Intelligent fuzzy identification and control method and system for soft stratum retreat type sectional grouting

Abstract

The application discloses a kind of weak stratum receding type section grouting intelligent fuzzy identification and control method and system, comprising the following steps: in the process of grouting, real-time acquisition grouting pressure, grouting flow and pull tube displacement data;According to fixed section length, the grouting process is divided, and the grouting parameters of each section are calculated;With grouting parameters as features, a three-level fuzzy inference system is used to identify weak strata;According to the identification result, the grouting parameters are adjusted adaptively, and the grouting is continued until the standard condition is reached;After grouting is completed, a three-level grouting effect evaluation system of point, line and body is constructed to evaluate the grouting effect.The application realizes real-time acquisition of grouting parameters, combined with hierarchical fuzzy judgment, to identify the weak characteristics of strata and the grouting state in real time, and uses the identification result as a closed-loop control decision, to adaptively optimize the section grouting parameters during construction, and to ensure stable and reliable reinforcement effect.Through the evaluation system, the improvement effect of single point, single tube and overall strata is graded.

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