33results about How to "Guarantee smooth implementation" patented technology

The invention discloses a coal power multi-path transformation and new energy combination decision-making method under low-carbon transformation. The method comprises the following steps: firstly, constructing a system comprising first-level effect indexes such as environmental influence, economic benefit, energy safety and technical innovation and corresponding second-level indexes; then, alternative schemes of various coal power transformation technology and new energy project type combinations are generated; then quantitatively evaluating the effect index of each scheme, and calculating a comprehensive utility value by using multi-criterion decision analysis; identifying potential risk factors, and performing uncertainty analysis through Monte Carlo simulation; and finally, according to the low-carbon transformation target and policy evaluation scheme conformity, selecting a scheme which most conforms to the policy target, and continuously monitoring and adjusting. The coal-electricity multi-path transformation and new energy combination decision-making method under low-carbon transformation is beneficial to promoting energy low-carbon transformation, optimizing resource allocation, improving economic benefits, promoting technical innovation, enhancing risk management capability and ensuring that a project is consistent with policy orientation.

The invention belongs to the technical field of dredging ship operation sea wave monitoring, and discloses an engineering scale sea wave monitoring system and method based on image information recognition. Comprising the steps of monitoring area setting, sea wave image acquisition, sea wave parameter analysis, crushing condition monitoring, surge condition monitoring and dangerous condition identification. According to the method, the sea wave danger evaluation condition, the sea wave breakage danger evaluation condition and the sea wave surge danger evaluation condition of each monitoring area are analyzed respectively, whether the sea wave danger condition occurs in each monitoring area or not is comprehensively judged, and then whether the target dredging engineering ship is in danger or not is further judged; omnibearing risk control over dredging ship operation is achieved, the risks of ship collision, overturning and facility damage are effectively reduced, accurate decision making is assisted, a reliable basis is provided for dredging operation route optimization arrangement and the like, the probability that a ship breaks into a dangerous sea area is reduced, smooth implementation of a navigation plan is ensured, and engineering tasks are completed on time.

The invention discloses a coronary intervention guide wire fixing patch and a using method thereof, and relates to the technical field of medical instruments.The coronary intervention guide wire fixing patch comprises a patch body, a bonding layer is arranged on the bottom face of the patch body, at least two clamping grooves used for clamping the tail end of a guide wire are formed in the top face of the patch body, and a plurality of protruding blocks are integrally formed on the top face of the patch body; each clamping groove is of a penetrating type groove structure formed in the top of the corresponding protruding block, the width of an opening of each clamping groove is smaller than the outer diameter of a guide wire, and the number of the protruding blocks is generally four and the protruding blocks are arranged at intervals in the length direction of the patch body. The patch body and the protruding blocks are made of medical plastic in an integrated mode, and the adhesive layer is further covered with a stripping protection layer. The device is simple in structure, small in size and capable of achieving rapid, single-hand and reliable fixing and releasing of the tail end of the guide wire on the premise that extra table top space is not occupied, so that the operation process is effectively simplified, and winding and disengaging of the guide wire are prevented.

The utility model discloses a multi-seat assembled bean table which comprises a table board, the table board is arranged in a right-angle fan shape, a storage box is clamped in the rear side of the upper end of the table board, two side telescopic sleeves are fixedly connected to the front side of the lower end of the table board, a center telescopic sleeve is fixedly connected to the center of the lower end of the table board, and the center telescopic sleeve is fixedly connected to the rear side of the table board. The side telescopic sleeves and the center telescopic sleeve are connected through side sliding blocks and side connecting rods, and the side telescopic function is achieved. By means of the design, the table can be easily expanded or contracted according to needs so as to adapt to different use scenes. Through the magnetic force of the side magnets, a plurality of tables can be mutually connected, and a user can conveniently combine the tables according to requirements. The modular connection system not only improves the use flexibility of the table, but also reduces the storage and transportation cost, and the design of the whole table considers the operation convenience and maintenance requirements of a user. The connection mode of all the components is simple and easy to understand, and a user can assemble and disassemble the components conveniently.

The invention discloses a pile-breaking-free mechanical connection method between a reinforced concrete square pile and a bearing platform, and the connection method comprises the following steps: manufacturing a steel reinforcement framework, connecting the steel reinforcement framework with a pile top end plate through a steel sleeve, and then pouring a concrete pile body to form the reinforced concrete square pile; the reinforced concrete square pile is subjected to pile sinking construction; and the pile top end plate is dismantled, and the bearing platform anchoring rib and the reinforced concrete square pile are mechanically connected through the steel sleeve. According to the pile-breaking-free mechanical connection method between the reinforced concrete square pile and the bearing platform, mechanical connection between the reinforced concrete square pile and the bearing platform can be achieved without mechanical breaking of the pile head of the reinforced concrete square pile, field welding work is avoided, construction is convenient and fast, and the method is more economical and reasonable.

The utility model relates to the technical field of textile machinery manufacturing, in particular to a weft yarn cutting device which comprises a cutting executing mechanism, a force transmission connecting rod mechanism and a cam mechanism. The cam mechanism is directly driven by the beating-up power transmission shaft, and power is transmitted to the cutting executing mechanism through the force transmission connecting rod mechanism. Therefore, on one hand, the reed for beating-up and the weft cutting device for cutting weft are jointly driven by the same power source, and it can be effectively guaranteed that the beating-up action and the weft cutting action are always kept synchronous in the whole weaving process; and on the other hand, in view of the characteristics of the cam mechanism, the non-constant-speed motion and the transient stay action with a large speed change range can be conveniently and quickly realized, so that the cutting execution mechanism can execute the cutting action according to an expected track.

The utility model discloses an ultrasonic pneumatic clamping mechanism which comprises a station disc, a plurality of supporting shafts are arranged at the top end of the station disc, the ultrasonic pneumatic clamping mechanism further comprises a clamping jaw mechanism, and the outer walls of the supporting shafts are sleeved with the clamping jaw mechanism. The clamping piece is arranged at the end, located at the center position, of the clamping jaw mechanism; and the driving mechanism is arranged on one side of the station disc, and the output end of the driving mechanism is connected to the control end of the clamping jaw mechanism. The clamping jaw mechanism is convenient to operate and control through the arrangement of the driving mechanism, the clamping jaw mechanism can be coarsely adjusted firstly through the arrangement of the rocker arm structure, then the air cylinder is used for fine adjustment after the coarse adjustment is completed, and through the matching of the adjusting arrangement, the clamping jaw mechanism can be accurately adjusted through the cooperation of two clamping operations in the workpiece clamping process. And the fine adjustment is controlled by the air cylinder, so that the operation of the clamping force is more uniform.

The present invention discloses a device for reducing frictional resistance in small-bore continuous tubing drilling and a method for using the device, and belongs to the technical field of petroleum drilling. The device includes a hydraulic oscillator and a free-limiting spiral ball straightener; the hydraulic oscillator is arranged at the lower part of the hand-dropping tool; the free-limiting spiral ball straightener is arranged at intervals in the inclined well section, including a straightener body and a free-limiting fixing device coaxially arranged at both ends of the straightener body, the axial ends of the straightener body are inner cone structures, and the connecting end of the free-limiting fixing device is an outer cone structure, and the two are plug-fitted, and the straightener body and the free-limiting fixing device are both provided with a center hole for accommodating the continuous tubing to pass through. The present invention utilizes a hydraulic oscillator and a free-limiting spiral ball straightener to solve the problems of difficulty in carrying sand, large frictional resistance, and severe blocking in continuous tubing drilling operations.

The application discloses a kind of auxiliary devices and methods for incremental launching construction of through steel truss arch bridge, and the auxiliary device includes two steel cushion beams between the walking jack on the top of two rows of multiple temporary piers and the two steel longitudinal beams with inverted V-shaped longitudinal slope with high middle and low ends in length direction, the top plane of each steel cushion beam is parallel to the bottom plane, multiple groups of steel cushion block assemblies are fixed on the top plane of each steel cushion beam, the top surface of each steel cushion block is consistent with the slope of the bottom inclined surface of each steel longitudinal beam at its length position and mutually adheres;The length of each steel cushion beam is shorter than the length of each steel longitudinal beam, and the steel guide beam at both ends of each steel cushion beam is an integral whole, and the steel guide beam at both ends of each steel cushion beam is cut off after the incremental launching of through steel truss arch bridge. The incremental launching construction process using the auxiliary device will not damage the main steel beam of the bridge, only normal reinforcement structure and support structure are needed for the connection of steel guide beam, and steel material is relatively saved.

The invention, which relates to the technical field of human resource training, discloses a service system and method for external-assistance human resource training. External-assistance personnel of each training course are screened out according to each training course required by each target region; the environment safety of each target region and the necessity and cost of offline training of each training course in each target region are evaluated, the training mode of each target region is analyzed, and external assistance personnel with targeted professional ability and experience are selected for different rescued regions; the professional performance and the implementation effect of an external assistance human resource training project are improved, the training effect and the working efficiency are ensured, the professional image of external assistance work can be shaped, cooperation with a rescued area is promoted, meanwhile, the safety and the cost of training are predicted, then the training mode of each target area is selected, and the training efficiency is improved. The safety of the outside-assistance personnel is effectively guaranteed, the cost of the outside-assistance human resource training project is controlled, and smooth implementation of the outside-assistance human resource training project is guaranteed.

The invention provides application of p-hydroxycinnamic acid in preparation of a medicine for preventing and treating noise-induced deafness. The invention has the advantages that the p-hydroxycinnamic acid has the advantages of strong pertinence, high safety, convenience in medication, good patient compliance and the like, not only effectively overcomes the defects of the existing noise-induced hearing loss treatment medicines, but also provides a brand-new preventive treatment thought; important clinical popularization significance and industrial application prospects are realized.

The invention relates to an enterprise production and manufacturing management system, which comprises a system management module, a resource management module, a plan management module, a library checking management module and a query and printing module, and is characterized in that the system management module is used for user authority management including user data addition, deletion and modification and corresponding authority; the resource management module is used for adding, deleting and storing resources; the production plan management module is used for managing and generating a production plan, a workshop operation plan, a workshop production progress plan, a raw material demand plan and a part demand plan and adding, deleting and storing the plans; according to the invention, the time required by planning can be shortened, and the current inventory information can be provided for the planning personnel and the warehouse administrator in time, so that the workshop inventory is fully utilized, the occupation of inventory funds is effectively reduced, and the productivity of enterprises is greatly improved.

The present application relates to the technical field of overhaul of hydroelectric generating set, in particular to a seat ring fixed guide vane opening construction method and a construction device, the method uses the geometric information of the fixed guide vane or its adjacent structure to deduce the datum point of the opening, obtains the first coordinate of the datum point; the profile feature of the fixed guide vane is matched with the datum point of the opening, the second coordinate of the datum point is obtained; the deviation value between the first coordinate and the second coordinate is calculated, the deviation value is compared with the preset threshold value, and the accurate coordinate of the datum point is determined based on the comparison result; the contour line of the opening is determined according to the accurate coordinate and the actual size of the opening; the opening operation is performed according to the contour line of the opening; the present application realizes the accurate calibration of the position to be opened by checking and correcting the positioning results obtained by two ways; then the systematic opening operation including layered drilling, cutting communication, and precise shaping of the orifice and the guide vane head is performed.

This invention relates to the field of mine ecological restoration technology, and discloses a method and system for mine ecological restoration. The restoration method includes selecting an area with residual heat from underground coal fires on a mine slope where residual coal has spontaneously combusted as a restoration zone; reinforcing and stabilizing the slope of the restoration zone; laying a sludge substrate with a moisture content of 60%-80% on the stabilized slope surface, and using the residual heat from the underground coal fires for in-situ biological drying until the volume reduction reaches a preset threshold of 40%-60%; subsequently, covering the dried sludge substrate with a soil substrate layer and a soil microbial substrate layer to construct a composite growth matrix; and finally, maintaining vegetation on the slope. This invention cleverly combines the residual heat from abandoned mines with urban sludge treatment, achieving the harmlessness, reduction, and resource utilization of sludge, while simultaneously solving the problems of excessively high soil temperatures and difficulty in plant survival in mining areas, achieving the goal of ecological restoration through waste treatment and synergistic efficiency.

The present application relates to the technical field of surgical robots, and discloses a terminal execution assembly, a minimally invasive surgical instrument and a minimally invasive surgical system. The terminal execution assembly comprises a movable piece, a first support, a second support, an engagement assembly, a connecting piece, a first traction wire and a second traction wire. The first support is provided with a first pin and a second pin, the movable piece is connected to the first pin, and the second pin is provided with a first pulley. The second support is provided with a third pin parallel to the second pin, and the third pin is provided with a second pulley. The engagement assembly comprises engaged first tooth structure and second tooth structure, the first support is provided with the first tooth structure, and the second support is provided with the second tooth structure. The connecting piece is movably sleeved on the third pin and connected to the second pin. The first traction wire comprises two first traction sections, the first traction sections are wound around the first pulley and the second pulley, and the first traction sections are connected to the movable piece. The second traction wire is connected to the connecting piece. The first traction wire of the present application will not be pulled, prolonging the service life and improving the safety of the operation.

The utility model discloses a folding structure of a baby carriage frame. Comprising a bicycle folding pull handle, a stay wire body, a stay wire head resistor body, a stay wire spring, a T-shaped stay wire resistor body, a damping rod folding iron sheet, a bicycle folding clamp guide groove, a bicycle folding clamp T-shaped stay wire resistor fixing position, a guide groove protrusion, a bicycle folding spring, a bicycle folding clamp body, a damping rod fixing rubber piece, a guide groove clamping groove, a bicycle folding clamp clamping groove, a basket folding iron sheet, a rear foot U-shaped pipe and a basket pipe. A triangular supporting structure is adopted, the baby carriage can be more stable when being pushed, the phenomena of shaking and instability are effectively reduced, safer and more comfortable riding experience is provided for children, and the iron pipe is ingeniously additionally arranged below the baby carriage folding clamp for supporting so as to solve the problem that the stress of the baby carriage folding clamp part in a traditional baby carriage is weak. The strength of stress points is increased, the weight pressure from a vehicle body and a riding child is effectively dispersed, and the overall bearing capacity and stability of the frame are further improved.

The utility model discloses an insulating slidable anti-toppling device for a ladder truck, which comprises a shell, supporting plates are symmetrically welded on the left side and the right side of the shell, an insulating auxiliary wheel is arranged between the two supporting plates, and a fixed cylinder is welded on the top of the shell; insulating plates are connected to the left side and the right side of the shell and located between the two supporting plates through bolts, adjusting holes are formed in the supporting plates, and shaft rods are fixedly connected to the interiors of insulating auxiliary wheels in a penetrating mode; the top of the fixing cylinder is rotationally connected with a rotating disc through a shaft, and an operation handle is welded to one side of the rotating disc. The insulating slidable anti-toppling device is used for the ladder truck, the ladder truck can still be smoothly pushed on a track when the device is closed through a pair of insulating auxiliary wheels, the operation safety of operators on the ladder truck is guaranteed, meanwhile, two insulating plates are additionally arranged on the contact face of the device and a steel rail, the situation that a track circuit generates a red light band due to operation of the ladder truck is avoided, and the safety of the ladder truck is guaranteed. And equipment operation safety is guaranteed.

The present invention discloses a method, device and readable storage medium for realizing top covers of different configurations of a common mode. The method comprises: obtaining a simulation file of the entire process of a first common mode top cover through a simulation program, obtaining a first simulated springback result and a second simulated springback result based on the simulation file; judging whether the trends of the first simulated springback result and the second simulated springback result are consistent; if they are consistent, after obtaining the springback of a first MCC constraint point according to the second simulated springback result, performing springback compensation on the first common mode top cover to obtain a second common mode top cover, and uploading the second common mode top cover to the simulation software for analysis and verification, simulating and judging whether the first verification result of the second common mode top cover meets the requirements, and if the first verification result meets the requirements, outputting the springback compensation data of the second common mode top cover. The method ensures the smooth implementation of the common mode top cover process and achieves the effect of reducing the mold development cost.

The invention discloses a method for segmentally measuring the wet etching rate of a crystal hemisphere. The method comprises the following steps: firstly, dividing the crystal hemisphere into a low-rate region, a medium-rate region and a high-rate region in a direction from an equator to a north pole; determining the etching time of the high-rate region, the medium-rate region, the low-rate region and the crystal hemisphere; the method comprises the following steps: setting four crystal hemispheres with the same size, respectively determining the etching time of a high-rate region, a medium-rate region, a low-rate region and the crystal hemispheres, and carrying out wet etching along the respective divided corresponding regions to obtain the ratio of the respective radial etching distance to the etching time; and finally, synthesizing the etching rate data of the high-rate region, the medium-rate region and the low-rate region by referring to the etching rate of the hemisphere of the crystal to obtain the whole crystal face etching rate of the crystal. According to the method, the crystal hemisphere is divided into the high etching rate area, the middle etching rate area and the low etching rate area, and different etching time is determined according to different areas, namely, the rate of each etching area is measured in a segmented manner so as to accurately obtain the whole crystal face etching rate of the crystal.

The present invention relates to the technical field of generator outlet circuit breakers, and specifically discloses an auxiliary installation device for generator outlet circuit breakers and a method for using the device. The device includes a support beam, a steel plate, a longitudinal beam and a cross beam, wherein a plurality of the support beams are interconnected by a plurality of the longitudinal beams and cross beams to form a platform frame structure on which the steel plate is fixed, and the platform frame can support the weight of the generator outlet circuit breaker to be removed or installed; two mutually parallel ground guide rails are provided on the steel plate, and the center width of the two ground guide rails matches the center width of the circuit breaker legs, and a hand winch traction point is provided at one end of the platform frame structure. The present invention can reduce the risk of equipment installation, improve maintenance efficiency, and at the same time avoid the hidden danger of suspended oblique pulling during the installation of the generator outlet circuit breaker, thereby ensuring the smooth implementation of the replacement of the generator outlet circuit breaker.

A configurable multi-spectral remote sensing stereo imaging system and a design method relate to the field of multi-spectral oblique remote sensing imaging technology. In order to solve the problem of limited oblique image information acquisition capability in existing drone-based multi-spectral imaging systems, as well as the lack of acquisition synchronization and cumulative errors between multiple cameras. Aiming at the multi-angle and multi-spectral data acquisition requirements of complex remote sensing scenes, the present invention designs a configurable camera mounting structure, a synchronous trigger control module, and a camera internal and external parameter calibration method, adopts a hinge structure and a fixed latch to realize the camera quantity configuration and tilt angle adjustment functions, designs and develops a camera synchronous trigger module based on a microcontroller and pulse width modulation technology to realize data synchronization acquisition, and designs and develops a multi-camera calibration method to obtain accurate spatial transformation relationships between cameras, so as to realize the correction of multi-camera position and posture information.

The invention relates to the technical field of live broadcast, and provides a system for driving offline media interaction through an online live broadcast room, which comprises a live broadcast room, an online live broadcast system and an offline media system, the online live broadcast system and the offline media system are communicated with the live broadcast room, and the live broadcast room comprises a picture and audio stream acquisition device, a stream pushing device and a background management system. The stream pushing equipment encodes collected offline media pictures and audio stream data and encapsulates the data through an RTMP (Real Time Messaging Protocol) to form live stream audio and video data; under the background of wide development of indoor and outdoor light and shadow imaging media, offline media scenes such as a large screen or projection are collected and pushed to online users through live broadcast stream pushing equipment, and the online users interact through an interaction system and participate in content change and experience formation of offline media. Therefore, the interactive live broadcasting room which drives offline experience through online interaction is formed, the experience feeling of online users is improved, and meanwhile offline media activities can be implemented on time.

The invention discloses an ecological restoration engineering supervision method and device based on an unmanned aerial vehicle and a medium, and the method comprises the steps: controlling the unmanned aerial vehicle and a satellite to collect image data of a project supervision region at the same time, and obtaining unmanned aerial vehicle data and satellite remote sensing data; wherein the take-off and landing point of the unmanned aerial vehicle is determined by identifying the ecological change trend of a project supervision area; correcting the satellite remote sensing data based on the unmanned aerial vehicle data to obtain multispectral reflectivity data; and evaluating the ecological restoration effect of the project supervision area according to the multispectral reflectivity data to obtain an ecological restoration project supervision result. According to the ecological restoration engineering supervision method and device based on the unmanned aerial vehicle and the medium, the unmanned aerial vehicle and the satellite are controlled to collect the remote sensing data of the project supervision area at the same time, scientific processing and analysis are carried out based on the data, the comprehensiveness of the data is guaranteed, the data collection and analysis efficiency is improved, and the method is suitable for popularization and application. The problem that it is difficult to quickly and accurately supervise the ecological restoration project can be solved.

The invention discloses a lunar orbit and balance dynamic parameter resolving and forecasting method and system, and the method comprises the steps: considering a mass point gravity model based on a rear Newton frame, the interaction between a lunar graph and other planetary mass points of a solar system, and the influence of an earth graph; establishing a high-precision lunar orbit dynamic model under a generalized relativistic framework; considering the moon rotational inertia and the moon torque, and establishing a double-layer moon balance dynamic attitude dynamic model; when the initial condition of integration meets the preset precision, respectively forecasting the orbit parameters and the balance dynamic parameters by adopting an adaptive step integrator and an adaptive step integrator with a time-delay effect to obtain orbit and balance dynamic parameter initial products with time sequence labels; and when the initial condition of the integration does not meet the preset precision, processing the historical observation data by using a nonlinear solver based on automatic differentiation to obtain the optimal solution of the to-be-estimated parameter in the initial condition, and carrying out forecasting again.

The invention discloses an air-blowing centralized-discharging type direct seeding machine which comprises a main body frame, a walking device, a seed separating device and a ditching and soil covering device, the ditching and soil covering device is connected with the main body frame through a lifting mechanism; the seed separating device comprises a seed box and a seed separating mechanism; the seed distribution mechanism comprises a fan, a central seed-metering device, a seed-metering driving mechanism, a conveying pipe and a seed distributor; one end of the conveying pipe is communicated with the fan, and the other end of the conveying pipe is communicated with the seed distributor; the upper end of the central seed-metering device is communicated with the lower end of the seed box, and the lower end of the central seed-metering device is communicated with the conveying pipe; the furrowing and soil covering device comprises a furrowing and soil covering frame and a furrowing and soil covering module, and the furrowing and soil covering module comprises a furrow opener and a soil covering mechanism. The direct seeding machine can realize ditching, seeding and soil covering functions, is rich in function, more convenient to operate and higher in working efficiency, can accurately control the seeding density, avoids the problems of seed overlapping, seed omission and the like, and ensures the uniformity of the seeding density.

The utility model relates to the technical field of mold shell fixing and in-furnace center positioning, and discloses a mold shell fixing and in-furnace center positioning structure for vacuum melt injection, which comprises a fixing tool main body, a mold shell and a lifting platform, an L-shaped fixing buckle is arranged on the outer side of the fixing tool main body, a locking bolt hole is arranged on the L-shaped fixing buckle, and the lifting platform is connected with the mold shell. The L-shaped fixing buckle is fixedly connected to the fixing tool body through the locking bolt, the locking bolt is connected into the locking bolt hole in a threaded mode, and a dovetail groove is formed in the L-shaped fixing buckle. According to the utility model, the mould shell can be fixed and positioned in the center quickly, so that the defects of cold shut or under-injection of a casting caused by pouring of the mould shell, pouring of molten steel out of the mould shell and overlong time for fixing and positioning the center of the mould shell in the pouring process are effectively avoided, and the quick, safe and smooth implementation of the smelting and pouring process is ensured.

The invention belongs to the technical field of production plan management methods suitable for multi-variety discrete manufacturing, and particularly relates to a production plan management method suitable for multi-variety discrete manufacturing, which comprises the following steps: market investigation and demand prediction: collecting information such as industry dynamics, market trends, customer demand changes and the like; according to the method, quantitative and qualitative analysis methods such as time sequence analysis, regression analysis and Delphi method are applied to predict product demands in a period of time in the future to determine a production plan and time arrangement of each product, and historical data is utilized to predict future demands, so that a corresponding production plan is formulated, and the production efficiency is improved. All materials and parts required for producing each product are listed, the required material quantity and purchase time are calculated based on a production plan MPS and a bill of material BOM, production tasks are allocated to each production unit or equipment, production resources such as the machine module and the manpower module are reasonably allocated, and possible bottle necks in the production process are identified.

A control method of a front guide beam of a bridge girder erection machine, the front guide beam is provided with an upper guide rail and a lower beam from top to bottom; a plurality of support bases are arranged on the lower beam, the support bases walk along the lower beam to correspond to the positions of bridge piers; the control method comprises the following steps: the second supporting leg is lifted, the front guide beam is moved transversely to the position between two bridge piers by driving the beam moving driving wheel; the support bases are moved along the front guide beam to align the support bases with the positions of the bridge piers; the through hole on the base body is aligned with the reserved longitudinal reinforcement; the second supporting leg is lowered to make the bottom of the base body contact with the top of the bridge pier, the locking device is loosened to make the supporting column freely fall, the bottom of the supporting column contacts with the top of the bridge pier; the locking device is started to lock the supporting column. The present application can accurately align the support bases with the bridge piers in transverse and longitudinal directions, accurately pass the reserved longitudinal reinforcement into the through hole reserved on the support base, and reliably support on the top of the bridge pier through a plurality of liftable and lockable supporting columns.

The invention provides a mining wide-body vehicle battery replacement control method which comprises the following steps: S1, detecting the state of a battery replacement switch; s2, obtaining the state of the whole vehicle; s3, the vehicle control unit obtains a position signal through a CAN bus; s4, the vehicle control unit judges whether the position signal meets a preset requirement or not, if yes, the step S6 is executed, and if not, the step S5 is executed; s5, the vehicle control unit controls an electromagnetic reversing valve, so that a cylinder rod of the air cylinder moves in place according to preset requirements; s3 to S4 are executed again until the position signal meets the preset requirement, and S6 is executed; s6, observing whether the states of the locking air cylinder and the lifting air cylinder displayed by an instrument indicating lamp meet preset requirements or not, if yes, executing S7, and if not, returning to S4; and S7, executing a battery replacement or power-on process. According to the invention, rapid battery replacement can be realized, the method is suitable for the battery replacement operation of the mining vehicle in a severe environment, the input cost of use of the mining vehicle is reduced, and the battery replacement convenience of the vehicle is improved.

The application discloses a composite material fracture energy calculation method considering reinforcement-matrix interface dispersion, and comprises the following steps: S1, a matrix crack fracture energy model is established; S2, a reinforcement-matrix interface fracture energy model is established; S3, a composite material fracture control equation model is established; S4, a composite material critical energy release rate is modified; S5, the interface phase field, the displacement field and the crack phase field in the composite material fracture control equation are discretized by using the finite element method, and an incremental iteration is carried out, so that the crack propagation in the composite material considering the interface dispersion is calculated. Through the adoption of the phase field model, the advantages of realizing the micro-to-macro multi-scale simulation are utilized, the properties of the interface in the composite material are associated with the properties of the matrix, that is, the interface crack propagation and other fracture properties of the composite material under the action of the load are dispersed to the surrounding matrix in the form of a continuous exponential function, and a mechanical model for more accurately predicting the mechanical behavior and fracture evolution of the composite material is established.