1196results about "Drainage" patented technology

The invention discloses tunnel deeply-buried ditch construction equipment and method.The method comprises the following steps that S1, a self-propelled inverted arch trestle is moved to a construction section, a total station is adopted for lofting an excavation sideline of a deeply-buried ditch, and the sideline is marked; s2, driving tunneling equipment into an operation area, adjusting the center line of the tunneling equipment to be aligned with the designed center line of the ditch, meanwhile, lifting a slag removal conveying belt of a bridge approach machine to a specified height, enabling a transport vehicle to be in place, and enabling the equipment to run in a no-load manner; s3, a tunneling system of the tunneling equipment is started, and the tunneling equipment is driven by the control system to conduct tunneling operation according to a preset track; s4, muck in the muck collecting system is conveyed to a transport vehicle through a conveying belt to be transported outwards; and S5, after the ditch is excavated, a base is formed at the bottom, and meanwhile a temporary protection wall is installed. According to the device, the randomness of manual operation is avoided through mechanical operation, process control is more convenient, meanwhile, procedure connection gaps are reduced through continuous construction, and the problem that the exposure time of the inverted arch is too long is effectively solved.

The invention discloses an underground chamber structure of a compressed air energy storage power station, a construction method and a parameter optimization design method, and belongs to the field of compressed air energy storage and underground space engineering. A hard rock stratum building chamber is determined through systematic site selection investigation, a high-performance concrete lining (containing fiber reinforcement) and a polyurethane buffer layer are adopted to synergistically improve the stability, and a vinyl ester resin-based glass fiber reinforced plastic three-layer composite structure serves as a sealing layer (including a bonding layer, a reinforcement layer and an impermeable layer); the processes of sand blasting pretreatment, stepped joint and the like are combined to guarantee the sealing performance; meanwhile, on the basis of a finite element model, structural parameters are optimized by taking the lowest whole life cycle cost as a target and taking strength, deformation, leakage rate and the like as constraints, and a recommended parameter combination of each structural layer is obtained in combination with an orthogonal experimental design and an improved genetic algorithm. The method is suitable for various geological conditions, the safety, economical efficiency and adaptability of the compressed air energy storage power station are effectively improved, and the method is suitable for large-scale application and popularization.

The invention discloses an intelligent integrated automatic pollution discharge, spray and dust suppression system for a coal mine tunnel, and relates to the technical field of automation. The system comprises a double-channel sensing assembly, a central controller, a mine communication link and an integrated pollution discharge spraying terminal group, the central controller obtains a dust image and a ground height image at the same time in combination with the double-channel sensing assembly, generates a roadway working condition grid map, completes dust level marking and ground height marking, extracts a dust cluster and a transition zone on the basis, and loads a pollution discharge component list. Constructing a descending chain from the outer edge of the dust cluster, selecting a ridge chain backbone, finally generating a cooperative control instruction set, issuing the cooperative control instruction set to the integrated pollution discharge spraying terminal group, and carrying out snapshot acceptance check by using a dual-channel sensing assembly after execution. According to the invention, accurate dust control, smooth sewage discharge and high resource utilization rate can be ensured, and the stability and long-term effectiveness of system operation can be maintained in a complex environment.

The invention discloses a method for rapidly and efficiently extracting coal mine gas in a broken and soft coal seam, and belongs to the technical field of coal seam gas development and coal mine gas prevention and control. According to the method, geological features of a coal mining planning area are determined, a ground U-shaped well and underground bottom-pumped rock drift layer-crossing drilling combined treatment system is deployed, and regional large-scale treatment is achieved in a well factory mode; the fracturing transformation range and the fracturing fluid distribution characteristics are detected by using a ground and underground combined micro-seismic monitoring and underground transient electromagnetic method, and the arrangement of layer-crossing drill holes is optimized; dividing the cross-layer drill holes into drainage holes and air exhaust holes, and formulating a collaborative extraction system in combination with different drainage and extraction stages; the method solves the problems that broken soft coal seam gas extraction is low in efficiency and long in period, and treatment blind areas exist, treatment time is remarkably shortened, cost is reduced, and safe and efficient production of a coal mine is guaranteed.

Disclose is a separator for separating liquid from a fluid stream including a mixture of gas and liquid. The separator comprises a first vessel including an outlet and an inlet for receiving the fluid stream, the first vessel in fluid communication with a second vessel via a first valve, the second vessel in fluid communication with a liquid outlet via a second valve, wherein the first vessel is arranged to enable the liquid to flow into the second vessel. The separator also has a second valve for controlling release of liquid from the second vessel, the first and second valves being pneumatically operated, the pneumatic operation of the first and second valves allowing only one of the first and second valves to be open during operation of the separator.

The present invention relates to the technical field of coal mining, in particular to a method for constructing an artificial water guide channel through drainage boreholes in a roof aquifer by means of pulse fracturing. The method involves arranging drainage boreholes and using pulse fracturing to pre-form an artificial water guide channel in a sandstone fracture aquifer through the arranged drainage boreholes, thereby improving the permeability of dense and intact sandstone rock masses; the artificial water guide channel formed by the drainage boreholes in the sandstone fracture aquifer connects discontinuous water-bearing areas and water-rich areas, such that roof sandstone fracture water‌ is guided to the drainage boreholes through the artificial water guide channel, thereby achieving effective drainage of the boreholes and expanding the drainage radiation range of a single borehole. The present invention not only avoids arranging excessive drainage boreholes and remarkably improves the drainage efficiency of exploratory drainage holes, but also achieves an advanced drainage function in a stoping process. By means of the method, mine water disasters can be effectively controlled even under unfordable geological conditions, thereby guaranteeing safe production at mines.

The invention provides a coal mine roof sandstone water long directional hole and short straight hole combined drainage prevention and control method, and belongs to the technical field of coal mine water disaster prevention and control. The method comprises the following steps: finely exploring geological and hydrogeological conditions, obtaining hydrogeological characteristics of an aquifer, and calculating static reserves and dynamic replenishment; designing and constructing a long directional hole, and determining a track parameter and a drainage amount; short straight holes are designed and constructed, a low-resistance abnormal area is arranged in a densified mode, and the drainage amount and the drawdown are calculated; constructing a multi-objective optimization model, and determining an optimal drilling position combination; partition drainage control is conducted based on the optimization scheme, the drainage speed and flow are dynamically adjusted, and grouting plugging is conducted on the waterless drill hole; the water inflow is monitored, and the drainage effect is judged according to the attenuation rate. Safe and efficient drainage of roof sandstone water is achieved, the mine water disaster risk is effectively reduced, and safe production of a coal mine is guaranteed.

The invention discloses a tunnel high-pressure gushing water comprehensive treatment method integrating probing, guiding, blocking, discharging and fixing, and belongs to the technical field of tunnel construction. The method comprises the following steps: exploring and dividing geological subsections; drainage: drilling a water diversion hole in the concentrated water gushing channel, and pre-burying a multi-stage drainage pipe for graded pressure reduction; blocking is conducted, specifically, the channel is closed through a layered pressure backfill grouting technology; a permanent drainage system is laid, and a deep drainage pipe is connected; reinforcement is carried out, and radial consolidation grouting and groove jumping type inverted arch dismounting and replacing are carried out; and the whole process is monitored in real time, and construction is dynamically optimized. According to the method, exploration, drainage, plugging, drainage, reinforcement and dynamic regulation and control are organically combined, the problems that water plugging, pressure reduction and cooperation are difficult in high-pressure water-rich karst stratum tunnel gushing water treatment are solved, and the method has the advantages of being prominent in systematicness, thorough in treatment, remarkable in pertinence, safe, controllable, novel in process, reliable in quality, dynamic in regulation and control, high in adaptability, obvious in comprehensive benefit and the like.

The invention discloses a mining vacuum drainage system, which relates to the technical field of mine drainage and comprises a tail end water collector, a height difference controller, a three-phase generator, a vacuum pipeline, an auxiliary pump station, a slag separator, a pump station system and a control system. It is ensured that the system safely and efficiently operates in roadways, tunneling faces or fully mechanized coal mining faces of coal mines, strip mines or non-coal mines. The system is applied to the tail end drainage requirement of a drainage system, a series of problems caused by decentralized drainage in a coverage area can be solved only through one vacuum drainage system, concentrated drainage of multiple drainage points is achieved, facilities such as a shift transformer, a switch, a cable, an electric pump, an air pump and an air pipe are omitted, and the cost is reduced. Concentrated drainage can be achieved only through the pump station, the vacuum pipeline and the matched water collector, great cost is saved in the aspects of purchase, installation, operation and maintenance, energy consumption, inspection, overhaul, recovery and the like of traditional drainage equipment, and the comprehensive efficiency of an original drainage system is remarkably improved.

The invention relates to the technical field of tunnel engineering disease treatment, in particular to a construction method of a drainage system for karst tunnel inverted arch upheaval disease treatment, which comprises the following construction steps: S1, arranging settlement monitoring points in a disease section tunnel, and arranging a reinforcing structure in a lining arch foot area; and S2, the existing disease inverted arch is broken and removed section by section according to the preset length, and temporary supporting is carried out in time. And S3, an overhaul window is dug in the lining through a water mill drill, and a supporting structure is synchronously installed. And S4, a foundation trench is excavated in the bottom of the inverted arch, a concrete strip-shaped foundation is poured to serve as a foundation of the steel corrugated pipe arch culvert, the steel corrugated pipe arch culvert is installed, the axis of the steel corrugated pipe arch culvert is consistent with the karst cave water flow direction, and the steel corrugated pipe arch culvert is in sealed butt joint with the confluence overhaul groove. And S5, a drainage pipe is pre-buried in the inverted arch reconstruction section, the confluence overhaul groove and the central drainage ditch are connected, and finally concrete is poured to seal the inverted arch structure. The method effectively solves the problem of upheaval of the inverted arch caused by water burst of the deeply-buried karst cave, reduces the damage of the lining structure, and improves the long-term stability of the tunnel.

A tunnel face front gushing early warning and partition drainage linkage processing method comprises the steps that risk partitions are delimited through geological advanced detection, a multi-parameter monitoring system is deployed, a dynamic early warning model is constructed and graded, and drainage units of the corresponding partitions are started in a linkage mode based on the early warning grades. The drainage capacity is dynamically regulated and controlled through a PID algorithm, the problems that traditional centralized drainage is poor in linkage performance and insufficient in capacity for coping with sudden water burst are solved, when the emergency level is triggered, personnel evacuation and tunnel face reinforcement are synchronously started, and then the model is optimized through data recovery. By means of the method, linkage of early warning, drainage and emergency is achieved, the problem that it is difficult to identify the spatial distribution of the water-bearing structure, quantify the fracture density and invert the water body burial depth at the same time through a traditional single detection means is solved, the early warning accuracy and the drainage efficiency are improved, and the method is suitable for tunnel construction safety guarantee under the complex geological condition.

The invention provides a tunnel water pump dynamic energy-saving adjusting method and system, and relates to the technical field of tunnel water pump energy-saving control, and the method comprises the steps: collecting multi-dimensional working condition data in a tunnel drainage system through a collection unit; based on the multi-dimensional working condition data, combining the water level change rate, the rainfall capacity and the total drainage demand, classifying tunnel drainage working conditions to obtain a working condition classification result; according to the working condition classification result, the water pump rotating speed is adjusted through a fusion control algorithm, and multi-pump cooperative operation is completed based on water pump efficiency sorting and load distribution logic; a fault judgment threshold value is set based on rated parameters of water pumps, historical operation data and real-time working condition data, potential faults are warned in advance by analyzing the parameter change trend, and therefore the working condition of the water pumps can be accurately judged through multi-dimensional working condition data collection, intelligent algorithm dynamic adjustment, multi-pump collaborative optimization and accurate fault warning. And on-demand energy supply of the tunnel water pump is achieved, energy consumption is reduced, operation is stable, and maintenance is efficient.

The invention discloses a coal mine deep high-stress roof stabilizing device based on a truss collaborative structure. The coal mine deep high-stress roof stabilizing device comprises a supporting module, a lifting supporting mechanism, a buffering mechanism and a flow guide filtering mechanism. The supporting modules are detachably and fixedly connected through a splicing structure, the lifting supporting mechanism is installed at the tops of the supporting modules and used for driving the supporting components to abut against a coal mine roof, the buffering mechanism is connected with the supporting components, and the flow guide filtering mechanism is arranged on the side portions of the supporting modules and used for receiving and treating roof seepage water. The invention discloses a roof stabilizing device suitable for a deep high-stress environment of a coal mine, the roof stabilizing device is composed of a supporting module, a lifting supporting mechanism, a buffering mechanism and a flow guide filtering mechanism, and through the design of convenient splicing locking, flexible buffering supporting and efficient flow guide filtering, the stability, operation efficiency and safety of roof supporting are improved.

The tunnel waterproof structure comprises a concrete arch hole and a bottom plate arranged in an inner cavity of the concrete arch hole, an arch-shaped water blocking groove matched with the outer contour is formed in the outer wall of the concrete arch hole, and a plurality of water outlet holes are evenly formed in the inner wall of the arch-shaped water blocking groove. When the device is used, the servo motor drives the winding roller to rotate, so that the tightening belt can be tightened and loosened, when the amount of permeated water is large, the servo motor can be utilized to drive the tightening belt to be tightened and extrude the water-absorbing sponge, and the water squeezing effect on the water-absorbing sponge can be further improved under the arrangement of the arc-shaped water squeezing strip; the water absorption sponge is used for absorbing water permeating into the inner cavity of the arch-shaped water blocking groove, and then the lacing belt is used for extruding the water in the water absorption sponge out of the water outlet holes and the water drainage holes, so that the water absorption and drainage efficiency is improved, and the problem that the tunnel is poor in water permeation prevention effect is effectively solved.

The invention relates to the technical field of pipelines, in particular to a self-cleaning drainage pipeline which comprises a pipeline body and is characterized in that the pipeline body comprises a self-cleaning section, self-cleaning protruding strips are arranged on the inner wall of the self-cleaning section, and the self-cleaning protruding strips are arranged in a continuous spiral surrounding mode along the inner wall of the self-cleaning section. The self-cleaning device has the beneficial effects that water scale can be inhibited to a certain degree, existing water scale can be removed, no additional auxiliary device or chemical agent is needed, self-cleaning is achieved only through the pipeline structure, shutdown operation is not needed, the drainage process is not interrupted, waste of waste pipelines is avoided, and corrosion and pollution risks are avoided; the green and environment-friendly production concept is met.

Water jet-assisted sludge extraction and conveying device, characterized in that it comprises: an extrusion pump body (1) for supplying the drive for conveying sludge from the tunnel, wherein the extrusion pump body (1) is provided with a first water inlet pipe (2) for sludge supply and a first water outlet pipe (3) for conveying sludge; a return and processing pipeline for assisting the extrusion pump body (1) in suctioning and conveying the sludge, wherein the return and processing pipeline comprises a filter element, an air bag pressurization element and a water jet flushing element, wherein the filter element is configured to separate sludge water from the sludge coming from the extrusion pump body (1) and convey the sludge water to the air bag pressurization element, the air bag pressurization element is configured to pressurize and dilute the sludge water to obtain high-pressure sludge water, and convey the high-pressure sludge water to the water jet flushing element, the water jet flushing element is configured to return the high-pressure sludge water to the sludge in the tunnel; a suction and conveying element for suctioning sludge and conveying sludge to the first water inlet pipe (2); a sand cleaning element which is connected to the air bag pressurization element and is designed to return the high-pressure sludge water in the air bag pressurization element to the first water inlet pipe (2) and thereby flush the first water inlet pipe (2) and the extrusion pump body (1).

The invention relates to the technical field of tunnel construction, in particular to a hydraulic tunnel deformation treatment method. The method is used for forming a first supporting structure for the hydraulic tunnel with the deformed side wall after primary support and before secondary lining by reinforcing the primary support, drilling drainage holes in the side wall of the hydraulic tunnel, reducing the pressure of underground water and reinforcing the support by the secondary lining to form a second supporting structure; the drainage holes are formed to drain underground water, reduce the pressure of the underground water, reduce the softening influence of surrounding rock and reduce the influence of the tunnel underground water on the side wall, through the first supporting structure and the second supporting structure, the bearing capacity of the bottom of the tunnel is further improved, the deformation resistance of the tunnel structure is enhanced, and safety and stability of the tunnel structure are facilitated; and long-term safe use of the tunnel structure is guaranteed.

The invention discloses a comprehensive drainage capacity expansion system suitable for a double-hole tunnel and a construction and operation method of the comprehensive drainage capacity expansion system, and belongs to the technical field of tunnel drainage systems. The system comprises a high-elevation tunnel and a low-elevation tunnel, the high-elevation tunnel is internally provided with an existing center circular pipe ditch A, the low-elevation tunnel is communicated with the high-elevation tunnel through a plurality of transverse channels, the low-elevation tunnel is internally provided with an existing center circular pipe ditch B and a newly-built drainage ditch, and the existing center circular pipe ditch A is communicated with the newly-built drainage ditch through a plurality of transverse channels. The newly-built drainage ditches are located between the transverse channels and the existing central circular pipe ditch B and communicate with the existing central circular pipe ditch B through drainage assemblies, transverse drainage branch ditches are arranged on the lower sides of the transverse channels correspondingly, one ends of the transverse drainage branch ditches communicate with the newly-built drainage ditches, and the other ends of the transverse drainage branch ditches communicate with the newly-built drainage ditches. And the other end is communicated with the existing central circular pipe ditch A through a connecting well. Through the comprehensive drainage system, the drainage capacity of the low-elevation tunnel and the high-elevation tunnel can be remarkably improved, and the driving safety in the tunnel and the reliability of the tunnel structure are ensured.

The invention relates to the technical field of water supply and drainage robots, and discloses a submersible type multifunctional water supply and drainage robot which comprises a robot body and an auxiliary operation unit. Two groups of water pumps are arranged in the main body, and multiple groups of drainage through holes are formed in two sides and the bottom of the main body and are communicated with the water pumping cavity to form a low-resistance multidirectional water taking and drainage channel; a scanning sonar, a single beam, an electronic compass, a tilt angle sensor, a harmful gas detection sensor, a camera, a lighting lamp and the like are arranged, the system cooperates with an electric control system, remote and autonomous operation is supported, path planning is conducted based on environment perception, and the unit time drainage efficiency in a complex environment is improved in cooperation with a pump set. The auxiliary operation unit is a mechanical arm installed on the main machine body and sequentially connected with a first connecting arm, an angle adjusting arm and a second connecting arm, the tail end of the auxiliary operation unit is provided with a clamping mechanism and a crushing mechanism, and the auxiliary operation unit is used for obstacle clearing and narrow position fixed-point crushing and guarantees continuous operation and safety. The method is suitable for flood prevention and fighting, urban inland inundation, mine, underground pipe gallery, tunnel drainage and other scenes.

The utility model discloses a mine tunnel device for controlling mine ground pressure and a rock stratum, which is characterized in that through the arrangement of structures such as a driving paddle, a transmission component, a rotating shaft, a moving shaft, a cleaning plate, a cleaning brush and a filter plate, the filter plate is arranged on a water outlet to filter running water; the large particles in the flowing water can be conveniently separated, the situation that the drainage groove and the drainage pipe are blocked by the large particles in the flowing water, and consequently the drainage groove and the drainage pipe are blocked by water which cannot flow is avoided, and meanwhile in the using process, the driving shaft is driven by the flowing water to rotate, and the driving shaft drives the rotating shaft to rotate; the rotating shaft drives the cleaning brush on the cleaning plate to clean the filter plate, so that the filter plate can be effectively prevented from being blocked by large particles in flowing water, the situation that water cannot normally flow downwards is avoided, meanwhile, the flowing water is used as a driving power source, and existing resources can be effectively, reasonably and fully utilized.

The invention discloses a control roof drainage method for multiple coal faces in a monocline structure area, which combines the characteristic that the water level of a monocline structure is gradually increased along with the burial depth, and adopts a layered and graded control drainage strategy by utilizing the burial depth difference of the working faces, and comprises the following steps of: firstly, controlling the drainage water level at a preset water head threshold value; ensuring that the water level is lower than the elevation of the bottom plate of the first mined shallow working surface, and meeting the safe mining condition of the shallow working surface; and after mining of the shallow working face is completed, the drainage amount of the drill hole is gradually increased, the drainage level is reduced, the mining requirement of the next deep working face is met, and sequential mining of multiple working faces from shallow to deep is achieved in the same manner. According to the method, the drainage drill holes are formed in the low-position roadway at a time, roof water disaster prevention and control of all the working faces are achieved in order in a controlled drainage mode, the dynamic water inflow of the working faces can be reduced, and remarkable economic, safe and environmental benefits are achieved.

The present invention provides a mechanical shield-bored separated island-type subway station drainage system, which includes a left-line shield tunnel body, a right-line shield tunnel body, a platform shield tunnel body, a left-line local water collection well, a right-line local water collection well, a wastewater pump room and a wastewater tank; the present invention fully utilizes the existing space of the shield according to the space limitations of the shield form, rationally plans and collects station drainage such as structural seepage, firefighting wastewater, and flushing water, does not need to add a separate wastewater pump room while meeting the use requirements, utilizes existing conditions and innovates thinking, has a reasonable wastewater outlet, and the wastewater pipeline laying method is convenient for construction, installation and daily maintenance and repair, and has good social and economic benefits.

The invention provides a repairable lining structure for a tunnel to pass through an active fault and a construction method of the repairable lining structure, belongs to the technical field of tunnel lining structures, and solves the problem that a lining structure for the tunnel to pass through the active fault is difficult to repair in waterproof and drainage. The primary supporting layer comprises sprayed concrete and anchor rods, the buffering energy dissipation layer comprises an outer side energy dissipation filling layer and an inner side elastic buffering layer (having the waterproof plate function), the repairable secondary lining layer is of a sectional structure, and a repairing channel is formed between every two adjacent lining sections. The lining structure provided by the invention has strong anti-dislocation performance and convenient repairability, the waterproof and drainage system and the like can be quickly repaired without dismantling an original main body structure after fault dislocation, meanwhile, the long-term operation safety of the structure is guaranteed, and the lining structure has important significance for improving the durability of tunnel engineering and reducing the maintenance difficulty of the tunnel engineering.

The utility model relates to the field of underground drainage, in particular to a coal mine underground drainage early warning device. The utility model provides a coal mine underground drainage early warning device capable of automatically dredging a pipeline. A coal mine underground drainage early warning device comprises an inclined hopper, a breast board, a middle frame, drainage pipes, a closed bin, a discharging mechanism and an early warning mechanism, the breast board is detachably installed in the middle of the inclined hopper, the middle frame is connected to the lower side of the middle of the inclined hopper, the breast board is located on the upper portion of the middle frame, the three drainage pipes are connected to the lower side of the left portion of the middle frame, and the closed bin is connected to the lower side of the right portion of the middle frame. A discharging mechanism used for achieving automatic dredging and discharging is arranged between the drainage pipe and the closed bin, and an early warning mechanism is arranged on the middle frame. By starting the motor, the thick shaft can be driven to rotate, the thin shaft is driven to rotate through the belt pulley and the transmission belt, the paddles are driven to rotate, impurities in the drainage pipe are extruded and discharged, and the trouble of dredging by workers is reduced.

The invention discloses a mine goaf water disaster prevention and control method, and belongs to the technical field of water disaster prevention and control. S2, analyzing a water burst rule of each mining area of the mine; s3, performing partition isolation feasibility research on the first mining area; and S4, comprehensive water prevention and control technical measures and countermeasures of the mine. Starting from multiple aspects of coal mining overlying strata failure law research, mine water gushing law analysis, one-mining-area partition isolation feasibility research, mine comprehensive water prevention and control technical measures and countermeasures and the like, a set of complete mine flood disease comprehensive prevention and control system is formed, flood disease occurrence can be controlled from the source, and the mine flood disease prevention and control method is suitable for popularization and application. According to the method, the systematicness and comprehensiveness of mine flood prevention and control are improved, personalized water prevention and control technical measures and countermeasures are formulated according to the differences of hydrogeological conditions, mining technical conditions and the like of different mines, the personalized requirements of the different mines can be met, and the pertinence and effectiveness of mine flood prevention and control are improved.

The utility model relates to the technical field of water prevention and drainage of shield segments of long, large and deep-buried hydraulic tunnels, in particular to an active elastic compression rubber sealing gasket for shield segments of hydraulic water delivery tunnels. The sealing gasket placing platform is connected to the bottom of the hole opening through a tiny elastic structure, and an elastic sealing gasket is installed on the sealing gasket placing platform. According to the active elastic compression rubber sealing gasket for the shield segment of the hydraulic water delivery tunnel, the problems that in the prior art, due to the fact that material compression counter-force is insufficient, the compression volume of the sealing gasket is insufficient, the elastic sealing gasket is aged and fails after being used for a long time, and the sealing gasket falls off due to the segment structure splicing problem are effectively solved; the waterproof performance, the reliability and the durability are excellent, and a powerful guarantee is provided for safe and stable operation of the hydraulic tunnel.

The invention discloses an intelligent mine disaster early warning device and system, and the device comprises a multi-mode sensing array which comprises a bionic mine pressure sensor group, a gas spectrum fingerprint recognition module, and a micro-seismic beam forming array; the adaptive communication network comprises an edge preprocessing unit and a dual-mode communication module; and the dynamic risk assessment server is configured with a spatial-temporal feature fusion neural network and a threshold evolution engine. According to the invention, three-dimensional reconstruction of a stress field is realized through a tree-shaped groove substrate of the bionic mine pressure sensor group and a three-dimensional piezoelectric network, and a multi-mode sensing system covering stress, gas and slight shock is formed in combination with wide-spectrum gas fingerprint identification of the micro Fourier infrared spectrometer and the electrochemical sensor group. The spatial resolution and the gas type recognition coverage rate can be remarkably improved, dynamic correlation analysis of cross-modal data is achieved through the spatio-temporal feature fusion neural network, the disaster precursor feature capture sensitivity can be effectively improved, and the false alarm rate can be effectively reduced.

The invention relates to the technical field of coal mining, and provides a Jurassic coal mining overlying strata separation layer water disaster prevention and control method which comprises the following steps: S1) acquiring and analyzing geological and hydrological conditions of a stoping mining area, and determining whether a separation layer exists on a top plate of overlying strata or not; s2) if it is determined that there is a separation layer, obtaining separation layer parameters, and determining a separation layer type and a separation layer water disaster type according to the separation layer parameters; s3) if the separation layer type is determined to be a disaster type, cutting off the aquifer of the top plate or cutting off a water channel flowing to the separation layer through the surrounding rock strong runoff fault zone; s4) guiding and discharging accumulated water in the separation layer through the upper flow guide hole and / or the lower flow guide hole; according to the prevention and control method, the hidden danger of separation water storage can be found as soon as possible, then the measures of cutting off a water source and guiding and draining water storage are adopted to reduce the separation water disaster in the germination stage, and the problem that in the prior art, a separation water disaster prevention and control system is lacked is solved.

The invention aims to provide a coal mine water inrush body deep ex-situ dredging and restoring method and system, and belongs to the technical field of coal mine water disaster prevention and control. The system comprises a water inrush body recognition module, a drainage depressurization system, a closed pipeline collection system, a storage stratum screening and well design module, a high-pressure storage ectopic dredging system and a safety monitoring system. According to the method, the water inrush body is identified by finely evaluating the hydrogeological conditions, the optimal hydrogeological parameters are obtained by using the parameter inversion model and the particle swarm optimization, and drainage and pressure reduction are guided; a reservoir capacity grade dynamic evaluation system is established, a deep suitable stratum is screened, collected mine water is stored back to the deep part by using high-pressure equipment, and full-period safety monitoring is performed in combination with a multi-source data fusion early warning model. The strategic reserve of the mine water depth is achieved, the underground water ecology is effectively maintained, and the treatment cost and the safety risk are remarkably reduced.

The invention relates to the technical field of drainage engineering, in particular to an intelligent water disaster emergency drainage device capable of automatically adjusting the drainage rate, the intelligent water disaster emergency drainage device comprises a box body and an adjusting system used for controlling the device to operate, the box body is communicated with a water inlet pipe and a plurality of water outlet pipes, and a filtering assembly used for intercepting silt is arranged in the box body. The filtering assembly comprises a partition plate fixedly connected to the inner wall of the box body, the water inlet pipe communicates below the partition plate, and the water outlet pipe communicates above the partition plate; the top of the partition plate communicates with a center screen and a plurality of movable screens. The joints of the water inlet pipe and the box body and the joints of the water outlet pipe and the box body communicate with electromagnetic valves. The adjusting system is further used for controlling opening and closing of the corresponding electromagnetic valves according to the needed water discharge amount. Through the integrated design of all the components, the silt treatment flow of intercepting, cleaning and discharging is formed; manual intervention is reduced, and screen maintenance is synchronously completed in the drainage process.