Sleeve valve pipe karst grouting construction method
The invention relates to a sleeve valve pipe karst grouting construction method and relates to the technical field of karst grouting construction. The problems that hole types need to be identified inthe whole process of drilling, steps are complex, and the overall construction workload is increased...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
09.06.2020
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Subjects | |
Online Access | Get full text |
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