|
|
|
| Research on the Grouting and Blocking Water Technology in the Water Rich Broad Patulous Cranny on Taihang Mountain Tunnel |
| ZHANG Min-qing1，ZHANG Liang2，HE Zhi-jun1，PENG Feng2，ZHANG Xiao-hua3 |
| 1.Project Management Center of China Railway Corporation, Beijing 100844, China; 2.Zhongtie Railway Soil Engineering Co. Ltd, Beijing 100055, China; 3.China Railway Eighteen Bureau Group Co. Ltd, Tianjin 300222, China |
|
|
|
Abstract Abstract：Research purposes：In the construction of the Taihang Mountain tunnel, the water rich and wide tension fissure zone is encountered, which the left line length is 218 m, the right line length is 200 m, single hole maximum gushing water pressure is 230 m3/h, 0.8 MPa prediction, surrounding rock is grade Ⅲ quartz sandstone. Construction has taken full face curtain grouting, work with water and peripheral grouting method.
Research conclusions：(1) The three methods can meet the requirements of excavation, construction progress are 25 m/month, 20 m/month, 39 m/month, peripheral grouting treatment of the formation has more advantages; (2) Construction with water must satisfy the advanced hole drilling single hole water is less than 40 m3/h, the total water amount is less than 300 m3/h, broken crack length is less than 3 m, otherwise, the construction safety and schedule cannot be guaranteed; (3) Compared to the full face curtain grouting, grouting hole of the surrounding grouting reduces 59%, grouting time shortens 56%, schedule 56%; (4) The whole section curtain grouting by using 2 L/（min·m） as the inspection hole water standard is appropriate, and can relax, peripheral grouting can adopt 5 L/（min·m） standard; (5) The research findings can be similar to water rich broad patulous cranny grouting water shutoff in construction application.
|
|
|
|
|
|
|
［1］张民庆,彭峰. 地下工程注浆技术［M］. 北京:地质出版社,2008.
Zhang Minqing,Peng Feng. Grouting Technology of Underground Works［M］. Beijing:Geological Publishing House,2008.
［2］张民庆,张梅. 高压富水断层“外堵内固注浆法”设计新理念与工程实践［J］.中国工程科学,2009(12):26-34.
Zhang Minqing,Zhang Mei.Design New Ideas and Engineering Practice of High-pressure Water-Rich Fault "Outside Block and Inside Strenghthen Grouting"［J］. Engineering Sciences,2009(12):26-34.
［3］张民庆,黄鸿健. 齐岳山隧道高压裂隙水注浆堵水技术［J］.铁道工程学报,2010(1):68-72/103.
Zhang Minqing,Huang Hongjian. Technology for Blocking Water by Grouting for High-pressure Cranny Water of Qiyueshan Tunnel［J］. Journal of Railway Engineering Society,2010(1):68-72/103.
［4］张梅,张民庆,孙国庆. 宜万铁路野三关隧道高压富水充填溶腔溃口处理技术［J］. 铁道工程学报,2010(3):81-86.
Zhang Mei,Zhang Minqing,Sun Guoqing,Technology for Treating Burst Port of Filling Solution Cavity with High-pressure and Rich Water of Yesanguan Tunnel on Yichang-Wanzhou Railway［J］. Journal of Railway Engineering Society,2010(3):81-86.
［5］张民庆,孙国庆. 隧道工程突泥突水灾害处治技术［J］. 现代隧道技术,2011(6):117-123.
Zhang Minqing,Sun Guoqing. Treatment Technology for Mud and Water Bursting in Tunneling［J］. Modern Tunnelling Technology,2011(6):117-123.
|
|
|
|
