CN112832193A - Economical ecological slope protection device and construction method thereof - Google Patents
Economical ecological slope protection device and construction method thereof Download PDFInfo
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- CN112832193A CN112832193A CN202110024175.6A CN202110024175A CN112832193A CN 112832193 A CN112832193 A CN 112832193A CN 202110024175 A CN202110024175 A CN 202110024175A CN 112832193 A CN112832193 A CN 112832193A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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Abstract
The invention provides a saving-type ecological slope protection device and a construction method thereof, which are used for being arranged on river channel side slopes on two sides of a silt river channel and comprise support piles, bamboo raft slope protection and a fixing mechanism, wherein the support piles are fixedly inserted at the slope feet of the river channel side slopes, the bamboo raft slope protection is laid on the river channel side slopes, the bamboo raft slope protection is formed by mutually splicing a plurality of bamboo raft plates, the bamboo raft plates are of a net-shaped flat plate structure woven by bamboo sheets, the lowest ends of the bamboo raft slope protection are fixedly connected with the support piles in the extending direction of the river channel, the highest ends of the bamboo raft slope protection are higher than the designed water level of the silt river channel, and the fixing mechanism comprises insertion and clamping pieces which are inserted into the river channel side slopes and fix the bamboo rafts on the river channel side slopes. This ecological bank protection device of saving type can protect river course side slope soil, and simple structure builds conveniently, and the place of perching is provided for the river course aquatic thing simultaneously to the cost ground, is favorable to river course water purification.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to an economical ecological slope protection device and a construction method thereof.
Background
Most of the areas such as long triangles and bead triangles are alluvial plains, the fourth series of loosely deposited soil bodies are widely accumulated, and silty soil and sandy soil are distributed on the surface layer. For example, the second layer soil in Shanghai is shallow silty soil or sandy soil. When the side slope of the river is silty soil or sandy soil, and the soil body is soaked and saturated by water, the hydrophilic colloid particles in the soil particles absorb water and expand to reduce the density of the soil particles, and when the dynamic water pressure exceeds the gravity of the soil particles under the action of the dynamic water pressure, the soil particles generate suspension flow, so that quicksand is formed. The silt interlayer is arranged in the soil layer, the permeability coefficient of the silt layer is far higher than that of other soil layers, and the underground water transversely flows out of the silt interlayer. Generally, the anti-scouring capability is poor; the main problems of the riverway side slope are stable infiltration, stable anti-skid and scouring prevention. After the river channel is excavated, the permeable bank slope under water bears the floating and scouring actions of water; the engineering area is in the frequent fluctuation of the river course water level in flood period, or the tide rises and falls, when the bank slope water level suddenly falls, because the lag of the underground water level dynamic change, easily produce great osmotic pressure, cause certain adverse effect to bank, river slope stability, the rivers constantly produce and erode the side slope simultaneously, the side slope silty soil, sandy soil particle size are less, very easy to flow, the soil erosion of side slope has been accelerated, thereby influence the side slope stability, simultaneously also strengthened river course desilting work load, for example, in last sea river course 3 ~ 4 years need desilting once, the labour and civilian injury of money, a large amount of silt can't be handled, aggravate the erode of side slope after the desilting, form vicious circle, and constantly influence the stability of side slope.
In addition, if the urban river slope adopts hard revetments, the investment is increased, the growth of aquatic organisms is not facilitated, and after pollutants in the river are obviously increased, the consumption speed of dissolved oxygen is greater than the natural reoxygenation speed of the river surface, so that aerobic and facultative microorganisms gradually die, the river loses self-cleaning capacity, the dynamic balance of the concentration of the pollutants in the river is destroyed, and the black and odorous phenomenon of the river can occur. At present, in silt riverways, stone masonry revetments and concrete revetments are generally adopted, and the biggest defect is that the design and construction are carried out only from the perspective of meeting basic functions of river flood control, waterlogging drainage, shipping, water diversion and the like, the survival development of animals, plants and microorganisms which are integrated with rivers is ignored, and the influence on the environment and the ecology is seldom considered. The bank protection form is easy to destroy the ecological function of the river and cause the deterioration of the ecological environment of the river.
In summary, the existing silt river has two main problems, namely that the side slope is easily washed by water flow and the water and soil loss is serious; secondly, the ecological slope protection adopted aiming at the current situation of the river channel has complex construction, high construction cost and difficult later maintenance. Aiming at the defects of the current river slope, the problem needs to be solved by an innovative technology.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides an economical ecological slope protection device and a construction method thereof, wherein a bamboo raft is used to protect silt side slopes of a river channel, provide a place for aquatic organisms in the river channel, facilitate purification of water in the river channel, and have the advantages of simple structure, convenient construction and low material cost.
In order to achieve the purpose, the invention provides a saving-type ecological slope protection device which is arranged on river channel side slopes on two sides of a silt river channel and comprises support piles, bamboo raft slope protection and a fixing mechanism, wherein the support piles are fixedly inserted at the slope feet of the river channel side slopes, the bamboo raft slope protection is laid on the river channel side slopes, the bamboo raft slope protection is formed by mutually splicing a plurality of bamboo raft plates, the bamboo raft plates are of a net-shaped flat plate structure woven by bamboo sheets, the lowermost ends of the bamboo raft slope protection are fixedly connected with the support piles in the extending direction of the river channel, the uppermost ends of the bamboo raft slope protection are higher than the designed water level of the silt river channel, and the fixing mechanism comprises inserting and clamping pieces which are inserted into the river channel side slopes to fix the bamboo raft plates on the river channel side slopes.
Furthermore, all be equipped with between the adjacent bamboo raft and insert the fastener and fix.
Further, insert the fastener including inserting the native board of inserting in river course side slope earth and connecting at the clamp plate of inserting native board upper end, the clamp plate compresses tightly on the bamboo raft board.
Furthermore, the inserting and clamping piece is T-shaped and comprises two pressing plates which are respectively positioned at two sides of the soil inserting plate, and the soil inserting plate is vertical to the pressing plates.
Further, the surface of the part, above the soil body, of the support pile is provided with a carbonization layer.
Further, the edge of the lower end of the bamboo raft revetment is provided with a lantern ring, and the lantern ring is sleeved on the support pile.
Furthermore, a cement soil seal is arranged between the edge of the upper end of the bamboo raft revetment and the side slope of the river channel.
The invention also provides a construction method of the economical ecological slope protection device, which comprises the following steps:
s1, manufacturing the bamboo raft plate, the support piles and the plug-in cards according to the design size in a factory in a standardized manner;
s2, mounting a lantern ring on the lower edge of the bamboo raft plate in the lowest row in the bamboo raft revetment;
s3, transporting the bamboo raft plate, the support piles and the plug-in cards to the bank of the silt river;
s4, driving support piles at intervals at the slope toe of the river side slope along the extending direction of the river channel according to the designed interval;
s5, laying the bottom row of bamboo raft plates with lantern rings, and sleeving the lantern rings on the supporting piles; then according to design arrangement mode and regulation interval, all lay the bamboo raft board, form bamboo raft slope to in the laying process, insert the plug-in card piece between the bamboo raft board and fix.
Further, the method also comprises the following steps: s6, fixing the upper edge of the bamboo raft plate in the uppermost row by using a card inserting piece, pouring cement soil for sealing, and connecting the bamboo raft plate with the river slope.
As described above, the economical ecological slope protection device and the construction method thereof according to the present invention have the following advantageous effects:
1. the manufacturing cost is low: the device has the advantages of low material cost, cheap and easily-obtained bamboo material, convenient maintenance and replacement, convenient construction, low construction cost, no energy consumption during operation, capability of saving a large amount of resources and investment.
2. Can avoid silt sand loss on the river course side slope: the bamboo raft plates are used for protecting soil on the side slope of the river channel, washing of water flow is reduced, soil cohesion is enhanced, sliding resistance of the soil slope is improved, water and soil loss of the side slope is prevented, and silt removing amount of the river channel is reduced.
3. The self-cleaning capacity of the river channel is improved: the bamboo raft is used as a slope protection main body, has good biocompatibility, constructs a relatively good environment, provides suitable environmental conditions for microorganisms and aquatic organisms, eliminates the black and odorous river channel by utilizing the adsorption and degradation capacity of aerobic, facultative and anaerobic natural environment microorganisms, reduces the concentration of water pollutants, and makes the concentration of river channel pollutants reach dynamic balance. The inherent self-cleaning capability of the river channel can be gradually recovered.
4. The economical ecological slope protection device is not only a slope protection, but also a measure for improving water quality, stabilizing water quality and restoring ecology. The method is an effective measure for protecting silt riverways and is a leading-edge technology with vitality in the field of riverway water quality treatment.
Drawings
Fig. 1 is a schematic cross-sectional view of an economical ecological slope protection device according to the present invention.
Fig. 2 is a schematic plan view and a schematic cross-sectional view of a bamboo raft panel according to the present invention.
Fig. 3 is an elevation view of the opened rear side of the card-insertion member of the present invention.
Fig. 4 is a schematic plan view of the plug-in card member of the present invention.
Description of the element reference numerals
1 river course bottom
2 river channel side slope
3 support pile
4 bamboo raft board
5 card insertion piece
51 insert native board
51a pointed head
52 pressing plate
53 middle tangent line
54 line of bending
6 cement soil sealing
7 lantern ring
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.
Referring to fig. 1 to 4, the invention provides a saving-type ecological slope protection device, which is used for being arranged on river channel side slopes 2 on two sides of a silt river channel and comprises support piles 3, bamboo raft slope protection and a fixing mechanism, wherein the support piles 3 are fixedly inserted at the slope feet of the river channel side slopes 2, the bamboo raft slope protection is laid on the river channel side slopes 2, the bamboo raft slope protection is formed by mutually splicing a plurality of bamboo raft plates 4, the bamboo raft plates 4 are of a net-shaped flat plate structure woven by bamboo sheets, the lowermost ends of the bamboo raft slope protection are fixedly connected with the support piles 3 in the extending direction of the river channel, the uppermost ends of the bamboo raft slope protection are higher than the designed water level of the silt river channel, the fixing mechanism comprises inserting and clamping pieces 5, the inserting and clamping pieces 5 are inserted into the river channel side slopes 2, and the bamboo raft plates 4 are.
The invention relates to an economical ecological slope protection device, which adopts a bamboo raft slope protection formed by splicing a plurality of bamboo raft plates 4, wherein the bamboo raft slope protection can be arranged on a riverway side slope 2 at intervals or continuously, and can be specifically arranged according to requirements. Bamboo raft bank protection is fixed on river course side slope 2 through support stake 3 and plug-in card piece 5 steadily, avoids because of rivers erode the displacement. The upper end of the bamboo raft revetment is preferably higher than the designed water level by about 10cm, on one hand, the bamboo raft revetment forms a protective layer on the natural soil of the river channel side slope 2 to form an ecological revetment structure, so that water and soil loss can be effectively prevented, the cohesion of soil is enhanced, the slip resistance of the soil slope is improved, and scouring is prevented; on the other hand, bamboo raft board 4 is the netted flat structure that the bamboo chip was woven, has corresponding mesh, and specific surface area is big to belong to natural ecological material preparation, have biological affinity, the surface is crude, makes the bamboo raft bank protection can purify river course quality of water, promotes river course aquatic life environment, provides the space of perching for microorganism and aquatic life, and the river course has had aquatic life, and accessible aquatic life makes contributions for river course quality of water purifies again. In addition, the bamboo material is natural, and the bamboo is low in cost, renewable, degradable and low in environmental pollution.
The economical ecological slope protection device can be used on the side slope 2 of the river channel with silt soil (silty soil and sandy soil), and solves the problems of the existing silt-soil river channel. Silt is the silty soil and the silty fine sand of shallow layer, and it is wider to distribute in the river course engineering, and when river course slope 2 was this kind of silty soil, the soil body was when receiving water soaking saturation, and the hydrocolloid granule absorbs water in the soil grain and expands and makes the density of soil grain reduce, and under the effect of dynamic water pressure, when dynamic water pressure exceeded the gravity of soil grain, the soil grain produced the suspension and flows, forms quicksand promptly, whether produces quicksand phenomenon and can follow the following formula and calculate: i iscr＝(ρs-1) (1-n), wherein: i iscr-a critical hydraulic gradient; rhos-the particle density of the soil; n-porosity of the soil in decimal counts. When the silt interlayer exists in the soil layer, the permeability coefficient of the silt layer is far larger than that of other soil layers, and the underground water transversely flows out of the silt interlayer. When the soil layer of the river channel side slope 2 is provided with the silty soil interlayer, the permeability coefficient of the silty soil is far larger than that of other soil layers, underground water transversely flows out of the silty soil layer, and the seepage point of the underground water is easy to generate quicksand, namely common side slope water and soil loss. Acting as side slope silty soilActual hydraulic slope of layer I is greater than IcrIn practice, a safety factor greater than 1.0 should be considered. Silt on the side slope 2 of the river channel is generally poor in scouring resistance, and after the river channel is excavated, the permeable bank slope under the water can bear the floating, scouring and elutriating effects of water; the engineering area is the change that often rises and falls in the river course water level in flood season, or the tide rises and falls, when bank slope water level suddenly drops, because the hysteresis of ground water level dynamic change, easily produce great osmotic pressure, cause certain adverse effect to bank, river course side slope 2 stability, rivers constantly produce to erode river course side slope 2 simultaneously, the silty soil on the river course side slope 2, sandy soil grain diameter is less, very easily flow, the soil erosion and water loss of side slope has been accelerated, thereby influence the side slope stability, also increaseed river course desilting work load simultaneously. Therefore, the silt river has two main problems in the current situation, namely that the side slope is easily washed by water flow and the water and soil loss is serious; secondly, the ecological slope protection adopted aiming at the current situation of the river channel has complex construction, high construction cost and difficult later maintenance.
Aiming at the two problems of the powdery soil and the sandy soil in the river course side slope 2, the economical ecological slope protection device is adopted, the bamboo raft plate 4 is used as an ecological slope protection to protect the powdery soil and the sandy soil on the river course side slope 2 from being washed away by water flow or damaged by seepage water flow, so that the stability of the river course side slope 2 is ensured, namely after the bamboo raft slope protection is laid on the river course side slope 2, the slope roughness can be increased, the slope runoff speed is reduced, the migration resistance of a soil body is increased, the resistance of the powdery soil and the sandy soil on the slope to washing and sliding is further improved, and the silt quantity of the river course is reduced. The bamboo raft revetment is used as an ecological revetment and is also a microbial carrier, so that microbial propagation and dissolved oxygen transfer are facilitated; creates proper environmental conditions, leads the microorganisms in the riverway to propagate in a large quantity, degrades and eliminates the organic pollutants in the sewage to the utmost extent, provides inhabitation places for the aquatic organisms in the riverway, and is beneficial to purifying the water quality of the riverway.
Referring to fig. 1 to 4, the present invention is further illustrated in a specific embodiment as follows:
in this embodiment, see fig. 1 and fig. 2, as a preferred design, the bamboo raft revetment is pieced together by a plurality of bamboo raft boards 4 and is formed, cover whole river course side slope 2, in particular, see fig. 1, in 2 direction of height of river course side slope, arrange polylith bamboo raft board 4, constitute one row, the upper and lower edges of adjacent bamboo raft board 4 are close to, and have suitable interval, then in 2 direction of length (the river course extending direction) of river course side slope, lay multiseriate bamboo raft board 4 in succession, with this bamboo raft board 4 lays with multirow multiseriate form on river course side slope 2, cover whole river course side slope 2, form the bamboo raft revetment, and the lower edge of the bamboo raft board 4 that is located the bottom is fixed continuous with support pile 3. Wherein, can adopt the butt joint form to mat formation between the bamboo raft board 4, also can adopt the fissure of displacement form to mat formation to should leave 10 mm's gap between the bamboo raft board 4, it is fixed all to be equipped with in the clearance between the adjacent bamboo raft board 4 to insert fastener 5, utilizes to insert fastener 5 and fixes every bamboo raft board 4 on river course side slope 2. The bamboo raft plate 4 is a reticular flat plate structure woven by bamboo chips, the meshes can be large or small, the conventional bamboo raft can be adopted, and the effect of the novel bamboo fiber biomembrane carrier prepared by taking bamboo fibers as raw materials on water treatment is more stable. 4 areas of bamboo raft can set up as required, and its size is decided according to 2 sizes of river course side slope, and its width (along slope direction of height) is preferred about 1.0m to in manual handling and installation. Adopt above-mentioned mode of forming the bamboo raft side slope by the mutual concatenation of a plurality of bamboo raft boards 4, bamboo raft board 4 can be made in advance at the mill, then transports the river course scene and construct again, and the transportation is convenient to according to the region of will laying, nimble equipment, convenient construction. Of course, in other embodiments, especially for the case of a small area to be paved, a whole large bamboo raft 4 can be used as a whole bamboo raft revetment.
In the invention, the bamboo raft plates 4 can be used in a single piece or stacked, namely, a plurality of layers of bamboo raft revetments can be paved on the riverway side slope 2 to increase the protection effect, and the upper and lower layers of bamboo raft plates 4 are bound by rattans or bamboo splints in different points.
In this embodiment, referring to fig. 1 and 3, as a preferred design, the fixing mechanism includes a card-inserting piece 5 disposed at the edge of the bamboo raft board 4, the card-inserting piece 5 includes a soil-inserting board 51 inserted into soil on the river course side slope 2 and a pressing board 52 connected to the upper end of the soil-inserting board 51, the lower end of the soil-inserting board 51 is a pointed head 51a, which is convenient to insert into soil, and the pressing board 52 is pressed on the bamboo raft board 4, so as to press and fix the bamboo raft board 4 on the river course side slope 2.
Further, in this embodiment, referring to fig. 3 and 4, the insert 5 is made of an integral bamboo board by high temperature processing, referring to fig. 4, a bending line 54 is formed at the middle position of the bamboo board, the lower part of the bending line 54 is an insert plate 51, the lower end of the insert plate 51 is processed with a pointed head 51a, then a middle cutting line 53 is formed at the upper part of the bending line 54, and the upper part is cut into two parts to form two pressing plates 52. During the use, the back is inserted to the soil body in the clearance between two adjacent bamboo raft boards 4 to the soil board 51 of inserting card spare 5, is 90 with two clamp plates 52 to both sides respectively buckling and inserting soil board 51, and the card spare 5 is the T type after opening, and two clamp plates 52 compress tightly respectively on two adjacent bamboo raft boards 4 to this is a holistic bamboo raft bank protection with bamboo raft board 4 interconnect. The width of the bamboo chips is about 200mm preferably, the depth of the soil inserting plate 51 inserted into the soil is not less than 100mm, and the length of the pressing plate 52 is about 150 mm. The T-shaped card inserting piece 5 in the embodiment is convenient to process, light in weight and low in cost. Wherein, every bamboo raft board 4 uses to be no less than 4 and inserts fastener 5 and fix, should increase the 5 quantity of plug-in card spare on the great river course side slope 2 of slope rate to strengthen fixedly around bamboo raft board 4 and the seam department of mating formation.
In this embodiment, referring to fig. 1, as a preferred design, the support piles 3 may be bamboo poles or wood piles, the wood piles are preferably pine, the length and diameter of the support piles 3 are determined according to needs, the length of the support piles is generally about 0.5m, the pile tops are 5-10 cm higher than the lower edges of the lowermost bamboo raft 4, and the exposed soil mass portions are preferably baked with charcoal, so as to form a carbonized layer on the surface and increase the corrosion resistance. In this embodiment, the bamboo raft bank protection is equipped with lantern ring 7 bottom, the lower limb department that also falls bamboo raft 4 in the bottom of bamboo raft bank protection is equipped with lantern ring 7, 7 suits of lantern ring are on supporting pile 3, and two supporting piles 3 are no less than to suitable symmetry setting of a bamboo raft 4, 4 bottoms of bamboo raft are cup jointed through lantern ring 7 and supporting pile 3, with supporting pile 3 fixed continuous in river course extending direction, be used for stabilizing bamboo raft 4, prevent 4 glidings of bamboo raft under the rivers scouring action, and simple to operate.
In this embodiment, see fig. 1, as preferred design, bamboo raft bank protection upper end edge, the upper edge of the bamboo raft bank protection 4 that also is the top is equipped with soil cement between with river course side slope 2 and seals 6, seals 6 through soil cement and links up with river course side slope 2 face above the bamboo raft bank protection to guarantee bamboo raft 4's stability, not washed up by rivers, avoid debris to enter into between bamboo raft 4 and the domatic simultaneously.
When the economical ecological slope protection device is applied to a newly-built riverway, the slope can be reduced due to the effect of the bamboo raft slope protection on the slope, so that the engineering quantity of riverway excavation is reduced.
The invention also provides a construction method of the economical ecological slope protection device, which comprises the following steps:
s1, manufacturing components such as the bamboo raft 4, the supporting piles 3, the inserting pieces 5 and the like in a factory in a standardized manner according to the design size.
S2), installing the lantern ring 7 on the lower edge of the bamboo raft plate 4 for laying the bamboo raft on the bottom 1 of the river channel.
S3, conveying the bamboo raft plates 4, the support piles 3, the inserting clamping pieces 5 and other components to the sides of the silt river banks, stacking the components and saving space.
S4, driving support piles 3 (wood piles or bamboo piles) at the slope toe of the river side slope 2 along the extending direction of the river channel according to the designed interval;
s5, laying the bottom row of bamboo raft plates 4 with lantern rings 7, preferably, the gaps between adjacent bamboo raft plates 4 are 10mm wide, and sleeving the lantern rings 7 on the support piles 3; then, laying all the bamboo raft plates 4 according to a design arrangement mode (butt joint or staggered joint), preferably laying the bamboo raft plates 4 in a sequence from bottom to top, wherein the width of the joints among the bamboo raft plates 4 is preferably 10mm, forming bamboo raft slopes, and inserting T-shaped plug-in cards 5 between the bamboo raft plates 4 for clamping in the laying process;
s6, after the upper edges of the bamboo raft plates 4 in the uppermost row are clamped by the T-shaped card inserting pieces 5, the cement soil seal 6 is poured so as to be connected with the bamboo raft plates 4 and the river channel side slope 2.
S7, when the bamboo raft 4 needs to be maintained or replaced, the pressing plate 52 of the T-shaped inserting and clamping piece 5 around the bamboo raft 4 can be partially sawn off, and then a new inserting and clamping piece 5 is installed to compress after the bamboo raft 4 is replaced; or the two pressing plates 52 of the T-shaped inserting and clamping piece 5 are bent straight to take out the bamboo raft plate 4, the pressing plates 52 are bent again after the bamboo raft plate 4 is replaced until the pressing plates are pressed on the bamboo raft plate 4, and the part of the soil inserting plate 51 inserted into the soil is not required to be pulled out, so that the integrity of the slope surface is not influenced.
In the invention, the bamboo raft is used as a slope protection main body, belongs to the manufacture of natural ecological materials, and has biocompatibility, rough surface and large specific surface area. The bamboo resources are rich in China, and the bamboo can be degraded due to low cost, reproducibility and low environmental pollution, so that a large amount of resources are saved, the construction cost is reduced, and the investment is saved. Bamboo is natural in material, has good biocompatibility, is a material with application potential, and the effect of the novel bamboo fiber biomembrane carrier prepared by taking bamboo fiber as a raw material on water treatment is stable. Cutting the bamboo tube into pieces, and weaving into mesh.
When the bamboo raft is used for purifying the water quality of the river channel, the removal rate of COD can reach 74%, the removal rate of NO3-N can reach 95%, the removal rate of TP can reach 37%, and the effect of improving the water quality purification capability of the river channel is obvious. The microbial phospholipid content and dehydrogenase activity attached to the surface of the bamboo chips are high, so that space can be provided for the attachment growth and propagation of microbes, and the degradation of pollutants in a river can be continuously promoted.
The bamboo raft is adopted to protect the slope, thereby not only meeting the function requirement of the slope protection, preventing water and soil loss and scouring, but also being ecological, environment-friendly and purifying water quality, and creating favorable conditions for breeding aquatic animals and inhabiting and breeding activities of amphibians; therefore, the aim of improving resources and saving ecology is achieved on the basis of meeting the requirements of river channel treatment. The technology achieves two purposes, not only is the river course revetment, but also is a measure for improving water quality, stabilizing the water quality and restoring ecology.
In summary, the technology of the invention has the advantages of obvious long-term benefit, convenient construction and maintenance of the slope protection device, lower cost and no energy consumption during operation, can protect the side slope of the river channel, adsorb sewage, reduce pollution and adsorb harmful substances to the sewage of the river channel, purify the water body of the river channel for a long time and keep the biological diversity of the river channel. The device is simple, and the cost of manufacture is low, and the investment has practiced thrift the investment only for 1/3 ~ 1/5 of stone masonry bank protection or concrete bank protection.
In conclusion, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides an ecological bank protection device of saving type for set up on river course side slope (2) of silt soil river course both sides, its characterized in that: including supporting pile (3), bamboo raft bank protection and fixed establishment, supporting pile (3) fixed insertion is in river course side slope (2) toe department, the bamboo raft bank protection is laid on river course side slope (2), the bamboo raft bank protection is formed by polylith bamboo raft board (4) mutual concatenation, bamboo raft board (4) are the netted flat structure that the bamboo chip was woven, bamboo raft bank protection bottom and supporting pile (3) are fixed continuous, the design water level that the top is higher than silt soil river course on the river course extending direction, fixed establishment is including inserting fastener (5), insert fastener (5) in river course side slope (2), fix bamboo raft board (4) on river course side slope (2).
2. The ecological slope protection device of saving of claim 1, characterized in that: inserting and clamping pieces (5) are arranged between every two adjacent bamboo raft plates (4) for fixing.
3. The ecological slope protection device of saving type of claim 1 or 2, characterized in that: insert fastener (5) including inserting soil board (51) and connecting in inserting soil board (51) upper end in river course side slope (2) earth, clamp plate (52) compress tightly on bamboo raft board (4).
4. The ecological slope protection device of saving of claim 3, characterized in that: the inserting and clamping piece (5) is T-shaped and comprises two pressing plates (52) which are respectively positioned at two sides of an inserting soil plate (51), and the inserting soil plate (51) is vertical to the pressing plates (52).
5. The ecological slope protection device of saving of claim 1, characterized in that: the surface of the supporting pile (3) higher than the upper part of the soil body is provided with a carbonization layer.
6. The ecological slope protection device of saving of claim 1, characterized in that: the edge of the lower end of the bamboo raft revetment is provided with a lantern ring (7), and the lantern ring (7) is sleeved on the support.
7. The ecological slope protection device of saving of claim 1, characterized in that: and a cement soil seal (6) is arranged between the edge of the upper end of the bamboo raft revetment and the river channel side slope (2).
8. A construction method of an economical ecological slope protection device according to claim 1, characterized in that: the method comprises the following steps:
s1, manufacturing the bamboo raft plates (4), the supporting piles (3) and the inserting and clamping pieces (5) according to the design size in a factory in a standardized manner;
s2, mounting a lantern ring (7) at the lower edge of the bamboo raft plate (4) at the lowest row in the bamboo raft revetment;
s3, conveying the bamboo raft plates (4), the support piles (3) and the plug-in cards (5) to the bank side of the river channel;
s4, driving support piles (3) at intervals at the slope toe of the riverway side slope (2) along the extending direction of the riverway according to the designed interval;
s5, laying the bottom row of bamboo raft plates (4) with lantern rings (7), and sleeving the lantern rings (7) on the support piles (3); then according to design arrangement mode and rule interval, all lay bamboo raft board (4), form bamboo raft side slope to in the laying process, insert fastener (5) and fix between bamboo raft board (4).
9. Construction method according to claim 8, characterized in that: further comprising the steps of:
s6, fixing the upper edge of the top row of bamboo raft plates (4) by the inserting and clamping piece (5), then pouring cement soil seal (6), and connecting the bamboo raft plates (4) with the river channel side slope (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110024175.6A CN112832193A (en) | 2021-01-08 | 2021-01-08 | Economical ecological slope protection device and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010131964A1 (en) * | 2009-05-13 | 2010-11-18 | Jetton Solutions Ltd. | Water-barrier, comprising sandy soil and a slope, and a method for the provision thereof |
| CN205591235U (en) * | 2016-04-11 | 2016-09-21 | 广东水电二局股份有限公司 | Soil nailing wall supporting structure |
| CN207452915U (en) * | 2017-03-23 | 2018-06-05 | 四川农业大学 | A kind of bamboo ecological revetment |
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2021
- 2021-01-08 CN CN202110024175.6A patent/CN112832193A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010131964A1 (en) * | 2009-05-13 | 2010-11-18 | Jetton Solutions Ltd. | Water-barrier, comprising sandy soil and a slope, and a method for the provision thereof |
| CN205591235U (en) * | 2016-04-11 | 2016-09-21 | 广东水电二局股份有限公司 | Soil nailing wall supporting structure |
| CN207452915U (en) * | 2017-03-23 | 2018-06-05 | 四川农业大学 | A kind of bamboo ecological revetment |
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