Method for constructing engineering pile by combining rotary drilling rig with manual pile base chambering

Abstract

The invention relates to a method for constructing an engineering pile by combining a rotary drilling rig with manual pile base chambering, which comprises the following steps: (1) preparation work before construction, including field leveling; (2) pile lofting; (3) pile casing embedding; (4) rig installation and rotary drilling; (5) manual pile base chambering; (6) rotary drilling drill quality detection; (7) reinforcement cage manufacturing; (8) reinforcement cage installation; (9) preparation before casting, mainly including hole cleaning, final hole acceptance check, and pump concrete casting quality safeguard measure; and (10) concrete casting, mainly including guide pipe installation, concrete casting and sampling for test and pile forming. In the method for constructing the engineering pile by combining the rotary drilling rig with the manual pile base chambering, the high efficiency of the rotary drilling rig is fully utilized, and the manual pile base chambering is utilized, the advantages of the rotary drilling rig and the manual pile base chambering are combined to make up the defects of the rotary drilling rig and the manual pile base chambering. The construction steps are detailed; the process flow is clear and definite; the construction quality of the engineering pile is ensured through an effective detail measure; the construction process of the rotary drilling rig and the process step of the manual pile base chambering are combined as a whole to realize the effective allocation of a construction field, a construction machine and construction time; and when the construction quality is ensured, the construction efficiency of a digging pile is greatly increased, thereby, the construction time of the engineering pile can be greatly saved, and the construction period requirement of the project is met.

Description

technical field [0001] The invention relates to a building foundation and foundation construction technology, in particular to a construction engineering pile technology combined with a rotary drilling rig and artificial bottom expansion. Background technique [0002] Foundation and foundation engineering is one of the leading projects of building construction, and it is also a sub-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 ...

AI Technical Summary

Problems solved by technology

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 it takes a long time.

Another method is to use a rotary excavator to form a hole. Although the hole forming speed is fast, due to the poor effect of mechanical bottom expansion, the bottom of the hole is not cleaned cleanly, and the quality of the hole is not ideal.

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