14results about How to "Reduce demolition" patented technology

The utility model relates to the technical field of reverse ridge building construction, in particular to a form-removal-free water-stopping reverse ridge which comprises a concrete floor, a water-stopping ridge platform is fixedly connected to the concrete floor, the water-stopping ridge platform is formed by assembling and then carrying out concrete pouring, and the water-stopping ridge platform comprises two water-stopping formworks on the outer side. The water stop formworks are fixedly connected to a concrete floor slab, a plurality of stirrups are fixedly arranged between the two water stop ridge platforms at equal intervals and reserved in the concrete floor slab, the two water stop formworks are fixedly connected through an adjustable connector, and concrete is poured between the two water stop formworks. And finally, when pouring is finished, the concrete and the water stop formwork form a whole, namely the formwork-removal-free water stop reverse ridge is formed, follow-up formwork removal is not needed, and simplicity and convenience are achieved.

The invention relates to the technical field of structural engineering construction, in particular to a construction method for protecting a steel member during staged implementation of a structural column, which comprises the following steps of: sleeving the periphery of the steel member with a protective sleeve; plastic plate inner formworks are erected on the inner side and the outer side of the protective sleeve, and the steel member is enclosed by the plastic plate inner formworks; pouring formworks are erected on the inner side and the outer side of the plastic plate, and certain distances are reserved between the formworks located on the inner side and the plastic plate and between the formworks located on the outer side and the plastic plate to form pouring spaces; and concrete materials easy to detach are poured into the pouring space to form the hollow-structure column head. The method has the advantages that concrete pouring in the middle area of the component and binding and dismantling of reinforcing steel bars for temporary fixing are reduced, so that the waste project amount is reduced, the project cost is saved, the construction period is shortened, a new thought is provided for effective protection of reserved long-term development reinforcing steel bars in the recent project implementation stage, the types of reserved reinforcing steel bar protection methods in projects are enriched, and the construction period is shortened. And a green construction concept is practiced.

This utility model discloses a structure for a secondary lining in a mined tunnel that also serves as a shield tunneling starting reaction device. It includes a first primary support, a first secondary lining inside the first primary support, a second secondary lining on the sides of the first primary support and the first secondary lining, mortar anchor bolts on the outer side of the second secondary lining, a second primary support outside the second secondary lining, a shield machine front face on the right side of the first primary support, fiberglass anchor bolts inside the shield machine front face, and a concrete island platform at the bottom of the inner wall of the first secondary lining. The unit price of concrete is much lower than that of steel, and by utilizing the stress characteristics of concrete, costs are saved. Using a reinforced concrete structure reduces the structural dimensions and working space of the steel support, avoiding large-scale excavation. Furthermore, the reinforced concrete ring beam can later serve as a permanent secondary lining structure, reducing subsequent demolition, cutting, and other procedures and labor costs, further saving costs.

The invention discloses a method for dismounting, lengthening and mounting tower crane booms of a super high-rise building in the air. The method comprises the following steps: adjusting the heights of two tower crane booms; fixing the direction of the tower crane; disassembling the main hook and the counterweight, and recovering the host steel wire rope; hoisting by a tower crane boom; the tower cap is tightened in the direction of the cargo boom; the cargo boom is dismantled; splicing and lengthening the cargo boom; mounting the cargo boom in the air, detecting and the like. According to the method, the tower body is not dismantled, the tower crane dismantling process is reduced, the construction period can be shortened, mechanical lease and labor cost are saved, the overall construction cost is remarkably reduced, meanwhile, damage of wind power to the cargo boom and a building is avoided by tying wind cables at the front end and the rear end of the cargo boom and conducting wind vibration swing traction, and the construction efficiency is improved. And the position of the cargo boom is adjusted through the precise hand-drive block, so that the cargo boom is ensured to be accurately butted to the position of the slewing bearing.

The utility model discloses a water pan with a movable guide rail, and aims to solve the problems that when a heat exchanger and a water baffle of an existing water pan are disassembled and maintained, the heat exchanger and the water baffle can only be lifted and then pulled out, a plurality of panels need to be disassembled, and the disassembly and maintenance difficulty is greatly increased. The water pan comprises a drainage pan, a drainage pipe is installed on one side of the drainage pan, water pan supporting pieces are installed on the front side and the rear side of the drainage pan, first coil pipe supporting pieces are installed on the left side and the right side in the drainage pan, and a second coil pipe supporting piece is installed in the middle of the drainage pan. The water pan of the n-shaped structure is integrally installed at the bottom of the air conditioner box, when the heat exchanger and the water baffle need to be disassembled, a panel on the non-maintenance side of the air conditioner box is disassembled firstly, the heat exchanger and the water baffle can be directly pulled out from the side face and installed in the same mode after being cleaned, disassembly, maintenance and installation are very convenient and rapid, and the maintenance efficiency is improved. Therefore, dismounting parts are reduced, and the heat exchanger and water baffle dismounting and maintaining efficiency is greatly improved.

The application discloses a dry quenching coke oven baking method, comprising the following contents: (1) canceling the gas baking, changing to the red coke baking, through controlling the coke loading speed, the coke discharging amount, the circulating air volume, the impact of the red coke on the masonry is reduced to the minimum; (2) increasing the cold coke loading amount before the baking, ensuring that the coke can be normally discharged in the early baking period, and eliminating the risk of suspended material; (3) through the fine adjustment of the circulating air volume, the low-pressure steam volume, the air introduction amount and the opening degree of each diffusion valve, the problem of uneven temperature rise caused by the steam pressure and temperature fluctuation in the warm air drying process is eliminated. After the application is implemented, the baking time of the dry quenching coke is shortened from the original 15 days to 8 days, the gas baking is cancelled, the gas consumption of 9 days is saved, the production time is further shortened, the risk of suspended material in the baking process is eliminated, and the whole process is more stable and smooth.

The application discloses a jacking device and a jacking method for a ship roll-on / roll-off device, and relates to the technical field of lifting of a ship roll-on / roll-off device. The jacking device for the ship roll-on / roll-off device comprises a plurality of support tools, a plurality of hydraulic jacking devices and a master control device. The plurality of tool supports are arranged at intervals on the two sides of the roll-on / roll-off device to be jacked up, the tool supports are fixedly connected with the roll-on / roll-off device, and the bottom of each tool support is provided with a positioning structure. The plurality of hydraulic jacking devices are arranged below each tool support, the top of each hydraulic jacking device is matched with the positioning structure, and each hydraulic jacking device is used for jacking up the roll-on / roll-off device. The master control device is used for controlling the synchronous jacking of the plurality of hydraulic jacking devices. The jacking device provided by the application can realize the jacking of the roll-on / roll-off device without welding temporary lifting lugs or opening process holes on the movable deck, effectively reduces the processes of lifting lug welding, removal, repair welding and process hole opening and plugging, significantly reduces the construction workload, and improves the ship manufacturing efficiency.

The utility model relates to a rapid reinforcing device for a cross beam of a converter flue transition carriage. The rapid reinforcing device comprises a plurality of groups of C-shaped hangers, each group of C-shaped hangers comprises two C-shaped hangers which are oppositely arranged, and the two C-shaped hangers are respectively arranged on the two sides of the cross beam of the transverse moving vehicle; each C-shaped hanger comprises a base plate structure and two C-shaped clamping plates; the lower sides of top plates of the two C-shaped clamping plates are fixedly connected with the upper surface of the base plate structure, the base plate structure is arranged on the upper surface of a lower flange of the traveling crane girder, bottom plates of the two C-shaped clamping plates are arranged on the lower surface of an upper flange of the transverse moving vehicle girder, and vertical openings of the bottom plates of the two C-shaped clamping plates are fixedly connected with a web of the transverse moving vehicle girder. By arranging the rapid reinforcing device, the cross carriage girder and the traveling crane girder can be rapidly fixed together, so that the cross carriage girder is reinforced when stand columns on the two sides of the front of a furnace below the cross carriage girder are dismounted, dismounting and displacement of related facilities during dismounting of a furnace body are reduced, and then the replacement time of the furnace body is shortened.

The present invention relates to the technical field of geotechnical foundation engineering, and discloses an assembled wall guide device for underground continuous wall construction and a method thereof, comprising two wall guide plates, which are symmetrically arranged, and the tops of the two wall guide plates are respectively provided with top grooves, and the bottoms of the two top grooves are penetrated by and slidably connected with vertical rods, and the tops of each vertical rod are fixed with lifting ears, and one side of the two vertical rods can be rotatably installed with a connecting rod, and the other side of the connecting rod is rotatably connected with a push rod, and the other end of the push rod is fixed with a connecting square plate, and the other end of the connecting square plate is fixed with a limiting plate, and one side of the two wall guide plates is provided with limiting grooves, and the wall guide plates can be fixed by the limiting grooves and the limiting plates, thereby enhancing the stability of splicing and alignment.

According to the extradosed cable-stayed bridge continuous beam integrated three-purpose support system structure and the construction method, steel pipe stand columns are arranged on the widened bearing platform foundations on the front side and the rear side of a pier body to serve as temporary consolidation supports, foundation treatment is reduced, the requirement for bearing capacity can be met, and in the temporary consolidation lengthening process, climbing cones and I-shaped steel are pre-buried in the pier body, so that the construction cost is reduced, and the construction efficiency is improved. The method comprises the following steps: forming a first-layer frame body for pier cap construction by a climbing cone and a temporary consolidation steel pipe upright post, lengthening the steel pipe upright post after pier cap construction is completed, laying I-shaped steel and a disc buckle bracket on the first-layer frame body to construct a second-layer bracket body of a 0 # block, firstly removing the 0 # block frame body after the 0 # block construction is completed, and then removing the frame body of the pier cap through a discharging block. And finally, only the steel pipe stand columns are reserved for temporary consolidation of hanging basket construction. The problems that according to a traditional method, construction of pier caps and 0 # blocks is difficult to complete through a conventional support system, and no temporary consolidation space exists are solved. Belongs to the field of extradosed cable-stayed bridge construction.

The utility model discloses a multi-loop narrow-base power transmission tower which comprises a tower body, and the tower body comprises a tower body with a space frame structure and tower legs arranged at the bottom of the tower body. The top ends of the reinforcing beams are connected to the tower body, the bottom ends of the reinforcing beams are connected to the tower legs, the top ends of the reinforcing beams are converged at one point, and the bottom ends of the reinforcing beams are radially diffused in the direction away from the axis of the tower body; by changing the tower body structure and adjusting the proportion of the iron tower root distance to the tower height, the occupied area of the steel tube tower is reduced, the problems that a conventional iron tower is large in occupied area and large in material consumption are effectively solved, the width of a line corridor is reduced, and therefore land resources and steel resources are saved, demolition and vegetation damage are reduced, and the construction cost is reduced. And resource saving and environmental protection are facilitated.

This invention belongs to the field of DC grounding electrode technology, and specifically relates to a tree-shaped DC grounding electrode for smart grids and its design method. The technical solution is as follows: A tree-shaped DC grounding electrode for smart grids includes an electrode comprising a straight electrode trunk, several straight electrode branches located near the trunk, and an annular end electrode located near the other end of each straight electrode branch, with each branch corresponding to an annular end electrode; it also includes a central device or grounding electrode line terminal tower. The electrode is divided into several segments, each segment connected to a feeder cable, which is connected to the central device or grounding electrode line terminal tower via a conductor. This invention provides a tree-shaped DC grounding electrode for smart grids and its design method, ensuring the current discharge effect of the electrode while avoiding problems such as the need for large-scale demolition due to the surrounding of numerous buildings caused by the annular electrode arrangement.

The utility model provides a drum wall cleaning device for a wind power generation tower, and belongs to the technical field of cleaning devices. Comprising a cleaning frame, a cleaning plate is arranged in the cleaning frame, and a water tank assembly, a fixing frame, a heating plate, a heat insulation plate and a high-pressure water pump are arranged on the upper surface of the cleaning plate. The clamp is arranged to be in butt joint with the water pipe and fixed to one end of the water tank pipe, treated cleaning hot water is added into the cleaning water tank, the heating plate is started to heat and preserve heat of the cleaning hot water in the cleaning water tank, and the unmanned aerial vehicle motor enables the unmanned aerial vehicle fan blades to rotate to drive the unmanned aerial vehicle body to fly and move. The high-pressure water pump pumps cleaning hot water and sprays the cleaning hot water through the cleaning spray head at one end of the spray head pipe for cleaning, the cleaning hot water is used for cleaning the drum wall of the wind power generation tower, the hot water can quickly dissolve mixed stains such as mechanical oil stains accumulated on the drum wall, and the high-pressure hot water can physically peel off various sticky stains. Through the sensor on one side of the cleaning water tank, people can know whether cleaning hot water exists in the cleaning water tank.

This invention discloses a scaffold for shipbuilding, comprising a frame structure, a transverse support plate, casters, and diagonal bracing modules. The frame structure includes multiple spaced vertical members, multiple spaced transverse members, and a two-way stabilizing module. The vertical and transverse members are erected to form the frame structure, and are securely connected via the two-way stabilizing module. The transverse support plate is mounted on the transverse members. Casters are connected to the bottom of at least the vertical members located at the corners of the frame structure. The diagonal bracing module includes two diagonal bracing assemblies, which can apply opposite forces in the transverse direction to two vertical members. Each diagonal bracing assembly has a first end and a second end; the first end is connected to the corresponding vertical member, and the second end is connected to the external mounting surface of the scaffold. This scaffold can reduce the total time spent erecting and dismantling scaffolds during shipbuilding, thereby improving shipbuilding efficiency.