157results about "Geotextiles" patented technology

A woven silt fence fabric includes two or more distinctly different colors of warp yarns in the machine direction. The woven silt fence fabric includes a first woven fabric portion to be installed in the ground having a first color that is distinctly different from a second color of a second woven fabric portion to be installed and remain exposed above the ground.

Permafrost thawing prevention may involve deploying a cooling geotextile onto a permafrost soil. The geotextile may include a biomass scaffold comprising natural plant-based fibers. The geotextile may further include a cellulose layer comprising cellulose fibers laminated onto the biomass scaffold such that the cellulose fibers are physically entangled with the plant-based fibers. The geotextile may further include a hydrophobic and biodegradable coating which defines at least one surface of the geotextile. The geotextile may be optically opaque, exhibits high solar reflectivity, and maintains high mid-infrared emissivity to enable passive radiative cooling.

A woven silt fence fabric includes two or more different warp yarns having different cross-sectional shapes in the machine direction and / or two or more different fill yarns having different cross-sectional shapes in the cross-machine / transverse direction. The woven silt fence fabric includes one or more marker yarns having a different color than adjacent yarn(s) to thereby identify one or more of a grade line, install line, monitor line, and / or high visibility line.

The whole reservoir anti-seepage reservoir of the pumped storage power station comprises a seepage control structure, a drainage collection system and a seepage monitoring system, the seepage control structure comprises a reservoir bottom seepage control structure and a reservoir bank seepage control structure, and the reservoir bottom seepage control structure comprises a geomembrane, a broken stone hardcore, a reservoir bottom transition layer, a geotechnical mat and geotechnical cloth; the reservoir bank seepage control structure comprises a geomembrane, a reservoir bank cushion layer, high-strength woven geotechnical cloth and a wave wall. On the basis of the characteristics of deformation and the like of different areas of the reservoir basin, adaptive seepage control types are designed and combined to form a complete full-reservoir-basin seepage control structure, seepage pressure value information of monitoring points is collected in real time through the seepage monitoring system, and the seepage pressure value information of the monitoring points is acquired in real time. And a leakage point position judgment method is provided to determine a local leakage point area.

Provided is a method for manufacturing an artificial turf, including: providing a base cloth; providing artificial turf yarns; tufting the artificial turf yarns on the base cloth, and applying an adhesive; and blowing air to the base cloth having the adhesive applied thereto to obtain the artificial turf. According to the manufactured artificial turf, when passing air through the air blowing device, water permeable holes are formed in the bonding layer applied on the base cloth. The water seepage rate of the artificial turf is increased by means of water seepage through the water permeable holes. Moreover, there is no need to pierce the adhesive applied surface of the base cloth during production, thereby avoiding damage to the structure of the artificial turf by piercing. This effectively prevents the artificial turf yarns from loosening and falling off and prolongs the service life of the artificial turf.

A synthetic turf cover system for covering various types of sloping ground includes synthetic grass blades tufted into and through a composite backing, with the composite backing including a non-woven synthetic textile lower layer and a woven textile upper layer positioned above and adjacent the non-woven synthetic textile lower layer. The non-woven synthetic textile lower layer provides good interface shear strength with the ground or a ground-covering membrane, while the woven textile upper lawyer provides good strength. The synthetic turf cover system provides good cushioning to help protect the geomembrane against damage from vehicles driving on the synthetic turf cover system.

Disclosed are exemplary embodiments of woven silt fence fabrics. In exemplary embodiments, the woven silt fence fabric may comprise a high-strength high-modulus monofilament woven silt fence fabric. In exemplary embodiments, the woven silt fence fabric may include two or more different warp yarns having different cross-sectional shapes in the machine direction and / or two or more different fill yarns having different cross-sectional shapes in the cross-machine / transverse direction.

The invention relates to the technical field of soil remediation, and discloses a preparation method and an application method of geotechnical cloth for remediation or barrier of heavy metal contaminated soil. The graft modified keratin geotextile is prepared through pretreatment, cleaning, geotextile processing preparation and modification treatment. When the graft modified keratin geotextile is used for repairing the heavy metal contaminated soil, the graft modified keratin geotextile is laid below or inside the contaminated soil, and heavy metal ions in the soil are released into a liquid phase through leaching treatment and are adsorbed and fixed by the graft modified keratin geotextile. The method is efficient in treatment, can adsorb and remove heavy metals in the soil within a week, solves the problem of heavy metal migration and diffusion in a traditional remediation technology, is free of secondary pollution, can guarantee the original physicochemical properties of the soil, treats pollution with waste, and is low in cost. In addition, the composite material can also be used as an isolating layer, effectively avoids diffusion of heavy metal in soil, and has a wide application prospect.

A tufted article (e.g., an artificial turf panel) having a backing and a plurality of tufts extending through the backing. The plurality of tufts are distributed among a plurality of patterned regions. Each patterned region has at least one tuft of the plurality of tufts. The tufts of each patterned region differ from the tufts of at least one other patterned region of the tufted article in at least one of color, pile height, yarn type, or yarn density. At least one patterned region creates a longitudinal discontinuity in the color pattern of the tufted article. The tufted article does not have a seam. Complementary side edges of the tufted articles can be secured together to form at least a portion of the surface covering without the need for cutting or the use of inlay components.

The invention relates to a geomaterial sheet comprising a first organic structural material and a second structural material, different from the first, which are connected to the first structural material to form a planar composite material sheet extending in two mutually perpendicular directions. The invention is characterized in that the first structural material and the second structural material are organic materials, the first structural material exhibits a first biodegradability to a certain extent, and the second structural material exhibits a second biodegradability that differs from the first biodegradability, in particular being lower than the first biodegradability.

A system for manufacturing synthetic turf is disclosed that includes an indexing system configured to affix an indexing device to a backing material, a tufting machine configured to receive the backing material and yarn and to fabricate the synthetic turf by tufting the yarn in the backing material and a controller configured to read the indexing device and to post process the synthetic turf as a function of the indexing device.

The present application relates to the technical field of soil remediation, and discloses a preparation and application method of geotextile for heavy metal contaminated soil remediation or isolation. The present application prepares grafted and modified keratin geotextile through pretreatment, cleaning, geotextile processing and modification treatment. When the grafted and modified keratin geotextile is used for heavy metal contaminated soil remediation, it is laid under or in the contaminated soil, and leaching treatment is used to release heavy metal ions in the soil into liquid phase and be adsorbed and fixed by the grafted and modified keratin geotextile. The present application is efficient, can adsorb and remove heavy metals in the soil within one week, solves the problem of heavy metal migration and diffusion in traditional remediation technology, has no secondary pollution, can guarantee the original physicochemical properties of the soil, uses waste to treat pollution, and is low in cost. In addition, the present application can also be used as an isolation layer to effectively avoid the diffusion of heavy metals in the soil, and has a wide application prospect.

A resin composition for monofilaments contains a poly(3-hydroxyalkanoate)-based resin component. The resin composition has a melting point peak temperature of 140° C. or higher and a crystal melting enthalpy of 65 J / g or less as calculated from all melting peaks in differential scanning calorimetry. The monofilament containing the resin composition has high strength and elongation. A method for producing the monofilament containing the resin composition contains, in the stated order, (i) discharging the resin composition in a molten state from a spinning nozzle, and then cooling thereby forming a raw yarn and (ii) stretching the raw yarn in at least one direction.

Disclosed are geotextiles configured for moisture management. In exemplary embodiments, a geotextile comprises a plurality of structural elements including one or more yarns, cords, or filament bundles arranged to form a fabric or grid. At least a portion of the structural elements include capillary-active surfaces and / or are configured to promote capillary wicking of moisture along at least one direction of the geotextile. At least a portion of the structural elements include internal void regions configured to maintain hydraulic conductivity under compaction. The geotextile is operable for providing dual-mode moisture transport through both capillary wicking and hydraulic flow thereby allowing for removal and redistribution of water from pavement layers and subgrade soils.

A method of manufacturing an artificial turf fiber includes extruding a polymer mixture through at least one fiber profile opening of an extrusion plate to form an artificial turf fiber, where the fiber profile opening includes first and second end portion openings and a curved middle portion opening has at least one spine opening proximate to at least one end portion opening, allowing the extruded polymer mixture to travel along a distance between the fiber profile opening to a quenching unit, where the at least one spine opening is sized and positioned such that a net polymer mass flow in the extruded polymer mixture from a position of the spine opening to the at least one end portion of the fiber proximate the spine opening occurs before the fiber is quenched, and quenching the extruded polymer mixture in the quenching unit to form the artificial turf fiber.

The invention discloses a deep silt layer woven cloth mechanical laying and modularized plate inserting system and method.The deep silt layer woven cloth mechanical laying and modularized plate inserting system comprises to-be-laid woven cloth arranged on a first floating body, the part, extending to the silt surface, of one side of the to-be-laid woven cloth is laid woven cloth, and one side of the first floating body is connected with a winch through a traction rope; a second floating body is arranged on the surface of the to-be-paved woven cloth, and an inserting rod is arranged on the second floating body; the construction efficiency and economical efficiency of mechanical laying of the woven cloth on the deep and thick silt layer and modular plate inserting are greatly improved, and meanwhile the safety risk is reduced.

A tensioning apparatus (200) is configured to apply tension to an elongated metal element (20) that is supplied to a knitting machine (10) for manufacturing a metal mesh (12) for geotechnical protection. The tensioning apparatus (200) comprises a tensioning device (228) having a set of drums (230) around which one or more coils of an elongated metal element to be placed in a tensioned state are wound. A tensioning member (250) is provided which holds the coil in contact with the drum (230) in such a way that the friction between the elongated metal element (20) and the drum (230) itself is adjusted to create a reaction force opposite the pulling action exerted by the knitting machine (10) which tends to unwind the elongated metal element (20) from the drum (230) of the tensioning device (228).

The present invention belongs to the technical field of offshore wind power engineering, and discloses a recyclable anti-scour device for offshore wind power foundation and an operation method thereof, wherein the recyclable anti-scour device for offshore wind power foundation includes a support body, a locking mechanism and an anti-scour cloth, the support body includes a first support assembly and a second support assembly hinged to each other, the other end of the first support assembly is detachably connected to the other end of the second support assembly; the locking mechanism is arranged on the support body, the locking mechanism includes a connecting assembly, a locking assembly and a clamping assembly, the support body is connected to the suction cylinder foundation through the connecting assembly, the first support assembly and the second support assembly are detachably connected through the locking assembly, a support member is clamped on the clamping assembly, the anti-scour cloth is fixedly connected to the support member, and the anti-scour cloth is arranged around the suction cylinder foundation. The present invention can improve the stability of the suction cylinder foundation, facilitate installation and disassembly and recycling, reduce resource waste, and avoid damage to the marine environment.

The present disclosure provides a filament. In one embodiment, the filaments consist of a polyethylene composition. The polyethylene composition comprises (a) from 15% to 25% by weight of a first polyethylene component having a molecular weight (Mw) of greater than 200,000 g / mol and a density of from 0.925 g / cc to 0.945 g / cc, (b) from 20% to 35% by weight of a second polyethylene component having a molecular weight (Mw) of less than 80,000 g / mol and a density of from 0.915 g / cc to 0.950 g / cc, and (c) from 40% to 65% by weight of a third polyethylene component having a molecular weight (Mw) of less than 80,000 g / mol and a density of from 0.925 g / cc to 0.945 g / cc, the third polyethylene component has a molecular weight (Mw) of less than 100,000 g / mol and a density of from 0.940 g / cc to 0.965 g / cc. The polyethylene composition has a density of from 0.935 g / cc to 0.958 g / cc and a melt index (h) of from 0.5 g / 10 min to 5.0 g / 10 min. The present disclosure also provides a backing layer for artificial turf. The backing layer is prepared from filaments composed of a polyethylene composition.

The invention provides breathable, moisture-preserving, corrosion-resistant and growth-promoting sand covering cloth which is a latticed coiled material formed by mixing polyethylene (PE), polypropylene (PP) and a benzotriazole (UV-P) anti-aging material according to a certain proportion and then performing wire drawing and weaving, has the characteristics of water permeability, breathability, moisture preservation, fertilizer conservation, wind erosion resistance, aging resistance, environmental protection, no pollution and the like, and can effectively fix a sand surface and improve a local microenvironment; the method provides a stable substrate for plant growth, and is suitable for ecological restoration engineering in desertification areas such as desert, sand and gobi.

A synthetic turf system includes a backing, turf fibers extended upward from the backing, and one or more infill layers positioned above the backing, below a top portion of the turf fibers. The one or more infill layers includes carbon sequestration sand, or the synthetic turf system further comprises a layer of carbon sequestration sand disposed above or below the one or more infill layers.

The invention relates to the technical field of retaining wall drainage, and discloses a retaining wall integrated type double-layer water filtering layer drainage pipe which comprises a ribbon, a filtering mechanism is arranged on the inner side of the ribbon, a first fixing mechanism is arranged on the periphery of the left end of the filtering mechanism, and a second fixing mechanism is arranged on the periphery of the right end of the filtering mechanism. The filter mechanism comprises a first non-woven geotextile, the first non-woven geotextile is arranged on the inner side of the ribbon, an outer floral tube is wound on the inner side of the first non-woven geotextile, an inner floral tube is slidably connected to the inner side of the outer floral tube, and a water filter bag is slidably connected to the left side of the inner floral tube. When drainage work needs to be conducted on the retaining wall, firstly, medium-coarse sand, pisolite and gravel are sequentially filled in the water filtering bag according to the proportion of 1 / 3, after filling is completed, the left side of the water filtering bag is sealed through a sealing plug, meanwhile, second non-woven geotechnical cloth is wound around the periphery of the water filtering bag, and then the finished water filtering bag is slowly placed in a drill hole.

Provided are an inorganic-fiber fabric for a construction membrane material and construction membrane material having excellent resistance to heat damage, great ease of weaving, and high applicability for use in a construction membrane material. An average Al2O3 content of a warp, At, and an average Al2O3 content of a weft, Ay, are 17.5 mass% or more; a mass per unit length of the warp, Tt, and a mass per unit length of the weft, Ty, are within a range of 100 to 600 g / 1000 m; a weave density of the warp, Wt, and a weave density of the weft, Wy, are within a range of 10.0 to 55.0 filaments / 25 mm; a ratio of Tt to Ty, Tt / Ty, is within a range of 0.66 to 1.50; and At, Ay, Tt, Ty, Wt, and Wy satisfy the following formula (1-1). 316.5 ≤ Wt1 / 3×Tt1 / 2 / (At / 100) + Wy1 / 3×Ty1 / 2 / (Ay / 100) ≤ 550.0 ...(1-1)

The invention relates to a geotechnical material web comprising an organic first structural material and a second structural material different from the organic first structural material, the second structural material being connected to the first structural material to form a planar material composite web extending in two mutually perpendicular directions. The invention is characterized in that the first and second structural materials are organic materials, the first structural material having a first biodegradability to some extent, while the second structural material has a second biodegradability different from the first biodegradability, in particular lower than the first biodegradability.

A roofing underlay with a nail-sealable waterproof membrane and method of manufacturing the roofing underlay are described. The roofing underlay includes a main layer formed of a fibrous non-woven material including a plurality of continuous randomly oriented entangled fibers. An anti-slip layer and an anti-skid layer are bonded to the main layer. The main layer is compressed between the anti-slip layer and the anti-skid layer to create a nail-sealable waterproof membrane via capillary action of the continuous randomly oriented entangled fibers of the main layer.

The invention relates to the technical field of water and soil conservation, and discloses a new energy project construction period temporary road water and soil conservation structure which comprises a construction vehicle capable of being used for new energy project construction period temporary road water and soil conservation, a fixing mechanism is arranged on the surface of a lifting assembly, and a water and soil conservation component is arranged on the surface of the fixing mechanism. The water and soil conservation component comprises an inserting plate, a roller and geotechnical cloth, the inserting plate is arranged on the surface of the fixing mechanism, the roller is fixed to the side face of the inserting plate, the geotechnical cloth is wound and fixed to the surface of the roller, a driving structure is arranged on the surface of the fixing mechanism, and a cutting component is arranged on the surface of the lifting assembly. Through mutual cooperation of the driving structure and the cutting part, the device can cut off laid cloth, so that the situation that the cloth is not laid completely, the residual part is located outside, and the residual cloth is aged is avoided.

The invention discloses a geogrid device based on a cloth layer base body, a preparation device, a method and application of the geogrid device based on the cloth layer base body, the geogrid device based on the cloth layer base body comprises geotextile (10) used for being laid as an integral face, geogrid strips (20) arranged on the geotextile (10) and a connecting layer body (40) arranged between the geogrid strips (20) and the geotextile (10), and through the geotextile (10), cloth face body connecting and supporting of the geogrid strips (20) are achieved; through the geogrid strips (20), mesh strip reinforced connection of the geotextile (10) is achieved, through the connecting layer body (40), middle connection of the geogrid strips (20) and the geotextile (10) is achieved, the fence type cloth strip geogrid body is obtained through cloth and mesh strips distributed in an arrayed mode, and the technical problem that a grid body serves as the geogrid body is solved. Therefore, the application range of the geogrid is expanded.

Provided is an apparatus for manufacturing double-sided yarn for artificial turf. According to an embodiment, the apparatus may comprise: a first-liquid supply pipe through which a melted first liquid is supplied; a second-liquid supply pipe which is disposed in a space physically separated from the first-liquid supply pipe and to which a melted second liquid is supplied; and a confluence unit in which the first liquid introduced through the first-liquid supply pipe and the second liquid introduced through the second-liquid supply pipe converge.