31results about How to "Easy connection and construction" patented technology

The invention discloses a deck penetration piece for a ship pipe, which includes a penetration steel pipe, a flange, a sleeve and a web, wherein the sleeve is mounted and fixed on the penetration steel pipe in a sleeving manner, an air thermal insulation layer with uniform thickness is arranged between the sleeve and the penetration steel pipe, and the deck penetration piece is plated with corrosion-resisting nonferrous metal. The invention provides a penetration method of the deck penetration piece for the ship pipe, and the method comprises the steps as follows: (1) the deck penetration piece is manufactured, the sleeve is arranged at the middle part of the penetration steel pipe in a sleeving manner and is positioned through spot welding, the flange is welded, and the deck penetration piece is wholly plated with corrosion-resisting nonferrous metal; and (2) the deck penetration piece is mounted, a line is drawn on a deck and a hole is formed, the axis of the deck penetration piece is perpendicular to a corresponding hull reference plane, the deck penetration piece is completely welded with upper and lower sides of the web firstly, and then the web is completely welded with the hole formed on the deck. According to the invention, the deck penetration piece is provided with a simple structure and is convenient to manufacture. The penetration method provided by the invention does not damage the plating layer on the inner wall of the penetration steel pipe, and the attractive effect of horizontal-vertical connection between the deck penetration piece and the ship pipe can be achieved.

The invention discloses a construction method for a subsea tunnel. The construction method is characterized in that several horizontally arranged water draining pipelines and a vertically arranged connecting column are preinstalled on a base of a tunnel body, floating rings are arranged at the front and back ends of the tunnel body, and sealing rings are formed on the end portions of the floatingrings; outer connecting rings are annularly arranged on the outer portions of the sealing rings, inner connecting rings are arranged annularly in the sealing rings, and several uniformly distributed bolt holes are formed in the outer connecting ring and the inner connecting ring; sealing walls used for sealing the tunnel body are further arranged at the two ends of the tunnel body and are detachably connected with the tunnel body. The construction method has the advantages that under the sealing effect of the sealing wall, in the process of laying the tunnel, in order to avoid that sea water is poured into the tunnel, when each tunnel prefabricated piece is laid, construction for the inside of the tunnel can be directly conducted in the tunnel, laying and construction are conducted synchronously, parts of the tunnel can also be pre-arranged in advance and then subjected to sinking laying, and the work efficiency of construction is greatly improved.

The invention discloses a T-shaped groove-based socket connection structure and a construction method thereof, wherein the construction method includes the steps of: a. cast-in-place or prefabricated caps, so that the upper port of the caps forms a T-shaped longitudinal section; For the notch, the first shear reinforcement protruding upward is pre-embedded on the bottom wall of the cap corresponding to the large opening, and the first tensile steel bar protruding toward the center of the large opening is pre-embedded on the side wall of the cap corresponding to the large opening, prefabricated for inserting For the pier column installed in the notch, the second tensile steel bar protruding to the outside of the pier column is pre-embedded on the side of the pier column; b. Lay a grouting material leveling layer on the bottom wall of the cap corresponding to the small opening, insert the pier column Erection in the notch; c, adjust the plane coordinates, elevation and verticality of the pier column; d, connect the first tensile steel bar and the second tensile steel bar through the tensile connecting steel bar; e, pour concrete in the notch, which is based on The T-slot socket connection structure and its construction method aim to solve the technical problems of the existing socket connection structure with poor durability and anti-seismic performance.

The invention provides a method for coaxially connecting two FRP reinforcements by an FRP connecting pipe and an expansive cement, comprising the following steps of respectively perforating two reinforcements to be connected with coaxial holes, coaxially connecting and positioning the two reinforcements by an FRP extruding / pulling rod or a wire rope, sheathing a section of FRP connecting pipe at the joint of the reinforcements; carrying out coaxial positioning by a positioning ring at two ends of the connecting pipe; arranging a pouring opening or an air outlet on the positioning ring during horizontal pouring process and injecting expansive cement solution between the reinforcements and the connecting pipe by the pouring opening; needing not to arrange the pouring opening or the air outlet on the positioning ring during vertical pouring process, firstly installing and then sealing the lower positioning ring; putting the upper sealing ring in place after completing pouring the cement solution to beexpanded from the upper opening along the wall of the FRP connecting pipe, thus ensuring the coaxiality of the reinforcements and the sheathed pipes. The hardening time of the expansive cement is 6-12 hours generally. The FRP pipe can be prefabricated, the quality thereof is easy to be controlled, the cost of the expansive cement is low, the connection construction is simple and convenient, and the connecting part prepared by the expansive cement has light weight, high strength and corrosion resistance and can be used for structures with demagnetization requirements.

The invention relates to a telescopic steel bar connection kit, the main body of which includes a two-way screw sleeve, a forward screw seat, a reverse screw seat, a screw joint, a one-way screw sleeve and a pin shaft; one end of the two-way screw sleeve The inner thread of the thread is consistent with the inner thread of the one-way thread sleeve, and the outer thread of the forward screw seat, screw joint and steel head pier is consistent; each part in the kit can be organically combined, such as adding or subtracting Parts, for the butt connection of two steel bar heads with different spacing, and provide a kit for the connection of steel bar heads at the construction site. The combination method is flexible. According to the requirements of the steel bar spacing, it can reduce the number of parts to form a short-distance connection, and can also increase the number of parts in series to meet the needs of long-distance connections. With the help of two-way threaded sleeves, it can achieve tension and eliminate connection gaps; the connection is reliable, no The amount of deformation can meet the stress design requirements, and it is suitable for the connection of two steel bar heads with dislocation and different angles, which greatly facilitates the construction of steel bar connection.

The invention discloses a segment longitudinal seam connecting assembly, a tunnel segment structure and a construction method. The segment longitudinal seam connecting assembly comprises a longitudinal seam male part and a longitudinal seam female part, wherein the longitudinal seam male part comprises a gradient section cylinder, a connecting plate and a base, one end of the connecting plate is fixedly connected to the side face of the gradient section cylinder, and the other end of the connecting plate is connected with the base; the longitudinal seam female part comprises a front section and a rear section, a gradient section cylindrical cavity matched with the gradient section cylinder is formed in the front section, a through hole matched with the connecting plate in shape and size and communicated with the gradient section cylindrical cavity is formed in one end, away from the rear section, of the front section, the longitudinal seam female part is wholly pre-buried into a segment, a groove capable of containing the longitudinal seam male part is formed in the segment, and the longitudinal seam female part is located at one side of the groove. The tunnel segment structure has certain tolerance capacity, is adaptive to construction environment and capable of achieving simultaneous butt joint of segments in the longitudinal and circumferential directions, and has the advantages of being fast and convenient to construct and easy to construct automatically.

The invention discloses a segment circular seam connection component, a tunnel segment structure and a construction method. The segment circular seam connection component comprises a circular seam convex part and a circular seam concave part, and the circular seam convex part and the circular seam concave part are pre-embedded in two segments requiring circular butt joint. The circular seam convex part comprises a head portion, a neck portion and a tail portion in sequential connection, an outer diameter of the head portion is larger than that of the neck portion, and the neck portion is connected with the tail portion through a universal joint. The circular seam concave part comprises a front portion and a rear portion, the front portion and the rear portion are connected with each other, the front portion is internally provided with an inner cavity, one end, away from the rear portion, of the front portion is provided with an opening communicated with the inner cavity, a plurality of slider mechanisms are arranged around the opening of the front portion, and an inner diameter of the opening is larger than an outer diameter of the head portion. The segment circular seam connection component has an allowance performance and is adaptive to construction environments and capable of meeting the requirements on stress, deformation and water resistance in construction and use of lining segments 1. In addition, simultaneity in longitudinal and circular butt joint of the segments can be realized, and quickness and convenience in construction, easiness for mechanization and automation in construction are achieved.

The invention relates to a construction method for slope protection with a concrete arched skeleton, comprising the steps of: 1) construction preparation; 2) preparation of prefabricated components; 3) preparation of an integrated skeleton formwork; 4) excavation of skeleton laying grooves; 5) construction of edge connecting beams; 6) ) Sliding hoisting structure installation; 7) Prefabricated arched skeleton slope protection construction; 8) Prefabricated step installation; 9) Cast-in-situ arched skeleton slope protection construction. The beneficial effects of the present invention are: the present invention is respectively between the first straight mold and the second straight mold of the integrated skeleton template, between the third straight mold and the fourth straight mold, and between the first arc mold and the second arc mold. The mold top cover plate is set between the middle, the third arc mold and the fourth arc mold, which can simultaneously meet the functions of concrete pouring and integrated skeleton formwork reinforcement; guide sides are respectively set on both sides of the fourth straight mold of the integrated skeleton formwork The board can reduce the difficulty of installing and positioning the integrated skeleton formwork.