湖北省中小型水库土石坝渗漏原因及防渗处理
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摘要
湖北省共有各类水库5 838座,二、三类水库为4 262座,其中70%以上为土石坝,普遍存在大坝渗漏问题。目前大坝防渗处理技术措施较多,如何因地制宜地选择防渗处理方案以满足除险加固工程的功能性、可实施性、经济性、环境和安全性的要求,是建设各方必须重视的问题。以湖北省某水库为例分析了大坝渗漏的类型及成因,提出了有针对性的优选方案和施工中应注意的问题,为水库的防渗加固处理提供参考和借鉴。
There are totally 5838 reservoirs in Hubei Province including 4262 second- and third- class reservoirs, 70%of which are earth-rock dam,and there exist widely leakage in them.While many seepage control techniques for dams have been developed,It has still significant to choose proper anti-seepage measures according to local conditions in the function,practicality,economy and safe requirement.The causes and types of dam leakage are analyzed by taking a reservoir in Hubei Province as an example,and the optimal measurements and issues to be attended to in construction are advanced for reference to similar reinforcing projects.
There are totally 5838 reservoirs in Hubei Province including 4262 second- and third- class reservoirs, 70%of which are earth-rock dam,and there exist widely leakage in them.While many seepage control techniques for dams have been developed,It has still significant to choose proper anti-seepage measures according to local conditions in the function,practicality,economy and safe requirement.The causes and types of dam leakage are analyzed by taking a reservoir in Hubei Province as an example,and the optimal measurements and issues to be attended to in construction are advanced for reference to similar reinforcing projects.
引文
[1]张启岳.土石坝加固技术[M].北京:水利水电出版社,2000.
[2]SL 274-2001,碾压式土石坝设计规范[S].
[3]SD 266-88,土坝坝体灌浆技术规范[S].
[4]DL/T5200-2004,水电水利工程高压喷射灌浆技术规范[S].
[5]SL 62-94,水工建筑物水泥灌浆施工技术规范[S].
[2]SL 274-2001,碾压式土石坝设计规范[S].
[3]SD 266-88,土坝坝体灌浆技术规范[S].
[4]DL/T5200-2004,水电水利工程高压喷射灌浆技术规范[S].
[5]SL 62-94,水工建筑物水泥灌浆施工技术规范[S].
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