Research on Ground Pre-grouting Single Liquid Cement Base Composite Grouting Material for L-borehole

LI Fang

Safety in Coal Mines > 2015 > 46(10): 32-35,39.

LI Fang. Research on Ground Pre-grouting Single Liquid Cement Base Composite Grouting Material for L-borehole[J]. Safety in Coal Mines, 2015, 46(10): 32-35,39.

Citation:

LI Fang. Research on Ground Pre-grouting Single Liquid Cement Base Composite Grouting Material for L-borehole[J]. Safety in Coal Mines, 2015, 46(10): 32-35,39.

Citation:

LI Fang. Research on Ground Pre-grouting Single Liquid Cement Base Composite Grouting Material for L-borehole[J]. Safety in Coal Mines, 2015, 46(10): 32-35,39.

Research on Ground Pre-grouting Single Liquid Cement Base Composite Grouting Material for L-borehole

LI Fang

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Published Date: October 19, 2015

Graphical Abstract

Abstract

Abstract

In order to meet the special requirement of L-borehole ground pre-grouting technology on grouting material, the mix proportion of bentonite-silicon powder stabilizer is determined by orthogonal test, the optimum ratio of single liquid cement base composite grouting material is proposed by comparatively studying the stability effect of two different retarders on cement. By the comparison test, it is proved that the single liquid cement base composite grouting material can guarantee good pump-ability and improve the compressive strength and could be applied to the L- borehole ground pre-grouting with good effect.
- L-borehole ground pre-grouting,
- composite grouting material,
- stabilizer,
- retarder,
- surrounding rock control

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