The application discloses a kind of
bank side slope rock-soil body
strength parameter maximum weakening coefficient determination method, it is related to
geotechnical engineering technical field, including, with structure main
control area set as the main
control factor of local mechanism model, the boundary condition and load condition of definition geological environment condition, set key response point observation position, construct local mechanism model with physical constraint;Multiple source sensing equipment is arranged in key response point observation position and
monitoring data is collected, and difference optimization target is constructed with local mechanism model, difference optimization target is inverted, and the maximum weakening coefficient of target area is obtained;Maximum weakening coefficient is input, and numerical
verification is carried out by local mechanism model, based on
verification consistency, the maximum weakening coefficient of target area is extracted.The application can accurately depict the strength attenuation degree of
bank side slope rock-soil body under limit working condition under the premise of keeping the consistency of geology and
mechanics boundary, realizes the accurate determination and
risk assessment of key unstable position.