Combined anchorage pier positioning system and method of water open caisson

Abstract

The invention relates to the field of caisson construction, and discloses a combined anchor pier positioning system for caissons on water, which includes two anchor piers arranged parallel to the reciprocating flow direction and symmetrically centered on the caisson, and perpendicular to the reciprocating flow direction and with The caisson is a plurality of side anchors arranged symmetrically to the center. The anchor pier and the side anchors are connected to the caisson by cables. There are multiple auxiliary anchors behind the anchor pier, and each auxiliary anchor is connected to the anchor pier through The cable is connected, and the top of the anchor pier is also provided with a cable take-up system for tensioning the cables between the anchor pier, the caisson and the auxiliary anchor. The invention also discloses a combined anchor pier positioning method for an overwater caisson. The invention can effectively optimize the anchor pier structure and reduce the engineering amount.

Description

technical field [0001] The invention relates to the field of caisson construction, in particular to a combined anchor pier positioning system and method for caissons above water. Background technique [0002] For the positioning of caissons on the water, positioning boats and positioning anchors are generally used to locate the caissons. The anchor claws embedded in the soil of the positioning anchors and the positioning boats provide horizontal tension to the caissons, thereby tensioning and fixing the caissons to achieve precision. purpose of positioning. [0003] In the environment of lakes and rivers, due to the low water flow velocity, conventional positioning anchors and positioning boats can be used to fix the caisson well, but in some specific marine waters environments, such as deep soft foundation, reciprocating flow, etc. In the complex water environment, the reciprocating flow is the current opposite to the rising and falling currents due to the influence of the...

AI Technical Summary

Problems solved by technology

[0003] In the environment of lakes and rivers, due to the low water flow velocity, conventional positioning anchors and positioning boats can be used to fix the caisson well, but in some specific marine waters environments, such as deep soft foundation, reciprocating flow, etc. In the complex water environment, the reciprocating flow is the current opposite to the rising and falling currents due to the influence of the terrain. The strong current formed by the reciprocating flow will greatly affect the stability of the positioning ship itself, making it impossible for the positioning ship to provide the caisson. Constant fixed tension, at the same time, the soft soil layer of the deep soft foundation cannot provide grip for the anchor fluke of the positioning anchor, so that the positioning anchor loses its fixing effect, so the positioning anchor and the positioning ship cannot fix the caisson well, affecting At the same time, if a fixed positioning structure is used to locate the caisson, the deep soft soil layer will easily have an adverse effect on the stiffness of the positioning structure. In order to meet the requirements for the positioning accuracy of the caisson, the scale of the positioning structure It is bound to increase, thereby increasing the engineering volume of the entire project

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