182 results about "Subsurface drainage" patented technology

An apparatus for the enhancement of water quality is provided for purging a low flow area of a subterranean water distribution system. The apparatus can include: a water carrier system for transporting water through the apparatus, a flow control valve for adjusting the flow rate of water through the system; a programmable solenoid controller for activating and deactivating the flow control valve; electronic and/or optical sensing devices for measuring water quality; a data access and programming port; and an electronic control system. The components cooperate to provide a means for automatically measuring water quality and then purging water from the low flow area as required. The apparatus can discharge directly to a below ground drain such as a storm drain, sewer or drain field. Alternatively, the apparatus can have an above ground downwardly directed discharge.

Methods, systems and compositions for a green sorption media for bioretention soil amendments in drainfields for on-site waste water systems filled with the green sorption media to foster an anaerobic or anoxic environment saturated. The green sorption media includes one or more recycled materials, including tire crumb, sawdust, orange peel, coconut husks, leaf compost, oyster shell, soy bean hulls and one or more naturally occurring materials including peat, sands, zeolites, and clay. The wastewater filtration system for a passive drainfield includes the green sorption material mixture, a cell including baffled compartments and a riser, the cell filled with green sorption material mixture to provide an alternating cycle of aerobic and anoxic environments, an influent distribution system to distribute the influent over the cell, and a piping system arranged for dosing the cell to sustain the functionality of the green sorption material mixture to remove nutrient content in wastewater.

The invention relates to a saline-alkali soil irrigation and drainage ecological improvement method, comprising two parts, namely a composite gridded underground drainage brine discharging system and a water-saving irrigation washing system. The composite gridded underground drainage brine discharging system is formed by the way that a gridded drainage brine discharging network composed of a water absorption tube (branch drain pipe) and a blind drain is arranged below a saline-alkali soil layer, and salty underground water and washing influent seepage are discharged outside an improved region by virtue of two paths, namely the blind drain, the water absorption tube (the bran drain pipe), a collector pipe (main drain pipe) and the water absorption tube as well as the collector pipe; and the water-saving irrigation washing system is in charge of washing salinity in soil by adopting one or more than two measures of partition irrigation, estuarine rotation irrigation and intermittent irrigation. By adopting the method provided by the invention, the saline-alkali soil can be uniformly and efficiently improved, water resource can be saved, improvement time can be reduced, and better social, ecological and economic benefits can be achieved.

A method for the creation of subsurface water management systems that place subsurface drainage lines at a consistent grade and within defined elevation bounds throughout a field with topographical undulation and inconsistent slopes, incorporate control weirs for dividing the subsurface into elevation and acreage zones, place and size surface to subsurface, size and determine inside surface of drainage mains and laterals according to the desired coefficient of the subsurface system, and determine the amount of water required at irrigation inlets in order to deliver a determined amount of water into the subsurface system for purposes of irrigation.

The invention discloses an urban subsurface drainage pipeline leakage locating system and a construction method thereof. The urban subsurface drainage pipeline leakage locating system comprises a drainage pipeline, a concrete layer wrapping the outer side of the drainage pipeline, waterproof humidity detection devices, a wire pipeline and a locating and pre-warning device. The concrete layer is provided with a plurality of U-type groove-shaped waterproof layers in an embedded manner, and the open ends of the waterproof layers are in sealing connection with the drainage pipeline. The waterproof humidity detection devices are arranged in the waterproof layers in an embedded manner and used for reading humidity data, and the waterproof humidity detection devices comprise controllers, humidity sensors and wireless receiving and transmitting modules. The controllers are used for encoding the humidity sensors. A wire is arranged in the wire pipeline, one end of the wire sequentially penetrates the wire pipeline, the concrete layer and the waterproof layers to be electrically connected with the waterproof humidity detection devices, and the other end of the wire is connected with a solar silicon cell panel. The locating and pre-warning device is used for locating and pre-warning during leakage of the drainage pipeline. The controller is used for comparing codes and humidity data of the humidity sensors with pre-stored humidity data and sending comparison information and the codes to the locating and pre-warning device through the wireless receiving and transmitting modules. The urban subsurface drainage pipeline leakage locating system has the advantage of achieving real-time pre-warning and locating during leakage of the drainage pipeline.

The invention provides a horizontal and vertical combined underdrainage device for improving interlayer soil of coastal mud flat reclamation area farmland. According to the device, coastal mud flat saline-alkaline land is provided with salt leaching channels, drainage bodies, concealed water flow collection and water suction conduits and open drainage ditches. The concealed water flow collection and water suction conduits are buried under the coastal mud flat saline-alkaline land according to the line spacing of 17-25 meters. The salt leaching channels are respectively provided with a vertical shaft every 4-6 meters in the length direction of the concealed water flow collection and water suction conduits, and the drainage bodies are arranged in the vertical shafts. The water inlet ends of the concealed water flow collection and water suction conduits are higher than the water outlet ends of the concealed water flow collection and water suction conduits, and the water outlet ends are connected with the open drainage ditches. The invention further provides a combined drainage method. According to the method, salt in the soil of the coastal mud flat saline-alkaline land is leached and flows into the vertical shaft type salt leaching channels along with water flow, and the concealed water flow collection and water suction conduits collect the water flow in the salt leaching channels and guide the water flow into the open drainage ditches. The device has the advantages of being reasonable in structure, convenient to construct and install, low in cost, short in improvement period, fast in effect, capable of being widely applied and popularized in the areas with the irrigation and drainage conditions and especially suitable for improving the highly-saline soil of the coastal mud flat reclamation area.

The invention relates to a pneumatic underground drainage pipeline dredging device, which comprises a shovel plate, a front mounting disk, a front flange barrel, a support cylinder, a thrust cylinder, a support ring, a corrugated bag, a back flange barrel, a back mounting disk and a back support cylinder. After the pneumatic underground drainage pipeline dredging device is placed into a drainage pipeline needing to work, the cylinders act respectively according to an air channel sequence, and self-walking can be realized in the drainage pipeline; meanwhile, a corrugated pump is driven to absorb and discharge sludge, and the sludge can be conveyed onto the ground through the drainage pipeline to realize cleaning. The device is simple in structure, and a pneumatic driving way is adopted. The pneumatic underground drainage pipeline dredging device can be suitable for urban underground drainage pipeline dredging operation.

The present invention is directed to a subsurface drainage system for a playing surface. The subsurface drainage system includes a subgrade, an intermediate layer disposed over the subgrade, a layer of semi-permeable filter fabric disposed over the intermediate layer, an upper permeable layer disposed over the layer of filter fabric and on which the playing surface is disposed, and a hydronic piping network disposed in the upper layer near the layer of filter fabric. The layer of filter fabric has a permeability less than the permeability of the intermediate layer and such that the layer of filter fabric functions as a perching layer to support a perched water table above the filter fabric. The hydronic piping network is positioned within the perched water table such that the water of the perched water table functions as a heat exchanger to facilitate heating and cooling of the upper layer upon the hydronic piping network being heated or cooled.

Disclosed is a PME unit comprising a support pipe disposed within an aperture of a support module. Advantageously the support pipe is disposed within the apertures of a plurality of spaced support modules. The PME unit is placed within an excavation to provide a subsoil fluid absorption system.

A water sewer drainage system particularly directed to prevent spread of West Nile disease includes an underground water drain off region, a ground level opening to a down passage to the drain off region, a sewer grate across the ground level opening and an insect block in the down passage below the sewer grate. The insect block inhibits insects from gaining access to the drain off region while permitting flow of water through the system.

The invention discloses a reclamation method for rural residence lands on a coastal saline land region. The method includes the first step that building rubbish of the waste residence lands is cleared out; the second step that land leveling is performed on a reclamation area; the third step that water-salt control is performed, according to road planning, the treated reclamation area is divided into land blocks, new irrigation and drainage projects are constructed, and subsurface drainage pipes, water-collecting pipes and water-collecting wells are laid; the fourth step that biological improvement projects are constructed, organic fertilizer and planting green manure are applied to increase the content of organic materials and microorganisms in soil, improve the activity of the soil and complete soil reclamation of the residence lands. According to the method, the residence lands wasted in rural districts are reclaimed into cultivated lands, the utilization rate of the lands is improved, the agricultural acreage is increased, the technologies of land arrangement, water-salt control and biological improvement are organically integrated, and therefore the soil productivity of the residence land can be effectively recovered and farm land ecological environment can be improved. Thus, the reclamation method for the rural residence lands on the coastal saline land region is a practical technology method.

The invention provides a method for simply and conveniently detecting nonmetal underground drainage pipeline leakage and a device. The method comprises the following steps: a detector is used for detecting the traverse pressure of a buried pipeline with water, an independent resistance measuring apparatus is used for detecting a soil resistance value above the buried pipeline, a detection electrode is inserted for adjusting the size of a detection electric current sent out by the detector according to different soil resistance values, an electric current detection device which is connected to the detection electrode is used for collecting leakage electric currents in real time and transmitting data of the electric current detection device to the measuring apparatus, and a computer is used for analyzing so as to obtain the accurate position of a damage pipeline.

A method for segmentation of underground drainage pipeline defects based on full convolutional neural network includes steps of: collecting a data set of the underground drainage pipeline defects; processing the data set of the underground drainage pipeline defects; optimizing with a semantic segmentation algorithm; adjusting model hyperparameters; training a model; verifying the model; and testing the model. The method adopts a deep learning algorithm, optimizes the FCN full convolutional neural network, develops a semantic segmentation method suitable for complex and similar defect characteristics of underground drainage pipelines, and adopts real underground drainage pipeline defect detection big data, thereby realizing pixel-level segmentation of the underground drainage pipeline defects and providing better robustness and generality. The detection accuracy and efficiency of the underground drainage pipeline defects are effectively improved.

A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels that include a plurality of spaced apart tubular support members arranged to define a unit having a plurality of side edges, the tubular support members having a first end, a second end, and a sidewall extending there between. The drain structure panels further include at least one strut extending from each support member to another support member to latterly support the tubular support members. An anchor plate is positioned between at least two tubular support members. The anchor plate has an aperture formed there through sized and configured to receive a ground anchoring member for securing the drain structure panel to a ground surface.

A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure panel. The drain structure panels have a laterally extensive backing grid and a plurality of spaced apart tubular support members projecting therefrom. The tubular support members have at least one fluid flow opening formed through a sidewall so as to intersect a second end of the tubular support members at two rounded corners. The tubular support members are tapered so that the tubular support members are nestable with the tubular support members of an identical drain structure panel when the drain structure panels are stacked.

A construction method for railway groundwater cuttings in desert areas, characterized in that: (1) using crawler excavators to excavate the cuttings to 0.3m above the groundwater level; (2) reducing the groundwater level by combining well points and drainage ditches on both sides; (3) , Use Larsen steel sheet piles to protect the fine sand on both sides, prevent the fine sand from collapsing, excavate underground water blind ditch pits, and construct underground drainage systems such as underground water blind ditch; 1m below the elevation and carry out tamping, the cutting base and subgrade bed are replaced and compacted; (5) Slope brushing and protection of the cutting side slope. The beneficial effect of the present invention is: the construction method of the railway underground water cutting in the desert area of ​​the present invention mainly solves the technical problem of precipitation during the excavation of the road cutting and the construction of underground drainage facilities when the road cutting is built in the desert area and the groundwater is abundant. In the process of dewatering, the well point is used for dewatering, which effectively solves the technical problem of avoiding the collapse of powder and fine sand during the excavation of the foundation pit.

The invention discloses a professional detection method for an urban underground drainage pipeline. The professional detection method comprises the following steps that pipeline information of a drainage pipeline to be detected is acquired, wherein the pipeline information at least comprises pipeline distribution information and pipeline pipe diameter information; on the basis of the pipeline distribution information, a video detection module of a pipeline detection robot is used for acquiring a preliminary detection image of the drainage pipeline to be detected; the preliminary detection image is processed, and suspected fault part information of the drainage pipeline to be detected is extracted; the video detection module, a sonar detection module and a distance detection module of the pipeline detection robot are used for further detecting a suspected fault part so as to obtain a detection result of the suspected fault part. According to the professional detection method for the urban underground drainage pipeline, a to-be-detected pipeline can be simultaneously subjected to video detection and sonar detection, the detection is convenient and fast, time and labor are saved, theworking efficiency is high, and the same fault point can be positioned through the video detection module and the sonar detection module at the same time.

The invention discloses a repairing device for an urban underground drainage pipeline. The repairing device includes a disk-shaped horizontal plate, a horizontal column and a capacity box fixedly sleeving the horizontal column, a clearing device for clearing impurities on the inner wall of the pipeline is installed on the horizontal plate, and the side wall of the capacity box is fixedly connectedwith a repairing mechanism for repairing the underground drainage pipeline. The invention further provides a repairing method of the urban underground drainage pipeline. The repairing method includesthe following steps that S1, a body of the repairing device is placed in the underground drainage pipeline; and S2, the height of a telescopic rod on the horizontal plate and a limiting pin and a pinhole on a sleeve and a hollow pipe are adjusted to adjust the heights of a brush and an arc-shaped block. According to the repairing device and method for the urban underground drainage pipeline, theinner wall of the pipeline is cleared and then cleaned through a cleaning device, the pipeline repairing effect is ensured, through arrangement of a motor, the repairing mechanism can be driven to rotate to make pipeline repairing more uniform, the clearing height and repairing height can be adjusted by the clearing device and the repairing mechanism, and the repairing device is suitable for drainage pipes with different pipe diameters and sizes.

A subsurface drainage channel comprises at least one drainage device. The drainage device is arranged downwards from the surface and comprises a columnar permeable unit and a coating layer, wherein the permeable unit comprises high-porosity fillers, and the coating layer coats the permeable unit and is permeable. By the design, the contact circulation mode of surface runoff water and soil is changed from traditional horizontal distribution into extension and diffusion towards the subsurface by columnar surface area, the occupied usable area of the subsurface drainage channel on the surface can be substantially saved, drainage area dozens of times to hundreds of times more than the original is created, land utilization efficiency is improved, the service life of the subsurface drainage channel is effectively prolonged, and further, the surface runoff water can be guided and conserved into an underground water source for use.

A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure panel. The drain structure panels have a laterally extensive backing grid and a plurality of spaced apart tubular support members projecting therefrom. The tubular support members are tapered so that the tubular support members are nestable with the tubular support members of an identical drain structure panel when the drain structure panels are stacked.

The invention relates to the technical field of drainage, and in particular relates to an urban groundwater drainage pipe network repair method which comprises the following operation steps of draining sewage in a groundwater drainage pipe network, and clearly cleaning sludge in the groundwater drainage pipe network to reach the repair requirement; laying a layer of mulching film on the bottom ofa pipeline to be repaired firstly, and then enabling a repair lining material to be in place by adopting a mechanical dragging manner; mounting ultraviolet curing equipment at a pipe mouth of the repair lining material, performing inflation on a lining pipe to enable the lining pipe to cling to the pipeline to be repaired, and illuminating the lining pipe with the ultraviolet curing equipment to enable the lining pipe to be cured to form a new pipeline; cutting a tying head of the pipe mouth with a cutting tool, and performing mouth plastering and edge sealing with rapid hardening cement; anddisassembling a water blockage air bag, and putting the pipeline into water passing use. The urban groundwater drainage pipe network repair method can realize that a great quantity of excavated groundis avoided during groundwater drainage pipe network repair, improves the working efficiency of repairing the pipeline and saves the cost.