The application discloses a kind of composite cemented filling
material design method, and the application relates to the technical field of mine filling, comprising the following steps: determining optimization component and its optimization domain, and randomly generating multiple groups of design combinations, preparing filling material and filling to be filled sample to form composite filling body test piece;Sample test body is cured under simulated environment, with the degree of hydration heat reaction as index, dynamically adjust sampling interval and determine multiple sampling time;
Coupling monitoring test is carried out using the detection method of pulse velocity and low-frequency
dielectric spectrum combination, interface
coupling degree parameter is extracted, and cementation
coupling degree is calculated, and the termination time is determined based on its change rate;The structural strength at this time is obtained, and the preset strength is used as constraint, the cementation
coupling degree maximization and the experimental time minimization are used as optimization goal, the double objective optimization function is set, and the
optimal design combination is determined by optimization
algorithm, which can significantly reduce
engineering risk and prolong the service life of structure.