期刊论文

中文

安全与环境学报

1009-6094

2009

9

1

155-159

10.3969/j.issn.1009-6094.2009.01.043

国家自然科学基金项目（50774092） 全国优秀博士学位论文专项资金资助项目（200449）

本校为其他机构

在建立受非均布线形荷载作用的地基力学模型的基础上,应用叠加原理推导出地基表面在非均布的线形荷载作用下,预应力锚索-地梁结构中垂直于梁轴线平面内的地基中深处的应力和位移计算公式,为研究预应力锚索-地梁结构在岩体中的传力规律提供了理论基础.以湖南省常张高速公路K123+160～K123+369边坡为试验区域,通过理论分析得出,在对锚索施加预应力后,锚索预应力通过地梁传递给被加固的岩土体,其传递方式在垂直于地梁轴线的平面内是以梁轴线与该平面的交点为端点的近似椭圆的等值面形式由内向外呈逐渐衰减趋势分布的.现场试验得出,两地梁周边岩体中的压应变随深度增加由小到大增至峰值,然后逐渐衰减...

This paper is inclined to introduce our study of the force transmission law of a prestressed anchor-rope and the groundsill structure in rock mass by taking the slope of K123 ＋ 160 - K123 ＋ 369 of Changde-Zhangjiajie Expressway, Hunan, as a case of our experimental region. First of all, we have established the foundation mechanical model of non-linear unipoium load under the premise of the ground surface suffering non-linear unipoium load, which is deduced by the superposition principle, and then obtained the calculating formula for the stres...