渝黔高速公路重庆段K63公里边坡处治方案研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
渝黔高速公路重庆段K 6 3处属构造剥蚀低山区。路堑边坡高 5~ 2 2m ,用喷射混凝土防护。但暴雨造成该边坡拉裂变形。通过调查工程地质勘察成果 ,研究变形的成因机制和发生过程 ,采用传递系数法、二维有限元法等边坡稳定性分析方法 ,分析该边坡的稳定性现状 ,进行了大量计算 ,提出了采用锚索框架梁 +压力灌浆 +机制砖防护 +防排水措施的综合加固处治方案。实践证明 ,该方案合理可靠
Chongqing Section (K 63 km) of Chongqing-Guizhou Expressway situates in the mountainous area with small structural denudation. The cut slope is 5~22 m tall, protected by sprayed concrete. But storm caused the slope to split and deform. Through studying the geologic engineering investigation results, reasons and processes of the deformations, and by making use of the slope stability analytic methods such as transmission coefficient method and two-dimensional finite element method, this paper analyzes the current stability situation of the slope, carries out a lot of calculations and puts forward a comprehensive strengthening scheme, i.e. frame beam with anchor stays + pressure grouting + machine-made brick protection + waterproof and drainage measures. Practice shows that this scheme is reliable and reasonable.
引文
[1] GB -50021-94,岩土工程勘察试验规范[S].
    [2] 中国岩土锚固工程协会.岩土锚固新技术[M].北京:人民交通出版社,2000.
    [3] 梁炯均.锚固与注浆技术手册[M].北京:中国电力出版社,1999.
    [4] 程良奎.岩土加固实用技术[M ].北京:地震出版社,1994.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心