Hole guiding device and hole guiding method for bad ground

Abstract

The invention relates to a hole guiding device and a hole guiding method for a bad ground. The hole guiding device comprises a breaking hammer main body (1), a first drilling rod (2), a second drilling rod (3) and a stiffening plate (4), wherein the breaking hammer main body (1) is connected with the first drilling rod (2); and the first drilling rod (2) is connected with the second drilling rod (3) by using the stiffening plate (4), a high-strength bolt or a welding joint (5). The hole guiding device has the advantages that: by adoption of a caterpillar excavator, the running speed is high, the requirement on a construction site is low, and construction can be performed under a bad ground condition, wherein the caterpillar excavator is common equipment and has adjustable power; fully-mechanized construction is performed, the hole forming time is short, the efficiency is high, and in practice, only 2 minutes is required to perform hole guiding on 5-meter-thick block stone earth-filling layer; and the hole guiding is performed in a vibrating compaction mode, and hole falling and hole collapsing phenomena cannot happen, so the hole guiding device is most suitable for injected holes with large areas, a plurality of holes and small intervals, high-pressure jet grouting drilled holes and guided holes of anchor rod jacked piles, and is also suitable for reconnaissance drilled holes with large hole pitches.

Description

technical field [0001] The invention relates to the technical field of drilling, in particular to a hole introduction device and a hole introduction method for complex formations. Background technique [0002] During the construction process of engineering geological survey and foundation treatment (including high-pressure rotary grouting, grouting, and pile pressing), the upper stratum often encounters complex stratum sites filled with miscellaneous fills and other hard materials. How to quickly and effectively penetrate this It has always been a technical problem to carry out drilling and foundation treatment construction in similar strata. The traditional hole introduction technology mostly uses geological survey drilling rigs and down-the-hole drills to introduce holes. These hole introduction equipment and the technical methods used generally have low hole-forming efficiency, long construction period, high cost and low hole-forming rate, and are affected by site conditi...

AI Technical Summary

Problems solved by technology

The traditional hole introduction technology mostly uses geological survey drilling rigs and down-the-hole drills to introduce holes. These hole introduction equipment and the technical methods used generally have low hole-forming efficiency, long construction period, high cost and low hole-forming rate, and are affected by site conditions. (working headroom or power conditions) limitations, difficulty in moving equipment, etc.

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