2020, 12(2): 140-146. doi: 10.16670/j.cnki.cn11-5823/tu.2020.02.22
膨胀性软岩隧道结构受力计算研究
中铁第一勘察设计院集团有限公司，西安 710043 |
Study on Mechanics Calculation of Tunnel Structure in Expansive Soft Rocks
China Railway First Survey and Design Institute Group Co., Ltd., Xi′an 710043, China |
引用本文:
王建鹏. 膨胀性软岩隧道结构受力计算研究[J]. 土木建筑工程信息技术,
2020, 12(2): 140-146.
doi: 10.16670/j.cnki.cn11-5823/tu.2020.02.22
Citation:
Wang Jianpeng. Study on Mechanics Calculation of Tunnel Structure in Expansive Soft Rocks[J]. Journal of Information Technologyin Civil Engineering and Architecture,
2020, 12(2): 140-146.
doi: 10.16670/j.cnki.cn11-5823/tu.2020.02.22
摘要:以北非典型的泥灰岩病害工程为依托，研究膨胀性软岩的工程表现，寻找获得可靠隧道衬砌设计的软岩条件。通过对工程地层参数选用、原设计力学模型计算、施工中遇到的问题、变更设计、病害处理等方面的研究，得出在常规的围岩压力理论下，应将膨胀性侧向压力、地下水的动态压力、塑性变形和残余应力考虑在设计应力折减之内，采用荷载—结构计算模型计算膨胀性软岩隧道结构受力。研究结论可供治理膨胀性软岩隧道病害及同类工程勘察设计和施工借鉴。
Abstract: In view of the typical marl disease engineering in North Africa, this paper studies the engineering performance of the expansive soft rock, and looks for the reliable soft rock conditions for the tunnel lining design. Studies have been conducted on areas of selection on rock formation parameters for engineering, calculation of mechanical model for original design, problems in construction, design alteration, disease treatment, and etc., and then the conclusion is summarized as that, based on the conventional surrounding rock pressure theory, all the expansive lateral pressure, the dynamic pressure of groundwater, plastic deformation and residual stress should be considered within the stress reduction. The stress suffered by tunnel structure in expansive soft rock should be calculated by using the load-structure calculation model. The research conclusions can be references for treatment projects of tunnel diseases in expansive soft rock and other similar survey, design and construction works.
| [1] |
Brief Preliminary Design Report between Tabellout and Draa Diss, Eastern Algeria, edf Design Institute, 《SETIF-HODNA》 Water Project[R].Electricite DE France, August 2003. |
| [2] |
Transfer between Tabellout Reservoir and Draa Diss-setif-hodna-system est-lot 2.Corridor Connecting Canal-Buffer Basin: Final Geology and Geotechnical Report[R].SEA CONSULTINGSRL Company, Juillet 2011. |
| [3] | |
| [4] |
C.K.Morley.Out-of-sequence thrusts[J].Tectonics, 1988, 7(3): 539-561.doi: 10.1029/TC007i003p00539 |
| [5] | |
| [6] |
王奎华, 杨冬英, 张智卿, 等.简化平面应变土体模型的精度研究及实用性分析[J].计算力学学报, 2010, 27(3): 496-499. |
| [7] |
朱伟, 胡如军, 钟小春, 等.几种隧道盾构管片设计方法的比较[J].地下空间, 2003, 4(2): 1673-0836. |
| [8] |
项彦勇, 冯山群.地层自重应力场中桩基荷载对隧道开挖塑性区影响的一种理论预测方法[J].土木工程学报, 2012, (12): 162-169. |
| [9] |
K.太沙基著, 徐志英译.理论土力学[M].地质出版社, 北京, 1960. |
| [10] |
孙恒, 陈作模.机械原理[M].北京, 高等教育出版社, 2001, 209-230. |
| [11] |
荣耀, 许锡宾, 蔡晓鸿.基于弹性地基梁法的隧道衬砌裂缝间距和宽度的计算[J].土木建筑与环境工程, 2006, 28(5): 23-26. |
| [12] |
贺广零, 黎都春, 翟志文, 等.采空区煤柱-顶板系统失稳的力学分析[J].煤炭学报, 2007, 32(9): 12-16. |
| [13] |
孙文昊.荷载-结构模型在盾构隧道结构计算中的应用[C].中国工程院中国中铁股份有限公司. 2010中国城市轨道工程技术论坛论文集. 2010: 106-109. |
| [14] |
刘晓丽, 王思敬, 王恩志, 等.含时间效应的膨胀岩膨胀本构关系[J].水利学报, 2006, 37(2): 195-199.doi: 10.3321/j.issn:0559-9350.2006.02.011 |
| [15] |
杨庆, 焦建奎, 栾茂田.膨胀岩土侧限膨胀试验新方法与膨胀本构关系[J].岩土工程学报, 2001, 23(1): 49-52.doi: 10.3321/j.issn:1000-4548.2001.01.011 |
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