A system is for establishing a collection of well foundations, the well foundations being formed of suction-foundation units arranged to be driven down into an unconsolidated mass. An alignment template includes several through cut-outs, each arranged to receive a suction-foundation unit. The alignment template placed over the unconsolidated mass, forms a means of positioning the suction-foundation units before the suction-foundation units are driven down into the unconsolidated mass. A method of establishing a collection of well foundations is described as well.

A system is for establishing a collection of well foundations, the well foundations being formed of suction-foundation units arranged to be driven down into an unconsolidated mass. An alignment template includes several through cut-outs, each arranged to receive a suction-foundation unit. The alignment template placed over the unconsolidated mass, forms a means of positioning the suction-foundation units before the suction-foundation units are driven down into the unconsolidated mass. A method of establishing a collection of well foundations is described as well.

A bearing surface of a subsea foundation has a low-resistance coating such as an aerogel, an aero-clay or a polymeric film. When the foundation is installed, the bearing surface is embedded in the seabed soil using the low-resistance coating to reduce resistance to movement of the bearing surface relative to the seabed soil. The coating may then dissolve or fragment away from the bearing surface or transform into a higher-resistance state while remaining on the bearing surface. These mechanisms degrade a resistance-reducing property of the coating to increase resistance to movement of the embedded bearing surface relative to the seabed soil. Suction may be applied to the foundation before or after the resistance-reducing property of the coating has substantially degraded.

A bearing surface of a subsea foundation has a low-resistance coating such as an aerogel, an aero-clay or a polymeric film. When the foundation is installed, the bearing surface is embedded in the seabed soil using the low-resistance coating to reduce resistance to movement of the bearing surface relative to the seabed soil. The coating may then dissolve or fragment away from the bearing surface or transform into a higher-resistance state while remaining on the bearing surface. These mechanisms degrade a resistance-reducing property of the coating to increase resistance to movement of the embedded bearing surface relative to the seabed soil. Suction may be applied to the foundation before or after the resistance-reducing property of the coating has substantially degraded.

Methods of lifting structures such as a wall of a building. A fluid that is under pressure is injected beneath the base of the wall. The pressure of the injected fluid acts against the base of the wall to lift the wall vertically. In some embodiments, a supplemental lifting force mechanism can be attached to the wall to apply a supplemental lifting force to the wall that acts together with the lifting force applied by the injected fluid. The supplemental lifting force lightens the wall, reducing the amount of lifting force required to be applied to the wall by the injected fluid.

Methods of lifting structures such as a wall of a building. A fluid that is under pressure is injected beneath the base of the wall. The pressure of the injected fluid acts against the base of the wall to lift the wall vertically. In some embodiments, a supplemental lifting force mechanism can be attached to the wall to apply a supplemental lifting force to the wall that acts together with the lifting force applied by the injected fluid. The supplemental lifting force lightens the wall, reducing the amount of lifting force required to be applied to the wall by the injected fluid.

A pile press-in construction method uses a pile press-in device having a saddle, a clamp device grasping a top of an existing pile, a mast, a raising and lowering device, and a chuck device supported by the mast and holding a pile. The pile press-in device generates a reaction force by griping the existing pile with the clamp device, holds the pile by the chuck device, presses the pile into the ground by the raising and lowering device, and successively presses piles in while moving on a pile row including the existing pile to thereby extend the pile row. By turning of the mast and tilting of the chuck device about a chuck tilting axis, the chuck device is laid sideways and projects outward to a side of the pile row, the pile is supplied and inserted into the chuck device, and the chuck device grasps the pile.

A pile press-in construction method uses a pile press-in device having a saddle, a clamp device grasping a top of an existing pile, a mast, a raising and lowering device, and a chuck device supported by the mast and holding a pile. The pile press-in device generates a reaction force by griping the existing pile with the clamp device, holds the pile by the chuck device, presses the pile into the ground by the raising and lowering device, and successively presses piles in while moving on a pile row including the existing pile to thereby extend the pile row. By turning of the mast and tilting of the chuck device about a chuck tilting axis, the chuck device is laid sideways and projects outward to a side of the pile row, the pile is supplied and inserted into the chuck device, and the chuck device grasps the pile.

A multifunctional wall clamping device of a static piling machine comprises a wall clamping platform (1), a machine body (31), and a wall pressing device. A through machine body hole (6) is vertically provided in the center of the machine body (31). The wall pressing device is disposed on the machine body (31). The wall pressing device comprises a wall pressing oil cylinder (7) and a jacking oil cylinder (27). The wall pressing oil cylinder (7) is disposed on an upper support (25). The jacking oil cylinder (27) is disposed on a lower support (26). The wall clamping platform (1) comprises two horizontal U-shaped pincer-like boxes (2) identical in geometric size. Openings of the boxes are opposite, and the two boxes are arranged on the same axis to form a combination with a rectangular section. The top surface of the wall clamping platform (1) is hinged by a piston rod (8) of the wall pressing oil cylinder (7) and vertically suspended in the machine body hole (6). Rolling wheels (9) are mounted on the side walls of the periphery of the wall clamping platform (1), and act on the corresponding inner side walls of the machine body hole (6) and a rectangular column (30) of the upper support by means of the wall pressing oil cylinder (7) to perform up-down vertical reciprocating motion.

A multifunctional wall clamping device of a static piling machine comprises a wall clamping platform (1), a machine body (31), and a wall pressing device. A through machine body hole (6) is vertically provided in the center of the machine body (31). The wall pressing device is disposed on the machine body (31). The wall pressing device comprises a wall pressing oil cylinder (7) and a jacking oil cylinder (27). The wall pressing oil cylinder (7) is disposed on an upper support (25). The jacking oil cylinder (27) is disposed on a lower support (26). The wall clamping platform (1) comprises two horizontal U-shaped pincer-like boxes (2) identical in geometric size. Openings of the boxes are opposite, and the two boxes are arranged on the same axis to form a combination with a rectangular section. The top surface of the wall clamping platform (1) is hinged by a piston rod (8) of the wall pressing oil cylinder (7) and vertically suspended in the machine body hole (6). Rolling wheels (9) are mounted on the side walls of the periphery of the wall clamping platform (1), and act on the corresponding inner side walls of the machine body hole (6) and a rectangular column (30) of the upper support by means of the wall pressing oil cylinder (7) to perform up-down vertical reciprocating motion.