141results about How to "Save engineering investment" patented technology

The invention provides an unfavorable geological section treatment structure of an underground high-pressure gas storage and a design method of the unfavorable geological section treatment structure. The treatment structure comprises replacement concrete arranged between a weak structural layer and backfill concrete. The section of the replacement concrete in the radial direction of the gas storage is an isosceles trapezoid, the upper bottom edge of the isosceles trapezoid is connected with the weak structure layer, the lower bottom edge of the isosceles trapezoid is connected with the backfill concrete, the two waist edges of the isosceles trapezoid are connected with the surrounding rocks on the two sides of the replacement concrete respectively, and the length L3 of the upper bottom edge is smaller than the length L1 of the lower bottom edge. The treatment structure can prevent the safety problem of the gas storage caused by the characteristics of low strength, easy deformation and the like of the weak structural layer.

The invention provides an automatic design and arrangement method for rail transit shield interval monitoring. Comprising the steps of running an AutoCAD secondary development program and application software, reading line design scheme data, interval design scheme data and interval along-line control point data, setting interval monitoring arrangement parameters in the AutoCAD secondary development program, selecting an interval needing shield interval monitoring design and arrangement, and carrying out shield interval monitoring design and arrangement. Then automatically arranging interval ground surface settlement monitoring points, interval monitoring sections, interval along-line building vertical displacement and crack monitoring points and interval along-line underground pipeline vertical displacement and differential settlement monitoring points; according to the method, a line and interval design scheme and control point information along the line are digitized, interval monitoring arrangement parameters are flexibly set, the length and mileage of the line are automatically measured, automatic design and uniform and reasonable arrangement of interval monitoring points and monitoring sections are achieved, engineering investment is saved, a large amount of repeated manual operation in a CAD model and layout is avoided, and the working efficiency is improved. Productivity is liberated, and production efficiency is improved.

The invention discloses a floating suspension type jacket high-pile wharf structure suitable for ultra-large water depth and a construction method, and belongs to the technical field of high-pile wharfs. The structure comprises a jacket, a pile foundation and an upper structure; the lower part of the upper structure is connected with a pile foundation; the jacket is installed on the lower end face of the upper structure and connected to the pile foundation. The upper structure comprises a sleeve box type pile cap, a cross beam, a longitudinal beam and a laminated panel; the sleeve box type pile cap is installed on the upper end face of the pile foundation. The longitudinal beam system is installed on the upper end face of the sleeve box type pile cap. The cross beams are mounted between the adjacent longitudinal beam systems; and the laminated panel is flatly laid on the surface layer of the upper structure. The structure adapts to a large-water-depth and large-flow-velocity environment by exerting the structural advantages of the structure, and the structure is small in underwater construction work amount, high in assembly degree, small in environmental influence, short in construction period and low in engineering investment.

The utility model discloses a rock-fill dam, which relates to the technical field of water conservancy and hydropower engineering and comprises an asphalt concrete core wall, an upstream rock-fill area and a downstream rock-fill area. The downstream rockfill area comprises a first strength area and a fully-weathered rock area, one side of the fully-weathered rock area is connected with one side of the upper end of the asphalt concrete core wall, and the bottom of the fully-weathered rock area is connected with the top of the first inverted filter layer; the upstream rockfill area comprises a second strength area and a fully strong weathered rock area, one side of the fully strong weathered rock area is connected with the other side of the lower end of the asphalt concrete core wall, and the bottom of the fully strong weathered rock area is connected with the ground. The fully-weathered rocks are used above the normal water level of the rock-fill area at the downstream of the dam, and part of the fully-weathered rocks are used below the dead water level of the rock-fill area at the upstream, so that the fully-weathered rocks are fully utilized, the utilization rate of excavation materials is increased, the project investment is reduced, and environmental protection and water and soil conservation are facilitated.

The invention discloses an underground excavation supporting structure capable of freely expanding boundaries for a large-span underground cavern and a construction method, the overall design thought of the supporting structure is that a structural unit is formed by structural members such as a middle pile / column, each layer of beam, a large arch and each layer of structural plate, and the structural members are arranged in a set cavern boundary range. The underground cavern is formed by freely expanding a plurality of structural units in the transverse dimension, the longitudinal dimension and the vertical dimension. According to underground cavern scale requirements in different periods, boundaries can be expanded at any time, structural units can be increased, and the cavern scale can be expanded. The span of a single structural unit can be flexibly designed. During implementation of the supporting structure, temporary projects such as a working well, a main construction tunnel and auxiliary construction tunnels are arranged, the working well is arranged above the main construction tunnel or at one end of the side face of the main construction tunnel according to conditions such as site conditions and work planning organizations, and the auxiliary construction tunnels can be arranged on the single side or the two sides of the main construction tunnel. The temporary project can be combined with an auxiliary project to achieve permanent and temporary combination.

The utility model discloses a ZVI packed bed A / O treatment device for efficiently removing antibiotics and ARG in pig raising wastewater, relates to the technical field of pig farm wastewater treatment, and solves the problems that the existing livestock and poultry farm wastewater treatment method is poorer in removal effect on antibiotics and resistance genes thereof, long in process flow and high in cost. The device comprises a water inlet tank, a reactor main body, an aeration device and a water outlet tank, the water inlet tank, the reactor main body and the water outlet tank are sequentially communicated, and the aeration device is arranged on the reactor main body; the reactor main body comprises a plurality of anaerobic chambers, a plurality of aerobic chambers and an effluent overflow pool, the anaerobic chambers, the aerobic chambers and the effluent overflow pool are sequentially communicated, the water inlet tank is communicated with the first anaerobic chamber, and the aeration device is communicated with the aerobic chambers; the effluent overflow pool is communicated with the first anaerobic chamber through a reflux pump; and packed beds are arranged in the anaerobic chamber and the aerobic chamber. According to the utility model, through mediation of zero-valent iron, effective removal of antibiotics and resistance genes thereof is realized.

The invention discloses a reverse leakage monitoring structure for a compound concrete face rockfill dam, which comprises a maintenance drainage gallery on the basis of the existing compound concrete face rockfill dam, a measuring weir is arranged in the maintenance drainage gallery, and 2-4 layers of drainage pipes are arranged in a space, facing the maintenance drainage gallery, between an inverted filter area of a horizontal section and a drainage strip. The invention further discloses a reverse monitoring method for the leakage amount of the compound concrete face rockfill dam. The reverse monitoring method comprises the steps that firstly, the measuring weir is arranged in the overhaul drainage gallery; 2, a drainage pipe is arranged in the rockfill dam; 3, the leakage amount of the compound concrete face rockfill dam is calculated; and step 4, completing the evaluation of the leakage amount of the compound concrete face rockfill dam. The invention belongs to the technical field of hydropower engineering, and solves the problems of unreasonable structure and large limitation of the leakage monitoring mode of a compound concrete face rockfill dam in the prior art.

The present invention provides a construction method and structure of a communication channel of a stacked tunnel, which is characterized by: first setting up an open-cut shaft structure, and combining the internal structure arrangement of the shaft, forming a reinforced concrete structure closed space around the intended crossing range of the up and down shield tunnels; backfilling water and sand in the shaft and outside the reinforced concrete structure closed space, and before and after the shield tunnel is excavated to the shaft, the down and up shield tunnels are successively excavated through the backfill body of the shaft; after the up tunnel passes through the shaft, the backfill water and sand in the shaft are pumped out, and a transverse channel is secretly excavated in the backfill body of the shaft, and finally the remaining auxiliary structures are completed in the shaft. The present invention is suitable for tunnels between up and down sections with large elevation differences, and the shield tunnel is secretly received and started by backfilling in the shaft, and a communication channel is secretly excavated in the backfill body, which shortens the construction period, reduces the project investment, and reduces the construction risk.

The utility model provides a compact no support taper Y type steel bifurcated pipe structure for hydrostatic test, including main taper, main taper pipe, support taper pipe, reinforcing rib, main taper blind, support taper pipe blind and gear type reinforcing ring to the steel plate, the upstream side of main taper is coaxial welding main taper blind through gear type reinforcing ring to the steel plate, the downstream side of main taper is coaxial welding main taper pipe, the downstream side of main taper pipe is symmetrical each welding fixed one support taper pipe left and right, sets up reinforcing rib between two support taper pipes, the downstream side of each support taper pipe is coaxial welding support taper pipe blind through gear type reinforcing ring to the steel plate. The utility model can effectively solve the problem of the big size of steel bifurcated pipe hydrostatic test body, the big thickness of blind and the poor quality of blind and main pipe weld, thereby reducing the traffic hole, construction support hole excavation section size, saving the project investment and construction period, improving the blind and steel bifurcated pipe weld joint quality simultaneously, avoiding the security risk of steel bifurcated pipe body type hydrostatic test, providing a novel device for steel bifurcated pipe hydrostatic test.

The utility model relates to a tunnel structure combining diversion, water delivery, emptying and ecological discharge. The method is suitable for the technical field of water conservancy and hydropower engineering. According to the technical scheme, the tunnel structure combining flow guiding, water conveying, emptying and ecological discharging is characterized by comprising a flow guiding tunnel, the first end of the flow guiding tunnel is located on the upstream of a dam, and the second end of the flow guiding tunnel is located on the downstream of the dam; the water intake tower is arranged at the first end of the diversion tunnel, at least two water intake ports located at different heights are formed in the water intake tower, and the water intake ports are provided with water intake gates; the concrete plug is arranged in the diversion tunnel and can be used for plugging the diversion tunnel, and a pressure steel pipe communicated with the upstream and the downstream of the plug is arranged in the plug; at least part of the water conveying steel pipe is located in the diversion tunnel on the downstream side of the concrete plug, and a water inlet of the water conveying steel pipe communicates with the pressure steel pipe in the concrete plug; the blow-down pipe is connected to the water conveying steel pipe and is provided with a control valve; and the ecological drainage pipe is connected to the blow-down pipe and is provided with a control valve.

The invention relates to a hydraulic structure permanently and temporarily combined with a cast-in-place pile support and a construction method of the hydraulic structure. The method is suitable for the technical field of water conservancy and hydropower engineering. The technical problem to be solved by the invention is to provide the hydraulic structure permanently and temporarily combined with the cast-in-place pile support and the construction method of the hydraulic structure. According to the technical scheme, the hydraulic structure combined with the cast-in-place pile support permanently and temporarily comprises a support structure and a plurality of cast-in-place piles, the cast-in-place piles are arranged on the two sides of a river channel respectively, and the cast-in-place piles are matched to provide foundation pit support in the construction period and form a side pier structure of the hydraulic structure; the supporting structure is arranged between the cast-in-place piles on the two sides, and the supporting structure is matched with the cast-in-place piles to provide foundation support for the hydraulic structure; and the upper building is arranged above the supporting structure and the supporting structure, and a gate and trash rack structure is arranged at the bottom of the upper building.

The present invention discloses a fire water supply system for an ultra-long tunnel, which is a special design for the fire water supply system of ultra-long tunnels in high-cold and high-altitude areas such as the Tianshan Tunnel: a "high-level water tank in the tunnel" is set at a suitable position in the tunnel, and the tunnel pipe network is reasonably divided into zones, each high-level water tank supplies water for tunnel fire fighting in the corresponding zone, and the ultra-long tunnel is virtualized into a number of "short tunnels", which solves the problem of pipe network overpressure caused by excessive static height difference in the tunnel, and effectively normalizes and simplifies complex problems. In addition, the ambient temperature in the tunnel is higher than that outside the tunnel, and there is almost no freezing problem for fire-fighting facilities such as high-level water tanks and pipelines in the tunnel at a certain length from the cave entrance, and the structural seepage in the tunnel can be fully utilized, so that a series of problems such as water sources, high and low-level water tanks, and pipeline freezing when high and low-level water tanks are set outside the tunnel can be solved.

The invention provides a water diversion aqueduct and slag retaining wall combined arrangement structure and a construction method, a water diversion canal system is arranged under the topographic conditions of a high steep slope and a developed deep trench in a high seismic intensity area, an aqueduct is arranged in a building of the water diversion canal system to cross the deep trench, and a concrete slag retaining wall is arranged in the deep trench in combination with the aqueduct to reduce the height of the aqueduct. Pier columns of the aqueduct take slag blocking walls as foundations, the bottoms of the pier columns adopt an expanded section form, and vertical steel bars are arranged to penetrate into the concrete slag blocking walls. The inner side of the slag blocking wall is filled with waste slag of channel system construction, and a water intercepting and draining ditch is arranged around a slag stacking body and penetrates through the aqueduct. According to the aqueduct structure, the anti-seismic safety degree of the aqueduct structure can be improved, the engineering investment of the aqueduct is saved, the slag field can be arranged on the inner side of the slag stopping wall, and nearby slag discarding of canal system engineering is facilitated so that the transportation cost can be saved.

A connecting tower for a compact circuit and a conventional circuit comprises a tower body, a right side ground wire cross arm, a left side ground wire cross arm, a left side wire cross arm, a T-shaped jumper cross arm, a right side upper phase wire cross arm, a right side lower phase wire cross arm and an L-shaped jumper cross arm, and the T-shaped jumper cross arm is arranged at the end of the right side ground wire cross arm and the end of the left side wire cross arm. The L-shaped jumper cross arm is arranged at the end part of the lower-phase lead cross arm at the right side; the front portion and the rear portion of the right side upper phase wire cross arm are respectively provided with a first wire tension string hanging point, the front portion and the rear portion of the left side wire cross arm are respectively provided with a second wire tension string hanging point, the rear side of the middle of the tower body is provided with a third wire tension string hanging point, and the rear side of the right side lower phase wire cross arm is provided with a fourth wire tension string hanging point. By utilizing the strain tower, the strain tower shaped like the Chinese character'gan 'of a compact line and a conventional line can be connected, enough electrical safety distance can be kept, steel of the iron tower is reduced, and engineering investment is saved.

The utility model relates to the technical field of electric power facilities, in particular to a power transmission line drilling steel frame which comprises a drilling wire steel frame, a drilling ground wire steel frame and a tower body gusset plate. The through-drilling wire steel frame and the through-drilling ground wire steel frame are connected to the tower body gusset plate through bolts; the drilling wire steel frame and the drilling ground wire steel frame are symmetrically arranged on the two sides of the existing tower body. The through-drilling wire steel frame comprises an upper-layer through-drilling wire steel frame and a lower-layer through-drilling wire steel frame; front and rear side middle-phase tension strings are respectively arranged on the front and rear sides of the drilling upper-layer wire steel frame; front and rear side edge phase tension strings and edge phase jumper strings are respectively arranged on the front and rear sides of the drilling lower layer wire steel frame; ground wire tension strings are arranged on the front side and the rear side of the drilling ground wire steel frame respectively, a set of middle-phase jumper suspension strings are hung at the end of the outer side of the drilling ground wire steel frame, and ground wire tension strings are arranged on the front side and the rear side of the drilling ground wire steel frame respectively. According to the scheme, a newly-built line is directly drilled through an existing line through the steel frame, land occupation is not needed, and the original line does not need to be heightened.

The utility model discloses an environment-friendly and efficient sintering circular cooler low-temperature waste heat recovery system, and belongs to the technical field of waste heat recovery and utilization in the steel smelting industry. The problems that in the prior art, low-temperature waste gas of the sinter cooler is directly emptied, or simple and low-efficiency waste heat recovery is conducted, so that a large amount of heat which is not fully utilized is lost, and the energy-saving requirement is not met are solved. According to the technical key points, flue gas of the third section of the circular cooler is conveyed to the top of the low-temperature combined waste heat boiler through a pipeline and exchanges heat with a steam-water heat exchange part; a lower circulating waste gas outlet of the low-temperature combined waste heat boiler is connected with an inlet of a cooling air blower of the fifth section of the annular cooler through a pipeline, a flue gas outlet of the fifth section of the annular cooler is connected with an inlet of a cooling air blower of the fourth section of the annular cooler through a pipeline, and a flue gas outlet of the fourth section of the annular cooler is connected with an inlet of a cooling air blower of the third section of the annular cooler through a pipeline. The grate type cooling device is used for sinter cooling in the iron and steel smelting industry or other occasions needing grate type cooling of materials, and has the effects of reducing waste gas emission and improving the low-temperature waste heat recovery efficiency.

The invention discloses an adiabatic and isothermal conversion device and process matched with crushed coal pressurized gasification. Raw gas produced by smokeless lump coal through a crushed coal pressurized gasification technology is taken as a raw material; comprising a washing separator, a gas-gas heat exchanger, a purification furnace, an organic sulfur hydrolysis tower, a first conversion furnace, a medium-pressure waste heat recoverer, a second conversion furnace, a matched steam pocket, a low-pressure waste heat recoverer, a first separator, a boiler water preheater, a low-pressure waste heat recoverer, a second separator, a condensed water preheater, an ORC system, an air cooler, a third separator, a final cooler and an ammonia washing tower. The first conversion furnace is a radial heat insulation conversion furnace; and the second conversion furnace is a radial isothermal conversion furnace. According to the novel adiabatic and isothermal CO conversion process, the advantages of traditional adiabatic conversion and isothermal conversion are exerted in the conversion section of a smokeless lump coal and crushed coal pressurized gasification process adopted in coal gasification, the technological process is shortened, the system resistance is reduced, meanwhile, high-grade steam is produced as a byproduct, and stable, long-term and full-optimal operation of the system is achieved.

The present invention discloses a multifunctional ecological water supply tunnel structure and operation method for a super high rockfill dam, and belongs to the field of water conservancy and hydropower engineering. The multifunctional ecological water supply tunnel structure for a super high rockfill dam described in the present invention can form different structures in different operation stages, thereby realizing different functional roles, and the structural arrangement is simple to realize, and the construction is convenient, and it realizes the functions of ecological water supply, water storage and discharge control, diversion during the maintenance period, and diversion and flood control during the flood season, thereby achieving the purpose of one tunnel for multiple uses, and meeting the multiple needs of the super high core wall rockfill dam project, so that when having the corresponding functions, other corresponding functional tunnels required for the super high core wall rockfill dam project can be reduced, the engineering volume can be reduced, and the engineering investment can be saved.

The utility model relates to the technical field of snow protection walls, in particular to an insertable concrete rib plate type snow protection wall convenient to construct, which comprises a supporting base, a snow protection wall body is inserted on the supporting base, a plurality of concrete rib plates are symmetrically and fixedly mounted on the supporting base, a plurality of limiting grooves are formed in two side surfaces of the snow protection wall body, and the concrete rib plates are arranged in the limiting grooves. Mounting grooves are formed in the faces, close to the snow protection wall body, of the multiple concrete rib plates, limiting plates are rotationally mounted in the mounting grooves, and telescopic springs are fixedly mounted on the limiting plates. After the concrete rib plates are symmetrically arranged on the two side edges of the snow protection wall body, the snow protection wall body is supported through the concrete rib plates, the stability of the snow protection wall body is improved, and therefore the thickness of the snow protection wall body can be reduced, the construction period can be effectively shortened when the snow protection wall is used in an area lacking of rubbles, project investment is reduced, and economic and environment-friendly benefits are remarkable; and meanwhile, multi-wind-direction working conditions are coped.

The invention belongs to the field of heat absorption towers, and provides a molten salt pipeline system in a heat absorption tower and the heat absorption tower. Wherein the molten salt pipeline system in the heat absorption tower comprises a molten salt pipeline, a support hanger and a combined support steel beam; the combined supporting steel beam comprises a main beam and a supporting beam; the molten salt pipeline comprises an upper tower cold molten salt pipeline and a lower tower hot molten salt pipeline; the upper tower cold molten salt pipeline and the lower tower hot molten salt pipeline are respectively formed by connecting a plurality of pi-shaped bends end to end; the pi-shaped bend is formed by connecting two bent bends end to end; the bent bend is composed of a first vertical pipe, a first elbow, an inclined pipe, a second elbow and a second vertical pipe which are connected in sequence; the angle of the first elbow and the angle of the second elbow are both smaller than or equal to 75 degrees. The upper tower cold molten salt pipeline and / or the lower tower hot molten salt pipeline are rooted on the corresponding combined supporting steel beams through the supporting hangers; and the upper tower cold molten salt pipeline and the lower tower hot molten salt pipeline are arranged between the main beam and the cylinder wall of the heat absorption tower.

The present invention relates to a reinforced earth water retaining dam, which belongs to the field of water retaining dams in water conservancy and hydropower engineering. The present invention includes a water retaining dam base built with reinforced earth, the water-facing surface of the water retaining dam base is a slope with the top inclined downstream, a cushion layer and a slope surface concrete anti-seepage panel are arranged in sequence from the inside to the outside on the water-facing surface of the water retaining dam base, a top concrete anti-seepage panel is arranged on the top of the water retaining dam base, the top concrete anti-seepage panel and the slope surface concrete anti-seepage panel are combined into a whole, a sill is arranged at the downstream end of the top concrete anti-seepage panel, and a concrete support panel is arranged on the downstream slope of the water retaining dam base. The present invention provides a reinforced earth water retaining dam that can overflow by itself and has a simple structure, strong adaptability and low investment cost.

According to the hump type bidirectional slope ship lift, the slope ship lift is arranged according to the actual terrain, the operation efficiency of the slope ship lift is improved, and the operation energy consumption of the slope ship lift is reduced; the ship lift is a hump type dry and wet ship lift which is mainly suitable for natural slope terrains on the two sides of a high dam. The bidirectional inclined ship lift comprises an upstream inclined ship lift, a middle channel and a downstream inclined ship lift, the upstream slope ship lift and the downstream slope ship lift are connected through the middle channel; two ships can run in parallel at the same time in the middle channel. And balance weight units are arranged in the upstream inclined ship lift and the downstream inclined ship lift and are used for balancing the lifting force of the ship reception chamber.

The invention discloses an FPSO (floating production storage and offloading) general function module design method. The FPSO general function module design method comprises the following steps: S1, determining basic data for module design according to a target operation sea area; s2, planning an oil-gas treatment scale and a technological process according to the oil-gas resource condition of the target sea area; s3, dividing different types of modules according to a typical processing flow and module functions; s4, determining different grades according to the scales of different types of modules; s5, determining equipment arrangement and pipeline and electric / instrument cable planning for each module; s6, determining a budget load of the module according to the preliminary arrangement; s7, carrying out each professional design; and S8, summarizing results. According to the FPSO general function module design method provided by the invention, the general function modules are planned, classified and designed, so that the formed design result has universality and can be quickly applied to a target project, the mass construction of the general function modules is realized, the design and construction period is shortened, and the project investment is saved.

The utility model relates to a novel PTJ tower for Pi connection at the far-end side of a double-circuit line on the same tower, which comprises a tower body, an original line ground wire cross arm is arranged at the top of the tower body, and a B-circuit upper-phase lead cross arm, a B-circuit middle-phase lead cross arm and a B-circuit lower-phase lead cross arm are sequentially arranged below the original line ground wire cross arm. The B-loop upper-phase wire cross arm, the B-loop middle-phase wire cross arm and the B-loop lower-phase wire cross arm are respectively connected with a B-loop phase sequence wire B1, a B-loop phase sequence wire B2 and a B-loop phase sequence wire B3; an A-loop upper-phase wire cross arm, an A-loop middle-phase wire cross arm and an A-loop lower-phase wire cross arm are sequentially arranged below the B-loop lower-phase wire cross arm, and the A-loop upper-phase wire cross arm, the A-loop middle-phase wire cross arm and the A-loop lower-phase wire cross arm are connected with an A-loop phase sequence wire A1, an A-loop phase sequence wire A2 and an A-loop phase sequence wire A3 respectively. According to the PTJ tower, the three-phase wire cross arms for pi connection are additionally arranged, so that pi connection of lines can be completed by one base tower, and meanwhile, smooth connection of non-pi connection lines under the condition that line parameters do not change greatly is guaranteed.

The present invention provides a low-temperature full-volume tank with a low-liquid-level material extraction device, comprising an inner tank, an outer tank, an operating platform and a material extraction device capable of extracting low-liquid-level materials; the material extraction device comprises a material circulation tank and a cryogenic pump installed on the operating platform, a first venturi mixer installed at the bottom of the inner tank and corresponding connecting pipelines; the low-temperature medium in the material circulation tank can enter the first venturi mixer through the cryogenic pump and the introduction pipeline, so that the low-temperature medium in the inner tank can enter the first venturi mixer through the suction hole of the first venturi mixer under the action of pressure difference, and enter the material circulation tank through the outlet pipeline after mixing. The present invention can extract the low-liquid-level low-temperature medium in the pump column of the low-temperature full-volume tank that cannot be extracted by the submersible pump, reduce the ineffective volume of the low-temperature full-volume tank, and improve the volume utilization rate of the full-volume tank; the low-liquid-level material extraction device can also be used as a backup extraction facility other than the pump column.

The invention discloses a non-excavation up-down synchronous overlapping construction method of an underground bunched structure. The method is used for developing a building containing a basement in a safety protection area of urban rail transit and comprises the following specific steps that 1, a first working well, an overground structure reinforced concrete conversion plate, an underground structure reinforced concrete conversion plate and a second working well are sequentially arranged on one side of an existing tunnel in the length direction of the existing tunnel; 2, jacking construction of all pipe joints of the bunching structure is completed; 3, construction of the binding structure is completed, and meanwhile construction of the overground first layer of the upper structure containing the basement building is conducted; 4, basement construction in the bunching structure is completed, and meanwhile, construction, not higher than three layers, of the upper structure of the building containing the basement is conducted; and 5, all construction of the superstructure containing the basement building is completed. According to the method, the influence of large-scale development along the subway on the adjacent operation shield tunnel is reduced, the construction risk is controlled, the construction period is shortened, the project investment is reduced, and better economic and social benefits are achieved.

The present invention discloses a seepage interception structure of a tailings dam with a seepage interception wall and a precipitation well and a construction method thereof. The structure comprises a precipitation well and a vertical seepage interception wall, wherein the vertical seepage interception wall is arranged at the downstream position of the tailings dam, and a plurality of precipitation wells are arranged at the upstream of the vertical seepage interception wall. The upper part of the vertical seepage interception wall adopts a continuous wall, and the lower part of the vertical seepage interception wall adopts curtain grouting. The present invention arranges a plurality of precipitation wells upstream of the vertical seepage interception wall, and after the underground runoff part of the discharged wastewater is intercepted by the vertical seepage interception wall, the polluted groundwater is collected and returned for reuse in time through the precipitation well, effectively collecting the outflowing seepage water of the tailings dam and its surroundings, reducing the groundwater level of the vertical seepage interception wall, reducing the risk of seepage around the seepage dam shoulder or base leakage, and at the same time greatly improving the durability of the vertical seepage interception wall structure itself, and improving the service life, and the project investment is small, the application range is wide, the later maintenance is simple, the maintenance cost is low, and the environmental protection benefit, safety benefit and economic benefit are extremely significant.

The utility model belongs to the technical field of the design of the opening and closing mechanism of the stoplog gate, and particularly relates to a transfer device for the leaves of the stoplog gate. The utility model includes a water inlet hole, a stoplog gate storage area, a door machine track and a one-way door machine, and a trolley track is arranged on the side area of the water inlet hole and perpendicularly intersects with the door machine track, a transfer trolley is installed on the trolley track, and the transfer trolley is equipped with a power mechanism for driving the trolley to reciprocate along the trolley track; a load platform is arranged on the transfer trolley through a lifting mechanism, and the load platform is used for transferring the stoplog gate leaves; the trolley track has a first end arranged close to the door machine track and a second end arranged away from the door machine track, the stoplog gate storage area is arranged at the second end of the trolley track, and the stoplog gate storage area is arranged with storage platforms for storing the stoplog gate leaves on both sides of the trolley track. The utility model can conveniently realize the transfer of the stoplog gate leaves in the vertical direction of the one-way door machine running track.

The present invention relates to an engineering layout method for optimizing the confluence area of ​​a waterway based on particle tracking, and belongs to the technical field of inland navigation, discharge and energy dissipation. Find out the source of water flow in the confluence gate area and formulate a water flow combination plan; construct a three-dimensional water flow simulation model to ensure the accuracy and applicability of the model; construct a particle convection-diffusion model and set special boundary conditions; reveal the law of water flow movement and find out the reasons for the velocity distribution; and arrange energy dissipation and diversion engineering facilities based on the law of water flow movement. The present invention realizes the accurate simulation of the water flow movement process in different areas under different water flow combination conditions, the water flow movement route is clear and definite, and the flow state and velocity distribution are vivid and intuitive; the energy dissipation and diversion facilities have obvious interactions with the water flow, which is convenient for optimizing the location and scale of energy dissipation and diversion projects, achieving a better engineering combination, improving calculation efficiency, and saving engineering investment.

The utility model provides an inverted-T-shaped flap gate. The inverted-T-shaped flap gate comprises a gate plate, two rotating shafts, no more than two shaft driving mechanisms, two gate piers and two supporting bearings, the gate pier is provided with equipment mounting cavities, and a shaft driving mechanism is arranged in at least one equipment mounting cavity; the front view structure of the gate plate is in an inverted-T shape, and the gate plate comprises a rectangular main gate leaf and two side convex gate leaves arranged on the two sides of the upper portion of the main gate leaf correspondingly. One end parts of the two rotating shafts are fixedly and symmetrically connected with the two sides of the vertical middle part of the gate plate respectively; and the other end parts of the two rotating shafts respectively penetrate through the side surfaces of the two gate piers so as to enter equipment mounting cavities of the gate piers, and are supported on the gate piers through supporting bearings which are in one-to-one correspondence. The utility model further provides a navigation sluice which is transversely arranged in the navigation sluice hole and comprises a plurality of groups of inverted-T-shaped flap gates which are arranged side by side. The water retaining device can ensure water retaining safety, reduce operation energy consumption and engineering investment, and improve safe operation reliability of the gate.