Calculation method for anti-settlement system of foundation pit supporting structure

The invention discloses a calculation method for an anti-sedimentation system of a foundation pit supporting structure. The calculation method comprises the following steps: S1, determining a plurality of stress units of the foundation pit supporting structure; s2, carrying out stress analysis on the stress unit, wherein the stress analysis at least comprises one of gravity analysis, pre-stress analysis and resistance analysis; and S3, determining the size of the anti-sedimentation structure based on a preset condition. Supporting piles and anchor cables are one of supporting schemes which are most widely applied in foundation pit engineering at present, but a bearing stratum in a soft soil area is often buried deeply, and the construction cost can be increased if settlement control measures are not taken. And settlement can be effectively controlled by arranging the anti-settlement plate, so that the purpose of reducing the designed pile length is achieved. On the premise of ensuring the engineering safety,