104results about How to "Expand the scope of influence" patented technology

The present invention relates to a method for wholly exerting pre-stress to the trussed internal bearing in the deep foundation pitch. The method comprises the following steps: installing an internal bearing which is composed of a principal top brace, a diagonal rod and a web rod or composed of a principal top brace and a web rod, and installing the trussed internal bearing between two pit walls of the deep foundation pitches; (2) installing a pre-stress force-transferring seat along the axial direction of the principal top brace on each principal top brace; (3) arranging a jack along the axial direction between two pre-stress force-transferring seats of each principal top brace; and (4) cutting off the principal top brace between two force-transferring seats of each principal top brace, exerting pre-stress with the jack, and when the pre-stress which should be exerted is obtained, reinforcing and welding the gap which is between the fracture surface of the cut principal top brace and is generated by exerting pre-stress with the steel material. The method has the advantages of quick installation, short time period for exerting pre-stress, being able to counteracting the compressing deformation of the member bar, and being able to quickly and effectively control the deformation in the deep foundation pitch.

The invention provides a high-gas-content coal seam punching cutting pressing and sucking integral pressure relief and antireflection gas extraction method. According to the method, firstly, a floor crossing hole is constructed in a coal seam; then, drill retreating is carried out; a special drill pipe and a special drill bit for hydraulic punching are replaced in a drill hole; high-pressure water of 5 to 35MPa is introduced into the drill pipe; the drill bit is rotated and is moved to and fro, and hydraulic punching is implemented on the coal seam; and punching holes with the diameter of 0.3 to 1m are formed around the drill hole. During the drill retreating, the drill bit is moved to a coal seam section with little punching coal yield; the drill bit rotates in situ; the coal seam is cut through the high-pressure water; and flat seam cutting seam grooves are formed. The special drill pipe and the special drill bit for the hydraulic punching retreat; special hydraulic fracturing equipment is connected; and the drill hole is subjected to hydraulic fracturing according to a conventional method; and after the fracturing, the drill hole is sealed according to a conventional method, and gas extraction is carried out. The method provided by the invention breaks through the limitation of a single hydraulic measure, and realizes the integral and uniform pressure relief through punching, seam cutting, fracturing and extraction integral operation, so that the single-hole pressure relief range is improved by more than 50 percent; the single-hole gas pure flow rate is improved by more than 40 percent; the single-hole gas extraction rate is improved by more than 30 percent; and obvious economic benefits and wide application prospects are realized.

Disclosed is a coal bed gas well pulse radial drilling and double-pulsating hydrofracturing method and a whole construction scheme. Equipment matched with the method includes a continuous coiled tubing unit, a high pressure pump, a pulsating pump set, a guider, a pulse generator and a porous nozzle. In a coal bed gas well, the pulse generator and the porous nozzle are utilized to generate high-pressure pulse jets to drive a high-pressure hose to quickly drill into a coal bed to form a radial hole of certain length; a ball is cast into a coiled tubing for maintaining pressure, and a pin is cut off to separate the porous nozzle; the high pressure pump and the pulsating pump set are utilized to pump fracturing fluid in at the same time from the coiled tubing and an oil jacket annulus, the pulse generator generates high-frequency low-amplitude pressure fluctuation, the pulsating pump set generates low-frequency high-amplitude pressure fluctuation, double-pulsating fracturing construction with low-frequency hammering and high-frequency oscillating effects is formed to impact and damage the coal bed, size fracturing is realized finally, and the objectives of substantially improving permeability of the coal bed and increasing yield of a single coal bed gas well are achieved.

The invention discloses a coal mine underground coal seam long drill hole staged fracturing permeability increase and gas extraction method. The coal mine underground coal seam long drill hole stagedfracturing permeability increase and gas extraction method comprises the steps that a long drill hole with the length more than 100m are drilled into a coal seam using a underground tunnel drilling machine for a coal mine or a kilometer drilling machine; a rigid casing with an one-way valve is lowered into to protect the hole directly using the underground tunnel drilling machine or the kilometerdrilling machine, and casing centralizers are installed at regular intervals; after the casing is lowered, preset volumetric cement paste is injected into an annular space between the outer wall of the casing and a drill hole wall to carry out blocking and sealing; a rigid fracturing pipe with two or multiple packers is lowered into the casing to carry out coal seam staged fracturing step by stepor multistage staged fracturing; and the fracturing pipe and the packers are removed after staged fracturing permeability increase, the casing of coal seam long drill hole opening is accessed with a gas extraction pipeline after drainage finishes to carry out efficient extraction of gas. The engineering amount of a tunnel and hole-drilling can be greatly reduced, the coal seam gas extraction efficiency is improved, and the coal mine underground gas treatment cost is reduced.

The present invention discloses a tight sandstone reservoir modeling method. The tight sandstone reservoir modeling method comprises the steps of: taking drilling and logging information as constraints to perform lithology inversion based on post-stack three-dimensional seismic interpretation data to obtain a plurality of inversion data volumes; comparing the inversion data volumes with a logginginterpretation conclusion to optimize an inversion data volume which can most reflect different lithologies; determining a lithology partition criterion according to the dependency of lithology data interpreted from the logging and the values in the optimized inversion data volumes; obtaining a three-dimensional logging lithology data volumes through lithology identification of the values of the inversion data volumes in each three-dimensional grid in the three-dimensional space based on the lithology partition criterion; setting virtual wells at the main body centers of sedimentary facies andthe internal portion of each boundary, and determining the values in the three-dimensional lithology data volumes corresponding to the virtual wells as the lithology data of the virtual wells; and taking the lithology data of the actual drilling wells and the virtual wells as modeling basic data to perform random simulation modeling to obtain a three-dimensional reservoir lithology model so as toachieve the purpose of fine description of the reservoir.

The invention relates to a long-wall structure concrete curing device and a curing method thereof. The curing device comprises a moisturizing device, a heat-preservation device and a temperature measurement device, wherein the moisturizing device comprises a spraying pipe, and the spraying pipe is fixed through a split bolt of a formwork at the top of a wall; the heat-preservation device comprises a plastic film and a heat-preservation material, the spraying pipe and the wall are wrapped with the plastic film, and the plastic film is wrapped with the heat-preservation material; the temperature measurement device comprises a center temperature measurement point and a surface temperature measurement point, the center temperature measurement point and the surface temperature measurement point are buried at the same elevation of the wall, and the center temperature measurement point and the surface temperature measurement point are connected with a numerical control temperature measurement instrument through a temperature measurement line. According to the curing device and the curing method, the outside of the surface of a long-wall concrete structure is provided with the moisturizing device capable of spraying fine water mist slowly and wrapped with the heat-preservatoin device composing of the plastic film and the heat-preservation material, the difference of temperatures inside and outside concrete is controlled, temperature stress in the concrete is reduced, temperature cracks of the concrete are reduced, and the problem of how to control the cracks in long-wall structure construction in the environment with a dry climate and a large temperature difference is solved.

The present invention relates to a stratified time-after-time electroosmotic precipitation combined vacuum precipitation method for treating large-area soft ground base. It is characterized by that on the large-area soft ground base a stratified time-after-time electroosmotic precipitation combined vacuum precipitation method is adopted, the described stratified precipitation is characterized by that in the deep layer an electroosmotic well-point pipe electroosmotic precipitation is adopted, and in the shallow layer a vacuum well-point pipe evacuation precipitation is adopted; the described time-after-time precipitation is characterized by that in the area where the deep-layer electroosmotic well-point pipe precipitation is adopted in last-time precipitation construction the above-mentioned shallow-layer vacuum well-point pipe precipitation is adopted in the next-time precipitation construction; and in the area where the shallow-layer vacuum well-point pipe precipitation is adopted in last-time precipitation construction the above-mentioned deep-layer electroosmotic well-point pipe precipitation is adopted in the next-time precipitation construction.

The invention relates to the technical field of drainage of low-permeability geotechnical engineering, in particular to a permeation increase siphon drainage system for a low-permeability soil slope. The permeation increase siphon drainage system is especially suitable for engineering drainage of low-permeability-coefficient water-rich strata. The permeation increase siphon drainage system is composed of a water-permeable concrete fracturing injection system and a siphon drainage system body. For the loess slope with low permeability and collapsibility, water-permeable concrete is pressed into the loess slope with low permeability, a high-permeability network channel is formed, and the range of influence that a cone of depression is generated by a single siphon drainage hole is widened. By means of a high-permeability water-permeable network, the drainage efficiency is increased; based on the high-lift siphon principle, redundant underground water in the slope is automatically and efficiently drained in real time, the underground water level of the slope can be controlled to be blow the safety water level, and no external power is needed; and the beneficial effects of being low in manufacturing cost and high in efficiency are achieved.

The invention discloses a filtering method for intra-frame and inter-frame prediction. For pixel values obtained after prediction, whether to filter prediction blocks or not is adaptively selected through RDO (Rate distortion optimization) decision; filters are established based on a generalized Gaussian distribution function; different filters are employed for the prediction blocks of different sizes; the prediction blocks of various sizes are trained to obtain filter parameters. At a coding end, RDO is carried out on each coding unit; intra-frame prediction or inter-frame prediction is carried out on each coding unit; the prediction blocks are filtered through utilization of the filtering method provided by the invention; and whether to employ prediction block filtering or not is determined through RDO decision. At a decoding end, for different prediction block sizes, different filtering coefficients are set; and decoding is carried out according to marks. The distortion problem of the prediction blocks is solved. The prediction precision is improved. The coding efficiency of intra-frame and inter-frame prediction blocks is improved.

The invention discloses a retaining wall reinforcement material produced by waste tires, which is as follows specifically: taking an annular rubber ring or a rubber strip formed by cutting the waste tire along the radial direction as a basic member, and mutually connecting a plurality of basic members for preparing the retaining wall reinforcement material with a net-like or a strip-shaped structure. The retaining wall reinforcement material is produced by the annular rubber rings formed by cutting the waste tires, thereby not only digesting the continuously growing waste tires, but also making full use of the difficult degradation property of waste tire materials, further leading the produced reinforcement material to have sufficient service life and truly achieving the effective utilization of wastes. The reinforcement material has the advantages that the reinforcement material can form an embedding structure with a soil body, increase the affected range of the soil body in the thickness direction and further reduce the number of set layers of the reinforcement material; the structure is simple and the production and the laying are convenient; and a three-dimensional structure which is convex at top and concave at bottom is naturally formed, thereby increasing the affected area of the soil body in the thickness direction, or automatically producing the pressure on the surrounding soil body and improving the bonding force with the soil body.

The present invention provides a vehicle putting new media closed-loop advertisement platform. The platform comprises a server, a device terminal and a client. The server comprises a background advertisement putting control module; the device terminal includes an advertisement data receiving module, a projection module and a Bluetooth information module; and the client includes a Bluetooth identification module, an analysis module, an information interaction module and a Bluetooth data receiving module. The vehicle putting platform convert a traditional vehicle outdoor advertisement to a new media interactive platform, and can perform interaction with the audiences except the advertisement display, and the information influence range can be enlarged through the audience information sharing to allow the vehicle body advertisement to form a closed loop.

The invention discloses a super large diameter, hollow, independent and composite pile foundation and a construction method thereof. The composite pile foundation comprises a super large diameter thin wall reinforced concrete hollow pile, cement mixing piles, a pile end reinforced concrete thick plate and a pile surrounding grouted soil body, wherein the cement mixing piles surround the pile foundation to form a closed cement mixing pile wall; the super large diameter thin wall reinforced concrete hollow pile is made through section cast-in-place at the pile site or sectional splicing after prefabricating, and after the hollow pile body sinks to a designed position, the bottom end is sealed by concrete so as to form the hollow pile; after the formation of the hollow pile, high pressure jet grouting of cement grout is carried out at the part between the super large diameter thin wall reinforced concrete hollow pile and the cement mixing piles; and the pressure-injection of cement grout is further carried out at the bottom and the surrounding soil body of the hollow pile for reinforcement through pile bottom grouting pipes, horizontal grouting holes and vertical grouting holes, so as to form the composite pile foundation. According to the super large diameter, hollow, independent and composite pile foundation and the construction method thereof, a higher bearing capacity is achieved, the advantages of good pile quality and high safety are achieved, and meanwhile a better economic performance is achieved.

The invention provides a bedding long drilling hole seam cutting and hole washing integral coal bed gas extraction method, which belongs to the technical field of improved coal rock body permeable coal bed gas extraction method and aims at solving the technical problem to provide the bedding long drilling hole seam cutting and hole washing integral coal bed gas extraction method with the advantages that the bedding long drilling hole well wall stress is scattered, the influence range is wide, and the extraction efficiency is high. The method adopts the technical scheme that a, a bedding long drilling hole is drilled in a coal bed for coal bed gas extraction; b, drill withdrawal is carried out, high-pressure water is introduced, a drill rotates in situ, and a large vertical crack is formed on the plane vertical to the axial line of the bedding long drilling hole; c, the drill withdrawal is continuously carried out, the water pressure is reduced, the hole wall of the bedding long drilling hole is flushed, the drill is stopped after going back for a distance, and a new large vertical crack is constructed by a method in the step b; d, the step c is repeated so that a plurality of large vertical cracks are formed on the bedding long drilling hole; e, the drill is withdrawn, and the hole sealing is carried out on the bedding long drilling hole; and f, coal bed gas is extracted. The method provided by the invention has the advantages that the extraction efficiency is high, and the method is suitable for underground extraction.

The invention discloses a two-stage inspiration-based social network influence maximization problem solving method, and belongs to the field of social network analysis. The method comprises the following processing procedure of: dividing the whole process of an influence maximization algorithm into two stages by utilizing accumulation characteristics of a liner threshold value model: (1) a degree discounting inspiration stage: selecting a seed node with the maximum degree by using a degree discounting strategy, carrying out node activation in the whole network by utilizing the seed node and accumulating the influence of the nodes; and (2) an influence inspiration stage: selecting a node with the maximum influence as a target node and carrying out node activation by utilizing the target node. In order to improve the solution speed of the algorithm, a calculation method for approximately evaluating the node influence is designed at the influence inspiration stage. The method disclosed by the invention can be used for effectively and rapidly mining the initial seed nodes in social networks and effectively solving the influence maximization problem in the social networks, and can be applied to the field of marketing, public opinion monitoring and advertising.

The utility model discloses an aerial drift projection device, wherein, a projector and a screen are arranged in the aerial drift device. The projector is positioned in a housing; one end of the housing is sealed and fixed at the inner wall of the aerial drift device, and the other end is sealed with the wall of the aerial drift device through the inner wall. The projector is fixedly positioned at the housing; a viewing mirror is positioned at a lens hole; the viewing mirror and the lens hole are sealed between each other; the screen is fixedly positioned at the aerial drift device. The relative position between the wall of the aerial drift device and the screen is made of transparent materials; a conductor hole and a heat sink are positioned at the end of the housing through the outer wall of an aerial drift display screen. A display screen is positioned at the aerial drift device, and the content of advertisement can be switched under the control of the microcomputer. Drifting in the air without the constrains of the location and the time, the visual field is broad, with wide range of infection, and then a plurality of advertisements can be broadcasted in a sustained period, saving advertising resources and cost.

The invention discloses an anti-frost heaving and anti-seismic composite foundation structure. The anti-frost heaving and anti-seismic composite foundation structure includes a plurality of rigid captype piles, a coarse sand cushion layer, a rubber pebble stiffened cushion layer, a rubber quake isolation cushion layer and a raft plate, the multiple rigidity cap type piles are evenly arranged in foundation soil, the coarse sand cushion layer is positioned on the foundation soil, the rubber pebble stiffened cushion layer is located on the coarse layer, the rubber quake isolation cushion layer is located on the rubber pebble stiffened cushion layer, the raft plate is located on the rubber quake isolation cushion layer, a blocking plate is placed on the periphery of the coarse sand cushion layer, the rubber pebble stiffened cushion layer, and the rubber quake isolation cushion layer, a building is built on the raft plate. The foundation structure can effectively prevent the foundation frost heave and the earthquake damage deformation and fracture under earthquake in a cold area, improve the mechanics performance of the foundation structure; effectively lower or avoid the enormous economic loss caused by the earthquake and the freezing damage.

The invention provides a method for testing the stability of the pit bottom of a foundation pit with a confined water stratum. The method for testing the stability of the pit bottom of the foundation pit with the confined water stratum comprises the following steps that (1) the shape and size of an enclosure plate are determined; (2) the depth and thickness of the foundation pit are determined; (3) soil layers are laid layer by layer, and the enclosure plate is buried; (4) a monitoring network is partitioned; (5) a data acquisition system is mounted; (6) water is added through a water inlet, so that the water level is made higher than the position of an inverse filtering plate; (7) the tested maximum water pressure value is determined according to the water pressure of an actual pressure bearing layer; (8) the air pressure loading level is determined; (9) the air pressure is loaded; (10) data are measured and recorded by the data acquisition system; (11) the air pressure on another level is adjusted, and data are measured and recorded; (12) loading is stopped when seepage destruction starts to occur on the bottom surface of the pit; and (13) a relational graph between the water pressure and deformation of the pit bottom is drawn. According to the method for testing the stability of the pit bottom of the foundation pit with the confined water stratum, the effect is good, operation is convenient, the construction period is short, and the cost is low.

The invention discloses a HUT type reef body for constructing an artificial reef hill.The HUT type reef body is suitable for deployment in torrent or deep sea areas and is made with reinforced concrete material, including an outer cubic semi-closed frame structure and an inner dolos structure joined together, the inner dolos structure is used as a main bearing structure during stacking, the reel body outer frame is provided with protruding tenons and bar structures to allow insertion and anchorage between single reefs; the stacked integration formed herein has complex interior structure, the single reefs are tightly meshed, empty space formed is huge, and stacking efficiency is high; the design of the semi-sealed frame structure enables stacks of different empty space quantities and heights to be formed according to deployment amounts, sea ecological environment is stereoscopically improved, fishery resources are protected, a good habitat is provided for marine organisms by gathering fishes, stacking efficiency of single artificial reefs is high, and one stack formed herein has high empty space quantity and complex structure.

The invention discloses a karst tunnel drainage type drainage system. The system comprises drill holes, a drainage network, drainage pipes and a tunnel drainage ditch, wherein the drill holes are downtilt drill holes, the drill holes are the downtilt drill holes formed through drilling from a tunnel arch wall into a karst development area, the drainage network is located at a soil body or rock mass near the bottom ends of the drill holes, at least part of the drainage network is located in the karst development area, the drainage network comprises a plurality of cracks, water permeable concrete fills the cracks, all the cracks communicate with one another, the drainage pipes are laid in the drill holes, water inlets of the drainage pipes communicate with the drainage network, water outletsof the drainage pipes communicate with the tunnel drainage ditch, the elevations of the water inlets of the drainage pipes are lower than the elevations of the water outlets of the drainage pipes, and the elevations of the top ends of the drill holes are higher than the elevations of the water outlets of the drainage pipes. According to the karst tunnel drainage type drainage system, the siphoniceffect is utilized, so long as underground water is converged, redundant underground water in the tunnel surrounding rock can be automatically and efficiently discharged out in real time, no externalpower is needed, and manual maintenance is not needed.

The invention relates to a vibrating subsoiler, and belongs to agricultural machines. A curved surface ploughshare body is installed at the front end of a subsoiler body through a front pin shaft and a ploughshare body pressure spring, hanging lugs are fixedly installed on the rear side portion of the subsoiler body, a vertical shaft is fixedly installed on the hanging lugs, the vertical shaft is sleeved with a shaft sleeve in a matched mode, the shaft sleeve can axially move on the vertical shaft, and the vertical shaft is sleeved with a gasket and a main pressure spring; base plates are fixedly arranged on the portions, located at the left side and the right side of the subsoiler body, of the shaft sleeve respectively, a wing plate is hinged to each base plate through a side pin shaft, a U-type base is fixedly installed on each wing plate, the bottom end of a threaded pin shaft sleeved with an adjusting nut and an auxiliary pressure spring is hinged to each U-type base, and the upper portion of each threaded pin shaft is axially movably inserted into the corresponding base plate. The soil hacking capacity of the vibrating subsoiler during subsoiling operation is substantially improved, faults that the subsoiler body is blocked and wound by weed and the like are reduced, and the range of influence on soil by the subsoiling operation is expanded; the vibrating subsoiler is reasonable in structure, high in operation quality and efficiency, convenient to adjust and wide in application range and has few faults.

The invention relates to a composite type artificial fish reef which comprises a square frame reef, tire-shaped concrete components and a bait culture medium. The square frame reef is arranged in a hollow mode, the incident flow face and the reverse flow face of the square frame reef are symmetrically provided with circular open holes respectively, the tire-shaped concrete components are symmetrically arranged at the upper portion of the square frame reef, meanwhile, the multiple tire-shaped components and the bait culture medium are symmetrically arranged on the two side wall faces of the square frame reef, and shells are arranged in the bait culture medium. Obviously, while the composite type artificial fish reef solves the problem of tire reef pollution, the advantages of the tire reef are reserved, the formed flow field effect is good, larger upward flow and back eddy flow are formed, the reef influence range is enlarged, the better survival environment is provided for advanced fries and juvenile fish, the juvenile fish survival rate can be greatly increased, fishery culture and proliferation and aquatic organism diversity protection are facilitated, and the better application prospect is achieved.

The invention relates to a stability test device for a foundation pit bottom containing a confined water layer. The device comprises a model box, an enclosure plate and a pressurization system, wherein the enclosure plate is located in the model box; a pressurization cabin surrounds the model box; a test soil body is paved in the model box; the lower part of the enclosure plate is located in the test soil body; a surface layer of the test soil body in the enclosure plate is a monitoring layer; a data acquisition system is arranged on the monitoring layer; in the pressurization system, the pressurization cabin surrounds the model box; a water inlet pipe and an air valve are arranged on the upper part of the pressurization cabin; a water outlet is formed in the lower part of the pressurization cabin; the water inlet pipe is sealed by a sealing nut; the air valve is connected with an air pump; an inverse filtering plate for enabling water to permeate into the model box and preventing the test soil body from entering the pressurization cabin is arranged on the lower part of the model box; a water level of the pressurization cabin is higher than the top part of the inverse filtering plate; the lower part of the enclosure plate is higher than the top part of the inverse filtering plate. The invention provides the stability test device for the foundation pit bottom containing the confined water layer, which has the advantages of good effect, convenience in operation, short construction time and low cost.

The invention discloses a wind-storage system coordination control strategy for reducing abandoned wind of multiple wind farms by aid of positive externality of stored energy. The wind-storage system coordination control strategy is characterized by comprising contents of determining distribution principles for power distribution rations of the wind farms in joint external transmission environments with the multiple wind farms; analyzing externality theories of energy storage systems; reducing the abandoned wind of the multiple wind farms by the aid of the positive externality of the stored energy, and the like. The wind-storage system coordination control strategy has the advantages that the positive externality generated by available power and the capacity of the stored energy is sufficiently utilized, relief of the abandoned wind of the local wind farms can be guaranteed, the abandoned wind of the other wind farms can be reduced to the greatest extent, accordingly, the utilization rate of the stored energy can be increased, effects for relieving the abandoned wind by the aid of the stored energy can be optimized, the wind-storage system coordination control strategy is scientific and reasonable and is high in applicability, excellent effects can be realized by the wind-storage system coordination control strategy, and the like.

The invention relates to a shaft coal uncovering method via a radial technology, and belongs to the field of coalbed gas exploitation. A radio hole is constructed towards the shaft by well drilling inthe ground, directed fracturing is carried out by using a guiding effect of the radial hole, the extension range of a fractured crack is expanded to the largest degree, and the permeability of a coalbed surrounding the shaft is improved. In the construction process, the ground vertical hole is constructed within the range of 100m in the surrounding of the shaft, and the radial well is constructedtowards the shaft along the radial direction. Radial branches are constructed towards the shaft by using the existing ground hole, the fracturing technology is then combined, and the influential range of the fracturing crack is widened by using the guiding effect of the radial branches. The well is constructed, the radial well technology is efficiently combined with the fracturing technology andused for rapid coal uncovering in the shaft, the engineering amount of down-hole drilling is reduced, the coal mine gas extraction speed is improved greatly, coal uncovering time of the mine is shortened, the risk of danger is reduced, and rapid and safe coal uncovering is ensured.

The invention discloses a thick coal seam top and bottom linkage horizontal well subsection seam making, coal washing and outburst eliminating method. The method comprises the steps that an L-shaped top horizontal well and an L-shaped bottom horizontal well are arranged, hydraulic seam making is conducted through a directional hydraulic perforation tool dragged by an oil pipe with a bottom seal, circulating pulse well washing and coal drawing are conducted on connected cracks, and after seam making and coal washing work of the whole well section is completed section by section, water drainageand pressure reduction gas production are conducted in different wells. Therefore, the outburst elimination construction difficulty and the construction workload of the thick coal seam can be reduced,the outburst elimination standard reaching time is shortened, the comprehensive treatment cost is reduced, and the purposes of rapid and large-range striped pressure relief and outburst elimination of the thick coal seam are achieved.

The invention relates to a method utilizing a slow-adhesion prestress concrete beam to prevent sedimentation and cracking of a large-area terrace in soft soil-layer areas, which is characterized by comprising the following steps: 1) arranging a compacted belt-shaped plain soil belt on a soft soil layer below a designed reinforced concrete terrace; 2) arranging belt-shaped geotextile or belt-shaped geogrid; 3) arranging a belt-shaped broken-stone cushion layer or a belt-shaped sandstone cushion layer or a belt-shaped cement stabilizing sand layer; 4) arranging a belt-shaped plain concrete cushion layer; 5) arranging a fixing support of a slow-adhesion prestress steel strand on the belt-shaped plain concrete cushion layer according to the arranging mode of the slow-adhesion prestress steel strand in a wave-shaped trend, and fixing the slow-adhesion prestress steel strand on the fixing support; 6) pouring concrete of the slow-adhesion prestress concrete beam and then pouring concrete of the reinforced concrete terrace; and 7) tensioning the slow-adhesion prestress steel strand when the poured reinforced concrete terrace and the slow-adhesion prestress concrete beam achieve 75% of their design strength. The method is simple and practical and can prevent sedimentation and cracking of the large-area terrace.

The invention provides a track determination method, a device and a system based on a blockchain, and electronic equipment, which can be used in the block chain field, the financial field and the like, and the method comprises the following steps: receiving a track acquisition request from a client, the track acquisition request comprising a user identifier and a query condition, the query condition comprises at least one of a time range and a regional range; in response to the track acquisition request, respectively acquiring sub-track information sets matched with the user identifier and the query condition from at least two block chain networks, each piece of sub-track information in the sub-track information sets having a track information identifier including time information; combining and sorting the sub-track information in the one or more sub-track information sets based on the time information to obtain a track information set; and sending the associated information of the track information set to the client, so that the client displays the associated information of the track information set.

The invention discloses an influence maximizing method based on cost benefit. The method comprises steps of: for the processed Sina weibo network and a fixed budget, modeling the cost of nodes on the basis of analyzing a network topology model and information propagation characteristics and giving a node cost computing method; modeling the influence of the nodes on the basis of a signal propagation model, and providing a node probability cover model; designing an inertia node selection algorithm, acquiring the marginal income of a node probability cover range according to the node probability cover model and a node marginal income computing method, using a specific value of the marginal income of a node probability cover range to the node cost as a selection standard, selecting a subnode set, performing experiments on a fixed-probability independent cascade model and a variable-probability independent cascade model to obtain the final influence range of a seed node.

The invention discloses a soft soil foundation treatment method combining local vacuum and high-pressure aerosol disturbance. The soft soil foundation treatment method comprises the following steps: dividing a soft soil foundation treatment field into a vacuum area and an air filling area which are in a strip shape, carrying out the vacuum pre-pressing operation in the vacuum area, carrying out the high-pressure aerosol disturbance operation in the air filling area, adding a transverse drainage passage in a soil body, discharging the water in the soft soil foundation via a vacuum period sand cushion layer by virtue of the transverse drainage passage and a vertical drainage passage under the vacuum negative pressure, wherein the vacuum negative pressure can greatly increase an injection radius and influencing range of the high-pressure aerosol of the air filling area, so that while the drainage efficiency is improved, the power consumption is reduced, and the working period is shortened.

The invention relates to a multifunctional security patrol robot in a residential district. The multifunctional security patrol robot comprises an equipment main body and universal rolling wheels arranged at the lower end of the equipment main body. A controller, a locating assembly, a storage battery and a driving motor are arranged in the equipment main body. A camera assembly is arranged on the outer surface of the equipment main body and connected with the controller. A notice display screen is further arranged on the outer surface of the equipment main body. The notice display screen, the locating assembly, the storage battery and the driving motor are all connected with the controller. With the adoption of the multifunctional security patrol robot, repeated security patrol work is achieved, the driving motor of the robot drives the universal rolling wheels to rotate, and thus directional movement according to a set route is achieved. A camera is arranged on the robot, video shooting in the patrol process can be achieved, and a shot video can be sent to a monitoring center through a data transceiver circuit and can also be stored in a memory. After patrol is finished, the video is taken down to be watched uniformly very conveniently, manpower and material resources are saved, and all resources are used effectively.