6results about How to "Realize the construction" patented technology

The invention discloses a sub-cofferdam construction method for cross-sea tunnel construction, which comprises the following steps: S1, constructing a first sub-cofferdam, reserving a first channel, and constructing a first sub-cofferdam tunnel in the first sub-cofferdam; s2, after tunnel construction of the first sub-cofferdam is completed, the first sub-cofferdam is divided into a connecting area and a navigation channel area through steel sheet piles; s3, the cofferdam structure of the channel area is dismantled to form a second channel; s4, a second sub-cofferdam is constructed, and the second sub-cofferdam is made to communicate with the connecting area; s5, a second sub-cofferdam tunnel is constructed, and the second sub-cofferdam tunnel communicates with the first sub-cofferdam tunnel; and S6, the second sub cofferdam structure is dismantled. By the adoption of the scheme, it is guaranteed that a channel is always reserved between the two islands during construction, normal operation can be achieved, and meanwhile the tunnel can be conveniently constructed in the first sub-cofferdam and the second sub-cofferdam in an open excavation mode.

The application discloses a combined supporting device of anchor rod and section steel, which comprises a supporting section steel, a first arc-shaped plate, a second arc-shaped plate, a reinforcing anchor rod and a supporting anchor rod; the first arc-shaped plate is arranged directly above the second arc-shaped plate, the second arc-shaped plate is supported on the floor of a roadway through the supporting section steel, and a waist-shaped groove is formed on the second arc-shaped plate along the circumferential direction of the arc surface of the second arc-shaped plate; the upper end of the supporting anchor rod is fixed on the first arc-shaped plate, and the lower end of the supporting anchor rod slides in the waist-shaped groove along the circumference of the second arc-shaped plate; and the reinforcing anchor rod is arranged on the lower side of the first arc-shaped plate. The application further discloses a combined supporting system and a combined supporting method based on the combined supporting device of anchor rod and section steel. The combined supporting device of anchor rod and section steel has high shearing capacity and high bearing capacity, improves the roadway supporting strength, and improves the supporting capacity.

The invention relates to the technical field of bridge engineering construction, in particular to an all-directional adjustable curved surface special-shaped tower creeping formwork and a construction method. Comprising a space linear climbing system, an all-dimensional curved surface special-shaped structure formwork adjusting device, a linkage adjusting climbing frame construction platform and an inner formwork telescopic type steel-wood combined formwork, and the space linear climbing system comprises a triangular bearing platform and a climbing track; the omni-directional curved surface special-shaped structure formwork adjusting device is composed of a movable track, an inclined strut adjusting rod, a supporting back ridge and a set-shaped steel formwork. According to the creeping formwork, dynamic adaptability and modular adjustment can be achieved, it is ensured that the aerial work platform is always horizontal, and the falling risk is greatly reduced; through a mechanical adjusting device, construction of a complex three-dimensional curved surface can be achieved with high precision; the tedious process of repeated dismounting and changing and new formwork manufacturing in a traditional method is avoided, and the construction efficiency is improved; due to the tailorability of the steel-wood combined formwork and the adjustability of the system, the material cost is saved.

The invention relates to the technical field of wind power generation, in particular to a wind power concrete tower low-temperature hoisting construction heat preservation device and method.The wind power concrete tower low-temperature hoisting construction heat preservation device comprises a top frame, the top frame is used for covering the upper end face of a whole-ring barrel section, and a covering layer and an observation area are formed on the top frame; the covering layer is provided with a hoisting hole for the hoisting point to pass through; the top frame is further connected with a plurality of heat preservation enclosures which fall downwards, the adjacent heat preservation enclosures are connected to form a cylindrical enclosure structure, a heating cavity is formed in the enclosure structure, and the whole-ring shell ring is covered with the heating cavity. The heat preservation device further comprises a heating source used for maintaining the temperature in the heating cavity. By means of the heat preservation device and the construction method, the whole-ring shell ring can be wrapped and covered, a heating cavity is formed to heat the interior of the whole-ring shell ring, a proper temperature environment is provided for curing reaction of curing glue, and therefore assembly construction of the whole-ring shell ring is achieved, and concrete tower construction under the low-temperature condition is achieved.

The application relates to the technical field of pond culture, in particular to a movable culture solid-liquid separation device, which comprises a pond body, a fish bait feeder is arranged at the bank of the pond body, a lifting fence is arranged in the pond body, the lifting fence comprises a plurality of lifting rods, a canvas is arranged on the outer sides of the lifting rods, the canvas forms a feeding area, and a collecting mechanism for collecting fecal sludge is arranged in the feeding area. The application has the effect of facilitating centralized cleaning of fish feces.