40results about How to "Guarantee stress stability" patented technology

The invention discloses a high-segmentation upward deep hole ore extraction zero-dead-zone following filling mining method. Firstly, a drilling chamber is constructed at the top end of a stage stope room, an operating space is formed through supporting, a mine collecting structure is established at the bottom end, upward chambering is carried out, a compensation space is formed, and the mining and cutting work is finished; secondly, a vertical deep hole is drilled in the drilling chamber, and the configuration of a boundary presplitting smooth blasting bomb hole is matched; thirdly, the upward segmentation blasting is carried out, ore reserving and ore removing are carried out, the zero dead zone in the ore removing process is ensured, and meanwhile the compensation space is guaranteed; fourthly, after appropriate ore drawing in the final blasting, an interlayer is arranged on the top of an ore heap, and the interlayer is covered with dead rock to fill the top dead zone along with the ore drawing; fifthly, after ore drawing is finished, stope room dead rock cemented filling is achieved through the potting material at the top end. The mining method is suitable for the environment where mine fragmentation is not stable, the large dead zone is not allowed, but high-segmentation, large-scale and large-yield thick and large ore body mining is urgent. The mining method has the advantages that the structure is simple, and high efficiency and economic efficiency are achieved.

The invention provides a rotating joint connecting device for a prefabricated component inclined strut and an application method. The rotating joint connecting device aims at solving the problems that when an inclined strut used for adjusting the perpendicularity is mounted through a PC component, the inclined strut is subjected to eccentric compression due to off position of pre-buried parts, and thereby mounting quality of the whole prefabricated component is influenced. The connecting device comprises an embedded plate, a 360-degree rotatable joint and a limiting component, the embedded plate is fixedly connected with the PC prefabricated component through embedding parts, the 360-degree rotatable joint is perpendicular to a prefabricated wall component or a prefabricated floorslab component and fixedly connected to the embedded plate, and the limiting component penetrates through the end of the inclined strut and is fixedly connected with the free end of the 360-degree rotatable joint. By means of the connecting device, hinge of joint positions can be achieved, and the situation that additional stress is generated to slabs and support bars is avoided. The application method comprises the following steps: 1, fixedly connecting the two ends of the inclined strut with the prefabricated wall component and the prefabricated floorslab component respectively; 2, rotating the inclined strut, so that the end of the inclined strut is perpendicular to the embedding parts.

The invention discloses a raft foundation building lifting and reinforcing structure and method under a corrosive geological environment. The lifting and reinforcing structure comprises a lower columnof an existing building, a raft foundation connected with the bottom of the column, a composite foundation reinforcing layer connected with the lower portion of the raft foundation, a composite pilefoundation connected with the lower portion of the composite foundation reinforcing layer and a water stop curtain connected to the periphery of the raft foundation. During the construction, by arranging the water stop curtain, blocking of the water in a water containing layer and preventing of the outflow of slurry and in-situ water and soil are facilitated, the inverted-L-shaped design of the water stop curtain can further avoid the re-corrosion of the raft foundation, and the limit of the lateral displacement is ensured; and by arranging the composite foundation reinforcing layer and the composite pile foundation, local lifting and overall reinforcement of the raft foundation are facilitated, the water stop curtain is combined to improve the overall bearing capacity, by forming groundwater monitoring holes, monitoring of the level of groundwater during the field construction is facilitated, and maintaining of the stability of water and soil pressure in the underground environment isfacilitated.

The invention discloses a bracket separating machine and relates to the field of bracket separating equipment. The bracket separating machine comprises a rack. The rack is provided with a bracket pushing mechanism, a tooth separating mechanism, a bracket sucking mechanism and a box bracket conveying device. The bracket pushing mechanism comprises a bracket feeding platform arranged on the rack. Asliding groove is formed in the bracket feeding platform in the bracket pushing direction. A bracket pushing frame is movably arranged in the sliding groove. The upper portion of the bracket pushing frame extends out of the sliding groove to be provided with a bracket pushing plate. The bottom of the bracket feeding platform is provided with a guide rail in the bracket pushing direction. The rackis provided with a traction mechanism used for drawing the bracket pushing frame to move towards the tooth separating mechanism. The tooth separating mechanism is arranged at the tail end of the bracket feeding platform. The bracket sucking mechanism is arranged at a position, corresponding to the tooth separating mechanism, of the rack. The box bracket conveying device is arranged under the bracket sucking mechanism and is located on the rack. An arc-shaped bracket guiding plate is arranged between the bracket feeding platform and the box bracket conveying device on the rack. The lower end of the arc-shaped bracket guiding plate is connected with the box bracket conveying device. The bracket separating machine has the advantages of being good in bracket sucking effect and stable in bracket sucking and bracket pushing force, and requiring no external power source.

The invention relates to a fascia gun, which comprises a shell, a telescopic driving device is arranged in the shell, the telescopic driving device comprises an outer frame, a driving motor is arranged on one side of the outer frame, an outer cylindrical surface cam is arranged on the driving motor, a telescopic sleeve is further arranged on the outer frame, a rotary sleeve is arranged at one end of the telescopic sleeve, the outer cylindrical surface cam is located in the rotary sleeve, two sliding pins arranged at an interval of 180 degrees are arranged on the outer wall of the rotary sleeve, the sliding pins extend into the rotary sleeve, and a first sliding groove and a second sliding groove are formed in the outer wall of the outer cylindrical surface cam at an interval of 180 degrees in the circumferential direction of the outer wall of the outer cylindrical surface cam. The groove depth of the first sliding groove is larger than that of the second sliding groove, the two sliding pins are in sliding fit with the first sliding groove and the second sliding groove respectively, and the length of the sliding pin of the first sliding groove penetrating into the inner wall of the rotary sleeve is larger than that of the second sliding groove. The fascia gun has the advantages of being high in bearing capacity, stable and reliable in work and short in axial size.

The invention discloses a wear-resistant part with a space latticed ceramic-metal composite layer and a preparation method thereof. The preparation method comprises the following steps of firstly, forming ceramic particles into a spherical ceramic preform, stacking the spherical ceramic preform into a space latticed ceramic block, placing the ceramic block in a mold cavity, pouring molten metal into the mold cavity, and obtaining the wear-resistant part with the space latticed ceramic-metal composite layer after forming. The prepared wear-resistant part prepared by the preparation method is more excellent in strength and wear resistance and not prone to falling off, and the composite layer of the obtained wear-resistant part is large in thickness and longer in service life.

The invention provides a non-converging reactor hanging rack device. The device comprises a non-magnetic steel hub member for providing support and a plurality of lifting arms. The non-magnetic steel hub member comprises an intermediate ring body portion and a plurality of extension parts; a plurality of the extension parts are evenly arranged on the outer circumferential surface of the intermediate ring body portion. A plurality of the lifting arms are mounted on a plurality of the extension parts in a one-to-one correspondence mode; the length direction of the lifting arms is consistent with the length direction of the extension parts. A through opening is arranged on the side wall of the intermediate ring body portion along the axial direction, so that the intermediate ring body portion is an intermediate circular ring portion with an opening so as to form a broken ring for preventing the intermediate ring body portion from forming circulation flow. The invention also provides a reactor. When the provided non-converging reactor hanging rack device is applied to reactor products, metal parts of the reactor hanging rack device can be effectively prevented from overheating; the stress stability of the reactor is ensured and the reliability of the reactor products is enhanced at the same time.

The invention discloses a steel box girder supporting system applicable to an asymmetric suspended monorail, and belongs to the field of suspended monorails. The steel box girder supporting system ispreferably provided with the structure of piers and a steel box girder; horizontal cap beams are arranged on the tops of vertical pier columns; bending arms are arranged at the bottoms of cantilever ends of the cap beams; corbels are arranged at the side wall surfaces of the pier columns; anti-compression supports are arranged on the top surfaces of the bending arms and the corbels; lug plate boxes corresponding to the anti-compression supports are arranged on two sides of the steel box girder; and the lug plate boxes match the anti-compression supports so as to form the stable steel box girder supporting system. The steel box girder supporting system disclosed by the invention is simple in structure and simple and convenient in arrangement, and has the advantages of effectively realizingthe conversion of tensile stress to compressive stress of the suspension structure, ensuring the force-bearing stability of the supporting system, reducing the amount of steel materials, saving the construction cost, improving the stability and service life of the steel box girder supporting system, promoting the application of asymmetric suspended monorail traffic, and achieving a good application prospect and promotion value.

The invention discloses a spirally ascending multi-space structural system. The spirally ascending multi-space structural system comprises a spirally ascending outer steel mesh, a polygonal steel frame connected to the inside of the outer steel mesh, and a set of core cylinders connected between the polygonal steel frame and a ground foundation;the outer steel mesh is a tubular structure composedof polygonal rods; an outer surface layer is connected with the outer surfaces of the outer steel mesh and the polygonal steel frame, wherein the polygonal steel frame is arranged in a corridor mannerbetween the outer steel mesh. According to the spirally ascending multi-space structural system, a flexible and multi-layered space structure is constructed by setting the outer space steel mesh in aspirally ascending manner, so that the overall rhythm of a building is beautiful, the outer space steel mesh is a polygonal tubular space, the smooth operation of the interior is ensured,and the external meandering design is highlighted; at the same time the interconnected design has a modern meaning, the overall design of the structure and the choice of steel structure are reasonable, and implementation is easy.

The invention relates to the technical field of toilet wall tiles, and further discloses household toilet wall tile treatment equipment and a treatment method. The household toilet wall tile treatmentequipment comprises a cylinder body, wherein an opening is formed in the bottom part of the cylinder body; a vertical position adjusting mechanism is arranged on the inner side of the cylinder body;guide sliding rails are fixedly connected to the left side and the right side of the cylinder body; guide movable blocks are movably connected to the inner sides of the two guide sliding rails; a transverse bearing connecting plate is fixedly connected between the two guide movable blocks; and the bottom part of the vertical position adjusting mechanism is connected with the upper surface of the transverse bearing connecting plate. According to the household toilet wall tile treatment equipment, the cylinder body, the vertical position adjusting mechanism, the guide sliding rails, the transverse bearing connecting plate, a transverse circulating moving mechanism, a rotary driving mechanism, a connecting sliding mechanism and a control switch are matched with one another, a traditional modethat a brush is used for repeatedly brushing wall tiles is changed, the cleaning strength of the wall tiles is reduced, meanwhile, cleaning liquid is effectively prevented from splashing to the bodyskin, and a user is effectively protected.

The invention discloses a method for handling dangers of a cement-earth gravity-type enclosure wall in a soft soil area, and belongs to the field of civil building engineering construction technologies. The method comprises the following steps: unloading an active area of a foundation pit to reduce water-earth pressure of the active area of the foundation pit; exerting a counter pressure to a passive area of the foundation pit to increase the resistance of the passive area; limiting a construction load; taking filling and repairing measures in a timely manner for cracks in a capping plate and a wall body of the cement-earth gravity-type enclosure wall; reinforcing the cement-earth gravity-type enclosure wall, controlling earthwork excavation, and quickly forming a rigid support-changing mechanism. Through a series of measures, foundation pit accidents, such as instability, slip and collapse, caused by deterioration of dangers such as deformation, cracking and leakage in an enclosure section of the cement-earth gravity-type enclosure wall during foundation pit excavation in a muddy soft soil layer can be prevented, so that safe and smooth implementation of foundation pit engineering are ensured.

The invention relates to a method for renovating open-joint grouting damage of a CRTS I-type double-block ballastless track sleeper. The method comprises the following steps: planting steel bars and anchoring roadbed slabs on two sides of the damaged sleeper; polishing the top surface of the roadbed slab; installing a WJ-7 type fastener embedded sleeve; chiseling away roadbed slab concrete at thediseased sleeper; pouring grouting materials into the ballast bed pit; removing the original WJ-8 type fastener, and installing the WJ-7 type fastener for transition; dismounting a WJ-7 type fastenerfor transition; installing an original WJ-8 type fastener; performing fine adjustment of steel rail. The stress form of the ballastless track structure does not need to be changed, and the stress stability of the ballastless track after renovation is guaranteed. The fasteners do not need to be repeatedly adjusted so that the maintenance workload is reduced, and the empty hanging damage of the sleeper with limited fastener adjusting capacity is treated; the used grouting material has high flowability, micro-expansibility and good bonding strength, after concrete of a roadbed slab at the heightof the sleeper is chiseled away, gaps of new and old joint parts can be thoroughly eliminated by pouring the grouting material, the periphery of the sleeper is effectively and completely filled, and the treatment is thorough according to the reasons of diseases.

The invention discloses a construction method of a tunnel drainage and waterproofing comprehensive treatment system. The tunnel drainage and waterproofing comprehensive treatment system comprises an outer water interception system, an outer drainage system, a tunnel waterproofing system and a tunnel drainage system. The outer water interception system comprises a water interception groove on the outer ground and a conveying pipeline from the water interception groove to the water collecting position, the outer drainage system comprises an outer water resisting layer and an outer drainage ditch connected to the side, close to the tunnel portal, of the outer water resisting layer, the tunnel waterproofing system comprises a waterproofing layer arranged in a lining, and the tunnel drainage system comprises side drainage ditches on the two sides of the road surface in a tunnel and the like. By means of the outer water interception groove, the outer water resisting layer and the outer drainage ditch of the tunnel, collected water of a slope body on the upper part of the tunnel and a large amount of flowing water in the rainwater period are effectively drained and prevented; through a waterproofing layer, a first water stop belt, an annular drainage pipe and the like in the tunnel, flowing water in cracks and karst caves in the tunnel can be dredged and drained; and drainage holes are connected with the annular drainage pipe, so that water flow in the reinforced tunnel lining can be drained through a retaining wall.

The invention discloses a concrete foundation pit supporting and monitoring construction technique based on an axial force servo system. The concrete foundation pit supporting and monitoring construction technique comprises the steps of preparing for construction, constructing a foundation pit enclosure structure, constructing a support structure, installing the axial force servo system, applying axial force, performing earth excavation, constructing a foundation and a structural layer, removing the support structure layer by layer along with the construction of a basement structure, and monitoring a foundation pit. According to the construction technique, the direct connection of a support beam and an enclosing purlin in the prior art is changed into the connection of the support beam and a truss beam, axial force is transmitted to an enclosing purlin structure through the axial force servo system, finally, the axial force is distributed on the foundation pit enclosure structure, and the enclosing purlin of an area to which the axial force is applied by the axial force servo system is separated from other enclosing purlin support steel bars and concrete, so that a non-enhanced area is not influenced by the area to which the axial force is enhanced, the change of the axial force is actively controlled by the axial force servo system, so that the deformation of the foundation pit support structure can be effectively reduced, the stability and safety of the foundation pit are guaranteed, the axial force change and deformation of the reinforced concrete foundation pit support structure are monitored in real time, and danger early warning is given out in advance.

The invention relates to a unit curtain wall external corner structure with a part decoration line. The unit curtain wall external corner structure comprises an external corner male stand column, an external corner female stand column, a unit stand column, an adapter bracket, a line steel frame and a large decoration line; and the external corner male stand column is matched with the external corner female stand column through a hook profile assembly and an insertion structure, the adapter bracket is arranged between the unit stand column and the external corner male stand column, the line steel frame is fixedly installed on the adapter bracket, and the large decoration line is fixedly installed on the line steel frame. According to the scheme, the stress stability of the large decoration line is guaranteed, the large decoration line and the curtain wall vertical face are not connected through a glue line, the external corner male stand column is matched with the external corner female stand column through the hook profile assembly, the problems of connection safety of the large decoration line and overlarge deflection under the lateral wind pressure effect are effectively solved, and the hidden danger of outer side water prevention is avoided; and the size and the specific position of the large decoration line can be conveniently designed, so that the sunshade and ventilation effects of the large decoration line are ensured, and a good energy-saving effect is achieved.

The invention relates to the technical field of automobile wire harness detection, and discloses an automobile wire harness tension detection device comprising a base, wherein two vertical plates arefixedly connected to the upper end of the base in a bilateral symmetry manner; the opposite sides of the two vertical plates are rotationally connected with two two-way screws in a front-back symmetrymode. One end of the two-way screw rod penetrates through and extends out of the vertical plate and is fixedly connected with a driven gear; the outer wall of the vertical plate is fixedly connectedwith a driving motor; and an output shaft of the driving motor is fixedly connected with a driving gear engaged with the two driven gears, the rod wall of the two-way screw rod is in threaded connection with a plurality of movable screw cylinders, the upper ends of the multiple movable screw cylinders are symmetrically and fixedly connected with two movable plates, and the upper ends of the movable plates are fixedly connected with a winding mechanism and a guiding mechanism. The wire harness tension detection device greatly improves the wire harness tension detection efficiency and is convenient to use.

The invention discloses a prefabricated box culvert structure with a widened top. The structure comprises a plurality of box culvert components (2) which are sequentially spliced, each box culvert component (2) comprises a top plate and side plates at the two sides, the top surface of each top plate is a passage surface for material transportation, the two sides of the top of each box culvert component (2) are provided with widening parts (3), the size of each widening part (3) is matched with that of the corresponding box culvert component (2), the top surface of each widening part (3) is flush with the top surface of the corresponding top plate, the sum of the width value of each widening part (3) and a value of the distance between the corresponding side plates at the two sides is the width of the corresponding passage surface, and therefore the width of the passage surfaces is increased; each widening part (3) is of a wedge-shaped structure, the cross-sectional area of each wedge-shaped structure is gradually reduced from the side, close to the corresponding side plate to the other side, and therefore the bearing capability of the widening parts (3) is improved. By means of theprefabricated box culvert structure with the widened top, the passage area for material transportation can be increased, and the construction progress is ensured.

The invention discloses a high-segmentation upward deep hole ore extraction zero-dead-zone following filling mining method. Firstly, a drilling chamber is constructed at the top end of a stage stope room, an operating space is formed through supporting, a mine collecting structure is established at the bottom end, upward chambering is carried out, a compensation space is formed, and the mining and cutting work is finished; secondly, a vertical deep hole is drilled in the drilling chamber, and the configuration of a boundary presplitting smooth blasting bomb hole is matched; thirdly, the upward segmentation blasting is carried out, ore reserving and ore removing are carried out, the zero dead zone in the ore removing process is ensured, and meanwhile the compensation space is guaranteed; fourthly, after appropriate ore drawing in the final blasting, an interlayer is arranged on the top of an ore heap, and the interlayer is covered with dead rock to fill the top dead zone along with the ore drawing; fifthly, after ore drawing is finished, stope room dead rock cemented filling is achieved through the potting material at the top end. The mining method is suitable for the environment where mine fragmentation is not stable, the large dead zone is not allowed, but high-segmentation, large-scale and large-yield thick and large ore body mining is urgent. The mining method has the advantages that the structure is simple, and high efficiency and economic efficiency are achieved.

The invention discloses a large-span combined bridge structure of a straddle type monorail and a arranging method thereof in a curve section, and belongs to the technical field of the straddle type monorails. A steel box girder and a steel rail track girder which are suitable for the straddle type monorail to be applied in a large-span environment are arranged, and the steel rail track girder is fixedly connected to the top of the steel box girder to form an integral stress structure, so that the steel rail track girder and the steel box girder can be subjected to cooperative stress, and the integral height of the large-span combined bridge structure is reduced while meeting the large-span application requirement. The large-span combined bridge structure of the straddle-type monorail is simple in structure and simple and convenient to arrange, can effectively meet the application requirement of the straddle-type monorail in a large-span application environment, greatly reduces the overall height of the large-span combined bridge structure, reduces the construction cost of the large-span combined bridge structure, improves the design flexibility of a corresponding track structure and station structure, improves the urban landscape when the straddle-type monorail is applied, and has good application prospect and popularization value.

The invention provides a garbage truck recycling device. The garbage truck recycling device comprises an L-shaped middle plate and a connecting hopper, wherein the L-shaped middle plate and the connecting hopper are arranged at the tail of a garbage truck; the height of the L-shaped middle plate is equal to that of a tail baffle of the garbage truck; the connecting hopper comprises a bottom plate,side plates, a first baffle, a first connecting rod and a second baffle; the side plates are positioned on two sides of the bottom plate; the first baffle is arranged between the two side plates andis positioned on the rear side of the bottom plate; the top ends of the two side plates are connected by the first connecting rod; the second baffle is arranged between the top end of the first baffleand the first connecting rod; a first electric retractable rod which penetrates through the tail baffle, is fixed in the garbage truck and can stretch and retract front and back is arranged on the rear side of a vertical section of the L-shaped middle plate; a first rotating motor is arranged at the top end of the vertical section; the first rotating motor is fixedly connected with the first connecting rod through a second electric retractable plate; third baffles are arranged on the left side and the right side of the second electric retractable plate; a second rotating motor is arranged onthe front side of the vertical section; the second rotating motor is connected with a third rotating motor through a third electric retractable rod; and the third rotating motor is connected with thefirst baffle through a second connecting rod.

The invention belongs to the technical field of constructional engineering construction, and particularly relates to a construction method of a beam-slab tower crane foundation structure. The method is used for solving the problems of bearing capacity and safety of the existing tower crane foundation structure. The construction method comprises the steps that 1, supporting columns in a tower cranefoundation structure are constructed, and the supporting columns are distributed at four corners; 2, a bottom film of a supporting beam is paved above the supporting column, binding reinforcing steelbars of the supporting beam, and a tower crane base and connecting pieces thereof are accurately positioned and mounted; 3, a side die of the supporting beam is constructed, and a bottom die of the bearing platform plate is constructed above the supporting beam; and 4, steel bars of the bearing platform plate are bound, concrete of the supporting beam and the bearing platform plate is integrallypoured after mold sealing, and tower crane foundation structure construction is completed. The supporting beams are used as vertical bearing components of the tower crane foundation, the bearing platform plates and reinforcing steel bars on the upper portions of the supporting beams are used for resisting tension together, the material structure consumption of the tower crane foundation is reducedwhile the integrity of the tower crane foundation is guaranteed, and cost is saved. The bearing platform plate is used for providing safety protection for operators below the tower crane foundation.

The invention discloses a welding robot with a positioning function. The welding robot comprises a robot body, a welding wire unwinding roller is arranged at the top of the robot body, a welding assembly is arranged on one side of the welding wire unwinding roller, the welding assembly is composed of a mounting frame, an adjusting device, a swing welding device and a welding gun, the welding gun is arranged at the bottom end of the mounting frame, a tensioner is arranged on one side of the mounting frame, and a frame rod is arranged on one side of the tensioner. The welding gun is placed at the top of a weld joint through the robot body, the welding angle and the precise position of the welding gun are adjusted through the mounting frame and the adjusting device, precise positioning and flexible steering welding of the welding gun are achieved, the welding robot adapts to weld joint welding in various environments, and adjustment operation is facilitated; the swing welding device is arranged, so that a flat annular part reciprocates rightwards and leftwards to realize reciprocating swing of an L-shaped plate, the welding gun can conduct preset swing welding on the weld joint, and the welding requirements of a welding workpiece with the wide weld joint, thick workpiece and wide welding bead requirement are met.

The invention provides a movable hanging basket safety lifeline and building joint protection device. The movable hanging basket safety lifeline and building joint protection device comprises a sliding rail, a sliding assembly and a connecting plate, and the sliding assembly is slidably connected with the sliding rail in the length direction of the sliding rail; and the first end of the connecting plate is connected with the sliding assembly, and a protection pipe used for installing the movable hanging basket safety lifeline is arranged at the second end of the connecting plate. The sliding assembly is slidably connected to the sliding rail in the length direction of the sliding rail, the connecting plate and the protection pipe are driven to move, the movable hanging basket safety lifeline can be protected through the protection pipe, and the movable hanging basket safety lifeline can be driven to move along with the sliding assembly; and the movable hanging basket safety lifeline can move along with the movement of a hanging basket operator, the movement of the movable hanging basket safety lifeline is protected through the protection pipe, the deformation of the lifeline at a knot is reduced, the stress stability is ensured, the movable hanging basket safety lifeline is not damaged, and the effect of prolonging the service life of the movable hanging basket safety lifeline is achieved.

A waterproof and shock-absorbing system device for the interface of a prefabricated rectangular comprehensive pipe gallery and its installation method belong to the technical field of underground structure comprehensive pipe gallery. The waterproof and cushioning system device of the prefabricated rectangular comprehensive pipe gallery interface includes correspondingly connected segment socket parts and segment socket parts. The segment socket part includes a vertical part one, an inclined part one and a vertical part two, so The segment socket portion includes a vertical portion 3, an inclined portion 2 and a vertical portion 4. The inclined portion 1 is provided with at least one wedge-shaped groove, and a U-shaped rubber block is provided in the wedge-shaped groove. The surface of the U-shaped rubber block is The cemented rubber layer expands when exposed to water, and the segment socket part and the segment socket part are connected through several shock-absorbing bolts. The gap between the vertical part one and the vertical part three is provided with a waterproof reserve system. The waterproof cushioning system device and installation method of the prefabricated rectangular integrated pipe gallery interface can effectively prevent water from entering the integrated pipe gallery cabin, improve the service life and safety performance of the structure, and improve the smooth operation capability of the interface.

The invention discloses a steel truss girder supporting system suitable for an asymmetric suspended monorail and belongs to the field of suspended monorails. Through arrangement of the steel truss girder supporting system correspondingly composed of an upper chord, a first lower chord and a second lower chord, the asymmetric suspended monorail is effectively supported, wherein the cross section ofthe steel truss girder supporting system is triangular. The steel truss girder supporting system suitable for the asymmetric suspended monorail is simple in structure, easy and convenient to arrange,capable of effectively meeting the requirements for supporting and operation of the asymmetric suspended monorail, reducing use of steel, improving the reliability and stability of the supporting system, shortening the construction period of the supporting system and reducing the construction cost of the supporting system, good in application and popularization value and wide in application prospect.

The invention provides a space curved surface type underwater sealing element and a mounting method. The sealing element comprises an enclosure frame, a sealing gasket and a cover plate which are sequentially overlapped, the enclosure frame and the cover plate are respectively provided with a plurality of enclosure frame grooves and cover plate grooves which are mutually sleeved, and the sealing gasket is extruded during installation and fills the enclosure frame grooves and the cover plate grooves, and therefore, a good sealing effect is achieved. Meanwhile, the pressure of lubricating grease at one side of the cover plate on the cover plate is equivalent to or greater than the pressure of seawater at the other side of the cover plate on the cover plate, so that the seawater is prevented from entering the lubricating grease cavity. When the space curved surface type underwater sealing element is mounted, the cover plate is fixed through mounting bolts and nuts, so that the sealing gasket is subjected to the pressure of the cover plate to achieve expected plastic deformation, meanwhile, stress generated in the mounting process of the cover plate is released, then the mounting bolts and the mounting nuts are dismounted one by one, and the fastening screws are mounted one by one; therefore, the stress stability and the overall sealing effect are guaranteed to the maximum extent.

The invention provides a rotating joint connecting device for a prefabricated component inclined strut and an application method. The rotating joint connecting device aims at solving the problems that when an inclined strut used for adjusting the perpendicularity is mounted through a PC component, the inclined strut is subjected to eccentric compression due to off position of pre-buried parts, and thereby mounting quality of the whole prefabricated component is influenced. The connecting device comprises an embedded plate, a 360-degree rotatable joint and a limiting component, the embedded plate is fixedly connected with the PC prefabricated component through embedding parts, the 360-degree rotatable joint is perpendicular to a prefabricated wall component or a prefabricated floorslab component and fixedly connected to the embedded plate, and the limiting component penetrates through the end of the inclined strut and is fixedly connected with the free end of the 360-degree rotatable joint. By means of the connecting device, hinge of joint positions can be achieved, and the situation that additional stress is generated to slabs and support bars is avoided. The application method comprises the following steps: 1, fixedly connecting the two ends of the inclined strut with the prefabricated wall component and the prefabricated floorslab component respectively; 2, rotating the inclined strut, so that the end of the inclined strut is perpendicular to the embedding parts.