Deep fractured surrounding rock composite grouting reinforcement method
The invention discloses a deep fractured surrounding rock composite grouting reinforcement method which comprises the following steps: S1, partitioning a deep fractured surrounding rock, and dividing the deep fractured surrounding rock into a completely fractured region, a fractured reduction region...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
01.02.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a deep fractured surrounding rock composite grouting reinforcement method which comprises the following steps: S1, partitioning a deep fractured surrounding rock, and dividing the deep fractured surrounding rock into a completely fractured region, a fractured reduction region, a fractured compression region and a protolith-like region according to the degree of fracture; S2, based on the zoning result of the deep broken surrounding rock, performing slurry permeability characteristic zoning on each broken surrounding rock zone to obtain a slurry high-permeability zone, a slurry medium-permeability zone and a slurry low-permeability zone; S3, performing a grouting test on the construction site, and determining the grouting pressure and the drilling row pitch of each permeability characteristic subarea; S4, selecting a corresponding grouting material for each grout permeability characteristic subareasaccording to the fracture development degree; and S5, conducting drilling and grouting op |
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Bibliography: | Application Number: CN202111187160 |