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《Coal Geology & Exploration》 2002-01
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A preliminary discussion about pumping grouting

GU Meng-han (Dept. of Civil Eng, Huainan Institute of Technology, Huainan 232001 ,China)  
Up to now grouting parameters for the porous surrounding rocks, depended on the penetrating coefficient for shallow surface soil, is unfit for the deep surface soil grouting. Derived from the most outstanding characteristic of the effects which the grouting pressure has on grout diffusibility, this article poses a method, that suggests grouting and pumping are simultaneously applied, this method will be helpful to increase the grouting hydraulic gradient as well as expand the effective grout diffusivity radius and thus strong then the grouting effciency of the deep surface soil.
【CateGory Index】: TD265.4
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【Secondary References】
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