Under the condition of the shield tunnel intersecting the ground fissure section at a right angle. a physical model test was conducted at a geometric scale ratio of 1:30. This test aimed to compare and analyze the force and deformation of the conventional shield tunnel and shield tunnel after adopting measures to mitigate the effects of ground fissure dislocation. Meanwhile. https://lockdownsecuritycanada.shop/product-category/smart-mirror-bracket/