Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit water stopping and dewatering method and water stopping and dewatering system
The invention provides a foundation pit water stopping and dewatering method and a water stopping and dewatering system. The foundation pit water stopping and dewatering method comprises the steps that a waterproof supporting structure is arranged in a foundation pit; compressed gas is introduced into a foundation soil body below the bottom end of the supporting structure along the periphery of the supporting structure, the compressed gas is diffused in the foundation soil and forms a continuous and complete water-stopping air curtain in the circumferential direction of a foundation pit after reaching a stable state, and the water-stopping air curtain and the waterproof supporting structure jointly form a cylindrical space water-stopping system. Hydraulic connection inside and outside the foundation pit is blocked; and the dewatering well points in the pit are opened, and the underground water level in the foundation pit is lowered to the needed depth. The compressed gas is used for forming the water stopping air curtain at the bottom end of the waterproof supporting structure, a cylindrical space water stopping system jointly composed of the water stopping air curtain and the waterproof supporting structure is used for stopping water of the foundation pit, and in-pit dewatering is achieved in combination with in-pit well points. The method is low in cost, short in construction period and environmentally friendly.
本申请提供了一种基坑止水降水方法及止水降水体系，基坑止水降水方法包括：在基坑中设置不透水支护结构；沿支护结构的外周，向支护结构的底端以下的地基土体中通入压缩气体，压缩气体在地基土中扩散且达到稳定状态后形成绕基坑周向连续、完整的止水气幕，止水气幕与不透水支护结构共同形成筒状空间止水体系，阻隔基坑内外的水力联系；开启坑内降水井点，将基坑内地下水位降至所需深度。本申请运用压缩气体在不透水支护结构底端形成止水气幕，利用止水气幕、不透水支护结构共同组成的筒状空间止水体系对基坑进行止水，并结合坑内井点来实现坑内降水。本申请成本低、工期短、绿色环保。
Foundation pit water stopping and dewatering method and water stopping and dewatering system
The invention provides a foundation pit water stopping and dewatering method and a water stopping and dewatering system. The foundation pit water stopping and dewatering method comprises the steps that a waterproof supporting structure is arranged in a foundation pit; compressed gas is introduced into a foundation soil body below the bottom end of the supporting structure along the periphery of the supporting structure, the compressed gas is diffused in the foundation soil and forms a continuous and complete water-stopping air curtain in the circumferential direction of a foundation pit after reaching a stable state, and the water-stopping air curtain and the waterproof supporting structure jointly form a cylindrical space water-stopping system. Hydraulic connection inside and outside the foundation pit is blocked; and the dewatering well points in the pit are opened, and the underground water level in the foundation pit is lowered to the needed depth. The compressed gas is used for forming the water stopping air curtain at the bottom end of the waterproof supporting structure, a cylindrical space water stopping system jointly composed of the water stopping air curtain and the waterproof supporting structure is used for stopping water of the foundation pit, and in-pit dewatering is achieved in combination with in-pit well points. The method is low in cost, short in construction period and environmentally friendly.
本申请提供了一种基坑止水降水方法及止水降水体系，基坑止水降水方法包括：在基坑中设置不透水支护结构；沿支护结构的外周，向支护结构的底端以下的地基土体中通入压缩气体，压缩气体在地基土中扩散且达到稳定状态后形成绕基坑周向连续、完整的止水气幕，止水气幕与不透水支护结构共同形成筒状空间止水体系，阻隔基坑内外的水力联系；开启坑内降水井点，将基坑内地下水位降至所需深度。本申请运用压缩气体在不透水支护结构底端形成止水气幕，利用止水气幕、不透水支护结构共同组成的筒状空间止水体系对基坑进行止水，并结合坑内井点来实现坑内降水。本申请成本低、工期短、绿色环保。
Foundation pit water stopping and dewatering method and water stopping and dewatering system
基坑止水降水方法及止水降水体系
LIU YUANFENG (Autor:in) / YANG YUYUAN (Autor:in) / LIU WENSHENG (Autor:in) / GUAN JIAXIN (Autor:in) / JIN CHAO (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Analysis of the Effect of Stopping Dewatering on Group Piles Foundation
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Analysis of the Effect of Stopping Dewatering on Group Piles Foundation
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