A retaining wall system includes a plurality of large mass retaining blocks formed with vertically oriented openings passing therethrough for the installation of micro-pile soldier piles. The retaining blocks can be formed of pre-cast concrete and stacked vertically so that the vertical openings are aligned for the installation of micro-pile soldier piles through the stacked retaining blocks and into the bedrock below the retaining blocks. The micro-pile soldier piles can include a steel casing that is installed through the aligned vertical openings to terminate at the bedrock with grout filling the steel casing except for optional reinforcement. The retaining blocks can be formed with cutout key openings that allow concrete to be inserted to provide a key interlock between adjacent retaining blocks to further stabilize the retaining wall. The retaining wall can also include a row of waler blocks that incorporate a pair of tie-back anchors for each waler block.

A retaining wall system includes a plurality of large mass retaining blocks formed with vertically oriented openings passing therethrough for the installation of micro-pile soldier piles. The retaining blocks can be formed of pre-cast concrete and stacked vertically so that the vertical openings are aligned for the installation of micro-pile soldier piles through the stacked retaining blocks and into the bedrock below the retaining blocks. The micro-pile soldier piles can include a steel casing that is installed through the aligned vertical openings to terminate at the bedrock with grout filling the steel casing except for optional reinforcement. The retaining blocks can be formed with cutout key openings that allow concrete to be inserted to provide a key interlock between adjacent retaining blocks to further stabilize the retaining wall. The retaining wall can also include a row of waler blocks that incorporate a pair of tie-back anchors for each waler block.

A system that includes a plurality of front faces configured to be arranged end-to-end in a series. Adjacent front faces are connected together by a different X-shaped or X-wye connector that facilitates installation of reinforcement tail walls. At least one tail wall is connected to each connector. A redundant reinforcing tail wall may be constructed and attached to one of the connectors to provide alternative load path(s).

The invention relates to a retaining work (12) in ground (S), the work having a vertical front portion and separating a first portion of ground (S1) from a second portion of ground.

The front portion (14) is in the form of juxtaposed arched walls (16), each arched wall (16) presenting a concave side facing the first portion of ground and a convex side facing the second portion of ground, and the retaining work (12) further includes a rear portion (20) comprising a plurality of wall elements (22) having their largest faces extending vertically in the second portion of ground (S2), each wall element (22) being arranged between two adjacent arched walls (16) and extending transversely relative to the front portion (14).

The invention relates to a retaining work (12) in ground (S), the work having a vertical front portion and separating a first portion of ground (S1) from a second portion of ground.

The front portion (14) is in the form of juxtaposed arched walls (16), each arched wall (16) presenting a concave side facing the first portion of ground and a convex side facing the second portion of ground, and the retaining work (12) further includes a rear portion (20) comprising a plurality of wall elements (22) having their largest faces extending vertically in the second portion of ground (S2), each wall element (22) being arranged between two adjacent arched walls (16) and extending transversely relative to the front portion (14).

Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.

A modular foundation including plurality of prefabricated concrete modules defining an upper layer of modules including at least one internal passage opening onto at least its upper and lower faces, at least one lower layer of modules on which the upper layer at least partially rests, including at least one internal passage opening onto at least one of its sides and onto at least its upper face, this internal passage communicating at the level of the interface between the upper layer and the lower layer(s) with the internal passage of the upper layer in such a manner as to form at least one global internal passage in the foundation opening onto at least one side and onto at least the upper face of the foundation.