The Construction Method of Removing Staged Wall and Temporary Support in Staged Construction of Deep Foundation Pit

Abstract

The invention discloses a construction method for dismounting a staging wall and a temporary support in staging construction of a deep foundation pit. The construction method comprises the following steps: (1) the staging wall is constructed; and with the staging wall as boundary, the foundation pit engineering construction of a front pit is performed until a foundation baseplate is finished and a basement structure of the front pit is formed; (2) with the staging wall as boundary, the earth excavation of a back pit is begun, and meanwhile, the temporary support construction is performed to finish a foundation baseplate of the back pit; (3) the temporary support of the back pit is dismounted from bottom to top layer by layer, and a basement structure of the back pit is constructed; (4) beam through holes are formed in all layers of structural beams of the front pit corresponding to the staging wall; the back pit is connected with the structural beam on the same layer of the front pit as a whole through the beam through holes to form one complete structural beam until the basement structure of the back pit is finished; and the staging wall is dismounted from top to bottom at a time; and (5) the vacancy filling of all layers of structures is finished. The construction method can improve the construction efficiency and save the cost, satisfies the development requirements of green construction, and overcomes secondary deformation defect of the deep foundation pit.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for removing phased walls and temporary supports in phased construction of deep foundation pits. Background technique [0002] For soft soil deep foundation pit support with front and rear sub-pit construction, a staging wall needs to be set between the front pit and the rear pit. The traditional method is to adopt the same construction process for the front pit and the back pit, that is, first work to the bottom of the pit, set up supports during the period, then remove the supports from bottom to top and complete the construction of each layer of the deep foundation pit underground structure, and finally separate layers , in batches, and in stages, the demolition of the staged walls is carried out. This method is time-consuming and labor-intensive, and requires a large number of temporary supports, resulting in a waste of materials and manpo...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the above deficiencies and provide a construction method for the removal of phased walls and temporary supports in the phased construction of deep foundation pits, so as to improve construction efficiency, save labor, materials and time costs, and meet the requirements of green construction. Development requirements, and overcome the defects of deep foundation pit secondary deformation

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