Application of GPR in evaluation of stability on rocks surrounding hand-dug piles

摘要：

GPR is used to detect rock surrounding the hand-dug pile foundations of a bridge for the highway surrounding Fuzhou, capital of Fujian Province, so as to evaluate the rock the stabilities of the rocks on the outer side of the file foundations and at the base of the file foundations and thickness of overburden over the base rocks. In this paper, some parameters are selected for detection, such as antenna of center frequency 100 MHz, data acquisition time window of 500ns, offset distance of 1 m, which can meet the effective detection range (depth) of 20 m or more. Annular cross-section method is used at the bottom of Piles, and vertical cross-section method is used on the side of piles. The results show that GPR records can provide a number of clear and accurate information such as the rock cliff boundaries of pile lateral wall, the internal structure at the bottom of pile and pile lateral wall.

关键词： GPR hand-dug pile pile bottom piles side rock stability

作者: Minan Tang Shikun Deng Xiaohong Hao Baoling Sun Jishun Pan Guangxiang Yuan Yu Wang

作者单位: North China University of Water Conservancy And Electric Power, Zhengzhou 450011,China China University of Geosciences, Wuhan 430074, China North China University of Water Conservancy And Electric Power, Zhengzhou 450011, China Zhengzhou Institute of Industry and Trade, Zhengzhou 450007, China North China University of Water Conservancy And Electric Power, Zhengzhou 45001I, China Chongqing Jiaotong University, Chongqing 400074, China

会议类型: 国际会议

会议名称: The 4th International Conference on Environmental and Engineering Geophysics(第四届环境与工程地球物理国际会议 ICEEG2010)

会议地点: 成都

会议语种:英文

页码: 669-673

在线出版日期: 2010-06-14（万方平台首次上网日期，不代表论文的发表时间）