(1. Geotechnical and Structural Engineering Research Center,Shandong University,Jinan,Shandong 250061,China;
2. China Construction Fifth Engineering Division Co.,Ltd.,Changsha,Hunan 410004,China)
Abstract:Water gushing in limestone breccia fracture zone is a complex geological disaster often encountered in tunnel construction. Compared with the general water gushing in fracture rock mass,due to the poor stability of surrounding rock and rock heterogeneity,gushing treatment in limestone breccias fracture zone is very difficult. For controlling the water gushing in breccias fracture zone with high water pressure and quantity in Zhongliangshan tunnel,water analysis and transient electromagnetic detection were conducted;and groundwater source and channel were analyzed. Based on this,drainage was done first to reduce the water pressure in surrounding rock,then grouting was carried out to strengthen shallow layer. The shallow layer grouting was divided into two parts,i.e. upper part and lower part. Curtain in deep rock was done to plug water. Plugging and drainage were combined in water gushing control. Those four measures formed a comprehensive treatment method. A good control effect was achieved through choosing adaptive grouting materials and matched technology. Surrounding rock deformation and water quantity were measured and analyzed to avoid rock instability induced by grouting pressure. The comprehensive water gushing treatment method well solved the problems during grouting process in breccia fracture zone and realized informatization construction.
[1] 胡文寿,于俊清. 特殊性岩土膏溶角砾岩的工程特性研究[J]. 长安大学学报:地球科学版,2003,25(1):37–41.(HU Wenshou,YU Junqing. Engineering characteristics study of gypsum breccia[J]. Journal of Chang?an University:Earth Science,2003,25(1):37–41.(in Chinese))
[2] 邓建华,黄醒春,彭结兵,等. 膏溶角砾岩不同天然含水率情况下力学特性的试验研究[J]. 岩土工程学报,2008,30(8):1 203–1 207. (DENG Jianhua,HUANG Xingchun,PENG Jiebing,et al. Mechanical properties of gypsum breccia with different water contents[J]. Chinese Journal of Geotechnical Engineering,2008,30(8):1 203–1 207.(in Chinese))
[3] 熊江陵,李建华. 膏溶角砾岩地层大断面隧道快速施工技术[J]. 隧道建设,2010,30(1):43–47.(XIONG Jiangling,LI Jianhua. Technology for rapid construction of large cross-section tunnel in gypsum breccia ground[J]. Tunnel Construction,2010,30(1):43–47.(in Chinese))
[4] 庞 山,宋玉香,朱永全. 太行山隧道膏溶角砾岩地段合理断面型式研究[J]. 石家庄铁道学院学报,2006,19(4):48–51.(PANG Shan,SONG Yuxiang,ZHU Yongquan. Study of rational section of Taihang mountain tunnel in gypsum breccia region[J]. Journal of Shijiazhuang Railway Institute,2006,19(4):48–51.(in Chinese))
[5] 刘招伟,何满潮,王树仁. 圆梁山隧道岩溶突水机制及防治对策研究[J]. 岩土力学,2006,27(2):228–232.(LIU Zhaowei,HE Manchao,WANG Shuren. Study on karst water burst mechanism and prevention countermeasures in Yuanliangshan tunnel[J]. Rock and Soil Mechanics,2006,27(2):228–232.(in Chinese))
[6] 许振浩,李术才,李利平,等. 一种典型的岩溶隧道衬砌压裂突水灾害成因与防治[J]. 岩石力学与工程学报,2011,30(7):1 396– 1 404.(XU Zhenhao,LI Shucai,LI Liping,et al. Cause disaster prevention and controlling of a typical kind of water inrush and lining fracturing in karst tunnels[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1 396–1 404.(in Chinese))
[7] 邬 立,万军伟,陈 刚,等. 宜万铁路野三关隧道“8•5”突水事故成因分析[J]. 中国岩溶,2009,28(2):212–218.(WU Li,WAN Junwei,CHEN Gang,et al. Cause of the“8•5”water burst incident at Yesanguan tunnel along the Yichang—Wanxian railway[J]. Carsologica Sinica,2009,28(2):212–218.(in Chinese))
[8] 蒋建平,高广运,李晓昭,等. 隧道工程突水机制及对策[J]. 中国铁道科学,2006,27(5):76–82.(JIANG Jianping,GAO Guangyun,LI Xiaozhao,et al. Mechanism and countermeasures of water-bursting in railroad tunnel engineering[J]. China Railway Science,2006,27(5):76–82.(in Chinese))
[9] 张 霄,李术才,张庆松,等. 矿井高压裂隙涌水综合治理方法的现场试验[J]. 煤炭学报,2010,35(8):1 314–1 318.(ZHANG Xiao,LI Shucai,ZHANG Qingsong,et al. Filed test of comprehensive treatment for high pressure dynamic grouting[J]. Journal of China Coal Society,2010,35(8):1 314–1 318.(in Chinese))
[10] 张顶立,李治国. 高压富水区隧道帷幕注浆止浆系统分析[J]. 岩土力学,2004,25(7):1 151–1 154.(ZHANG Dingli,LI Zhiguo. Analysis of borehole occluding system for tunnel curtain grouting in high pressure and rich water zone[J]. Rock and Soil Mechanics,2004,25(7):1 151–1 154.(in Chinese))
[11] 刘人太,李术才,张庆松,等. 一种新型动水注浆材料的试验与应用研究[J]. 岩石力学与工程学报,2011,30(7):1 454–1 459.(LIU Rentai,LI Shucai,ZHANG Qingsong,et al. Experiment and application research on a new type of dynamic water grouting material[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1 454–
1 459.(in Chinese))
[12] 李利平,李术才,张庆松,等. 一种高分子注浆材料的试验研究[J]. 岩石力学与工程学报,2010,29(增1):3 150–3 156.(LI Liping,LI Shucai,ZHANG Qingsong,et al. Experiment study of a new polymer grouting material[J]. Chinese Journal of Rock Mechanics and Engineering,2010,29(Supp.1):3 150–3 156.(in Chinese))
[13] 杨晓华,俞永华. 水泥–水玻璃双液注浆在黄土隧道施工中的应用[J]. 中国公路学报,2004,17(2):68–72.(YANG Xiaohua,YU Yonghua,Application of cement-silicate double solution grouting to loess tunnel construction[J]. China Journal of Highway and Transport,2004,17(2):68–72.(in Chinese))
[14] LOMBARDI G. 水泥灌浆浆液是稠好还是稀好?[M]// 现代灌浆技术译文集. 北京:水利电力出版社,1991:76–81.(LOMBARDI G. Should cement grout be think or thin?[M]// Collection of Translation of Modern Grouting Techniques. Beijing:Water Resources and Electric Power Press,1991:76–81.(in Chinese))
[15] 李虎军,王 琪. 水溶性聚合物改性水泥的研究II:水溶性聚合物对水泥水化过程的影响[J]. 功能高分子学报,1999,12(3):276–280.(LI Hujun,WANG Qi. Study on the cement modified by water-soluble polymers:II. Effect of water-soluble polymers on the hydration of cement[J]. Journal of Functional Polymers,1999,12(3):276–280.(in Chinese))