运城盆地鸣条岗地裂缝展布特征与成因分析

doi:10.12196/j.issn.1000-3274.2023.04.004

地震 ›› 2023, Vol. 43 ›› Issue (4): 50-66.doi: 10.12196/j.issn.1000-3274.2023.04.004

运城盆地鸣条岗地裂缝展布特征与成因分析

郭春杉^1,2, 李文巧², 徐岳仁², 闫小兵³

1.中煤科工西安研究院(集团)有限公司, 陕西西安 710077;
2.中国地震局地震预测研究所, 地震预测重点实验室, 北京 100036;
3.山西省地震局, 山西太原 030021

收稿日期:2022-04-02 修回日期:2023-07-26 出版日期:2023-10-31 发布日期:2024-01-03
通讯作者: 李文巧, 高级工程师。 E-mail: lwq3278@163.com
作者简介:郭春杉(1993-), 男, 河北昌黎人, 工程师, 主要从事活动构造探测研究。
基金资助:
中国地震局地震预测研究所基本科研业务费专项(2020IEF0603, CEAIEF20230403, 2017IES010101); 国家重点研发计划项目(2023YFC3012001-2); 地震动力学国家重点实验室开放基金课题(LED2023B
10); 山西省应用基础研究计划(201901D111463); 山西太原大陆裂谷动力学野外站计划(NORSTY20
-05)

Distribution Characteristics and Genetic Analysis of Mingtiaogang Fractures in Yuncheng Basin

GUO Chun-shan^1,2, LI Wen-qiao², XU Yue-ren², YAN Xiao-bing³

1. Xi'an Research Institute CO., Ltd. of China Coal Technology & Engineering Group, Xi'an 710077, China;
2. Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China;
3. Shanxi Earthquake Agency, Taiyuan 030021, China

Received:2022-04-02 Revised:2023-07-26 Online:2023-10-31 Published:2024-01-03

摘要/Abstract

摘要： 鸣条岗地裂缝位于运城盆地东北部的鸣条岗地垒东南侧, 造成沿线基础设施开裂变形, 包括房屋墙体开裂、道路开裂、农田毁坏等, 给沿线农业生产和人民生活造成了严重影响。本文通过大量的野外地质调查、地表测绘和资料收集, 获得了地裂缝空间展布及位错数据, 该地裂缝延伸超过15 km, 走向58°, 最大深度2.5 m, 最大宽度5 m, 垂直滑动速率6.25～8 mm/a。判定鸣条岗地裂缝属于构造与非构造综合结果, 其中超采地下水引起地面沉降是其主要诱因。由于断层两侧沉积厚度不同, 地下水采集导致沉降差异, 所以鸣条岗南缘断裂对地裂缝展布起到控制作用, 而降雨及黄土湿陷性对地裂缝的形成具有扩展作用。

关键词: 运城盆地, 鸣条岗地裂缝, 基本特征, 成因模式

Abstract: The Mingtiaogang fracture is located on the southeast side of the Mingtiaogang land barrier in the northeastern part of the Yuncheng Basin, causing the cracking and deformation of infrastructure along the route, including the cracking of house walls, road cracking, farmland destruction, etc., which has caused a serious impact on agricultural production and people's life along the route. Through a large number of field geological surveys, surface mapping and data collection, this paper obtains the spatial distribution and dislocation data of cracks in the ground. The cracks in the ground extend more than 15 km, striking 58°, with a maximum depth of 2.5 m, a maximum width of 5 m, and a vertical sliding rate of 6.25～8 mm/a. It is determined that the cracks in Mingtiaogang belong to the comprehensive cause of tectonic and non-tectural movements. The ground subsidence caused by super-exploitation of groundwater is its fundamental cause. Due to the different sedimentary thicknesses on both sides of the fault and the settlement difference caused by groundwater collection, the fault of the southern edge of the Mingtiaogang controlles the fracture distribution , while rainfall and loess wet subsidence have a tendency to expand on the fracture formation.

Key words: Yuncheng Basin, Mingtiaogang fracture, Basic characteristics, Genetic model

中图分类号:

P315.7

郭春杉, 李文巧, 徐岳仁, 闫小兵. 运城盆地鸣条岗地裂缝展布特征与成因分析[J]. 地震, 2023, 43(4): 50-66.

GUO Chun-shan, LI Wen-qiao, XU Yue-ren, YAN Xiao-bing. Distribution Characteristics and Genetic Analysis of Mingtiaogang Fractures in Yuncheng Basin[J]. EARTHQUAKE, 2023, 43(4): 50-66.

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运城盆地鸣条岗地裂缝展布特征与成因分析

Distribution Characteristics and Genetic Analysis of Mingtiaogang Fractures in Yuncheng Basin

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