1724 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 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.

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.

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

The utility model discloses a deep foundation pit drainage structure which comprises a drainage ditch. A plurality of water collecting wells; one water filtering device is arranged in one water collecting well, any water filtering device comprises a box body, a water inlet is formed in the top of the box body, and a water outlet and a slag outlet are formed in the lower portion of the box body; the drainage pipe is communicated with the water outlet; the multiple filter plates are arranged in the box body at intervals in the vertical direction, the filter plates are in seamless connection with the inner side wall of the box body, and each filter plate is provided with an opening in the radial direction of the filter plate; in any two adjacent filter plates, the sizes of the filter holes in the upper filter plate are larger; the first rotating rod penetrates through the middle parts of the filter plates and is rotationally connected with the filter plates; each push plate is arranged above the corresponding filter plate, one end of each push plate is fixedly connected with the first rotating rod, and the other end of each push plate extends to the inner side wall close to the box body. According to the utility model, the filter plate is not easy to block, and impurities are easy to collect.

The invention relates to a debris flow gully slope protection structure, and relates to the technical field of water conservancy projects. Multi-stage counter-slope terraces are arranged on the slope surface of the debris flow gully slope from the bottom end to the top end, each terrace structure comprises a terrace surface, ridges and a terrace ditch which are arranged upwards at intervals along a contour line, each layer of counter-slope terrace is separated by using a mortar rubble retaining wall as the ridge, the terrace surface is covered with soil by using a slope native soil layer, and the terrace ditch is connected with the ridge of the next stage of terrace by adopting a mortar rubble material. The field surface has a reverse slope inclination angle of 5-10 degrees, and crops can be planted on the field surface. The field ditches are communicated with main drainage ditches on the two sides of the terrace along the contour line downwards, and metal gates are arranged at the joints to control water flow, are closed when water storage is needed and are opened when water drainage is needed. The structure can effectively reduce the material, construction and maintenance cost, has high debris flow resistance, can stabilize the debris flow channel slope, reduces the water and soil loss of the slope, plays a role in terrace water storage and drainage, and further protects and promotes the growth of crops.

The invention discloses a method for rapidly improving saline alkali soil by using urea phosphate. The method comprises the following steps: S1, preparation of a modifier: S1-1, preparation of a liquid modifier; s1-2, preparing a solid modifier; s2, excavating a salt elimination ditch; s3, drip irrigation salt elimination; and S4, deepening salt elimination. According to the method for rapidly improving the saline-alkali soil by using the urea phosphate, the liquid modifier and the solid modifier which are different in form act in the saline-alkali soil in a front-and-back matching manner, so that the physical and chemical properties of the soil can be improved, the organic matter content of the soil can be increased, the obstacle soil is suitable for plant growth, and the soil quality is improved. And the method is harmless to the environment and has wide economic and ecological benefits.

The invention relates to the field of specific calculation models, and discloses a natural regulation type salinized soil desalination simulation and multi-objective optimization configuration method, which comprises the following steps of: 1, data acquisition and earlier stage processing; 2, constructing a water and salt migration model; step 3, simulation analysis and scheme optimization; 4, carrying out substitution model training and multi-objective optimization; the final scheme is directly used for guiding engineering implementation, and specifically comprises the steps of determining the terrain adjustment amplitude, the position and depth of a drainage ditch, the micro-topographic relief scale, the earth filling and digging volume and shallow guide and drainage path configuration. The method has the beneficial effects that the natural drainage capacity of regional underground water can be remarkably improved, the effect that evaporation drives salt to move upwards is weakened, the rainfall infiltration capacity is improved, and the natural leaching effect is enhanced. The method is suitable for areas such as mud flats, salt pans and natural reserves where artificial engineering measures are not suitable to be taken, and has the advantages of low cost, high stability, ecological friendliness and the like.

The invention belongs to the technical field of building materials, and particularly relates to a joint mixture for drainage ditch installation and a preparation method thereof, the joint mixture comprises the following raw materials by weight: 35-50 parts of urethane acrylate resin, 20-30 parts of Portland cement, 10-15 parts of fly ash, 5-10 parts of kaolin, 3-6 parts of modified carbon fiber, 0.2-1 part of a photoinitiator, 0.5-2 parts of an organosilicon waterproofing agent, and 4-8 parts of a stabilizer. The modified carbon fiber is added into the joint mixture as a reinforcing phase, so that the mechanical strength and wear resistance of the cured joint mixture can be effectively enhanced. According to the invention, the stabilizer is added into the joint mixture, so that the joint mixture has antioxidant and antibacterial effects. The polyurethane acrylate resin is adopted as the main filler, the photoinitiator is good in stability and can be stored in a dark place after being mixed, the photocuring speed is high, and use is convenient.

The utility model provides a mine ecological restoration filling slope platform drainage device, and relates to the technical field of mine ecological restoration slope drainage. The structure comprises a filling slope, a soil drainage ditch, a clay layer, a drainage pipe, a geomembrane and a soil water retaining stem, a soil drainage ditch is arranged on the inner side of the slope platform; clay layers are arranged on the surfaces of the soil drainage ditches, and drainage pipes are arranged on the surfaces of the clay layers; a geomembrane is arranged on the surface of the drainage pipe, the two sides of the geomembrane extend to the platform and the slope toe, and a soil water retaining stem is arranged on the surface of the part, extending to the platform, of the geomembrane. The structure is convenient and rapid to construct, simple in structure and capable of adapting to uneven settlement deformation of the mine filling slope, water on the surface of the filling slope can be collected into the slope toe drainage ditch to be discharged in time, instability caused by surface water scouring and infiltration of the slope is prevented, vegetation damage caused by surface water is reduced, and the mine ecological restoration effect is guaranteed.

The invention provides a low-hill mountainous area non-point source pollution intelligent prevention and control and gradient utilization system, and relates to the technical field of low-hill mountainous area agricultural non-point source pollution prevention and control. The system comprises a drainage ditch, a water quality on-line monitoring module, an intelligent gate, a multi-stage ecological ditch pond, a direct drainage channel, an internet-of-things intelligent management and control platform and a stepped rice field. The system drives the intelligent gate to perform diversion according to a pollution index threshold value based on monitoring data, high-pollution water enters the multi-stage ecological ditch pond to be purified, low-pollution water is discharged through the direct discharge channel, and purified tail water is reused for the cascade rice field. Self-flow conveying is achieved by means of the regional height difference, a collaborative prevention and control mechanism of process interception, tail end purification and resource recycling is constructed, scientific prevention and control of pollution, intelligent management and efficient utilization of resources are achieved, the non-point source pollution treatment effect is remarkably improved, and continuous circulation of water and fertilizer resources is promoted.

The invention relates to an alpine region tunnel surrounding rock local water-rich anti-freezing drainage structure and a construction method, and relates to the technical field of tunnel construction. Comprising a primary support, waterproof board geotechnical cloth and a tunnel lining. A groove is formed in the surrounding rock, the primary support is arranged on the groove, the waterproof board geotechnical cloth is arranged on the outer side of the primary support, the tunnel lining is arranged on the outer side of the waterproof board geotechnical cloth, and a water collecting groove is formed in the position, 50-80 cm away from a conservative freezing line, of the outer side of the surrounding rock. Transverse drainage pipes or blind ditches connected with a tunnel center drainage ditch pipe are excavated at the bottoms of the water collecting grooves. Under the low-temperature environment of the tunnel, underground water can enter the water collecting tank through the radial water collecting pipe and is smoothly discharged out of the tunnel through a transverse drainage pipe or a blind ditch connected to the bottom of the water collecting tank and a tunnel deep-buried center drainage ditch pipe.

The application discloses a kind of quicksand layer open-pit mine slope landslide protection structures, including first fiber concrete layer, drainage ditch, dry channel, shallow grouting hole and second fiber concrete layer, first fiber concrete layer is sprayed in bottom slope surface;Drainage ditch is set on the slope bottom surface and extends along the length direction of slope;Dry channel outer end is extended to bottom slope surface and is connected with drainage ditch, and its inner end extends to bottom slope interior and is connected with underground water;Shallow grouting hole is filled with cement slurry, and cement slurry can permeate to bottom slope interior to fill the quicksand layer pore after dry underground water;Second fiber concrete layer is sprayed on the surface of first fiber concrete layer.Avoid to treat entire quicksand layer, greatly save the amount of work and construction period, construction is simple, construction cost is low, economy is good, also avoid groundwater erosion, soften sand layer, improve the self-stability of quicksand layer, especially the stability of upper slope.

The invention provides a deep foundation pit dewatering and drainage construction method based on water level control and a control system.The deep foundation pit is provided with an upper berm, a lower berm and an excavation base face, dewatering tube wells are arranged on the excavation face and the upper berm, and first water pumps of the dewatering tube wells are used for water pumping and drainage; an inverted filter layer is arranged on the slope surface of a lower berm and an excavation base plane, dewatering and drainage are conducted in cooperation with a slope toe drainage ditch and a water collecting well, water level sensors in a river and the water collecting well are used for collecting the water level in real time, optimization decision making is conducted in combination with the water level, then a first water pump is driven to conduct power adjustment, and the dewatering and drainage construction efficiency is improved through a corresponding control decision making method.

The utility model relates to the technical field of saline-alkali soil remediation, and discloses a saline-alkali soil environment and ecological remediation system which comprises a salt discharging pipe, a salt discharging ditch, a water treatment chamber, a first lifting conveying assembly, a water collecting tank, a first treatment box, activated carbon, a second treatment box, a flat plate ceramic membrane filtering assembly and a second lifting conveying assembly. Through the arrangement of the structure, the effects of collecting and desalting leaching water discharged after salt leaching are realized, and the desalted leaching water forms fresh water, so that the fresh water can be recycled, and the problem of shortage of fresh water resources is favorably relieved.

The utility model relates to the technical field of drainage ditch overturning, and provides a thin seam drainage ditch overturning device which comprises a supporting plate, a connecting plate is fixedly connected to the side face of the supporting plate, a handle is fixedly connected to the side face of the connecting plate, a hanging ring is connected to the side face of the supporting plate in a sliding mode, and the hanging ring is fixedly connected to the side face of the supporting plate. The end, away from the supporting plate, of the connecting plate is fixedly connected with a base, and a turnover device is arranged on the side face of the connecting plate. According to the utility model, when the turnover device for the slit drainage ditch is used, a user firstly holds the handle to move the turnover device to the position near the slit drainage ditch to be turned over; according to the technical scheme, the lifting ring is connected with appropriate lifting equipment, in the overturning process, the water tank guide pulley rolls along the edge of the slit drainage ditch, it is ensured that the overturning device is stably and accurately overturned along the preset track, and through the technical scheme, the problem that in the related technology, the slit drainage ditch cannot be stably overturned is solved.

The protection structure comprises a main body and a shielding assembly, a first air inlet is formed in the top wall of the main body, the shielding assembly comprises a cover plate and a supporting piece, the cover plate is supported above the top wall through the supporting piece and is provided with a second air inlet staggered with the first air inlet, and the first air inlet is communicated with the second air inlet. And a drainage mechanism is further arranged on the main body, specifically, a drainage ditch surrounding the periphery of the first air inlet is arranged, falling rainwater is shielded by the cover plate, rainwater falling from the second air inlet is collected into the drainage ditch on the upper side of the top wall to be drained, it is avoided that the rainwater falls into the well through the first air inlet, and the rainproof effect of protecting equipment in the well is achieved.

The utility model relates to a kind of communication structures of plant area road drainage ditch.It is applicable to water supply and drainage technical field.The technical scheme adopted by the utility model is: a kind of communication structures of plant area road drainage ditch, plant area road is staggered arrangement, the drainage ditch is arranged in road side, with: water guide ditch, transversely arranged in road, water guide ditch two ends are respectively connected with the drainage ditch of two roads staggered arrangement;Guide block, along water guide ditch length direction arrangement is in water guide ditch, guide block top is made with the water guide groove being set along water guide ditch length direction;Cover plate, arrangement is in guide block, cover plate can cover the opening of water guide ditch;Backfill, fill in the position of guide block around in water guide ditch.

The utility model discloses an anti-slip cable trench comprising a cable trench main body which is provided with a cable trench; the drainage ditch is connected to the first side part of the cable trench main body, and the drainage ditch is provided with a drainage ditch groove; the number of the anti-skid bodies is multiple, the multiple anti-skid bodies are arranged at intervals in the length direction of the cable trench main body, each anti-skid body comprises a first anti-skid part connected to the first side part of the cable trench main body and a second anti-skid part connected to the bottom of the cable trench main body, the first anti-skid part is provided with a first drainage channel communicated with the drainage groove, and the second anti-skid part is provided with a second drainage channel communicated with the drainage groove. The second anti-skid part is provided with a second drainage channel communicated with the first drainage channel, and the second drainage channel is further communicated with the cable groove. The anti-slip cable trench can improve the anti-slip effect and reduce the risk of water accumulation.

This utility model discloses a prefabricated drainage ditch installation device with a guiding and positioning structure, comprising: a base layer, a bottom plate at the bottom of the base layer, and a support plate for supporting the whole; the inner surface of the base layer is filled with a layer of cement mortar, and the inner end of the upper surface of the base layer is provided with a plurality of positioning holes at equal intervals from front to back; the bottom end of the cement mortar layer is provided with a bottom plate, and the upper surface of the bottom plate is provided with adjustment grooves on both the left and right ends; the upper surface of the bottom plate is provided with side plates on both the left and right ends; the bottom outer end of the side plate is fixedly connected with a connecting protrusion, and the bottom upper surface of the side plate is provided with a connecting groove; the inside of the connecting groove is engaged with the bottom end of the support plate. This prefabricated drainage ditch installation device with a guiding and positioning structure can guide and position the drainage ditch before pouring cement into it, avoiding installation failure and material waste.