重庆建筑
重慶建築
중경건축
CHONGQING ARCHITECTURE
2014年
7期
26-29
,共4页
渝怀铁路%溶洞%工法%平导扩挖%注浆法%管幕法%冻结法%水平旋喷法
渝懷鐵路%溶洞%工法%平導擴挖%註漿法%管幕法%凍結法%水平鏇噴法
투부철로%용동%공법%평도확알%주장법%관막법%동결법%수평선분법
Yuhuai railway%karst cave%construction method%level expanding excavation%grouting method%freezing method%horizontal rotary grouting
既有圆梁山隧道2号充填溶洞施工发生多次涌水涌泥，对工程建设造成极大影响；新圆梁山隧道位于既有隧道右侧30m，为既有平导扩挖。为了降低施工风险，施工时需对围岩进行预支护，通过几种工法对比分析，最终确定采用水平旋喷法对掌子面进行加固，确保安全。
既有圓樑山隧道2號充填溶洞施工髮生多次湧水湧泥，對工程建設造成極大影響；新圓樑山隧道位于既有隧道右側30m，為既有平導擴挖。為瞭降低施工風險，施工時需對圍巖進行預支護，通過幾種工法對比分析，最終確定採用水平鏇噴法對掌子麵進行加固，確保安全。
기유원량산수도2호충전용동시공발생다차용수용니，대공정건설조성겁대영향；신원량산수도위우기유수도우측30m，위기유평도확알。위료강저시공풍험，시공시수대위암진행예지호，통과궤충공법대비분석，최종학정채용수평선분법대장자면진행가고，학보안전。
The frequent water and mud gushing during the No.2 karst cave filling construction of Yuanliang Tunnel has great impact on construction of the project. The new tunnel is located at the right side of the old tunnel, 30 meters' distance, expanded from excavation. To lower construction risk, the surrounding rock should be supported during construction. Through comparison among several construction methods, horizontal rotary grouting is adopted to reinforce face for security.
