733results about "Soil drainage" patented technology

The present invention relates to the technical field of land engineering, and relates to a water and soil resource comprehensive improvement method for loess hilly and gully region channels. The method comprises: (1) soil layer general survey: performing soil layer thickness survey and soil nutrition content measurement; (2) soil body reconstruction: on the basis of soil layer general survey data, selecting a soil body construction mode, and performing soil body profile reconstruction, soil body nutrition reconstruction and field parcel arrangement; and (3) constructing a water resource regulation and control system for the loess hilly and gully region channels. According to the present invention, investigation and survey are performed firstly, then treatment is performed, water and soil are treated simultaneously, and steps are coordinated, so that ecological treatment of the loess hilly and gully region channels is finally completed, and comprehensive improvement of water and soil resources is achieved. The present invention ensures mechanical cultivation of the region after the improvement, effectively increases the area of the irrigable land and the area of the non-irrigated land, effectively improves the farmland quality and the grain yield, and effectively reduces the soil erosion amount of the channels.

A modular porous swale. The modular porous swale may comprise a porous concrete block and filtration joint. The porous concrete block may snugly fit within a trench having a lower portion filled with an absorption media. The absorption media may include gravel, activated alumina, bone char, biochar, bone char and activated alumina mixture, and biochar and activated alumina mixture. The porous concrete block may have a top surface inwardly-sloped to a nadir. The filtration joint may be disposed within the porous concrete block and along the nadir. The liner may cover one or more sides of the porous concrete block. The perforated pipe may be located within the absorption media. The filtration joint may substantially align above a portion of the perforated pipe when the modular porous swale is installed within the trench.

The invention discloses a lightweight aggregate-based steam-curing-free high-performance pipe culvert and a preparation method thereof, and belongs to the technical field of concrete pipe culverts. The lightweight aggregate-based steam-curing-free high-performance pipe culvert provided by the invention is prepared from the following raw materials by unit volume mass: 300-450 kg / m < 3 > of a sulfur-aluminum-iron series low-carbon cementing material; 800-920 kg / m < 3 > of solid waste-based lightweight aggregate; 300-550 kg / m < 3 > of solid waste-based artificial sand; 0-100 kg / m < 3 > of a mineral admixture; 0-50 kg / m < 3 > of an auxiliary material; 110-160 kg / m < 3 > of water; the concrete further comprises a water reducing agent and a retarder. The lightweight aggregate-based steam-curing-free high-performance pipe culvert can be demolded within 4 hours during molding, the demolding time is short, steam curing is not needed, the production cost is low, and the production efficiency is high; the obtained product is high in strength and good in impermeability and durability, and solid waste can be utilized in a high proportion.

The invention relates to the technical field of data processing, in particular to a rice field gate anti-clogging intelligent monitoring control method, which comprises the following steps of: acquiring multi-dimensional monitoring data of a gate at each monitoring moment in real time, and forming a multi-dimensional monitoring data sequence by the multi-dimensional monitoring data of the gate at each monitoring moment in each operation process; one gate operation process corresponds to one multi-dimensional monitoring data sequence; for any gate operation process, obtaining an optimized gate clogging coefficient of any gate operation process according to the multi-dimensional monitoring data sequence corresponding to any gate operation process; the method comprises the steps of obtaining an optimized gate clogging coefficient of each gate operation process, obtaining a gate clogging trend index by using the optimized gate clogging coefficient of each gate operation process, and carrying out gate clogging prevention intelligent monitoring control according to the optimized gate clogging coefficient and the gate clogging trend index of the current gate operation process. And early-stage, quantitative and trend monitoring of the clogging state of the gate is realized.

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

The ecological slope protection structure for water and soil conservation for water conservancy construction comprises soil retaining plates fixedly supported on slopes on the two sides of a river, planting grooves for planting green plants are formed in the soil retaining plates, a water pumping pipe is fixedly connected, and the outer contour of the water pumping pipe is sleeved with a rectangular shell moving in a reciprocating mode; the rectangular shell is fixedly connected with a spray head and a drainage pipe which is in through connection with the spray head, in addition, a salvage mechanism and a liquid pumping mechanism are further arranged on the soil retaining plate and used for cleaning floating objects on the surface of river water and pumping the river water for irrigation, and the salvage mechanism achieves salvage of the floating objects through matched action of a cylindrical roller and a filter plate; according to the ecological slope protection structure, by means of an automatic irrigation system, the utilization efficiency of water resources is improved, the soil retention capacity is enhanced, plant growth is promoted, water and soil loss is effectively prevented, and the ecological slope protection structure can be applied to the field of ecological slope protection especially under the drought condition. The ecological environment is protected and recovered.

The utility model relates to the technical field of agriculture, in particular to a field intelligent drainage device. According to the technical scheme, the device comprises a drainage pipe and a flashboard slidably installed on the inner side of the drainage pipe, the drainage pipe is provided with an automatic cleaning assembly and a detection assembly, the automatic cleaning assembly comprises a first rotating rod rotatably installed on the inner side of the drainage pipe, the first rotating rod is located on one side of the flashboard, and the outer side of the first rotating rod is fixedly connected with a plurality of fixing plates; a plurality of filter rods are fixedly mounted at one end of the drainage pipe and are inclined, and a second rotating rod is rotatably mounted on the inner side of the drainage pipe. Through mutual cooperation of the filter rod, the fixing rod, the fixing plate and the buoyancy box, impurities can be automatically intercepted and cleaned, the situation that the impurities block the right end of the drainage pipe and affect drainage operation is avoided, the water level in a field can be monitored, drainage is automatically conducted when the water level is high, and drainage is automatically stopped when the water level is low; and intelligent drainage can be performed on the field.

The invention relates to the technical field of intelligent control, in particular to an intelligent control method and system for a ditching and laying device. The method comprises the steps that real-time data of soil and terrain are collected and preprocessed, ditching parameters are calculated based on the preprocessed data, a dynamic feedback mechanism is introduced, and optimal ditching parameters are obtained; the method comprises the steps that firstly, a ditching auger is adjusted to conduct trench excavation based on optimal ditching parameters, biomass laying is conducted based on actual trench shape data after ditching is completed, the pressure feed speed is controlled, trench filling state data after laying is completed is obtained, a ditching path is planned, a preliminary planning path is obtained, the preliminary planning path is optimized, and an optimal planning path is obtained; the optimal planning path is converted into a control instruction, and intelligent control is conducted on the ditching and laying device. The problems that according to a control method of a traditional ditching laying device, calculation of the depth and the inclination angle of a ditching auger is not accurate, path planning tracking self-adaption is poor, and control precision is low are solved.

The invention belongs to the technical field of water conservancy projects, and particularly relates to a drainage ditch object blocking structure for water conservancy design and a using method of the drainage ditch object blocking structure. The object blocking structure comprises two opposite mounting plates; three rotating rods are arranged between the two mounting plates; rotating wheels are fixedly connected to the end parts of the two sides of the three rotating rods; the three rotating wheels located on the same side are jointly and rotationally connected with a rotating belt. Driven plates which are uniformly arranged are arranged on the opposite sides of the two rotating belts, and the two ends of each driven plate are fixedly connected to the adjacent rotating belts correspondingly; a filter screen is fixedly connected between every two adjacent driven plates, and the multiple filter screens and the multiple driven plates form a triangular conveying net structure. A collecting mechanism is arranged on the right side of the mounting plate and located on the drainage ditch, and the collecting mechanism is used for collecting sundries blocked by the object blocking structure; by arranging the rotating conveying net structure, sundries flowing along with water can be brought out, and therefore the situation that the sundries block the interior of the drainage ditch for a long time is avoided.

The invention relates to an irrigation and drainage channel structure of irrigation and water conservancy engineering and a construction method thereof, and belongs to the technical field of irrigation and water conservancy engineering, the irrigation and drainage channel structure of the irrigation and water conservancy engineering comprises a channel body, a plurality of cleaning groups are arranged in the channel body, and the cleaning groups are arranged at intervals in the length direction of the channel body; the cleaning set comprises a scraping piece rotationally arranged in the ditch body, the rotating axis of the scraping piece is perpendicular to the bottom wall of the ditch body, the scraping piece abuts against the bottom wall of the ditch body, the distance between the two ends of the scraping piece and the rotating axis is larger than half of the width of the ditch body, and the ditch body is provided with a driving assembly used for driving the scraping piece of the cleaning set to swing in a reciprocating mode. The drainage ditch has the advantages that sediments are not prone to being accumulated in the ditch body, and the drainage effect is effectively guaranteed.

The invention relates to the field of ditch digging equipment, in particular to a ditch digging device for highland barley field planting and a ditch and ridge combined irrigation and drainage method.The ditch digging device comprises a driving vehicle, a sliding block and a cleaning mechanism, a bucket can be vibrated during soil shoveling, soil in the bucket is shaken off, and the situation that the soil shoveling effect of the bucket is affected due to the fact that the soil adheres to the interior of the bucket is prevented; after the ditch is excavated, a hydraulic cylinder pushes a connecting block and a conical block to move into the ditch, the conical block abuts against the inner bottom wall of the ditch, a second spring pushes a conical extrusion block to abut against the inner side wall of the ditch, and a driving vehicle drives the conical block and the conical extrusion block to move, so that the excavation efficiency is improved; the inner wall of the ditch can be polished while digging is carried out, the labor intensity of workers is relieved, irrigation is carried out through sequential operation from a large field with the high terrain to a field with the low terrain, irrigation is carried out through waterlogging prevention operation, waterlogging prevention is carried out, and large-area waterlogging caused by concentrated rainfall is avoided.

The utility model relates to an ecological ditch for purifying farmland recession. The method is suitable for the technical field of ecological restoration. The technical problem to be solved by the application is to provide an ecological ditch for purifying farmland recession. According to the technical scheme adopted by the invention, the ecological ditch for purifying the farmland recession water is characterized by comprising an ecological ditch body, and a water inlet for introducing the farmland recession water is formed in the upstream of the ecological ditch body; the ecological permeable dam is arranged on the upstream of the ecological ditch body and can intercept suspended solids and particulate matters flowing through the farmland recession and provide adhesion and growth matrixes for microorganisms in the ecological ditch body; the water level adjusting structure is arranged in the ecological ditch body and can adjust the water level in the ecological ditch body, so that the ecological environment in the ecological ditch body is kept stable.

The invention provides a saline-alkali soil drilling and straw vertical burying integrated device and a vertical hole permeation enhancing improvement method, and belongs to the technical field of soil drilling and saline-alkali soil improvement. The saline-alkali soil drilling and straw vertical burying integrated equipment comprises a rack, the rack is sequentially provided with at least one set of drilling mechanism, feeding mechanism and soil covering mechanism from front to back, and the rack is connected with power equipment; the saline-alkali soil vertical hole permeation enhancement improvement method comprises the following steps that S1, straw bundles are manufactured; s2, flattening the land parcels; s3, drilling holes in the salinized soil to form vertical holes; s4, the straw bundles are placed in the vertical holes; s5, earthing and burying; s6, leaching the salinized soil, and accelerating vertical water and salt drainage by straw bundles; s7, after the straw bundles are buried for several years, the positions are changed, holes are drilled again, and new straw bundles are buried again; integrated automation of punching, feeding and soil covering can be achieved, and the straw vertical burying efficiency is improved; by adopting the vertical efficient permeation-increasing improvement method, the clay sandwich structure salinized soil can be efficiently, ecologically and continuously improved.

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

The utility model relates to the technical field of inner drainage of retaining walls, and discloses an inner drainage system suitable for a landscape retaining wall, which comprises a retaining wall, a clay layer and a permeable layer are arranged on the inner side of a vertical plate of the retaining wall, a water collecting pipeline extending along the length direction of the retaining wall is arranged in the permeable layer, and the water collecting pipeline is communicated with a plurality of water collecting wells. The multiple water collecting wells are arranged at intervals in the extending direction of the water collecting pipeline. The lower portion of the water collecting well communicates with a municipal rainwater pipeline through a drainage pipe, an anti-seepage layer for blocking seepage water is laid at the bottom of the water permeable layer, the anti-seepage layer is arranged between the water permeable layer and the clay layer, and the anti-seepage layer is arranged in a downward inclined and extending mode in the direction facing the water collecting pipeline; when water falls into the permeable layer, the water penetrates through the permeable layer or flows along the impermeable layer to be collected into the water collecting pipeline, then is discharged into the water collecting well and is discharged into a municipal rainwater pipeline through the drainage pipe. In this way, all surface water in the backfilling range is collected to the water collecting pipeline and then discharged into a municipal rainwater pipeline through the water discharging pipe.

The invention discloses an ecological maintenance structure for the geological environment of a slope in a high-altitude freeze-thaw area, and belongs to the field of ecological restoration and water and soil conservation of slopes in high-altitude frozen soil areas. Comprising a side slope platform, a slope surface is integrally formed on the rear surface of the side slope platform, a plurality of drainage channels are integrally formed in the front surface of the slope surface, a plurality of sedimentation tanks are formed in the position, located in front of the slope surface, of the upper surface of the side slope platform, and the drainage channels communicate with the sedimentation tanks correspondingly; the two adjacent sedimentation tanks are communicated with each other; a water pumping mechanism is arranged on the right side of the side slope platform; an irrigation mechanism is arranged on the upper surface of the slope surface; the irrigation mechanism comprises a mounting box; the water flow speed is slowed down through the interval variable angle design of the drainage channel; the surface runoff can be rapidly guided through the 30-degree slope section, and frost heaving caused by accumulated water permeation is avoided; the 5-degree gentle slope section promotes natural sedimentation of silt by reducing the water flow speed, reduces water and soil loss and disperses hydraulic scouring.

The invention relates to irrigation and water conservancy engineering, and discloses a platform paddy field permeation water catchment and anti-seepage bank protection linkage system and method, and the system comprises a water catchment system, a water collection system and a bank anti-seepage system; water catchment systems are uniformly distributed at the bottom of the plow pan of each layer of field except for the lowermost layer of field, and the water catchment systems are used for collecting infiltration water infiltrated from the plow pan; the water collection system is provided with a water collection pipe and a water collection pool, and the water collection pipe is connected with each layer of water catchment system and used for discharging collected seepage water into the water collection pool beside the lowermost layer of field parcel; the field ridge anti-seepage system is composed of an anti-seepage layer arranged in each layer of field ridge and used for isolating the field ridge from being soaked by water in the field steeping process. Irrigation water and underground water are effectively prevented from diffusing into the field ridge, and meanwhile secondary utilization of seepage water is achieved.

The utility model discloses a saline-alkali soil improvement and drainage device which comprises an improved drainage assembly, and the improved drainage assembly comprises an improved box, a stirring shaft, a stirring motor, stirring rods and water permeable holes. The stirring motor drives the stirring shaft and the stirring rod to fully stir a soil conditioner and water, it is ensured that the soil conditioner can be evenly mixed in the water to form effective improvement liquid, the improvement liquid is accurately conveyed to the spraying head through the water suction pump to be evenly sprayed, the improvement liquid evenly covers the surface of saline-alkali soil, and the saline-alkali soil quality is improved. The contact area of the modifier and the soil is increased, so that the soil improvement process is accelerated, and the improvement effect and the efficiency and accuracy of improvement operation are improved; through the design of the water collecting tank, redundant water on the saline-alkali soil can be effectively collected and is automatically discharged through the water discharging pipe and the water discharging pump, the automatic water discharging system can keep smooth water discharging of the saline-alkali soil, salinization aggravation caused by water accumulation is prevented, and meanwhile the labor intensity of manual water discharging is reduced.

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 utility model discloses a farmland drainage ditch supporting structure, and belongs to the technical field of farmland drainage ditch supporting structures. Comprising side protection plates, a telescopic bottom protection plate, a telescopic supporting mechanism and telescopic rods, the supporting mechanism is arranged between the two opposite side protection plates, the two sets of telescopic rods are arranged, are perpendicular to the two ends of the supporting mechanism and are rotationally connected with the two ends of the supporting mechanism, and the lower ends of the telescopic rods are perpendicularly fixed to the bottom protection plate; the side protection plates are arranged on the inner walls of the grooves, then the supporting mechanisms are supported between the two opposite side protection plates, then the length of the telescopic rods is adjusted, so that the bottom protection plate is arranged at the bottoms of the side protection plates, and through stretching adjustment of the supporting mechanisms, the bottom protection plate stretches and abuts against the bottoms of the side protection plates under driving of the telescopic rods; and the upper half area of the side protection plate can be supported through the supporting mechanism, the bottom of the side protection plate is supported through the bottom protection plate, and meanwhile the bottom of the groove can be protected.

The utility model relates to the technical field of agricultural water conservancy accessory devices, in particular to an ecological drainage ditch structure which can effectively purify sewage, reduce environmental pollution and prevent water and soil loss from influencing the normal drainage effect, so that the working efficiency and the effect of farmland drainage are improved, and the practicability is enhanced. A drainage groove is formed in the top of the ditch body, the vegetation layer is arranged on the surface of the drainage groove of the ditch body, the filtering layer is arranged at the bottom of the vegetation layer, the diversion layer is arranged at the bottom of the filtering layer, and the bottom of the diversion layer is connected with the bottom of the drainage groove of the ditch body through the supporting assembly; the ecological structure can effectively purify sewage and reduce environmental pollution through the combined action of the vegetation layer, the filter layer and the flow guide layer, and reduces labor cost and improves the drainage effect on farmland while maintaining ecological balance and saving energy and reducing emission.

The invention provides an urban green land runoff pollutant intercepting and discharging method and device, electronic equipment and a storage medium, and relates to the technical field of urban water environment governance, and the technical scheme is characterized in that real-time pollutant concentration data and water flow velocity field data collected by a monitoring node in a preset path are acquired; identifying a plurality of potential pollution source areas; calculating pollution source coordinates and a diffusion trend; a sequential control strategy for opening and closing the sewage intercepting valve is generated, the sewage intercepting valve is controlled to be opened and closed according to the sequential control strategy, and the sequential control strategy comprises relay flow guide parameters of adjacent valves; when the pollutant concentration data shows that the pollutant concentration exceeds a threshold value, the mobile emergency treatment unit is started according to a sequential control strategy, and multi-stage treatment of the polluted water body is executed. The urban green land runoff pollutant intercepting and discharging method and device, the electronic equipment and the storage medium have the advantages that dynamically changing pollution sources can be rapidly recognized and accurately positioned, and effective pollutant intercepting and treatment are achieved.

The invention discloses an arbor, shrub and grass-land and aquatic coordinated multilayer habitat transformation and restoration device and method. The device comprises a mobile vehicle body, a land restoration unit arranged on the mobile vehicle body and an aquatic organism putting unit connected with the mobile vehicle body; wherein the land remediation unit comprises a planting mechanism arranged on the mobile vehicle body; the planting mechanism comprises a lifting device connected with a bearing frame, a drill rod is arranged on the bearing frame, a water suction opening is formed in the lower end of the drill rod, a negative pressure pipe is arranged in the drill rod, and one end of the negative pressure pipe is communicated with a negative pressure drainage part; the output end of the first rotating device is in transmission connection with the negative pressure drainage part and further in transmission connection with the drill rod. Through cooperation of the land remediation unit and the aquatic organism putting unit, comprehensive remediation of an ecological system of a remediation area is achieved, when the planting pits are dug, the negative pressure drainage part pumps out accumulated water in the planting pits through the water suction openings and the negative pressure pipes, and it is prevented that the accumulated water influences follow-up seedling planting in the planting pits.

The invention discloses a movable flood drainage robot and a flood drainage method, and relates to the field of fire fighting equipment application. The movable flood drainage robot comprises track driving systems, a mounting frame is arranged between the track driving systems, a water pump is mounted at the top of the mounting frame, a water inlet is formed in one side of the water pump, and a soft water conveying pipe is arranged at the water inlet and connected with a movable water inlet pipe; the movable water pipe can be adjusted in height and rotated. By arranging the movable water inlet pipe capable of movably ascending, descending and rotating, the water pumping efficiency can be ensured, the situation that sludge, leaves and other impurities enter the water pump can be reduced, the movable water inlet pipe is adjusted to the position about 15-20 cm below the accumulated water liquid level through the lifting assembly, and the height of the movable water inlet pipe is synchronously reduced along with reduction of the liquid level; impurities floating on the liquid level are located above the movable water inlet pipe all the time and not prone to entering the water pump, when the movable water inlet pipe descends to the lowest working height, the movable water inlet pipe can turn over by 90 degrees to be perpendicular to the ground, and the impurities floating on the liquid level can be reduced and enter the water pump due to the filtering effect of the filtering assembly.

The invention relates to the technical field of agricultural water conservancy control, in particular to a high-standard farmland intelligent irrigation and drainage pump gate cooperative remote control method and system, and the method comprises the steps: generating a cooperative control instruction which restrains the power of a water pump and the opening and closing of a gate at the same time based on farmland water level information; establishing a conflict relationship between the response delay time of the water pump and the action delay time of the gate, and disassembling the cooperative control instruction into control sub-instructions for the water pump and the gate; when the soil under-saturation signal is continuously detected, the distribution adjustment control sub-instruction adjusts the output power of a water pump and controls the opening degree of an irrigation gate; when the water level overrun signal is continuously detected, the control sub-instruction is adjusted to control the opening degree of the drainage gate, and the output power of the water pump is reversely adjusted based on a backwater shock wave model triggered by the gate opening degree; the farmland water level information is detected in real time, and a cooperative control instruction is reconstructed. According to the invention, the problem of water level oscillation caused by misalignment of cooperative control of the water pump and the gate due to response time delay difference is effectively solved.

The invention relates to a saline-alkali soil water collection irrigation and drainage dual-purpose ditch which comprises a plurality of water collection ditches. The bracket is detachably connected to the top of the water collecting ditch and is formed by splicing a plurality of sections; the rainwater collecting irrigation mechanism comprises a rainwater collecting assembly, a first-stage irrigation assembly and a second-stage irrigation assembly, and the rainwater collecting irrigation mechanism has a rainwater collecting mode, a natural irrigation mode and a strong irrigation mode; in rainy days, the rainwater collecting irrigation mechanism is in a rainwater collecting mode, and the rainwater collecting assembly is started to collect rainwater into the water collecting ditch; when the water in the water collecting ditch is sufficient, the rainwater collecting irrigation mechanism can be in a natural irrigation mode, and the first-stage irrigation assembly is started; when the rainwater collecting irrigation mechanism is in a strong irrigation mode, the secondary irrigation assembly is started, anti-seepage cloth is laid on the inner wall of the water collecting ditch, concealed pipes are buried below the bottom wall of the water collecting ditch, and the anti-seepage cloth is located above the concealed pipes. The system can realize collection, storage and utilization of rainwater, provides necessary fresh water resources for improvement of the saline-alkali soil, is combined with the concealed pipes, does not affect drainage, and has double effects of water collection irrigation and salt drainage.

To construct a vertical hole drainage channel with a predetermined depth from the ground surface by performing vertical movements of excavation a plurality of times, and to provide a vertical hole drainage channel construction machine capable of measuring the properties of soil pulled up from the ground surface by an excavation part along with this construction, and a construction method using this vertical hole drainage channel construction machine.SOLUTION: A vertical hole drainage channel construction machine of the present invention is a vertical hole drainage channel construction machine that constructs a vertical hole drainage channel X of a predetermined depth from the ground surface by performing vertical movements of excavation a plurality of times, and has an excavating part 20 for excavating soil, a body frame 10 for holding the excavating part 20, and a traveling part 30 for moving the body frame 10.SELECTED DRAWING: Figure 1

The utility model provides a manual hole digging pile side slope retaining structure which comprises a plurality of pile bodies, the pile bodies are arranged at intervals in the length direction of a side slope, the bottoms of the pile bodies extend to the position below a side slope toe, holes are formed in the pile bodies in a manual hole digging mode, retaining walls are arranged in the holes, the retaining walls comprise a plurality of retaining wall units from top to bottom, and the retaining wall units are arranged in the retaining wall units. Every two adjacent retaining wall units are connected in an inserted mode, a top beam is arranged at the tops of the pile bodies, the pile bodies are connected into a whole through the top beams, a surface layer is arranged on the sides, away from the slope, of the pile bodies, and the surface layer is connected with the pile bodies through short ribs. The structure is small in construction working face, mature in technology, low in manufacturing cost and suitable for clay, rock and other soil layers with good stability, and the slope excavation depth does not exceed 8 m.