Model test method for simulating gradual weakening of slope strength

• Main Authors: ZHANG ZHE, YANG TAO, RAO YUNKANG, CHEN HUAILIN, YU HAIHONG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a model test method for simulating gradual weakening of slope strength, and relates to the technical field of geomechanical model tests.The method comprises the steps that a base material is cured to obtain a sample, and the sample is a cylinder; according to a preset model slope evolution duration, a weakening solution is selected by adopting a trial preparation method; immersing the model slope by using the weakening solution to carry out a weakening test; obtaining evolutionary process information of the model slope, and determining corresponding critical time when a slip crack surface appears on the model slope; performing a weakening test on the sample by using the weakening solution, and performing an unconfined compression test on the sample when the test time reaches the critical time to obtain the cohesive force of the sample; and calculating the critical cohesion of the prototype slope according to the cohesion of the sample. Under the condition that the shear strength of the