The bending mechanism of Anping ground fissure in the Hebei Plain, North China
The bending mechanism of Anping ground fissure in the Hebei Plain, North China
复制标题
河北平原安平地裂缝弯曲机制
DOI：
10.1007/s12665-015-4670-6
复制
发表时间：
2015-07
影响因子：
2.8
通讯作者：
Wang, Liyang
中科院分区：
文献类型：
--
作者：
Xu, Jishan;Meng, Lingchao;An, Haibo;Wang, Liyang
安平地裂缝是华北平原一种典型而独特的地裂缝。本研究是在安平地区进行的，采用了测绘、探槽、钻探等地质手段。采用定性与定量相结合的方法，对地质构造与灾害进行了分析。主要结论如下：（1）安平地裂缝是区域构造应力场的局部表现，基本上具有褶皱定向性、隐蔽性和间歇性。(2)在深饶断裂的控制下，与水有关的人类活动使安平地裂缝暴露、扩大，并在中小地震的作用下破裂。(3)成形过程遵循弯曲-开裂规律。来自地下深处的上举力使整个上覆岩层弯曲。地表以下的切向应力抵消了土体的水平应力，甚至突破土体的抗拉强度而诱发裂缝。由于破裂力与抬升力成正比，而与地层深度成反比，因此裂缝呈周期性波动。
The Anping fissure is one typical and particular ground fissure in the North China Plain. This study was carried out in Anping area with geological means, such as surveying, mapping, trenching and drilling. The geological structure and disasters were analyzed by both qualitative and quantitative methods. The main conclusions are as follows: (1) Anping ground fissure is the local manifestation of regional tectonic stress field and is basically folding directional, hidden and intermittent. (2) Under the control of Shen-rao fault, Anping ground fissure was exposed and expanded by water-related human activities, and then was cracked by small- and medium-sized earthquakes. (3) The forming process followed the bending-cracking rules. The uplifting force from deep in the earth bent the entire overlying strata. The tangential stress below the ground surface counterbalanced the horizontal stress of soils, even breaking through their tensile strength and inducing cracks. The fissure was periodic and wavery, because the cracking force was proportional to the uplifting force but inversely proportional to the stratigraphic depth.
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DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
Peng Jianbing
通讯作者：
Peng Jianbing
影响因子：
3
作者：
I. Sarkar
通讯作者：
I. Sarkar
影响因子：
3
作者：
T. H. Rogers
通讯作者：
T. H. Rogers
影响因子：
4.9
作者：
H. S. Pareek
通讯作者：
H. S. Pareek
影响因子：
2.3
作者：
Eleni E. Kalogirou;T. Tsapanos;V. Karakostas;V. Marinos;A. Chatzipetros
通讯作者：
Eleni E. Kalogirou;T. Tsapanos;V. Karakostas;V. Marinos;A. Chatzipetros