3356 results about "Drainage ditch" patented technology

The invention discloses a tunnel deep-buried drainage ditch rapid blasting excavation method based on vertical drilling, which comprises the following steps: step 1, detecting the geology in front of a tunnel by using vertical drilling coring, geological radar and TSP seismic wave technology, and constructing a three-dimensional model; 2, generating an asymmetric hole net layout based on a geological model and AI, and setting a drilling-free vibration isolation belt; the design of dense inside and sparse outside is adopted, and vibration propagation is blocked; thirdly, a three-stage air spacer is arranged at the bottom of the blast hole, segmented charging is implemented, the explosive energy release time is prolonged, and the single-segment explosive quantity peak value is reduced; fourthly, an electronic detonator is adopted for millisecond detonation, and peak vibration is weakened through the waveform superposition offset effect; 5, arranging fiber grating sensors in the tunnel, collecting data in real time and transmitting the data to the cloud AI platform; dynamically adjusting parameters based on the monitoring data; and 6, evaluating a blasting effect through a three-dimensional laser scanner, generating an evaluation report in combination with data, updating a BIM model database, and continuously optimizing an AI algorithm.

A system for capturing and destroying hair and waste within a commercial shower drain includes a drain basket placed in the drain and a chemical blend that is poured into the drain basket. The drain basket captures hair and waste that is washed down shower drains. The chemical blend is poured into the drain basket to neutralize the captured hair or waste. The result is a clear drain and clear plumbing, with minimal manual labor. The drain basket does not require removal because the hair and waste are neutralized within the drain basket before a clog can develop. The chemical blend is strong enough to neutralize significant quantities of waste within minutes and is safer for both users and the plumbing systems treated than conventional drain cleaning chemicals.

The invention provides a power grid water and soil conservation method and system based on three-dimensional simulation, and relates to the technical field of power grid water and soil, and the method comprises the steps: building a power grid project three-dimensional scene model based on terrain, soil, vegetation and hydro meteorological data, and simulating water and soil loss risk distribution. Then, a water and soil conservation facility layout scheme including intercepting and draining ditches, a grit chamber, a vegetation recovery zone, a retaining wall and the like is established; a multi-objective optimization algorithm is adopted, the minimum construction cost and the optimal water and soil conservation effect are taken as objectives, the position, specification and number of facilities are optimized, and a plurality of candidate schemes are obtained. And finally, simulating water and soil loss processes under different rainfall working conditions based on computational fluid mechanics, selecting a scheme with the highest comprehensive score as a final optimization scheme in combination with a fuzzy comprehensive evaluation method, and outputting a three-dimensional construction layout diagram and a technical parameter list. The water and soil loss risk in power grid engineering construction and operation can be effectively reduced, the engineering cost is saved, and the water and soil conservation effect is improved.

The invention discloses a saline-alkali soil improvement control analysis method and system based on digital twinning, and belongs to the technical field of saline-alkali soil improvement control analysis, and the method comprises the steps: firstly obtaining and preprocessing the terrain, soil permeability and precipitation data of saline-alkali soil, predicting a retention water accumulation region through employing a support vector machine algorithm, and estimating the amount of retained water by using a Kriging interpolation method. Then, the dynamic change process of the retained water is simulated through an artificial neural network algorithm, the information is integrated into a digital twinborn model, and visualization of spatial distribution and dynamic change of the retained water is achieved. And finally, on the basis of retained water information in the digital twin model, optimizing the layout and depth of the drainage ditch, selecting proper drainage materials and modes, and forming a complete drainage design scheme. According to the method, accurate prediction, dynamic simulation and visual analysis of the retention water of the saline-alkali soil are realized through a method of combining data driving and an intelligent algorithm, and a scientific basis and decision support are provided for improvement of the saline-alkali soil and agricultural production.

Disclosed in the present invention are an underground gas storage device for compressed air energy storage and a construction method therefor. The underground gas storage device for compressed air energy storage comprises an underground gas storage cavern, the underground gas storage cavern being formed of a plurality of underground gas storage cavern sections, wherein a connecting tunnel is provided between two non-adjacent underground gas storage cavern sections, a vertical shaft is provided at the top end of the connecting tunnel, and a sealing plug is provided in the intersection between the vertical shaft and the connecting tunnel; a gas intake pipeline and a gas output pipeline are provided in the vertical shaft, and a sump is provided on an outer bottom wall of the connecting tunnel; a first drainage ditch is provided around the top face edge of the sealing plug in the vertical shaft, and the first drainage ditch is in communication with the sump; and a drainage blind pipe assembly is provided on the periphery of the underground gas storage cavern sections, and the drainage blind pipe assembly is in communication with the sump via a second drainage ditch arranged at the outer bottom wall of the connecting tunnel. The present invention can achieve one-time excavation forming, without transformation and with relatively low construction difficulty, and can effectively reduce the influence of underground water on the underground gas storage cavern during a construction period, operation period and maintenance period.

The invention discloses a tunnel apparent disease detection method. The method comprises the following steps: collecting three-dimensional point cloud data in a tunnel through a moving vehicle carrying a three-dimensional laser scanner; calculating a depth value according to a Z value of the three-dimensional point cloud data, and mapping the depth value to a gray scale range of 0-255 to obtain a gray scale image; identifying a gray value abrupt change area in the gray image through an edge detection algorithm to obtain an abrupt change crack area on the surface of the tunnel lining; performing gray segmentation on the gray value mutation region to obtain a water leakage region, and performing connected domain analysis on the water leakage region to obtain the area of the water leakage region; identifying a gray value mutation region according to a region growing algorithm to obtain a lining surface layer layering region; according to a template matching method, a drainage ditch area in the gray level image is identified; and marking tunnel cracks, water leakage, lining surface layer peeling and drainage ditch damage areas. According to the invention, the three-dimensional laser scanning and image processing technology is adopted to detect the apparent diseases of the tunnel, so that the disease maintenance efficiency is improved.

The invention belongs to the technical field of rock-soil side slope protection, and particularly relates to an expansive soil side slope flexible ecological comprehensive supporting system which comprises an intercepting ditch, a vegetation protection layer, a composite waterproof layer, flexible anchor rods, water seepage and drainage pipes, cultivation and planting soil, a drainage ditch, a backfill soil layer, a step-shaped slope surface, a slope surface and slope protection vegetation. The slope surface is excavated into a step-shaped slope surface, a composite waterproof layer, expansive soil backfill soil, a vegetation protection layer and cultivation and planting soil are sequentially arranged on the step-shaped slope surface from bottom to top, and slope protection vegetation is planted and formed on the cultivation and planting soil; the composite waterproof layer is fixed to the step-shaped slope face through the flexible anchor rods. The vegetation protection layer and the slope protection vegetation together reinforce the shallow soil body, and the composite waterproof layer and the flexible anchor rod play a role in absorbing and relieving the received expansive force. The method has an ecological greening effect, has the functions of common supporting of the shallow surface layer and the deep layer of the expansive soil slope, flexible reinforcement and expansion reduction and allowable generation of a small amount of deformation, is simple in construction and high in efficiency, and can realize long-term stability of the shallow surface layer and the deep layer of the expansive soil slope.

The utility model discloses a combined dewatering and drainage system suitable for treating stagnant water on the upper layer of a strip mine side slope. An inclined drainage hole (1), a vertical drainage hole (2) and a drainage ditch (3) are combined to form the combined dewatering and drainage system. Sleeves are arranged in the inclined drainage hole (1) and the vertical drainage hole (2) within the depth of a fissure zone, a hard permeable pipe penetrates through the sleeves and extends into the inclined drainage hole (1) and the vertical drainage hole (2), and a water stop plug is arranged in an annular gap between the hard permeable pipe and the wall of the inclined drainage hole (1) and the wall of the vertical drainage hole (2). And a plurality of water permeable holes are formed in the hard water permeable pipe below the water stop plug in the vertical drainage hole (2) and the hard water permeable pipe within the water stop plug in the inclined drainage hole (1). The water pressure near the water-resisting layer is reduced through the continuous gravity drainage effect, the rainfall cost is reduced, the erosion influence of water flow on slope cracks is avoided, and the overall stability of the strip mine slope is improved.

The invention discloses a mountain tunnel waterproof and drainage structure convenient to maintain and replace and a construction method.The waterproof and drainage structure comprises a primary support, a secondary lining, detachable water guiding and drainage structures and a tunnel bottom drainage structure, an annular groove is reserved in a secondary lining construction joint, and the water guiding and drainage structures are intensively arranged; the water guiding and draining structure comprises a water draining pipe, an annular water draining groove, a water-wave-proof steel pattern plate, a heat preservation material and a decorative plate which are sequentially arranged from outside to inside. The bottom drainage structure comprises transverse drainage ditches and a central drainage ditch. According to the tunnel waterproof and drainage structure, the underground water behind the tunnel lining is basically drained through the capacity of the water drainage pipe for actively reducing the underground water, the underground water is prevented from acting on the supporting structure, permeation of the underground water into the supporting structure is reduced, the construction method is simple and convenient, and the construction quality is easy to control; during tunnel operation and maintenance, desilting, maintenance and replacement are facilitated, and the durability of the tunnel is improved.

The invention relates to the technical field of foundation pit construction, in particular to a foundation pit dewatering system and a foundation pit dewatering arrangement method.The foundation pit dewatering system comprises a first-stage platform, a second-stage platform and a third-stage platform which are arranged around a foundation pit, and the elevations of the first-stage platform, the second-stage platform and the third-stage platform are sequentially decreased; a plurality of first dewatering deep wells are arranged on the first-stage platform, a plurality of second dewatering deep wells are arranged on the second-stage platform, and a plurality of third dewatering deep wells are arranged on the third-stage platform; drainage ditches and / or water collecting wells are dug in the base of the foundation pit; digging a drainage channel at the top of the foundation pit; sewage in the first precipitation deep well, the second precipitation deep well, the third precipitation deep well, the drainage ditch and / or the water collecting well is discharged into the drainage channel and discharged into the sea through the drainage channel. According to the foundation pit dewatering system, through scientific arrangement of the graded dewatering deep wells and efficient cooperation of drainage facilities, the limitation of a traditional dewatering technology under the tidal influence and complex geological conditions is overcome, the construction safety, reliability and efficiency are improved, and the stability of a foundation pit is enhanced.

The three-dimensional ecological protection structure comprises anchor rods, planting boxes, planting pits, steel wire ropes, water intercepting plates and sashes, wherein the sashes are formed in the mode that transplanted fresh adult straight forests are attached to the horizontal slope face and incline upwards. The anchor rods are vertically buried at the slope toe in rows, and the planting pits are located between the anchor rods and a slope toe drainage ditch; the planting boxes are divided into slope surface A type planting boxes and slope toe B type planting boxes, the B type planting boxes are located in slope toe planting pits, and the A type planting boxes are sequentially and tightly arranged in rows from the slope toe anchor rods to the slope surface in the slope direction to form a planting belt; an opening is formed in the free side wall of the A-type planting box, transplanted fresh adult straight forest trees are planted into the A-type planting box from the opening and obliquely upwards attached to the horizontal slope face, the adult forest trees between every two adjacent rows of planting belts grow oppositely and obliquely upwards by a certain angle, and therefore fresh forest tree lattices are formed on the slope face. The landscape trees and landscape trees vertically planted in the slope toe B-type planting box jointly play a role in three-dimensional ecological slope protection. According to the structure, the continuity of ecological slope protection and the safety of slope engineering can be achieved at the same time.

The utility model discloses an efficient drainage ditch excavation device based on an adjustable shaping excavator bucket, and relates to the technical field of municipal engineering and hydraulic engineering construction. Different design requirements are met by hydraulically adjusting the size of the bucket, the bucket body is formed at a time, manual finishing and template use are reduced, the construction cost is reduced by more than 20%, the excavation precision is controlled by combining GPS positioning and real-time measurement, the groove longitudinal slope and elevation precision is ensured, and the construction efficiency is improved. One-time forming of the drainage ditch and synchronous outward transportation of spoil are achieved, and site accumulation is avoided. According to the scheme, the construction efficiency and quality are remarkably improved, and the method is suitable for municipal drainage engineering under soil texture and strong weathered rock geological conditions.

The utility model discloses a field structure arrangement for field planting of herba epimedii, which belongs to the technical field of field structures and comprises a hillside, a plurality of downhill ridges are arranged on the inclined surface of the hillside, drainage ditches are arranged at the bottom of the inclined surface of the hillside and positioned below the downhill ridges, and the downhill ridges are arranged on the inclined surface of the hillside. The inclined faces of the multiple hillsides are further provided with operation channels, middle grooves are formed in the top faces of the operation channels, and the middle grooves comprise a plurality of triangular grooves and a plurality of water storage grooves. By reasonably adjusting the field planting structure, accumulated water in the plum rain season is reduced, soil hardening is prevented, diseases and insect pests are reduced, the moss growth environment is damaged, the manual moss removal frequency and moss removal agent use are reduced, and the purposes of reducing pesticide and chemical fertilizer use, saving labor force and improving benefits are achieved.

The utility model provides track inspection equipment. The track inspection equipment comprises a vehicle body, and a steel rail detection device, a fastener detection device, an evacuation platform detection device, a ballast bed detection device, a drainage ditch detection device, a synchronous positioning system and a main control unit which are arranged on the vehicle body, wherein the steel rail detection device, the fastener detection device, the evacuation platform detection device, the ballast bed detection device and the drainage ditch detection device are all in communication connection with the main control unit, and the main control unit is in communication connection with the synchronous positioning system. According to the utility model, steel rails, fasteners, evacuation platforms, ballast beds and drainage ditches around the vehicle body are detected according to image information, the detection content is more, the accuracy is high, the daily public work detection content of urban rail transit is basically covered, the labor intensity is effectively reduced, and the detection efficiency is high.

The high-pressure water cutting device comprises a [-shaped protective fence frame, an inlet and outlet is formed in the front side of the protective fence frame, a rectangular annular drainage ditch is formed in the position, on the inner side of the protective fence frame, of the ground, and a robot is arranged in the middle of the position, on the inner side of the drainage ditch, of the ground; the tail end of a mechanical arm on the robot is connected with a water jet cutter and a flushing spray head, the robot is used for controlling the cutting track of the water jet cutter, and meanwhile the flushing spray head moves along with the cutting track of the water jet cutter to flush the cutting part; longitudinal traveling rails are arranged in the protective fence frames on the two sides of the robot correspondingly, and the traveling rails are fixed to the ground and extend out of the entrances and exits of the protective fence frames. A carrying trolley is arranged on the travelling crane rail, and a workpiece clamping table is fixedly connected to the carrying trolley. According to the high-pressure water cutting device, the robot is adopted to control the water jet to operate, cutting is convenient, and precision is high; and a corresponding universal die casting clamping table which is convenient and stable in clamping is designed.

A strap-supported grate section in a surface-supported drain grate system includes a drain grate; at least one inner strapping member having a middle portion affixed on a top facing inner section of the drain grate; and two anchor strapping members, each of which has a middle portion that is affixed on a top facing edge of the drain grate. Outer portions of each anchor strapping member and outer portions of the inner strapping member are not affixed to the drain grate. The outer portions of the anchor strapping members and the inner strapping member are surface mountable on a surface adjacent to a drain structure in which the strap-supported grate section is inset to provide structural support for the strap-supported grate section.

The invention discloses a novel flexible ecological drainage ditch structure and a construction method thereof, belongs to the technical field of drainage ditch construction, and solves the problems of serious deformation and cracking of a traditional concrete drainage ditch. The structure specifically comprises an anti-corrosion layer, a drainage layer and an anti-seepage layer. The seepage prevention layer is arranged at the bottom of the drainage ditch, the drainage layer is laid on the seepage prevention layer, and the anti-corrosion layer is laid on the drainage layer. According to the drainage ditch, the innovative design of combining the anti-corrosion layer, the drainage layer and the anti-seepage layer is adopted, so that a lower seepage body is effectively drained, the ditch body strength is improved, the basic requirements of confluence, quick drainage and seepage prevention of the drainage ditch are met, and the overall shear resistance and erosion resistance of the drainage ditch are improved; the construction method is suitable for construction of loose accumulation body slopes such as slide slag accumulation body slopes, waste slag accumulation bodies and mine dumping sites; the method has the advantages of being high in plasticity, high in terrain adaptability, high in environment flexibility, good in structure flexibility and the like.

The invention discloses a design method of a dam body for black rainwater flood drainage in a flood drainage ditch in a mining area, which comprises the following steps of: acquiring historical data of a local mining area, including a flood level H and a flood drainage ditch width L; the dam body is semicircular and V-shaped, the radius of the semicircular dam body or the side length of the V-shaped dam body is determined according to the width L of the flood drainage ditch, and the diameter of the semicircular dam body is equal to the width L of the flood drainage ditch; the calculation formula of the outflow area S1 of the flood drainage ditch when no dam body is arranged is S1 = L * H, the height of the false dam body is h, the outflow area of the flood drainage ditch when the dam body is arranged is S2, and when the outflow area S1 of the flood drainage ditch when no dam body is arranged is the same as the outflow area S2 of the flood drainage ditch when the dam body is arranged, it is regarded that the arrangement of the dam body has no influence on the flood discharge capacity of the flood drainage ditch; under the condition that the outflow area is not changed, the height of the dam body can be obtained; according to the method, the height of the dam body can be determined according to the flood level of the mining area, normal flood drainage is ensured under the condition that the flood drainage amount before and after the dam body is arranged is not changed, and early-stage black rainwater of the mining area can be intercepted.

The utility model provides a large-slope planting roof anti-skid structure which is characterized in that reinforced concrete retaining walls arranged in a quincunx shape are arranged outside a large-slope roof structural slab, and pebble drainage ditches and L-shaped steel plates are arranged on the upper sides of the reinforced concrete retaining walls. A heat preservation layer, a reinforced concrete face plate, a mortar leveling layer, a waterproof layer, a puncture-resistant waterproof layer, a mortar waterproof protection layer, a fine aggregate concrete waterproof protection layer, a drainage plate, an isolation layer and a planting soil layer are sequentially arranged on the outer side of a structural plate of the reinforced concrete retaining wall and the outer side of a structural plate of the large slope roof. A mortar leveling layer, a waterproof layer, a puncture-resistant waterproof layer, a mortar waterproof protection layer, a drainage plate, an isolation layer and a planting soil layer are sequentially arranged on the top of the reinforced concrete retaining wall. An anti-skid assembly is installed in the planting soil layer, the anti-skid assembly is provided with an anti-skid lattice assembly and a connecting component, and the anti-skid lattice assembly is provided with anti-skid lattices and tying belts; according to the anti-slip structure, the steel consumption is reduced, and the overall anti-slip capacity of the joint is improved.

The present application discloses a trenching device for a ditch excavator for a roadbed drainage project, and belongs to the technical field of equipment for roadbed drainage projects. A trenching device for a ditch excavator for a roadbed drainage project comprises: a mounting frame, a trenching shovel is mounted on one side of the mounting frame, a compaction mechanism is mounted on the other side of the mounting frame, the compaction mechanism comprises a driving frame, a compaction plate is mounted on the outer side of the driving frame, and a pushing mechanism is also mounted on the mounting frame, and the pushing mechanism is used to drive the two driving frames to move linearly in opposite directions. The technical solution of the present application is provided with a compaction plate, a driving frame and a pushing mechanism. When the drainage ditch is dug with the trenching shovel, under the action of the pushing mechanism, the driving frame will drive the compaction plate to move linearly, compact the two sides of the excavated drainage ditch, prevent loose stones, soil, etc. from falling randomly, and help to ensure the excavation effect of the drainage ditch.

The invention provides a dredging and blocking combined salinized soil roadbed novel composite liner separation layer and a roadbed structure. The composite liner separation layer comprises a first layer of non-woven geotextile, an upper layer of three-dimensional geotextile drainage network, a second layer of non-woven geotextile, a polymer modified bentonite particle layer, a third layer of non-woven geotextile, a lower layer of three-dimensional geotextile drainage network and a fourth layer of non-woven geotextile which are sequentially arranged from top to bottom; the roadbed structure comprises a pavement structure layer, a roadbed, a composite liner partition layer and an embankment which are sequentially laid from top to bottom, and slope protection ways and drainage ditches are arranged on the two sides of the roadbed structure. Through the bentonite particle impermeable layer in the composite liner separation layer, infiltration of surface water can be prevented, and rising of capillary water and migration of water and salt under the action of temperature gradient can also be blocked; slope protection and drainage ditches are designed on the two sides of the roadbed, smooth salt and water drainage of the roadbed is guaranteed, and the risk of roadbed settlement caused by migration and uneven distribution of water and salt in the salinized soil roadbed is reduced.

The invention discloses a composite metal roof system and a construction method thereof. The construction method comprises the following steps that firstly, a roof truss supporting structure is constructed, wherein the roof truss supporting structure is welded to the top of a main body structure; and secondly, a main purline, a secondary purline, a bottom plate layer, a sound absorption layer, a supporting layer, a vapor barrier layer, a heat preservation layer and a waterproof layer are sequentially constructed on the top of the roof truss supporting structure and located around the daylighting roof structure to be constructed, an inner connecting keel is arranged on the inner side of the heat preservation layer in the annular direction, and an outer connecting keel is arranged on the outer side of the heat preservation layer in the annular direction. And thirdly, skylight keels are constructed. And 4, constructing an inner drainage ditch, an outer drainage ditch and a radial drainage ditch. And 5, constructing a fixed glass window and an openable glass window. And 6, the waterproof layer and the facing layer are sequentially constructed until the construction is finished. The technical problems that a traditional steel truss roof structure is complex in construction process, leakage risks exist, and heat preservation and sound insulation performance is poor are solved.

The invention relates to the technical field of stone side slope treatment, in particular to a side slope treatment construction method which comprises the following steps: S1, side slope investigation: carrying out geological investigation on a side slope area; s2, a slope stress model is established, a complete design scheme is formulated, and the project amount, the construction process and the technical requirements are determined; s3, rock excavation is conducted, stepped layered excavation is adopted, and slope cutting and leveling are conducted on the side slope; s3, construction of a drainage system: excavating an intercepting ditch at the top of the slope and excavating a drainage ditch at the toe of the slope; and S4, anchoring construction. The method has the effect of improving the stability of the side slope.

A three-dimensional parameterization design method for a side slope water interception and drainage ditch mainly comprises the steps that water interception and drainage objects are arranged on a three-dimensional side slope, and the water interception and drainage objects comprise two sub-objects of an axis and sections of different forms; drawing a ditch axis in the three-dimensional space; setting water interception and drainage section attributes; setting an axis control point, and associating section attributes; calculating a project amount according to the axis and the association attribute; and generating a two-dimensional profile map according to the interception and drainage parameters and the three-dimensional geological information. According to the method, a unique method of coupling a three-dimensional axis graph and a section parameter is adopted, the problem that the difference between the section size and the axis length of the ditch is too large in a conventional three-dimensional design is avoided, and the drawing quality of the ditch is kept good during sectioning; a parameterization + non-parameterization coupling sectioning technology is adopted, the problem that a BIM parameterization model and a GIM information model are difficult to integrate on the aspect of sectioning drawing based on a three-dimensional model is solved, and rapid drawing of a two-dimensional section of a slope intercepting and draining ditch on the basis of the three-dimensional model is achieved.

The invention relates to the technical field of basement buildings, and provides a basement waterproof structure which comprises a drainage ditch, a filtering grid plate and a drainage pipeline, the filtering grid plate is arranged at an opening of the drainage ditch, and one end of the drainage pipeline communicates with the drainage ditch to discharge rainwater outwards; a standby cavity is formed in the bottom of the drainage ditch and connected with a standby pipeline used for discharging rainwater outwards, a first communication groove communicated with the standby cavity is formed in the bottom wall of the drainage ditch, a cover plate used for opening and closing the first communication groove is hinged to the interior of the drainage ditch, and the cover plate is normally closed in the first communication groove; a buoyancy piece is arranged between the drainage ditch and the cover plate, and when the rainwater level in the drainage ditch rises to the opening of the drainage ditch, the buoyancy piece drives the cover plate to turn over so as to open the first communication groove. According to the basement waterproof structure, the good drainage performance of the drainage ditch can be kept, and the possibility that a basement is flooded is reduced.

The invention discloses a farmland drainage ditch remote sensing image semantic segmentation method based on an improved VM-UNet model, and the method comprises the steps: carrying out the improvement of a VM-UNet model, and in a decoder, carrying out the processing of features outputted by a third coding layer and a first coding layer through a SENet attention mechanism, and inputting the processed features into the decoder through jump connection; features output by the second coding layer and the Patch Embedding layer are subjected to multi-scale attention aggregation and then are input into the decoder through jump connection; according to the method, spatial features are aggregated through multi-scale convolution and a spatial attention mechanism, the resolution capability of the model for a complex ditch background is enhanced, semantic information related to a drainage ditch is enhanced through a channel weighting mechanism, and the influence of confusion backgrounds on a segmentation result is reduced.

The utility model discloses a beam yard rainwater collection and box girder maintenance water recycling device, which relates to the technical field of water resource recycling and comprises a water collection system and a spraying system. The water collecting system comprises drainage ditches which are arranged on the ground on the two sides of the pedestal and are inclined to facilitate collection and drainage of wastewater, and protrusions used for preliminarily filtering impurities in the wastewater are arranged at the bottoms of the drainage ditches; the outflow end of the drainage ditch is connected with a reservoir which is positioned below the ground level and is used for collecting wastewater flowing out of the drainage ditch and carrying out layered purification on the wastewater; the spraying system comprises a spraying pipeline which is arranged on the side face of the pedestal and extends to the position above the pedestal, a plurality of spraying openings capable of adjusting the spraying direction are formed in the side, facing the pedestal, of the spraying pipeline, a water supply hose communicating the water storage tank with the spraying pipeline is arranged at the bottom of the water storage tank, and temperature and humidity sensors electrically connected with the spraying openings are arranged on the spraying pipeline. Therefore, the wastewater is recovered and recycled for multiple times.

The invention provides a phase change-moisture absorption and drainage composite roadbed structure in a seasonal frozen region and an intelligent regulation and control method, and relates to the technical field of roadbed design and renovation. The roadbed structure is characterized in that a plurality of gradient phase change material layers are arranged on the top surface of a roadbed surface layer; the multi-layer gradient phase change material layer, the high moisture absorption and drainage geotextile layer and the drainage pipe system are arranged from top to bottom; the phase change temperature intervals and the phase change latent heat of the phase change layers in the multiple gradient phase change material layers are different; the high moisture absorption and drainage geotextile layer is used for guiding water in the soil body into the drainage pipe system; the drainage pipe system is of a porous structure with the inclination angle within the set angle range and is used for guiding water in the soil into the drainage ditch. And the intelligent regulation and control system is used for dynamically regulating the thermal resistance of each phase change layer and the opening degree of the drainage pipe. According to the invention, the time of the roadbed in a relatively stable physical state can be prolonged, so that the purpose of preventing and treating winter frost heaving, frost boiling and mud rising in a spring melting period and other diseases caused by temperature change of the roadbed in severe cold areas is achieved.

The utility model discloses an outdoor aproll anti-sedimentation structure, which relates to the technical field of building construction, and comprises a construction wall body, and through the arrangement of insertion holes and longitudinal steel bars, when aproll construction is carried out at the joint part of the building wall body, in order to improve the quality of the aproll construction at the edge of the building wall body, the construction process is simple; in order to reduce the condition that the surface is aged and cracked after apron construction, a linear insertion hole can be formed in the surface of a wall body, longitudinal steel bars are inserted into the insertion hole, meanwhile, transverse steel bars are bundled with the longitudinal steel bars through iron wires, so that a grid shape is formed between the longitudinal steel bars, PVC pipes are placed on the surfaces of the grid-shaped steel bars, and the longitudinal steel bars and the transverse steel bars are bundled through the PVC pipes. And all-directional pouring is conducted through concrete, after initial setting of the concrete, the PVC pipe is taken away, a drainage ditch is formed in the surface of the concrete, the drainage ditch is connected with an outdoor rainwater well, the effect of fully draining rainwater of the eave is achieved, and the effect of improving the water dispersing construction quality of the edge of the wall is achieved.

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.