| 梯形沟埋涵洞顶部垂直土压力试验研究 |
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| 引用本文： | 李永刚,刘孝俊,周泽涛.梯形沟埋涵洞顶部垂直土压力试验研究[J].太原理工大学学报,2011,42(6):654-659. |
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| 作者姓名： | 李永刚 刘孝俊 周泽涛 |
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| 作者单位： | 太原理工大学水利科学与工程学院,太原,030024 |
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| 摘 要： | 在刚性地基和刚性涵洞条件下,进行梯形沟埋涵洞土压力试验和理论研究,得到回填土体的沉降位移场、洞顶土压力分布、土压力系数的变化规律和理论计算模型。试验和理论研究表明:涵洞回填土体顶、底的沉降位移小,最大沉降区处于涵顶填土高度的中部附近;箱涵顶部土压力为上凹形分布,圆涵顶部土压力为上凸形分布,前者土压力系数约为后者土压力系数的1.07倍。
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| 关 键 词： | 涵洞 土压力 模型试验 等沉面 |
Experimental Study on Earth Pressure on the top of Trapezoid Trench-buried Culverts |
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| LI Yong-gang,LIU Xiao-jun,ZHOU Ze-tao.Experimental Study on Earth Pressure on the top of Trapezoid Trench-buried Culverts[J].Journal of Taiyuan University of Technology,2011,42(6):654-659. |
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| Authors: | LI Yong-gang LIU Xiao-jun ZHOU Ze-tao |
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| Institution: | LI Yong-gang,LIU Xiao-jun,ZHOU Ze-tao(College of Hydraulic Science & Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | The vertical earth pressure on the top of trapezoid trench-buried culverts was analyzed experimentally and theoretically under the condition of rigid culverts and foundation.The settlement displacement field,earth pressure distribution on culverts and variation of earth pressure coefficient were revealed.Resutts show that the settlement was small at the top and the bottle of the backfill,and maximal near the middle of the backfill height.The earth pressure distribution was concave curves on the top of box c... |
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| Keywords: | culverts earth pressure model experiment the plane of equal settlement |
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