128 results about "Catchwater" patented technology

The invention discloses a mine ecological remediation and slope vegetation fast restoring method suitable for the arid region. The method comprises a slope protection method and the steps that water collecting devices are arranged; soil improvement is carried out; vegetation configuration is carried out. Firstly, according to the through slope arrangement, mining slide slopes needing to be restored are subjected to step type slope cutting to be stabilized, an ecological catchwater is arranged on the inner side of each stage of a platform, and the steps are continuously provided with desilting basins and water collecting pits every other certain distance. Water collecting devices are mounted in the water collecting pits and connected with the desilting basins and the catchwaters, the other ends of the water collecting devices are provided with controllable drainage ports, the water collecting devices are connected with a slope irrigation system and used for collecting and fully and reasonably utilizing slope runoff, a dry season irrigation water source is provided, meanwhile, slope scouring is avoided, and water and soil losses are reduced. The platform and the slopes are all covered with earth, a planting pit is dug in each stage of the platform, the mode of ecological bags and ecological blankets is adopted in each stage of the slopes, a soil conditioner and foreign soil from other places are mixed, the planting pits, the ecological bags and the ecological blankets are filled with the mixture, and good water and fertilizer conditions are provided for plant growth. Proper trees brushes and grasses are selected to be distributed. The ground conditions of the side slopes are comprehensively improved, and side slope vegetations are restored to the natural ecological state.

The invention discloses a high and steep rocky slope vegetation planting method. The high and steep rocky slope vegetation planting method comprises the following steps of 1 digging a plurality of planting holes in the surface of a high and steep rocky slope; 2 drilling a plurality of root system holes in the bottoms of the planting holes; 3 pouring water into the planting holes and the root system holes after the root system holes drilled, mixing and stirring clay and water to form slurry after accumulated water disappears, filling the slurry into the root system holes and coating slurry on the inner walls of the planting holes; 4 sequentially filling water storage layers, a nutrient soil layers, seed layers and evaporation preventing layers in the planting holes from bottoms to tops. By means of the high and steep rocky slope vegetation planting method, the vegetation moisture problem is solved, vegetation survival rate is improved, and maintenance cost is reduced.

The invention discloses an arsenic sandstone slope treating method and mainly applies to conservation of water and soil, vegetation and stabilization treatment of the arsenic sandstone slope. The arsenic sandstone slope treating method includes a steep slope treatment process, a slope crest treatment process and a slope base treatment process. The slope treatment process includes excavating a catchwater at the position distant from the slope crest by 1-3m, and excavating fish-scale pits at the position of the catchwater distant from the abrupt slope by more 2m; spraying resin solution in 5-15% concentration onto rock soil between the catchwater and the top edge of the slope to form a water-resisting layer. The steep slope treatment process includes dividing the slope into a steep slope, a moderate slope and a gentle slope according to the gradient of the slope; spraying different concentrations of resin solution on the surface of the slope according to different slopes. The slope base treatment process includes spraying the resin solution in 3-5% concentration on the surface of the slope base to form a greening layer, and planting herbaceous plants and woody plants. Compared with the prior art, the arsenic sandstone slope treating method has the advantages of high efficiency and convenience in resin spraying and construction, stability in the slope after implementation and the like.

The invention discloses a method for afforesting a completely-weathered aleurolite side slope by utilizing native plants. The method comprises: according to the characteristics of thinner soil layer and high and steep slope of the completely-weathered aleurolite, spraying and planting plant seeds by a hung three-dimensional net hydraulic soil replacement spraying and planting method; digging a hole on the side slope by combining with a side slope hole digging and fixing process; building a favourable environment for the plants to grow in the hole; planting the native plants (masson pines and Chinese cherries) into the hole; watering and applying fertilizer to cause the native plants to normally grow; planting native herb, native bush and native arbour on the side slope and around the side slope and a catchwater; after normal maintenance, afforesting the completely-weathered aleurolite side slope. The material adopted by the invention has no pollution. The method is characterized by biological environmental friendliness and improved afforestation survival rate; and in addition, the method does not affect environment, and belongs to energy-saving and clean production. The adopted native plants are subjected to side slope afforestation and are harmonious with surrounding environment, thus obtaining the result of efficiently combining the effects on afforestation, beautification, original ecology and environmental friendliness.

The invention relates to an urban rainstorm waterlogging ponding depth extraction method. The method comprises the steps of establishing an urban terrain model, obtaining an urban depression ponding contribution area, establishing an urban rainfall model and an urban drainage model, obtaining the total surface runoff, establishing an urban surface ponding model and obtaining the ponding depth. Themethod has the advantages that the original digital elevation model is corrected, so that the real urban terrain can be reflected; A depression contribution area is used as a basic hydrological unit,so that the diffusion process of water flow on the surface of a complex city can be reflected more truly, and the simulation precision is improved; The evaporation and permeation of rainfall and thedrainage process of a sewer system are simplified, so that the model is easy to operate and quick in calculation to obtain accumulated water information.

The invention discloses a construction method of an ecological revetment for river bank protection. The construction method comprises the following steps of a, paving a gravel material cushion layer;b, paving geotechnical cloth; c, backfilling a soil layer with the depth of 20-30 cm on the geotechnical cloth, and compacting the soil layer; d, constructing the ecological revetment; and e, placingsoil into ecological planting holes of ecological building blocks, and then growing plants. According to the construction method, the ecological building blocks after construction cannot fall off, sothat the overall performance of the whole ecological revetment is improved, and the flood prevention effect, the ecological effect, the landscape effect and the self-cleaning effect of the ecologicalrevetment are enhanced; and meanwhile, accumulated water on the construction site can flow into the inclined surface parts of the ecological building blocks through filter plates used for lapping withthe building blocks, and the water on the inclined surface parts of the ecological building blocks are discharged into the soil through drainage grooves, so that the earthwork of the construction area which is not paved with the ecological building blocks is prevented from being subjected to micro-amplitude sedimentation phenomenon, the flatness of the excavated earthwork is guaranteed, the ecological building blocks can be conveniently and quickly laid, moreover, the ecological building blocks can be quickly replaced, and the service period of the ecological revetment can be prolonged.

The invention discloses a construction method of a tunnel entrance and exit hole. The construction method of the tunnel entrance and exit hole comprises the following steps that a hole top catchwateris excavated; the hole is excavated; a hole side slope and a heading slope are protected; a cover arch is constructed; and a pipe shed is constructed. When the hole top catchwater is excavated, excavation and laying are carried out sectionally from low to high. When the hole is excavated, hole excavation and side slope and heading slope excavation are carried out synchronously; an arc excavation reserved core native law is adopted in the hole excavation; and the side slope and the heading slope are excavated along a hole excavation line. The hole side slope and the heading slope protection process can be carried out following side slope and heading slope brushing. The cover arch construction working process comprises the following steps that surveying and setting out are carried out; the heading slope is excavated and excavation and supporting are carried out at the same time; an I-shaped steel arch frame is mounted; a template is mounted; and cover arch concrete is constructed. The pipe shed construction process comprises the following steps that hole site setting out and drilling machine erection are carried out; drilling hole footage and error correcting are carried out; pipe shed steel pipes are machined; the pipe shed steel pipes are jacked; and pipe shed slip casting is carried out. According to the construction method of the tunnel entrance and exit hole, the soft rock tunnel hole can be effectively reinforced.

The invention discloses a partly bright partly dark holed construction method for a highway tunnel. The method comprises the following steps: a, building a catchwater system on the roof of the tunnel;b, excavating and supporting a side slope of a tunnel opening; c, building an unsymmetrical retaining wall on the outer side of the tunnel opening; d, supporting an open cut tunnel on the outer sideand constructing a protecting arch; and e, excavating and supporting a dark tunnel on the inner side and filling the dark tunnel with an inverted arch. By building a catchwater on the roof o the tunnel, rainwater can be prevented from scouring a slope surface for a long time; the side slope on the tunnel opening is excavated and supported to enhance the stability of the side slope of the tunnel opening, and by building the unsymmetrical retaining wall on the outer side, influence of unsymmetry to the structure is reduced. The open cut tunnel on the outer side is supported and the protecting arch is constructed, and finally, the dark tunnel on the inner side is excavated and supported, and the dark tunnel is filled with the inverted arch. The method can balance loads of rocks around the tunnel effectively to make sure that a holed construction environment of the tunnel is stable, so that the problem of difficulty in tunnel holed construction is solved effectively.

The invention discloses a swell-shrink characteristic rock-soil cut slope protection method and structure. The method comprises the steps of a, digging and leveling a cut slope according to a designed slope gradient; b, building support sewers on the surface of the slope body with rubble, gravel and mortar at certain intervals in the longitudinal direction of the cut slope; c, arranging anchor rods and reinforced concrete frame beams in a criss-cross mode on the portions, between every two support sewers, of the surface of the slope body; d, constructing catchwaters with mortar rubble on the top of the cut slope and a platform portion; e, drilling the slope body from the bottom of the cut slope, and implanting PVC inclined drain pipes; f, constructing a footwall with mortar rubble at the position of the slope toe; g, filling grillage chambers of the reinforced concrete frame beams with loam, and conducting soil spraying and grass planting. The structure is composed of the cut slope body, the support sewers, the reinforced concrete frame beams, the anchor rods, the catchwaters, the inclined drain pipes, the footwall and grass sowing by spraying. The method is simple, using is convenient, and the method and structure are suitable for reinforcement and protection of the swell-shrink characteristic rock-soil cut slope, water drainage and resistance and environment-friendly landscape.

A method for ecological agriculture reconstruction of a coal mining subsidence waterlogged area is suitable for ecological system restoration and agricultural planting and breeding structure reconstruction of a mineral product mining subsidence waterlogged area. The method includes the steps that the coal mining subsidence waterlogged area is divided into a flat ground area, a slope area and a subsidence waterlogged area water-containing area; accumulated water is detected, transformation is directly carried out when the accumulated water meets the agricultural water quality standard, and planning is carried out to make the water qualified when the detection result does not meet the agricultural water quality standard; a water storage area water level balance system is constructed, filling reclamation is carried out in the range of the flat ground area, wetland is transformed, soil improvement is carried out to make the wetland become cultivated land, and a movable greenhouse is built; the slope area is divided into three parts for planting arbors, shrubs and forage grass; aquatic vegetables are planted in a shallow water area, and aquatic organisms are bred in a deep water area. Through ecological agriculture reconstruction of the coal mining subsidence waterlogged area, the utilization rate of water and soil of the subsidence area is increased, a complete subsidence area ecological system is constructed, and the method is suitable for ecological environment restoration and control over various coal mining subsidence waterlogged areas in the East of China.

The invention relates to the technical field of rainwater collection and utilization, in particular to a landscaping rainwater collection and utilization system. The landscaping rainwater collection and utilization system comprises a rainwater collection device, a rainwater filtering device, a water storage device and a rainwater utilization device which are in sequential communication, wherein the rainwater collecting device comprises drainage channels and a vegetation water seepage device, the drainage channels are arranged at the two sides of a road in the road direction, and the vegetationwater seepage device is arranged below vegetation and communicates with the drainage channels; the rainwater filtering device comprises a filtering cylinder, the drainage channels are gathered at thetop of the filtering cylinder, and a filtering net is arranged in the filtering cylinder; and the water storage device comprises a reservoir, the reservoir is buried underground, and the bottom of the filtering cylinder communicates with the top of the reservoir. According to the present invention, the problem that in the prior art, a large quantity of water resources are wasted due to the fact that rainwater cannot be utilized, is solved, and the effects of collecting, treating and storing rainwater in a garden, reducing rainwater waste, utilizing rainwater and reducing garden water, are achieved.

The invention relates to a treatment method for slight stony desertification in a karst mountainous area. The method includes the steps that a planting combination of economic fruit tree forest and crops is adopted for the same cultivated land unit, shrubland and unutilized land are mainly used for planting forests for conserving water supply, and a forest-glass composite ecological type is set up; vegetation structures are allocated in an optimized mode, through a land terracing technology, stone ridge slopes are repaired, built and changed into terracing, field production shortcut construction is matched, and through the matched construction of a rainwater collecting plateau, a catchwater, a desilting basin, a water conveying pipeline, a small cistern and a small pond, a slope rainwater collecting system is set up; an underground river is developed, an underground river irrigation pumping station is constructed, so that water resources are reasonably deployed, a soil moisture conservation technology and a water-saving irrigation technology are adopted, and a scientific and reasonable irrigation mode is set up. Through the treatment method, the slight stony desertification in the karst mountainous area is effectively treated, water and soil loss is reduced, the stony desertification trend is restrained, and the social economy and ecological construction develop harmoniously.

The invention discloses an ecological slope protection system with framework slope protection combined with sand drain water seepage and water diversion slopes. The ecological slope protection systemcomprises a slope top water channel which is evenly provided with a plurality of drainage outlets, and each drainage outlet communicates with a roadbed water channel at the bottom of a slope through aslope drainage channel; and the bottom of the slope top water channel is evenly provided with a plurality of vertical sand drains connected to greening units, and the slope surface is further provided with framework units. According to the ecological slope protection system disclosed by the invention, by combining the framework units and the greening units, landslide mass is protected from sliding; meanwhile, the friendly development of engineering and environment is ensured, and large-range infiltration of rainfall does not occur through the slope top water channel and the slope drainage channel, and necessary water resources are provided for growth of plants, so that the rhizomes of the plants form a natural protection net in the slope, not only the stability of side slopes is protected, but also contribution to restoration of ecological environment is made; and the ecological slope protection system has high practical value.

The invention provides a natural purification drainage system for coastal road construction in sponge-like city, which is characterized by comprising a split curbstone, a grass planting ditch, a permeable brick pavement walkway, a bioretention zone, a landscape stone dropping weir, a vegetation buffer zone, a gabion retaining wall and gabion slope protection, the invention is mainly used for the coastal road area in construction of sponge-like city, the invention achieves the natural accumulation and natural purification effect of the rainwater, and achieves other effects through a series of natural purification means, such as reducing rainwater pollution, increasing the groundwater level, preventing the road surface gathered water, relieving the pressure of the municipal drainage network,reducing the water and soil loss caused by rain and tidal erosion, the waste of water resources is reduced through the collection of rainwater, thus being energy-saving and environmentally friendly.

The invention provides a purification system for integrated culture of fishes and shrimps. The purification system comprises an integrated vertical subsurface flow wetland, a river channel, a water purification pond, a water storage pond and a culture pond, wherein the integrated vertical subsurface flow wetland is used for preliminary purification of a water source; the river channel is connectedwith the integrated vertical subsurface flow wetland through a water pipe for further water quality purification; the water purification pond and an outlet end of the river channel are isolated by anoverflow dam, thus promoting water quality; an inlet end of the water storage pond and an outlet end of the water purification pond are isolated by a subsurface flow dam; an outlet end of the water storage pond is isolated from the integrated vertical subsurface flow wetland by an isolating device; after the water quality is finally purified and monitored, water flows into the culture pond through a water pump; and freshwater shrimps and Ietalurus punetaus are mixed-cultured in the culture pond, and culture wastewater in the culture pond flows into the river channel through a drainage channelfor purification, and the water in the river channel then flows into the water purification pond and the water storage pond for circular purification. According to the purification system, by employing a four-stage water purification treatment system, the aquaculture wastewater can be used after being circularly purified, and zero wastewater discharge is almost realized, thereby avoiding pollution to the surrounding water environment.

The invention provides a water saving and collecting device for greening a roof, which can collect lost flooding water, rainwater and available household drained water at ordinary times to be used for irrigating and greening the roof. Waste of urban drinking water resources is greatly reduced, concave and convex water drainage plates in the device further guarantee ventilation of roots of plants, and the problem that the roots of the plants are rotted due to large quantities of accumulated water is avoided. The water saving and collecting device plays an important role in reducing waste of natural resources of China with the serious shortage of fresh water resources, reducing running cost to further develop urban greening construction, and accordingly improving living environments of people.

The invention relates to the field of sponge city construction, in particular to a sponge city construction based road rainwater collection and drainage system. The sponge city construction based roadrainwater collection and drainage system comprises a roadway area, a green belt area, a pavement area and a back green area which are respectively arranged on the road, a rainwater collecting deviceand a roadway drainage shaft which is used for draining rainwater collected through the rainwater collecting device are arranged in the roadway area, a soakage pit used for infiltrating rainwater below the ground is arranged in the green belt area, an overflow rainwater well, a rainwater collecting module, a water jet irrigation device and a main rainwater delivery pipeline are arranged in the back green area, and the overflow rainwater well, the rainwater collecting module, the water jet irrigation device and the main rainwater delivery pipe are mutually communicated with the rainwater collecting device, the roadway drainage shaft and the soakage pit through a rainwater collecting pipe. By the arrangement, the rainwater can be effectively collected and timely dredged and utilized, the problem about urban road waterlogging is greatly alleviated, and the system is energy saving and environment friendly and can be widely promoted.

The invention relates to the technical field of urban construction, in particular to a road-dependent rainwater purification and storage ecological utilization system in northern cities, comprising aroad central drainage green plant unit, a roadside drainage unit, a roadside surface green plant purification unit, an underground seepage storage unit and rainwater wetland gardens, wherein due to the road central drainage green plant unit, the surface water permeable area of the pavement is increased; the drainage ditch can effectively reduce the garbage blocking the pavement drainage outlet, accelerate the drainage velocity, and prevent the snow water containing snow melting agent from flowing into the green belt in winter; due to the sidewalk drain ditch, excessive rainwater on the pavement is introduced into the roadside surface green plant purification unit to increase the infiltration area and time of the rainwater; the underground seepage storage unit is set up to store rainwater for later use; due to the rainwater wetland gardens, the rainwater infiltration area and rainwater retention time can be enlarged in rainy season; and the rainwater wetland gardens and the roadside surface green plant purification unit are connected in ditches, thus greatly reducing the amount and area of road water.

The invention belongs to the technical field of geotechnical engineering, and discloses a comprehensive prevention and control system applied to a gravel soil side slope. According to the comprehensive prevention and control system, the good slope anti-seepage effect is achieved by burying drainage blind pipes and rapid drainage pipes in a slope surface layer soil body, arranging an intercepting ditch at the top of the slope, arranging a drainage channel at the foot of the slope and performing planting and greening on the slope surface, and the influence of surface water infiltration such as rainfall on the slope stability is reduced; after spring type spiral steel bars are put into pile holes, concrete doped with an expanding agent is poured into the pile holes to form miniature anti-slide piles, prestressed anchor cables are arranged to improve the shear strength of the side slope, and the stability among a potential sliding surface upper landslide mass, a potential sliding belt anda lower stable soil mass is enhanced; a plain concrete retaining wall is arranged at the foot of the slope to support the side slope, and a deep drainage pipe is drilled in the concentrated seepage area to effectively cut off the concentrated seepage, and water is collected and guided out of the slope; and finally, the anti-seepage drainage and reinforcement effects on the side slope are remarkable, and compared with traditional electro-osmosis drainage, energy consumption is reduced, economic benefits are remarkable, and operability is high.

The invention discloses a reinforcement protective structure of a large spoil disposal area in a mountainous area, which is capable of effectively solving the technical problem of instability of the large spoil disposal area in the mountainous area, reducing water loss and soil erosion and avoiding the anthropogenic geologic hazard problems caused by the abandoned spoil. The reinforcement protective structure comprises anti-slide piles, a retaining plank, a macadam reversed filter, a main water seepage blind ditch, branch water seepage blind ditches, an annular catchwater, a longitudinal drainage trench, catchwaters and a drainage chute, wherein the anti-slide piles are arranged on an exit slope toe of the spoil disposal area and distributed at intervals along the cross direction of a groove; the retaining plank is arranged on the side of the anti-slide piles near to the spoil disposal area; the macadam reversed filter is filled behind the retaining plank; the main water seepage blind ditch is longitudinally arranged along the center of the groove on the bottom of the spoil disposal area; along the centre of the groove on the bottom of the spoil disposal area, the branch water seepage blind ditches are distributed in the shape of branches toward slopes on two sides and communicated with the main water seepage blind ditch; the annular catchwater is arranged along the surrounding mountain having more than 1m elevation from the top of the spoil disposal area, and stretched and connected to a natural groove on the exit of the spoil disposal area; the longitudinal drainage trench is arranged along the top center of the spoil disposal field and communicated with the natural groove; the catchwaters are arranged in the shape of branches from the longitudinal drainage trench of the spoil disposal area to the top two sides of the spoil disposal area and communicated with the longitudinal drainage trench; the drainage chute is arranged outside the retaining plank.

The invention discloses an arid area arbor integrated irrigation system and an irrigation method, and particularly relates to an arid area arbor integrated irrigation system and an irrigation method in the field of water and soil loss prevention and ecological restoration. The arid area arbor integrated irrigation system comprises slope catchwaters, confluence ditches, a grit chamber, an impounding reservoir and a water supply pipe, and the slope catchwaters are connected in series from top to bottom through the confluence ditches. The arid area arbor irrigation method comprises the followingsteps that A, water and soil running off are collected; B, the collected water and soil running off are gathered; C, loam sedimentation treatment is carried out; D, the treated water is stored; E, abrors are irrigated. According to the arid area arbor integrated irrigation system and the irrigation method, construction is convenient, the maintenance cost is low, the arbors can be irrigated stablyfor a long time, the arbor transplanting survival rate can be effectively increased, the plant later growth effect is guaranteed, and meanwhile water and soil loss can be effectively prevented and controlled.

The invention relates to the field of matched cultivation methods preventing stagnant water in upper soil for planting citrus in a rice field, and discloses a wide-bed deep-ditch earthing-up ridging method. The plow pan of the rice field is broken during ridging, the characteristic that the plow pan is hard and retains water is overcome, and the purpose of preventing stagnant water in upper soil for planting citrus in the rice field is achieved; ditches (2) are backfilled with a backfill surface oil layer, a modified soil material layer and a backfill soil layer from bottom to top, and the purpose of making soil fertile is achieved; a surface soil stripping technology is utilized to apply stripped surface soil to land reclamation, loss or waste of the earth surface mellow soil source is effectively prevented, and soil fertility is maintained; drainage channels (1) are dug to form a smooth drainage network, and stagnant water is rapidly drained; field planting points (7) are determinedaccording to the plant and row spacing of 2 meters*5 meters. The method has the advantages of simple soil preparation structure arrangement, convenient implementation and good early fruiting and highyield effect.

The invention discloses a liquid gas gasifying method and a circular type gasifying device thereof. The method has simple process as well as energy saving and environment protection. The gasifying device has simple structure and is energy-saving and environment-friendly. The gasifying method comprises the following steps: the hot waste gas at the discharge outlet of a boiler is used for heating water through a heat exchanger, the heated water is sprayed on a gas holder and gasifies the liquid gas through heating, after that, the water is recovered and delivered to the heat exchanger through a water supply device for second heat exchange with the hot waste gas. The gasifying device comprises a heating appliance consisting of a sheet heating body and a tube type heating body, the heat exchanger arranged on the heating appliance and consisting of a heat absorption pipe coil, a spraying device connected with the outlet of the heat absorption pipe coil, a catchwater channel arranged relative to the spraying device and connected with a purifying tank, and a water pump connected between the inlet of the heat absorption pipe coil and the purifying tank.

The invention discloses a water system communication system and an implementation method thereof. A water system comprises dams, lakes and rivers, and the dams communicate with the lakes through pumpstation water lifting and draining systems and open channel landscape purification systems; if important traffic roads, high-rise buildings or high mountain zones are not arranged between the lakes and the rivers or between the two lakes, the lakes communicate with the rivers through the open channel landscape purification systems, and the two lakes communicate with each other through the open channel landscape purification systems; or / and if the important traffic highways, the high-rise buildings or the high mountain zones are arranged between the lakes and the rivers or between the two lakes, the lakes communicate with the rivers and the two lakes communicate with each other through a jacking pipe communication system, and the jacking pipe communication system penetrates through the important traffic highways, the high-rise buildings or the area below the high mountain zones. The water system communication system is simple in structure and low in cost, waterlogging drainage is effectively achieved through drainage of the drainage channel and lake flood storage, the drought resisting function is effectively achieved through a water lifting pump station, landscape aquatic plants are purified through the lakes and the drainage channel, and the greening water landscape effect is achieved.

The invention discloses an ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and a construction method thereof. The structure comprises a first-level abutment, a second-level abutment, a third-level abutment and a fourth-level abutment which are distributed in a stepped mode from top to bottom along a mountain. The first-level abutment comprises a plurality of layers of integrated plastic-steel grids, a first-level bagged aggregate layer is arranged on the outside of the integrated plastic-steel grid away from the mountain, and a reinforced concrete panel is arranged on the outside of the first-level bagged aggregate layer. The second-level abutment, the third-level abutment and the fourth-level abutment each comprises a plurality of evenly distributed integrated plastic-steel grids, an aggregate reversed filter is arranged at the front ends of the integrated plastic-steel grids, a panel is arranged outside the aggregate reversed filter, a cap beam is arranged at the bottom of the panel and the bottom of the aggregate reversed filter, the cap beam is provided with a platform, and a catchwater is arranged on the platform. Compared with a traditional reinforced soil structure, the ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure has the advantages of being short in work time, convenient and quick to construct, high in strength, high in bearing capacity, large in friction coefficient, high in shock resistance, small in occupied space and the like.

The invention provides a seeping rainwater pollutant intercepting treatment system for residences, comprising a pavement, rainwater collection wells, a guide pipe, a pollutant intercepting well, a filter well, a rainwater storage module, a drain pipe, a municipal network, a lawn, a regulation and storage reservoir, a water pump and a water pumping pipe. The seeping rainwater pollutant interceptingtreatment system for residences has the advantages that the structure is simple, the stress bearing performance is good, the system is capable of recycling, storing, filtering and purifying rainwater, the water ponding problem is effectively solved for residences, the rainwater regulation and storage function is achieved, climate conditions are improved for the residences, the hot island effect is relieved, the system can also improve noise pollution for residences, the problems, for instance, an existing urban drainage network system is unable to solve inner waterlogging due to storm runoffscan be solved before a storm, automatic control is provided for rain collection, pollutant interception, storage, discharging, peak-weakening regulation and storage, inner waterlogging relief and thelike, and the system is ecological and environmentally friendly and helps improve underground water resources, the ecology and other environments.

The invention provides an efficient ecological purification system for a farmland discharge and a building method of the efficient ecological purification system for the farmland discharge, and belongs to the technical field of agricultural non-point source pollution treatment and the technical field of agricultural engineering. The system is composed of a farmland escape canal, detention ponds, awater distribution canal, an integrated-flow constructed wetland, a porous structure protective slope, a main discharge canal and a return pipeline. According to the efficient ecological purificationsystem for the farmland discharge and the building method of the efficient ecological purification system for the farmland discharge, an efficient treatment mode is provided for rural non-point source pollution, and integrated ecological means for slope protecting and pollutant intercepting are built for regulation of black and odorous rivers and eutrophic rivers at the same time, and the efficient ecological purification system for the farmland discharge and the building method of the efficient ecological purification system for the farmland discharge are low in capital construction investment, low in operating cost and convenient to operate and manage, has a good landscape effect, and has wide application prospects.

The invention discloses a novel method applicable to treatment of a seasonal waterlogged coal-mining subsidence land. The method is characterized in that a water collection control project is utilized for comprehensively balancing the water and soil resources in a subsidence area, so as to solve the problem that unsmooth draining in the subsidence land leads to decrease of the quality of cultivated lands; the subsidence land is reconstructed into a quality land capable of draining in case of flooding and irrigating in case of drought. The method has the advantages that 1, a plurality of dispersed water collection pits / ponds are constructed to achieve the space regulation of the water resources as well as improving the irrigating and flood draining support capacity; 2, the water in the dispersedly constructed pits / ponds is able to improve the biodiversity of the treatment area; 3, the pits / ponds construction solves the problem of the earth resources in land reclamation of a bottomland in the subsidence area.

The invention discloses balcony roof organic imitation field cultivation equipment, which comprises a cultivation box made of a heat preservation material, wherein a cover plate is arranged at the topof the cultivation box; a plurality of cultivation holes are formed in the cover plate; a water storage tank is arranged at the bottom of the cultivation box; a perforated plate is arranged between the water storage tank and the cultivation box; a full-liquid reflux device is arranged on the water storage tank; and the water is discharged after the water under the soil is fully permeated. With this arrangement, the balcony roof is well ventilated, and even relatively sealed air can still enter the cultivation box from the gap around the stem of the plant. The evaporation rate of soil moisturein the cultivation box is slow, the soil temperature is relatively stable, and is close to the average temperature, so that the problems that high temperature and water shortage of plant roots in high temperature period cause poor growth or death, soil is easy to freeze and destroy root system during low temperature and frost period, heavy rain causes soil and fertilizer loss and blocked sewers,water accumulation causes anaerobic respiration of roots to produce toxic substances, water evaporates quickly and soil salinization hardening is easy to occur when watering too many times, and spaceis large for weeds to grow are solved. All experimental plant varieties grow well.

The invention discloses a sponge city road drainage system. The system comprises a drainage channel dug in a roadbed, an annular groove is dug in the roadbed, the annular groove is communicated with the drainage channel through a flow guide groove, a first baffle is slidably connected in the annular groove, and a second baffle is fixedly connected in the annular groove. The first baffle and the second baffle are elastically connected through a first spring, a filter screen is embedded in the flow guide groove, an arc-shaped groove is formed in the inner wall of the annular groove, and a watersupply pipe communicating with the annular groove is embedded in the roadbed. Rainwater containing a large amount of pollutants in the initial stage is guided into a sewage treatment system through ablow-off pipe, the road is gradually flushed cleanly by the rainwater as time goes by, and cleaner rainwater in the later stage can be directly guided into a designated place through the water supplypipe to be collected, so that the rainwater on the road surface is treated by stages, the rainwater absorption efficiency of a sponge city is guaranteed, and meanwhile, a polluted water source can betreated.