield tunneling machine

Abstract

The invention discloses a method for making underground box culverts through an open type shield tunneling machine. The method includes the following steps that the open type shield tunneling machineis used for advancing from an originating well to a receiving well, and the top of the open type shield tunneling machine is flush with the ground; soil mass excavating and transferring are carried out on ground in front of the open type shield tunneling machine through an excavator; the open type shield tunneling machine stops after advancing by a preset distance every time, a culvert box hoisting mechanism on the ground is used for hoisting culvert bodies to enter a culvert body guide-in box in the open type shield tunneling machine, and the culvert bodies are connected with mounted culvertbodies; after the culvert bodies are mounted, the open type shield tunneling machine continues to be controlled to advance forwards; and the operation is repeated until the underground box culverts are made. The method has the beneficial effects that (1), the construction influence range of the shield tunneling machine is narrower than the construction range in an open cut method, and the shield tunneling machine can be used for narrow construction occasions; (2), holes in the side faces and the bottoms of the culvert boxes are filled with synchronous grouting materials, and the influences onsurroundings are reduced; and (3), a shield tunneling oil cylinder is adopted for pushing, and noise and vibration can be reduced.

Description

technical field [0001] The invention belongs to the technical field of underground box culverts, and in particular relates to a method for constructing underground box culverts by using an open shield machine. Background technique [0002] At present, the construction of underground box culverts in cities mostly adopts the construction method of sloping excavation and cast-in-place support. This method has a large workload on site, difficulty in ensuring the quality of on-site pouring of underground box culverts, maintenance time of underground box culverts, and impact on the surrounding environment. Great disadvantages; recently, the construction methods of prefabrication in the factory, underground box culvert transportation, and on-site assembly and tensioning have emerged. This method uses excavators to excavate slopes on site, and underground box culverts are transported by conventional trailers, truck cranes or crawler cranes, etc. Lifting form. Due to the large slope...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction of underground box culverts in cities mostly adopts the construction method of sloping excavation and cast-in-place support. This method has a large workload on site, difficulty in ensuring the quality of on-site pouring of underground box culverts, maintenance time of underground box culverts, and impact on the surrounding environment. Great disadvantages; recently, the construction methods of prefabrication in the factory, underground box culvert transportation, and on-site assembly and tensioning have emerged. This method uses excavators to excavate slopes on site, and underground box culverts are transported by conventional trailers, truck cranes or crawler cranes, etc. Hoisting form

Due to the large slope next to the foundation pit of the underground box culvert and the bearing problem on the slope, the crane station is far away, and only small-tonnage underground box culverts can be lifted for assembly.

[0003] In addition, due to the long hoisting wire rope, the assembly accuracy of the underground box culvert is affected

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