Construction method for deviation rectification of open caisson

Abstract

The invention discloses a construction method for deviation rectification of an open caisson, and relates to the technical field of deviation rectification of the open caisson, the construction method comprises the following steps: step S10, determining the number of soil sampling well holes and the soil sampling depth corresponding to each soil sampling well hole according to the actual deviation rectification amount of the open caisson, a preset first stress coefficient interval and a preset second stress coefficient interval; and S20, deviation rectification is conducted on the open caisson according to the determined number of the soil sampling well holes and the soil sampling depth corresponding to each soil sampling well hole. The method comprises the steps that firstly, the number of soil sampling well holes and the soil sampling depth corresponding to each soil sampling well hole are determined according to the actual open caisson deviation correction amount, a preset first stress coefficient interval and a preset second stress coefficient interval; and correcting the deviation of the open caisson according to the determined number of the soil sampling well holes and the soil sampling depth corresponding to each soil sampling well hole. The deviation rectifying effect is good, stable and accurate deviation rectifying of the open caisson in the large water area deep soft soil foundation environment can be achieved, and the construction time is short.

Description

technical field [0001] The invention relates to the technical field of caisson deviation correction, in particular to a construction method for caisson deviation correction. Background technique [0002] The foundation of deep soft soil has adverse characteristics such as high compressibility, rheology, sensitivity, and thixotropy. It is very difficult to control attitude during the sinking process of caissons in large waters under deep soft soil foundation conditions. The caisson is prone to uneven and rapid subsidence, and the inclination angle of the caisson is large, so it needs to face the technical problem of multiple corrections. [0003] The basis for judging the sinking of conventional caissons is the sinking coefficient, but the sinking coefficient is an overall index, which is mainly used to reflect the overall sinking amount of the caisson. When the caisson has a large inclination and requires unilateral subsidence to achieve the purpose of deviation correction...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a construction method for caisson deviation correction to solve the technical problem that the existing caisson deviation correction construction method makes the caisson deviation correction not in place, or overcorrects, and delays the construction period

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