| 西安地裂成因力学问题初探 |
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| 引用本文： | 耿大玉.西安地裂成因力学问题初探[J].内陆地震,1991,5(4):305-316. |
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| 作者姓名： | 耿大玉 |
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| 作者单位： | 陕西省地震局 西安 |
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| 摘 要： | 给出了西安地裂的构造模型,并用断裂力学原理分析了地裂的形成与扩展过程,准定量地比较了抽取地下水所引起的地面不均匀沉降以及构造运动所产生的地裂位移在地裂总位移中所占的比例。提出了构造对地裂发育不但有静态控制作用而且有动态控制作用。认为西安地裂是构造地裂,而西安地裂的致灾作用主要是由过量抽取地下承压水所引起的。
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| 关 键 词： | 西安 地裂 成因 构造模型 力学分析 |
PRELIMINARY STUDY ON THE MECHANICAL BEHAVIOR OF GROUND FISSURE IN XIAN AREA |
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| Geng Dayu.PRELIMINARY STUDY ON THE MECHANICAL BEHAVIOR OF GROUND FISSURE IN XIAN AREA[J].Inland Earthquake,1991,5(4):305-316. |
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| Authors: | Geng Dayu |
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| Abstract: | The structure model of ground fissure in Xian was described in this paper to analyse the formation and developing process of ground fissure by mechanical principle. The inhomogeneous subsidence of ground surface caused by pumping and also the crack displacement caused by tectonic movement were analysed and compared quasi - quantitatively. It is pointed out that the structure has some controlling function on ground fissure not only in static state but also in dynamic state. It is suggested that the ground fissure in Xian belongs to structure fissure and the disasters of ground fissure in Xian were mainly due to the overpumping of pressure water. |
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| Keywords: | Xian area Ground fissure generation Structure model Mechanical analysis |
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