Foundation pit support construction method for replacing continuous wall: Fid-Bau Portal

Foundation pit support construction method for replacing continuous wall

FU LIKAI

According to the foundation pit supporting construction method replacing the continuous wall, the vertical supporting and pulling bodies are inserted into the soil layer to be tensioned and fixed to the soil layer, the construction area is defined by the vertical supporting and pulling bodies, soil in the construction area is removed to form a foundation pit, then the building formwork is inserted into the construction area to be fixed to the soil layer, and the blocking effect is achieved; a lateral supporting and pulling body is arranged on the building formwork, the first end of the lateral supporting and pulling body is fixed to the building formwork, the building formwork is tensioned towards a soil layer on the outer side of the foundation pit, the second end of the lateral supporting and pulling body is fixed to the soil layer on the outer side of the foundation pit, and the soil layer on the outer side of the foundation pit is tensioned towards the building formwork, so that an existing continuous wall construction method is completely replaced; a continuous wall and an inner support are replaced, construction is efficient, cost is saved, the vertical supporting and pulling body tensions and fixes the soil layer in the vertical direction, and the defect of water and soil loss caused by a wall bottom ditch generated by the continuous wall in the prior art can be overcome.

本发明提供一种替代连续墙的基坑支护施工方法，该方法通过向土层插入竖向撑拉体与土层拉紧固定，竖向撑拉体围成施工区，施工区内的土壤经去除形成基坑，再通过在施工区插入建筑模板与土层固定，实现阻挡效果，再通过在建筑模板上设置侧向撑拉体，侧向撑拉体的第一端与建筑模板固定，将建筑模板向基坑外侧的土层拉紧，侧向撑拉体的第二端与基坑外侧的土层固定，将基坑外侧的土层向建筑模板拉紧，彻底替代了现有连续墙施工方法，取代连续墙和内支撑，不仅施工高效，节约成本，而且竖向撑拉体在竖直方向对土层进行拉紧固定，可避免现有技术中连续墙产生墙底沟渠造成水土流失的缺陷。

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