438 results about "Gabion" patented technology

The invention relates to a protection method suitable for the high and steep side slope ecological restoration technology. The protection method is characterized by comprising the following steps that, 1, the slope surface is tidied, and a side slope is measured; 2, an anchor rod is driven into a high and steep side slope and grouting is conducted for support; 3, vertical and horizontal support lines are installed, and a grille net is laid and hung on the slope surface; 4, a steel wire rope net is laid and hung on the grille net; 5, an angle steel bracket is installed, in addition, the angle steel is fixedly welded with the anchor rod; 6, a gabion mesh and a nutrient geotextile are laid in a layered mode; 7, primary level vegetation concrete is seeding-sprayed; 8, a nutrient substrate is seeding-sprayed on the primary level vegetation concrete; 9, top-level vegetation concrete is seeding-sprayed on the nutrient substrate; 10, an independent planting groove is formed in the top-level vegetation concrete to plant seedlings; and 11, maintenance and management are conducted. According to the protection method for the high and steep side slope ecological restoration technology, the ecological restoration problem of the side slope with the slope being greater than 60 degrees can be solved effectively, the ecological environment is restored, and a new method is provided for solving the problems of high and steep side slope ecological restoration and side slope stability.

The invention relates to an improved urban domestic garbage landfilling structure and a landfilling treatment method using the same. The improved urban domestic garbage landfilling structure comprises a clay liner, a polymer film, a geotextile and a percolate guiding and discharging layer, wherein the clay liner is laid on foundation soil; the polymer film is laid on the clay liner; the geotextile is laid on the polymer film; and the percolate guiding and discharging layer is laid on the geotextile, and a percolate guiding and discharging pipe is buried in the percolate guiding and discharging layer. The improved urban domestic garbage landfilling structure is characterized in that the tail end of the percolate guiding and discharging pipe is communicated with atmosphere, the percolate guiding and discharging pipe is also respectively connected with an opened horizontal air guiding pipe and an opened vertical air guiding pipe, and the horizontal air guiding pipe and the vertical air guiding pipe as well as a gabion for protecting the horizontal air guiding pipe and the vertical air guiding pipe all extend out of the garbage landfilling structure and then are communicated with the atmosphere. The invention is especially useful for the rapid stabilization of urban domestic garbage and the function of emission reduction of greenhouse gases CH4.

The invention discloses a three-dimensional ecological restoration method for a supereutrophic lake water body. The method comprises the following steps of: inserting a plurality of fixed piles into a hard layer at the bottom of a lake, transversely connecting the tops and middle parts of the fixed piles with steel cables to form an enclosure structure, connecting water-proof canvas serving as enclosure cloth with the fixed piles, and fixing the bottom end of the enclosure cloth and a gabion at the bottom of the lake after sewing to constitute an enclosure; transforming a substrate in the enclosure; partitioning the water surface into multiple layers according to water plants needing to be planted; transplanting the water plants; establishing an ecological floating island; performing biological alga control; and running an ecological enclosure system, maintaining and managing. By adopting the method, the water quality can be improved remarkably, the water transparency is enhanced remarkably, the nutrient salt content is lowered remarkably, and remarkable ecological benefit and landscape effect are achieved.

The invention discloses a slope protection method, wherein a gabion filled with construction wastes servers as a slope protection wall body, and quick afforestation is conducted to the gabion. According to the method, the gabion made of metal wires is filled with the construction wastes and is used for the ecological protection of a slope or a riverbank to form the slope protection wall body, and cement, clay, river sands, organic matters, improved vegetation concrete afforestation additives and plant seeds are injected into the slope protection wall body to afforest the slope protection wall body. The local recycling utilization of the construction wastes is achieved, degree of mechanization of the slope wall body quick afforestation method is high, cost is low, the contradiction between soil conservation and growth of plants is better solved, and application prospect is wide.

The invention relates to an ecological ditch system for farmland return water pollution prevention and control. The ecological ditch system comprises farm ditches, branch ditches, a reservoir/pond and a main ditch, wherein the farm ditches, the branch ditches, the reservoir/pond and the main ditch sequentially communicate. The ecological ditch system is constructed through the following steps of (1) farm ditch construction, wherein (1-1) the farm ditches are finished, (1-2) plants are planted, and (1-3) multiple stone steps are arranged; (2) branch ditch construction, wherein (2-1) the branch ditches are finished, (2-2) branch ditch slopes are arranged, (2-3) soil intercepting dams are built, (2-4) plants are planted and artificial aquatic plants are arranged, and (2-5) gabions are arranged; (3) reservoir/pond construction; and (4) main ditch construction. According to a construction method, finishing and ecological reconstruction are carried out based on an original ditch, drainage of farmland overland runoff and farmland irrigation water is facilitated better, and the structure of agricultural production is not changed in the whole reconstruction process; and meanwhile the purification capacity of the ditch on pollutants in farmland drained water can be improved, no cultivated land resource is additionally occupied, the construction method and process and daily maintenance are simple, and implementation and popularization are easy.

The invention relates to a vertical revetment river lake water wet land system and a construction method thereof. In the system, two rows of gabions are arranged on revetment and offshore sides to form a water wet land; willows and emergent aquatic plants are planted on the gabions; spherical fillers are arranged on the upstream side; ripraps are filled on the two sides; submerged plants and floating plants are planted in the water wet land to form a submerged plant zone and a floating plant zone respectively; and stones are placed in the water wet land. The system overcomes the defects of vegetation deterioration, reduced biological diversity, water degradation, reduced landscape aesthetic value and the like of the original river lake water zone caused by the reinforced concrete verticalrevetment in the river lake water zone. The system closures pollutants in the water, settles silt carried by the water, purifies water quality, improves water, reduces difficulty of river treatment, lightens load of water treatment, forms vegetation zones, provides a perched space for fishes, and improves biological diversity.

The invention discloses a debris flow gabion prevention and control structural body and a design method of the debris flow gabion prevention and control structural body. The flexible debris flow blocking structural body aims to overcome the defects that an existing permeable dam is limited in water permeability and is cracked and destroyed easily by over large instantaneous impact force. The debris flow gabion prevention and control structural body comprises at least one gabion dam prevention and control structural single body. Each single body comprises a lower steel pipe pile group and an upper gabion dam, wherein the steel pipe pile group is formed by arranging a plurality of steel pipe piles in the transverse direction of a debris flow channel, the lower pile bodies of the steel pipe piles are embedded into a debris flow gulley bed, and the upper portions of the steep pipe piles are exposed out of the gulley surface and are connected with the gabion dam in a penetrating mode. The multiple gabion dam prevention and control structural single bodies are arranged adjacently in the longitudinal direction of the debris flow channel. Through the optimization design, the gabion dam is of a multi-layer structure, each layer of the gabion dam is composed of a plurality of gabion nets, and the gabion nets of each layer are arranged in a staggered mode. The invention further provides the design method of the debris flow gabion prevention and control structural body. The debris flow gabion prevention and control structural body can fully utilize the water permeability of the gabion combined structure and deformation feedback of the gabion combined structure on the impact to achieve a good prevention and control effect.

The invention discloses a method for building an ecological littoral zone in a buffer area. The method comprises building of gabions, a low pond, multiple ponds and a retention canal. The method comprises the following specific steps: (1) a gabion area is built, wherein the gabions are built between a normal water level of a river and a level of a flood occurring every two years, and emergent aquatic plants are planted in gaps between the gabions; (2) the low pond is built, wherein a low area which is 20cm lower than the gabion area and 20cm lower than foundations of the multiple ponds is built between the level of the flood occurring every two years and the level of a flood occurring every twenty years; (3) a multi-pond system is built, wherein two rows of pond systems are built in the low pond area, substrate improvement is conducted, submerged plants are closely planted in the ponds, and the emergent aquatic plants are planted on the foundations and the circumferences of the ponds; (4) the retention canal is built, wherein the retention canal is built along the outside of the level of the flood occurring every twenty years. The method effectively solves the ecological problems that a surface source of a gentle slope area of the river is severely polluted, landscapes are poor, the biodiversity is reduced and water and soil loss occurs, and offers a feasible and efficient ecological restoration measure for recovery and reconstruction of a hydro-fluctuation belt.

A gabion includes panels of metal meshes that can be assembled so as to form a casing for receiving a bulk of filler material such as pebbles, natural rock fragments, wood chips or the like and/or a mixture of said materials. The gabion further includes at least one flexible sealed pouch provided with gripping members and configured to be inserted between the assembled panels.

The invention relates to a biological purification dam. The biological purification dam comprises a dam body which is transversely arranged in a river lake, wherein gabion filtering layers formed by stacking gabion units are respectively arranged on a river side and a land side of the dam body; the inner part of each gabion unit is filled with biological aggregate; a filtering material filling layer formed by filling the biological aggregate is arranged at the inner side of each gabion filtering layer; the biological aggregate comprises construction waste aggregate and a biological film which is attached to the outer side of the construction waste aggregate and is formed by a microbial agent. According to the biological purification dam disclosed by the invention, microorganisms are produced into the biological film which is attached to the surface of a carrier; the carrier carrying the microorganisms is arranged in a direction of being vertical to a river; a retaining dam is formed in a river channel; when river water flows through a retaining dam layer, the microorganisms in the biological film start to act for performing purifying and pollution cleaning on the river water, so that ammonia nitrogen and organic pollutants in a water body are effectively removed, and the self-cleaning capacity of the river is enhanced; an environment of naturally purifying can be provided for the water body of the river channel, a necessary habitat environment also can be provided for aquatic animals, the eutrophication of the water body is prevented, and a landscape effect of the river channel is improved.

The invention discloses a debris flow ecological protection device capable of dissipating energy and conducting filtration. The debris flow ecological protection device comprises at least debris flow ecological protection unit located on the upstream surface. Each debris flow ecological protection unit comprises a plurality of megalith gabion layers and slide-resistant piles linearly arranged. Each megalith gabion layer comprises a plurality of megaliths. The slide-resistant piles are arranged behind the last megalith gabion layer. Crash pads are arranged between the slide-resistant piles and the last megalith gabion layer. In the debris flow direction, the megalith gabion layers of each debris flow ecological protection unit are arranged in a ladder mode and are elevated gradually. The megaliths of each debris flow ecological protection unit are connected into a whole through concrete. According to the debris flow ecological protection device, debris flow energy can be weakened stepwise, and big rock blocks can be filtered, so that debris flow is restored to normal water flow.

The invention discloses an ecological slope protection structure for preventing soil erosion and a construction method thereof. The slope protection structure comprises a gabion box foot protecting wall, an anti-scouring retaining wall and a slope protection layer which are arranged from bottom to top sequentially along a slope surface. Planting pipes are evenly distributed on the slope protectionlayer, the planting pipes penetrate through the slope protection layer, and the slope protection layer comprises an inverse filtering layer, an ridging layer, a pebble layer and a protective brickinglayer arranged in sequence from bottom to top. The anti-scouring retaining wall is formed by stacking planting boxes in an up-down staggered mode. The construction method comprises the (a) step of cleaning the slope surface, the (b) step of burying foundations, the (c) step of erecting the retaining walls, the (d) step of arranging the planting pipes, the (e) step of laying the rest of the slopeprotection layers, and the (f) step of constructing a top surface. According to the ecological slope protection structure for preventing the soil erosion, the structural stability is high, the anti-scouring capacity is high, air permeability and water permeability are achieved, the ecological benefit is high, the landscape property is good, the effect of preserving soil and water is good, the construction method is rapid and convenient, the construction is easy, the construction period is short, the construction quality is easy to control, the number of devices related is small, the construction cost is low, and the maintenance is simple.

The invention relates to a reverse drainage treatment method during the construction period of a dam body of a high rock-fill dam provided with a concrete panel, which is a drainage method for treating dam body construction waste water and underground leaked water during the construction period of the high rock-fill dam provided with the concrete panel by combination of the prior drainage and toe board and wide slot drainage. The method comprises the following steps: firstly, as for the dam body construction waste water and the underground leaked water below the elevation on the top of a flow measurement weir on the rear of the dam, reinforced gabions are used for arranging a temporary collecting well and a drainage pipe inside a rock-fill before the dam for drainage, that is the reverse drainage treatment method is performed; and secondly, as for the dam body construction waste water and the underground leaked water on the elevation on the top of the flow measurement weir on the rear of the dam, drainage is still performed by adopting the prior flow measurement weir on the rear of the dam. The method breaks through the treatment range of reversely leaked water in the dam body during the construction period of the rock-fill dam covered by the DL/T5128-2001 construction specifications of the Construction Specifications for the Rock-fill Dam Provided with a Concrete Panel, solves the problem of drainage of the leaked water in the dam body in the construction process of the high rock-fill dam, and particularly guarantees the safety of construction of the concrete panel.

The invention relates to a high-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and a treatment method thereof. The high-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure is characterized in that the back of a seepage prevention cloth surface layer is a reinforced steel bar net fine stone concrete leveling layer adhered by drill grouting concrete anchor rods, and the back of the leveling layer is a protection bottom layer formed by inlaying broken stones or pebbles into vertically arranged alternate drainage gabions along a sloping surface. Relative to the leveling by backfilling clay in the prior art, the invention has the advantages of short construction cycle, clay saving, project investment saving and big capacity of reservoir; relative to reinforcing the high-steep side slope by jetting concrete at present, the invention also has the advantages of simple construction, investment saving and good drainage effect, and good safety stability of an anchor bolt spray layer. The invention is economic and safe and meets the demands of a high-steep side slope and intensely weathered bed rock-paved HDPE (high-density polyethylene) geomembrane seepage prevention layer.

The invention relates to an immerseable embankment high slope interlocked ecological brick flexible protection structure and a construction method. The immerseable embankment high slope interlocked ecological brick flexible protection structure comprises a gravity type retaining wall, an anchor rod anchoring system, a geogrid reinforced embankment, an ecological gabion broken stone hardcore, an interlocked ecological brick surface layer and the like. The construction method sequentially comprises the steps of surface leveling construction, basic retaining wall enlargement construction, horizontal anchor rod layered construction, laying of geogrid, anti-filtration geotechnical cloth and a gabion mesh, filling of embankment filling materials and broken stone bodies near water, and laying of slope interlocked ecological bricks. The geogrid is connected with anchor rods through connection devices; each connection device comprises a vertical groove-shaped component, a horizontal pressing connection plate, a pressing connection bolt, an anchoring body and the like. The immerseable embankment high slope interlocked ecological brick flexible protection structure and the construction method have the beneficial effects of being applicable to embankment filling construction with changes of the water level on the embankment slope side, especially applicable to embankment filling construction having the ecological slope protection requirement, and obtaining good technical and economic benefits.

The invention discloses a river channel reinforced gabion and water-permeable geotextile composite ecological slope protection retaining wall construction method. The method includes the steps of completing the prediction and control of the road elevation according to drawings and benchmarks provided by a construction unit; manufacturing engineering components meeting the requirements through gabions by means of hexagon twin twisted steel wire mesh which is formed by weaving low-carbon steel wire ropes where anti-corrosion processing is conducted; assembling the gabions; installing the gabions; conducting stone filling; stranding cover plates; conducting crushed stone backfilling; laying geo-grids; laying water-permeable geotextile; pressing filled earth, wherein damage to the geo-grids should be avoided in the filled earth pressing process. The method can be widely applied to the slope protection retaining wall construction of water conservation, shipping, beaches, slope protection, river levees, channels, municipal facilities, roads, railways, culverts, gardens, parks, real estate communities and the like, and the method is large in compressive strength, good in antifreeze performance, economical, attractive in appearance, safe and reliable.

A stone cage check dam used for mountainous area erosion gully control comprises cement piles. The stone cage check dam is characterized in that a cylindrical cage is formed by a wire net which is formed by galvanized iron wires in a staggered weaving mode, and rock blocks are placed into the cylindrical cage; a gully bottom base is excavated from the center line of a gully bottom downwards, multiple layers of stone cages which are overlapped are horizontally paved inside the base, a layer of stone cage is vertically paved on the upper portion of the base, and all the stone cages are connected through iron wires; a row of cement piles which are embedded into the gully bottom are respectively arranged on the two sides of the multiple layers of stone cages which are horizontally paved, a plurality of stone cage check dams are arranged along the erosion gully, and the distance between every two stone cage check dams satisfies the requirement that the bottom portion of the prior stone cage check dam is at the same height as the top portion of the next check dam. The stone cage check dam can realize mountainous area erosion gully control, is not limited by water flow speed, gully sand content, gully widths, gully erosion types and the like, can prevent gully head advancing, gully shore expanding and gully bend sapping and realize comprehensive control over erosion gullies, has the advantages of being strong in water permeability, high in stability, long in service life, low in cost and the like, and not only solves the problem of water and soil loss of the mountainous area erosion gullies, but also enables the gullies to deposit to form terraces, so that the area of available land is increased, and conditions are provided for agriculture and forestry production.

The invention discloses a tree-like refuse leachate generated in landfill construction and closure as well as a landfill gas guide and exhaust system and method. The landfill gas guide and exhaust system comprises gabions, gas collecting shafts, horizontal branch gas collecting pipes, water guide blind ditches and a leachate collecting device, wherein the gas collecting shafts are arranged according to the slopes of a backfilling units of a refuse landfill and are enabled to be parallel to the axes of refuse dump backfilling units; one layer of branch gas collecting pipe is paved on every 1-2 backfilling units, and the branch gas collecting pipes communicate with the gas collecting shafts; the water guide blind ditches are arranged in a dump in a layered way, and every two adjacent layers of water guide blind ditches are communicated through the vertically arranged gabions; and the gas collecting shafts communicate with each layer of water guide blind ditch through the gabions. A tree-like guide and exhaust system is established for landfill gas and leachate according to the structure of the refuse landfill, the landfill gas and the leachate are connected and crossed by using pipelines, the arrangement of the water guide blind ditches in the vertical direction is omitted due to the communication of the gas collecting shafts and the water guide blind ditches, so that the collecting efficiencies of the landfill gas and the leachate are increased, meanwhile, the investment cost is reduced, and the landfill gas guide and exhaust system is safe and simple in operation.