Method for arranging advanced water exploration and drainage holes of water-rich soft-rock rapid tunneling roadway
The invention discloses a method for arranging advanced water exploration and drainage holes of a water-rich soft-rock rapid tunneling roadway. The method comprises the following steps of constructing a group of advanced water exploration and drainage holes every 50 m from a position of being 20 m a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for arranging advanced water exploration and drainage holes of a water-rich soft-rock rapid tunneling roadway. The method comprises the following steps of constructing a group of advanced water exploration and drainage holes every 50 m from a position of being 20 m away from a lower crossheading door. By using the method disclosed by the invention, the water-rich conditions in front of the roadway, at two sides of the roadway and at a roof can be detected, and safe and normal tunneling is ensured.
本发明公开了一种富水软岩快速掘进巷道超前探放水孔布置方法,包括步骤:下顺槽开门20m处开始,每50m施工一组超前探放水孔。本发明的方法能够探明巷道前方、两侧、顶板富水情况,确保安全、正常掘进。 |
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