Reinforcement method of pile foundation

Abstract

The invention discloses a pile foundation reinforcement method, which includes the steps of drilling-grouting-grouting-plugging. The beneficial effect of the invention is that the upper ends of several hollow positions are drilled through drill rods, which improves the time for pile foundation reinforcement. , the efficiency of drilling holes in the hollow position of the pile foundation, thereby improving the overall work reinforcement efficiency of the pile foundation reinforcement method, and through the rotation of the turntable, it drives several drilling frames to rotate and mobilize synchronously to ensure that the drilling frame on the drilling device is aligned with the pile The drilling accuracy of the hollow position on the foundation is higher, which ensures more time-saving and labor-saving when the pile foundation is reinforced; the hydraulic pump 4 pushes the slurry box back and forth through the hydraulic rod 3, so that the grout opening and the grouting pipe can be turned and adjusted , to prevent the grout in the grouting pipe from clogging, to ensure that the grouting device grouts the hollow of the pile foundation more smoothly, to ensure that the hollow of the pile foundation is filled with slurry more fully and comprehensively, and to improve the quality of the pile foundation being reinforced.

Description

technical field [0001] The invention relates to the technical field of pile foundation reinforcement, in particular to a pile foundation reinforcement method. Background technique [0002] Pile foundation refers to a deep foundation (see figure) composed of piles and pile caps (referred to as caps) connected to the top of the piles or a single pile foundation connected by columns and pile foundations. If the pile body is completely buried in the soil and the bottom of the cap is in contact with the soil, it is called a low cap pile foundation; if the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high cap pile foundation. Pile foundations are widely used in high-rise buildings. [0003] After the pile foundation is erected, the pile foundation needs to be reinforced. During the use of the existing pile foundation reinforcement method, the efficiency of drilling the preset hollow groove of the pile foundatio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor drilling efficiency of the preset hollow grooves of the pile foundation during the use of the existing pile foundation reinforcement method, and the overall implementation of the pile foundation reinforcement method takes a long time, which affects the overall pile foundation. The construction progress of the foundation reinforcement, and the drilling device used in the reinforcement process is not accurate and suitable for the drilling position of the hollow groove of the pile foundation, which is easy to cause friction damage to the pile foundation components at the edge of the hollow groove, and the pile foundation is grouted During the reinforcement process, the efficiency of grouting to the hollow groove is slow, and the grouting is not dense enough, resulting in the problem of low overall strength of the pile foundation after reinforcement, and a reinforcement method for the pile foundation is proposed

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