5results about How to "Small construction impact" patented technology

The invention relates to the technical field of reservoir desilting, and discloses a water recession structure for a sand-rich reservoir green dredging and silting area, the water recession structure comprises a desilting structure, a water recession structure and a water returning structure, the desilting structure comprises a separation embankment and cofferdams, a desilting basin is defined by the cofferdam and the separation embankment on one side, and the water recession structure comprises a vertical shaft type water recession opening, a water recession pipe and a stilling basin; the water recession structure is used for draining water in the silt area and limiting the water level at a certain height, the water return structure is used for enabling recession water of the stilling pool to flow back into a reservoir for desilting construction, and the water return structure comprises a water recession channel. According to the water recession structure for the green dredging silt area of the sand-rich reservoir, through the arrangement of the vertical shaft type water recession opening, the stilling pool and the anti-seepage wall, water in the silt area can be rapidly filtered and discharged, the water level in the silt area can be controlled, seepage can be effectively prevented, the sand content of recession can be effectively controlled, and the stability of the cofferdam is ensured; according to the water recession structure for the green dredging and silting area of the sand-rich reservoir, a large number of detachable prefabricated parts are used, the structure is simple, and operation is convenient.

The application discloses a device and method for removing offshore wind power steel pipe piles under deep water conditions, which comprises a supporting device and a counterforce device, a hydraulic jack is installed between the supporting device and the counterforce device, the supporting device is used for providing jacking support force for the hydraulic jack, and the counterforce device is used for providing jacking counterforce for the hydraulic jack after being fixedly connected with a steel pipe pile to be removed. The device is simple in structure, does not need to use a high-pressure system during construction, greatly reduces construction difficulty, has little influence of the environment on construction during construction, does not need to consider the influence of the rising and falling tides on construction during the whole construction process, is convenient for construction progress management and control, and can greatly shorten the construction period.

The utility model relates to a kind of supporting structures, belong to building construction technology field, specifically a structure unilateral supporting structure, including being set in inclined throw support foundation of first pouring bottom plate upper, the inclined throw support foundation is provided with lattice column inclined throw support, the lattice column inclined throw support covers on reserved island, still include the column top embedded plate being set in the top of lattice column inclined throw support, the top of lattice column inclined throw support is connected with public wall by column top embedded plate;Column bottom embedded plate being set in the bottom of lattice column inclined throw support, the bottom of lattice column inclined throw support is connected with inclined throw support foundation by column bottom embedded plate;The utility model has the advantages of convenient construction, effectively avoid the deformation of existing structure, little influence to new structure construction, construction period is short etc.;Solved the problem of not affecting new structure and existing structure to carry out structure connection while unilateral earthwork excavation is ensured that existing structure does not occur serious displacement in existing structure side, public outer wall.

The utility model discloses a bypass valve group structure of a steam valve, which comprises a pipeline, the steam valve arranged on the pipeline and drain tanks arranged on two sides of the steam valve, drain pipes connected with the pipeline are arranged in the drain tanks, a bypass pipeline is connected between the two drain pipes, and a bypass valve group is arranged on the bypass pipeline. The steam valve bypass pipeline is novel in design and simple in structure, the steam valve bypass pipeline is designed through the drain tank on an existing steam pipe network, the influence of bypass pipeline construction on the steam pipeline is avoided, steam supply is not influenced during construction, the integrity of the steam pipeline is kept, and the safety risk of steam pipeline operation is reduced.

The invention discloses an operation station anti-floating reinforcing structure and a construction method, and belongs to the technical field of underground engineering. The structure comprises a construction fence, a retention wall, a station side wall with a breaking range, a fender post structure, a permanent and temporary combined anti-floating component, a rubber water stop strip and an I-steel temporary support, and a reinforcement cage of the permanent and temporary combined anti-floating component is connected with a fender post main reinforcement and a main body structure side wall reinforcement in an anchoring manner to form a cooperatively stressed anti-floating system; the method comprises the steps that a construction fence and a retention wall are arranged; grouting pipes are driven to stop water, holes are explored and dug for verification, station side walls are broken in a bin-by-bin and segmented mode, and I-shaped steel is erected; a rubber water stop strip is plugged in; and a fender post structure is broken, a reinforcement cage is bound, concrete is poured, and construction is completed. Reliable connection is established between the station main body structure and the enclosure structure, and the floating risk caused by underground water rising is reduced; construction in the station in the whole process reduces the influence of earth surface enclosure and traffic relief, and reduces the influence on pipelines at the top of the station.