CN108951543B - Method for constructing ecological bank protection by adopting in-situ treatment of bottom mud - Google Patents
Method for constructing ecological bank protection by adopting in-situ treatment of bottom mud Download PDFInfo
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- CN108951543B CN108951543B CN201810829419.6A CN201810829419A CN108951543B CN 108951543 B CN108951543 B CN 108951543B CN 201810829419 A CN201810829419 A CN 201810829419A CN 108951543 B CN108951543 B CN 108951543B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 12
- 238000011049 filling Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000010802 sludge Substances 0.000 claims description 25
- 239000002689 soil Substances 0.000 claims description 24
- 238000002955 isolation Methods 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000234643 Festuca arundinacea Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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- 238000002791 soaking Methods 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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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
- E02B3/128—Coherent linings made on the spot, e.g. cast in situ, extruded on the spot
-
- 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
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention relates to the technical field of construction of ecological revetments, and discloses a method for constructing ecological revetments by in-situ treatment of bottom mud, which comprises the following operation steps: A. leveling the revetment; B. laying a fixing band; C. the fixing belt fills mud for many times, and the mud at the bottom of the river is excavated for filling during mud filling; D. sealing the top of the mud layer; E. planting grass seeds. The invention can realize the water-air energy circulation between the river and the external environment and enhance the self-cleaning capability of the river.
Description
Technical Field
The invention relates to the technical field of construction of ecological revetments, in particular to a method for constructing an ecological revetments by in-situ treatment of bottom mud.
Background
The ecological revetment has a permeable natural river bed and a permeable natural river bed base, enriches the landform of a river, can fully ensure the water exchange and regulation functions between the river bank and a river water body, and has certain flood fighting strength. In the process of flood control in most local rivers at present, stone-built hard bank dikes are mostly adopted for the purpose of flood control, and although the stone-built hard bank dikes play a role in flood control, the stone-built hard bank dikes cut off the exchange of substances and energy of a river ecosystem and an external environment at the cost of sacrificing the function of the ecosystem, block the water-gas circulation, change the rivers into isolated harbors, have poor self-purification function of the rivers and are easy to pollute and decay.
Disclosure of Invention
The invention aims to provide a method for constructing an ecological bank protection by in-situ treatment of bottom mud so as to realize water-gas energy circulation between a river channel and the external environment and enhance the self-cleaning capability of the river channel.
In order to achieve the purpose, the invention adopts the following technical scheme: the method for constructing the ecological bank protection by adopting the in-situ treatment of the bottom mud comprises the following operation steps: A. leveling the revetment; B. laying a fixing band; C. the fixing belt fills mud for many times, and the mud at the bottom of the river is excavated for filling during mud filling; D. sealing the top of the mud layer; E. planting grass seeds.
The principle and the advantages of the scheme are as follows: the river bottom sludge is adopted for bank protection construction, the river bottom sludge is treated, the river channel is cleaned, the sludge can be fully utilized in the ecological construction process, and the purpose of ecological protection is achieved. The laid fixing band is used for fixing the filled sludge, so that the sludge can be naturally formed without loosening, and the bank protection structure is strengthened. And the mud layer is capped, so that the stability of the mud layer can be ensured, the mud layer is prevented from collapsing, and the stability of the bank protection structure is enhanced. The ecological revetment is constructed by adopting the silt accumulated at the bottom of the river, the stability of the revetment structure is ensured, the river channel is cleaned, the silt is used as the bottom layer of the revetment, the protection grass is planted on the surface of the mud layer, and plants are used for digesting and absorbing rich nutrient substances in the silt, so that the harmless resource utilization of the silt is achieved, the soil resource occupied by the revetment construction is avoided, the transportation cost of the soil is saved, and the ecological revetment with attractive and stable structure and outstanding ecological effect is formed. The sludge layer can facilitate the bank protection to drain water into the river, the water vapor in the river can be absorbed and utilized by the sludge layer, and the water vapor circulates through the sludge layer, so that the purpose of water vapor energy circulation is achieved, and the self-cleaning capability of the river channel is enhanced.
Preferably, as an improvement, in the step a, when the bank protection is finished, a water guide channel is excavated, the water guide channel is preferably extended into the river, and the excavated soil and crushed stones are collected. The water guide channel is used for quickly discharging accumulated water on the revetment into a river, so that the revetment accumulated water is prevented from being impacted by water flow, collapse is further generated, and the flood control effect of the revetment is enhanced.
Preferably, as an improvement, in step B, the fixing band used comprises a geogrid and a geogrid, when laying, a plurality of insertion tubes are fixed on the geogrid, the insertion tubes are inserted into the water guide channel one by one, the isolation net is laid on the geogrid, and the geogrid, the isolation net and the geogrid are fixed together. The intubate inserts in the diversion channel to guarantee the drainage effect of bank protection, prevent that the bank protection from breaking down the mud layer, the intubate can be with the water in the silt of geotechnological check room intussuseption discharge the river course fast simultaneously in, the efficiency that silt becomes dry with higher speed, accomplish with the high efficiency of guaranteeing to fill the mud work.
Preferably, in step C, during filling, the filling is performed in multiple times, and after filling the sludge each time, the next layer of sludge is filled again under the condition that the sludge is drained to the water spray and the sludge does not flow, and then the sludge layer is compacted. Adopt the mode of filling the mud layer many times to carry out the mud layer construction, can guarantee that each layer mud layer can fully effectively be discharged water, and then guarantee the stability of mud layer structure, prevent that moisture from being detained for a long time in the mud layer and being difficult to the drainage to cause the unstable condition of easily collapsing of mud layer from this.
Preferably, as an improvement, when filling the mud, the mud is uniformly sprayed into the geocell by adopting a spraying mode. Adopt the mode of pressure injection to fill out soil, can accelerate work efficiency on the one hand, on the other hand utilizes the pressure when spraying to make silt receive the extrusion and homodisperse, avoids the condition that silt agglomerates to guarantee the even stability of shore protection structure, do benefit to the planting growth of plant, and reach the purpose of consolidating the shore protection.
Preferably, as an improvement, a step of building an ecological retaining wall is further provided between the step B and the step C, and the specific operation is as follows: mixing soil and gravels according to the proportion of 3:1, filling the mixture into a woven bag, sealing the woven bag, placing the woven bag at the joint of a river channel and a river bank to form an ecological retaining wall, and piling on one side of the ecological retaining wall close to the river channel. Ecological barricade is used for propping against the mud layer on the one hand, prevents that the mud layer from collapsing, forms powerful support to the mud layer, and on the other hand can separate river course and shore protection, and the water in the buffering river course is to the pressure of shore protection to keep the stable in structure of shore protection, do benefit to long-term the use. Pile in one side that ecological barricade is close to the river course, can further strengthen the stability of ecological barricade, have the important function of consolidating the shore protection.
Preferably, as an improvement, in the step of constructing the ecological retaining wall, a connecting pipe is arranged between one end of the ecological retaining wall close to the river channel and the upper end of the revetment, and both ends of the connecting pipe are respectively fixed on the ecological retaining wall and the revetment. The connecting pipes are used for supporting and separating the revetment and the ecological retaining wall, so that the mud layer is prevented from collapsing to the ecological retaining wall, and the integral stabilizing effect of the revetment is enhanced.
Drawings
Fig. 1 is a sectional view of an ecological revetment constructed in accordance with an embodiment of the present invention.
Fig. 2 is a top view of an ecological revetment in an embodiment of the present invention.
FIG. 3 is an elevation view of a nail used in an embodiment of the present invention.
Fig. 4 is a top view of the dome of fig. 3.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the ecological retaining wall comprises a first branch pipe 1, a second branch pipe 2, a connecting pipe 3, a geogrid 4, a geocell 5, an ecological retaining wall 6, piles 7, inserting plates 8, domes 9, through holes 10, columns 11, swing legs 12 and nails 13.
The embodiment of the invention is described with reference to fig. 1 and 2, and the method for constructing the ecological bank protection by in-situ treatment of bottom mud integrally comprises the following operation steps:
1. the revetment is level, clears up the river course both sides, makes the slope of river bank 15 degrees to excavate the leading water channel, the leading water channel is in order to extend to the river in as the preference, collects soil and rubble excavated, buries the first branch pipe 1 along the slope of river bank underground in the ground of revetment, excavates the several wash port on first branch pipe 1.
2. Laying a fixing band, wherein the used fixing band comprises a geogrid 4 and a geogrid chamber 5, when laying, fixing a plurality of insertion pipes on the geogrid 4, inserting the insertion pipes into a water guide channel one by one, then spreading the geogrid 4 on the ground, laying an isolation net on the geogrid 4, binding and fixing the geogrid chamber 5 on the geogrid 4 by using a binding belt, and then fixing the geogrid chamber 5, the isolation net and four corners and the middle part of the geogrid chamber 4 together by using nails 13.
The structure of the used nail 13 is as shown in fig. 3 and 4, and comprises an inserting plate 8 and a nail body, wherein the inserting plate 8 is of a plate-shaped structure with 180-degree bending radian, the center of the bending arc is located at the central part of the inserting plate 8, the nail body comprises a round top 9 and a column body 11 which are distributed in a T shape, a circular arc-shaped through hole 10 which is matched with the radian of the inserting plate 8 is arranged on the round top 9, a plurality of swing legs 12 are arranged at the lower end of the column body 11, the swing legs 12 are hinged at the lower end of the column body 11 through hinges, and the swing legs 12 can only swing towards the outer side of the. During the use, insert picture peg 8 and nail body jointly in soil, picture peg 8 hinders pendulum foot 12 to the swing of the cylinder 11 outside this moment for pendulum foot 12 is vertical form and does benefit to the nail body and inserts to soil fast in, the in-service use of being convenient for. Then the inserting plate 8 is taken out from the through hole 10, the nail body is further inserted into the deep soil, the swing legs 12 lose the blocking of the inserting plate 8 at the moment, when the nail body is subjected to the resistance of the soil again, the swing legs 12 are unfolded towards the outer side of the nail body and are obliquely inserted into the deep soil, and therefore the nail body is enabled to firmly hook the soil, and the nail 13 enables the geocell 5, the isolation net and the geogrid 4 to be firmly fixed on the ground together to prevent looseness.
3. Building an ecological retaining wall 6, burying a second branch pipe 2 at the joint of a river channel and a river bank, welding and fixing the second branch pipe 2 and the lower end of a first branch pipe 1, mixing soil and gravels collected in the step 1 according to the proportion of 3:1, filling the mixture into a woven bag, sealing the woven bag, placing the woven bag at the joint of the river channel and the river bank to form the ecological retaining wall 6, piling 7 on one side of the ecological retaining wall 6 close to the river channel by using wood bars with the length of 40cm, welding a connecting pipe 3 between the first branch pipe 1 and the second branch pipe 2, and fixing two ends of the connecting pipe 3 on the ecological retaining wall 6 and the river bank respectively.
4. Fixing the belt for filling mud for multiple times, and excavating river bottom mud to fill the geocell 5; when filling the mud, filling for many times, uniformly spraying the mud into the geocell 5 in a pressure injection mode every time, after filling the mud every time, refilling the next layer of mud under the condition that the mud is drained to be drenched and the mud does not flow until the geocell 5 is filled with the mud, and then compacting the mud layer.
5. And (4) capping the mud layer, namely covering the soil dug out in the step (1) on the top of the mud layer formed in the step (4) and slightly tamping the soil.
6. Planting grass seeds, after the sludge is kept stand for 5 days and drained, soaking the seeds of the tall fescue in warm water at 30 ℃ for 2 hours, fishing up the seeds, uniformly scattering the seeds at all positions of the revetment, and applying 25 g of seeds per square meter of the revetment. After the spreading, the whole bank protection is covered by a plastic film and pressed to the film by soil blocks.
The method of the invention is adopted to construct the ecological bank protection, and the sludge in the river channel is fully utilized, thereby not only realizing the renovation and the cleaning of the river channel, but also fully utilizing the sludge in the ecological construction process and achieving the aim of ecological protection. The sludge layer can facilitate the bank protection to drain water into the river, the water vapor in the river can be absorbed and utilized by the sludge layer, and the water vapor circulates through the sludge layer, so that the purpose of water vapor energy circulation is achieved, and the self-cleaning capability of the river channel is enhanced. The diversion channel can guarantee the drainage effect of bank protection, can promote the rapid loss of moisture in the silt when filling mud simultaneously to guarantee that silt can drip dry fast, with the efficiency that improves the work of filling mud. When the fixing band is laid, the installed insertion pipe can promote drainage of a mud layer so as to ensure that accumulated water flows away quickly. The separation net can separate the mud layer from the water channel, and prevents mud from being poured into the water channel to cause the blockage of the water channel. Special nails 13 are adopted to strongly fix the geocell 5, the isolation net and the geogrid 4, so that the base layer is effectively prevented from collapsing. Set up ecological barricade 6 between shore protection and river course, can carry out the powerful support to the mud layer on the one hand, prevent that the mud layer from collapsing, on the other hand can separate river course and shore protection, and the water pressure of buffering river course to the shore protection strikes, maintains the stability of shore protection structure. The operation of multiple injection and mud filling is adopted during mud filling, so that each mud layer can be effectively drained, the condition that the mud layer is loosened due to accumulation of moisture among the mud layers is avoided, the structure of the mud layer is strengthened, and the mud layer can be uniformly distributed by adopting an injection mode, so that the shore protection is uniformly stressed and kept stable in use. Plants are planted at the top of the mud layer, so that greening can be enhanced, and the ecological construction effect can be enhanced.
The triangular bracket is formed among the first branch pipe 1, the second branch pipe 2 and the connecting pipe 3, so that the revetment and the ecological retaining wall 6 are powerfully supported, the revetment is prevented from offsetting to the ecological retaining wall 6 side, and the stability of the structure is kept.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The method for constructing the ecological bank protection by adopting the in-situ treatment of the bottom mud is characterized by comprising the following operation steps:
A. leveling the revetment, excavating a water guide channel when finishing the revetment, wherein the water guide channel is preferably extended into a river, and collecting excavated soil and gravels;
B. laying a fixing band, wherein the fixing band comprises a geogrid and a geogrid chamber, when the fixing band is laid, a plurality of insertion pipes are fixed on the geogrid, the insertion pipes are inserted into the water diversion channels one by one, an isolation net is laid on the geogrid, and the geogrid chamber, the isolation net and the geogrid are fixed together; fixing four corners and the middle parts of the geocell, the isolation net and the geogrid together by nails, wherein the nails comprise an inserting plate and a nail body, the inserting plate is of a plate-shaped structure with 180-degree bending radian, the center of the bending arc is positioned at the central part of the inserting plate, the nail body comprises a dome and a column body which are distributed in a T shape, the dome is provided with a circular-arc through hole matched with the radian of the inserting plate, the lower end of the column body is provided with a plurality of swinging legs, the swinging legs are hinged at the lower end of the column body through hinges, and the swinging legs can only swing towards the outer side of the column body; when the nail-shaped swinging leg is used, the inserting plate and the nail body are inserted into soil together, and the inserting plate prevents the swinging leg from swinging towards the outer side of the column body, so that the swinging leg is vertical, and the nail body is favorably and quickly inserted into the soil; then the inserting plate is taken out of the through hole, the nail body is further inserted into the deep soil, the swinging foot loses the blocking of the inserting plate at the moment, and when the nail body is subjected to the resistance of the soil again, the swinging foot is unfolded towards the outer side of the nail body and is obliquely inserted into the deep soil, so that the nail body firmly hooks the soil, the nail fixes the geocell, the isolation net and the geogrid on the ground together powerfully, and the looseness is prevented;
C. the fixing belt fills mud for many times, and the mud at the bottom of the river is excavated for filling during mud filling;
D. sealing the top of the mud layer;
E. planting grass seeds.
2. The method for constructing the ecological bank protection by in-situ treatment of the bottom mud according to claim 1, which is characterized in that: and C, filling the sludge for multiple times, filling the sludge for each time, refilling the next layer of sludge under the condition that the sludge is drained to be drenched and the sludge does not flow, and compacting the sludge layer.
3. The method for constructing the ecological bank protection by in-situ treatment of the bottom mud according to claim 2, which is characterized in that: when filling the mud, uniformly spraying the mud into the earthwork grid chamber by adopting a spraying mode.
4. The method for constructing the ecological bank protection by in-situ treatment of the bottom mud according to claim 1, which is characterized in that: and a step of building an ecological retaining wall is also arranged between the step B and the step C, and the concrete operation is as follows: mixing soil and gravels according to the proportion of 3:1, filling the mixture into a woven bag, sealing the woven bag, placing the woven bag at the joint of a river channel and a river bank to form an ecological retaining wall, and piling on one side of the ecological retaining wall close to the river channel.
5. The method for constructing the ecological bank protection by in-situ treatment of the bottom mud according to claim 4, which is characterized in that: in the step of building the ecological retaining wall, a connecting pipe is arranged between one end of the ecological retaining wall close to the river channel and the upper end of the revetment, and the two ends of the connecting pipe are respectively fixed on the ecological retaining wall and the revetment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810829419.6A CN108951543B (en) | 2018-07-25 | 2018-07-25 | Method for constructing ecological bank protection by adopting in-situ treatment of bottom mud |
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| CN201810829419.6A CN108951543B (en) | 2018-07-25 | 2018-07-25 | Method for constructing ecological bank protection by adopting in-situ treatment of bottom mud |
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| CN108951543B true CN108951543B (en) | 2020-05-19 |
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| CN109750627A (en) * | 2019-02-01 | 2019-05-14 | 张荣斌 | A kind of biology barricade shore protection assembly |
| CN110590316A (en) * | 2019-10-15 | 2019-12-20 | 中瀛港湾（厦门）建设工程有限公司 | Construction method of bank protection project |
| CN112523166A (en) * | 2020-11-06 | 2021-03-19 | 河海大学 | Method for constructing ecological bank protection |
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| CN202265799U (en) * | 2011-09-20 | 2012-06-06 | 北京正和恒基滨水生态环境治理有限公司 | Concrete flood control dam soil cover greening system |
| CN103821104A (en) * | 2012-11-16 | 2014-05-28 | 北京顺天绿色边坡科技有限公司 | Soil engineering sea sand sludge ecological bag (tube) reinforced retaining wall |
| CN105178245A (en) * | 2015-08-18 | 2015-12-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Large filling bag ecological embankment and revetment building method for river lake channel |
| CN107268532A (en) * | 2017-07-14 | 2017-10-20 | 河海大学 | A kind of plateau pastoral area ecological revetment |
| CN108035304A (en) * | 2017-12-25 | 2018-05-15 | 深圳市铁汉生态环境股份有限公司 | A kind of sludge handling method and ecological revetment structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938580B (en) * | 2014-03-21 | 2015-08-26 | 南大（常熟）研究院有限公司 | Purified in situ island structure and construction process thereof |
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- 2018-07-25 CN CN201810829419.6A patent/CN108951543B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202265799U (en) * | 2011-09-20 | 2012-06-06 | 北京正和恒基滨水生态环境治理有限公司 | Concrete flood control dam soil cover greening system |
| CN103821104A (en) * | 2012-11-16 | 2014-05-28 | 北京顺天绿色边坡科技有限公司 | Soil engineering sea sand sludge ecological bag (tube) reinforced retaining wall |
| CN105178245A (en) * | 2015-08-18 | 2015-12-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Large filling bag ecological embankment and revetment building method for river lake channel |
| CN107268532A (en) * | 2017-07-14 | 2017-10-20 | 河海大学 | A kind of plateau pastoral area ecological revetment |
| CN108035304A (en) * | 2017-12-25 | 2018-05-15 | 深圳市铁汉生态环境股份有限公司 | A kind of sludge handling method and ecological revetment structure |
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