38results about How to "Enhanced pull-out load bearing performance" patented technology

The invention belongs to a reusable die for an equipment foundation reserved square hole. The reusable die for the equipment foundation reserved square hole is characterized by comprising a central shaft, a first opening and shrinking device, a second opening and shrinking device, four corner die plates and four middle die plates, wherein the middle die plates are inserted between the corner die plates on the same side, the four corner die plates and the four middle die plates can enclose a square space, and the inner sides of the four corner die plates are all provided with two die plate supports; both the first opening and shrinking device and the second opening and shrinking device are arranged on the central shaft, first die plate supports of the four corner die plates are all articulated with the first opening and shrinking device, and second die plate supports of the four corner die plates are all articulated with the second opening and shrinking device; and the lower part of the central part, the first opening and shrinking device and the second first opening and shrinking device are all positioned in the square space enclosed by the four corner die plates and the four middle die plates. The die is simple to operate and can be quickly disassembled and reused.

This invention relates to a method for constructing a circular hole of an anchor bolt reserved by equipment foundation, which comprises the following steps: step 1, assembling a mould; step 2, bracing the mould; step 3, pouring concrete; step 4, detaching the mould and leaving a circular hole; and step 5, cleaning the hole so as to obtain the circular hole of the anchor bolt reserved by the equipment foundation, wherein the mould for reserving the circular hole by the equipment foundation comprises a central shaft, a first opening and contracting device, a second opening and contracting device, four templates, four gap filling boards; the four templates are arc-shaped and are evenly distributed along a circumference; the gap filling boards are inserted between the templates; and a cylindrical space is enclosed by the four templates and the four gap filing boards. The method disclosed by this invention is characterized by simple operation and quick mould detachment; and the mould can be reused.

The invention relates to a round hole die of an equipment base pre-reservation anchor bolt hole, in particular to an equipment base pre-reservation round anchor bolt hole die, which is characterized in that the equipment base pre-reservation round anchor bolt hole die comprises a center shaft, a first bracing and shrinking device, a second bracing and shrinking device, four templates and four joint sealing plates, wherein the four templates are all in an arc shape and uniformly distributed along a circumference, each joint sealing plate is inserted between two adjacent templates, the four templates and the four joint sealing plates enclose to form a cylindrical space, first template supports on the four templates are all articulated to the first bracing and shrinking device, second template supports on the four templates are all articulated to the second bracing and shrinking device, the lower part of the center shaft, the first bracing and shrinking device and the second bracing and shrinking device are all arranged in the cylindrical space enclosed by the four templates and the four joint sealing plates, the upper part of the center shaft is arranged above the cylindrical space and is provided with outside threads, and a handle is arranged at the upper end of the center shaft. The die is simple to operate and rapid to disassemble and can be used repeatedly.

The invention discloses a mold for forming variable-section piles. The mold cavity of the mold forms at least one regular polygonal thick hole section and at least one regular polygonal fine hole section along the length direction, and the regular polygonal thick hole section and the regular polygonal thick hole section The regular polygon fine hole section is connected; wherein, the hole wall of the regular polygon fine hole section is provided with at least one groove; the mold is in the cross section of the regular polygon coarse hole section, and the hole wall reaches the mold The shortest linear distance of the central axis is D1; ​​the mold is in the cross-section of the regular polygon fine hole section, the shortest linear distance from the hole wall to the central axis of the mold is D2, and the difference between D1 and D2 is greater than The groove depth of the groove. The mold for forming variable-section piles has the advantage of simple structure, and can meet the requirements of forming variable-section piles with better pullout resistance and bearing performance.

The invention relates to a construction method of a preserved foundation bolt hole of an equipment foundation. The construction method is characterized by comprising the following steps of: 1, assembling a mould, wherein the mould comprises a center shaft, 2-4 spreading and contracting devices, 8 templates and an upper plate, every two templates are positioned on one side, the 8 templates are enclosed to form a square, the 2-4 spreading and contracting devices are positioned in a square cavity formed by enclosing the 8 templates, the lower end of the center shaft penetrates through the 2-4 spreading and contracting devices, a handle is welded on the upper end of the center shaft; 2, erecting the mould; 3, pouring concrete; 5, dismantling the mould, preserving a hole; and 5, cleaning the hole: galling the concrete surface around the hole by using an iron hook or steel brush, cleaning waste in the hole, and sealing the hole to obtain the preserved foundation bolt hole of the equipment foundation. The construction method is simple; and the used mould is simple in operation and high in template-dismantling speed, and can be repeatedly used.

The invention relates to a construction method of an equipment base pre-reservation square hole, in particular to a construction method of an equipment base pre-reservation anchor bolt square hole, which is characterized by comprising the following steps that, firstly, a die is assembled; secondly, the die is erected: the size of an upper hole of the die of the equipment base pre-reservation square hole, which can be repeatedly used, is regulated according to a drawing, a fourth locating nut is unscrewed, a second sliding regulation seat moves downwards so that the rectangular size of the upper hole of an angle template is reached, a second locating nut is unscrewed, a first sliding regulation seat moves downwards so that the rectangular size of a lower hole of the angle template is reached, the third locating nut and a first locating nut are screwed, and a plastic film or an adhesive tape wraps on the outer walls of the angle template and a middle template as a protective layer; thirdly, concrete is poured; fourthly, the template is disassembled, the angle template is extracted, a wood bottom plate is lifted out, and a square hole is left; and fifthly, the hole is cleaned, and the equipment base pre-reservation anchor bolt square hole is acquired. The construction method has the advantages that the operation is simple, die stripping is rapid, and the die can be repeatedly used.

The invention discloses a great-diameter variable section irregularly-shaped resistance-increased steel pipe pile system, which comprises an offshore work platform. Lifting equipment and a high-pressure pump are arranged on the offshore work platform. The high-pressure pump is connected with a plurality of high-pressure injection pipes on the inner wall of a steel pipe pile. A pile cap is arranged at the top end of the steel pipe pile. A vibratory hammer connected with the lifting equipment is arranged on the upper part of the pile cap. A slurry pump bracket is arranged in the steel pipe pile. A slurry discharge pipe is supported on the slurry pump bracket. The lower part of the slurry discharge pipe is connected with a slurry pump, and the upper part of the slurry discharge pipe is communicated with a slurry discharge opening in the lateral surface of the steel pipe pile. The invention also discloses a construction method for the great-diameter variable section irregularly-shaped resistance-increased steel pipe pile system. The great-diameter variable section irregularly-shaped resistance-increased steel pipe pile system and the construction method thereof are adapted to various kinds of foundation engineering with special technical requirements on the pressure resistance, pulling resistance, bending resistance and the like of pile foundations, particularly to a large-sized single body structure of offshore engineering such as a bridge pier and an offshore wind turbine, and have the characteristics of convenience for construction, low construction cost, easy control over construction quality, and the like.

The invention relates to a reusable mould for basic foundation bolt holes of large-scale equipment. The reusable mould for the basic foundation bolt holes of the large-scale equipment is characterized by comprising a central shaft, 2 to 4 spreading and contracting devices and 8 templates; every two templates are positioned on one side, and the 8 templates define a square; the 2 to 4 spreading and contracting devices are positioned in the square cavity defined by the 8 templates; the lower end of the central shaft passes through the 2 to 4 spreading and contracting devices, and a handle is welded at the upper end of the central shaft; each spreading and contracting device comprises an inner link rod seat, an outer link rod seat, a movable link rod, a middle connecting hinge and a corner connecting hinge; the inner end of the movable link rod is hinged with the inner link rod seat, the outer end of the movable link rod is hinged with the outer link rod seat, and the outer link rod seat is welded and fixed with the middle connecting hinge; and the two adjacent templates positioned on the same side are hinged by the middle connecting hinge, and the two templates at a corner of two adjacent edges are hinged by the corner connecting hinge. The reusable mould is simple to operate, can be quickly dismounted and can be used repeatedly.