The Construction Method of Shield Crossing the Anchor Cable Area

Abstract

The invention relates to a construction method for a shield tunneling machine passing through an anchor cable area. The construction method comprises the following steps that anchor cables are treatedthrough a rotary drill, the anchor cables are wound through a drill bit of the rotary drill, the anchor cables wound on the drill bit are pulled out, thus the whole anchor cables are snapped or pulled out, and anchor cable sections of the snapped anchor cables are reserved in the anchor cable area; soil in the anchor cable area is reinforced; and the shield tunneling machine conducts tunneling topass through the anchor cable area, in the tunneling process, a storehouse is opened to inspect a cutterhead, and the anchor cable sections wound on the cutterhead are cleared so that the shield tunneling machine can smoothly pass through the anchor cable area. According to the construction method, a needed site is small, the construction method is suitable for districts located in cities and carrying with dense pipelines and heavy traffic, the shield tunneling machine smoothly passes through the anchor cable area, the construction problem of the shield tunneling machine passing through the anchor cable area is solved, the construction progress is accelerated, the construction cost is saved, and the good application and popularization value is achieved.

Description

technical field [0001] The invention relates to the technical field of shield tunneling engineering, in particular to a construction method for a shield tunneling through an anchor cable area. Background technique [0002] With the vigorous development of my country's urban rail transit construction projects, rail transit planning and construction will face more and more complex working conditions, and crossing the anchor cable area is one of them. When the shield machine encounters the anchor cable, it will not only cause severe disturbance to the ground, but also have a serious impact on the foundation pit enclosure structure, surrounding roads, buildings and pipelines, and will cause abnormal parameters such as shield machine torque and thrust, and even cause tool damage. , cutter head, soil bin, screw machine, main bearing and other equipment were damaged, and the shield machine could not excavate normally. In China, three schemes are generally used for construction: hy...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, provide a construction method for shield tunneling through the anchor cable area, and solve the problem that the existing construction method for pulling out the anchor cable has a large site demand and is not suitable for urban areas with dense pipelines and heavy traffic The problem

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