Side-discharging construction method for subway station shared underground wall

Abstract

The invention relates to a side discharging construction method of a common diaphragm wall of a subway station, which comprises the following steps: V1ing, soil reinforcement: the soil reinforcement is done near the outer side of the common diaphragm wall of a subway station in a new underground structure foundation pit, thereby strengthening the stability of an enclosure protection system of a station. V2ing, reverse construction: the new structure of the outer side of the common diaphragm wall uses the reverse construction. Through using the reverse construction, a structure floor slab which is completed by the reverse construction is capable of forming an effective supporting function for the common diaphragm wall, thereby reducing the exposure time of the common diaphragm wall, fully using the time-space effect, increasing the unearthed efficiency, increasing the time of foundation pit excavation and the support construction time, and the support is done along with digging. The construction method of the invention is capable of effectively controlling the deformation of the side direction of the common diaphragm wall of the subway station after unloading.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for lateral unloading of a shared underground wall that can effectively control the deformation of a subway station when the shared underground continuous wall is unloaded laterally at the subway station. Background technique [0002] With the rapid development of urban subway networks, it is often necessary to renovate existing subway stations or their surroundings, such as building subway transfer halls at subway hub stations. Unloading is inevitable due to the need to unload the shared underground diaphragm walls of subway stations It will cause the deformation of the subway station in operation. At present, the following measures are mainly adopted in response to this situation: open-cut and smooth method, block-by-block construction, reducing unloading volume and other methods. The above method is a conventional construction method. Although it can pro...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for lateral unloading of the shared underground wall of the subway station that can effectively solve the deformation of the subway station, so as to overcome the above-mentioned defects in the prior art