A protection assembly for protecting a wall, comprising: a coating system for coating a portion of the wall; a flexible covering for covering the coating system, and having fixing portions at end regions of the flexible covering; and a wall anchor system, wherein, in use, the coating system is located between the flexible covering and wall anchor system, and the flexible covering is anchored, at the fixing portions, in a tensioned condition to the wall by the wall anchor system, so the flexible covering produces a force to press the coating system against the wall.

Embodiments of the present disclosure generally relate to a pumping unit base and methods for operating with the pumping unit base. The pumping unit base may include a plurality of driven piles installed in the ground, and a metal platform fixedly attached to the plurality of driven piles, wherein the metal platform is positioned above the ground. The metal platform may be removed from the driven piles and reinstalled to the driven piles.

A pumping unit base and methods for producing oil and gas with the pumping unit base. The pumping unit base may include a plurality of driven piles installed in the ground, and a metal platform fixedly attached to the plurality of driven piles, wherein the metal platform is positioned above the ground. The metal platform may be removed from the driven piles and reinstalled to the driven piles.

Embodiments of the invention are stakes for securing concrete-casting forms to the ground (e.g., compacted earth and compacted gravel surfaces), which can be inserted and removed easily by using an impact drill or hammer drill. Modular concrete casting forms and other accessories are also described and claimed.

A foundation for an offshore structure is disclosed. The foundation includes a tower having an anchoring portion anchored in the seabed and a connecting portion arranged at the opposite end. The foundation also includes a power generation system arranged above the water surface connected to the connecting portion of the tower. A natural frequency of the offshore structure lies below an excitation component one times the rotational frequency 1P of at least one exciting component. The foundation also includes at least one restoring element connected to the tower via one or more transition pieces. The restoring element is designed such that, in a skewed position of the tower, tensile and/or compressive forces can be transferred to the tower by means of the restoring element such that the tower can be straightened up.

The invention relates to an arrangement for supporting a thin-walled steel pile (5; 17; 26; 35) in an impact pile driving device, the arrangement comprising a supporting surface (4; 14; 23; 31), to which the steel pile (5; 17; 26; 35) can be supported, and in which arrangement the supporting surface (4; 14; 23; 31) is provided with one or more absorbing surfaces (6; 16; 25; 33) to be placed against the end of the wall (8; 18, 26; 36) of the steel pile (5; 17; 26; 35). In the arrangement according to the invention, the absorbing surface (6; 16; 25; 33) is configured to shape the end of the wall (8; 18; 27; 36) of the steel pile (5; 17, 26; 35) coming against the absorbing surface (6; 16; 25; 33), by the effect of the impact driving of the steel pile (5; 17; 26; 35), so that at least the part of the wall (8; 18; 27; 36) at the absorbing surface (6; 16; 25; 33) of the wall (8; 18; 27; 36) is shaped against the absorbing surface (6; 16; 25; 33), wherein the movement of the wall (8; 18; 27; 36) in the direction of a plane transverse to the direction of impact driving of the steel pile is prevented, at least at the head of the steel pile (5; 17; 26; 35). Also, the absorbing surface (6; 16; 25; 33) in the supporting surface (4, 14; 23; 31) can be configured to be shaped by the effect of the impact driving of the steel pile (5; 17, 26, 35) so that the absorbing surface (6; 16; 25; 33) is shaped against the part of the wall (8; 18, 27; 36) of the steel pile (5; 17; 26; 35) at the absorbing surface (6; 16; 25; 33), whereby the movement of the wall (8; 18; 27; 36) at the head of the steel pile (5; 17; 26; 35) is prevented. The invention also relates to a method for arranging the support of a steel pile (5; 17; 26; 35) in an impact pile driving device.

A temporary mechanical and fluidic connection with an anchor wall of a subsea tubular may use a substantially solid, reusable lid for a subsea tubular, which comprises a substantially solid upper surface, a predetermined set of lid anchors (20), a predetermined set of selectively activated valves (30), a seal (40) configured to engage an internal wall (101) of the subsea tubular and create a seal between substantially solid upper surface and the internal wall of the subsea tubular, a connector (50), and a controller (60) by maneuvering the substantially solid, reusable lid proximate an open end (102) of a subsea tubular (100), attaching the substantially solid, reusable lid to the open end of the subsea tubular, using the lid anchors (20) to secure the substantially solid, reusable lid to the open end of the subsea tubular, and operatively engaging the seal (40) to create an occlusive seal between substantially solid upper surface and an internal wall (101) of the subsea tubular.

Systems and methods for soil improvement foundation isolation and load spreading are provided. The systems and methods provided herein relate to isolation of structural foundations from soil improvement elements and distributing stress from high stiffness elements to lower stiffness materials. A shear load transfer reduction system may include one or more ground improvement elements for supporting an applied load. A shear break element may be positioned above one or more ground improvement elements. The shear break elements may be configured to have low interface shear strength. Further, systems and methods are provided for creating an engineered slip surface for reducing shear stresses between a laterally loaded foundation and a rigid foundation support element and wherein two slip pads are provided that form the engineered slip surface.

A device for protecting against the scouring of granular fillings submerged in gravity structures in which a filling with granular materials must be deposited once the structures are submerged, so that the structures reach a weight sufficient to en sure the stability thereof against the actions to which they are subjected. The device consists of one or more porous covers that sit and/or are secured as an upper closure of the structure to protect the inner filling, each of the covers having a plurality of openings that are distributed on the surface thereof and have a size suitable to allow the passage of the filling material, which filling material is transferred to the inside of the structure simply by pouring until a height close to the cover is reached, leaving a margin or chamber between the two that is suitable for generating an internal turbulence that dissipates wave energy and incident currents, thereby making it difficult for the filling material to escape from the inside through the openings.

An anchor is provided whose number of processes of work at the time of performance of installation work can be reduced and which can selectively fix a plurality of types of fixing targets. An anchor 10 includes: a shaft 22 to be buried in a ground; a head 24 into which a propulsive force for propelling the shaft 22 in the ground is inputted, the head 24 being provided on an upper end portion 22a of the shaft 22; and a sleeve 26 having a tubular peripheral wall portion 42 placed around the head 24. An outer diameter of the head 24 is specified to be greater than an outer diameter of the shaft 22. Consequently, an undersurface 32a is secured on an outer peripheral portion 32 of the head 24. The peripheral wall portion 42 is provided in an upper end portion 42a with an opening portion 44 in which a first fixing target 12c, 12d, or 12f is fitted as needed. The peripheral wall portion 42 is provided in a lower end portion 42b with a retainer 46 including an opposing surface 48 facing the outer peripheral portion 32 (the undersurface 32a) of the head 24 from below, and a retaining surface 50 to be pressed against a second fixing target 12a or 12b from above as needed.