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A platform for research: civil engineering, architecture and urbanism
Slender open caisson structure and open caisson sectional sinking method
The invention relates to the technical field of open caisson engineering, in particular to a slender open caisson structure and an open caisson sectional sinking method. According to the characteristics of large lower part pressure and small upper part pressure of an open caisson, the open caisson is designed into two open caisson sections including an upper open caisson section and a lower open caisson section, and the length of the lower open caisson section accounts for 2/5 of the total length; under the action of self weight, the upper open caisson section of the open caisson can be basically sunk to a certain depth below the mud surface, force can be transmitted to the lower open caisson section through a double-acting jack by means of frictional resistance between the upper open caisson section and soil and the self weight, the lower open caisson section sinks, and after the lower open caisson section sinks to a certain depth, the upper open caisson section is pulled to sink through the double-acting jack under the self weight of the lower open caisson section and the frictional resistance, the upper open caisson section and the lower open caisson section are assisted in sinking through the double-acting jack, sinking of the open caisson is in a controllable state, and sudden sinking and rotation can be avoided; and ballast is not needed, the construction space is wide, and eccentric sinking of the open caisson can be corrected by single-side jacking force.
本发明涉及沉井工程技术领域，特指一种细长沉井结构以及沉井分节下沉的方法，根据沉井下部压力大、上部压力小的特点，将沉井设计成上节沉井段与下节沉井段两节沉井段，下节沉井段长度占总长度的2/5，在自重作用下沉井基本可将上节沉井沉放到泥面以下一定的深度，此时可借助上节沉井与土的摩阻力及自重通过双作用千斤顶将力传递到下节沉井上，使下节沉井下沉，待下节沉井下沉一定深度后，用双作用千斤顶借助下节沉井的重力及摩阻力牵引上节沉井下沉，由于上节沉井与下节沉井采用双作用千斤顶助沉，沉井的下沉处于可控状态，可避免突沉及旋转，由于不需要压载，施工空间开阔，还可借助于单侧的顶推力纠正沉井的偏沉。
Slender open caisson structure and open caisson sectional sinking method
The invention relates to the technical field of open caisson engineering, in particular to a slender open caisson structure and an open caisson sectional sinking method. According to the characteristics of large lower part pressure and small upper part pressure of an open caisson, the open caisson is designed into two open caisson sections including an upper open caisson section and a lower open caisson section, and the length of the lower open caisson section accounts for 2/5 of the total length; under the action of self weight, the upper open caisson section of the open caisson can be basically sunk to a certain depth below the mud surface, force can be transmitted to the lower open caisson section through a double-acting jack by means of frictional resistance between the upper open caisson section and soil and the self weight, the lower open caisson section sinks, and after the lower open caisson section sinks to a certain depth, the upper open caisson section is pulled to sink through the double-acting jack under the self weight of the lower open caisson section and the frictional resistance, the upper open caisson section and the lower open caisson section are assisted in sinking through the double-acting jack, sinking of the open caisson is in a controllable state, and sudden sinking and rotation can be avoided; and ballast is not needed, the construction space is wide, and eccentric sinking of the open caisson can be corrected by single-side jacking force.
本发明涉及沉井工程技术领域，特指一种细长沉井结构以及沉井分节下沉的方法，根据沉井下部压力大、上部压力小的特点，将沉井设计成上节沉井段与下节沉井段两节沉井段，下节沉井段长度占总长度的2/5，在自重作用下沉井基本可将上节沉井沉放到泥面以下一定的深度，此时可借助上节沉井与土的摩阻力及自重通过双作用千斤顶将力传递到下节沉井上，使下节沉井下沉，待下节沉井下沉一定深度后，用双作用千斤顶借助下节沉井的重力及摩阻力牵引上节沉井下沉，由于上节沉井与下节沉井采用双作用千斤顶助沉，沉井的下沉处于可控状态，可避免突沉及旋转，由于不需要压载，施工空间开阔，还可借助于单侧的顶推力纠正沉井的偏沉。
Slender open caisson structure and open caisson sectional sinking method
一种细长沉井结构以及沉井分节下沉的方法
LIU ZHONGYOU (author) / YU WUHUA (author) / ZHAO GANG (author) / ZHANG HONG (author)
2020-07-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Open caisson sinking assisting device, open caisson structure and control method
| European Patent Office | 2024
| European Patent Office | 2024