西域砾岩交叉洞段围岩支护处理方案探析  

Analysis of surrounding rock support treatment scheme in Xiyu conglomerate cross cave section

作　　者：何若飞[1] HE Ruo-fei

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,新疆乌鲁木齐830000

出　　处：《东北水利水电》2025年第4期17-20,44,71,共6页Water Resources & Hydropower of Northeast China

摘　　要：新疆西域组砾岩为第四系以来所形成的一种沉积岩,具有较特殊的物理力学性质,工程所处地层以泥质胶结为主,局部泥钙质胶结,属弱~微透水层,且遇水易软化,对于处于此类围岩中的交叉隧洞施工干扰大,围岩稳定性较弱,开挖后的支护处理就尤为重要。本文以新疆莫莫克水利枢纽工程为例,针对此类问题提出处理方案,交叉洞段建设完成后运行良好,为同类工程提供参考。The conglomerate of Xiyu-formation in Xinjiang is a sedimentary rock formed since the fourth system,which has special physical and mechanical properties.The stratum in which the project is located is dominated by argillaceous cement,and local argillaceous calcareous cement belongs to weak to slightly permeable layer,and it is easy to soften when exposed to water.Therefore,the construction interference of cross tunnels in such surrounding rocks is great,and the stability of surrounding rocks is weak,so the support treatment after excavation is particularly important.This paper takes Xinjiang Momoke Water Conservancy project as an example to propose a solution to such problems.After the completion of the construction of cross cave section,it runs well and provides reference for similar projects.

关 键 词：西域砾岩 开挖方式 交叉隧洞 支护处理 

分 类 号：TV554[水利工程—水利水电工程] TV543