乔建伟,彭建兵,郑建国,等.2020.中国地裂缝发育规律与运动特征研究[J].工程地质学报,28(5):1016-1027.doi: 10.13544/j.cnki.jeg.2020-266.
    引用本文: 乔建伟,彭建兵,郑建国,等.2020.中国地裂缝发育规律与运动特征研究[J].工程地质学报,28(5):1016-1027.doi: 10.13544/j.cnki.jeg.2020-266.
    Qiao Jianwei, Peng Jianbing, Zheng Jianguo, et al. 2020. Development rules and movement characteristics of earth fissures in China[J] . Journal of Engineering Geology, 28(5) : 1016-1027. doi: 10.13544/j.cnki.jeg.2020-266.
    Citation: Qiao Jianwei, Peng Jianbing, Zheng Jianguo, et al. 2020. Development rules and movement characteristics of earth fissures in China[J] . Journal of Engineering Geology, 28(5) : 1016-1027. doi: 10.13544/j.cnki.jeg.2020-266.

    中国地裂缝发育规律与运动特征研究

    DEVELOPMENT RULES AND MOVEMENT CHARACTERISTICS OF EARTH FISSURES IN CHINA

    • 摘要: 地裂缝是中国主要地质灾害之一,至2015年已在全国22个省区1500余处发现地裂缝超过5002条,这些地裂缝给沿线地区造成了大量的经济损失。本文基于一系列的地质研究方法包括野外调查、地质绘图、地质勘探等,总结了中国地裂缝的空间分布,揭示了中国地裂缝的发育规律,并概化了中国地裂缝的运动特征。结果表明:中国地裂缝主要分布在大华北地区,尤以汾渭盆地、河北平原和长江三角洲最为严重,其中大于1 km的巨型地裂缝主要分布在汾渭盆地和河北平原。地裂缝分布表现出沿断裂带集中、顺地貌变异带展布、与地面沉降伴生、在黄土湿陷区散布、大中城市群发的规律。地裂缝运动特征可划分为拉张型、拉张-剪切型、剪切-拉张型和剪切型4种类型。

       

      Abstract: Earth fissure is one of main geological hazards in China. By 2015, 5002 earth fissures were discovered in more than 1, 500 localities across 22 provinces. These earth fissures caused huge economic loss. Based on a series of geological investigations including in surveying, mapping, trenching, drilling and monitoring, the spatial distribution and development rules of the earth fissures are summarized, and the movement characteristic of the earth fissures are revealed. The results show that the earth fissures mainly distribute in North China and South China, especially in the Fenwei Basin, Hebei Plain and Yangtze River Delta. The giant earth fissures, longer than 1 km, mainly distribute in the Fenwei Basin and Hebei Plain. These earth fissures exhibit the following five regular patterns: clustering along fault zones, distributing along geomorphic boundaries, appearing on the edge of subsidence areas, dispersing in loess collapsible area, and centralizing in larger and medium cities. The movement characteristics of the earth fissures can be divided into four types: tension type, tension-shear type, shear-tension type and shear type.

       

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