A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit water stop structure and construction method thereof
The invention relates to the technical field of foundation pit construction, and provides a foundation pit water stop structure and a construction method thereof.The foundation pit water stop structure is applied to a coastal riprap layer and comprises pouring row piles arranged around the edge of a foundation pit; the first jet grouting piles are arranged between the cast-in-place row piles, the first jet grouting piles and the cast-in-place row piles are connected in an engaged mode to form an inner side waterproof curtain, and the first jet grouting piles are formed in a jet grouting mode after holes are guided by a rotary drilling drill to be filled with clay in a replaced mode; the second jet grouting piles are arranged on the outer sides of the first jet grouting piles, the second jet grouting piles are connected in an engaged mode to form an outer side waterproof curtain, and the outer side waterproof curtain is connected with the first jet grouting piles in an engaged mode. The cast-in-place row piles are arranged on the edge of the foundation pit, the two layers of jet grouting piles are arranged on the basis of the cast-in-place row piles, stable pile forming of the riprap layer under the action of tidal water flow can be achieved, a jet grouting pile waterproof curtain complex is formed, and the problems that a waterproof curtain of a coastal deep riprap area is difficult to construct and poor in waterproof quality can be solved.
本发明涉及基坑施工技术领域，提供一种基坑止水结构及其施工方法，该基坑止水结构应用于临海的抛石层，该基坑止水结构包括：灌注排桩，灌注排桩绕基坑边缘设置；第一旋喷桩，第一旋喷桩设置于灌注排桩桩之间，第一旋喷桩与灌注排桩咬合连接形成内侧止水帷幕，且第一旋喷桩采用旋挖钻引孔换填黏土后旋喷成桩；第二旋喷桩，第二旋喷桩设置于第一旋喷桩外侧，第二旋喷桩咬合连接形成外侧止水帷幕，且外侧止水帷幕与第一旋喷桩咬合连接。通过在基坑边缘设置灌注排桩，并以灌注排桩为基础设置两层旋喷桩，能够在潮汐水流作用下的抛石层稳定成桩，形成旋喷桩止水帷幕综合体，可以解决临海深厚抛石区止水帷幕施工困难，止水质量差的问题。
Foundation pit water stop structure and construction method thereof
The invention relates to the technical field of foundation pit construction, and provides a foundation pit water stop structure and a construction method thereof.The foundation pit water stop structure is applied to a coastal riprap layer and comprises pouring row piles arranged around the edge of a foundation pit; the first jet grouting piles are arranged between the cast-in-place row piles, the first jet grouting piles and the cast-in-place row piles are connected in an engaged mode to form an inner side waterproof curtain, and the first jet grouting piles are formed in a jet grouting mode after holes are guided by a rotary drilling drill to be filled with clay in a replaced mode; the second jet grouting piles are arranged on the outer sides of the first jet grouting piles, the second jet grouting piles are connected in an engaged mode to form an outer side waterproof curtain, and the outer side waterproof curtain is connected with the first jet grouting piles in an engaged mode. The cast-in-place row piles are arranged on the edge of the foundation pit, the two layers of jet grouting piles are arranged on the basis of the cast-in-place row piles, stable pile forming of the riprap layer under the action of tidal water flow can be achieved, a jet grouting pile waterproof curtain complex is formed, and the problems that a waterproof curtain of a coastal deep riprap area is difficult to construct and poor in waterproof quality can be solved.
本发明涉及基坑施工技术领域，提供一种基坑止水结构及其施工方法，该基坑止水结构应用于临海的抛石层，该基坑止水结构包括：灌注排桩，灌注排桩绕基坑边缘设置；第一旋喷桩，第一旋喷桩设置于灌注排桩桩之间，第一旋喷桩与灌注排桩咬合连接形成内侧止水帷幕，且第一旋喷桩采用旋挖钻引孔换填黏土后旋喷成桩；第二旋喷桩，第二旋喷桩设置于第一旋喷桩外侧，第二旋喷桩咬合连接形成外侧止水帷幕，且外侧止水帷幕与第一旋喷桩咬合连接。通过在基坑边缘设置灌注排桩，并以灌注排桩为基础设置两层旋喷桩，能够在潮汐水流作用下的抛石层稳定成桩，形成旋喷桩止水帷幕综合体，可以解决临海深厚抛石区止水帷幕施工困难，止水质量差的问题。
Foundation pit water stop structure and construction method thereof
基坑止水结构及其施工方法
QIN HUIHUI (author) / XU GUOPING (author) / HUANG QINGFEI (author) / LIU MINGHU (author) / LIU HONGZHOU (author) / XU YU (author) / LIU JINHAO (author) / NIU CHAO (author) / DENG BIN (author) / JI HAI (author)
2023-09-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Water stop structure of deep foundation pit and construction method of water stop structure
| European Patent Office | 2023
Foundation pit support and water stop integrated structure and construction method thereof
| European Patent Office | 2015
Tower crane foundation hole advance water stop structure and construction system thereof
| European Patent Office | 2024
Foundation pit joint water stop structure system and construction method
| European Patent Office | 2023
Totally-enclosed foundation pit water stop system and construction method thereof
| European Patent Office | 2022