Key Technology for Water Inrush Identification and Remediation of Grade in Soft Rock Water-rich Tunnels
During the construction process of tunnels and underground engineering,the prevention and emergen-cy treatment of undesirable geological water inrush are very important.It involves many aspects such as the construction progress of the tunnel,environmental protection and public safety.The identification of water in-rush is usually evaluated from the aspects of water volume,pressure,frequency and intensity,combined with geological survey reports and hydrometeorological data,so as to accurately judge the possible risks.For the re-mediation of water inrushes,the first task is to determine the location,scale,pressure and possible scope of in-fluence of the water inrush point.Then,according to the structural characteristics and construction conditions of the tunnel and underground engineering,the corresponding remediation plan needs to be formulated.In this paper,by summarizing the key technologies for the remediation of the inrush of the tunnel face of a water-rich section of soft rock,the measures of backfilling of the slag,concrete sealing of the tunnel face,the addition of drainage holes,the addition of arch reinforcement of the primary support,the strengthening of the advanced support and the radial reinforcement of the primary support section are used together,which effectively solves the problem of water inrush remediation in the soft rock section and provides experience for similar projects in the future.
Soft rock and rich waterSudden water surgesGrading discriminationTunnel
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维普
