Foundation pile foundation hole forming construction method

Abstract

The invention discloses a foundation pile foundation hole-forming construction method which solves the technical problems that in the prior art, the efficiency of foundation pile foundation hole-forming construction is low, or the chambering effect of an expanded head in foundation pile foundation hole-forming is not ideal. The method comprises the following steps: step 1, arranging a site; step 2, surveying and setting out; thirdly, a drilling machine is in place; 4, drilling to form a hole; step 5, mounting a steel casing; sixthly, an expanded head is excavated; and step 7, pore-forming detection. The device is scientific and reasonable in design and convenient to operate, not only can rapidly construct and form holes to meet the construction progress, but also can efficiently clear pile bottom slag to rapidly finish hole pile expanded head reaming construction, and the expanded head reaming construction effect is good.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a hole-forming construction method for foundation pile foundations. Background technique [0002] Foundation and foundation engineering is one of the leading projects of building construction, and it is also a part of the project with relatively complex construction technology, greater difficulty, longer construction period and more investment. In recent years, with the rapid development of my country's economic construction, urban construction has increased day by day, and the importance of foundation and foundation construction has attracted increasing attention and attention from all parties. At present, most large and medium-sized buildings in my country use pile foundations, and engineering piles generally use two methods. One is to use manual excavation. Although the quality of the holes is good, the degree of mechanization is low, and the hole-for...

AI Technical Summary

Problems solved by technology

However, the current manhole excavation piles still have the following disadvantages: high risk, difficult safety control, high labor intensity before pile foundation construction, long construction period, and high cost of safety measures

The expansion head of the rotary excavation pile has limited reaming effect, the shape and size of the reamed hole cannot meet the design requirements, and the slag at the bottom of the pile cannot be effectively removed within the range of the expansion head, which affects the quality of the pile.

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