7465results about "Sewer pipelines" patented technology

The invention relates to the technical field of mine side slope restoration, in particular to a mine side slope ecological restoration method which comprises the following steps: S1, performing field investigation and evaluation, and performing comprehensive surveying and mapping on the landform of a mine side slope by using a high-precision surveying and mapping instrument; the anti-seismic effect and the prevention and control of water and soil loss are prominent, the anti-seismic performance is enhanced through deep rock mass anchoring reinforcement, large-diameter and high-strength anchor cables are adopted, bed rock is deeply stabilized, prestress is applied, the integrity of the rock mass is enhanced, reinforced concrete anti-sliding piles are arranged near potential sliding surfaces, the anti-sliding capacity is improved, and the anti-seismic effect is achieved. When a damping ditch is dug between a slope top and a blasting area, loose gravel is filled to weaken vibration energy, the anti-seismic performance of the side slope is comprehensively improved, and water and soil loss is prevented, a drainage system is constructed to intercept surface water, vegetation is reasonably configured, planting grooves and fish-scale pits are arranged, an ecological restoration composite structure layer is built, and a grass spraying and planting and vine climbing system is combined. And water and soil loss is reduced through multiple measures.

This resin trough body has an approximately U-shape cross-sectional shape that includes a bottom section and side sections on the two sides. Vertical reinforcement ribs are formed at a prescribed interval on the outer surface of both side sections of a trough body of a prescribed length. Further, near the front and back ends of the trough body, horizontal ribs are formed so as to link two vertical ribs. An accommodation space for accommodating a grating lid is formed by a pair of L-shape members being fixed with bolts to a fixing jig that has been attached to the horizontal ribs. The grating lid is accommodated in said accommodation space, and the grating lid is fixed to a bolt fixing section, which is a mounting hole formed in the horizontal plane of the L-shape members.

The present invention relates in general to a linear drain system for terminating installed tiles at the edges of balconies or terraces and redirecting water away from the walls below. The assembly has an elongate channel section forming a longitudinally extending trough, the trough having a floor with a first interior surface shape and a pair of wall sections extending substantially vertically upward from opposing longitudinal edges of the floor. An insert is releasably disposed in the elongate channel section to overlie the trough floor. At least one outlet assembly having a central mounting portion with a surface shape that is the same as the first interior surface shape of the floor and is connected to the floor. The at least one outlet assembly is coupleable to a plumbing system. An elongate edge assembly extends longitudinally from one of the pair of wall sections of the elongate channel section. A flange extends orthogonally from an upper edge of the wall section with a leg portion extending downwardly from a longitudinal edge of the flange. The leg portion has a lip extending outwardly at an angle from a distal end of the leg portion. The floor drain assembly is positioned adjacent to a free edge of the balcony with the leg portion and lip of the elongate edge assembly positioned to direct fluids away from a vertical face of the free edge of the balcony.

Systems and methods of installing a fixture into a material are provided. The fixture includes a body and a cover assembly that is removably coupled to the body and configured to move relative to the body once the body has been secured within the material. The cover assembly includes a movable component configured to aid removal of the cover assembly.

The invention discloses an urban rainwater pipe network blockage risk early warning method and system based on edge calculation, and relates to the technical field of urban drainage monitoring. The problems that existing pipe network blockage detection lags behind, and the early warning precision is insufficient are solved. Dynamic hydraulic parameters and sediment migration state data of a pipe section are collected in real time through edge calculation equipment deployed at a pipe network node, the hydraulic state deviation rate is calculated, and the local blockage risk is rapidly recognized; when the deviation rate exceeds a threshold value, a dynamic sensing network is established by the trigger nodes, and a pipe network hydraulic topological relation is established by integrating the liquid level and flow velocity characteristics of the upstream and downstream nodes; executing distributed collaborative analysis based on the topological relation, identifying an abnormal attenuation area, calculating a sediment dynamic equilibrium index, and generating a blockage diagnosis parameter; and further combining real-time rainfall intensity to predict an overflowing capacity attenuation curve, generating a multi-stage early warning instruction according to an attenuation slope, and distributing the multi-stage early warning instruction to an operation and maintenance terminal, thereby realizing accurate early warning and active regulation and control of the blockage risk of the rainwater pipe network.

A tile drain and method of installing a tile drain is provided. The tile drain includes a drain body and a drain cover. The drain body defines a top opening, top weep apertures, and bottom weep apertures. The top opening receives the drain cover and serves as the primary drain for the tile drain. The top weep apertures are positioned below a top layer, such as a tile layer, of the base so as to receive fluid positioned between the top layer and a top waterproofing layer of the base. The sub weep apertures are positioned below the top waterproofing layer of the base so as to receive fluid positioned between the top waterproofing layer and a bottom waterproofing layer of the base. The drain body is encapsulated within the base, but the drain cover is adjustable relative to, and removable from, the drain body.

The invention discloses a weak intercalated layer control-based closed conduit-slope system optimization layout method, which comprises the following steps of S1, geological survey and parameter acquisition: accurately positioning a weak intercalated layer through a geological radar and drilling coring, and determining a rock-soil body strength parameter by combining a laboratory rock-soil mechanical test, geological radar data and rock-soil body strength parameters are analyzed through a random forest algorithm, and the interlayer space distribution rule is predicted. By combining geological survey, numerical simulation, intelligent optimization and dynamic monitoring technologies, scientific layout and adjustment of a closed conduit-side slope system are realized, a weak intercalated layer seepage path is accurately cut off, the safety coefficient of the side slope is effectively improved, meanwhile, expansion of a plastic zone is effectively inhibited, settlement of an overlying soil body or large-range deformation of the side slope is reduced, and the stability of the side slope is improved. The seepage stability and the stress slow release capacity of the system are enhanced, the safety of the water diversion project in a complex geological area is improved, and an operable technical path and basis can be provided for layout of similar projects in the future.

The invention discloses a slope drainage and regreening ecological protection device, and belongs to the technical field of slope protection. The device is composed of an intercepting ditch, a drainage ditch, a concrete supporting structure and an irrigation structure. The intercepting ditch is located at the top of the slope, located at the bottom and responsible for intercepting and dredging water flow. The concrete supporting structure comprises a concrete frame and reinforcing piles, the frame forms a rectangular planting area on the slope surface, the reinforcing piles penetrate into the slope, and a stable foundation is provided for regreening. A spray-seeding material layer is arranged in the planting area, and the surface layer is covered with a grid. The irrigation structure comprises a water storage cavity, two water pumping structures and an irrigation cavity and can collect rainwater and irrigate according to needs. The device has obvious advantages, the drainage system reduces water and soil loss and geological disaster risks, and the vegetation coverage rate is increased through the regreening design. Meanwhile, water resource recycling is achieved through the water storage irrigation function, manpower and water resources are saved, the high efficiency and sustainability of slope ecological protection are guaranteed, and important application value is achieved in the field of slope protection.

The invention relates to the technical field of urban drainage management, and discloses a municipal sewage pipe network dynamic drainage system and a control method, and the system comprises a sewage pipe network, a central controller, a pump station, a valve and an edge control terminal; the control method comprises the following steps that real-time data are obtained from a plurality of sensors arranged in a sewage pipe network, the plurality of sensors comprise a flow sensor, a water level sensor, a pressure sensor and a rainfall sensor, and the obtained real-time data comprise the sewage flow, the water level, the pipeline pressure and the external rainfall inflow in the pipe network; based on the collected real-time data, dynamic hydraulic modeling is carried out on the sewage pipe network through a central controller, a mathematical model for describing the hydraulic state change of the pipe network is established, and the mathematical model comprises spatio-temporal evolution of flow, water level and pressure. According to the invention, by constructing a drainage scheduling mechanism based on real-time data modeling and edge control linkage, dynamic adjustment and stable control of the running state of the sewage pipe network are realized.

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.

A linear drain assembly is provided. The linear drain assembly includes a base portion, a first peripheral portion slidable relative to the base portion, and a sealing member disposed between the first peripheral portion and the base portion forming a seal between the base portion and the first peripheral portion.

The invention discloses a drainage device for constructional engineering, relates to the technical field of drainage devices, and has the advantage that when a filter screen is replaced or cleaned, water does not need to be stopped from entering a water inlet pipe, and the key point of the technical scheme is that the drainage device comprises a drainage tank and a filter tank arranged at the top end of the drainage tank; a plurality of water passing grooves communicated with the drainage box are formed in the bottom end in the filter box, a fan-shaped base plate is arranged at the bottom end in the drainage box and located on one side of each water passing groove, a fan-shaped mounting plate is arranged at the top end of the base plate, and a plurality of filter assemblies are evenly distributed at the top end of the mounting plate in the radian direction of the mounting plate; each filter assembly comprises a filter screen, the bottom end in the filter box is vertically and fixedly connected with a vertical pipe, the vertical pipe is communicated with one filter assembly through a flow guide part, one side of the outer wall of the drainage box is provided with a water suction pump, the water suction pump is communicated with the bottom end of the vertical pipe through a water inlet pipe, and one side of the drainage box is provided with a drainage pipe.

The invention discloses a drainage pipeline multi-parameter sensing trenchless repair dynamic regulation and control method and system. Through a fusion technology path of multi-source comprehensive data acquisition, edge calculation real-time cross validation of abnormity, pipeline state simulation analysis of defect levels, intelligent algorithm dynamic adjustment of repair parameters and geographic information visualization platform full-process monitoring, closed-loop management from abnormity identification to repair regulation and control is realized. A comprehensive data set is formed through multi-source data acquisition, an edge computing technology is utilized to quickly identify abnormities, a simulation technology is combined to evaluate the severity of defects, then process parameters are optimized and repaired based on defect levels, and a regulation and control instruction is generated through linkage of a visual platform and a pump station dispatching system. And finally, a pipeline repair and operation regulation and control scheme is formed through integration, and the repair effect and the system stability are ensured. According to the method, the pipeline abnormity processing accuracy and the repairing efficiency are remarkably improved, and a technical guarantee is provided for safe and stable operation of an urban drainage system.

The invention relates to an anti-deposition method and system for a sequencing batch storage and drainage sewage pipe network. The method comprises the following steps: determining the highest allowable storage water level and the lowest allowable discharge water level of each sewage pump station according to an unfavorable overflow point and a leakage point in an upstream service range of each sewage pump station; according to the historical change rule of the flow of each sewage pumping station, determining a corresponding upstream discharge water quantity increase abrupt change point; according to the drainage path of each sewage pump station and the upstream drainage amount increase abrupt change point, determining the sequence of the water storage-drainage mode of each sewage pump station; according to the drainage path and the operation mode of each sewage pump station, adjusting the operation mode and the pumping and drainage flow of other sewage pump stations; and when each sewage pump station is in the water storage-drainage mode, monitoring the liquid level change in real time, and controlling the operation state of the corresponding lift pump according to the liquid level change of each sewage pump station, the corresponding highest allowable water storage level and the corresponding lowest allowable water discharge level. According to the invention, the pollutant collection and transfer efficiency can be effectively improved.

The invention discloses an existing anchoring and shotcreting side slope ecological restoration technology and method with shrub planting as the core, a side slope vegetation hole environment improving device and a hole filling layered structure design are included, and the side slope vegetation hole environment improving device is mainly composed of a conical threaded drill bit, a connecting rod, a motor, a metal connecting hose, a pressure storage tank and an air compressor. The motor provides power for penetration of the gas injection needle head, and the air compressor provides power for injection of the plant nutrient solution; the vegetation hole layered structure comprises a bottom water retention layer, a base fertilizer layer, a nutrient soil layer and a surface covering layer; environment improvement is conducted on the vertical and horizontal directions of the planting holes through an environment improvement device, local dominant shrubs are planted in the planting holes, and local dominant vine plants are planted at the top of the slope to comprehensively and ecologically protect the slope; comprising the following steps: step 1, investigating and surveying plant communities and analyzing slope stability; step 2, slope vegetation hole environment improvement; 3, planting hole construction; and 4, slope top vine plant ecological slope protection construction is carried out.

The invention discloses a filtering anti-blocking structure of a drainage pipe for road maintenance, and relates to the technical field of sewage discharge. The filtering anti-blocking structure of the drainage pipe for road maintenance comprises a first pipeline, and the top of the first pipeline is fixedly connected with a first filtering mechanism. According to the filtering anti-blocking structure of the drainage pipe for road maintenance, sewage is preliminarily filtered by arranging the conical filtering cylinder, and the sewage is secondarily filtered by arranging the first filtering disc and the second filtering disc in a matched manner, so that the situation that a single filtering net is easily and instantly blocked by large-particle impurities is avoided, the pressure of post-stage filtering is reduced, and the filtering efficiency is improved. A limiting rotating ring block is arranged, a first driving motor is started, the limiting rotating ring block is finally driven to rotate through gear meshing, at the moment, a rotating ball continuously slides on the surface of the limiting rotating ring block, and a first spring is matched, so that a second fixing block periodically reciprocates; finally, the banister brush is promoted to clean the through holes of the conical filter cartridge, and the through holes are prevented from being blocked.

The utility model discloses a river channel engineering construction slope protection structure, which belongs to the field of slope protection structures, and is characterized by comprising a body mechanism, a connecting mechanism is mounted at the outer end of the body mechanism, a slope protection mechanism is mounted at the outer end of the connecting mechanism, the connecting mechanism comprises reinforcing plates, the reinforcing plates are uniformly distributed at the outer end of the body mechanism, mounting frames which are symmetrically distributed are mounted at the outer ends of the reinforcing plates, and connecting rods are mounted at the outer ends of the mounting frames. The inner end of the mounting frame is slidably connected with a positioning rod; by arranging the connecting rods and the positioning rods, when the slope protection reinforcing structure is installed, the positioning rods at the outer ends of the multiple reinforcing plates are inserted into the inner end of the mounting frame outside the other reinforcing plate, the multiple reinforcing plates can be conveniently assembled, the positioning rods drive the clamping blocks to be stably clamped to the inner ends of the connecting rods, and therefore the multiple reinforcing plates are more convenient to assemble; arrangement and installation are convenient, and the protection effect of the slope protection structure is improved.

The utility model discloses a three-link ecological protection structure for a slope, including a slope, two sides of the slope are provided with fixed beams 1, an irrigation structure is provided on the top of the slope, a plurality of pairs of fixed beams 2 are provided on the slope at equal intervals, a plurality of arc-shaped guide plates are fixedly connected between the fixed beams 1 and 2, a plurality of planting frames are provided between the arc-shaped guide plates, a drainage structure is provided on the opposite side of the fixed beams 1, a filtering structure is provided on the fixed beams 1 and 2, a drainage channel is provided at the bottom of the slope, a crushed stone layer is provided at the bottom of the slope, and a metal grid is fixedly installed on the surface of the crushed stone layer. The advantages of the utility model compared with the existing technology are: the utility model can not only guide rainwater to quickly drain water to avoid rainwater flowing straight down along the slope to form runoff to wash away vegetation and soil, but also collect rainwater and carry out reasonable irrigation to ensure the growth of slope vegetation.

The utility model discloses a drainage system with an intercepting and buffering mechanism. The intercepting plate is connected to the interior of the main frame, the baffles are arranged in the intercepting plate, the base rod is connected to the middle of the front end of the main frame, the transverse battens are connected to the inner side of the base rod and correspond to the baffles in a one-to-one mode, the linkage rods are detachably connected between the transverse battens and the baffles, and rectangular bases are arranged on the two horizontal sides of the main frame. And the fixing plate is connected in the rectangular seat in a retractable manner. A plurality of movable baffles are arranged on the intercepting plate, and the baffles can be overturned to different inclination angles in a rectangular through opening in the intercepting plate under the mutual cooperation of a push rod, a transverse strip plate and a linkage rod, so that the size of an overflow opening formed by the rectangular through opening in the intercepting plate is controlled, and the water flow intercepting and buffering effects are rapidly achieved; and the fixing plate and the rectangular seat arranged on the two sides of the main frame can be matched with each other to be quickly mounted at a proper closure position of the ditch.

The invention relates to the technical field of building engineering management, in particular to a building water supply and drainage system based on a building BIM (Building Information Modeling), which comprises a pipeline drawing generation module, an interface arrangement verification module, an arrangement space detection module, an operation data monitoring module and a fluid risk early warning module. According to the method, standardized drawing mapping of the pipeline trend, size and node layout is achieved through structured extraction of the BIM model, it is ensured that drawing output is complete and consistent, interface offset is automatically compared, abnormal arrangement is accurately recognized, the installation accuracy is improved, component conflicts can be pre-judged through space node clear distance analysis, field coordination is assisted, and the construction efficiency is improved. The method comprises the following steps: monitoring flow velocity pressure of a key drainage section, screening abnormal nodes, filing a hydraulic state, analyzing high-frequency risk points in a time sequence, marking continuous abnormity, providing operation early warning support, constructing drawing generation, arrangement verification, space coordination and a data feedback closed-loop process, and improving construction design accuracy and system operation stability.

Systems and methods of installing a fixture into a material are provided. The fixture includes a body and a cover assembly that is removably coupled to the body and configured to move relative to the body once the body has been secured within the material. The cover assembly includes a movable component configured to aid removal of the cover assembly.

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.

According to the method, bacillus licheniformis bacterial liquid and calcium ion liquid are sequentially, slowly and evenly sprayed on the surface of a soil body, soil particles on the surface of a slope are cemented, a layer of calcium carbonate protection film is formed on the surface of the soil body, the anti-scouring capacity of the soil body can be effectively improved, flowing of the soil particles is reduced, and plant growth is protected; the adopted bacillus licheniformis can also increase the number of effective microbial communities in soil, improve the root system environment, promote plant growth, inhibit reproduction of harmful microorganisms, improve the granular structure of the soil, improve the soil, regulate the pH value of the soil, improve the water storage, energy storage and heat preservation of the soil, improve the disease resistance of crops and promote the maturity of plants; after vegetation grows, the effect of water and soil conservation can be improved, generated calcium carbonate can also bond soil particles, water and soil loss is reduced, bacillus licheniformis plays a dual role, multiple utilization of resources is achieved, and wide application prospects are achieved.

The invention discloses an agricultural small-watershed integrated water and soil loss prevention and control method, which comprises the following steps of: performing source reduction in a slope cropland area with the gradient of more than 6 degrees to control a slope cropland erosion source so as to treat surface erosion and runoff expansion; process blocking and control are conducted from the middle upstream area to the middle downstream area, and sediment migration is blocked and the confluence speed is adjusted through linkage of the grading ditch system and the sedimentation and storage facility; tail end purification is carried out in a drainage basin outlet area, water quality is purified through ecological engineering measures, and a drainage basin outlet is stabilized; the technical problems that in the prior art, comprehensive prevention and control means starting from the whole drainage basin are lacked, traditional measures have obvious defects in the aspects of function coupling, space coordination and ecological restoration capacity, and the dual requirements of current agricultural green development and ecological environment protection are difficult to meet are solved.

The invention discloses a basement outer wall waterproof structure which comprises a basement side wall poured on a bottom plate, the basement side wall comprises an inner wall and an outer wall which are parallel and spaced, and a soil filling layer is arranged in a closed space formed between the inner wall and the outer wall; the multiple capillary drainage pipes are arranged in the soil filling layer in parallel at intervals, and one end of each capillary drainage pipe penetrates out of the interior wall into the basement; the outer wall waterproof layer is laid on the outer side of the outer wall, the outer wall waterproof structure adopts a waterproof strategy of combining outer blocking, inner drainage, passive water blocking and active drainage, the inner wall has good impermeability, the invention further discloses a construction method of the basement outer wall waterproof structure, and under the condition that the site construction difficulty is not increased, the outer wall waterproof layer can be laid on the outer side of the outer wall. And on-site construction of the waterproof structure is effectively completed.

The invention discloses an urban intelligent drainage method and system, and relates to the technical field of business information, and the intelligent drainage management method comprises the following steps: dividing an underground pipe network into pipe sections and a plurality of node wells which are communicated with one another through the pipe sections according to a topological structure of the urban underground pipe network; obtaining the water level and the flow velocity of the pipe section, flowing to the node well, of the water flow through a sensor arranged in the node well, and calculating the flow of each pipe section according to the water level and the flow velocity; the working state of each pipe section is recognized according to the water level, the flow speed and the flow of each pipe section, when the working state of each pipe section is abnormal, the abnormity is automatically sensed and recognized, and accordingly, alarm is intelligently triggered, and a corresponding disposal instruction is sent out. According to the intelligent drainage management method provided by the invention, the leakage type can be accurately identified, the leakage property and position can be judged, an effective disposal instruction can be intelligently sent out, and the accuracy and the use effect of construction, management and maintenance of an urban drainage system can be greatly improved.

The invention discloses a rainwater collection device based on a sponge city and a collection method thereof, and particularly relates to the technical field of rainwater collection, the rainwater collection device comprises a reservoir and a precipitation cylinder, the reservoir is internally provided with an inspection well and a recycling well, the bottom of the precipitation cylinder is provided with a first pollution discharge hole, and the first pollution discharge hole is internally provided with a first sealing element; the first sealing piece can change the sealing state according to the amount of accumulated water in the precipitation barrel, a stirring piece is arranged at the inner bottom of the precipitation barrel, and the stirring piece can stir sediment at the first pollution discharge hole when the first pollution discharge hole is opened; the sewage draining exit is opened in advance according to the precipitation amount and the water storage amount in the water storage pool, meanwhile, accumulated water in the water storage pool is kept at a certain water level, the water storage pool has a certain buffer space, and therefore it is guaranteed that when the precipitation amount is large due to rainstorm or long-time raining, the water storage pool can not be blocked; the rainwater collecting device can quickly discharge flood to prevent urban waterlogging.

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.