连拱隧道施工对地下水渗流场的影响研究  

Study of the influence of double-arch tunnel construction on ground water seepage field

作　　者：卓越[1,2] 王梦恕[1] 周东勇[2] 

机构地区：[1]北京交通大学,北京100044 [2]中铁隧道集团,河南洛阳471009

出　　处：《土木工程学报》2010年第5期104-110,共7页China Civil Engineering Journal

摘　　要：以梁—万高速公路金竹林连拱隧道为研究对象,通过现场试验和数值模拟计算,提出了连拱隧道地下水渗流场的变化主要影响因素是隧道埋深、裂隙发育情况、围岩松动圈大小以及施工工序等。研究结果表明,地下水渗流场的改变对连拱隧道结构防排水的影响显著。为了从根本上解决连拱隧道结构渗漏水技术难题,通过数值模拟计算提出了注浆固结V形区地层,能有效的改善地下水渗流场的主要参数。Taking the Jinzhulin tunnel on Liangping-Wanzhou highway as the background,through in-situ tests and numerical simulations,it is concluded that the major factors that influence the ground water seepage fields around the double-arch tunnel include the overburden depth,fracture development,magnitude of loosened rock mass rings and construction sequences and that the variations of the ground water seepage fields significantly influence on the water-proofing and drainage of the double-arch tunnel.The major parameters of the ground water seepage fields can be effectively improved by grouting the V-shaped zones of the tunnel.

关 键 词：连拱隧道 模拟计算 渗漏水 结构防排水 渗流场 

分 类 号：TD853.34[矿业工程—金属矿开采]