2224 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.

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 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 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.

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 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.

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 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.

The invention discloses a breathable anti-seepage structure layer suitable for roadbed slope protection. The breathable anti-seepage structure layer comprises a coarse grain layer, a fine grain layer, plant straw and a drainage ditch. The coarse-grained layer is laid on the roadbed slope, the fine-grained layer is laid on the coarse-grained layer, the plant straws are inserted into the fine-grained layer and are inserted into the interface of the fine-grained layer and the coarse-grained layer, and the drainage ditch is arranged at the position where the toe of the roadbed slope is in contact with the interface of the fine-grained layer and the coarse-grained layer; according to the invention, through two special methods of inserting the plant straws into the fine grain layer and doping the expansion material particles into the coarse grain layer, high air permeability and ultra-strong seepage prevention of the structural layer are realized, the problems of'pot cover effect 'and capillary retardation failure are effectively prevented, and the method has good economic, environment-friendly and social benefits.

The invention provides a mine storage yard drainage system which comprises a plurality of main ditches, a grit chamber, a grating drainage ditch and a water collecting device, the main ditches are arranged at the position, close to a material pile, in a storage yard, and the main ditches are filled with gravel materials; the grit chamber is arranged at the downstream of the main ditch, the grating drainage ditch is arranged outside the material pile and close to the edge of the storage yard, the grating drainage ditch is arranged at the downstream of the grit chamber, and the water collecting device is arranged at the downstream of the grating drainage ditch. Rainwater or sewage can be discharged out of the storage yard after being filtered and precipitated in sequence, and rainwater or sewage can be conveniently collected. The gravel materials are filled in the main ditch, the problem that the materials enter the main ditch and are brought out of a storage yard can be solved, the problems that after machines such as a front loading machine repeatedly work for a long time, the cover plate is crushed, the cover plate deforms or the materials block the cover plate can also be solved, investment is saved, the structure is simple, construction is easy, maintenance is convenient, and the drainage performance is good.

The invention belongs to the technical field of tunnel terrestrial heat utilization in alpine regions, and particularly discloses a terrestrial heat three-dimensional heat preservation and ice melting system suitable for a cable fire ditch and a drainage ditch of an alpine deeply-buried highway tunnel. The terrestrial heat three-dimensional heat preservation and ice melting system comprises a terrestrial heat taking subsystem, a terrestrial heat pipe heat preservation result, a heat exchange unit and a heat supply subsystem. The terrestrial heat taking subsystem is connected with the heat exchange unit through a transmission pipeline, the heat supply subsystem is connected with the heat exchange unit through the terrestrial heat pipe heat preservation subsystem, and the terrestrial heat taking subsystem is located in a terrestrial heat source area which is about two kilometers away from a tunnel entrance. The system transmits heat to the cable trench and the drainage ditch through circulating high-temperature fluid, so that the temperature of the regions is always kept above a freezing point, and water in the cable, the fire-fighting pipeline and the drainage ditch is prevented from being frozen. The system has the advantages of being efficient, energy-saving, clean, environment-friendly, convenient to construct and the like, and meets the anti-freezing requirements of tunnel cables, fire-fighting pipelines and drainage ditches in the high and cold environment.

The utility model provides a vacuum concealed pipe circulating water salt elimination system which comprises a plurality of concealed pipes which are respectively connected with a water conveying pipe through a water collecting pipe; the concealed pipe comprises a pipe body, and a plurality of water collecting holes are formed in the pipe body; each water collecting pipe is provided with a vacuum negative-pressure drainage device, the water conveying pipe is connected with a salt washing water treatment device, and the water conveying pipe is provided with a water suction pump; a water outlet pipe is further connected to the salt washing water treatment device, and the water outlet pipe is connected with an irrigation leaching water distribution device used for leaching soil; the washing brine treatment device comprises an electrodialysis treatment unit, the front end of the electrodialysis treatment unit is connected with a reservoir, the rear end is connected with a fresh water tank, and a flowmeter is arranged on a pipeline for connecting the electrodialysis treatment unit and the reservoir; the fresh water pool is connected with the water outlet pipe, the reservoir is connected with the water pipe, the fresh water pool is further provided with an overflow pipe, and a drainage port end of the overflow pipe extends to the drainage ditch. According to the invention, the salt elimination efficiency is greatly improved, the investment cost of concealed pipe laying is reduced, the water is saved, and water pollution is prevented.

The invention relates to the technical field of permafrost region subgrade protection, and discloses a subgrade moisture accumulation prevention method and structure and a heating temperature calculation method.The heating temperature calculation comprises the steps that the sum of evaporation power and precipitation difference values of months with the monthly average temperature larger than 0 DEG C is obtained; obtaining a first daily water seepage amount; calculating to obtain surface evaporation loss according to the month with the monthly average temperature greater than 0 DEG C, the sum of the difference values of the evaporation power and the precipitation, the first daily water seepage amount and parameters of the moisture accumulation prevention structure, and calculating to obtain saturated vapor pressure for heating the surface of the drainage ditch in the moisture accumulation prevention structure according to the surface evaporation loss; and calculating the heating temperature by using the saturated vapor pressure. By collecting, blocking and evaporating freeze-thaw water on the mountainside or the slope side, the water accumulation prevention structure relieves the problem of serious water accumulation on the roadside, guarantees the road stability, prevents roadbed diseases, prolongs the service life of the road, and assists high-quality construction of road engineering in cold regions.

The invention relates to the technical field of environment management data analysis, and discloses a farmland drainage ditch ecological restoration evaluation method and system. The method comprises the steps of obtaining drainage ditch multi-parameter ecological monitoring data, calculating a farmland-ditch interface permeability index, establishing a response delay kinetic equation to solve a time delay coefficient, and generating a restoration effect evaluation result by applying a time sequence tracking algorithm. According to the method, the problem that farmland drainage ditch ecological restoration assessment lacks interface permeability quantitative analysis, time delay modeling and spatial distribution identification is solved, and the scientificity and the accuracy of restoration effect assessment are improved.

The invention relates to a pheretima bombycis farm, and belongs to the technical field of earthworm breeding. The problem that earthworm suffocation death is caused by cross contamination of pathogenic microorganisms and unsmooth drainage due to mixing of functional areas of a traditional farm is solved. The layout of the farm is specifically as follows: a raw material pretreatment and storage area provided with a fermentation tank is arranged in the upwind direction of a site entrance; a core breeding production area is arranged in the center of the field, the interior of the core breeding production area is divided into an earthworm breeding area, a breeding area and a fattening area according to breeding stages, and mechanical channels are arranged in the areas and are of a ridge type structure; arranging an annular drainage ditch along the boundary of the field, and communicating the furrow with the annular drainage ditch by gradient; a finished product treatment and storage area containing an airing field is arranged in the downwind direction of the field exit; an isolation belt is arranged on the periphery, a management and auxiliary area containing a tool room is arranged at an entrance, and a feces treatment area containing a sedimentation tank is arranged in the downwind direction; the hardened main road is connected with all the functional areas, and the branch is communicated with the breeding district. According to the scheme, pollution source isolation and efficient drainage are achieved, and the method is mainly used for improving the earthworm survival rate and breeding benefits.

The invention provides a soil improvement and saline-alkali water spray irrigation method suitable for a saline-alkali beach. The method comprises the following steps: reclamation and field building, dike building and tide blocking: building and enclosing a mud flat area needing reclamation and planting in the earlier stage to prevent further erosion of saline-alkali water; constructing water guide systems such as a reservoir and a drainage ditch; after the soil is slightly aired, turning over and loosening the soil in the beach area, doping desulfurized gypsum (calcium sulfate), charcoal and a high-molecular water-retaining material into the soil, and fully mixing and uniformly stirring to form a water-retaining layer and provide nutrition for vegetation; sowing the seeds in a planting area according to the density requirement; finally, spraying a layer of macromolecular binding material on the surface to prevent weathering and saline-alkaline water erosion and slow down migration of salt to the planting layer; during irrigation, red soil is poured into the reservoir, saline-alkali water is introduced for stirring and standing for a period of time, then mixed muddy water is used for irrigation, and sprinkling irrigation is adopted for irrigation so as to slow salt infiltration into the earth surface; when the rainfall period is up, rainwater can be used for watering and washing off salt crystals on the earth surface. According to the method, rich mud flat resources in China are fully developed and utilized, the saline-alkali water serves as an irrigation water source, the problems of complex water diversion, troublesome salt leaching, fresh water deficiency, too high cost and the like of a traditional method are solved, the land utilization benefit and the agricultural production level are greatly improved, and the influence of salt on plants is relieved; the restoration of the ecological environment and the improvement of the agricultural production level are promoted.

The utility model discloses a road slope earth shoulder drainage system which comprises a water outlet piece, an earth shoulder vertical curb water blocking belt, a transverse drainage pipe assembly, a longitudinal drainage pipe and a base. The water outlet piece and the earth shoulder vertical curb water blocking belt are arranged on the edge of a highway pavement and used for collecting water in a centralized mode. The base is embedded in a side slope; the longitudinal drainage pipe is arranged on the base, and the longitudinal drainage pipe is longitudinally arranged in the advancing direction of a road; one end of the transverse drainage pipe assembly is connected with the water outlet piece and the earth shoulder vertical curb water blocking belt, and the other end of the transverse drainage pipe assembly is connected with the longitudinal drainage pipe. The longitudinal drainage pipe is provided with a plurality of sections, and the plurality of sections of the longitudinal drainage pipe are communicated with one another and finally communicated to a rain sewage outlet point. The drainage ditch is suitable for the conditions that drainage of a highway embankment drainage ditch arranged by utilizing gravity flow is unsmooth, natural water systems on the ground surface are deficient or land use is limited and the like; according to the utility model, fewer water outlet points of a natural water system can be reasonably utilized to form a complete drainage system.

The invention relates to the technical field of tunnel engineering construction, and discloses a tunnel drainage ditch integrated continuous inner slip form concrete pouring process which comprises the following steps: construction preparation: cleaning a construction area, calibrating a drainage ditch design line, and checking a template and equipment; formwork splicing is conducted, specifically, a bottom formwork, side formworks and a top formwork are spliced in a modularized mode, and tight splicing is ensured through splicing notches and locking devices; laying a preset path: laying a sliding preset path in the direction of the drainage ditch, wherein the preset path is fixed and corrects the position of the center line; and continuous concrete pouring is conducted, specifically, segmented continuous pouring is conducted on the concrete through high-frequency vibrating equipment, and the fluidity and compactness are monitored in the vibrating process. By adopting the technical scheme of a modularized and multifunctional embedded template, and integrating a laser positioning sensor, a vibration sensor network and a temperature and humidity sensor, the multifunctional integration of accurate template position control, real-time concrete vibration state monitoring and construction environment parameter feedback is realized.

The invention relates to the technical field of foundation pit supporting, and discloses a large-area foundation pit supporting construction method.A reinforcing mesh is arranged on a slope on one side of a drainage ditch on the ground, soil nails are arranged on the reinforcing mesh, the reinforcing mesh is fixed through the soil nails, a concrete layer is sprayed to form shotcrete-anchor supporting, and a waterproof curtain is arranged on the surface of the lower end of the reinforcing mesh; row piles are arranged on the inner side of the waterproof curtain and adopt cast-in-situ bored piles as foundation pit fender posts, a soil body below a foundation pit excavation face on the inner sides of the cast-in-situ bored piles is reinforced to achieve passive area soil body reinforcement, a top beam is arranged at the upper ends of the cast-in-situ bored piles, a reinforcing pier is arranged on the inner side of the top beam, and a steel lattice inclined pile is arranged on the side, away from the top beam, of the reinforcing pier. According to the construction method of the large-area foundation pit support, after the steel lattice inclined piles are put down, the reinforcing pier construction reinforcing bars and the steel lattice columns at the tops of the steel lattice inclined piles are firmly fixed, and the top beams and the reinforcing piers are poured, so that the top beams, the reinforcing piers and the steel lattice inclined piles form an integral structure.

The invention belongs to the technical field of retaining wall drainage holes, particularly relates to a retaining wall drainage hole structure and a construction method thereof, and provides the following scheme aiming at the problems that in the prior art, in the long-term drainage process, a drainage hole is prone to being blocked, and the drainage efficiency is remarkably reduced. The retaining wall comprises a retaining wall body and a plurality of drain hole bodies arranged in the retaining wall body. The water-permeable filler is arranged on one side of the retaining wall main body; the filling soil is arranged outside the water-permeable filler; the multiple inverted filter layers are arranged in the water-permeable filler and connected with the multiple drainage hole bodies correspondingly, a drainage ditch is formed in one side of the retaining wall body, a drainage ditch is formed in one side of the retaining wall body, and filter screens are arranged in the multiple drainage hole bodies correspondingly. The problem of blockage caused by long-term drainage of the drainage holes can be solved, and the drainage efficiency is improved.

The invention provides a retaining wall drainage system and a construction method, and belongs to the technical field of building construction. The lower water interception system comprises a concrete cushion layer for providing stable support, and a high-quality clay layer and a rigid waterproof layer are laid on the concrete cushion layer; the middle drainage system comprises an inverted filter arranged on the back face of the retaining wall body, the inverted filter adopts welded reinforcement cages as an outer frame, the reinforcement cages are connected through spiral bars, sand and pebbles are filled in the reinforcement cages, the inverted filter is fixedly connected with the back face of the retaining wall body through embedded bars, and a set of evenly-distributed drainage holes penetrating through the wall body are formed in the inverted filter. A drainage ditch is arranged at the front bottom of the retaining wall body; the upper water retaining system comprises a concrete coping and a water stop ridge which are arranged at the top of the retaining wall body; the functions of intercepting water, rapidly draining water and intercepting ground water flow can be achieved, the filtering effect is improved, the construction difficulty is reduced, the stability is enhanced, and rapid drainage is achieved.

The invention discloses a large-span basement multi-stage water guide and drainage structure and a construction method, and belongs to the technical field of building construction. The drainage guide pipes are hung below a main beam of a basement structure, and every two adjacent drainage guide pipes are connected through a three-way pipe. The two sides of the three-way pipe are in sealed connection with the drainage guide pipes on the two sides through fixing glue respectively, and the other side of the three-way pipe is vertically arranged upwards. The drainage branch pipe is hung below a secondary beam of the basement structure; the water inlet end of the drainage branch pipe is arranged in the dewatering well and connected with a water pump in the dewatering well, and accumulated water in the dewatering well is sucked through the water pump; the water outlet end of the drainage branch pipe is communicated with the three-way pipe between the drainage guide pipes; the water outlet end of the drainage guide pipe closest to the water-collecting well is communicated with the water-collecting well; the water collecting well is sequentially communicated with a peripheral drainage ditch and a municipal pipeline through a pipeline to drain accumulated water. The water guide and drainage system is optimized, and compared with traditional ground pipeline pulling and arranging, the problem that ground pipelines are arranged disorderly is solved, and convenience is provided for construction.