Improvement of empirical methods for horizontal displacement of soil-nailing and composite soil-nailing walls
LIU Bin1, YANG Min2, YANG Zhi-yin3, JIANG Xiao-guang3
(1. East China Electric Power Design Institute of China Power Engineering Consulting Group, Shanghai 200063, China; 2. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 3. Shenzhen YJY Construction Technology Co., Ltd., Shenzhen 518054, China)
Abstract：Based on the literatures of horizontal displacement records for soil-nailing and composite soil-nailing walls about 10 projects mainly located in Shenzhen and Guangzhou, the improvement of the empirical methods for horizontal displacement of soil-nailing and composite soil-nailing walls is performed. The numerical ranges of the deformation modulus of soil nails, the influence diameter of soil nails and the coefficient of null deformation are suggested. The calculated results show that the proposed method is credible in practice according to the comparison between the computational data and the test data, although the computational curves are discontinuous on interfaces of the layered soils.
刘斌, 杨敏, 杨志银, 姜晓光. 土钉墙及复合土钉墙侧移经验计算方法的改进[J]. 岩土工程学报, 2012, 34(suppl): 45-48.
LIU Bin, YANG Min, YANG Zhi-yin, JIANG Xiao-guang. Improvement of empirical methods for horizontal displacement of soil-nailing and composite soil-nailing walls. Chinese J. Geot. Eng., 2012, 34(suppl): 45-48.
[1] 李象范, 何之民, 徐水根. 流砂地层中复合土钉墙的受力及变形性状[J]. 上海地质, 1999(3): 16–27. (LI Xiang-fan, HE Zhi-min, XU Shui-gen. Deformation and mechanical behavior of compound soil-nailed retaining wall used in the ground with flow sand[J]. Shanghai Geology, 1999(3): 16–27. (in Chinese))[2] 杨志银, 张 俊, 王凯旭. 复合土钉墙技术的研究及应用[J]. 岩土工程学报, 2005, 27(2): 153–156. (YANG Zhi-yin, ZHANG Jun, WANG Kai-xu. Development of composite soil nailing walls[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(2): 153–156. (in Chinese))[3] 姜晓光, 杨志银, 刘 斌. 土钉墙支护水平位移计算的简便方法[J]. 土木工程学报, 2010, 43(8): 121–124. (JIANG Xiao-guang, YANG Zhi-yin, LIU Bin. A simple method for horizontal displacement of soil nailing walls[J]. China Civil Engineering Journal, 2010, 43(8): 121–124. (in Chinese))[4] 张明聚, 郭忠贤. 土钉支护工作性能的现场测试研究. 岩土工程学报, 2001, 23(3): 319–323. (ZHANG Ming-ju, GUO Zhong-xian. Research on behaviors of soil nailing by field test[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(3): 319–323. (in Chinese))[5] 耿 玲. “林达嘉园”深基坑土钉支护数值模拟与现场监测研究[D]. 北京: 北京科技大学, 2007. (GENG Ling. Study on numerical simulation of soil nailing support in deep foundation ditch and field monitoring of “Linda Jiayuan”[D]. Beijing: University of Science and Technology Beijing, 2007. (in Chinese))[6] 姜晓光. 复合土钉墙设计关键技术研究[D]. 中冶集团建筑研究总院, 2009. (JIANG Xiao-guang. Research of key technique of composite soil nailing wall[D]. Beijing: Central Research Institute of Building and Construction Co., Ltd. MCC, Group, 2009. (in Chinese))[7] 黄力平, 何汉金. 挡土挡水复合型土钉墙支护技术[J]. 岩土工程技术, 1991(1): 17–21. (HUANG Li-ping, HE Han-jin. Protecting technique of composite soil-nailing wall with retaining water[J]. Geotechnical Engineering Technique, 1991(1): 17–21. (in Chinese))[8] 陈晓文, 杨光华, 张君禄, 等. 广州凯华城基坑采用土钉墙支护设计实践[J]. 岩石力学与工程学报, 2004, 23(17): 3021–3029. (CHEN Xiao-wen, YANG Guang-hua, ZHANG Jun-Lu, et al. Support design practice using soil nailing wall in Guangzhou Kaihuacheng deep foundation pit[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(17): 3021–3029. (in Chinese))[9] 杨志明, 杨凯华, 戴真印. 土钉及超前桩墙复合支护技术的应用[J]. 工程勘察, 2003, 2: 34–35. (YANG Zhi-ming, YANG Kai-hua, DAI Zhen-yin. Application of composite bracing technique with soil nail and leading pile-wall[J]. Geotechnical Investigation & Surveying, 2003, 2: 34–35. (in Chinese))[10] 杨志银, 冯申铎. 新型土钉墙技术的研究与应用[R]. 北京: 冶金部建筑研究总院, 1999. (YANG Zhi-yin, FEN Shen-duo. Research and application of a new soil nail wall technology[R]. Beijing: Building Science Research and Design Academy, Ministry of Metallurgical Industry, 1999. (in Chinese))
