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50results about How to "Effective reinforcement" patented technology

Construction method of lock chamber deep foundation pit

The invention relates to a construction method of a lock chamber deep foundation pit, which adopts a waterproof steel frame pressing and fixing mode and a bottom drainage channel centralized pumping drainage mode, can efficiently centralize and guide water in the foundation pit to be drained, and improves the drainage reliability and efficiency. The problem that the excavation face of the foundation pit is softened and disintegrated when encountering water is effectively solved, and it is guaranteed that the excavation face is stable and water is discharged in time; the movable protection platform is adopted, effective safety protection can be provided in the blasting operation process, the safety of constructors is improved, and risks in the construction process are reduced; by adopting the reinforcing mesh integral channel steel pressing and fixing connection structure, the rock slope can be effectively supported and reinforced, the stability of the slope is improved, and in addition, the integral connection mode is also beneficial to improving the construction efficiency and quality.
Owner:ANHUI WATER CONSERVANCY DEV CO LTD

UHPC (Ultra High Performance Concrete) based on carbon nanotube modified aggregate as well as preparation method and application of UHPC

The invention discloses UHPC based on carbon nanotube modified aggregate and a preparation method and application thereof, and belongs to the technical field of novel building materials. The raw materials comprise 1417 to 1517 parts of cement, 135 to 165 parts of silica fume, 35 to 43 parts of steel fiber, 800 to 1000 parts of sintered bauxite aggregate, 4.22 to 10.56 parts of carboxyl functionalized carbon nanotube, 410 to 510 parts of water and 6 to 12 parts of a water reducing agent; wherein the sintered bauxite aggregate is modified by carboxyl functionalized carbon nanotubes. The chemical reaction of oxygen-containing functional groups (carboxyl) in the carboxyl functionalized carbon nanotubes is utilized to form covalent bonds, the hydration reaction in cement is catalyzed and promoted, and the carboxyl functionalized carbon nanotubes provide more nucleation sites, so that the microstructure of the cement-based material is improved, and the integrity of the cement-based material is improved.
Owner:SHANDONG UNIV

Smart urban road illuminating lamp for urban traffic

The invention relates to the technical field of road illuminating lamps, and discloses a smart urban road illuminating lamp for urban traffic, which comprises a supporting rod, the bottom of the supporting rod is fixedly connected with a base, the surface of the supporting rod is fixedly connected with an electric push rod, and the end part of the supporting rod is fixedly connected with a lamp holder. And an illuminating lamp is fixedly connected to the inner wall of the lamp holder, and a protective cover is fixedly connected to the end of the supporting rod. By arranging the protection mechanism, firstly, an electric push rod is started to push a right-angle rod to move downwards, when the right-angle rod moves downwards, a merging rod is pulled to move downwards, when the merging rod moves, a driven rod is driven to move in the direction close to each other, and when the driven rod moves, a sliding frame is driven to move in the direction close to each other on the inner wall of a sliding groove plate; when the sliding frame moves, the limiting rods are pushed to move in the direction close to each other and contract, and when the sliding frame moves, the pushing blocks are pushed to move in the direction close to each other.
Owner:河南睿光新能源科技有限公司

Self-adaptive pulp shooting machine for uneven inner wall of vertical shaft

ActiveCN119641350ASolve spraying difficultiesuniform coverageShaft liningAutomatic controlProcess engineering
The invention relates to the technical field of pulp shooting machines, and discloses a self-adaptive pulp shooting machine for vertical shaft inner wall unevenness, and the self-adaptive pulp shooting machine for vertical shaft inner wall unevenness integrates advanced equipment which integrates efficient pulp shooting, self-adaptive adjustment and automatic control. The pipeline conveying mechanism is responsible for accurately conveying high-pressure slurry to the rotary material spraying mechanism, and the rotary material spraying mechanism uniformly sprays the slurry to the inner wall of a vertical shaft in a mist form through high-speed rotation. The position of the self-adaptive lifting structure can be automatically adjusted according to the unevenness of the inner wall of the vertical shaft, it is ensured that the slurry covers all details, and even slurry spraying can be achieved whether grooves or protrusions exist. In addition, the guniting machine is driven by a pneumatic motor, not only adapts to the complex underground environment, but also is high in response speed and can quickly adapt to the change of the inner wall of the vertical shaft. The overall design pays attention to efficiency, stability and durability, manual intervention is reduced through automatic operation, the construction quality and efficiency are improved, and meanwhile material waste and cost are reduced.
Owner:BEIJING CHINA COAL MINE ENG CO LTD +1

Groove excavation protection device for water conservancy construction

The utility model discloses a trench excavation protection device for water conservancy construction, which comprises two protection side plates, the lower side walls of the two protection side plates are both provided with two rotating bottom grooves, the two protection side plates are rotatably connected with supporting bottom rods through the rotating bottom grooves, the upper end of each supporting bottom rod is rotatably connected with a reinforcing supporting rod, and the lower end of each supporting bottom rod is rotatably connected with a supporting rod. The side walls, close to each other, of the two protection side plates are each provided with two side sliding grooves, and adjusting screw rods are in threaded connection with the positions, located on the upper sides of the side sliding grooves, in the upper side walls of the protection side plates. Buffering pads are fixedly connected to the side walls, close to each other, of the two protection side plates, and rotating bases are fixedly connected to the side walls, close to each other, of the two buffering pads. According to the utility model, the adjusting screw rod can drive the sliding block to slide up and down in the side sliding groove, so that the angle between the reinforcing side rod and the protective side plate is adjusted, and the groove on the outer side of the protective side plate can be effectively reinforced.
Owner:HUBEI GONGJIAN WATER CONSERVANCY & HYDROPOWER ENGINEERING CO LTD

Bedside constraint glove alarm

The utility model relates to the technical field of alarms, in particular to a bedside constraint glove alarm, which comprises a mounting box. The sensing assembly comprises a wide-angle infrared sensor which is embedded in the front surface of the mounting box and is used for monitoring the restraint glove body; the control module comprises a display screen and keys, the display screen is embedded in the front face of the mounting box and used for displaying bed numbers, the keys are used for adjusting the bed numbers displayed by the display screen, and the control module further comprises a control chip arranged in the mounting box. By arranging the sensing assembly, the control module, the data processing module and the display module, in the use process of the alarm after actual installation, when a patient wears a zipper on the constraint glove body to be opened, or the constraint of the constraint glove body is loosened to a certain degree, the alarm body can give an alarm, and the alarm effect is improved. Therefore, the alarm can give an alarm in time when the zipper for restraining the glove is opened or the tightness degree is uncomfortable.
Owner:ZHEJIANG PROVINCIAL PEOPLES HOSPITAL

Electrical automation automatic adjustment testboard

The invention belongs to the technical field of testing, and particularly relates to an electrical automation automatic adjustment test board which comprises a cabinet body, the top of the cabinet body is connected with a supporting table through bolts, one side of the top of the supporting table is connected with a test frame through bolts, and one side of the test frame is provided with a plurality of testers. A clamping mechanism is arranged at the top of the supporting table, base plates are arranged on the two sides of the top of the clamping mechanism, fixing clamps are connected to the tops of the two base plates through bolts, through openings are formed in the two sides of the tops of the two fixing clamps in a penetrating mode, and fixing mechanisms are arranged between the two through openings and the fixing clamps. Through cooperation between the clamping mechanism and the fixing mechanism, the to-be-tested piece can be effectively fixed, so that the test stability of the to-be-tested piece is improved, and the situation that the position of the to-be-tested piece deviates due to vibration in the test process is prevented; therefore, the lead between the to-be-tested piece and the tester falls off to influence the test of the to-be-tested piece.
Owner:HAINAN BAOHUAN TECH CO LTD

A drawing machine drawing verticality detection device

ActiveCN121131464BReach limit effectthe same height
The application relates to the technical field of a wire drawing verticality detection device, and discloses a wire drawing machine wire drawing verticality detection device, which comprises a curved extension plate, the end of the curved extension plate is rotationally connected with a push plate, the bottom of the curved extension plate is rotationally connected with a push rod, the end, away from the curved extension plate, of the push rod is rotationally connected with a bent rod, and the lower surface of a protection telescopic plate is fixedly connected with a supporting telescopic rod. The protection mechanism is arranged, when the lifting frame moves upwards, the pull ring is driven to move upwards, at this time, the pull ring pulls the protection telescopic plate to extend upwards, so that the same height as the whole metal wire is ensured, the setting of the protection telescopic plate effectively prevents the metal wire from being excessively stretched, broken and splashed to both sides by the elastic force, the metal wire is blocked by the protection telescopic plate, and the safety hazard is eliminated.
Owner:江苏泰隆机电科技有限公司

An advanced small conduit pre-reinforcement system and construction method thereof

The present invention discloses an advanced small conduit pre-reinforcement system, including an advanced small conduit, wherein the advanced small conduit is provided with a double layer along the entire circumference of the tunnel, wherein the double layer includes an inner layer and a middle layer, wherein the inner layer and the middle layer of the advanced small conduits are uniformly inserted in the water-rich soft rock along the circumference of the tunnel, wherein the inner layer of the advanced small conduits and the middle layer of the advanced small conduits are staggered, wherein an outer layer of the advanced small conduits is added within an angle range of 110°-130° of the top pressure arch of the tunnel, wherein the outer layer of the advanced small conduits are uniformly inserted in the water-rich soft rock along the circumference of the tunnel, wherein the outer layer of the advanced small conduits and the middle layer of the advanced small conduits are staggered, wherein grouting holes are uniformly provided on the advanced small conduits, wherein the advanced small conduits are used for injecting grouting liquid, and wherein the ends of the advanced small conduits are fixed on the arch frame of the tunnel. The present invention enables a large grouting reinforcement area, a good reinforcement effect, effectively reinforces loose rock mass, prevents tunnel collapse, and thus improves surrounding rock grade and construction safety.
Owner:CCCC TUNNEL ENG CO LTD +1

A device and method for reinforcing a tunnel starting well portal soil body by injecting a microbial slurry

ActiveCN116464459BReduce internal loosenessavoid cloggingMicroorganismSoil science
The application belongs to the technical field of tunnel soil body reinforcement, and particularly discloses a device and method for reinforcing soil body of a tunnel starting well portal by injecting microbial slurry, which comprises a storage component, a transmission component and an injection component, the storage component comprises two constant-temperature boxes, and the two constant-temperature boxes are respectively used for placing bacterial liquid and cementing liquid; the transmission component comprises a multi-connection micro high-pressure pump, and two independent liquid channels are arranged in the pump; the injection component comprises a grouting guide pipe and a rotating grouting head, the grouting guide pipe comprises two hollow semi-cylindrical pipes, and the longitudinal straight faces of the two hollow semi-cylindrical pipes are attached together to form a cylinder with two independent longitudinal cavities; the two independent longitudinal cavities are respectively connected with the two constant-temperature boxes through different liquid channels; a plurality of spray holes are longitudinally and uniformly arranged on the arc faces of the hollow semi-cylindrical pipes; and the rotating grouting head is used for driving the grouting guide pipe to rotate. The application can reduce the internal loose problem of the soil body reinforced by the microorganism, and improve the reinforcement effect of the soil body of the tunnel starting well portal.
Owner:HUAZHONG UNIV OF SCI & TECH

Construction method for large-span multi-arch tunnel entering structure in bealock section

The invention relates to the technical field of tunnel engineering, and provides a construction method of a bealock section large-span multi-arch tunnel entry structure, which comprises the following steps: constructing a first pre-reinforcing pile assembly and a second pre-reinforcing pile assembly, excavating a temporary side slope to construct a middle pilot tunnel, excavating the middle pilot tunnel, and constructing a middle partition wall in the middle pilot tunnel after the middle pilot tunnel is communicated. And backfilling soil and stones to the bottom height of the protective arch, constructing the protective arch located above the left tunnel hole and the right tunnel hole, constructing an open cut tunnel section and an end wall type tunnel portal, backfilling soil at the top of the protective arch to the designed height, and then synchronously constructing the left tunnel hole and the right tunnel hole to the hidden tunnel section. According to the method, synchronous construction of the left main hole and the right main hole of the multi-arch tunnel can be achieved, the construction procedures of the multi-arch tunnel are greatly reduced, safety is high, meanwhile, the side slope is effectively reinforced, the side slope is prevented from collapsing in the excavation process, the design method of the protection arch is further provided, the determined protection arch can meet the structural requirement, and construction convenience can be improved.
Owner:HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD

An anchor structure for geotechnical construction

This utility model relates to the field of anchor bolt technology, and in particular to an anchor bolt structure for geotechnical construction, including an anchor bolt, a guide head, a sliding sleeve A, an anti-slip plate, and an elastic support assembly. The anchor bolt has a through hole coaxial with it, and several barbs A are provided on its outer wall. The guide head is connected to one end of the anchor bolt and has a grouting hole communicating with the through hole. The sliding sleeve A is fitted onto the anchor bolt, and several sets of connecting rods A are provided on the sliding sleeve A, with two connecting rods A in each set, and the two connecting rods A in the same set are parallel to each other. The anti-slip plate is rotatably connected to the ends of the two connecting rods A on the corresponding side away from the sliding sleeve A. The elastic support assembly is provided on the anchor bolt to expand each connecting rod A, thereby synchronously adjusting the distance between each anti-slip plate and the anchor bolt axis. This utility model improves the pull-out resistance of the anchor bolt and the stability of the connection between the anchor bolt and the geotechnical structure by relying on the anti-slip plate expanded by the elastic support assembly to abut against the inner wall of the rock borehole and by adding the barb structure.
Owner:SICHUAN DADUHE SHUANGJIANGKOU HYDROPOWER DEV CO

Compressed air energy storage sealing layer steel plate anti-deformation reinforcing structure

The invention belongs to the technical field of steel plate reinforcement, and particularly relates to a compressed air energy storage sealing layer steel plate anti-deformation reinforcement structure. Comprising a row of first screws welded and fixed to the inner side of a sealing layer steel plate, the two sides of the row of first screws are each provided with a steel channel, the row of first screws are jointly sleeved with an upper pressing plate, the upper pressing plate is located at the top ends of the two steel channels, and first locking nuts are installed on the upper portions of the first screws in a threaded mode; an upper pressing plate is tightly pressed on the two pieces of channel steel through the first locking nuts, and the two pieces of channel steel are tightly pressed on the sealing layer steel plate through the upper pressing plate. According to the reinforcing structure, the sealing layer steel plate can be effectively supported and reinforced by adopting the reinforcing structure composed of the first screw rod, the channel steel, the upper pressing plate and the first locking nut, so that the sealing layer steel plate is prevented from being deformed in the transportation and installation process, convenience is provided for later welding and splicing construction, and the construction efficiency is improved.
Owner:CHINA RAILWAY FIRST GROUP CO LTD +1

Fixing device for concrete slab explosion test

The invention discloses a fixing device for a concrete slab explosion test, which comprises a fixing seat, and the fixing seat comprises a first supporting unit and a second supporting unit which are detachably arranged; first clamping assemblies are arranged at the top ends of the first supporting unit and the second supporting unit; the fixing base is further provided with a monitoring unit and a blasting assembly fixing unit. The free end of the blasting assembly fixing unit can be close to or away from the fixing base, the second clamping unit comprises a first clamping assembly and a second clamping assembly which are detachable, and the second clamping assembly can move in the vertical direction of the first clamping assembly; the device can effectively simulate the real clamping and stress conditions of the two ends of a concrete slab in a building under the action of an explosion load, greatly improves the accuracy of an anti-explosion performance loading test of the concrete slab with the two ends clamped and supported, meets the test of different to-be-tested assemblies at the same time, and improves the test efficiency. The test efficiency is improved and the cost is reduced.
Owner:CHANGAN UNIV

Comparator and resistance network-based negative single-particle transient reinforcing circuit and method

The invention provides a negative single-particle transient reinforcing circuit and method based on a comparator and a resistance network, the negative single-particle transient reinforcing circuit comprises the comparator, the resistance network, a transistor and a capacitor, the positive electrode input end of the comparator is connected with the output end of a BGR, the negative electrode input end of the comparator is connected with the resistance network, and the transistor is connected with the capacitor. The output end of the comparator is connected with the grid electrode of the transistor, the drain electrode of the transistor is connected with the positive electrode input end of the comparator, the source electrode of the transistor is connected with one end of the capacitor and the voltage output end, and the other end of the capacitor is grounded. The plurality of resistors comprise a fifth resistor, a sixth resistor and an Nth resistor RN (N is an integer greater than 5). According to the negative single-particle transient reinforcing circuit based on the comparator and the resistance network, the Vref voltage output by the BGR subjected to SET is adjusted in real time based on the comparator, the circuit can be effectively reinforced, and the output voltage can be stabilized within a certain range.
Owner:NAT UNIV OF DEFENSE TECH

Existing building flat roof repairing structure

The invention relates to the technical field of building design, in particular to an existing building flat roof repairing structure which comprises a repairing groove formed in a water seepage position of a flat roof and extending from the upper surface of the flat roof to the upper surface of a structural layer of the flat roof; the water pumping assembly comprises a water collecting cover, a water pumping vertical pipe and a rainproof cap, the water collecting cover is located in the repairing groove and used for collecting roof leakage water, the bottom end of the water pumping vertical pipe communicates with the water collecting cover, the top end of the water pumping vertical pipe upwards extends out of the repairing groove, and the rainproof cap is detachably arranged at the top end of the water pumping vertical pipe; and the backfilling layer is backfilled in the repairing groove and covers the water collecting cover and the part, located in the repairing groove, of the water pumping vertical pipe. By grooving the water seepage position of the flat roof and arranging the water pumping assembly, water diversion and drainage of water seepage and accumulated water can be achieved, even if the surface layer of the flat roof encounters the accumulated water problem in the follow-up process, the accumulated water can be rapidly pumped out through the reserved water pumping vertical pipe, secondary excavation is avoided, and later maintenance and overhaul of the flat roof are facilitated.
Owner:SHANGHAI FANGKE ARCHITECTURAL DESIGN CO LTD

Wind power tower cylinder recess repair and reinforcement structure and construction method thereof

PendingCN122670123AEnhanced out-of-plane stabilityCurbing re-denting problems
This invention relates to the field of wind power equipment operation and maintenance technology, and in particular provides a wind turbine tower dent repair and reinforcement structure and its construction method. The reinforcement structure includes a lifting device for jacking out and repositioning the dented area of ​​the wind turbine tower until the inner diameter deviation meets the standard requirements; an inner reinforcing layer bonded to the inner wall of the wind turbine tower repair area; and an outer insulation layer disposed on the outer wall of the wind turbine tower repair area. This invention uses a lifting device to jack out and reposition the wind turbine tower repair area until the inner diameter of the wind turbine tower meets the standard requirements; maintains the pressure of the lifting device to bond the inner reinforcing layer to the inner wall of the wind turbine tower repair area, improving the out-of-plane stability of the wind turbine tower and preventing further denting; and coats the wind turbine tower repair area with an outer insulation layer to reduce the impact of thermal expansion and contraction by isolating external temperature differences, preventing the internally bonded inner reinforcing layer from detaching due to rapid temperature changes.
Owner:SHANGYI COUNTY XULAN NEW ENERGY TECHNOLOGY CO LTD

Underground water environment risk management and control device for chemical industry park

The utility model discloses a chemical industry park groundwater environment risk management and control device, the chemical industry park groundwater environment risk management and control device comprises groundwater guide and drainage blind ditches, the groundwater guide and drainage blind ditches comprise a first guide and drainage blind ditch and a second guide and drainage blind ditch; the first guide and drainage blind ditch is arranged on the periphery of the chemical industry park, underground water flows downstream and is connected with the clear water collection pool; and the second guide and drainage blind ditch is arranged in the chemical industry park and is connected with the sewage collection pool. The underground water environment risk management and control device for the chemical industry park is reasonable in structure, and polluted underground water is collected based on natural flowing of the underground water; and compared with traditional underground water pumping treatment, the energy consumption is effectively reduced, and the green and low-carbon management and control requirements are met.
Owner:CHINESE ACAD OF ENVIRONMENTAL PLANNING

Temporary reinforcing and supporting structure for removing platform bridge of existing running railway

ActiveCN224186632Ufast reinforcementReinforcement can be carried out quickly and effectively on overpassesBuilding repairsShoresArchitectural engineeringStructure support
The temporary reinforcing and supporting structure comprises a concrete strip-shaped base, concrete short columns are arranged at the two ends of the concrete strip-shaped base, and stand columns inserted into the concrete short columns are arranged on the two sides of the two concrete short columns. Outer inclined supporting columns inserted into the concrete short columns are arranged on the outer sides of the two concrete short columns, an inter-column connecting rod assembly is arranged between every two adjacent columns, and distribution beams for supporting a bridge body of the overbridge are arranged on the two columns of the concrete short columns. The distribution beam is provided with a middle supporting column supporting rod which upwards penetrates through a bridge body of the overbridge and is connected with a top cover of the overbridge. The utility model belongs to the technical field of building construction, the concrete strip-shaped base, the concrete short columns, the stand columns and the outer inclined supporting columns are arranged between the two bridge columns of the overbridge to support the overbridge, the construction time is short, the assembling speed of a steel structure is high, and the overbridge can be rapidly and effectively reinforced.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP

Arc-shaped concrete formwork reinforcing assembly

The utility model discloses an arc-shaped concrete formwork reinforcing assembly which comprises a vertically-arranged secondary keel and an adjustable chain type main keel, the adjustable chain type main keel comprises a plurality of fixing rods, every two left-right adjacent fixing rods are connected through an upper connecting rod and a lower connecting rod, and limiting grooves are formed in the ends of the fixing rods. A vertically-arranged stud is installed in the limiting groove in a penetrating mode, the stud is connected with the limiting groove through a sliding block, and the two connecting rods are hinged to the fixing rod through the stud. A clamping groove matched with a secondary keel is formed in the inner side of the middle of the fixing rod, the clamping groove is composed of a left groove-shaped clamping jaw and a right groove-shaped clamping jaw, the groove-shaped clamping jaws are connected with the fixing rod in a sliding mode, a split bolt hole is formed in the fixing rod, and the split bolt hole and the clamping groove are coaxially arranged. The reinforcing device can effectively reinforce the secondary keel on the outer side of the arc-shaped concrete formwork, the stability of the formwork after assembly is guaranteed, and concrete formwork expansion is effectively avoided.
Owner:CHINA CONSTR SIXTH ENG BUREAU INDL EQUIP INSTALLATION CO LTD

Mine soft start cabinet with double bypass switching structure

The application discloses a mine soft start cabinet with a double bypass switching structure and relates to the technical field of mine soft start cabinets.The mine soft start cabinet comprises a locking assembly, the locking assembly comprises a mine soft start cabinet, one side of the mine soft start cabinet is provided with a cabinet door, one side of the mine soft start cabinet is provided with an incoming line port, the inner wall of the bottom of the mine soft start cabinet is provided with a mounting bracket, one side of the mounting bracket is connected with a double bypass switching panel, and one side of the double bypass switching panel is slidably provided with a double bypass switching switch.Three L-shaped locking racks of the locking assembly can effectively and firmly lock the double bypass switching switch during bypass switching, the locking can effectively limit and fix the double bypass switching switch, the double bypass switching switch can be prevented from accidentally sliding due to vibration during operation, unnecessary bypass switching can be avoided, the normal operation of the mine soft start cabinet and mine equipment load can be ensured, and unnecessary damage can be avoided.
Owner:ZUNYI CHANGZHENG ELECTRICAL APPLIANCE MFG

A pressurized valley electricity heat storage device

The present invention discloses a pressurized valley electricity heat storage device, which belongs to the technical field of valley electricity heat storage devices. It includes a heat storage tank body, a heat storage and release electric valve, a water mixer, a water mixing electric valve, a heating circulation pump, an electric vacuum hot water boiler and a heating electric valve. The top of the heat storage tank body is connected to a first connecting pipe, the bottom of the heat storage tank body is connected to a second connecting pipe, and a plurality of circular orifice plates are arranged in the heat storage tank body. By arranging a plurality of circular orifice plates at specific positions according to the height-to-diameter ratio of the heat storage tank body, the heat storage tank body is effectively reinforced to ensure the safety of the heat storage tank body structure; the openings can prevent turbulence of hot water in the heat storage tank body, forming a vertical laminar flow of high-temperature hot water from bottom to top during heat release and a vertical laminar flow of high-temperature hot water from top to bottom during heat storage, thereby ensuring temperature stratification and improving heat storage efficiency.
Owner:SHANGHAI NANYU SMART ENERGY SYST CO LTD

Tunnel anti-collision wall formwork reinforcing structure

The utility model relates to a tunnel anti-collision wall formwork reinforcing structure which comprises a first inclined strut, a second inclined strut and a third inclined strut. The near end of the first inclined strut abuts against the lower portion of the formwork, and the far end of the first inclined strut abuts against a tunnel bottom plate. The second inclined strut is obliquely arranged upwards, the near end of the second inclined strut abuts against the upper end of the template, and the far end of the second inclined strut abuts against the bottom plate; the third inclined strut is arranged obliquely downwards, the near end of the third inclined strut abuts against the upper end of the formwork, and the far end of the third inclined strut abuts against the tunnel side wall. A square timber support is further included; the square timber support is in a strip block shape, and the two ends of the square timber support abut against the upper end of the formwork and the tunnel side wall respectively. The formwork is comprehensively reinforced through the inclined struts at different angles and the square timber supports in the horizontal direction, the problems that when concrete is poured on the formwork, the top end floats upwards, slurry leaks from the bottom, an upper opening moves and the like possibly occur are effectively solved, the overall stability of the formwork is improved, and the appearance quality is attractive and the line type is smooth after formwork removal.
Owner:南京同力建设集团股份有限公司

A construction method for reinforcing the shaft opening of a pumped storage power station

The invention discloses a construction method for reinforcing a shaft opening of a pumped-storage power station, including: constructing a pumped-storage power station shaft opening reinforcement structure to stably reinforce the shaft opening of the power station. The vibration-cracked rock layer is fixedly connected to a post-cast reinforcement layer cast later through a plurality of implanted reinforcement bodies and a plurality of transverse reinforcements to form a whole, and the anchor cable can effectively connect and reinforce the post-cast reinforcement layer, the vibration-cracked rock layer and the original rock layer, thereby ensuring the stability of the shaft opening reinforcement of the pumped-storage power station, and solving the problem that the reinforced concrete reinforcement layer formed by casting the inner diameter surface of the wellhead cannot effectively reinforce and connect the vibration-cracked rock layer with the original rock layer.
Owner:CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD

A deep foundation pit construction infusion device

This utility model relates to the field of deep foundation pit construction technology, specifically a grouting device for deep foundation pit construction. It includes a base plate, a storage tank mounted on the base plate, a water pipe connected to the bottom of the storage tank, a water pump connected to one side of the water pipe, and a first screw installed within a fixed frame. This utility model, through the cooperation of the base plate, storage tank, water pipe, water pump, inlet, fixed frame, first screw, first drive motor, moving plate, nozzle, fixed frame, second screw, second drive motor, moving block, first electric telescopic rod, and clamping block, allows the grouting device to grout from the bottom of the deep foundation pit, simultaneously and evenly grouting the interior, ensuring effective reinforcement of the deep foundation pit, enhancing the bearing capacity of the foundation, and increasing the cohesion and shear strength of the foundation soil. This helps reduce foundation deformation and settlement, improving the overall stability of the foundation. In deep foundation pit engineering, the stability of the foundation is directly related to the safety and stability of the project.
Owner:深圳市蛇口招商港湾工程有限公司

Cantilever retaining wall

The utility model relates to the field of building construction technology, concretely relates to a cantilever type retaining wall, including wall panel, wall toe board and wall heel board, the wall panel vertical setting, wall toe board and wall heel board set up in the both sides of wall panel respectively, wherein, the intersection of wall toe board and wall heel board both with wall panel is equipped with reinforcing body, the reinforcing body is equipped with reinforcing steel bar in, the lower part of wall panel is equipped with tenon, the tenon is set up and inclines to wall heel board, the retaining wall below is equipped with high pressure rotary jet pile and graded broken stone cushion, the graded broken stone cushion is laid in the downside and the inside and outside of wall toe board and wall heel board, a plurality of drainage channels are equipped on the wall panel, the back of drainage channel is equipped with filter back layer, the filter back layer includes the bagged gravel layer and bagged broken stone layer of alternately arranged. Therefore, can prevent the soil body loss and guarantee the smooth drainage more effectively and more durable.
Owner:RANKEN RAILWAY CONSTR GROUP

Cement-based grouting material

PendingCN119638339AImproves compressive strength propertiesIncreased durabilityAluminateAcrylic resin
The invention provides a cement-based grouting material, which is prepared from the following ingredients in parts by weight: 30 to 60 parts of composite cement, 15 to 25 parts of kaolin, 10 to 20 parts of silicon dioxide powder, 20 to 30 parts of acrylic resin, 8 to 13 parts of methylene bisacrylamide, 1 to 3 parts of water reducing agents, 3 to 10 parts of waterproof agents and 0.5 to 1.5 parts of retarders. Wherein the composite cement comprises Portland cement and sulphoaluminate cement. According to the cement-based grouting material, Portland cement and sulphoaluminate cement are used as substrates, and the proportion of composite cement, kaolin, silicon dioxide powder, acrylic resin, methylene bisacrylamide, a water reducing agent, a waterproof agent and a retarder is controlled; a curing system formed after the grouting material is cured has high compressive strength, high acid and alkali corrosion resistance and good waterproof performance, and effective filling and reinforcing can be achieved. Meanwhile, due to the characteristic of low additive content, harmful substances are not easy to release, and the coating is greener and more environment-friendly.
Owner:CHINA ENERGY GRP NINGXIA COAL IND CO LTD +1

Formwork reinforcing device for joint of top of concrete cylinder and beam

The utility model discloses a formwork reinforcing device at the joint of the top of a concrete cylinder and beams, beam side formworks are arranged on the two side faces of the two beams at the top of the cylinder, and a cylinder formwork is arranged at the top of the cylinder and located between the two beams; the beam side formwork reinforcing mechanism is used for reinforcing beam side formworks on the two sides of a beam at the same position. The cylindrical formwork reinforcing assembly is used for reinforcing a cylindrical formwork and comprises an adapter piece, a second opposite-pull screw assembly, a supporting rod, a locking nut, a clamping base and a supporting strip, the two ends of the adapter piece are lapped on the secondary edges of the two side beam side formworks correspondingly, and the middle of the adapter piece faces the cylindrical formwork. The second opposite-pull screw assemblies penetrate through the beam side formworks on the two sides of the same beam, the two ends of the second opposite-pull screw assemblies are oppositely pulled and pressed on the ends of the connectors and the secondary edges respectively, the supporting rods penetrate through the middles of the connectors and abut against the connectors in the length-adjustable mode through the locking nuts, the clamping bases are arranged at one ends of the supporting rods, the supporting strips are vertically located in the clamping bases, and the supporting strips abut against the outer sides of the cylindrical formworks through the clamping bases. The device can effectively reinforce the formwork at the joint of the top of the concrete cylinder and the beam.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP (ZHEJIANG) CO LTD

Broken bridge aluminum window structure of balcony window

The utility model relates to the technical field of bridge-cut-off aluminum windows, and discloses a bridge-cut-off aluminum window structure of a balcony window, which comprises a bridge-cut-off aluminum window integrated frame, first glass and second glass, a side aluminum window frame is hinged to the inner side of the bridge-cut-off aluminum window integrated frame, an aluminum window slot is formed in the inner side of the side aluminum window frame, and the first glass and the second glass are hinged to the bridge-cut-off aluminum window integrated frame. A first frame is fixedly installed on the inner side of the aluminum window open groove and is flush with the outer surface of the side aluminum window frame. Compared with a traditional device, due to the fact that the threaded rod is embedded into the inner side of the expansion screw cylinder to promote the expansion screw cylinder to expand towards the two sides, the wood block, the groove and the conduction plate are driven to cooperatively operate, and finally the multiple annular flexible cushion blocks push the extrusion blocks to extrude the face, hinged to the broken bridge aluminum window integrated frame, of the side aluminum window frame. In the process, the elastic force of the annular flexible cushion block is used for automatic compensation, the position is accurately fixed, the hinged position is effectively reinforced, the deformation and damage risks are greatly reduced, the service life is prolonged, and the operation stability and reliability of the whole device are guaranteed.
Owner:XIAOXIAN OULIN DOORS & WINDOWS CO LTD

An impact-resistant reinforced washing machine inner tub assembly

This utility model provides an impact-resistant and reinforced washing machine inner drum assembly, including a side support structure, which comprises a clamping structure and a fixing structure. The clamping structure is disposed at the top and bottom of the washing machine inner drum structure, and a fixing structure is disposed between two clamping structures. The fixing structure is disposed on the inner wall of the machine compartment. This utility model is reasonably designed. By using the side support structure disposed on the outer wall of the washing machine inner drum structure, the side support structure can effectively support and reinforce the washing machine inner drum structure, avoiding stress concentration problems during the rotation of the washing machine inner drum structure. At the same time, the washing machine inner drum structure rotates within multiple side support structures, which can fix and clamp the washing machine inner drum structure, maintaining its stability.
Owner:WUXI KEZHENGHUI INTELLIGENT TECH CO LTD