Construction method for grouting by adopting highly spraying, drilling and grouting integrated machine

Abstract

The invention discloses a construction method for grouting by adopting a highly spraying, drilling and grouting integrated machine. The construction method comprises the following steps: arranging a check ball valve at a spraying nozzle of the highly spraying, drilling and grouting integrated machine; performing drilling operation by adopting the highly spraying, drilling and grouting integrated machine, wherein a high-pressure medium which is used in a drilling process comprises the following components in parts by weight: 75 parts of cement, 45 parts of bentonite, 180 parts of clay, 6 parts of water glass and 300 parts of water; after drilling is completed, performing grouting operation directly, and simultaneously, adding 6 to 9 parts of a cement accelerating agent from the opening of a hole. The construction method has the beneficial effects that the problems of blockage of the spraying nozzle caused by the fact that fine grains in the hole fall back to the spraying nozzle because of blowing-out in a process of connecting a long drilling rod to a drilled hole and serious water leakage in the hole in the drilling process can be solved; meanwhile, the disturbance to a stratum caused by the fact that the spraying, drilling and grouting integrated machine takes air and slurry as drilling media avoided by taking the measures of the check ball valve, the drilling aperture is reduced, the drilling efficiency is improved, and the cost for treating drilling slag and protecting a wall of the drilled hole is reduced.

Description

technical field [0001] The invention relates to the technical field of grouting construction, in particular to a construction method for grouting using a high jet drilling and irrigation integrated machine. Background technique [0002] The principle of high-spray drilling and irrigation integrated high-spray grouting technology is the same as that of conventional high-spray grouting technology, but the high-spray drilling and irrigation integrated machine has made great innovations and improvements to construction tools. Integrate with high-jet grouting, install water, air, and slurry high-pressure injection pipelines in the drill pipe, and equip water, air, slurry and corresponding lifting equipment to move the hydraulic walking trolley integrated with drilling and spraying to the drilling position , using a drill bit with jet holes for drilling construction. When drilling, the high-pressure slurry pump delivers high-pressure flushing liquid medium, and the air compressor ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a construction method for grouting using a high-spray drilling and irrigation integrated machine, which can solve the problem of blocking the nozzle caused by the fine particles in the hole falling back to the nozzle due to the stop of the wind during the process of drilling and extending the drill pipe. Serious problem of water loss in the hole during the drilling process