| 下辽河地区砂土液化形成的震害地质问题 |
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| 引用本文： | 朱海之
,王立功
,高清武
,王登弟.下辽河地区砂土液化形成的震害地质问题[J].地震地质,1979,1(2):67. |
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| 作者姓名： | 朱海之 王立功 高清武 王登弟 |
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| 作者单位： | 辽宁省地震局 |
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| 摘 要： | 海城地震引起下辽河平原大面积砂土液化,液化震害有喷水冒砂、陷落砂坑、地滑移等等。液化区是全新世海退之地,震害严重区地表粘性土层薄,承压水头高;震害轻微区地表粘性土层厚,承压水头低。喷砂颗粒的单粒结构表明液化砂层具有松散的特点,砂颗粒的滚圆度在液化难易上不起主要作用
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| 关 键 词： | 辽河 砂土液化 喷水冒砂 喷砂 颗粒 地质问题 亚砂土 液化区 承压水头 地滑 |
THE GEOLOGICAL ASPECT OF EARTHQUAKE HAZARD CAUSED BY LIQUEFACTION OF SAND IN THE LOWER LIAOHE RIVER REGION |
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| Abstract: | The Haicheng earthquake (Feb. 4, 1975, M=7.3) has caused the extensive liquefaction of sand in the Lower Liaohe River region, which expressed itself as ejected water and sandflows, sundken lands and sandy holes on ground surface, ground drumlings, landslides and ground fissures.According to the degree of ejection and ground failure the liquefied region may be classified into three areas different in hazard, i. e. intensive( I ), moderate(Ⅱ) and weak (IE). The liquefied region in the Lower Liaohe |
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