81results about How to "Does not affect operations" patented technology

The invention relates to a soft foundation reinforcing method of the existing railway or highway subgrade construction, which comprises the following steps of: constructing vertical chemical churning piles on the side slope and the slope toe of a subgrade to be reinforced; after the vertical chemical churning piles are cured, drilling a plug hole tilting toward the center line of a track and extending into the soft foundation in the side slope by using a drilling machine; and performing shock tube grouting in the plug hole. A sizing agent in the plug hole permeates towards the periphery of the foundation, the cured sizing agent, the vertical chemical churning piles and the foundation form an integrated reinforcing block, and thus, the reinforcement of the railway or highway subgrade construction is completed. Compared with the traditional single technique, the method has the advantages of no construction transition, no traveling interruption and no reinforcing dead zone by adopting the vertical chemical churning piles together with a shock tube grouting technique. The advantages of both the vertical chemical churning piles and the shock tube grouting technique are fully exerted, and the safety and the quality are controllable.

The invention provides a frequency sweep and mobile phone measurement report-based method for automatic frequency optimization. The method specifically and efficiently grasps the improvement of wireless coverage quality on user groups from user group hierarchy, associative network quality and user awareness through the association and integration of frequency sweep data and mobile phone measurement report data so as to achieve a better balance among the user awareness, the network quality and various performance assessment indexes, reduce blindness and avoid fluctuations in network quality.

The invention provides a train rail detection system and method and relates to the technical field of rail detection. An embedded computer device in the system sends sampling pulse signals to an inertia component and a laser photographing component; the laser photographing component shoots steel rail profile images and sends the steel rail profile images to the embedded computer device; the inertia component measures attitude parameters of a detection beam relative to steel rails and sends the attitude parameters to the embedded computer device; the embedded computer device determines transverse displacement data and vertical displacement data of the detection beam relative to the steel rails according to the steel rail profile images; calculation is conducted according to the transverse displacement data, vertical displacement data and the attitude parameters, and unsmooth geometric parameters of the train rails are determined; overrunning judgment is conducted according to the unsmooth geometric parameters, overrunning judgment data are obtained, and waveform data of the unsmooth geometric parameters are generated; and the overrunning judgment data and the waveform data are sentto a ground data processing center device.

The invention discloses a method for increasing railway onboard laser radar scanning data precision. The method comprises steps of: 1, laying control signs at preset intervals along a railway to be tested; 2, enabling an onboard laser radar system to scan along the railway to obtain railway onboard laser radar point cloud data; 3, based on a railway base control network, measuring the three dimensional coordinates of the central point of the control sign in a railway engineering coordinate system by using a total station free station setting method; 4, extracting the coordinates of the central point of the control sign from the railway onboard laser radar point cloud data, and correcting the railway onboard laser radar point cloud data according to a difference value between the coordinates of the central point of the control sign extracted from the railway onboard laser radar point cloud data and the three dimensional coordinates of the central point of the control sign in the railway engineering coordinate system measured by the total station. The method is simple and feasible in operation and enables the railway onboard laser radar data precision to satisfy existing line repetition measurement precision requirement.

The invention relates to a repair method for ballastless track foundation settlement. The method includes the first step of lifting a supporting layer of a settlement area to make a corresponding track board lifted by a preset rising amount, the second step of conducting grouting and compacting on the lower portion of the lifted supporting layer, and the third step of finishing grouting and completing repair. By means of the method, the lifting accuracy can be accurately controlled.

The invention discloses a shield tunnel lining segment and further discloses a reinforcing method of the shield tunnel lining segment. An existing structure comprises a top-sealing block, a first adjoining block, a second adjoining block, a bottom-sealing block, a first standard block and a second standard block, wherein the first adjoining block and the second adjoining block are located at the two ends of the top-sealing block, and the first standard block and the second standard block are located at the two ends of the bottom-sealing block. The first adjoining block is connected with the first standard block, and the second adjoining block is connected with the second standard block. Steel strand hole passages are formed in the existing first adjoining block and first standard block, steel strands are arranged in the steel strand hole passages, and steel strand outlets are formed in the inner sides of the first adjoining block and the first standard block. The second adjoining blockand the second standard block are also treated in the same way. The reinforcing method comprises the steps that (1) the lining segment is prefabricated according to the borne load of a tunnel structure; (2) the stress condition of the lining segment is judged, and the reinforcing method of the lining segment is determined; and (3) the lining segment is reinforced. According to the shield tunnel lining segment and the reinforcing method, the overall rigidity and the deformation harmony of the tunnel structure are improved, and tunnel operation safety can be ensured.

The invention discloses a ground rectification and retracement method for a metro operating tunnel. The method comprises the steps that 1, upper covering soil is unloaded; 2, whether horizontal rectification is needed or not is judged, if horizontal rectification is needed, the third step is executed, otherwise, the fourth step is executed; 3, punching is conducted on the designated distance of the horizontal displacement side of a tunnel zone to be treated, and grouting is conducted in a hole on the ground through a sleeve valve pipe grouting technology to achieve horizontal rectification; 4, whether vertical rectification needs to be conducted on the tunnel zone to be treated or not is judged, if vertical rectification is needed, the fifth step is executed, otherwise, the sixth step is executed; 5, oblique punching is conducted on the two sides of the tunnel zone to be treated to the lower side of the tunnel zone to be treated, and grouting is conducted in holes on the ground through the sleeve valve pipe grouting technology to achieve vertical rectification; 6, rectification is finished and it comes time to quit. The ground rectification and retracement method of the metro operating tunnel has the advantages of being small in operation difficulty, simple in construction technology, wide in operation space, strong in working procedure controllability, high in implementation efficiency, high in safety performance and free of influence on metro operating.

The invention provides an electric car battery deployment system based on an electric vehicle switching mode. The electric car battery deployment system is characterized in that an electric car (1), acharging and switching station network (2), and a battery pack (3) supporting the dynamic configuration capacity are included, the electric car is combined with a customized charging and switching station, power batteries are dynamically deployed according to the application requirements, thus car-electric separation is realized, and the utilization efficiency of the batteries is improved.

The invention provides a QKD metropolitan area network system based on a Sagnac loop and a key distribution method thereof. The system comprises an Alice control end, a Sagnac transmission backbone loop, an optical cross-connect OXC as a backbone node, and an access net NETmn comprising n Bob user sides. The Alice control end comprises a multi-wavelength pulse laser generation device, a wavelengthselection switch, a circulator, a single photon detector group, a coupler and a phase modulator PMA. The Bob user sides of the access net comprise variable optical attenuators, pulse delay devices, phase modulators PMBs and reflection mirrors. The OXC is taken as the backbone node of the Sagnac loop. Even if a fault occurs in a certain node, the operation of a whole network is not influenced. According to the key distribution method, a decoy state protocol is employed, a key generation rate is improved, and the relatively long transmission distance is increased.

The invention is suitable to DO access network of packet data in high speed. The system sets up binding relation among prepaid mobile terminal NAI, IMSI, MDN in OSS, and adds new interface between ANAAA and OSS of DO access network. Through the said new interface, the method sends down binding relation to ANAAA; and through the current interface, sends down binding relation to AAA in core network. The method includes steps: when comm. service is carried among prepaid mobile terminals, ANAAA assigns IMSI of binding to corresponding NAI of prepaid mobile terminal as mobile terminal id in network to the prepaid mobile terminal; based on IMSI, AAA server sends MDN being looked up corresponding binding as prepaid mobile terminal id to SCP for carrying out account maintenance process of prepaid service; based on allotted money, the prepaid mobile terminal carries out comm. service. The invention realizes prepaid service under DO network accorded with intelligent network.

The embodiment of the invention provides a rail transit vehicle traction / brake test bench and method. The test bench comprises a front fixing base, a rear fixing base, an idler wheel platform, synchronous gear boxes, accompany type transmission systems, accompany type motors, a controller and a power source, wherein the idler wheel platform is provided with accompany type wheels corresponding to wheels of a vehicle controlled by a rail transit vehicle traction / brake control system one by one; the synchronous gear boxes correspond to and are connected with the accompany type wheels one by one; the accompany type transmission systems correspond to and are connected with the synchronous gear boxes one by one; the accompany type motors correspond to and are connected with the accompany type transmission systems one by one; the controller is connected with the accompany type motors. When the rail transit vehicle traction / brake test is conducted, a rail transit vehicle only needs to be put on the rail transit vehicle traction / brake test bench, the rail transit vehicle traction / brake test can be conducted, the actual rail is not occupied, the test can be conducted at any time according to the requirements, the test cycle is shortened, the manpower and material resources required by the test are reduced, and operation of the actual line is not affected.

The invention discloses a single-pier overpass overload and overturning monitoring and early warning method based on comprehensive perception, which comprises the following steps: a traffic load monitoring unit obtains load parameters, and processes the load parameters into load data through edge calculation; a bridge deflection deformation monitoring unit obtains a first geometric parameter, and the first geometric parameter is processed into first geometric data through edge calculation; a bridge relative displacement monitoring unit obtains a second geometric parameter, and the second geometric parameter is processed into second geometric data through edge calculation; a bridge overturning risk monitoring unit obtains a third geometric parameter, and the third geometric parameter is processed into third geometric data through edge calculation; a bridge support counter-force monitoring unit obtains counter-force parameters, and the counter-force parameters are processed into counter-force data through edge calculation; and a cloud platform calls and analyzes the data and selects whether to give an alarm or not. The invention is applied to the technical field of bridges.

The invention relates to a concrete continuous beam bridge transformation construction method. The method comprises the following steps: dismantling a bridge deck pavement layer; arranging temporary buttresses on the two sides of a pier, and arranging first pad structures on the temporary buttresses; assembling a steel truss girder on the deck; rotating the steel truss girder to be borne on a first dip padding structure; anchoring the steel truss girder to the concrete continuous girder bridge through an anti-overturning system; dismounting, namely mounting a hanging system at the position, corresponding to the box girder section of a midspan closure, of the steel truss girder, anchoring the hanging system to the box girder section, cutting the box girder section, and lowering the box girder section by using the hanging system; and dismantling the rest box girder sections according to an inverse sequence of finished bridge pouring by using the processes in the dismantling step and a double-cantilever dismantling process; arranging a third pad structure at the top of the pier; rotating the steel truss girder to be borne on the third pad structure; arranging a steel cross beam support at the top of the pier; and rotating the steel truss girder to be borne on the steel cross beam support. The method is short in period, small in construction support amount and small in environmental disturbance.

The invention discloses an elevator car with an ultraviolet sterilization device. The elevator car comprises a car body, a car roof (5) in the car body is provided with a door shaped groove, the ultraviolet sterilization device is arranged in the door shaped groove and comprises an ultraviolet light tube (1) and two suspension arms (6), and each suspension arm (6) is connected with the car roof (5) through a rotating pin (7). A take-up motor (4) is arranged above the car roof (5) and connected with the suspension arms (6) through take-up cables (3). The elevator car with the ultraviolet sterilization device is high in instantaneity and efficiency, dependency on manpower resources is avoided, and the elevator car is protected from secondary pollution.

The invention relates to a 4G / 5GT-Box Internet-of-Vehicles environmental protection monitoring server, which comprises a front-end program and a background service module, and the background service module comprises a cache database, a background management server, a Kafka message server, a protocol analysis processing server and a database; environmental protection data detected by the T-Box terminal is received; the data is sent to a Kafka message server to be subjected to multi-thread processing; after ID authentication of the security chip and VIN code filing confirmation, protocol analysis is carried out and the result is sent to a cache database; the background management server responds to the data access service of the front-end program; a database control technology is used for switching databases to perform read-write separation; data is cached and the data is stored into a database through a data access layer, and the communication service and the message service are combined, so that the bottleneck problem does not exist in protocol processing, the data response processing speed can be increased through multi-thread processing, a sub-library sub-table and read-write separation technology is adopted for data storage, cache is utilized, the bottleneck of database read-write is reduced as much as possible, and the data read-write performance is improved.

The invention discloses a method for reinforcing a railway frame-shaped bridge and the reinforced railway frame-shaped bridge. The method includes the reinforcement of the middle portion of a span portion when cracks are found on the lower surface of the span portion of a top plate of a railway frame-shaped bridge: sticking a plurality of parallel carbon fiber fabric tape on the lower surface of the top plate of between load-bearing walls on both sides of the cracks for covering the cracks, wherein the carbon fiber fabric tape is perpendicular to the cracks, and the length of the carbon fiber fabric tape is at least 10 times of the width of the cracks; then the reinforcement of supporting seat areas on both side of the middle portion of the span portion: sticking steel plates on the lower surface of the supporting seat areas for each of the supporting seat areas and arranging at least one steel support after sticking the steel plates on the surfaces of the load-bearing walls in connection with the supporting seat areas, wherein one end of the steel support is fixed onto the steel plates at the lower end of the supporting seat areas, and the other end is fixed onto the steel plates on the surfaces of the load-bearing walls. According to the technical scheme of the method for reinforcing the railway frame-shaped bridge and the reinforced railway frame-shaped bridge, the railway frame-shaped bridge can be reinforced without removing railroad beds above the top plates, and the headroom under the middle portion of the span portion cannot be affected.

The invention relates to a monitoring system and a monitoring method for deformation around a tunnel hole, which belong to the technical field of machine vision. The monitoring system is composed of image processing software, a remote control terminal, a binocular CCD camera, an image capture card, a metal sliding groove, a camera bearing platform, and an input-output unit, wherein the binocular CD camera is connected with the metal sliding groove by means of the camera bearing platform, a USB video capture card is installed in the binocular CD camera, the binocular CD camera stores data and transfers the data to the remote control terminal by means of the USB video capture card, and the remote control terminal analyzes a picture and obtains data by means of the image processing software,namely, a related algorithm of the binocular vision technology, so as to know the deformation situation around the tunnel hole of the detected tunnel. The monitoring system overcomes the shortcomingsthat the traditional manual handheld instrument is time-consuming, labor-intensive and expensive and does not have the space-time continuity and high-level intelligence, can provide more stable guarantee for the safe construction and operation of the tunnel, improve the traffic engineering construction intelligence level, and effectively reduce the occurrence of detection errors.

A ballastless track arch-up improving method based on rope saw cutting includes the following steps of firstly, determining the falling amount of an arch-up section of a ballastless track, and conducting steel bar embedding and anchoring on the positions, at the two ends of the arch-up section, of the ballastless track; secondly, drilling rope saw operation holes in the side face of the ballastless track; thirdly, cutting off concrete of a supporting part of the ballastless track, providing a falling space for the ballastless track, and limiting the cut ballastless track; fourthly, fine adjusting the ballastless track to fall by a design value, fully filling the lower gap or interlayer gap of the ballastless track with a filling material, and recovering the route stability; fifthly, conducting steel bar embedding and anchoring on an improvement area of the ballastless track, fine adjusting a fastener system and recovering the route smoothness. By means of the method, the existing structure of the ballastless track cannot be changed, the geometrical state of the ballastless track is stable in the improvement process, the train driving safety is not affected, and the method can be implemented in the skylight maintaining time and is suitable for the arch-up improvement of the ballastless track with a high-quality lower concrete force-bearing structure.

The invention discloses space omnidirectional undisturbed soil sampling equipment to solve the problem that a traditional soil sampling mode cannot obtain undisturbed samples. The undisturbed soil sampling equipment comprises a drilling and soil sampling device, a travelling marching device, a control device and a worktable; the drilling and soil sampling device comprises a soil sampler, a drill rod, a power head and a drill rod guide rail; the power head is arranged in the drill rod guide rail; the soil sampler is arranged on the drill rod; the drill rod comprises a rotating drill rod body and a sampling drill rod body which are connected through thrust bearings; the sampling drill rod body is connected with the power head; the control device comprises a first oil cylinder, a second oil cylinder, a supporting arm and a motor; the first oil cylinder, the second oil cylinder and the supporting arm are arranged on the worktable; the supporting arm is connected with the telescopic end of the second oil cylinder; and the guide rail is arranged on the upper portions of the first oil cylinder and the supporting arm. The space omnidirectional undisturbed soil sampling equipment has the characteristics that the omnidirectional working posture is not limited, the soil sampling position is not limited, the efficiency is high, and retentivity of the sampled undisturbed soil is good.

The invention discloses a sedimentation improving method for a ballastless track based on rope saw cutting. The method comprises the following steps that (1) the sedimentation volume of the part, in asedimentation section, of the ballastless track is determined, and the two ends of the sedimentation section of the ballastless track are subjected to bar planting and anchoring; (2) a rope saw operation hole is drilled in the side surface of the ballastless track; (3) a rope saw is adopted for cutting concrete of the ballastless track, bonding constraint of the ballastless track is removed, andthe ballastless track after cutting is limited; (4) a jacking device placing groove is formed in concrete below a horizontal cutting seam; (5) after a jacking system is adopted for jacking the ballastless track to a design value, gaps of the lower portion of the ballastless track after jacking are filled with a filling material to be full, and the line stability recovers; (6) the ballastless trackin the improving area is subjected to bar planting and anchoring, the fastener system is accurately adjusted, and the line smoothness recovers. The method is simple, quick, safe and reliable, in theimproving process, the geometrical state of the ballastless track is stable, the running safety of trains cannot be influenced, and the improving can be conducted in the period of maintaining skylights and is suitable for quick jacking of the ballastless track.

The invention relates to a construction method for jacking in a turnout zone, in particular to a construction method for reinforcing the turnout zone of a criss-cross I-shaped steel and D beam combination system. Without the need for changing traffic organization and dismantling turnout equipment, lines between turnouts are strengthened, the normal positioning, steering and use of the turnouts arenot affected, and the normal transportation operation of a station is greatly guaranteed. Compared with a conventional construction method, the method is applicable to the reinforcement of the turnout zone, applicable to the reinforcement of the lines, and high in safety and stability. The operation of an existing railway is not affected, the operation organization of an existing railway stationis changed, and the railway transportation is affected little. The demolition of existing equipment and the demolition project volume can be reduced, and various working conditions which are not complete by conventional construction methods can be completed. Each share road only needs a short time to break the railway operation , the operation is convenient, the construction cost is low, and the effect of construction on the railway operation can be minimized.

The invention provides a construction method for additionally building a high-speed railway roadbed in parallel with an existing high-speed railway. The method comprises the steps of arranging a lengthened cast-in-situ bored pile at the slope toe of a side slope of the existing high-speed railway roadbed; after the cast-in-situ bored piles reach certain strength, arranging prestressed pipe piles in the subgrade foundation range of the newly-built high-speed railway; removing the slope surface protection of the existing high-speed railway roadbed slope, and digging a large step; pouring a concrete cushion layer on the top of the prestressed pipe pile, laying an impermeable layer, and pouring foam light soil; and constructing roadbed slope protection. Under the condition that the existing high-speed railway with the speed of 350 km / h is parallel, the functional use requirements of the newly-built high-speed railway with the speed of 350 km / h can be met, the roadbed base stress diffusion of the newly-built high-speed railway does not influence the operation of the existing high-speed railway, and the roadbed settlement of the existing high-speed railway is not influenced; the stability of the newly-built roadbed and the existing roadbed, the settlement amount and the transverse displacement in the operation period meet the standard requirements, and the use function requirements of the newly-built roadbed and the existing roadbed are met.

The invention relates to a device for scrubbing and cleaning a pool wall of a swimming pool. The device comprises a movable floating body, a water absorption scrubbing arm and a light-following navigator. An arm rod sleeve is arranged in the center of the movable floating body, a water scattering guiding disc is arranged at the top of the arm rod sleeve, a water purification filter element is mounted at the top of the movable floating body, a propeller A and a propeller B are arranged at the bottom of the movable floating body, the water absorption scrubbing arm comprises a lifting arm rod anda swing arm rod, a water suction water pump is mounted in the lifting arm rod, an isolating scrubbing hood is arranged on the end part of the swing arm rod, a rotary pool wall brush is mounted in theisolating scrubbing hood, and the light-following navigator comprises a beam emitter, a light-following controller and a channel-changing contact. According to the embodiment, as the light-followingnavigator operates back and forth in the swimming pool according to a set route and the movable floating body and the water absorption scrubbing arm are matched with each other, the bottom wall and the side wall of the swimming pool are cleaned conveniently and the scrubbed water body is filtered and purified. The device provided by the invention can scrub and clean the pool wall automatically asan operator puts the movable floating body in a set position.

The invention discloses a railway power source cable leakage current on-line detection device. The device includes a detection module, a driving module and a sampling module; the detection module comprises a relay and a grounding resistor which are connected in series with each other; one end of the relay, which is far away from the grounding resistor, is connected with a cable under test; one endof the grounding resistor, which is far away from the relay, is grounded; the driving module adopts switching optocoupler-based isolation driving; the driving module is connected with the detection module and controls the switching on and switching off of the relay; and the sampling module performs linear optocoupler-based isolation sampling. The invention also discloses a railway power source cable leakage current on-line detection method. With the railway power source cable leakage current on-line detection device and method of the invention adopted, the online safety detection of the ground leakage current of a railway power source cable is realized. The device and the method of the invention have the advantages of high detection precision, strong anti-interference capacity, high safety and high reliability. With the railway power source cable leakage current on-line detection device and method of the invention adopted, electricians can grasp the ground leakage current of the powersource cable online in real time, and discover hidden dangers in time, and therefore, the operation of a railway will not be affected.

The invention relates to a soft foundation reinforcing method of the existing railway or highway subgrade construction, which comprises the following steps of: constructing vertical chemical churning piles on the side slope and the slope toe of a subgrade to be reinforced; after the vertical chemical churning piles are cured, drilling a plug hole tilting toward the center line of a track and extending into the soft foundation in the side slope by using a drilling machine; and performing shock tube grouting in the plug hole. A sizing agent in the plug hole permeates towards the periphery of the foundation, the cured sizing agent, the vertical chemical churning piles and the foundation form an integrated reinforcing block, and thus, the reinforcement of the railway or highway subgrade construction is completed. Compared with the traditional single technique, the method has the advantages of no construction transition, no traveling interruption and no reinforcing dead zone by adopting the vertical chemical churning piles together with a shock tube grouting technique. The advantages of both the vertical chemical churning piles and the shock tube grouting technique are fully exerted, and the safety and the quality are controllable.

The embodiment of the invention discloses a novel repair method for a damaged pavement around a well lid. The repair method comprises the following steps: a, crushing the damaged pavement around the well lid to form recycled aggregate, vibrating the recycled aggregate to be a compact and stable state and then drying the recycled aggregate; b, pouring a uniformly-mixed liquid binding material to the recycled aggregate zone and the gap between the recycled aggregate zone and the original pavement; c, mixing the liquid binding material with single-diameter round sand at a predetermined mass ratio to form a mixture, pouring the mixture to the surface of the recycled aggregate zone, and screeding the mixture with a scraper to form a mixture layer, wherein the poured mixture layer is slightly lower than the top surface of the well lid; d, when the mixture layer is cured, uniformly spreading a layer of fine aggregate on the upper surface of the mixture, wherein the fine aggregate layer is as high as the top surface of the well lid; and e, after the fine aggregate is distributed, maintaining the pavement for 2 hours to be opened to traffic. By adopting the repair method, the pavement structure can be effectively reinforced, and quick construction can be realized without influencing road operation.

The invention discloses a construction method for single-point pushing and crossing of a large-tonnage continuous beam spanning an existing railway, and belongs to the field of large-tonnage beam body pushing construction. The construction method disclosed by the present invention comprises the following steps: S1. Construction of main pier and temporary pier, S2. Construction of prefabricated platform of main span box girder, S3. Prefabrication of the left and right sides of the main span on the prefabricated platform of box girder, S4. Arrange slideways and lateral limit facilities on the top of the pier, S5. Set traction points, S6. Install steel guide beams at the front end of continuous box girders, S7. Set steel rear anchor reaction points at the ends of continuous box girders, S8. The steel strand with low strength and slack is connected to the traction end, S9. After the push is in place, the formal support is installed, and the falling beam is in place. The construction method of the invention is simple in force, saves equipment and turnover materials, is safe, and does not affect the operation of existing railways.

The scheme of the invention discloses an aerial acceleration type drum-type runway stopper which is a mechanical roller device. The runway stopper comprises multiple groups of roller sets, wherein each roller set comprises a driven roller and a driving roller; the driving roller can independently rotate at high speed; each roller set is provided with a braking device. When an aircraft slides at high speed and is close to the runway stopper, the driving rollers are started and clockwise rotate at high speed, the sliding wheels of the aircraft run onto the driven rollers under the function of inertia, when the sliding wheels of the aircraft are contacted with the driving rollers, as the driving rollers are rotating at high speed in the direction opposite to the sliding wheels, the forward inertia of the sliding wheels is transferred, the sliding wheels are supported above the driven rollers and driving rollers and rotate in the air, and the motion of the aircraft relative to the ground stops. As the aerial accelerated movement of the sliding wheels and the roller sets release inertial energy, the inertia force of the aircraft disappears instantly, and the aircraft is stopped. The aerial acceleration type drum-type runway stopper can stop the aircraft at any position within the sliding distance of the aircraft, and particularly can stop large-scale and heavy aircrafts within a short distance.

The invention discloses complete equipment for repairing and reinforcing shield subway tunnel segments, belongs to the technical field of tunnel construction equipment, and solves the problems that a trolley and a simple cantilever beam need to be modified for assistance during construction of existing segment repairing and reinforcing equipment, steel plate rings cannot be stored and transferred, the automation degree is low, the construction period is long, the construction cost is high, the construction difficulty is large, and the like. The complete equipment for repairing and reinforcing shield subway tunnel segments comprises a bottom system, an assembling robot system, a welding robot system and an auxiliary operation platform system. The complete equipment for repairing and reinforcing shield subway tunnel segments is high in automation degree, and adopts the mechanical operation for assisting in manual operation; and the equipment has the functions of storing, transferring and lifting the steel plate rings, automatically completes positioning installation and welding seam welding of the steel plate rings, effectively reduces the labor intensity of operators, and improves the operation efficiency.

The invention discloses an overload and overturning monitoring and early warning method for single-pier overpass bridges based on comprehensive perception, which comprises the following steps: the traffic load monitoring unit obtains the load parameters, and processes the load parameters into load data through edge calculation; the bridge deflection and deformation monitoring unit obtains the first A geometric parameter, the first geometric parameter is processed into the first geometric data through edge computing; the bridge relative displacement monitoring unit obtains the second geometric parameter, and the second geometric parameter is processed into the second geometric data through edge computing; the bridge overturning risk monitoring unit The third geometric parameter is obtained, and the third geometric parameter is processed into the third geometric data through edge computing; the bridge support reaction force monitoring unit obtains the reaction force parameter, and the reaction force parameter is processed into reaction force data through edge computing; the cloud platform separately adjusts Take and analyze the above data, choose whether to call the police or not. The invention is applied in the technical field of bridges.