岩溶隧道帷幕注浆施工技术标准的探讨

On Technical Standard for Curtain Grouting in Karst Tunnels

探讨岩溶隧道帷幕注浆的起始标准和注浆结束标准。介绍根据隧道允许排水量制订帷幕注浆起始标准、注浆段的注浆结束标准 ;根据注浆终压、注浆量制订单孔结束标准。对单孔结束标准 ,根据工程实践 。

A discussion was made on standard for grouting at starting and ending of the construction. The initial and ending grouting standard was developed according to permissible drainage volume of tunnels, and single hole ending grouting standard was developed according to final grouting pressure and grout volume. An empirical equation was raised for single hole ending grouting standard.