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Volume 39 Issue 11
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Abstract
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LI Dong-liang, LIU Xin-rong, LI Jun-jiang, WU Xiang-chao, LI Wei-shu, DU Ming-ze. Stability of shallowly buried soft rock tunnel anchorage by in-situ model tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(11): 2078-2087. DOI: 10.11779/CJGE201711016
Citation: LI Dong-liang, LIU Xin-rong, LI Jun-jiang, WU Xiang-chao, LI Wei-shu, DU Ming-ze. Stability of shallowly buried soft rock tunnel anchorage by in-situ model tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(11): 2078-2087. DOI: 10.11779/CJGE201711016
shu

Stability of shallowly buried soft rock tunnel anchorage by in-situ model tests

  • 1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
    2. Chongqing Rock Foundation Research Center, Yangtze River Scientific Research Institute, Chongqing 400014, China;
    3. Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China;
    4. The Chinese Communist Party Linyi Committee Party School, Linyi 276000, China

More Information
  • Received Date: August 09, 2016
  • Published Date: November 24, 2017
    Graphical Abstract
    • Abstract
  • To study the stability (strength characteristics, deformation laws and long-term stability) of the shallowly buried soft rock (mudstone) tunnel anchorage under heavy load, based on a Changjiang bridge tunnel anchorage project under construction, the 1:10 reduced-scale models are used for field tests on the shallowly buried soft rock (mudstone) tunnel anchorage. According to the research, the shallowly buried soft rock (mudstone) tunnel anchorage still has the bearing capacity. Under the condition of design load or even several times the design load, the tunnel anchorage also has the long-term stability. The failure mode of the shallowly buried soft rock (mudstone) tunnel anchorage is as follows: the surrounding rock at the upper of the anchorage body breaks into blocks first, then the bottom of the anchorage body slides along the contact surface with the surrounding rock. The bottom boundary of the destroyed area is the contact zone of the anchorage body and the surrounding rock. The anchorage body has no damage. Besides, the spatial distribution laws of the creep deformation of surface surrounding rock and the deformation laws of the surface and deep surrounding rocks are also investigated. The research results may provide reference for the similar projects.
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    • References (17)
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    第十届全国土动力学学术会议
    18 （一号通知）
    19 主办单位：中国振动工程学会土动力学专业委员会;中国地震学会岩土工程防震减灾委员会。
    20 支持单位：中国土木工程学会土力学与岩土工程分会;中国水利学会岩土力学专业委员会;中国力学学会岩土力学专业委员会;中国地震学会地震工程委员会;中国地震学会基础设施防震减灾委员会;中国建筑学会地基基础分会;江苏省地震学会。
    21 承办单位：南京工业大学。
    22 协办单位：《岩土工程学报》;《防灾减灾工程学报》;《地震工程与工程振动》;《地震工程学报》。
    23 第十届全国土动力学学术会议将于2018年11月2日—4日在南京召开。本次会议是继1980年12月6日—12日在安徽合肥召开的“土的动力特性学术讨论会”后从事土动力学与岩土地震工程的科技人员和工程人员的又一次盛会,在汶川特大地震10周年之际的2018年召开“第十届全国土动力学学术会议”,将是一次具有历史意义的学术盛会。
    24 会议主题与内容：围绕“一带一路”战略、“建设海洋强国”战略和“西部大开发”战略中的重大工程灾害灾前预防与综合防范,本次会议重点研讨防灾减灾救灾工作实施“两个坚持、三个转变”新理念中遇到的土动力学与岩土地震工程领域的前沿科学与关键技术。
    25 具体征文专题如下：①土的动力特性与本构关系;②土与结构动力相互作用;③土动力学数值与物理模拟研究;④土动力学室内试验方法与新技术;⑤原位动力测试与表征技术;⑥砂土液化评价与防治;⑦强地震动与场地非线性效应;⑧环境振动与测试技术;⑨近海工程的特殊土动力学问题;⑩重大工程的土动力学与岩土地震工程问题;工程场地地震损失评估与灾害保险。
    26 大会秘书处联系人：庄海洋,13584050564;吴志坚,13919182444;陈炜昀,13770620150;赵凯,13951863149;王盛年,15077865785。通讯地址：南京工业大学虹桥校区实验楼400-1室（鼓楼区中山北路200号,210009）。论文提交邮箱：王盛年,myresort@126.com;赵凯,zhaokai@njtech.edu.cn。重要时间：论文全文截止2018年4月30日,修改稿截止2018年5月30日,论文录用通知2018年6月30日。
    27 会议论文征集：会议论文应为未经正式发表的最新成果,学术委员会将组织专家对提交论文进行审查,推荐优秀论文在《岩土工程学报》专刊发表,其余论文将在 《防灾减灾工程学报》、《地震工程与工程振动》和《地震工程学报》增刊发表。
    28 （大会组委会 供稿）
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