| 山西地堑系一类特殊的剪切-挤压型地裂缝 |
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| 引用本文： | 宋彦辉,彭建兵,卢全中,李忠生. 山西地堑系一类特殊的剪切-挤压型地裂缝[J]. 力学学报, 2007, 15(4): 448-452 |
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| 作者姓名： | 宋彦辉 彭建兵 卢全中 李忠生 |
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| 作者单位： | 长安大学地质工程与测绘学院,西安710054 |
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| 基金项目： | 基金资助:国家自然科学基金重点项目(编号:40534021);国土资源大调查项目(1212010641403). |
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| 摘 要： | 阐述了山西地堑系的构造背景及现今应力场状态,对该地区发育的地裂缝特点进行了概括性描述。根据实际调查,在该地区发现了一类特殊的剪切-挤压型地裂缝——万荣县城关变电所地裂缝,该地裂缝地貌上位于山西地堑系峨嵋台地,发育特征表现为强烈的剪切、挤压变形,地面、墙体拱曲、翘起,并出现明显的水平位错现象。与该区发育的其他地裂缝有明显的不同。根据地裂缝发育的特征,并结合区域构造应力场分析,讨论了该地裂缝的力学成因机制。
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| 关 键 词： | 山西地堑系 地裂缝 峨嵋台地 成因分析 |
| 收稿时间： | 2006-11-11 |
| 修稿时间： | 2007-02-25 |
A TYPE OF SPECIAL SHEAR-CRUSH GROUND FISSURES LOCATED IN SHANXI GRABEN SYSTEM |
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| SONG Yanhui,PENG Jianbing,LU Quanzhong,LI Zhongsheng. A TYPE OF SPECIAL SHEAR-CRUSH GROUND FISSURES LOCATED IN SHANXI GRABEN SYSTEM[J]. chinese journal of theoretical and applied mechanics, 2007, 15(4): 448-452 |
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| Authors: | SONG Yanhui PENG Jianbing LU Quanzhong LI Zhongsheng |
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| Affiliation: | College of Geology Engineering and Geomatics,Chang’an University,Xi’an 710054 |
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| Abstract: | Tectonic background and modern stress field of the Shanxi garben system are formulated.The characteristics of the ground fissures developed in the area are generalized.Based on the investigation,a type of specific shear-crush ground fissures has been found.This ground fissure locates in E Mei Platform of the Shanxi garben system.It appears intensive shear and crush deformation-the ground and wall buckle and dislocate.This feature does not agree with other ground fissures developed in the area.According the features of ground fissures and region tectonic stress field,the formation mechanism of the special ground fissure has been discussed. |
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| Keywords: | Shanxi graben system Ground fissures E&rsquo mei Platform Genetic analysis |
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