山区地震裂缝的特性及对输电线路的影响分析
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摘要
四川属多山区,又是地震高发的地区,近些年发生了包括汶川8.0级地震、芦山7.0级地震及九寨沟7.0级地震等数次7级以上大地震,地震引发了大量的地质灾害,对灾区造成了的巨大的破坏。地震所形成的地裂缝,是地震引发次生地质灾害的一种,对地震灾区的建筑物特别是对山区输电线路影响较大。本文根据近些年四川地震灾区典型地段地震地裂缝统计,分析了地震地裂缝类型、分布特征、性质及对输电线路的影响,并对工程处理措施进行了探讨。
Sichuan is a mountainous area, where earthquakes are common, including the Wenchuan 8.0 earthquake,Lushan 7.0 earthquake and Jiuzhaigou 7.0 earthquake.The earthquake caused a lot of geological hazards, and earthquake caused great damage to disaster areas. The ground fissures formed by earthquakes are a kind of secondary geological disasters. In this paper, according to the earthquake-stricken area in sichuan in recent years the typical section of earthquake ground fissures, analyzes the earthquake fissure types, distribution characteristics, nature and influence on transmission lines, and the engineering treatment measures.
Sichuan is a mountainous area, where earthquakes are common, including the Wenchuan 8.0 earthquake,Lushan 7.0 earthquake and Jiuzhaigou 7.0 earthquake.The earthquake caused a lot of geological hazards, and earthquake caused great damage to disaster areas. The ground fissures formed by earthquakes are a kind of secondary geological disasters. In this paper, according to the earthquake-stricken area in sichuan in recent years the typical section of earthquake ground fissures, analyzes the earthquake fissure types, distribution characteristics, nature and influence on transmission lines, and the engineering treatment measures.
引文
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[3]GB 50548-2010,330~750 kV架空输电线路勘测规范[S].
[4]陈先勇.浅析地震滑坡、崩塌及地裂缝性质特征和塔基场地选择原则[J].四川地质学报,2010,30(S1):55-60.
[5]冯文凯,黄润秋,许强.地震波效应与山体斜坡震裂机理深入分析[J].西北地震学报,2011,33(1):20-25.
[6]韩金良,等,5·12汶川8级地震次生地质灾害的基本特征及其形成机制浅析[J].地学前缘,2009,16(3):306-326.
[7]李秀珍,等.芦山地震诱发次生地质灾害的分布规律和类型、特征及演化趋势分析[J].工程地质学报,2014,22(2):272-279.
[2]袁进科,裴向军.汶川地震震裂山体裂缝变形特征与动力机制研究[J].防灾减灾工程学报,2015,35(6):848-854.
[3]GB 50548-2010,330~750 kV架空输电线路勘测规范[S].
[4]陈先勇.浅析地震滑坡、崩塌及地裂缝性质特征和塔基场地选择原则[J].四川地质学报,2010,30(S1):55-60.
[5]冯文凯,黄润秋,许强.地震波效应与山体斜坡震裂机理深入分析[J].西北地震学报,2011,33(1):20-25.
[6]韩金良,等,5·12汶川8级地震次生地质灾害的基本特征及其形成机制浅析[J].地学前缘,2009,16(3):306-326.
[7]李秀珍,等.芦山地震诱发次生地质灾害的分布规律和类型、特征及演化趋势分析[J].工程地质学报,2014,22(2):272-279.