Stirring pile pit supporting construction

Abstract

The invention discloses a foundation pit support structure for mixing piles, which comprises a concrete mixing pile, an anchor pile and a steel halter. The anchor pile is on the axis which goes through the concrete mixing pile and is vertical to the side of the foundation pit; the steel halter is respectively connected with the concrete mixing pile and the anchor pile. By adopting the proposal, the foundation pit support structure for mixing piles of the invention adds the anchor pile to the base of the concrete mixing pile, and the concrete mixing pile and the anchor pile are connected by the steel halter. As a result, the horizontal force jacked by the mixing pile on the soil is offset by the tension of the steel halter, thereby improving the stress state of the concrete mixing pile, increasing the anti-overturning ability of the concrete mixing pile, reducing the section width of the mixing pile compared with the engineering that has the same conditions, and saving engineering cost.

Description

technical field [0001] The invention relates to a deep foundation pit support structure in building construction, more specifically to a stirring pile foundation pit support structure. Background technique [0002] Among the foundation pit support methods, soil nails and composite soil nails are widely used, and the cost is relatively low. However, if soil nails or composite soil nails cannot be used due to soil quality and depth of the foundation pit, deep mixing is generally used. pile support structure. The existing mixing pile support structure is a concrete pile on the edge of the arranged foundation pit, so that on the one hand, when digging the pit, the soil at the edge of the pit can be prevented from collapsing, and on the other hand, the pit wall can be prevented from seeping water into the pit. Since the above-mentioned mixing pile support structure relies on the gravity of the mixing pile itself to maintain the stability of the slope, the displacement of the pil...

AI Technical Summary

Problems solved by technology

Since the above-mentioned mixing pile support structure relies on the gravity of the mixing pile to maintain the stability of the slope, the displacement of the pile top under the horizontal force of the soil is too large, which may easily cause the overall overturning of the pile wall

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