2954results about "Railway track construction" patented technology

The invention relates to the technical field of polishing, and discloses an intelligent steel rail polishing control method which comprises the following steps: acquiring surface and internal defect data of a steel rail through laser and ultrasonic fusion detection, discretizing the data into multi-dimensional nodes, and constructing a dynamic graph model comprising a microscopic-macroscopic dual-cluster neural network to predict a defect evolution trend; based on fractal dimensions and information entropy, multi-source data are dynamically fused, abnormities are eliminated, chaotic optimization and wear prediction are adopted to generate global optimal polishing parameters, and finally parameter dynamic adjustment is achieved through closed-loop feedback of pulse frequency and control errors. Steel rail defect collaborative perception is achieved through a multi-scale dynamic graph model, fractal-entropy weight dynamic fusion is combined to enhance data reliability, global optimal parameters are generated through chaos optimization and abrasion prediction, accurate grinding is achieved through pulse-error closed-loop control, and the method is simple and convenient to implement. The problems of data fusion failure, defect response lag, parameter local optimization and insufficient control precision in the prior art are solved.

The invention belongs to the technical field of ballastless track paving construction, and particularly relates to a paving system for ballastless track paving construction, which comprises a sample steel rail used for detachably connecting a plurality of sleeper blocks and driving the sleeper blocks to move; the sleeper fixing frame is used for fixing the relative positions of the two sample steel rails; the sleeper pier fine adjustment mechanism comprises a height fine adjustment mechanism, a center line fine adjustment mechanism, a lifting adjustment mechanism and a transverse groove piece; the fixed cross rod is arranged in a groove cavity of the transverse groove piece in a sliding manner; the center line fine adjustment mechanism is used for transversely pushing the fixed cross rod; the height of the two ends of the fixed cross rod is adjusted through the lifting adjusting mechanism and the height fine adjusting mechanism respectively. According to the scheme, the mounting positions of the sleeper blocks can be accurately adjusted; adjustment of the center line position and the height position of batched sleeper blocks can be achieved, so that the ballastless track paving construction speed is increased, and the construction efficiency is improved.

The invention discloses a track board pavement fine adjustment trolley. Comprising a supporting frame body, a plate grabbing mechanism arranged on the supporting frame body, a plurality of fine adjustment claws arranged on the periphery of a track plate, a twisting mechanism arranged on the plate grabbing mechanism and used for adjusting the fine adjustment claws, a walking mechanism arranged at the bottom of the supporting frame body and a control box arranged on the side face of the supporting frame body. A control module is arranged in the control box; the fine adjusting claw comprises an adjuster base, a vertical adjusting screw rod, a transverse adjusting screw rod and a steering gear; the vertical adjusting screw rod is connected to the adjuster base and is perpendicular to the adjuster base, and the vertical adjusting screw rod moves up and down by rotating the vertical adjusting screw rod. The device is simple in structure and reasonable in design, grabbing, lifting, transverse moving, longitudinal moving and fine adjusting of the track plate are achieved, paving and fine adjusting work of the double-line track plate in the ballastless track can be rapidly completed, frequent manual intervention is not needed, manpower and material resources are saved, and the construction efficiency is improved.

The invention belongs to the technical field of steel rail collecting and unloading, and discloses a modularized urban rail car which comprises a bottom frame, a steel rail lifting device, a raceway beam, a steel rail guiding anti-overturning device, a safety door and a rail pulling winding device, and a notch is reserved in the middle of the bottom frame so that a steel rail can be put down or taken back in the middle of the bottom frame. Comprising a plurality of modularized urban rail steel rail vehicles, and the invention further discloses a rail collecting and unloading method which comprises the following steps that S1, the urban rail steel rail vehicle set is adopted; s2, when the middle old steel rail is recycled, a rail pulling winding device is started, and a steel rail lifting device is started to synchronously lift the steel rail to a raceway beam; s3, when a new steel rail in the middle is unloaded, the end of the steel rail is dragged to be in complete contact with the ground, the vehicle set moves forwards, and the remaining part of the steel rail is unloaded; and S4, when the steel rails are recovered or unloaded, the steel rails are lifted to the raceway beam or lifted to the ground. The method has the advantages that long and short steel rails are recovered and unloaded at the same time, and the requirement for centrally and laterally recovering and unloading the rails is met.

The invention provides a maglev traffic track structure and a construction method thereof. The maglev traffic track structure comprises a bridge deck, a maglev track assembly and an induction plate assembly. The magnetic levitation rail assembly comprises a magnetic levitation rail, a hexagon nut, a gasket, a thin nut and a screw. The induction plate assembly comprises an iron core, an aluminum plate, shear nails and screws. The iron core is vertically welded and fixedly connected with the shear nails, the shear nails and the bridge deck are cast and anchored into a whole, the iron core is arranged on the upper end face of the bridge deck, and the aluminum plate is installed on the upper end face of the iron core through screws; the construction method comprises the steps that the prefabricated bridge deck slab is modularly poured in a factory, the magnetic levitation rail is installed, adjusted and locked in the factory, the levelness and straightness of the magnetic levitation rail are measured again, and the bridge deck slab is installed on a construction site. According to the invention, high-precision, high-efficiency and low-cost installation of the maglev traffic track is realized.

The electromagnetic induction normalizing device comprises a flat car, the flat car is provided with a top plate and a bottom plate, one side of the flat car is of an open structure, and a cooling water tank and a power source are arranged in the flat car. The stand column is connected with the bottom of the flat car top plate and provided with an upper plate shaft and a lower plate shaft; the support comprises a telescopic rod, one end of the fixed side of the telescopic rod is connected with the stand column lower plate shaft, a cantilever rod is arranged on the telescopic rod, and the two ends of the cantilever rod are connected with the telescopic rod and the stand column upper plate shaft respectively. An auxiliary support device; the intermediate-frequency generator is connected with one end of the movable side of the bracket telescopic rod through a suspension device; an induction heater. Compared with the prior art, the steel rail normalizing device has the advantages that 1, the normalizing device can alternately work between two steel rails conveniently; 2, the supporting stability is improved; 3, the induction heating device is lifted and lowered and is easy to disassemble and assemble; and the heat dissipation performance and the sealing performance are improved.

The invention relates to the technical field of irregular surface metering, in particular to an automatic detection device and method for steel rail welding seam grinding, and the method comprises the steps that the initial grinding force of a to-be-ground area of a steel rail is determined; determining a polishing demand factor based on the steel rail part to which the to-be-polished area belongs; determining a real-time polishing coefficient of the to-be-polished area by utilizing the initial polishing force and the polishing demand factor; and target polishing parameters of the to-be-polished area are determined through the real-time polishing coefficient. The precision of steel rail grinding is improved, and the quality of a welding seam and the long-term stability of a rail are improved.

The invention discloses a turnout base plate post-welding leveling device, and relates to the technical field of detection devices.The turnout base plate post-welding leveling device comprises direction adjusting assemblies, the direction adjusting assemblies are symmetrically arranged, and fixed-point adjusting assemblies are slidably connected to the interiors of the symmetrically-arranged direction adjusting assemblies. By means of cooperation of a first servo guide rail and a second servo guide rail in the direction adjusting assembly, accurate positioning in a two-dimensional plane is achieved, the device can rapidly reach any local deformation area of the turnout base plate, the leveling operation pertinence and efficiency are greatly improved, the direction and size of the acting force on the base plate are accurately controlled, and the device can be widely applied to the field of complex local deformation of the turnout base plate. And the leveling precision can be effectively handled, the leveling precision is greatly improved, the backing plate is prevented from being secondarily damaged, dynamic fine adjustment and protection are achieved, and the leveling quality is comprehensively improved.

The invention discloses a turnout fine adjustment system and method, the system comprises a fine adjustment moving trolley, an elevation adjuster, a center line adjuster and an inclination angle detection trolley, the end part of the fine adjustment moving trolley is hinged with a cross beam capable of swinging and a lengthened beam, and the elevation adjuster is mounted on the cross beam; a visual camera and a laser distance measuring sensor are arranged at the bottom of the elevation adjuster; the center line adjuster comprises a double-thread telescopic rod and a transverse fine adjustment device, and the transverse fine adjustment device is detachably clamped on the double-thread telescopic rod and can drive the double-thread telescopic rod to rotate so as to enable the double-thread telescopic rod to extend or retract; the method comprises a turnout elevation fine adjustment method, a turnout center line fine adjustment method and a turnout elevation and center line fine adjustment method. Fine adjustment of the elevation and the center line of the turnout can be rapidly completed, manual auxiliary participation is reduced, manpower and material resources are saved, and the construction efficiency is improved.

The invention provides a supporting device for laying a long steel rail large ramp, and belongs to the technical field of steel rail laying. Comprising two bottom shells, the two bottom shells are placed on a base, supporting mechanisms are arranged on the bottom shells, and the side faces of the bottom shells are attached to the vertical face of a concrete sleeper. The supporting mechanism is arranged, the round roller and the limiting block are installed on the supporting mechanism, when the supporting mechanism needs to be taken out, only a pull rope needs to be pulled, the round roller is made to incline downwards through a rotating assembly by pulling of the pull rope, in this way, friction force between the round roller and the long steel rail can be obviously reduced, meanwhile, the limiting block can contract inwards, and therefore the supporting mechanism can be taken out conveniently. The situation that clamping stagnation occurs between the limiting blocks and the long steel rail is effectively avoided, under the dual effects of friction force reduction and clamping stagnation risk elimination, the two adjacent supporting mechanisms can be easily pulled out from the bottom of the long steel rail only by continuously pulling the pull rope, and the whole operation process becomes simpler, more convenient and more efficient.

The invention discloses an erecting method of a steel pipe type portal cableway, relates to the technical field of cableway erecting, and aims to solve the technical problems that in the prior art, accurate consideration of the terrain and the transportation volume is lacked, the transportation process is prone to being blocked, the transportation continuity is poor, and the transportation efficiency is low. And cableway type selection. According to the steel pipe type portal cableway erecting method, accurate model selection is carried out according to different terrains and transportation volumes, for example, a suitable cableway form is adopted at a solitary mountain head or a specific complex terrains, and roundabout of a transportation route is avoided. The circulation type transportation design ensures that the materials can be continuously transported to the construction site, the transportation efficiency is greatly improved, and in practical engineering, compared with a traditional transportation mode, the transportation time is greatly shortened. By improving the erecting method, materials can be supplied to all links of a project in time, construction delay caused by material shortage is effectively avoided, the construction period is remarkably shortened, and the time cost is reduced.

The invention relates to the technical field of welding, in particular to railway track laying welding equipment which comprises an adjusting and supporting mechanism, a polishing mechanism and a welding mechanism. The adjusting and supporting mechanism is fixed to the two rail bodies with the gap and can adjust the two rail bodies with the gap to the proper distance. The grinding mechanism can slide longitudinally and transversely relative to the adjusting and supporting mechanism. And the welding mechanism is used for welding a welding seam between the two rail bodies. The grinding mechanism comprises a grinding part and a collecting cover with a magnetic adsorption part on the inner side, the adsorption cover collects chippings generated by grinding, and a cleaning wheel is arranged at the edge position of the collecting cover and can clean the chippings attached to the welding seam and enable the chippings to be adsorbed to the magnetic adsorption part on the inner side of the collecting cover. The problem of residue of grinding scraps can be reduced, slag inclusion during welding is eliminated, the welding quality of the railway track is improved, and the service life of the railway track is prolonged.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. End portions of rail segments having narrower widths than body portions of the rail segments are joined within a split fishplate. Laterally opposing faces within the narrowed end portions form a longitudinal overlap, and connectors underneath the rail segments pull the split fishplate together against the end portions. In arrangements with parallel rails around a curvature, the rail segments are adjusted by sliding so that the longitudinal overlap is larger for rails on an inside of the curvature compared with rails on an outside of the curvature.

The invention discloses a large-scale precision grinding process method, which belongs to the field of engineering technology, and specifically is a large-scale precision grinding process method, which includes: S1: improving the technical performance of the equipment, and the step S1 specifically includes: specifying the angle calibration cycle and conducting precision review, improving the synchronous and smooth performance of the equipment, detecting the grinding motor, detecting the grindstone, and controlling the system to check and adjust parameters; S2: grinding scheme design, and the step S2 specifically includes: designing the profile scheme, and designing the slope mode. The large-scale precision grinding process method can improve the technical status and operation accuracy of the equipment, formulate a precise grinding plan in combination with the technical performance of the grinding vehicle, solve the problem of too deep grinding marks at the starting point of grinding, solve the grinding quality problem caused by inaccurate motor lowering and large deviation in synchronization of mode conversion, and can solve the limitations of quality acceptance.

The invention provides a construction method of a CRTS III type slab ballastless track, and relates to the technical field of high-speed rail construction, and the construction method comprises the following steps: mounting base plate steel bars, side forms, end templates and limiting groove templates, placing foam plates at expansion joints, and reserving track slab pressing and anchoring holes; base plate concrete is poured, and base plate concrete formwork removal, surface finishing, maintenance and expansion joint construction are carried out after pouring; constructing a geotextile isolation layer and an elastic cushion layer; limiting groove steel bars and self-compacting concrete layer steel bar meshes are installed, and track plates are placed; before and after the track plate and the base plate are fastened by the pressing device, the track plate is finely adjusted by the fine adjustment device; and a self-compacting concrete formwork is installed, self-compacting concrete is poured, and post-pouring treatment and curing are conducted. The track plate and the base plate are fastened through the pressing device, so that the track plate, the base plate and the self-compacting concrete layer are tightly attached in the self-compacting concrete pouring period, and the situation that reworking or track laying is difficult due to the fact that the floating amount of the track plate is too large is avoided.

The invention relates to the technical field of ballastless track construction, in particular to a track power framed bent system which comprises two tool rails, a plurality of sleepers, a combined power frame mechanism and a combined power frame mechanism, and the two tool rails are arranged in parallel at intervals and used for simulating a track on a railway main line; the sleepers are arranged on the bottom surfaces of the two tool rails at intervals; the two tool rails are clamped on the combined power frame mechanism, and the combined power frame mechanism comprises a rail direction adjusting assembly, an elevation adjusting assembly and a curve superelevation adjusting assembly. Wherein the rail direction adjusting assembly is used for adjusting the position of the tool rail in the extending direction of the rail, the elevation adjusting assembly is used for adjusting the height of the tool rail, and the curve superelevation adjusting assembly is used for conducting curve superelevation adjustment on the tool rail; the fixed supporting and pulling mechanism provides reliable support for the combined power frame mechanism, so that a firm foundation is laid for rail direction adjustment of the tool rail, and the overall stability in the adjustment process is ensured.

The utility model discloses a rail web polisher grinding wheel elastic clamping adjusting mechanism which comprises a quick clamp, an adjusting bolt, a connecting frame, an adjusting handle, a rotating pin and an elastic adjusting arm, the quick clamp is installed on an installation plate of a polishing mechanism, a middle pin shaft of the quick clamp is in threaded connection with the adjusting bolt, and the head of the adjusting bolt penetrates through the middle of the connecting frame. The adjusting bolt is further in threaded connection with a nut opposite to the connecting frame, the head of the adjusting bolt is rotationally provided with an adjusting handle capable of being driven to rotate and achieving self-locking, and rotating pins capable of rotating are vertically inserted into connecting openings in the two ends of the connecting frame and are flexibly connected with a polishing mounting frame of the polishing mechanism through elastic adjusting arms. By means of the mode, clamping force of polishing mechanisms on the two sides and the single side can be adjusted, bolts can be conveniently adjusted, labor is saved, self-locking can be achieved, it is guaranteed that loosening cannot occur in the vibration process, flexible connection is achieved, and the elastic connecting arm is self-adaptive to rapid clamping and continuous angle changes after loosening.

The utility model provides a track frog repairing device which comprises a base, a mechanical arm is assembled on the base, and a welding machine and a scanner are arranged at the end of the mechanical arm and used for scanning, welding and repairing a track frog body placed on the top of the base. A clamping mechanism is arranged at the top of the base and comprises a vertical rod, a movable plate is rotationally mounted at the top of the vertical rod, two clamping plates are arranged at the bottom of the movable plate, and the two clamping plates are driven to be relatively close to each other and clamped in the track frog body; a threaded groove communicated with the rotating shaft of the movable plate is formed in the movable plate, and a positioning bolt is in threaded connection with the interior of the threaded groove. According to the rail frog clamping device, the movable plate at the top of the vertical rod can rotate and is locked through the positioning bolt, so that the angle is adjusted, the angle of the two clamping plates is adjusted synchronously, the clamping angle can be changed, the rail frog clamping device is used for clamping rail frog bodies with different angle specifications, and the application range is wide.

The invention provides an adjusting and locking mechanism for a steel rail polishing device. The adjusting and locking mechanism comprises a first adjusting assembly, a second adjusting assembly and a locking piece. Wherein the first adjusting assembly is used for being rotationally connected with the fixing frame, the second adjusting assembly is used for being connected with the grinding assembly, and the locking piece is arranged between the first adjusting assembly and the second adjusting assembly. The invention further provides a steel rail grinding device, the steel rail grinding device comprises at least two adjusting and locking mechanisms for the steel rail grinding device, a fixing frame and at least two grinding assemblies, and the grinding assemblies are connected to the fixing frame through the adjusting and locking mechanisms. The polishing device has the beneficial effects that the position of the polishing assembly can be effectively adjusted through cooperative action of the first adjusting assembly, the second adjusting assembly and the locking piece, so that rapid and accurate polishing operation is carried out, and the operation efficiency is improved.

The present application relates to a kind of plate type ballastless track bed expansion joint glue injection and leveling integrated system, including control system, glue pipeline system, mobile platform, glue injection execution system, wherein glue pipeline system is applied to the pressure of glue body storage tank, force glue liquid to be transported along pipeline to the end of glue injection execution system, glue injection execution system is by six-axis mechanical arm control unit according to expansion joint space coordinate planning six-axis mechanical arm path information and forms six-axis mechanical arm action instruction, realizes six-axis mechanical arm end injection head to expansion joint and carries out glue injection operation.The present application is by setting glue injection execution system and glue pipeline system on mobile platform, can guarantee according to the length direction of expansion joint and carry out glue injection and according to stable glue injection quantity realize the glue injection of expansion joint, reduce labor intensity, improve the glue injection quality of expansion joint.

The invention relates to the technical field of steel rail maintenance, in particular to a grinding device for grinding a steel rail at a high speed based on a CBN grinding wheel. Comprising a carrier used for running on a steel rail, a plurality of transverse moving assemblies are symmetrically installed on the two sides of the carrier and correspond to the steel rail, swing assemblies are installed on the transverse moving assemblies, longitudinal moving assemblies are installed on the swing assemblies, grinding assemblies are installed on the longitudinal moving assemblies, and CBN grinding wheels are detachably connected to the grinding assemblies. Through mutual cooperation of the transverse moving assembly and the swinging assembly, the grinding assembly and the CBN grinding wheel can be controlled to grind the steel rail at a set angle, so that the grinding precision and reliability of different surfaces of the steel rail are improved; the CBN grinding wheel can easily polish and maintain the steel rail, and the purity of scrap iron generated in the polishing process is higher. And therefore, frequent replacement of the grinding wheel is avoided, the steel rail grinding efficiency is improved, and meanwhile a large amount of flying dust and peculiar smell are avoided.

A weld cutting machine having a first cutting jaw part (4) and a second cutting jaw part (5), a base frame (500) having fixedly attached thereto the second cutting jaw part (5), a power unit and a transmission mechanism (3). The power unit is connected to the transmission mechanism (3) to arrange for movement of at least one of the first cutting jaw part or the second cutting jaw part (4, 5).

The invention discloses a trapezoidal sleeper system with a preassembled limiting frame and a construction method thereof.The system comprises a novel trapezoidal sleeper and the preassembled limiting frame, the preassembled limiting frame is formed by prefabricating reinforced concrete, and the novel trapezoidal sleeper cancels a traditional limiting boss and a buffer pad pasted to the outer side of an original limiting boss and the outer side of a longitudinal beam; left and right outer side blocking shoulders of the ballast bed are correspondingly canceled; the connecting steel pipes are wrapped with concrete blocks, and buffering pads are pasted on the concrete blocks and the inner sides of the adjacent longitudinal beams. The prefabricated limiting frames are located at the ends of the trapezoidal sleepers, specifically located on the inner sides of the two longitudinal beams and also located between the outer wrapped concrete cross beams of the two trapezoidal sleepers, and therefore the novel trapezoidal sleepers are limited through the prefabricated limiting frames. In the construction process, the limiting frames and the trapezoidal sleepers are pre-assembled into a whole, the limiting frames have the mold effect during cast-in-place, concrete is cast in the limiting frames at the ends of the trapezoidal sleepers, the limiting frames and the ballast bed are cast into a whole, and the limiting piers are formed.

The invention relates to the technical field of railway ballastless track bed construction, in particular to a guard rail type ballastless track bed construction method. Comprising the steps of construction preparation, survey lofting and foundation mark survey setting, beam surface chiseling cleaning, sleeve connecting steel bar installation, base steel bar binding, bridge expansion joint embedded part installation, base and groove formwork installation, base concrete pouring and maintenance, isolation layer geotechnical cloth and elastic base plate laying, groove insulation steel bar framework installation and ballast bed bottom layer steel bar binding. The method comprises the following steps of: distributing double-block type sleepers, transporting tool rails, assembling double-block type track panels, roughly adjusting track lifting of the double-block type track panels, binding steel bars on the upper layer of a track bed, distributing guard wheel sleepers, assembling guard wheel track panels, roughly adjusting the sizes of the guard wheel track panels, mounting and adjusting track bed templates, finely adjusting the double-block type track panels for the first time, adjusting the sizes of the guard wheel track panels, and finely adjusting the double-block type track panels for the second time. The method comprises the steps of guard rail row size rechecking, ballast bed concrete pouring, stress relief, concrete curing and data acquisition.

The invention relates to a deflection mechanism for intelligent steel rail finishing and polishing equipment, and relates to the technical field of steel rail finishing, the deflection mechanism comprises a turbine chamber body, a worm gear and a worm are arranged in the turbine chamber, the worm gear and the worm are meshed with each other, the worm is rotatably connected in the turbine chamber, and the worm gear and the worm are meshed with each other. And a mounting plate used for mounting a grinding device is fixedly connected to the axis of the turbine, a driving assembly used for driving the worm to rotate is arranged on one side of the turbine chamber, and the effect of improving the grinding efficiency of the track with the deflection angle is achieved.

The utility model discloses a novel rail web polisher which comprises a bottom frame, walking wheels, an electric push rod, a polishing mechanism, a feed clamping mechanism, a control box, a left clamping claw assembly and a right clamping claw assembly, the walking wheels used for walking are installed at the bottom of the bottom frame, the walking wheels are erected on a steel rail, the electric push rod is installed on the bottom frame, and the polishing mechanism is installed on the electric push rod. A push rod part of the electric push rod is fixed to a steel rail through a clamp, the push rod of the electric push rod extends out to drive the bottom frame to walk, grinding mechanisms used for grinding rail webs are installed on the two sides of the bottom frame, a feed clamping mechanism used for driving the grinding mechanisms on the two sides to rapidly clamp the rail webs or open the rail webs is installed on the bottom frame, and a follow-up control box is installed on the electric push rod. Left and right clamping claw assemblies for preventing the whole machine from inclining are further installed on the two sides of the bottom frame. By means of the mode, the structure is stable, the clamping and loosening modes are rapid and convenient, the grinding wheel makes elastic contact with the rail web, damage to the steel rail is reduced, and the whole machine is prevented from inclining and accidents are avoided.

The present invention belongs to the field of railway technology, and discloses a slab ballastless track and adjustment method that adapts to foundation deformation, comprising: a base, on which a limiting boss is cast; a prefabricated track plate, a long rectangular hole opened in the middle, and two limiting bosses embedded on both sides of the corresponding long rectangular hole; a cover plate, which covers the long rectangular hole; a stacked height adjustment layer, which is pressed between the base and the prefabricated track plate; a filling adjustment layer, which is pressed between the base and the height adjustment layer; a horizontal adjustment layer, which is pressed between the limiting boss and the long rectangular hole; and a plurality of anti-movement limiting plates, which are installed on two opposite side walls of the prefabricated track plate to prevent the height adjustment layer from moving out laterally. The present invention solves the problem of insufficient deformation adjustment capacity of existing ballastless tracks when the offline foundation undergoes large deformation, and can be applied to the construction of ballastless tracks in complex geological sections and the treatment of defects caused by foundation deformation of operating lines.

The invention discloses a trapezoidal sleeper track integrated construction method, and relates to the technical field of track construction, the method comprises the following steps: assembling a steel rail, a fastener and a trapezoidal sleeper into a track panel to be treated according to the length requirement of the track panel, and binding a track bed reinforcing mesh; a to-be-processed rail row is placed above the elastic vibration reduction parts of the trapezoidal sleepers, the prefabricated base sleepers are placed below the trapezoidal sleepers, the trapezoidal sleepers and the prefabricated base sleepers are fixed through angle steel or bolts to form an assembly structure, and the assembly structure and a ballast bed reinforcing mesh are bound and connected to obtain a to-be-processed device; and after the to-be-machined device is conveyed to the laying position of the construction working face, ballast bed pouring treatment and ballast bed formwork removal treatment are conducted, and construction is completed. The prefabricated foundation sleeper structure is introduced between the ballast bed and the trapezoidal sleeper, the prefabricated foundation sleeper and the ballast bed are bound through the reserved steel bars, the trapezoidal sleeper is directly arranged on the prefabricated foundation sleeper and does not need to participate in the ballast bed pouring process, the construction efficiency can be improved, and it is guaranteed that the damping effect of the trapezoidal sleeper is effectively exerted.

The invention relates to the technical field of train track obstacle clearance devices, in particular to an obstacle clearance device for a train track, which comprises two mounting parts and an oil storage mechanism mounted at the bottoms of the two mounting parts, and two groups of driving mechanisms are mounted at the bottom of the oil storage mechanism; wherein a grinding mechanism abutting against a pair of rails is installed in one driving mechanism, two sets of walking wheels roll on the two rails, a motor vehicle drives the walking wheels to roll on the rails, and at the moment, due to the fact that a connecting base is slidably connected to a sliding rod, and a rotating connecting rod between the connecting base and the walking wheels is eccentrically arranged, the motor vehicle drives the walking wheels to roll on the rails; and when the two walking wheels on the left side roll on the rail, eccentric rotation of the connecting rods is achieved, the connecting bases further move left and right on the sliding rods, finally, grinding assemblies at the bottoms of the two connecting shells on the left side grind the surface of the rail, stable running of train wheels is facilitated, friction force and shaking are reduced, and the service life of the rail is prolonged.