| 花县的地质灾害及防治对策 |
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| 引用本文： | 王应良.花县的地质灾害及防治对策[J].华南地震,1992,12(3):69-75. |
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| 作者姓名： | 王应良 |
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| 作者单位： | 花县地震办公室 广东 |
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| 摘 要： | 本区主要地质灾害包括岩溶塌陷、地裂缝、岩溶突水。这些灾害破坏地面、农田、民房和工程构筑物,影响居民和工业用水。灾害产生的内因是地下存在可溶性岩层,构造及岩溶裂隙发育无稳定隔水层,局部存在膨胀土,岩溶水与地表水沟通。近年大量开采岩溶水,迅速改变地下水动力状态对灾害的发生起了触发作用。防止过量抽取地下水、防止大量排走地表水、加强地质勘查、依场地条件确定工程建筑位置、类型并作必要的地基加固处理系防治本区地质灾害扩展的有效途径。
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| 关 键 词： | 地质灾害 类型 成因 防治 广东 |
COUNTERMEASURES ON THE PREVENTION OF GEOLOGIC HAZARDS IN HUANXIAN AREA |
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| Wang Yingliang.COUNTERMEASURES ON THE PREVENTION OF GEOLOGIC HAZARDS IN HUANXIAN AREA[J].South China Journal of Seismology,1992,12(3):69-75. |
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| Authors: | Wang Yingliang |
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| Abstract: | Geologic hazards in this area are mainly karst collapses, grounu fissuring and karst bursting with water, by which the ground, farmland, houses and engineering structures are destroyed, as a result, the inhabitants are influenced and industrial water are affected. The internal causes for the hazards are the existence of disoluble rocks in the subsurface, development of karst fissures and structures, absence of stable water -resisting layers, existence of local expansive soil, and connection of water with serface water. A large number of karst water is eatracted in last years. It rapidly changes dynamic regime of groundwater and hence trigger the harzards to occur, in order to prevent excess pumping of ground water and draining away of large amount of surface water, we should strengthen geological prospecting, place of the sites engineering projects and their types in accordence with the site conditions, and take necessary measures for consolidting and processing of foundations. This is an effective approach to prevention of geologic hazards in this ares. |
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| Keywords: | Geologic hazards Types Causes Prevention Huaxian area Guangdong province |
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