628results about "Drainage" patented technology

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 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 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 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 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.

This utility model discloses a gas staged extraction pipeline structure, including an upper branch pipe, a lower branch pipe, and a connecting pipe. The upper branch pipe is located above the lower branch pipe and the two are connected by the connecting pipe. Multiple connecting pipes are provided, spaced at predetermined intervals. Each connecting pipe connects to a borehole extraction pipe, which in turn connects to a borehole. One end of the upper branch pipe is closed, and the other end is connected to the main gas pipe via a branch pipe. One end of the lower branch pipe is also closed, and the other end connects to a water drainer. By setting up the upper and lower branch pipes and connecting them with the connecting pipe, which is then connected to the boreholes, the gas and accumulated water from each borehole are discharged together into the short connecting pipe. Gas enters the upper branch pipe, and accumulated water enters the lower branch pipe. The upper branch pipe connects to the gas extraction pipeline, and the lower branch pipe connects to the water drainer, achieving separate extraction of gas and accumulated water, improving extraction efficiency, avoiding the need for a separate water drainer, and reducing equipment costs.

The utility model relates to the technical field of cold-proof drainage pipelines, and discloses a cold-proof anti-freezing tunnel drainage blind pipe which comprises a pipeline body, a connecting shell is fixedly connected to the front end of the pipeline body, exhaust holes are formed in the four sides of the outer wall of the rear end of the pipeline body, and blades are connected to a gas transmission set on the inner wall of the connecting shell. Supporting pipes are rotationally connected to the outer walls of the blades, a heat preservation layer is arranged on the outer side of the pipeline body, and a ventilation frame is arranged on the inner side of the heat preservation layer. According to the utility model, continuous heating and air renewal in the pipeline are realized, the cold-proof effect of the pipeline is maintained, the adaptability and the flexibility of the pipeline are improved, the functionality and the safety of the pipeline can be effectively maintained under different environmental conditions, the service life of the pipeline in the conveying process can be remarkably prolonged, and the pipeline is convenient to use. And long-term reliable operation is ensured, so that the pipeline not only can cope with complex environmental conditions.

The utility model belongs to the field of coal mine drilling blowout prevention holes, and aims to solve the problems that water and coal cinder in a hole easily and directly enter a main pipeline, gas fluctuation is easily caused by opening small negative pressure, and hidden dangers are caused to production efficiency and production safety in a traditional gas-water separation device. The utility model provides a common drill four-hole gas-water separator which comprises an upper-layer barrel, a lower-layer barrel and a pipeline connected between the upper-layer barrel and the lower-layer barrel. The upper surface of the upper-layer barrel body is provided with a pipe orifice for connecting a main pipeline negative pressure, an orifice blowout preventer, an orifice standby negative pressure and a hole wall standby negative pressure; the lower-layer barrel is located at the lower end of the upper-layer barrel, a second valve is arranged at the bottom of one side of the lower-layer barrel, and a first valve is arranged on a pipeline between the upper-layer barrel and the lower-layer barrel. The device is high in reliability, the problem that water and coal slag enter an extraction system in the drilling machine construction process can be effectively solved, and gas fluctuation caused by water drainage is avoided.

The utility model discloses an adjustable supporting system for a tunnel central ditch template, which is arranged between a left ditch template and a right ditch template and comprises a vertical upright post, a first supporting and adjusting mechanism and a second supporting and adjusting mechanism which are arranged on an inverted arch structure layer, each of the first support adjusting mechanism and the second support adjusting mechanism comprises a plurality of groups of support adjusting mechanisms arranged in the height direction; template sleeves are arranged on the left ditch template and the right ditch template; upright post sleeves are arranged on the left side and the right side of the vertical upright post; each supporting and adjusting mechanism comprises two telescopic adjusting rods inserted into the front end and the rear end of the formwork sleeve and the front end and the rear end of the stand column sleeve. The utility model has the advantages of simple structure, firm integral reinforcement of the template, capability of adjusting the line type of the central ditch template so as to adapt to the fine adjustment requirement of the tunnel central ditch template, convenience in assembly and disassembly, reusability, improvement of the finished ditch quality and improvement of the construction efficiency.

The utility model discloses a karst water-rich tunnel comprehensive prevention and control drainage device which comprises a bottom frame, reinforcing ribs are arranged on the surface of the bottom frame, and one side of the top of the bottom frame is fixedly connected with power supply equipment. The bottom of the mounting moving assembly is fixedly connected with the top of the bottom frame, and the mounting moving assembly is used for quickly mounting and integrally moving the drainage water pump; one end of the filtering assembly is fixedly connected with one side where the moving assembly is installed, the filtering assembly is used for filtering and maintaining dirt sucked in the water pumping process, and the utility model relates to the technical field of drainage devices. According to the comprehensive prevention and drainage device for the karst water-rich tunnel, the movable assembly is arranged, the universal brake wheels and the handle are adopted, the whole water pump body can move rapidly and stably, and the movable pump station is ingeniously arranged at the position of a tunnel face in the tunnel and has the capacity of flexibly moving in the tunneling direction of the tunnel face.

The invention discloses a tunnel body primary support method for water-rich surrounding rock, which comprises the following construction steps: S1, carrying out advanced geological forecast on a water-rich tunnel to be constructed to obtain geological conditions of the tunnel; if the geology is rich in water, continuing, and if the geology is not rich in water, ending; s2, a plurality of drainage holes are formed in the tunnel face in the tunnel excavation direction; s3, a plurality of grouting guide pipes and / or a plurality of mortar anchor rods are / is arranged near the contour line of the tunnel in the tunnel excavation direction; s4, tunnel excavation; s5, primarily spraying concrete; s6, arch frame construction; s7, monitoring a water leakage position, covering the water leakage position with a waterproof plate, and reserving a water collection cavity between the waterproof plate and the water leakage position of the sprayed surface; s8, a drainage blind pipe communicated to the water collecting cavity is arranged, and the water collecting cavity at the water leakage position of the outer cover is merged into a drainage system of the water-rich tunnel through the drainage blind pipe; s9, tunnel body anchor rod construction; s10, re-spraying concrete; the working environment can be improved, the tunnel body construction condition is improved, and then the construction progress is guaranteed.

The invention provides a hot water type uranium deposit underground heat damage cooperative prevention and control method, and belongs to the technical field of mine heat damage prevention and control, and the method comprises the following steps: S1, monitoring deposit geothermal heat damage data, and obtaining monitoring data of rock mass internal temperature, rock wall surface temperature, drainage ditch water temperature, air wind speed, environment temperature and humidity; s2, based on the monitoring data, calculating heat source heat dissipating capacity and dividing heat damage grades, predicting underground temperature field distribution of the mine, and dividing areas with different heat damage grades; and S3, according to the heat damage grade division, implementing at least one prevention and control means of underground excavation working face heat damage prevention and control, underground equipment heat dissipation prevention and control and operator individual heat damage prevention and control aiming at areas with different heat damage grades to form a cooperative prevention and control system. The cooperative system is formed by integrating three types of core prevention and control means, all-directional coverage of heat damage of different dimensions of an underground excavation working face, an equipment area, operators and the like is achieved, and the overall efficiency and economical efficiency of heat damage treatment are remarkably improved.

The application discloses a cutter head with a water pumping and discharging function and a tunneling machine. The cutter head with the water pumping and discharging function comprises a cutter head main body, at least one first multi-way valve and a plurality of water conveying pipelines are arranged on the cutter head main body and away from a working face side. The first multi-way valve has a plurality of inlets and at least one outlet. The first ends of the plurality of water conveying pipelines are connected with the inlets of the corresponding first multi-way valves respectively. The second ends of the plurality of water conveying pipelines extend to the edges close to the cutter head main body, pass through the cutter head main body and extend to the cutter head main body and the side facing the working face. The second ends of the plurality of water conveying pipelines are distributed along the circumferential direction of the cutter head main body. The application solves the technical problem of poor water discharging effect of the cutter head.

The invention discloses an automatic drainage control device for an underground sump. Relates to the technical field of underground drainage, and comprises a fixed platform fixed in an underground sump and a vertical guide rod, one end of the guide rod is fixed on the bottom surface of the sump, and the other end of the guide rod is connected with the fixed platform; the guide rod is sleeved with a floating plate, a contact head is arranged on the floating plate, a magnetic attraction type touch switch for controlling the water pump to be started and stopped is arranged on the fixed platform, and the floating plate slides along the guide rod so as to drive the contact head to abut against the magnetic attraction type touch switch; through the arrangement of the floating plate, the magnetic type touch switch and the balance weight plate, the control switch can automatically turn on the water pump along with the rising and falling of the water level so as to drain water from an underground sump, and after water drainage is completed, the balance weight plate drives the floating plate to automatically disconnect under the action of gravity; manpower is reduced, and meanwhile the defect that a common water level sensor is prone to faults is overcome; and high-reliability, low-maintenance and self-adaptive drainage operation in a real sense is realized.

The invention provides a water stop and drainage dynamic regulation and control construction method for a deeply-buried tunnel to pass through a water-rich pressure-bearing layer, which comprises the following steps of: detecting geological related data of the tunnel, and performing stratum risk grade division based on the detected data; designing a waterproof curtain, a drainage and depressurization hole and a drainage system based on the risk level and geological related data; layered and segmented construction is adopted, drainage and pressure reduction holes are constructed firstly, then curtain grouting is conducted in a layered and segmented mode, a monitoring system is arranged, and water inflow, water pressure, grouting pressure and stratum settlement data are monitored; closed-loop regulation and control are realized through a central control system based on monitoring data; the water stopping and pressure relief effects are evaluated based on the monitoring data, and crossing construction is conducted when the evaluation index reaches the standard. Through full-process management, controllable release of water pressure, accurate construction of the waterproof curtain and intelligent matching of a drainage system are achieved, the water inrush risk is fundamentally reduced, stratum disturbance is reduced, and construction safety and efficiency are guaranteed.

This invention discloses a tunnel reverse slope drainage system suitable for TBM construction, comprising: a pumping station including several sewage pumps and submersible pumps, used for pumping water in normal drainage phases by connecting to low-power pumps, and for pumping water in emergency drainage phases by connecting to high-power pumps; a sewage tank for storing equipment wastewater generated during TBM construction; a TBM material transfer tunnel water collection tank for collecting and cooperating with the sewage pumps to discharge equipment wastewater during normal drainage phases, and serving as a temporary water collection tank for small amounts of water seepage in unfavorable strata during emergency drainage phases; a water collection pit for draining seepage and water seepage behind the completed tunnel; a three-stage sedimentation tank for sedimentation treatment of wastewater generated during TBM construction; and several drainage pipelines. The pipelines configured in this invention for emergency drainage are suitable for disaster-prone situations during tunnel construction, used to drain seepage and sudden water seepage near the TBM construction face.

The utility model belongs to the field of wastewater treatment, and particularly provides a system for treating tunnel construction wastewater, which comprises a secondary sedimentation tank, a tertiary sedimentation tank and integrated equipment which are sequentially arranged along the flow direction of the wastewater, as well as three on-line sensors for monitoring the pH value of the wastewater and two on-line sensors for monitoring the SS value of the wastewater, the system further comprises a pH first-stage adding device, a pH second-stage adding device, a coagulant adding device and a flocculant adding device, and the online sensor and the adding devices are electrically connected with the controller. The system for treating the tunnel construction wastewater provided by the utility model can accurately meter the dosage of chemicals, automatically configure the concentration of the chemical liquid and accurately control the flow of the chemical liquid according to the change of the concentration and the water quantity of the tunnel construction wastewater, and also can adjust in real time according to the change of the quality and the water quantity of the wastewater.

The mine drainage equipment convenient to clean comprises a bottom plate, a water pump, a water tank, a liquid supply pump and a motor, the water pump, the water tank, the liquid supply pump and the motor are arranged on the bottom plate, the water inlet end of the water pump is connected with a rotatable filtering mechanism through a water inlet pipeline, and the water outlet end is connected with a drainage pipeline; the filtering mechanism comprises a first shell and a second shell which are coaxially butted; a filtering assembly capable of rotating around the axis is arranged in the first shell; the motor is connected with the filtering assembly through a gear transmission mechanism; a flushing assembly communicated with the liquid supply pump is arranged on the side wall of the second shell, and the spraying direction of the flushing assembly faces the surface of the filtering assembly; a flow guide structure is arranged downstream the filtering assembly. The filter plate rotates in the first shell, all areas on the surface of the filter plate can be flushed by the water spraying pipes, and dead-corner-free cleaning is achieved under the condition that the filter plate does not need to be disassembled frequently; meanwhile, the liquid supply pump sprays water tank cleaning liquid through multiple holes of the water spraying pipe to form back-flushing water flow, and the impurity stripping efficiency is remarkably improved through the combined action of rotary motion and water flow impact.

This utility model relates to the field of tunnel de-icing technology and discloses a tunnel de-icing control device, including a server. Multiple disassembly mechanisms are installed on the top of the server, and a tunnel body is installed at the rear of the server. The multiple disassembly mechanisms are used to de-ic the tunnel roof. A protective mechanism is installed on the inner bottom of each disassembly mechanism to prevent water from the de-iced surface from affecting the probe. Two connecting frames are installed on the bottom right side of the tunnel body, and the same control mechanism is installed on the left side of each connecting frame. The disassembly mechanism includes multiple I-beams. In this utility model, the de-icing plate is fitted into a threaded rod through a mounting hole and secured with a nut. During maintenance, the nut can be unscrewed to remove the de-icing plate for inspection. This achieves efficient melting of the ice layer on the tunnel roof, ensures a controllable de-icing process, and facilitates easy disassembly and maintenance of the de-icing plate, improving the device's de-icing efficiency, controllability, and ease of maintenance.

The present disclosure provides a graded underground pumped-storage hydropower system in a coal mine, and construction and methods of use. The system comprises a surface reservoir, wherein multi-stage stepped underground reservoirs are arranged below the surface reservoir, and there is no communication between the multi-stage stepped underground reservoirs. One side of the underground reservoir on each layer is provided with a hydraulic turbine room, and an upward water conveyance passageway and a downward water conveyance passageway are arranged between the hydraulic turbine room and each underground reservoir. Additional water conveyance passageways are arranged between the hydraulic turbine rooms among the layers. During use, the present disclosure can achieve multi-grade power generation and energy storage capabilities by controlling sluice gates, adjusting water flow directions as required.

The invention belongs to the technical field of tunnel construction, and discloses a protection device for tunnel construction and a using method of the protection device. A header tank; a drain pipe group; the supporting device is connected with the water collecting tank; a drilling assembly; and a slurry supplementing assembly. The notch set is excavated at the upper end of the to-be-excavated section of the tunnel before the step is excavated, the water collecting tank is embedded into the notch set, seepage water can flow into the water collecting tank through a plurality of water inlets and is drained through the drainage pipe set, the situation that the seepage water directly washes the step when the step is excavated can be avoided, and therefore the phenomena of water accumulation and softening are avoided; when water seepage is slowed down, drilling is conducted on the top in the notch set, then grouting is conducted, the portion, above the notch set, of the rock soil is filled with grout, the solidified grout and the rock soil are anchored into a whole, the firmness of the rock soil on the top can be reinforced, continuous water seepage of the area can be prevented, and the probability of water seepage is greatly reduced.

The utility model provides a slag storing and discharging system of a drainage pipe. The slag storing and discharging system of the drainage pipe comprises a slag discharging box, an overflow pipe and a slag discharging pipe. When the slag storage and discharge system for the drainage pipe is used, liquid in the drainage pipe is discharged into the slag discharge box, coal slag in the liquid is precipitated in the slag discharge box and can be discharged through the slag discharge pipe, and the liquid in the slag discharge box can overflow from the overflow pipe below and then flow into the water drainage device. When the height of coal slag in the slag discharging box exceeds the height of the lowest overflow pipe or the lower overflow pipe is blocked, liquid in the slag discharging box can overflow from the upper overflow pipe. When an operator inspects or inspects on site, after liquid is discharged from the automatic water discharging device corresponding to the overflow pipe located on the upper portion, abnormity can be found in time, deslagging operation can be carried out, dredging maintenance can be carried out on the overflow pipe located on the lower portion, and the situation that liquid cannot be discharged from the interior of the deslagging box, and later gas drainage is affected is avoided.

The invention discloses a refined deslagging and drainage system, and relates to the technical field of operation and maintenance of coal mine gas pipelines. The system comprises a multi-sensor fusion sensing module, a dynamic adaptive control module, a graded deslagging execution module, an anti-blocking self-cleaning module, a distributed fault self-diagnosis module and a modular extensible control framework. The multi-sensor fusion sensing module collects working condition data such as slag particle concentration and pressure in a pipeline, the dynamic self-adaption control module judges working conditions and blocking risks in a grading mode and outputs accurate instructions, and the grading type slag discharging execution module adapts to different working conditions through main and auxiliary pump grading operation and energy recovery. The anti-blocking self-cleaning module cooperates with forward and reverse rotation of a pump body to prevent blocking through high-pressure pulse washing, the distributed fault self-diagnosis module monitors and early warns faults in real time, and flexible expansion and system compatibility are achieved through a modular architecture. According to the system, accurate deslagging, anti-blocking, energy-saving and stable operation under the high-concentration slag-containing working condition are achieved, and the operation adaptability and the operation and maintenance convenience are improved.

The utility model provides a mining air pump automatic drainage structure which comprises an air pump, the water outlet end of the air pump is connected with a first three-way connector, the air inlet end of the air pump is connected with a second three-way connector, the first three-way connector is connected with a first connector and a drainage pipe, and the second three-way connector is connected with a second connector and an air pipe. The first connector and the second connector are connected through a high-pressure hose, and a movable chassis is installed at the bottom of the air pump. By arranging the first three-way connector, the second three-way connector, the first connector and the second connector, compressed air conveyed to the air pump by the air pipe can be conveyed into the drainage pipe through the high-pressure hose during use, water in the drainage pipe is secondarily pressurized, the flow speed of the water is increased, the lift of the air pump is effectively improved, and the service life of the air pump is prolonged. Therefore, the small air pump can meet the drainage requirement, and the equipment investment cost can be effectively reduced.

The invention provides a complete set of tunnel reverse slope drainage sewage treatment equipment, which is characterized in that complete sets of treatment systems are arranged in a tunnel and are sequentially arranged along the gradient of a reverse slope; the system comprises a collection unit for collecting sewage, a flocculation and precipitation unit for dosing flocculation and preliminary precipitation, a multi-stage self-flow precipitation unit for performing multi-stage precipitation by virtue of gravity self-flow, a fine filtration and clear water storage unit for performing fine filtration and clear water storage, and a sludge treatment unit for treating sludge, each unit adopts a modular design with a standard size, a horizontal pedestal is arranged at the bottom to adapt to a slope terrain, a system total lift pump is arranged at the final stage of the flocculation precipitation unit, and a pneumatic backflushing unit is arranged to prevent sludge from hardening; according to the technical scheme, the environmental adaptability is improved; the probability of blockage caused by long-distance pipeline conveying is reduced; large-scale civil engineering is not needed, and resource waste and environmental damage are reduced; invalid energy consumption caused by traditional multi-stage lifting is reduced; and the overall reliability and efficiency of the system are improved.

The present application relates to the technical field of underground gas storage, and discloses a double-layer sealing structure for underground gas storage, a design method and a construction method thereof. In the double-layer sealing structure, a complete closed shell is formed by on-site roll bending and continuous welding of a high-elastic steel plate, and together with a sliding layer, forms an overall sealing system without joints and weak links. Compared with the traditional block lining or the scheme of setting expansion joints, the leakage hidden danger caused by stress concentration or material aging at the joints or joints is completely avoided, and the long-term gas-tight reliability of the gas storage under the repeated action of high internal pressure is improved. At the same time, the sliding layer is made of flexible material, which can effectively absorb the displacement and cracking deformation of the surrounding rock caused by pressure change, and uniformly transmit the deformation to the high-elastic steel sealing layer, so that the sealing structure can be transformed from passive adaptation to active adaptation, avoiding stress concentration and crack propagation caused by deformation incoordination of the traditional rigid lining, thereby preventing the sealing layer from being torn or pierced.

The utility model belongs to the field of building construction, and particularly relates to a ditch cable trough template fixing device relying on a duct piece bolt, which comprises a cross beam and a carrying pole beam arranged on the cross beam in a sliding mode. The two ends of the cross beam are connected with circumferential bolts of the duct pieces; and the carrying pole beam is connected with a pressing beam of the ditch cable trough template. According to the device, on the premise that expansion bolts are forbidden to be arranged on the concrete duct piece in a driving mode, operability and convenience of reinforcement of the ditch cable trough formwork are fully considered, potential quality hazards are eliminated, applicability of the ditch cable trough formwork is enhanced, the quality requirement for protection of a finished concrete duct piece product is met, it is ensured that the duct piece is attractive in appearance, and the overall image of a tunnel is improved.

The utility model discloses a tunnel main part bottom plate and side wall deformation joint waterproof structure, including bottom plate deformation joint waterproof structure, side wall deformation joint waterproof structure and bottom plate and side wall joint waterproof structure, bottom plate deformation joint waterproof structure includes bottom plate recess, punch corrugated pipe, apron and concrete filling layer, side wall deformation joint waterproof structure includes side wall recess and water receiving box, and side wall deformation joint and water receiving box enclose the water guide channel to the downward, bottom plate and side wall joint waterproof structure includes roadside apron ditch, and the end of punch corrugated pipe near side wall and the bottom end of water receiving box all are communicated with roadside apron ditch. The utility model discloses a tunnel main part bottom plate and side wall deformation joint waterproof structure, through bottom plate and side wall adopt " with the main, with the supplementary of the row " waterproof structure, effectively guarantee the service life of deformation joint waterproof structure, prevent the water seepage of later stage and overflow to bituminous pavement or the interference pavement.

The utility model relates to tunnel maintenance technical field especially a kind of local sleeve arch reinforcing structure for mountain tunnel lining cracking, including fixed groove, arc supporting plate and precast block, the fixed groove is set on the secondary lining of tunnel along tunnel longitudinal direction, the arc of the arc supporting plate is consistent with the arc of tunnel top, linear segment is provided at the both ends of arc supporting plate, the linear segment is fixed in the fixed groove, the arc supporting plate is equipped with accommodating space, the cross-sectional shape of precast block corresponds with the cross-sectional shape of accommodating space, precast block is fixedly connected with the arc supporting plate, and precast block fills accommodating space.Arc supporting plate and precast block can be produced in advance in factory, only need to open fixed groove on the secondary lining of both sides of tunnel in tunnel construction, simplify the cumbersome construction process, can greatly shorten the time of sleeve arch reinforcing technology construction.