摘要:
The invention relates to a method of building a foundation (1) comprising a steel monopile (2) and a precast concrete part (3) on top of the monopile (2), comprising:—arranging a support structure (12) inside the monopile (2), the support structure (12) having a plurality of rods (16) extending radially with respect to a longitudinal axis of the monopile;—bringing the concrete part (3) above the monopile (2), with supporting columns (13) interposed between the support structure (12) and the concrete part (3), wherein reinforcement bars (14) protruding from a bottom surface (9) of the precast concrete part (3) extend downwardly beyond the support structure (12) by passing between the rods (16) of the support structure (12);—arranging tendons (15) between the support structure (12) and the concrete part (3) and tensioning the tendons (15); and—pouring concrete into an upper part of the monopile (2).
摘要:
There is provided a screwed steel pile, the end portion of which is open, characterized in that: an apparent resistance at the pile end portion of the pile is reduced when the ground strength is suddenly increased, so that the pile can be easily penetrated into the ground and an intensity of the finally obtained bearing capacity of the pile is high. The specific means is that a pile end portion of the pile body composed of a steel pipe or a hollow pipe made of another material is made open, and one or a plurality of wings are provided on the outside of the pile end portion of the pile body. The pile end portion of the wing may be protruded downward from a pile end face of the pile body. There is provided a method of construction management for managing the construction of a screwed steel pile having one or a plurality of wings on the outside face of the lower end portion of the pile, comprising the steps of: finding penetrative resistance Rp of a bottom plate portion in the process of construction from the balance between inputted energy, which has been inputted to the pile top portion, and consumed energy which has been released from the bottom plate portion; and controlling to continue and/or complete penetration of the screwed steel according to an intensity of penetrative resistance while the penetrative resistance Rp is being found.
摘要:
An inner cylinder (2), through which a tremie pipe (16) for concrete pouring can be inserted freely, is surrounded by an outer cylinder (3) with a predetermined space therebetween, and a cap body (A) in the form of a dual cylinder is formed by attaching an annular roof plate (1) to the upper ends of both cylinders (2, 3) and an annular bottom plate (6) to the lower ends of both cylinders. Further, a plurality of holes (8) for main pile reinforcements are formed in the bottom plate (6) of the cap body (A) at preset intervals, and holes (5, 9) for discharge of liquid and gas are formed in the roof plate (1) and the bottom plate (6).
摘要:
The present invention relates to a foundation structure vertically installed on the ground, and comprising: an upper support layer 10 formed on the ground in the vertical direction; and a lower support layer 20 formed so as to extend downward from the upper support layer 10 and such that the width thereof is less than that of the upper support layer 10. The disclosed upper support layer 10 and the lower support layer 20 are structures formed from soil solidified by means of feeding and mixing an earth and soil-solidifying agent therein, and therefore are efficient and prevent overload due to boring equipment.
摘要:
The present invention relates to a foundation structure vertically installed on the ground, and comprising: an upper support layer 10 formed on the ground in the vertical direction; and a lower support layer 20 formed so as to extend downward from the upper support layer 10 and such that the width thereof is less than that of the upper support layer 10. The disclosed upper support layer 10 and the lower support layer 20 are structures formed from soil solidified by means of feeding and mixing an earth and soil-solidifying agent therein, and therefore are efficient and prevent overload due to boring equipment.
摘要:
The object of the invention is an offshore foundation structure, the shell structure (1) of which is thin in relation to the diameter of the structure, and the shell structure (1) is filled with soil (7), and that the braced ring footing (2) is the plane of the bottom of the foundation structure, the braced connection plate (6) for the structures above the water surface (4), and longitudinal and/or transverse bracings (5) for the shell structure (1) are connected to the shell stucture (1).
摘要:
A method and a fixture assembly for casting a foundation for a tower (16), in particular for a wind turbine, providing a high quality contact surface for the bottom flange (15) of the tower (16) is disclosed. The method comprises the positioning a plurality of anchoring rods (2) in a ground excavation and of a fixture assembly at an upper end of the excavation so that the anchoring rods (2) extend through openings in a fixture plate (1), which is fully supported by at least three pull-off means (4) above the fixture plate (1) and each engaging with the upper end of four anchoring rods (2). Liquid concrete (17) is poured into the excavation to a horizontal level so that the fixture plate (1) is partly submerged in the concrete (17), and after hardening, the fixture plate (1) is pulled off from the concrete (17) by means of the pull-off means (4), leaving a recess formed in the concrete (17) being suitable for receiving a bottom flange (15) of the tower (16).
摘要:
A pin pile is disclosed for anchoring sections of sheet pile to form a wall structure. The pin pile has a casing with a plurality of external clutches formed around the periphery. In use other corresponding clutches on the sections of sheet pile can interlock with the external clutches of the pin pile over a range of angles in accordance with a directional extent of said wall structure.