A cast-in-place gasket construction for concrete structures such as tunnel segments includes a gasket body having a bottom face configured to be positioned against a surface of an associated tunnel segment. First and second gasket portions of the construction extend in different directions and are connected to each other at a first joint. The gasket portions are made of an elastomeric material having a first durometer on the Shore A hardness scale. The joint comprises an elastomeric material having a second and lesser durometer on the Shore A hardness scale. A method for replacing a damaged frame-like gasket construction is also disclosed.

A cast-in-place gasket construction for concrete structures such as tunnel segments includes a gasket body having a bottom face configured to be positioned against a surface of an associated tunnel segment. First and second gasket portions of the construction extend in different directions and are connected to each other at a first joint. The gasket portions are made of an elastomeric material having a first durometer on the Shore A hardness scale. The joint comprises an elastomeric material having a second and lesser durometer on the Shore A hardness scale. A method for replacing a damaged frame-like gasket construction is also disclosed.

A multifunctional wall clamping device includes a wall-clamping platform, a main body, and a wall-pressing device, wherein the main body has a center hole. The wall-pressing device includes a wall-pressing hydraulic cylinder disposed on an upper support, and a jacking cylinder disposed on a lower support. The wall-clamping platform includes two U-shape pincer boxes with a same geometry and a U-shaped horizontal cross section. The U-shape pincer boxes are arranged with openings facing each other on the same axis to form a combination with a rectangular cross section. A piston rod of the wall-pressing hydraulic cylinder is connected to a top of the wall-clamping platform such that the wall-clamping platform is vertically suspended in the center hole. Outside walls of the wall-clamping platform include roller wheels, which can roll on inner walls of the center hole and inner walls of rectangular columns of the upper support and the lower support.

A sea-cross high-speed tunnel structure suspended in water includes a pipe body capable of suspending in water. The pipe body is formed by fixedly connecting a plurality of pipe sections. A reinforced concrete horizontal partition plate for dividing each pipe section to form an upper chamber and a lower chamber is fixed in each pipe section. Two closed tunnels arranged along a length direction of the pipe body are disposed in the upper chamber. Reinforced concrete fin plates are symmetrically disposed in a horizontal direction outside the pipe sections. A steel closed tunnel shell fixed to the reinforced concrete horizontal partition plate is disposed in the upper chamber. A rail bed is disposed in the steel closed tunnel shell. Electromagnetic regulating devices disposed transversely are fixedly connected between both sides of the rail bed and the steel closed tunnel shell.

A sea-cross high-speed tunnel structure suspended in water includes a pipe body capable of suspending in water. The pipe body is formed by fixedly connecting a plurality of pipe sections. A reinforced concrete horizontal partition plate for dividing each pipe section to form an upper chamber and a lower chamber is fixed in each pipe section. Two closed tunnels arranged along a length direction of the pipe body are disposed in the upper chamber. Reinforced concrete fin plates are symmetrically disposed in a horizontal direction outside the pipe sections. A steel closed tunnel shell fixed to the reinforced concrete horizontal partition plate is disposed in the upper chamber. A rail bed is disposed in the steel closed tunnel shell. Electromagnetic regulating devices disposed transversely are fixedly connected between both sides of the rail bed and the steel closed tunnel shell.

The present application discloses a final joint of an immersed tunnel, a prefabrication method and an installation method, wherein the final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a tube section I and a tube section II which are connected with each other. The final joint of the immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall final joint is transported to the site for installation; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influence of weather and tidal current conditions on a project may be reduced, and a quality risk may be lowered.

The present application discloses a final joint of an immersed tunnel, a prefabrication method and an installation method, wherein the final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a tube section I and a tube section II which are connected with each other. The final joint of the immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall final joint is transported to the site for installation; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influence of weather and tidal current conditions on a project may be reduced, and a quality risk may be lowered.

An assembled subway station and a construction method thereof are provided. The assembled subway station includes a plurality of components combined in a ring shape, comprising a bottom plate component, two bottom corner components, two side wall components, a middle plate component, two top corner components, and a top plate component. Connection surfaces of each component are each provided with a concave-convex structure being matched with another concave-convex structure on a relevant connection surface of an adjacent component. Butt joint positions of two adjacent components are filled with sealing structures. The embedded grooves of two adjacent components are oppositely arranged, and connecting members for exerting opposite fastening forces on the two adjacent components are installed in the oppositely arranged embedded grooves. The opposite fastening forces are exerted on the two adjacent components through connecting members to ensure sealing structures at the butt joint position and achieve better sealing effects.

An assembled subway station and a construction method thereof are provided. The assembled subway station includes a plurality of components combined in a ring shape, comprising a bottom plate component, two bottom corner components, two side wall components, a middle plate component, two top corner components, and a top plate component. Connection surfaces of each component are each provided with a concave-convex structure being matched with another concave-convex structure on a relevant connection surface of an adjacent component. Butt joint positions of two adjacent components are filled with sealing structures. The embedded grooves of two adjacent components are oppositely arranged, and connecting members for exerting opposite fastening forces on the two adjacent components are installed in the oppositely arranged embedded grooves. The opposite fastening forces are exerted on the two adjacent components through connecting members to ensure sealing structures at the butt joint position and achieve better sealing effects.

The invention concerns a floor-to-wall joint connection BearStop device for providing both a water-tight seal, as well as load-bearing and flexibility between two closely abutting or adjacent structures, such as the wall and foundation of a storage tank. Embodiments also provide motion or sliding capabilities to accommodate expansion and contraction in the joint area between the wall and the foundation. A knee section provides a testing channel usable for testing the integrity of the seal.