| 交通和施工超载对软土基坑地下连续墙槽壁整体稳定的影响 |
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| 引用本文： | 徐永刚,季昌,许恺,孙玉永.交通和施工超载对软土基坑地下连续墙槽壁整体稳定的影响[J].华东交通大学学报,2015(3):1-5. |
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| 作者姓名： | 徐永刚 季昌 许恺 孙玉永 |
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| 作者单位： | 同济大学道路与交通工程教育部重点实验室,上海,201804 |
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| 摘 要： | 依托宁波地区某主干道周边基坑地下连续墙施工工点,通过现场取样测试土体动三轴下强度指标;采用三维有限元数值模拟判别交通和施工超载作用下槽壁整体失稳模式;并以槽壁外侧土体达到剪切塑性极限为临界条件,采用极限平衡法,推导单一土层内一字型地下连续墙槽壁整体失稳的判定公式。研究结果表明:地下连续墙槽壁呈现类似四棱锥形整体失稳形态;护壁泥浆出现补充不及时或漏浆时,槽壁将发生整体失稳破坏。
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| 关 键 词： | 软土基坑 地下连续墙 交通和施工超载 极限平衡 整体失稳 |
Influence of Overload Transportation and Construction on Overall Stability of Slurry Trench of Underground Diaphragm Wall in Soft Soil Foundation Pit |
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| Xu Yonggang
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Ji Chang
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Xu Kai
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Sun Yunyong.Influence of Overload Transportation and Construction on Overall Stability of Slurry Trench of Underground Diaphragm Wall in Soft Soil Foundation Pit[J].Journal of East China Jiaotong University,2015(3):1-5. |
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| Authors: | Xu Yonggang Ji Chang Xu Kai Sun Yunyong |
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| Institution: | Xu Yonggang;Ji Chang;Xu Kai;Sun Yunyong;Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University; |
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| Abstract: | |
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| Keywords: | soft soil foundation pit underground diaphragm wall overload transportation and construction ulti-mate equilibrium overall instability |
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