摘要
河北平原区地裂缝的广泛出现对地面建筑、地下管线工程、水利设施和农田道路造成一定程度的危害。到2000 年底河北平原区发现构造地裂缝212处、482条,累计全长176．2 km,河北平原区地裂缝总体发展有由南向北、由西向 东推移的变化规律;河北平原区构造地裂缝方向性强,可以分为SN、NNE、NE、EW和NW五组。通过河北平原区域 构造研究,应用分形模型对河北平原区地裂缝进行量化分类、确认,发现河北平原区地裂缝连通性差,为区域微破裂为 主,断层蠕滑型地裂缝为辅的分类格局,另外断裂活动与地裂缝发展具有同向性,可以认为两者有共同的构造基础。
By the end of 2000, there were 212 sites, 482 strips with a total length of 176. 2km of the tectonic ground fissures in Hebei plain. The developing variational law of the ground fissures was from south to north, from west to east. The up-growth direction of the tectonic ground fissures was well, and its direction could be divided into SN, NNE, NE, EW and NW. Through region tectonic study and fractal dimension application, the ground fissures could be quantitatively classified. We found that the connection of the ground fissures was poor in Hebei plain and the region feeble fracture in dominance and the faultage squirm in inferior.
出处
《南水北调与水利科技》
CAS
CSCD
2005年第6期38-42,共5页
South-to-North Water Transfers and Water Science & Technology
基金
国家自然科学基金项目"河北省地裂缝的形成机制及其危害的研究"(49272158)
关键词
河北平原
地裂缝
成因机制
Hebei plain
the ground fissure
fractal
