Alluvial plain karst developing district drilling pile formation wall protection mud and preparation method thereof

Abstract

The invention discloses alluvial plain karst developing district drilling pile formation wall protection mud which is prepared from the components in parts by mass: 100 parts of water, 6-10 parts of clay, 5-14 parts of sodium bentonite, 0.2-0.3 part of sodium carbonate, 0.002-0.005 part of polyacrylamide, 0.5-0.6 part of carboxymethyl hydroxypropyl cellulose, 0.6-0.9 part of water glass, 0.1-0.3 part of ferric chromium lignin sulfonate, 0.1-0.3 part of barite powder and 0.25-0.5 part of potassium humate. The mud prepared by the invention is suitable for an alluvial plain karst developing district drilling pile formation technology and lowers the probability of occurrence of safety accidents of drilling pile formation. A result of interaction of the mud and a stratum is changed by changingthe performance index of the mud, so that the safety coefficient of construction is increased, and the technical defect of drilling a complex strata is made up.

Description

Technical field: [0001] The invention belongs to the field of building materials, in particular to the technical field of drilling pile-forming mud in alluvial plain karst development areas. Background technique: [0002] In engineering construction, holes (such as cast-in-situ piles, etc.) or deep grooves (such as cut-off walls, etc.) are often drilled in gravel soil strata to pour pile foundations or pour concrete seepage walls in situ. How to improve the hole-forming and trough-forming quality of bored piles or cut-off walls in complex strata has been paid more and more attention by engineers and technicians. Bored piles are favored by people for their high single pile bearing capacity, high shear compressive strength, easy construction, not subject to stratum conditions, and not easy to deform and break piles. preferred basis. With the increase of the number of high-rise buildings and the increase of the span of bridge engineering, the load on the foundation is increas...

AI Technical Summary

Problems solved by technology

However, the mud combination ratio used in the drilling and piling technology tends to be consistent and there is no innovation, which greatly limits the application range of the drilling and piling technology

At the same time, since the same mud cannot be applied to all landforms, it is necessary to develop mud suitable for different landforms according to different landforms.

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