| 岩溶区地铁隧道相似模拟试验研究 |
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| 引用本文： | 杨秀竹,雷金山,阳军生,苏伟.岩溶区地铁隧道相似模拟试验研究[J].铁道科学与工程学报,2009,6(4). |
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| 作者姓名： | 杨秀竹 雷金山 阳军生 苏伟 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 湖南省自然科学基金资助项目(07JJ3104); 广州市地下铁道总公司科技计划项目(09A003) |
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| 摘 要： | 采用室内相似模型试验方法对广州地铁沿线岩溶地质进行了试验模拟,研究不同位置、不同大小的溶洞和土洞对隧道衬砌结构特定点应变和衬砌结构稳定性及隧道周围土压力三者产生的影响.研究结果表明:衬砌结构正下方的岩洞会减小衬砌周围的土压力,也会减小衬砌结构上各特定点的应变;衬砌结构右侧的土洞会大大减小衬砌结构的强度.
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| 关 键 词： | 岩溶 土洞 地铁隧道 衬砌结构 模型试验 |
Model test on subway tunnel in karst regions |
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| YANG Xiu-zhu
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LEI Jin-shan
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YANG Jun-sheng
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SU Wei.Model test on subway tunnel in karst regions[J].Journal of Railway Science and Engineering,2009,6(4). |
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| Authors: | YANG Xiu-zhu LEI Jin-shan YANG Jun-sheng SU Wei |
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| Affiliation: | YANG Xiu-zhu,LEI Jin-shan,YANG Jun-sheng,SU Wei (School of Civil , Architectural Engineering,Central South University,Changsha 410075,China) |
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| Abstract: | The karst regions along the line of Guangzhou subway were simulated by the indoor model test.The influences of karst caves and soil caves which in different places and different sizes on the strain and the stability of the lining and the soil pressure around the tunnel were studied.The results show that the karst cave below the tunnel will decrease the soil pressure around the tunnel,and also decrease the strain on the lining.The soil cave that on the right of the tunnel will consumedly decrease the stabili... |
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| Keywords: | karst soil caves subway tunnel lining model test |
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