软岩巷道中地下水流自动封闭机理分析

Analysis of groundwater's self sealing mechanism in softrock roadway

地下水对软岩巷道的支护具有重要影响，需要采取避开或封闭措施。在具有膨胀性和崩解性的软岩巷道中，地下水流存在自动封闭现象，本文研究了它的机理。研究表明，地下水的自动封闭缘于软岩膨胀机制和崩解粉末堵塞机制及二者的相互作用。

Groundwater has an important influence on the supporting of soft rock roadway. It is required to take measures of avoiding or sealing its. In the soft rock roadway with distension and disintegration, groundwater current may cause some self sealing phenomena. The mechanism is studied in this paper. The research shows: groundwater's self sealing is due to the soft rock's inflation mechanism and the sisintegration powder's plugging mechanism along with their reciprocity.