| 临汾盆地北张地裂缝发育特征与成因分析 |
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| 引用本文： | 翟栋梁,刘川,乔建伟,赵俊彦.临汾盆地北张地裂缝发育特征与成因分析[J].西北地震学报,2021,43(6):1326-1333. |
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| 作者姓名： | 翟栋梁 刘川 乔建伟 赵俊彦 |
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| 作者单位： | 四川志德岩土工程有限责任公司, 四川 成都 610041;机械工业勘察设计研究院有限公司, 陕西 西安 710043;长安大学 地质工程系, 陕西 西安 710054 |
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| 基金项目： | 中国地调局项目（121201001000150122，DD20160235）；国家自然科学基金青年项目（41202188） |
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| 摘 要： | 临汾盆地位于山西地堑系的南部，地裂缝灾害频发且成因复杂多样；特别是20世纪90年代以后出现在侯马凹陷盆地的地裂缝，发育规模大，灾害严重，给当地居民造成了严重的经济损失。以2007年出现在侯马凹陷盆地区的北张地裂缝为例，通过详细的地面调查和地表测绘查了地裂缝的平面展布特征，利用槽探揭示地裂缝的剖面结构特征。根据物探、钻探和InSAR监测结果，分析构造断裂和超采地下水与地裂缝的关系，并得出北张地裂缝的成因机理，并据此提出地裂缝的防治措施。
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| 关 键 词： | 临汾盆地 北张地裂缝 发育特征 成因机理 防治措施 |
| 收稿时间： | 2018/3/10 0:00:00 |
Development characteristics and formation mechanism of Beizhang earth fissure in Linfen basin |
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| ZHAI Dongliang,LIU Chuan,QIAO Jianwei,ZHAO Junyan.Development characteristics and formation mechanism of Beizhang earth fissure in Linfen basin[J].Northwestern Seismological Journal,2021,43(6):1326-1333. |
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| Authors: | ZHAI Dongliang LIU Chuan QIAO Jianwei ZHAO Junyan |
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| Institution: | Sichuan Zhide Geotechnical Engineering Co., Ltd., Chengdu 610041, Sichuan, China;China Jikan Research Institute of Engineering Investigations and Design Co., Ltd., Xi''an 710043, Shaanxi, China; Department of Geological Engineering, Chang''an University, Xi''an 710054, Shaanxi, China |
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| Abstract: | Ground fissure disasters occur frequently in Linfen basin, which is located in southern Shanxi Graben System. The earth fissures formed in Houma depression, with large scale and severe disasters, have caused serious economic losses to local residents since 1990s. A case study of Beizhang earth fissures developed in Houma depression since 2007 was discussed in this paper. Through detailed surface investigation and mapping, the plane distribution characteristics of Beizhang earth fissures were found out. Furthermore, a trench was excavated which revealed the cross-section structure features of the earth fissures. According to the results of geophysical exploration, drilling, and InSAR, this paper analyzed the relationship among active fault, over-withdraw groundwater, and earth fissures. Finally, the formation mechanism of Beizhang earth fissures was obtained, and then some prevention measures were proposed to mitigate the hazards of Beizhang earth fissures. |
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| Keywords: | Linfen basin Beizhang earth fissure development characteristic formation mechanism prevention measures |
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