坪东隧道运营期突涌水及渗漏水治理方案  

Management Plan about Sudden Gushing and Water Leakage of Pingdong Tunnel during Operation

作　　者：曹校勇[1] 奚魏征[1] 吕新民 

机构地区：[1]中交第一公路勘察设计研究院有限公司隧道轨道分院,西安市710075 [2]中铁五局一公司,长沙市410117

出　　处：《公路》2014年第12期237-241,共5页Highway

摘　　要：坪东隧道左洞运营期间发生突涌水及渗漏水,并产生二衬裂缝,对运营和结构安全造成较大威胁。结合隧址区地层岩性、地质构造、水文地质特征、补充物探勘察和雷达探测结果,对隧道突涌水、渗漏水的原因进行了分析,研究了可能的治理方案,提出了"以排为主"的原则,确定了洞内引排地下水、裂缝和面渗点压注环氧树脂的处治方案,避免了衬砌周围水压增大,引起二衬破坏的风险,节约了工程费用和工期。病害治理于2012年12月结束,经历了2013年雨季的考验,该方案的实施未对隧址区居民生产生活造成不利影响,隧道内未再发生病害。Sudden gushing and water leakage occurred during operation phase in Pingdong Tunnel which caused tunnel lining cracked,and great threat to the structure and work safety.Based on the strata lithology,geological structure, hydro-geological characteristics of tunnel site and the results of complementary geophysical survey and radar test,the reasons of sudden gushing and water leakage are analyzed.The possible management plans are studied,the principle of ＂given priority to drain out＂is proposed.The management plan of diverting groundwater in tunnel and injecting epoxy resin in the cracks and seepage points is determined to avoid the risk of lining collapse due to the water pressure increasing,and consequently the project cost and construction time are saved.Disease treatment ended in December2012 and passed through the test of the rainy season in 2013.The scheme hasn＇t caused adverse effects to the residents near the tunnel,and same disease doesn＇t happen again in the tunnel.

关 键 词：坪东隧道 突涌水 渗漏水 裂缝 治理方案 

分 类 号：U453.61[建筑科学—桥梁与隧道工程]