266results about How to "Avoid demolition" patented technology

The invention relates to a method for testing double segments Zinc oxide arrester insulation state, which belongs to the field of power supply establishment test technology. According to the invention, the first grounded ammeter is connected in series with Zinc oxide arrester lower segment, the middle connecting part between the two segments is connected with direct current high voltage test instrument and the second ammeter, pressurizing from the middle connecting part of the two arrester, at first observating the first ammeter, adjusting for obtaining the leak current valve of the arrester; then adjusting the direct current high voltage test instrument, reading current valves of the first ammeter and the second ammeter, obtaining the leak current valve of the upper segment of the arrester from the difference of the two readings. The method of the invention can avoid removing high voltage down-lead, without ascent, reduce the labour intensity and working danger, at the same time avoid the bother of wire change in test, and improve working efficiency. In addition, because the middle segment wire of the double segments Zinc oxide arrester is lower than the top of the upper segment, it is safe and simple to test wire with a certain included angle.

The invention provides a dragging, translating and lowering device for dismantling a pier top beam section and a pier. The device comprises four supporting points, wherein each supporting point comprises four steel pipe piles, four steel pipe supporting frames, four transverse girders, four longitudinal translation beams, two longitudinal translation devices and two lifting and lowering systems; transverse translation beams can move in a transverse direction; the longitudinal translation devices are arranged at the upper parts of the transverse translation beams; the lifting and lowering systems are fixed on the longitudinal translation devices; the transverse translation beams are used for adjusting transverse positions of the lifting and lowering systems; the longitudinal translation devices are used for adjusting longitudinal positions of the lifting and lowering systems; and the lifting and lowering systems are used for lifting or lowering the pier top beam section and the pier. A dragging, translating and lowering method for dismantling the pier top beam section and the pier, provided by the invention, is capable of economically and efficiently solving a dismantling problem of a pier top box beam and pier structure under in the absence of the hoisting of a crane, suitable for dismantling the pier top beam section and the pier of a beam bridge or a bridge with a concrete girder and especially suitable for dismantling engineering for the pier top box beam and pier structure of a multi-span continuous beam bridge using a whole-span lowering dismantling technology.

A mount for attaching a projection device to an overhead structure includes a device interface operably attachable to the projection device with a plurality of fasteners. The device interface has a first portion and a second portion slidably disposed on the first portion. The first and second portions together define a plurality of retaining structures, each retaining structure for receiving a separate one of the plurality of fasteners. The second portion is selectively slidably shiftable relative to the first portion between a first latched position wherein each of the plurality of fasteners is received and retained in a separate one of the retaining structures and a second unlatched position wherein the plurality of fasteners is freely disengagable from the retaining structures.

The invention discloses an Internet of vehicles system session key generation method. The method comprises that an Internet of vehicles platform receives key request information sent by a vehicular terminal, wherein the key request information at least comprises identifier information of the vehicular terminal; an original terminal key is generated according to the identifier information of the vehicular terminal; and a session key is generated through a root key and the original terminal key. According to the method provided by the invention, the session key is generated at the side of the Internet of vehicles platform and is not generated by the vehicular terminal; the security is relatively high; and the generation mode is simple and rapid. The invention also provides a vehicular terminal and ECU binding method, a method for preventing the vehicular terminal from being disassembled or replaced, the Internet of vehicles platform and the Internet of vehicles system. When the vehicular terminal is disassembled or replaced privately, key negotiation is failed, a full vehicle ECU issues an automatic vehicle locking instruction, and the vehicular terminal is prevented from being disassembled or replaced.

The invention relates to a skin renewal method. According to the skin renewal method, hair follicle stem cells are used as seed cells and silica gel dressing is used as a new cell transplantation carrier. The skin renewal method comprises the following steps: 1) cultivating and amplifying hair follicle stem cells; 2) cultivating dermal cells; 3) mixing the hair follicle stem cells cultivated and amplified in the step 1) and the dermal cells cultivated in the step 2); 4) dropwise adding mixed cells obtained in the step 3) into silica gel dressing for incubation; and 5) transplanting the cells and the silica gel dressing used in the step 4) to a part required to be subjected to skin renewal. The method provided by the invention not only can renew functional skin in the treatment of large-area skin injuries, but also can provide a simple validation method for the multipotency test on hair follicle stem cells in scientific research activities.

The invention discloses a non-excavation directional drilling construction method for a municipal pipeline. The non-excavation directional drilling construction method for the municipal pipeline is mainly suitable for carrying out laying construction when various pipelines cross rivers, roads, buildings and other obstacles and an open excavation manner cannot be applied; the laying pipe diameter is 50 to 600mm; and the laying distance is 50 to 200m. The construction process comprises the steps of preparing for construction; designing a trace; staking out in survey; constructing a working pit;positioning and debugging a directional drilling machine; preparing a slurry; drilling a guiding hole; chambering step by step; welding and reinforcing a pipeline, and pulling back the pipeline; constructing an inspection well; and backfilling a foundation pit. According to the construction method provided by the invention, without influencing the original physiognomy, road traffic, river running,and greening vegetation, the penetration problem caused by the existence of a complete building at the original design pipeline excavation section is quickly solved, so that the construction land isreduced, the construction period is shortened, the construction efficiency is improved, the personnel investment is reduced, the investment cost is saved, and the laying direction, the laying depth and the laying accuracy of the pipeline are improved.

The invention provides a monitoring model determination method and device. The method comprises the steps of creating a three-dimensional building model and an initialized monitoring model in a to-be-monitored building construction range, wherein the monitoring model comprises multiple sets of monitoring equipment and monitoring parameters of the monitoring equipment; simulating deployment of themonitoring equipment in the to-be-monitored building construction range based on the three-dimensional building model; determining a monitoring range of a single set of monitoring equipment accordingto the monitoring parameters of the monitoring equipment; determining a blind area range of the monitoring model in the to-be-monitored building construction range according to the monitoring range ofthe single set of monitoring equipment; determining whether the monitoring of the building construction area reaches an expected effect or not according to the blind area range; and if the expected effect is not achieved, adjusting at least one of the number of sets of monitoring equipment simulated and deployed in the monitoring model, the deployment positions of the monitoring equipment and themonitoring parameters of the single set of monitoring equipment.

The invention provides a lock cylinder structure for an intelligent door lock, the intelligent door lock and an antitheft door and belongs to the technical field of intelligent door locks. The lock cylinder structure comprises an outer handle assembly and an inner handle assembly and further comprises a linkage part and a separating-combining structure, wherein an information collecting module ismounted in the outer handle assembly and receives, collects and sends user information; the inner handler assembly comprises a first rotating part provided with a control module, and the control module is electrically connected with the information collecting module through a conducting wire; a shifting wheel is suitable for rotating relative to a lock box to achieve unlocking or locking; one endof the linkage part is connected with the outer handle assembly, and the other end of the linkage part is connected with the first rotating part; and the separating-combining structure is disposed between a linkage mechanism and the shifting wheel and is suitable for enabling the linkage mechanism to be in linkage with or be separated from the shifting wheel according to a control instruction. Bymeans of the lock cylinder structure provided by the invention, the conducting wire can be prevented from being twisted and cracked, and meanwhile the advantages of being high in forcible entry difficulty, long in service life, convenient in operation, high in adaptability and the like are achieved.

A closure combination of a closure plug for shipping containers and a tamper evident, closure overseal, the closure plug (6, 45) and the overseal (20, 52) having hidden, complimentary, interlocking, snap-fit features (17, 49, 23, 56, 24, 57) and a frangible portion (26, 53a), to permit removal of the overseal from the plug, that is visible when the closure plug and the overseal are interlocked; the interlocking, snap-fit features may be internal or external of the closure plug but are hidden by the overseal skirt (22, 54) and the overseal is destroyed on removal from the closure cap.

The invention discloses a voltage transformer for a GIS (Gas Insulated Switchgear). The voltage transformer for the GIS comprises a tank body and a GIS body; a basin type insulator is fixedly arranged on a tank body flange opening; the voltage transformer is connected with the GIS through a basin inlay which is arranged on the basin type insulator; an open-close device is arranged between the basin inlay and the GIS body; an insulated transmission rod is connected to the open-close device; combination and separation of the open-close device are achieved by operating the insulated transmission rod and accordingly disconnection or communication of the GIS and the voltage transformer are achieved. Opening the open-close device or not is achieved by operating the insulated transmission rod which is connected with the open-close device and the open-close device is connected with the GIS through the basin inlay, so that when the insulated transmission rod is operated to drive the open-close device to be opened, the voltage transformer is disconnected with the GIS; on the contrary, the voltage transformer is communicated with the GIS. According to the voltage transformer for the GIS, the open-close device is arranged inside the voltage transformer, so that the GIS is avoided being detached or assembled from the GIS when a pressure resistant test is performed after a predelivery test and field installation.

The invention relates to an engine air cylinder sealing performance test method and system. The method includes the following steps that: step A, an upper stopping point of an air cylinder to be tested of an electronic-controlled engine to be tested of an automobile to be tested is detected; step B, with the detected upper stopping point adopted as a critical point, time t1 during which a crankshaft rotates from an alpha-degree position before the detected upper stopping point to the detected upper stopping point and t2 during which the crankshaft rotates from the upper stopping point of the air cylinder to be tested of the electronic-controlled engine to be tested to a beta-degree position behind the upper stopping point of the air cylinder to be tested of the electronic-controlled engine to be tested are recorded; step C, angular velocity omega 1 and angular velocity omega 2 of the crankshaft at the time t1 and t2 are calculated respectively; and step D, the omega 1 is compared with preset benchmark angular velocity omega 01, and the omega 2 is compared with preset benchmark angular velocity omega 02, and whether air leakage occurs on the air cylinder to be tested of the electronic-controlled engine to be tested can be judged according to comparison results. The engine air cylinder sealing performance test method and system of the invention have the advantages of convenient testing and convenient use. With the engine air cylinder sealing performance test method and system adopted, disassembly of the engine on the automobile can be avoided, and rapid testing of the sealing performance of the air cylinder of the electronic controlled engine can be realized.

The invention discloses an open-cutting and undercutting combined metro station structure avoiding housing demolition and a construction method thereof. The structure is composed of an open-cutting area defined by a plurality of open-cutting fender posts and an undercutting area under a building. The open-cutting area is constructed firstly, and then the undercutting area is constructed. Before undercutting structure construction, a transverse advanced large pipe shed is set up in advance, and the pipe shed is supported by undercutting side poles and an open-cutting top plate constructed in advance. The undercutting side poles are constructed through longitudinal side pilot tunnels, and before pilot tunnel construction, pilot tunnel periphery deep hole grouting is performed for reinforcingfirstly. Soil excavation is performed and an undercutting top plate are poured under protection of a pre-supporting system of the large pipe shed, and after the top plate reaches the structural strength, side walls, middle plates, a bottom plate and other structures of the undercutting area are constructed in an inverted construction method. According to the open-cutting and undercutting combinedmetro station structure avoiding housing demolition and the construction method thereof, demolition can be avoided, the work schedule is guaranteed, the coordination difficulty is reduced, the work investment is lowered, an underground box frame system is kept unchanged, and no influence exists on building function and operating management.

The invention discloses a method for constructing a foundation slab embedded with concrete supports, which comprises the following steps of: digging to the bottommost support surface of soil body, binding support reinforcing steel bars, and embedding foundation slab joint bars; arranging an isolating layer between surrounding purlines and a building envelope; arranging a water stopping structure at a place, which is close to the building envelope, of the support; after binding of the support reinforcing steel bars is finished and pre-embedded parts are embedded, pouring the concretes; after the supports are maintained to the required strength, digging to the bottom of the soil body, pouring plain concretes as a cushion layer, building a bracket for the foundation slab reinforcing steel bars, binding the foundation slab reinforcing steel bars, and connecting a sleeve with the pre-embedded foundation slab reinforcing steel bars on the supports; and pouring foundation slab concretes so as to embed the concrete supports in the foundation slab. The method disclosed by the invention can effectively reduce the length of the end, which has no support cantilever, of the lower part of a retaining wall, thereby preventing demolishing and slag removal works of the bottommost support, facilitating deformation control of foundation pits as well as material saving, and accelerating construction speed of the foundation slab.

The invention discloses an assembled type unit framework installing method which is characterized by comprising the following four steps of: measuring, paying off and positioning; installing a seamless steel tube lifting piece; installing an assembled type unit framework; and installing an aluminum panel. According to the assembled type unit framework installing method, the assembled type unit framework is wholly lifted and installed, so that the welding working is greatly reduced, the on-site manufacturing time is saved, the efficiency in large-span high altitude suspended ceiling installation working is improved, and the difficulty in vertical transportation is greatly reduced; by adopting a reversed installation process, the whole installation process is rapider and more convenient, and the erection and the detachment of a scaffold are avoided, so that time is greatly saved for construction on the ground, the labor investment is reduced, the cost is saved, and significant economic benefits are achieved; and moreover, the structure is more solid, the influence from the load of an adjacent region is small, the overall stress is more uniform, and the structure is safer; and meanwhile by utilizing the method, aspects such as on-site civilized construction, security production, construction quality and the like are all well ensured.

The invention discloses a melting method of bonded iron on a hot-metal ladle and belongs to the technical field of converter steelmaking. A facility comprises an iron melting gun mechanism, a gun-body cooling-water-gas-oxygen metal hose, a gun-body cooling-water-gas-oxygen valve station, a fume trapping cover, a dust removing pipeline, a hot-metal ladle and a hot-metal ladle transporting truck, wherein the hot-metal ladle bonded with iron is lifted onto a hot-metal ladle transporting truck parked at an iron-melting waiting position by using a crane in a workshop; and then the hot-metal ladle transporting truck is driven to an iron-melting working position. Then, an iron-melting gun falls, the lifting trolley falls along a lifting slideway, the iron-melting gun falls into the fume trapping cover and is controlled and ignited by workers in an operation room; according to the iron bonding condition in the hot-metal ladle, the height of the iron-melting gun is adjusted, oxygen and gas of the iron-melting gun are closed after all the bonded iron in the hot-metal ladle is melted, and the hot-metal ladle is taken out of the fume trapping cover; and then the hot-metal ladle transporting truck is driven out, the crane lifts the hot-metal ladle to pour melted iron into a slag ladle, and then the hot-metal ladle is reused. The melting method disclosed by the invention has the advantages of short treatment period, low cost and clean operating environment.

Provided is an architectural energy-saving composite wall connecting bridge. The architectural energy-saving composite wall connecting bridge comprises a combined steel formwork, the left side of thecombined steel formwork is provided with an insulation board, a preformed hole is formed in the right side of the combined steel formwork, a through hole collinear with the central line of the preformed hole is formed in the left side of the insulation board through hot melting, a short screw coaxial with the through hole is arranged on the left portion of the through hole, the right end of the short screw is fixedly connected with the left end of a connecting rod coaxial with the short screw, and the right end of the connecting rod is fixedly connected with the left end of a long screw coaxial with the connecting rod. The helical directions of threads at the two ends of the long screw are opposite, and the helical direction of a thread of the short screw is opposite to that of the threadat the left end of the long screw. The bridge is simple in structure, convenient to use and operate and suitable for connection of the insulation boards and the combined steel formworks which are assembled respectively, the situation that the connecting bridge is missed to be placed on the insulation boards, the insulation boards which have been assembled need to be removed is avoided, clamping force to the insulation boards and clamping force to the combined steel formworks are formed separately, and therefore, backside or opposite offset between the insulation boards and combined steel formworks is avoided.

The invention provides a method for raising the urban water-logging prevention standard and controlling water pollution. According to the method, a deep layer tunnel system is arranged at least 30m deep under the ground in the direction of a main drainage line in a drainage basin, a plurality of connecting vertical shafts are distributed above a main tunnel, the lower ends of the connecting vertical shafts are communicated with the main tunnel, the upper ends of the connecting vertical shafts are connected with an urban shallow layer sewage intercepting pipeline, a drainage pumping station is arranged in the position close to the main tunnel and an urban downstream water channel and beside an urban sewage drainage water channel, the main tunnel and the urban sewage drainage water channel are communicated by an emptying pump unit through a pipeline, and the tunnel channel and the urban downstream water channel are communicated by a floodwater drainage pump unit through a pipeline. By the utilization of spatial and temporal distribution of rainfall, scheduling operation is performed on the deep layer tunnel system, so that the main tunnel serves as a floodwater flowing channel to raise the water-logging prevention standard of the drainage basin when rainfall is large and serves as a converging sewage storage pond to play a role in control over water pollution when rainfall is small. According to the method for raising the urban water-logging prevention standard and controlling water pollution, the main tunnel for drainage is built in underground deep layer space, house removal caused by construction of ground facilities is avoided, and investment is reduced.

Provided is a reinforcing and repairing method for a Dougong of a historic building. If the tenon of the Dougong is cracked, twisted or rotten, the cracked, twisted or rotten portion of the tenon can be removed firstly, then, a piece of dry hardwood is used for manufacturing the removed part according to the type and the size of the original tenon, the length of a newly-manufactured part should be larger than that of the original tenon by once to twice, dovetail joints are formed in the two ends of the hardwood so that the head of the Dougong can be connected with the hardwood through the dovetail joints, a groove is formed in the vertical face where the head of the Dougong is combined with the hardwood so that a silver ingot tenon can be embedded in the groove, the outer surface of the silver ingot tenon is made to be flush with the surface of the Dougong, the hardwood can be fixed to the head of the Dougong through the silver ingot tenon, and the bending resistance and the twisting resistance of the Dougong body can be improved. The joint of the Dougong body is made to be flat through caulking of putty, and then the surface of the Dougong is painted with wood oil.

The invention discloses am ecologicalized transformation method for a hard concrete channel and the biological hard concrete channel thereof. The method comprises the following construction steps: removing impurities of a slope of a hard concrete base layer, perforating anchoring holes and inserting anchoring nails; paving a layer of modified ecological soil and compacting the same, and scatteringgrass seeds; carrying out surveying and setting out, and piling to pave templates, paving plant concrete, removing the templates after maintenance, and pouring mixed slurry; after the mixed slurry isstabilized, paving a grating geonet gasket; and fixing the geonet gasket through the inserted anchoring nails, and maintaining the channel periodically. A soil layer, a plant concrete layer and a grating layer are successively and progressively protected by means of the plant concrete, the grating and the anchoring nails, so that the hard concrete channel is high in hydraulic impact resistance, high in plant rate and high in weather resistance and erosion resistibility. In-situ ecologicalized transformation is carried out by means of a damaged or an existing hard concrete channel, so that theresources are saved, removal of the hard concrete channel is avoided, and the method is economical.

The invention relates to an induction control method for a vehicle theftproof system, composed mainly of a magnetic wave induction module and a magnetic wave induction chip, where the magnetic wave induction module is arrange on the vehicle and embedded with the remote control system of the original vehicle, the magnetic wave induction chip is carried with the vehicle owner; as the magnetic wave induction chip approaches to the vehicle, the magnetic wave induction module transmits a signal into a theftproof host computer of the original to make the vehicle automatically relieve various originally set theftproof instructions; and as the vehicle owner is apart from the vehicle, the magnetic wave induction module sends the other signal into the theftproof host computer to make various theftproof systems of the vehicle automatically reset so as to avoid operating the remote controller by hand, thus assuring the theftproof safety and use convenience.

The invention relates to a shallow underground excavation urban underground integrated pipe gallery unsupported construction method and an integrated pipe gallery. The method comprises determining thenumber and the position of small guide holes for step-by-step excavation according to the number and the position of cabins designed in the pipe gallery; conducting preliminary bracing after each excavation footage of the small guide holes, arranging permanent vertical steel supports at the intersections of the excavation boundary and vertical middle partition walls, and connecting the upper andlower ends of the permanent vertical steel supports and grid steel frames or steel arch frames in the preliminary bracing of the small guide holes respectively; constructing secondary linings after the preliminary bracing of the small guide holes, supplementing the permanent vertical steel supports according to the design requirements, arranging a threaded steel mesh between the adjacent permanentvertical steel supports, connecting the threaded steel mesh with the corresponding permanent vertical steel supports, and utilizing the permanent vertical steel supports as the framework to cast themiddle partition wall concrete to form the reinforced concrete middle partition walls and further form the pipe gallery structure with the preliminary bracing and the secondary linings. According to the method, the structure strength of the middle partition walls is improved while removal of the steel supports is avoided.

The invention provides a tower anchor-dock anchor combined rapid construction method for a self-anchored suspension bridge. The method comprises the following steps: step 1, synchronously constructinga main girder and a bridge tower of a side span; 2, installing a tower-beam thrust connecting device to temporarily connect the main girder of the side span with the bridge tower; 3, erecting a maincable and hoisting 60% of the number of the middle-span main beam segments, so that the horizontal component force exerted by the main cable on the main beam of the side span is jointly borne by the bridge pylon; 4, installing a pier-beam thrust connection device according to the method of the step 2 to temporarily connect the main girder of the side span with the pier; 5, hoisting the remaining middle-span main girder segments according to the method of the step 3, so that the horizontal component force exerted by the main cable on the side-span main girder is jointly borne by the bridge tower and the pier; 5, sequentially remove that pier-beam thrust connecting device and the tower-beam thrust connecting device, and completing the system conversion; and 6, tensioning the boom, dismantling the support, and completing the construction.

The invention discloses a subsurface tunnel reverse shield receiving method. The subsurface tunnel reverse shield receiving method comprises the following steps that firstly, a subsurface tunnel is constructed in front of the preset receiving position of a shield; secondly, soil of the shield receiving section is reinforced; thirdly, after a shield tunneling machine tunnels to the shield receiving position, cover removing construction is conducted on the closed working face of the subsurface tunnel; fourthly, a section is excavated towards the shield receiving position along the subsurface tunnel, and excavating is conducted until a shield cutter disk is exposed out completely and part of a shield shell is exposed out; fifthly, end sealing is conducted on a tunnel face between an underground excavation primary support and the shield shell; sixthly, the interior of the subsurface tunnel is reinforced; seventhly, components, except the shield shell, of the shield tunneling machine are dismounted in the tunnel and conveyed out; eighthly, waterproof construction in the subsurface tunnel and waterproof construction in the shield shell are conducted, and then remaining secondary lining construction is conducted. The subsurface tunnel reverse shield receiving method solves the technical problems existing in disassembling, dismounting and conveying of the shield tunneling machine in a cave at the section without the condition of hoisting receiving.

A computer housing with a locking function comprises a housing body, a panel and a first locking mechanism. The housing body is provided with an opening. The panel is disposed on the housing. The first locking mechanism comprises a magnetic unit, a locking unit, a first elastic unit and a push unit. The magnetic unit is disposed on the housing near the opening. The locking unit is movably disposed on the panel and is provided with a fastening portion. The first elastic unit is disposed on the locking unit and the panel and applies an elastic force to the locking unit. The push unit is movably disposed on the panel. When the panel is closed relative to the housing, the panel covers the opening, the magnetic unit applies an attracting force to the locking unit so that the fastening portion fastens to the housing, and meanwhile, the attracting force is larger than the elastic force; when the panel is closed relative to the housing body and the push unit is pushed, the push unit pushes the locking unit so that the fastening portion leaves the housing body. The computer housing allows the panel to be mounted or demounted by one hand.

The invention discloses a girder-pier sequential construction method of a pier top segment of an auxiliary pier of a cable stayed bridge, and relates to the field of bridge construction. The girder-pier sequential construction method is characterized in that the construction of the pier body of the auxiliary pier is performed twice, and when the pier body of the auxiliary pier is constructed for the first time, a definite height is reserved at the pier top, so that a front fulcrum pull rope cradle can run through the reserved height, after the construction of a main girder of the pier top segment of the auxiliary pier is completed through a cast-in-situ bracket, the cast-in-situ bracket is dismantled, the cradle runs through the auxiliary pier, and during the construction of the part from the pier body of the auxiliary pier to the pier top for the second time, a pedestal is mounted. According to the girder-pier sequential construction method disclosed by the invention, the front segment main girder and the rear segment main girder of the auxiliary pier share one front fulcrum pull rope cradle for construction, human resources and machinery for the dismantlement and the secondary assembly of the front fulcrum pull rope cradle, or human resources and machinery for construction by a bracket construction method are avoided, operation procedures are simplified, the construction period is shortened, and the cost is reduced.

The invention relates to the field of subway design and construction, and provides a close-fitting open and underground excavation combined subway station structure and a construction method thereof.The close-fitting type open and underground excavation combined subway station structure and the construction method thereof aim to solve the problems of subway station land occupation, demolition, underground excavation scale control, construction difficulty control, risk control and the like. The construction method of the close-fitting open and underground excavation combined subway station comprises the following steps that an open and underground excavation ranges and boundaries are determined; the open excavation part is provided with fender posts; an underground excavation transverse pipe shed is constructed; excavating is carried out to a base of the open excavation part, an anti-pulling structure, a waterproof system and an open excavation main body are constructed, a steel bar connector is reserved at a connecting opening between open excavation and underground excavation, and backfilling and earthing are carried out; an advanced small pipe is constructed; the open excavationfender posts at the transverse boundary between open excavation and underground excavation are removed, and an underground excavation part is constructed longitudinally in pilot tunnels according toa bench cut method; an underground excavation secondary lining is constructed; and the open excavation fender posts and underground excavation primary supports at the longitudinal boundary between open excavation and underground excavation are removed in sections, and connecting structures and waterproof systems of a top plate and a bottom plate at the connecting opening between open excavation and underground excavation are constructed. The close-fitting type open and underground excavation combined subway station structure and the construction method thereof have the beneficial effects thatdemolition is avoided, risks and investment are controlled, the project progress is guaranteed and the coordination difficulty is reduced.

The invention discloses a power transmission and transformation engineering project electromagnetic environment prediction method based on automatic recognition of an environment sensitive target. The method includes: reading geographic information corresponding to a power transmission and transformation project, determining the shape of a generated buffering area according to a given spatial entity, and utilizing a vector algorithm and a stacking method to determine an environment sensitive area; utilizing an image method to calculate equivalent charge on a power transmission line so as to calculate an electric field generated by the equivalent charge, utilizing an equivalent charge method to calculate intensity of a high-voltage power transmission line spatial working frequency electric field, and predicting a working frequency electric field of the determined environment sensitive area; according to quasi-static characteristics of electromagnetic performance under working frequency condition, applying an ampere's law to stack calculation results by vector, and calculating to acquire magnetic field strength around a lead and a prediction value of a working frequency magnetic field of the environment sensitive area. By the method, when the environment sensitive area of the power transmission and transmission project is modified or removed, electromagnetic environment parameters that the environment sensitive area of the power transmission and transformation project is about to face can be predicted for corresponding rectification to avoid disputes.

The invention discloses a smart band provided with a GPS (global position system) positioning device and relates to wearable smart devices. The smart band provided with the GPS positioning device comprises a main band body, wherein the main band body is cuboid, the left side and the right side of the main band body are connected with a left wristband and a right wristband respectively, and the left wristband and the right wristband are connected with the main band body in a hinged manner; the right wristband comprises a front watch strap and a rear water strap which are connected in a hinged manner; a USB flash disk is inlaid in one end of the rear watch strap, and a plug of the USB flash disk extends out of the rear watch strap; a groove matched with the USB flash disk is formed in one end, far from the main band body, of the left wristband; a circuit board is arranged in the main band body, a processor module and a GPS positioning module which is connected with the processor module and used for positioning the current position of a wearer are arranged on the circuit board, and a clock display module and a compass display module are arranged on a display screen. The smart band provided with the GPS positioning device has the advantages of simple structure and high practicability.

The invention relates to storage fresh-keeping equipment for fruits, vegetables and other agricultural products, and in particular relates to a storage fresh-keeping storehouse with humidification and controlled atmosphere functions. The storage fresh-keeping storehouse comprises a box type storehouse body with detachable wheels, wherein the box type storehouse body is divided into an equipment box and a sealing storage box with a door, and an air cooler, a nitrogen making machine and a humidifier which are connected with the sealing storage box are arranged in the equipment box; and the inner wall of the sealing storage box comprises an inner steel framework, an outer galvanized sheet and a polyurethane layer which is filled in the outer galvanized sheet, a temperature and humidity sensor and a controller which is electrically connected with the temperature and humidity sensor, the air cooler, the nitrogen making machine and the humidifier are arranged in the sealing storage box. By adopting the movable physical fresh-keeping storehouse provided by the technical scheme of the invention, industrial production and automatic control can be realized, and the movable physical fresh-keeping storehouse is low in cost, and can be used in ocean-going vessels and other places which are far away from the land.