The present disclosure discloses a fiber reinforce plastic (FRP) composite material pile prepared by an FRP composite material. The FRP composite material pile includes: an FRP winding pipe, an FRP pultrusion hollow profile, and a connecting device. The FRP pultrusion hollow profile includes an outer ring pipe, an inner ring pipe, and a plurality of reinforcing bars. The FRP pultrusion hollow profile is pultruded at one time by pultrusion equipment, and fiber materials thereof are arranged in the longitudinal direction of the pipe. The FRP winding pipe is provided with circumferential fiber materials by taking the FRP pultrusion hollow profile as a membrane, and forms a composite pipe section with the FRP pultrusion hollow profile. The inner ring shape of the cross section of the FRP winding pipe is matched with the FRP pultrusion hollow profile. The FRP connecting device includes connecting plates, connecting bars, and connecting pins.

A free-standing bracing tie is used for reinforcing a mattress type structure constructed with a metal mesh and intended for civil protection works. The bracing tie includes a main structure having a lower portion for connection to a base sheet of mesh of the mattress type structure and an upper portion for connection to a covering sheet of mesh of the mattress type structure. The lower portion and the upper portion are connected to each other by one or more bracing tie branches located in a main plane of the main structure. At least one support member is connected to the main structure so as to extend out of the main plane to produce a three-dimensional bracing tie structure capable of standing alone. The bracing tie can be closed for storage and transport and can be opened at the location for positioning the mattress type structure.

A precast concrete gravity-base foundation is provided that is both floatable and submersible in water, and is suitable for mounting the shaft of an offshore wind turbine. The foundation comprises a bottom slab, four cylinders positioned at each corner, a centrally located cylinder, and a top slab covering each of the corner cylinders and having a central opening that receives the top portion of the centrally located cylinder. The foundation's configuration and positioning of the corner cylinders provide maximum stability, and once the corner cylinders are filled with sand, stone, or the like, the corner cylinders further bolster the overall mass and stability of the foundation. The foundation is produced on land, rolled onto a submersible jack-up barge, and transported to either a predetermined storage location or an installation site. The foundation's buoyancy and versatile storage options allow contractors to work year-round with fewer ships, cranes, equipment, and workers at the job site, making it a valuable addition to the offshore wind industry.

Provided is an anchor assembly having a pre-stressed mandrel, which consists of an inner pre-stressed concrete mandrel and an outer cast-in-place anchoring slurry, wherein pre-stressed tendons are arranged inside the concrete mandrel and are prefabricated by a pretensioning method; the anchoring slurry wraps the pre-stressed concrete mandrel, and the cast-in-place anchoring slurry is formed by placing the pre-stressed concrete mandrel in a pile hole, and solidifying after primary grouting or secondary grouting. According to the anchor assembly, the pre-stress is not required to be tensioned and locked on site, so that the quality of the pre-stressed mandrel can be ensured, the on-site construction period can be greatly shortened, and the existing pre-stressed and common non-pre-stressed anchors can be replaced.

The present invention is directed to a retaining wall system including a retaining wall having with at least one retaining wall rebar extending along a vertical direction, the at least one retaining wall rebar includes an end formed into a first retaining wall rebar hook, at least one deadman spaced from the retaining wall, each deadman including a concrete base extending along the vertical direction, the concrete base including rebar extending past the concrete base and having an end formed into a deadman rebar hook, at least a first hole at a top portion of the retaining wall and extending into the retaining wall to expose the retaining wall rebar hook, and a first cable attached to the retaining wall rebar hook and to the deadman rebar hook to support the retaining wall.

A retaining wall system includes at least one wall block, at least one ground-stabilizing base body supporting the at least one wall block, a fastening body under the at least one ground-stabilizing base body, and at least one tension link attached to the at least one wall block and to the fastening body.

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.

Disclosed are various embodiments of a mechanically stabilized earth (MSE) retaining wall that employ, for reinforcement, a geosynthetic strip that attaches to the MSE retaining wall and extends into the backfill soil. In one embodiment, the MSE retaining wall has at least one concrete panel. The panel has a cavity extending from the backside into the body for receiving a flexible, generally flat, geosynthetic strip. The panel has a plastic pipe (or first cylindrical body) that is situated within the body of the panel in a position so that the plastic pipe is generally horizontal from a front elevation view vantage point of the panel and is generally parallel with the backside of the panel from a top view vantage point of the panel. The plastic pipe extends through the cavity and its ends reside within the concrete panel. The MSE retaining wall further includes a steel rod situated inside of the plastic pipe. The geosynthetic strip extends from backfill soil adjacent to the backside of the panel, into the cavity of the panel, around the elongated body of the plastic pipe, out of the cavity, and into the backfill soil. In another embodiment of the MSE retaining wall, an end of the geosynthetic strip is bound to the panel with a double compression loop arrangement that utilizes an additional solid second plastic rod (or second cylindrical body).

A budding element for coupling with other budding elements to erect a retaining wall. Exemplary building elements have receiving spaces for receiving increased weight of fill material to provide increased stability. Optionally, each building element can have an enlarged face profile that provides efficiency in the shipping and assembly process. Optionally, each building element can define alignment voids that receive portions of alignment posts for ensuring vertical alignment between adjacent building elements or portions of building elements.

The present disclosure discloses a fiber reinforce plastic (FRP) composite material pile prepared by an FRP composite material. The FRP composite material pile includes: an FRP winding pipe, an FRP pultrusion hollow profile, and a connecting device. The FRP pultrusion hollow profile includes an outer ring pipe, an inner ring pipe, and a plurality of reinforcing bars. The FRP pultrusion hollow profile is pultruded at one time by pultrusion equipment, and fiber materials thereof are arranged in the longitudinal direction of the pipe. The FRP winding pipe is provided with circumferential fiber materials by taking the FRP pultrusion hollow profile as a membrane, and forms a composite pipe section with the FRP pultrusion hollow profile. The inner ring shape of the cross section of the FRP winding pipe is matched with the FRP pultrusion hollow profile. The FRP connecting device includes connecting plates, connecting bars, and connecting pins.