211results about "Bridge applications" patented technology

Disclosed in the present invention is a spatial three-dimensional suspended corridor, comprising a suspended corridor that connects indoor floor passageways, wherein diagrid columns are provided on all edge portions of the indoor floor passageways; the suspended corridor comprises several fixed segments and several bridge deck segments from bottom to top; and the fixed segments or corner segments are all connected to the corresponding bridge deck segments by means of node connecting components. In the present invention, by means of some implementable tests and on the basis of having a preliminary understanding of the stress performance of a corridor structure, a corridor simulation model is also established, parameters of the model are continuously optimized for repeated debugging, preliminary stress performance calculations are then performed and compared with results of some previously conducted tests, and if results are quite similar to the test results, this proves that the model is relatively optimal, that is, an optimized model is obtained, and then this model is used to analyze other more complex performances of the corridor. The optimization objective of the present invention is to make the structure and stress of an aerial corridor safer, more reliable and more comfortable.

The trestle comprises a main bridge, a moving seat and a rock drilling mechanism, the main bridge and the moving seat can move longitudinally, the rock drilling mechanism can swing transversely, the main bridge is provided with a passing part allowing vehicles to pass and a longitudinal moving rail allowing the moving seat to move, the longitudinal moving rail is arranged below or on the side face of the passing part, and the rock drilling mechanism is connected with the moving seat. The excavation method comprises the steps that S1, the main bridge walks in place; s2, the front approach bridge moves forwards to be in lap joint with a to-be-excavated step, a protective cover moves to an avoiding position, a moving seat drives a rock drilling mechanism to move forwards, and the rock drilling mechanism conducts shot hole rock drilling on the to-be-excavated inverted arch end face; s3, the rock drilling mechanism and the front approach bridge retreat to the safety area, and the protective cover moves to the front of the rock drilling mechanism; s4, charging and blasting in each shot hole of the inverted arch, and removing slag; and S5, the steps S2 to S4 are executed repeatedly till the whole construction interval of the inverted arch is excavated. The device has the advantages that the structure is reliable, rock drilling and vehicle passing deslagging can be considered, and the construction progress can be improved.

The utility model provides a trestle structure for bridge pier construction, and relates to the technical field of bridge construction, a bracket is arranged above a bridge pier, two groups of trestle frames are spliced above the bracket, limiting plates are arranged above the two groups of trestle frames, the middle parts of the limiting plates are fixedly connected to the trestle frames, and the two ends of the limiting plates are fixedly connected to the bracket; trestle plates are arranged on the limiting plates and the upper surface of the trestle frame. Due to the arrangement of the limiting plates, when the length of the bracket is large, the connecting positions of the bracket and the trestle frames on the two sides are increased, the contact area for supporting the trestle frames is also increased, and the trestle can walk on the trestle plate more stably; the trestle frames are fixed to the brackets through the limiting plates, the lower portions of the ends of all the trestle frames are restrained by the brackets, the upper portions of all the trestle frames are restrained by the limiting plates, the limiting plates apply downward force to the trestle frames at the two ends of the trestle frames, the risk of deformation of the trestle frames is reduced, the trestle frames are kept straight, the quality of the trestle is improved, and the service life of the trestle is prolonged.

The invention relates to an inverted arch trestle system and a construction method, and belongs to the technical field of tunnel trestles, the inverted arch trestle system comprises a bridge body, a front approach bridge is hinged to one end of the bridge body, a rear approach bridge is hinged to the other end of the bridge body, a front support is arranged at one end of the bridge body, and a rear support is fixed to the other end of the bridge body; the front support comprises supporting legs, each supporting leg comprises an inner barrel, an outer barrel, a base plate and a hydraulic cylinder, the hydraulic cylinders are vertically located in the outer barrels, the inner barrels are slidably connected with the outer barrels, the piston ends of the hydraulic cylinders are fixedly connected with the inner walls of the tops of the inner barrels, and one ends of bodies of the hydraulic cylinders are detachably connected with the inner walls of the bottoms of the outer barrels. A limiting assembly used for controlling whether one end of a hydraulic cylinder body is connected with the bottom of the outer barrel or not is arranged on the outer barrel. An inserting hole is formed in the vertical side wall of the outer barrel, when the length of the hydraulic cylinder adjusting supporting leg needs to be indirectly increased, the base plate is horizontally inserted and embedded into the outer barrel, one end of the hydraulic cylinder body is rotationally connected to the top of the base plate, and the effects that the adjusting flexibility of the trestle in a tunnel is improved, and the adjusting limitation is reduced are achieved.

The utility model relates to a trestle for turning around vehicles in a tunnel, which comprises a trestle main body, a supporting structure for supporting the trestle main body, a front approach bridge arranged at the front end of the trestle main body and a rear approach bridge arranged at the rear end of the trestle main body, a turning-around device is embedded on the upper surface of the trestle main body, and the supporting structure comprises a fixed supporting leg and a movable supporting leg. The fixed supporting legs are arranged at the two ends of the trestle body, the movable supporting legs are arranged in the middle of the trestle body, each of the fixed supporting legs and the movable supporting legs comprises a sleeve and an inner column arranged in the sleeve in a sleeved mode, the sleeves of the fixed supporting legs are fixedly connected with the trestle body, and the sleeves of the movable supporting legs can move in the length direction of the trestle body through walking devices. By arranging the turning device, when a vehicle needs to turn around, the vehicle can be driven onto the trestle and steered through the turning device, and passing of other vehicles is not affected, so that the use efficiency of a road is greatly improved, meanwhile, the trestle can adapt to the installation requirements of different heights, production standardization of the trestle is facilitated, and the application range of the trestle is wider.

A pipe gallery for offshore chemical pipeline laying relates to a pipe gallery, a plurality of square pipe boxes (3) corresponding in head and tail are arranged at intervals above the sea surface (9), two oppositely arranged connecting square pipes (7) are arranged between every two adjacent square pipe boxes (3), two pipe cavities (13) of the adjacent two square pipe boxes (3) and the cavities (15) of the two connecting square pipes (7) located between the adjacent two square pipe boxes (3) are through, and the '' rectangle '' shaped cover plate (5) covers the two inclined waist surfaces outside the two opposite connecting square pipes (7). The application realizes the effective weight decomposition of the square pipe boxes with large self-weight by arranging a plurality of square pipe boxes corresponding in head and tail and with large self-weight at intervals above the sea surface and hanging two oppositely arranged connecting square pipes with small self-weight on the end portions of the two square pipe boxes between every two adjacent square pipe boxes, and overcomes the problem of unstable bottom plate of the hanger and difficult docking when docking on the sea surface.

The utility model relates to an integral rapidly-assembled aqueduct bent frame column construction operation platform which comprises a vertical rod support. Three layers of operation bedplates are arranged in the height direction of the vertical rod bracket at equal intervals; the guardrails are installed on the periphery of the vertical rod support and located between the adjacent working platens. The one-truss operation module is composed of the vertical rod support, the three layers of operation platens and the guardrails, the adjacent operation modules are connected through the hook-shaped plug pins, the operation modules can be modularly produced in batches, and when the operation modules are used, only the corresponding number of operation modules need to be selected according to the heights of the framed bent columns, and the operation modules can be conveniently assembled. The aqueduct bent frame column construction operation platform can be assembled by vertically stacking the multiple truss operation modules and inserting the hook-shaped plug pins, during disassembly, only the hook-shaped plug pins need to be pulled out and the operation modules need to be disassembled, compared with a traditional on-site building and scaffold disassembly mode, the operation modules of the construction operation platform can be repeatedly used, and the construction efficiency is improved. Assembly and disassembly are easy and fast, time and labor are saved, and the construction progress is effectively accelerated.

The invention discloses a multifunctional safety type connecting bridge system for an LNG (liquefied natural gas) filling wharf boat, which comprises a connecting bridge body, the connecting bridge body comprises an LNG equipment cabin and a pedestrian guardrail, an LNG pipeline group is laid in the LNG equipment cabin, and two ends of the LNG pipeline group are respectively communicated with a fixed pipeline of the connecting wharf boat and are output / input outwards; the LNG equipment cabin comprises an anti-explosion partition plate and an anti-explosion sealing top plate, the anti-explosion partition plate and the anti-explosion sealing top plate jointly define a cabin space for laying of the LNG pipeline set, the pedestrian guardrail is fixedly connected to the top of the LNG equipment cabin, and the pedestrian guardrail and the LNG equipment cabin define a pedestrian path; the LNG equipment cabin is movably connected with the wharf boat and the wharf through universal hinge supports. Through mechanical design and flexible connection design of vertical space layering, physical isolation of a dangerous source and a personnel channel is achieved in a single bridge body, safety is improved, the overall design is miniaturized, and the device is more suitable for transformation projects with limited space and can adapt to wharf boat operation under various hydrological conditions.

The invention relates to the technical field of water conservancy and hydropower ecological protection, in particular to a fishway with a traffic function and an operation method of the fishway. Each spliced fishway comprises a fixed fishway section and rotary fishway sections arranged at the upstream end and the downstream end of the fixed fishway section; connecting bridges are respectively arranged in the river channels on the upstream side and the downstream side of the dam body; a tempered glass plate is laid on the top of the rotary fishway section. When the rotary fishway section rotates to be in a butt joint state with the connecting bridge, the rotary fishway section and the connecting bridge are spliced together to form a bridge body. In a fish passing season, the rotary fishway sections are spliced at the two ends of the fixed fishway section to form a spliced fishway for executing a fish passing mode; and in a non-fish passing season or other time periods where fish passing is not needed, the rotating fishway section is rotated to be in a butt joint state with the connecting bridge, and the rotating fishway section and the connecting bridge are jointly spliced to form a bridge body for executing a traffic mode.

The invention provides a vehicle self-adaption compatible open island type elevated BRT station system which comprises an open island type elevated station structure, the elevated station structure comprises a ground layer and a two-layer composite layer arranged above the ground layer, and the two-layer composite layer comprises an open pedestrian overpass and an island type platform. The open type pedestrian overpass and the island type platform are of an integrated station-hall-free structure. The elevated station structure further comprises a central vertical traffic core connected with the ground layer and the two-layer composite layer. Passenger doors are arranged on the left side and the right side of a vehicle body of the BRT vehicle, a vehicle control system and an in-vehicle fare collection system are arranged in the BRT vehicle, and the vehicle control system is configured to automatically or manually control the passenger door on the corresponding side to be opened or closed according to the type of a stop platform. Through cooperation of station structure innovation, operation mode opening and vehicle configuration intelligence, the problems that a traditional BRT system is large in occupied area, poor in compatibility and rigid in dispatching can be solved.

The invention discloses a male pipe combined construction steel truss girder bridge, and relates to the field of steel truss girder bridges, the male pipe combined construction steel truss girder bridge comprises a bridge deck slab and a cross beam arranged below the bridge deck slab, a plurality of web members are arranged between the cross beam and the bridge deck slab, the web members are located on the two sides of the cross beam, and the web members, the bridge deck slab and the cross beam jointly define a pipeline space used for containing a plurality of pipelines; wherein the pipeline space comprises a first pipeline space body and a second pipeline space body which are arranged in the bridge direction of the steel truss girder bridge, the first pipeline space body is located above the second pipeline space body, and a pipeline support used for containing pipelines is arranged between the first pipeline space body and the second pipeline space body. Multifunctional combined construction of the road and the pipeline is achieved, various traffic and municipal demands under the condition of river crossing, river crossing and other channel resource shortage conditions are met, the public pipe combined construction design can reduce the cost and resource occupation of independent construction of a pipeline bridge, meanwhile, the pipeline and the road are integrated in the same bridge structure, and the construction cost is reduced. And unified maintenance and management are facilitated.

The invention discloses a self-adaptive temperature control system of a large-span cable bridge and an installation method of the self-adaptive temperature control system. The self-adaptive temperature control system comprises a concrete support, a large-span bridge, a movable base, a limiting support, a fixed cable channel, a bridge cable channel, a first movable clamp, a second movable clamp, a movable wedge, a linear actuator, a third movable clamp, a fixed clamp and a cable. The two ends of the large-span bridge are arranged on the concrete supports on the corresponding sides through the movable bases and the limiting supports. A fixed cable channel arranged along the cable extension direction is arranged in the concrete support, and a through bridge cable channel is formed in the large-span bridge; the cable is fixedly laid in the channel through a plurality of fixing clamps. According to the scheme, the structural stability of the concrete support and the large-span bridge is protected, and the problem that in the prior art, a cable at the end of a large-span cable bridge is excessively abraded is solved.

The utility model provides an assembly type arch aqueduct supporting frame which comprises an arch rib, buttresses are installed at the bottom of the arch rib, a plurality of framed bent columns are arranged at the top of the arch rib, the tops of the framed bent columns are connected with an aqueduct body through an installation mechanism, and the installation mechanism comprises a connecting base and a slope installation column. A limiting groove is formed in the side edge of the inclined surface mounting column, the connecting seat is mounted at the top of the framed bent column, a mounting seat is mounted at the top of the connecting seat, a clamping assembly matched with the limiting groove is arranged in the mounting seat, and a pedal assembly matched with the clamping assembly is arranged on the outer surface of the mounting seat. Compared with the prior art, the aqueduct has the advantages that the aqueduct structure is formed by splicing the plurality of aqueduct bodies in a modularized mode, so that when a certain section of aqueduct body of the aqueduct is damaged, the aqueduct body at the damaged position can be replaced, and the maintenance cost of the aqueduct body is reduced.

The utility model discloses a river-crossing pipeline structure which comprises a foundation, two buttresses are poured on the foundation, the two buttresses are arranged on two banks of a river channel, and a pipeline main body structure is fixedly connected between the two buttresses. According to the river-crossing pipeline structure, the rigidity and the stability of the river-crossing pipeline are improved, the application range of the river-crossing pipeline is expanded, the overall sectional area of the structure is increased by utilizing the strength of the river-crossing steel pipe and adding the reinforced profile steel at the bottom, the structural stress in the middle of a large bending moment is reduced, and therefore when the span is large, the rigidity and the stability of the river-crossing pipeline are improved. Structures such as pipe bridges and trusses can be prevented from being used, the steel pipe can still be used for directly crossing the river channel, the application range of the river-crossing pipe bridge is widened, and remarkable economic benefits are achieved.

The trestle comprises a main bridge and a rock drilling trolley, a front approach bridge capable of moving longitudinally and a lifting mechanism used for driving the rock drilling trolley to ascend and descend are arranged at the front end of the main bridge, the lifting mechanism is detachably connected with the rock drilling trolley, and a rock drilling mechanism is arranged on the rock drilling trolley. The excavation method comprises the steps that S1, the front end of the front approach bridge is in lap joint with a to-be-excavated step, the rock drilling trolley is located below the front approach bridge, and the rock drilling mechanism conducts shot hole rock drilling; s2, after rock drilling of all shot holes is completed, the front approach bridge retreats to make up an ascending space, and a lifting mechanism is connected with the rock drilling trolley and then drives the rock drilling trolley to ascend; s3, the front approach bridge moves forwards to enable the front end to be overlapped on the to-be-excavated step again, the lifting mechanism lowers the drill jumbo to the front approach bridge, the drill jumbo retreats to the main bridge through the front approach bridge, and then the front approach bridge retreats to the main bridge; and S4, the blastholes are filled with explosives for blasting. Rock drilling and vehicle passing deslagging can be considered, the construction efficiency can be improved, and the safety is good.

The invention relates to a strip mine end slope transportation bypass bridge which comprises supporting bridge columns and cross beams, the multiple supporting bridge columns are sequentially arranged at intervals, and a first passing space is formed between every two adjacent supporting bridge columns in the length direction of the strip mine end slope transportation bypass bridge. The cross beam stretches across the supporting bridge columns in the width direction and / or the length direction of the strip mine end slope transportation bridging and is connected with the tops of the supporting bridge columns, a pavement structure is arranged on the top of the cross beam, a second passing space is formed above the pavement structure, and the first passing space and the second passing space are arranged in an included angle mode. The strip mine end slope transportation bypass bridge is mainly assembled and built by metal materials, can adapt to various road-crossing topographic conditions in the longitudinal direction, can adapt to traffic requirements in the transverse direction, is high in topographic adaptability, does not need to specially design various structures according to the topography, and is good in steel structure integrity stability, safe and reliable in structure and easy to machine and transport.

The utility model provides trench crossing supporting equipment. The ditch passing supporting equipment comprises an upper platform, a supporting frame and a moving mechanism, and the upper platform is installed at the top of the supporting frame; the supporting frame comprises at least two supports arranged in the X direction at intervals and a first connecting beam connected between the at least two supports. The moving mechanism comprises an axle, wheels installed on the axle and a telescopic rod capable of stretching out and drawing back in the Z direction, and the wheels move in the X direction. The telescopic rod is connected between the first connecting beam and the axle; when the telescopic rods stretch out, the lower surfaces of the supports are higher than the lower surfaces of the wheels. When the telescopic rods are compressed, the lower surfaces of the wheels are higher than the lower surface of the support, or the lower surfaces of the wheels are flush with the lower surface of the support. The supporting device can move, the supporting device can be moved on site according to the route of the cleaning vehicle, and efficient cleaning is achieved.

The utility model belongs to the field of constructional engineering, and particularly relates to an assembly type foundation pit transportation channel. Comprising a supporting structure, a cross beam, straight plates, bent plates and protective components. The supporting component comprises at least one bottom column part vertically connected with a supporting bottom column and a supporting frame in threaded connection with the top of the bottom column part, the supporting structure comprises two supporting components vertically arranged on the ground and a cross beam in threaded connection with the tops of the two supporting components, and protection components are symmetrically arranged at the two ends of the cross beam; the protection parts close to each other are connected in sequence; a plurality of groups of supporting structures are uniformly arranged at the bottoms of the straight plates and the bent plates, at least one straight plate is sequentially connected to form a straight plate path, at least one bent plate is sequentially connected to form a bent plate path, and the bent plate path is arranged between the two straight plate paths.

According to the trestle structure using the underground diaphragm wall and the top ring beam as the foundation near the subway foundation pit, during construction, a foundation pit first support is arranged between the top ring beam and the underground diaphragm wall, a limiting block is arranged on the foundation pit first support, an overhanging trestle plate is arranged on the top ring beam, and the overhanging trestle plate is arranged on the top ring beam; a trestle plate is installed on the foundation pit first support between the overhanging trestle plate and the limiting block and the top ring beam, a left partition plate is arranged on the left side of the trestle plate and on the top ring beam, and a right partition plate is arranged on the right side of the trestle plate and on the foundation pit first support. A gap between the cantilever trestle plate and the left partition plate on the top ring beam is filled with left filling concrete, and a gap between the right partition plate and the limiting block on the foundation pit first support is filled with right filling concrete. According to the utility model, the requirements of excavator standing and earthwork vehicle running can be met, the upper part of a subway can be effectively prevented from bearing a larger load, and a subway tunnel is effectively prevented from generating larger deformation.

This invention relates to the field of pipeline crossing structure safety technology in oil and gas transportation and water conservancy distribution engineering, specifically to a graded limiting design method and device for pipeline bridge supports based on time history analysis. The design method includes disc spring selection and parameter design, initial setting of graded limiting structure parameters, time history analysis verification and parameter optimization, device assembly and construction, and graded limiting layout. The supporting device includes disc spring assemblies, disc spring bases, upper pressure plates, limiting supports, and other components. The disc spring assemblies are made of stacked alloy steel, and the limiting supports have a Z-shaped structure with stiffening ribs. Each component is precision-machined and wear-resistant, and is fixed to a PTFE sliding plate with high-strength bolts. A sleeve provides sealing protection. This invention features a refined design, convenient installation, precise limiting, high stability, and flexible adjustment of the gap and disc spring combination to adapt to different pipeline bridge working conditions. It can effectively limit the lateral over-limit displacement of the pipeline bridge, avoid disc spring eccentric instability, and ensure the structural safety of the pipeline bridge under loads such as earthquakes and water hammer.

The application discloses an emergency repair method for a full-precast assembly type steel reinforced concrete structure, and comprises the following steps: 1, determining the position of the type steel reinforced concrete structure impacted; 2, non-destructive testing the position of the type steel reinforced concrete structure impacted; 3, determining the damage level of the position of the type steel reinforced concrete structure impacted; 4, determining the repair and construction scheme corresponding to each damage level; 5, determining the specific structure composition of the full-precast impact-resistant type steel reinforced concrete column, beam and wall structure. The application divides the damage of the type steel reinforced concrete structure into four levels by means of artificial visual observation and non-destructive testing of the type steel reinforced concrete structure impacted, in combination with the ratio of the actual impact force and the shear capacity of the oblique section, so that different emergency repair schemes can be formulated according to different damage conditions, the engineering facility use function can be quickly restored, and the use safety of the engineering structure can be ensured.

The utility model relates to the technical field of hydraulic engineering, and discloses an aqueduct body inner membrane compression bar system which comprises I-shaped steel, the bottom end of the I-shaped steel is connected with a supporting rod, the I-shaped steel is provided with a finish rolling nut, and the bottom end of the supporting rod is fixedly provided with a connecting rod. The I-shaped steel, the connecting rods and the spiral supporting rod structures are arranged, the pressing rod system is assembled outside a site, the pressing rod system is hoisted to a construction face at a time after all the assembling is completed, the I-shaped steel and concrete are fixed through the deformed steel bars and the finish rolling nuts, and the connecting rods are fixed to the concrete through the transverse connecting pieces. The three spiral supporting rod structures play a role in supporting a steel formwork on the inner side of a U-shaped aqueduct body, the distance between the pressing rod systems in the longitudinal direction is 1.5 m, the pressing rod systems and a steel formwork on the outer side of the aqueduct body are connected into a whole, the formworks can be integrally spliced off site, the formworks can be integrally hoisted to a working face after being spliced, and the formworks can also be integrally dismantled at a time when being dismantled.

The invention relates to the technical field of rail transit, in particular to a construction method of a permanent large-span platform layer structure, a steel truss system is assembled under the prefabrication working condition, the steel truss system is formed by splicing a plurality of Bailey steel sheets, and the transversely adjacent Bailey steel sheets are fixedly connected through a transverse splicing structure to form a whole; a profiled steel sheet bottom die is welded on a steel truss system through a shear connector, a steel bar truss is welded on the profiled steel sheet bottom die, then concrete is poured to form a steel bar truss floor support plate, and the steel bar truss floor support plate and the steel truss system are fixedly connected to form a platform layer structure prefabricated assembly section of an integral structure. The method has the advantages that the assembly degree is high, the quality is guaranteed, the construction speed is high, the problem of a large-span structure without columns in the middle can be solved, cast-in-place large-size components and a field complex tensioning process are not needed, and meanwhile the vibration influence of a train is reduced to a great extent; and the special-shaped steel member is directly connected with the composite floor, so that the integrality is better.

The invention discloses a replaceable coal conveying trestle sliding support anti-falling device which comprises anti-falling steel sleeves, the anti-falling steel sleeves are arranged on the outer sides of the four edges of a sliding support at intervals, the sliding support is arranged on the upper surface of a supporting component in the longitudinal direction, and the supporting component is fixedly installed on a coal conveying trestle body structure. Comprising two transverse limiting assemblies and two longitudinal anti-skid assemblies, and the two transverse limiting assemblies and the two longitudinal anti-skid assemblies are fixedly connected through second bolts; the anti-falling steel sleeve is fixedly connected with the supporting component through a plurality of first bolts. The invention belongs to the technical field of coal conveying protection equipment, and solves the problems that in the prior art, anti-falling parts of a sliding support of a coal conveying trestle are unreasonably arranged, worn and rusted parts cannot be rapidly replaced under the condition that production is not interrupted, and the whole support is prone to falling off and falling off. The device has the advantages of high structural safety, simplicity and convenience in installation, wide applicability, convenience in maintenance, quickness in replacement and the like.

The application discloses an aqueduct cast-in-place support structure, which comprises a bent cap cast on the top of a pier column and a beam support arranged between the bent caps of two adjacent pier columns. The bent cap is provided with a pair of hanging pieces on the left and right sides respectively. Each pair of hanging pieces is arranged on the front and back sides of the bent cap and is fixedly connected through a fixing mechanism. The left and right sides of the hanging piece are respectively provided with a support seat and a mounting seat for mounting a lowering mechanism. The two ends of the beam support are detachably connected to the lower ends of the corresponding hanging pieces. The top of the beam support is provided with a formwork system, and the aqueduct is cast on the formwork system. The two ends of the aqueduct are supported on the bent caps of the two adjacent pier columns and are supported on the support seats of the corresponding hanging pieces. The support seat is supported on the bent cap. The application further discloses a method for dismounting the beam support of the aqueduct cast-in-place support structure. The aqueduct cast-in-place support structure and the method for dismounting the beam support thereof can reduce the loosening of the hanging pieces during the dismounting of the beam support and improve the overall stability.

The invention discloses a construction method of a suspended bailey beam aqueduct body formwork. The construction method comprises the following steps that firstly, construction preparation is conducted; secondly, a bearing beam is installed; thirdly, a lifting sand box is installed and filled; fourthly, a bailey beam support is erected; fifthly, the bailey beam support is pre-pressed; sixthly, aqueduct formworks are installed; seventhly, concrete is poured in a layered mode; eighthly, the inner formwork is dismantled and maintained; ninthly, the movable groove-crossing reversely-hung working platform is in place; tenthly, the pressure of the lifting sand box on one side of the aqueduct is relieved, the outer formwork is removed, and the bailey beam support is removed; eleventhly, the lifting sand box on the other side of the aqueduct is subjected to pressure relief, an outer formwork is removed, and a bailey beam support is removed; 12, the bottom formwork and the bailey beam support at the bottom are reserved and maintained; and 13, pressure relief of the lifting sand box at the bottom of the aqueduct, dismantling of the bottom formwork and dismantling of the bailey beam support are conducted, the foundation reinforcement problem can be avoided, efficiency can be improved, cost can be reduced, and the construction period can be shortened.

The utility model discloses a buckle piece and a solid footpath plate. The buckle piece comprises a buckle main body, limiting plates are arranged at the two ends of the buckle body, and each limiting plate is provided with at least one locking opening. One side of the buckle main body is provided with one or more lug plates, and the lug plates can be bent to form bayonets; a first limiting space is formed between the two limiting plates in the length direction of the buckle body. A second limiting space is formed between the locking opening and the clamping opening in the width direction of the buckle body. The device can be installed without bolts, and is convenient to install, high in stability and high in safety.