The present invention relates generally to a rubber applicator device for concrete joint lines that is primarily comprised of a body further comprised of an exterior shaft, an interior shaft, a rotating locking mechanism, and at least one protrusion. The body of the device is preferably cylindrical and can increase in length to accommodate users of any height. The at least one protrusion guides rubber into a concrete keyway, while the user walks the device along the concrete keyway. In this manner, the device can be applied to any concrete keyway joint, such that a user can remain upright with less stress and strain on their back, while applying rubber to a concrete keyway joint.

The present application provides a water stopping device of suspension and sliding type, including: a water stop; a first end thereof is connected with a first joint segment and a second end thereof is connected with a second joint segment to form a water stopping cavity; at least one first rod; a first end thereof is connected with the first joint segment and a second end thereof is movably connected with the second joint segment; and at least one first hanging structure, connected with the water stop and the corresponding first rod, and slidably provided on the corresponding first rod. The water stopping device can be applied in joint construction of an immersed tunnel.

The present application provides a water stopping device of suspension and sliding type, including: a water stop; a first end thereof is connected with a first joint segment and a second end thereof is connected with a second joint segment to form a water stopping cavity; at least one first rod; a first end thereof is connected with the first joint segment and a second end thereof is movably connected with the second joint segment; and at least one first hanging structure, connected with the water stop and the corresponding first rod, and slidably provided on the corresponding first rod. The water stopping device can be applied in joint construction of an immersed tunnel.

An expansion joint includes a foam strip having first and second lateral side surfaces extending axially outward to an outer edge surface, and an elongated gasket having a laterally expandable portion adhered to the outer edge surface of the foam strip, with the laterally expandable portion extending between first and second lateral end portions. The first and second lateral end portions each define at least one of a laterally outward facing bonding surface and an axially inward facing bonding surface, with the at least one bonding surface being spaced apart axially outward from the corresponding one of the first and second lateral side surfaces of the foam strip.

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.

Provided are apparatus and method(s) for forming one or more shear key(s) between embedded concrete retaining wall(s) and concrete floor slab(s), kits for forming such shear key(s) and underground structures such as embedded concrete wall(s) and slab(s) comprising a shear key. In particular, the invention relates to a shear key former apparatus comprising: a box having an enclosable, internal volume, the box comprising a base and at least one, and preferably four, side wall(s), the side wall(s) terminating in a rim; rearwardly of the rim in two opposing portions of the side wall(s), at least one pair of opposing apertures, each pair of apertures defining an entrance and exit in each respective side wall portion for a rigid member to be accommodated extending across the internal volume between the entrance and the exit; a closure panel configured to be received into the rim to enclose the internal volume.

Provided are apparatus and method(s) for forming one or more shear key(s) between embedded concrete retaining wall(s) and concrete floor slab(s), kits for forming such shear key(s) and underground structures such as embedded concrete wall(s) and slab(s) comprising a shear key. In particular, the invention relates to a shear key former apparatus comprising: a box having an enclosable, internal volume, the box comprising a base and at least one, and preferably four, side wall(s), the side wall(s) terminating in a rim; rearwardly of the rim in two opposing portions of the side wall(s), at least one pair of opposing apertures, each pair of apertures defining an entrance and exit in each respective side wall portion for a rigid member to be accommodated extending across the internal volume between the entrance and the exit; a closure panel configured to be received into the rim to enclose the internal volume.

A method for sealing a post-cast strip in a foundation with no gap includes the following steps: mounting steel plates, horizontal pipes and vertical pipes cooperatively layer by layer in a post-cast strip, respectively, such that the upper open end of each vertical pipe protrudes from the ground through the post-cast strip; pouring grout into the post-cast strip from the top of the post-cast strip after the end of the settlement of the foundation, and carrying out high-pressure grouting into the vertical pipe using grouting equipment simultaneously; delivering the sealing grout poured into the vertical pipe to the horizontal pipes, such that the sealing grout overflows from the grout outlets of the horizontal pipes to densely fill up existing gaps; and cutting off the portion of the vertical pipe above the ground after the post-cast strip is completely sealed, and levelling the top of the cut-off vertical pipe with concrete.

A method for sealing a post-cast strip in a foundation with no gap includes the following steps: mounting steel plates, horizontal pipes and vertical pipes cooperatively layer by layer in a post-cast strip, respectively, such that the upper open end of each vertical pipe protrudes from the ground through the post-cast strip; pouring grout into the post-cast strip from the top of the post-cast strip after the end of the settlement of the foundation, and carrying out high-pressure grouting into the vertical pipe using grouting equipment simultaneously; delivering the sealing grout poured into the vertical pipe to the horizontal pipes, such that the sealing grout overflows from the grout outlets of the horizontal pipes to densely fill up existing gaps; and cutting off the portion of the vertical pipe above the ground after the post-cast strip is completely sealed, and levelling the top of the cut-off vertical pipe with concrete.