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软岩硐室稳定性的复合结构柔性反底拱控制时效分析

刘传孝, 王龙, 刘志浩, 黄东辰, 张秀丽

刘传孝, 王龙, 刘志浩, 黄东辰, 张秀丽. 软岩硐室稳定性的复合结构柔性反底拱控制时效分析[J]. 岩土工程学报, 2012, 34(8): 1464-1468.
引用本文: 刘传孝, 王龙, 刘志浩, 黄东辰, 张秀丽. 软岩硐室稳定性的复合结构柔性反底拱控制时效分析[J]. 岩土工程学报, 2012, 34(8): 1464-1468.
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LIU Chuan-xiao, WANG Long, LIU Zhi-hao, HUANG Dong-chen, ZHANG Xiu-li. Time effects of flexible inverted arch with composite structures to control stability of chamber adjoining with soft rock masses[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(8): 1464-1468.
Citation: LIU Chuan-xiao, WANG Long, LIU Zhi-hao, HUANG Dong-chen, ZHANG Xiu-li. Time effects of flexible inverted arch with composite structures to control stability of chamber adjoining with soft rock masses[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(8): 1464-1468.
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软岩硐室稳定性的复合结构柔性反底拱控制时效分析  English Version

  • 1.山东农业大学水利土木工程学院，山东 泰安 271018；2.中国科学院武汉岩土力学研究所，湖北 武汉 430071

基金项目: 国家自然科学基金项目（51004098）
详细信息
    作者简介:

    刘传孝(1970– )，男，山东郯城人，博士，教授，博士生导师，主要从事非线性动力学、计算力学、岩土力学与工程方向的研究与教学工作。

  • 中图分类号: TD353

Time effects of flexible inverted arch with composite structures to control stability of chamber adjoining with soft rock masses

  • (1. College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Taian 271018, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China)

摘要

    摘要
  • 摘要: 地下工程的围岩为软岩或因赋存深度的增加而呈现软岩特征时，其稳定性控制问题趋于突出，而对软岩硐室底臌的有效控制是决定硐室整体稳定性、保障其服务年限的关键。设计应用于软岩硐室底臌控制的复合结构柔性反底拱，探讨其作用机理，其控制底臌的时间效应包括成拱初期的负底臌效应、吸收变形能为主要特征的柔性支护阶段和后期延长服务年限为目的的刚性支护阶段，其中柔性支护作用保证了相对较长而且稳定的软岩硐室服务年限。经实践证明，试验条件下的负底臌效应历时63 d，柔性结构控制底臌的作用时间为158 d，反底拱刚性结构对底臌的控制可以延长巷道的服务年限140 d，即巷道在1 a内无需底板修复。复合结构柔性反底拱的底臌控制效果明显，但是硐室整体稳定性并非单一依赖于对底臌的控制，支护体系在边界上存在相对薄弱的环节等因素，依然可转化为软岩硐室整体破坏的主要原因。
    Abstract: It is important to determine the stability of underground projects which are driven in soft rock masses or buried in deep site. Restraining the floor heave of the chamber adjoining with soft rock masses is an effective approach to control its stability and ensure its service period. The flexible inverted arch with composite structures is designed mainly to reduce the floor heave, and its operating mechanism is also studied. The time effects of the flexible inverted arch with composite structures to control the floor heave of the chamber adjoining soft rock masses will include the initial stage with negative floor heave, flexible support stage to absorb deformation energy, and rigid support stage to prolong its service period. The flexible support effect has steadily ensured a longer service period of the chamber. The practices indicate that the time effects of negative floor heave under test conditions last a period of 63 days, the controlling period of flexible structure to the floor heave may be up to 158 days, and the service period of 140 days of the testing roadway is prolonged by the rigid structure of inverted arch to restrain the floor heave. Therefore, the testing roadway may dispense with rebuilding work in one year, particularly in the floor heave. Although the flexible inverted arch with composite structures has distinct effects to control the floor heave, the overall stability of the chamber can not simply depend on the only factor. The relatively weak boundary part of the supporting system will become the main cause of the destruction of the chamber adjoining soft rock masses.
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  • [1] 王卫军, 冯 涛. 加固两帮控制深井巷道底鼓的机理研究[J]. 岩石力学与工程学报, 2005, 24(5): 808–811. (WANG Wei-jun, FENG Tao. Study on mechanism of reinforcing sides to control floor heave of extraction opening[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(5): 808–811. (in Chinese))
    [2] 康红普, 陆士良. 巷道底鼓机理的分析[J]. 岩石力学与工程学报, 1991, 10(4): 362–373. (KANG Hong-pu, LU Shi-liang. An analysis on the mechanism of roadway floor heave[J]. Chinese Journal of Rock Mechanics and Engineering, 1991, 10(4): 362–373. (in Chinese))
    [3] 赵 权. 巷道底鼓机理及防治措施[J]. 煤炭技术, 2007, 26(8): 49–51. (ZHAO Quan. Mechanism of tunnel bottom swelling and measures of prevention and cure[J]. Coal Technology, 2007, 26(8): 49–51. (in Chinese))
    [4] 曹玉亮. 软岩隧道围岩稳定性分析与支护研究[D]. 西安:煤炭科学研究总院, 2007. (CAO Yu-liang. Analysis of surrounding rock stability of soft rock tunnel and study on its supports[D]. Xi'an: China Coal Research Institute, 2007. (in Chinese))
    [5] 黄 胜, 刘 巍, 于 驰. 浅谈巷道底鼓的防治措施[J]. 矿业工程, 2006, 4(5): 27–29. (HUANG Sheng, LIU Wei, YU Chi. Precautions against swell-up of tunnel bottom plate[J]. Mining Engineering, 2006, 4(5): 27–29. (in Chinese))
    [6] 王其胜, 李夕兵, 李地元. 深部开采流变性软岩巷道底鼓原因与防治[J]. 金属矿山, 2008(1): 47–49, 150. (WANG Qi-sheng, LI Xi-bing, LI Di-yuan. Causes and control of floor heave in rheological weak rock roadway at depth[J]. Metal Mine, 2008(1): 47–49, 150. (in Chinese))
    [7] 赵晓举. 平煤集团各矿井巷道底鼓防治技术[J]. 煤炭科技, 2008, 34(7): 48–50. (ZHAO Xiao-ju. Pingdingshan coal group: preventive and control technology against roadway floor heave in its coal mines[J]. China Coal, 2008, 34(7): 48–50. (in Chinese))
    [8] 杨新兴. 长锚杆及反底拱在维修加固软岩硐室中的应用[J]. 河北煤炭, 2002(1): 36–37. (YANG Xin-xing. Application of long-bolt and back inverted arch in maintenance and reinforcement of free stone chamber[J]. Hebei Coal, 2002(1): 36–37. (in Chinese))
    [9] 任建民. 锚注技术在处理大断面硐室底臌中的应用[J]. 煤炭技术, 2009, 28(6): 125–126. (REN Jian-min. Application of bolting and shotcreting technology to dealing with floor heave[J]. Coal Technology, 2009, 28(6): 125–126. (in Chinese))
    [10] 张美政. 复合结构柔性反底拱应用于软岩峒室稳定性控制研究[D]. 泰安: 山东农业大学, 2010. (ZHANG Mei-zheng. Study on composite structure for flexible inverted arch support to stability of tunnel adjoining with soft rock mass[D]. Taian: Shandong Agricultural University, 2010. (in Chinese))
    [11] NARAYAMAN R, PALANJING A S. Factors influencing the strength of steel fiber reinforced concrete[J]. Developments of Fiber Reinforced Cement and Concrete, 1986(2): 1–8.
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出版历程
  • 收稿日期:  2011-07-06
  • 发布日期:  2012-08-19

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