47results about How to "Solve laying problems" patented technology

The invention relates to a method for designing a jointless track of a long and large bridge girder longitudinal butt plate type ballastless track for a high-speed railway. According to the method provided by the invention, ANSYS software is utilized to establish a latitude vertical space coupling statics model of the jointless track of the long and large bridge girder longitudinal butt plate type ballastless track for the high-speed railway, and ABAQUS software is utilized to establish a space coupling kinetic model. According to the method, the compositions of systems such as a steel rail, a fastener, track plates, a slurry placement layer, bed plates, a sliding layer, a consolidation mechanism, high-strength extruded sheets and L-shaped side check blocks, and structures such as supporting layers on a subgrade soil body and a road foundation and the action of high-speed vehicles are taken into full consideration, and friction factors of sliding layers on different bridge or friction plates, the longitudinal resistance of the fastener, the temperature difference of the bridge girder, the temperature difference of a ballastless track structure, the elastic modulus of the slurry placement layer and the like are calculated, so that the stress and deformation of the track and the bridge girder are obtained. The method provided by the invention is suitable for the design and computational check of the jointless track of the long and large bridge girder longitudinal butt plate type ballastless track for the high-speed railway, and providing service for the design calculation as well as conservation and maintenance of the high-speed railway.

The invention discloses an artificial lawn and a fabrication process thereof. The lawn comprises a soil basal layer, a warp knitting grid net paved above the soil basal layer, and fiber grass clusters knitted on the warp knitting grid net, wherein the warp knitting grid net is in a grid structure which is formed by interlacing warps and wefts, natural grass is inserted into grids by the warp knitting grid net, and grass roots of the natural grass are planted in the soil basal layer; the warps and the wefts are all grass silk yarn harnesses knitted and twined by fiber grass yarns, and the grass roots of the fiber grass clusters are knitted in the grass silk yarn harnesses. The process comprises the steps: producing the fiber grass yarns; arraying a plurality of fiber grass yarns side by side, then, knitting the grass yarns into a fried dough twist grass yarn harnesses, and knitting the grass yarn harnesses into the warp knitting grid net; building the soil basal layer on the ground; paving the knitted warp knitting grid net above the soil basal layer; inserting or planting the natural grass in the warp knitting grid net. The artificial lawn and the fabrication process thereof have the benefits that materials, such as base fabrics and mucilage glue, are not needed, so that the economic cost is reduced; the natural grass is planted in the grid, so that the artificial lawn and the fabrication process thereof are more real and have strong flexibility.

The method interconnect broadband wireless access (BWA) network with optical access broadband network (OAN) through any reference point from reference point T, a, ODN, and V inside OAN. Using the disclosed method can solve issue of interconnection between network of world interaction microwave access (WiMAX) and OAN. The invention provides a developing approach for OAN operation manager to develop WiMAX network. The invention puts forward tight coupling mode and loose coupling mode. In the tight coupling mode, building WiMAX network makes the most of line resources laid by original OAN network so as to avoid additional interconnection wiring and lower cost for building WiMAX network. In the loose coupling mode, WiMAX network and OAN network are already built by two operation managers so that interconnection and intercommunication are carried out between two networks in order to share services and application resources on two networks.

The invention discloses an intertidal belt submarine cable paving method which comprises the following steps: (1) at high tidal level, drawing a shallow draught flat-bottomed barge with cable to a starting position of circuit in which submarine cable is needed to be paved; (2) placing a cable guiding cage located at barge tail between seawater and beach face; (3) releasing the submarine cable to the beach face from the cable guiding cage through a guiding and twisting rack on the barge; and (4) burying the submarine cable to needed depth through a paving device. By the intertidal belt submarine cable paving method, the problem of intertidal belt submarine cable paving is solved, construction cost is greatly lowered, and submarine cable construction process is simultaneously optimized.

The invention provides an engine pipe laying system in the technical field of pipe laying. In the invention, an interface module is in charge of realizing data exchange between the engine pipe laying system and three-dimensional designing software; a two-dimensional expansion module of three-dimensional laying space is in charge of indicating three-dimensional laying space by a two-dimensional mode; an identification sequencing module of a pipe laying density area is in charge of identifying the density of the pipe laying area and setting a laying sequence of pipes; a non-laying area diagram generating module transforms conditions and restrictions for laying the pipes into a uniform visible non-laying area diagram and the uniform visible non-laying area diagram is represented on a two-dimensional expanded view; and each condition and restriction are transformed to a non-laying area on the view; a convex hull obstacle-avoiding calculation module is used to acquire a shortest path of obstacle avoiding in the non-laying area diagram by a convex hull method, and to generate a track of a pipe centerline. In the invention, the shortest pipe path bypassing the obstacle can be acquired, and the existing computational complexity of engine pipe laying is simplified.

The invention discloses a low pressure pipeline mounting process used in a 300m<2> sintering low temperature waste heat power generation system. The mounting process comprises the following steps of manufacturing pipes, pipe fittings as well as elbows, supports and hangers in configuration of pipeline accessories; mounting pipeline welding positions in mounting of the pipelines, middle and low pressure pipelines, drain and blow off pipes, valves, flanges, the supports and hangers; assembling welding joints, testing a pipeline system, and cleaning the pipeline system. The process can be suitable for the pipeline paving in the 300m<2> sintering machine low temperature waste heat power generation system by orderly mounting the pipelines, so the power generation efficiency is ensured, and the problem that the existing mounting process cannot meet the pipeline paving demands in the 300m<2> sintering machine low temperature waste heat power generation system.

The invention belongs to the field of agricultural mechanical device, and relates to an adjustable laying apparatus for a shallow-buried drip irrigation band. The adjustable laying apparatus comprises a structure frame, depth limiting wheels, disc breaking wheels, trench digging ploughs, drip irrigation band laying devices, guide wheels, covering devices, drip irrigation guide sleeves, rolling wheels and drip irrigation suspension frames. The structure frame is provided with a suspension port, lower portions of two side of the structure frame are provided with depth limiting wheels, four groups of drip irrigation band laying devices are orderly disposed under the structure frame, each disc breaking wheel and each trench digging plough are disposed under each group of drip irrigation band laying device, each drip irrigation suspension frame is disposed behind each group of drip irrigation band laying device, a drip irrigation band on the suspension frame is connected with each guide wheel of each drip irrigation band laying device through each drip irrigation guide sleeves and each rolling wheel, each covering device is disposed behind each guide wheel, and a spring is disposed between each rolling wheel shaft and each covering device. The adjustable laying apparatus can lay four rows of drip irrigation bands at the same time, the work efficiency is high, and the buried depth and the laying width of a drip irrigation band can be adjusted.

The invention relates to an in-situ water quality purification device. A water quality purification and repair technology mainly targets at urban inland rivers and small and medium-sized rivers in rural areas.The in-situ waterquality purification device comprises a float bowl, an elastic permeable frame, and a permeable pile fiber filter cloth, filler (honeycomb semi-soft filler or fiber-type softfiller), an aerator pipe buckle, a weight iron chain, a positioning ring, a floating block, and a plant system, the in-situ water quality purification device mainly targets at deteriorationand eutrophication of water quality in the urban inland rivers and the small and medium-sized rivers in the rural areas to provide a treatment technology for achieving surface water quality standards. The outstanding features and significant progress of the in-situ water quality purification device are mainly that the in-situ water quality purification effect can be greatly improved; seasonal water level change is not influential; the problem of underwater aerator pipe laying can be effectively solved; the fiber pile filter cloth is used for filtering and absorbing suspended particles in water, and thetransparency of a water body is greatly improved.

The invention relates to the technical field of building structures, in particular to a cable dome structure. The cable dome structure comprises a central pressing rod, an inner ring supporting component and an outer pressing ring beam, and the central pressing rod, the inner ring supporting component and the outer pressing ring beam are coaxially arranged from inside to outside in sequence. The inner ring supporting component comprises a ring cable assembly and supporting rod assemblies. The supporting rod assemblies are formed along the ring cable assembly in a continuous connecting mode. Each supporting rod assembly comprises two side supporting rods and a middle supporting rod, wherein every two of the two side supporting rods and the middle supporting rod form a plane, the upper endsof the three supporting rods are connected to form an upper fulcrum of the supporting rod assembly, the lower ends of the two side supporting rods serve as two side fulcrums of the supporting rod assembly, the lower end of the middle supporting rod serves as a lower fulcrum of the supporting rod assembly, the side fulcrums and the lower fulcrum are connected with the ring cable assembly, the upperfulcrum is connected with the lower end of the central pressing rod through an inner ring upper oblique cable and connected with the upper end of the central pressing rod through an inner ring ridgecable, the lower fulcrum is connected with the upper end of the central pressing rod through an inner ring lower oblique cable, and the upper fulcrum and the side fulcrums are connected with the outerpressing ring beam.

The invention relates to a portable special optical cable electric take-up and pay-off table and belongs to the field of optical cable take-up and pay-off equipment. The portable special optical cable electric take-up and pay-off table is characterized by comprising a bottom plate, a first vertical plate assembly, a second vertical plate assembly, an adjusting structure assembly, an electric reciprocating type cable arranging device, a power structure assembly, a brake structure assembly and a control system. A brushless direct-current motor driver drives a brushless direct-current gear motor to control a optical cable reel to rotate so as to achieve cable winding or cable unwinding, a stepping driver controls a stepping motor to drive the electric reciprocating type cable arranging device to move circularly, electric transmission is adopted, the size is small, the weight is light, carrying is convenient, and the portable special optical cable electric take-up and pay-off table adapts to the severe natural environment in the field and can be flexibly carried on various vehicles. The laying and recycling of the optical cable are not influenced by the environment, the laying of the optical cable is rapid and flexible, laying and recycling can be carried out in a short time, and the problem that the laying and recycling of the optical cable are difficult due to the influence of the environment is solved.

The invention discloses a limiting structure of an insulated bus bridge. The device comprises a groove body and a pressing plate, a limiting groove is fixedly connected to the bottom of an inner cavity of the groove body, clamping holes are formed in the two sides of the groove body, fixing blocks are fixedly connected to the two sides of the pressing plate, spring grooves are formed in the surfaces of the fixing blocks, reset springs are fixedly connected to the inner walls of the spring grooves, and movable plates are fixedly connected to one ends of the reset springs. A bus is placed through the limiting groove; a positioning plate at the bottom of the pressing plate fixes the upper surface of the bus; the two ends of the clamping rod fix inner cavities of the blocks; the limiting plateis arranged in the clamping holes and extends to the inner cavity of the clamping hole under the driving of the reset elastic force of the reset springs, so that the pressing plate is fixed, the effect of limiting the bus by the positioning plate and the limiting groove is achieved, and the problem that the buses tend to be disordered and inconvenience is brought to laying and overhauling of thebuses due to more arrangement of the buses in the bridge is solved.

The invention discloses a downhole track-free transport method. A center line of a roadway is used as a baseline, and a plurality of independent sliding devices are laid vertically with the baseline.At least two ground wheels located on both sides of the baseline are arranged on each sliding devices. A transport car is arranged on a plurality of sliding devices. An I-shaped leg is arranged at thecontact between the bottom of the transport car and the ground wheels. The bottom of the I-shaped leg is placed on the ground wheels, so that the car slides on the ground wheels to achieve moving forward or backward. Due to the ingenious design of the sliding devices, each sliding device is light in weight, short in length, small in size, and convenient to transport and carry; and the design length of the car body is long, the transport volume is large, but the car is easily driven and can conveniently move forward or backward, and the problem of the original track laying is solved thoroughly.

The invention discloses a ground wireless monitoring method for a carrier rocket. The method comprises the following steps of 1, arranging 37 carrier rocket ground wireless sensors on the carrier rocket; 2, arranging 2-4 wireless repeaters on each layer of movable revolving platform; and 3, setting an ID address for each of the 37 carrier rocket ground wireless sensors in the step 1, broadcasting a synchronous time synchronization packet to the 37 carrier rocket ground wireless sensors by a wireless receiving controller, and after each carrier rocket ground wireless sensor receives the synchronous time synchronization packet, taking the time when the synchronous time synchronization packet is received as a time reference, sequentially sending sensing data and forwarding the sensing data to the wireless receiving controller by each carrier rocket ground wireless sensor through the wireless repeater. According to the method, the problems of heavy cable, difficult wiring, long test period, tedious withdrawing and the like of a wired network are effectively solved, manpower resources are reduced, the test efficiency is improved, and the traceability of a data transmission process is ensured.

The invention discloses an intelligent cathode protection system based on LoRa spectrum spread communication and belongs to the technical field of anti-corrosion cathode protection of metal materials.The intelligent cathode protection system based on LoRa spectrum spread communication comprises a main monitoring station, a protection direct-current power supply, multiple wireless testing piles and multiple reference modules; the main monitoring station is connected with the protection direct-current power supply through a TCP/IP protocol or a Modbus protocol based on an RS485 serial port andsends a configuration adjustment instruction to the protection direct-current power supply; and the wireless testing piles are connected with the main monitoring station through LoRa wireless communication. In the intelligent cathode protection system based on LoRa spectrum spread communication, a LoRa spectrum spread wireless communication technology is adopted for the wireless testing piles andthe main monitoring station, and the problem that existing wire communication lines are difficultly laid and maintained is solved. Since actual connection lines are reduced, the pressure drop caused by line resistance is removed, and accordingly the accuracy of measurement data is improved.

The invention provides a construction method of a special-shaped slide way. The construction method solves the laying problem of profiled steel sheets in the special-shaped slide way and ensure that the shape of the special-shaped slide way meets the design requirement. According to the construction method of the special-shaped slide way, the BIM technology is introduced into manufacturing of the special-shaped slide way, the manufacturing precision of profiled steel sheet units is guaranteed, all the profiled steel sheet units are hoisted in place according to a special-shaped slide way model, correct assembling of a special-shaped slide way bottom plate is achieved, therefore the laying problem of profiled steel sheets in the special-shaped slide way is solved, and it is guaranteed that the shape of the special-shaped slide way meets the design requirement.

The invention discloses an extrusion method for on-site construction of geopolymer, wherein a lattice baffle plate is connected with a lifting system to provide power for the whole extrusion process.In order to ensure that a closed system is formed between the double-layer stirring pot and the lattice baffle, a rubber sleeve is arranged at the circular ring of the lattice baffle. The double-layerstirring pot is composed of inner and outer layers, which can rotate mutually, and the extrusion outlets are arranged at the bottom of the double-layer stirring pot respectively. In the mixing process, the internal and external extrusion outlets are dislocated to ensure the sealing of the mixing pot, and the internal and external extrusion outlets overlap each other to achieve the smooth extrusion of geopolymer. The invention solves the field layout problem caused by the geopolymer with high viscosity and poor fluidity, and has relatively important significance for the practical application of the geopolymer.