Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation protection method on karst underground river in low-lying area around reservoir
The invention discloses a method for protecting a foundation on a karst underground river in a low-lying area around a reservoir, and aims to solve the engineering geological problems of karst collapse, uneven settlement of the foundation and floating force of the foundation of a building due to overall lifting of the underground water level of the lower part of the foundation of the building caused by rising of the underground water level of the karst underground river after water storage of the reservoir. A pressure-reducing drainage well is arranged at a karst underground river on the lower portion of a building foundation, and underground water of a karst underground river system overflows in a self-flowing mode and then is drained through an earth surface open channel, so that the pressure of a karst confined water head in a field area can be reduced, the uplift force of the karst confined water head on a clay layer on the top of the karst underground river is reduced, and the situation that a foundation is damaged due to inrush is avoided; when the reservoir water level drops suddenly, the underground water level in the karst underground river system drops suddenly, at the moment, part of the karst cave on the lower portion of the foundation is in a vacuum state, the engineering geology problems of ground karst collapse and uneven settlement of the foundation are caused, and at the moment, the engineering geology problems can be solved by supplying air through the decompression well.
本发明公开了一种水库周边低洼地带岩溶暗河上的地基基础保护方法，水库蓄水后，岩溶暗河地下水位升高，造成建筑物基础下部地下水位整体抬升，对建筑物地基产生岩溶塌陷、地基不均匀沉降、地基浮托力的工程地质问题；通过在建筑物基础下部岩溶暗河处布置减压排水井，将岩溶暗河系统的地下水以自流的形式溢出，然后通过地表明渠排走，这样可以降低场区岩溶承压水头压力，降低其对岩溶暗河顶部粘土层的浮托力，避免出现突涌而破坏地基基础；库水位骤降时，岩溶暗河系统内的地下水位骤降，此时地基基础下部的溶洞一部分处于真空状态下，引起地面岩溶塌陷、地基不均匀沉降的工程地质问题，此时通过减压井补给空气可以解决上述工程地质问题。
Foundation protection method on karst underground river in low-lying area around reservoir
The invention discloses a method for protecting a foundation on a karst underground river in a low-lying area around a reservoir, and aims to solve the engineering geological problems of karst collapse, uneven settlement of the foundation and floating force of the foundation of a building due to overall lifting of the underground water level of the lower part of the foundation of the building caused by rising of the underground water level of the karst underground river after water storage of the reservoir. A pressure-reducing drainage well is arranged at a karst underground river on the lower portion of a building foundation, and underground water of a karst underground river system overflows in a self-flowing mode and then is drained through an earth surface open channel, so that the pressure of a karst confined water head in a field area can be reduced, the uplift force of the karst confined water head on a clay layer on the top of the karst underground river is reduced, and the situation that a foundation is damaged due to inrush is avoided; when the reservoir water level drops suddenly, the underground water level in the karst underground river system drops suddenly, at the moment, part of the karst cave on the lower portion of the foundation is in a vacuum state, the engineering geology problems of ground karst collapse and uneven settlement of the foundation are caused, and at the moment, the engineering geology problems can be solved by supplying air through the decompression well.
本发明公开了一种水库周边低洼地带岩溶暗河上的地基基础保护方法，水库蓄水后，岩溶暗河地下水位升高，造成建筑物基础下部地下水位整体抬升，对建筑物地基产生岩溶塌陷、地基不均匀沉降、地基浮托力的工程地质问题；通过在建筑物基础下部岩溶暗河处布置减压排水井，将岩溶暗河系统的地下水以自流的形式溢出，然后通过地表明渠排走，这样可以降低场区岩溶承压水头压力，降低其对岩溶暗河顶部粘土层的浮托力，避免出现突涌而破坏地基基础；库水位骤降时，岩溶暗河系统内的地下水位骤降，此时地基基础下部的溶洞一部分处于真空状态下，引起地面岩溶塌陷、地基不均匀沉降的工程地质问题，此时通过减压井补给空气可以解决上述工程地质问题。
Foundation protection method on karst underground river in low-lying area around reservoir
一种水库周边低洼地带岩溶暗河上的地基基础保护方法
WANG JIANJUN (Autor:in) / LI HUIZHONG (Autor:in) / LUO YUHUA (Autor:in) / XIAO YUNHUA (Autor:in) / LIU GUODONG (Autor:in) / WANG TUANLE (Autor:in) / LIU CHONGPING (Autor:in) / PENG WEI (Autor:in) / WANG XIAOXIN (Autor:in) / HAO XIMING (Autor:in)
27.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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