| 黄河大柳树坝址岩体破坏机制动力模拟试验分析 |
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| 引用本文： | 王勇智,戚炜,门玉明,彭建兵.黄河大柳树坝址岩体破坏机制动力模拟试验分析[J].地球科学与环境学报,2004,26(2):54-58. |
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| 作者姓名： | 王勇智 戚炜 门玉明 彭建兵 |
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| 作者单位： | 长安大学,地质工程与测绘工程学院,陕西,西安,710054 |
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| 基金项目： | 甘肃省科委项目(G01 0016) |
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| 摘 要： | 黄河黑山峡大柳树坝址区存在大范围的岩体松动破坏现象，其主要特征是岩体应力释放，结构面张开，密度显著下降。为进一步研究岩体松动的成因机制，在详细调查区域地质背景条件及区域地震动力作用基础之上，提出了地震动力作用与岩体松动现象的内在联系。通过动力模拟试验进一步证明大柳树坝址区存在的大深度、大范围岩体松动与历史上该地区发生的强烈地震具有密切关系。因此在目前的工程地质条件下，一旦发生较大强度的地震活动，坝址区所遭受的破坏程度会更大，对拟建的水利工程设施将产生严重威胁。
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| 关 键 词： | 岩体松动 地震动力作用 动力模拟试验 黄河 大柳树坝址 破坏机制 |
| 文章编号： | 1672-6561(2004)02-0054-05 |
| 修稿时间： | 2003年5月30日 |
Dynamic simulation test analysis on destructive mechanism of rock mass at Daliushu dam site of Huanghe River |
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| WANG Yong-zhi,QI Wei,MEN Yu-ming,PENG Jian-bing.Dynamic simulation test analysis on destructive mechanism of rock mass at Daliushu dam site of Huanghe River[J].Journal of Earth Sciences and Environment,2004,26(2):54-58. |
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| Authors: | WANG Yong-zhi QI Wei MEN Yu-ming PENG Jian-bing |
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| Abstract: | There is a large scale of dynam-relaxed rock mass lies in DaLiushu dam site of Huanghe River. Geostatic stress released?structural planes opened and density reduced are the main characteristics of dynam-relaxed rock mass. In order to study the destructive mechanism of the rock mass, geological background conditions and earthquake dynamic effects of the region round Daliushu dam site are investigated. The internal relations between earthquake dynamic effects and dynam-relaxed rock mass are confirmed. A further research to the conclusion is given by the dynamic simulation test. Consequently once a more serious earthquake happened at pesent engineering geological conditions, the rock mass of dam site will be further destroyed. That would be threaten to the new water conservancy at DaLiushu dam site of Huanghe River. |
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| Keywords: | Daliushu dynam-relaxed rock mass earthquake dynamic effect dynamic simulation test |
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