Soft soil area tower crane foundation construction supporting construction

The utility model provides an under soft soil area tower crane foundation construction supporting construction, supporting construction are located the basement roof includes strut the open caisson, it includes that it keeps off native side wall, connects jing dingquanliang, the shaft bottom collar tie beam at the bottom of connecting the wall and the structure corner post of open caisson in order of wall crown in order to close the open caisson that forms all around in the tower crane basis earthwork to strut the open caisson, the size of strutting the open caisson suits with the basic size of tower crane, the structure corner post lies in the corner that two slice adjacent open caissons kept off native side wall, and the top of structure corner post is connected with jing dingquanliang's bottom, and the bottom of structure corner post is connected with the top of shaft bottom collar tie beam, wide narrow down on the section of shaft bottom collar tie beam, the inside wall of shaft bottom collar tie beam be strut the open caisson subside the sword limit. The utility model discloses can reduce work load when guaranteeing the construction progress, reduce cost has solved the tower crane and has inserted and installed a difficult difficult problem in advance.