三维可视化地质模型在软基评价中的应用

发布时间：2018-05-13 15:14

本文选题：三维可视化 + 地质模型　；参考：《地下空间与工程学报》2017年S2期

【摘要】：以孟加拉恒河主坝的标贯试验数据为基础,采用三维可视化的地质建模手段,对软基建坝可能出现的砂土液化工程地质问题进行空间分析和对比.结果表明:(1)坝区左岸的液化深度较右岸浅。(2)根据国内标贯法,闸区建基面均会液化,厂区建基面部分会液化。(3)根据国外简化seed法,闸区建基面右岸部分会液化,厂区建基面不会液化。(4)国内标贯法比国外简化seed法的液化临界深度深1~3 m,建议液化处理深度在高程-24 m。(5)对软基承载力的空间分布进行分析,结果表明厂区地基不满足承载力要求。本文研究成果为建基面的选择和地基处理提供依据。
[Abstract]:Based on the test data of the main dam in Ganges RIver, Bengal, a three-dimensional visualization geological modeling method is used to analyze and compare the possible geological problems of sand liquefaction that may occur in the construction of the soft foundation dam. The results show that (1) the liquefaction depth of the left bank of the dam area is lighter than that on the right bank. (2) the foundation surface of the sluice area will be liquefied according to the domestic standard method. The foundation surface part will be liquefied. (3) according to the simplified foreign seed method, the right bank part of the construction base will be liquefied and the construction base of the plant will not be liquefied. (4) the critical depth 1~3 m of the liquefaction critical depth of the domestic standard penetration method is compared with the simplified seed method, and it is suggested that the liquefaction treatment depth is analyzed in the spatial distribution of the bearing capacity of the soft foundation at the elevation -24 M. (5), and the result shows the factory area. The foundation does not meet the requirements of bearing capacity. The research results in this paper provide basis for selection of foundation and foundation treatment.

【作者单位】：中国电建集团成都勘测设计研究院有限公司;
【分类号】：TV223

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