Manual hole digging pile construction process for quicksand geologic condition

Abstract

The invention discloses a manual hole digging pile construction process for a quicksand geologic condition. The process comprises the following steps: 1, setting out and positioning are carried out; 2, a first-section pile hole is dug and a first-section retaining wall is poured; 3, a template support detection frame is arranged in a retaining wall template, and the retaining wall forming qualityis detected; 4, the next layer of earthwork is dug; 5, retaining wall concrete is poured; 6, the fourth step and the fifth step are repeated, if serious quicksand soil is encountered during the digging process, digging is stopped and the retaining wall template is assembled and hoisted in a pile hole, after the retaining wall template is hoisted, a sunk-well method is adopted to clear the quicksand in the hole, and every time a section is cleared, the retaining wall template moves downward for a section under the action of the self-weight until all quicksand outside the template is cleared, and then, pouring of retaining wall concrete is carried out; 7, acceptance check is carried out; 8, a reinforcing cage is made and hoisted; and 9, pile body concrete is poured. The obtained manual holedigging pile construction process for the quicksand geologic condition disclosed in the invention is simple and can handle the quicksand soil.

Description

technical field [0001] The invention relates to the field of pile hole construction, in particular to a construction technique for manual hole-digging piles used in quicksand geology. Background technique [0002] Manual digging piles are reinforced concrete piles that are excavated by manpower and poured on site. Because of their simple construction equipment, small construction site occupation, no impact on surrounding buildings, reliable pile body quality, and low cost, they are popular at home and abroad. be more widely used. The common construction method is to manually excavate the soil (rock) to form a round hole, and every 1 meter or so to dig a formwork and pour a circle of concrete retaining wall, so as to continue to dig until the depth required by the design. When adopting the above-mentioned method for construction, if the relatively serious quicksand geology is encountered, the sand and soil tend to flow to the middle continuously during excavation, making it ...

AI Technical Summary

Problems solved by technology

When using the above method for construction, if you encounter more serious quicksand geology, the sand will easily flow to the middle during excavation, making it impossible to continue excavation, which will affect the construction progress

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