In engineering field,the horizontal reinforcement method is commonly used to prevent local subsidence and even road collapse caused by the overburden pressure and groundwater level changes resulting from construction-induced underground cavities.By summarizing the research findings from existing literature at home and abroad,this study focused on elucidating the load transfer mechanism of the active door test,including the load transfer mechanism of the soil arch effect and the tension membrane effect itself under various theoretical research models.It also summarized the soil arch deformation patterns and evolutionary laws of the active door test,as well as the experimental methods,and discussed the shortcomings of the test.The results indicate that most of the research is focused on two-dimensional experiments cur-rently,with limited studies conducted on active door experiments under three-dimensional conditions.Additionally,the ex-isting calculation models for soil arch effect and tension membrane effect are relatively simplistic.Furthermore,the cou-pling interaction between the soil arch effect and tension membrane effect has not been thoroughly studied,and there is a need to explore their mutual influence in load transfer more comprehensively.Therefore,it is imperative to conduct more three-dimensional active door experiments to delve into the coupling mechanism of the soil arch effect and tension mem-brane effect,and to enhance and refine the calculation models to enhance their accuracy and reliability.
trapdoor testload transfer lawsoil arching effecttension membrane effect
NETL
NSTL
万方数据
