Down-the-hole hammer guide hole and rotary jet grouting integrated drilling structure

The utility model relates to the technical field of pile forming construction, and discloses a down-the-hole hammer hole guiding and jet grouting integrated drilling structure which comprises a drilling rod, the lower portion of the drilling rod is connected with a down-the-hole impactor, and the do...

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Bibliographic Details
Main Authors HUANG TAO, WANG GANG, YUAN WEI, LEI BIN, ZHANG DAAO, LIAO QIMING, DAI JINHONG, YANG JING
Format Patent
LanguageChinese
English
Published 02.09.2022
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The utility model relates to the technical field of pile forming construction, and discloses a down-the-hole hammer hole guiding and jet grouting integrated drilling structure which comprises a drilling rod, the lower portion of the drilling rod is connected with a down-the-hole impactor, and the down-the-hole impactor is provided with a down-the-hole impact head for impacting and drilling in a rock filling layer. A rotary jet air pipe communicated with the rotary jet air compressor, a down-the-hole hammer air pipe communicated with the down-the-hole hammer air compressor and a rotary jet grouting pipe communicated with the high-pressure grouting pump are arranged in the drill rod; the rotary gas ejector pipe ejects high-pressure gas to drive the down-the-hole impact head to impact downwards, a nozzle is arranged on the lower portion of the drill rod, and the nozzle communicates with the rotary gas ejector pipe and the rotary slurry spraying pipe; in the guide hole drilling process, stratum gaps in a rock fil
Bibliography:Application Number: CN202220650821U