CN1793516A - Mould bag line curtain and method for preventing falldown of river bank - Google Patents
Mould bag line curtain and method for preventing falldown of river bank Download PDFInfo
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- CN1793516A CN1793516A CN 200510136307 CN200510136307A CN1793516A CN 1793516 A CN1793516 A CN 1793516A CN 200510136307 CN200510136307 CN 200510136307 CN 200510136307 A CN200510136307 A CN 200510136307A CN 1793516 A CN1793516 A CN 1793516A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004576 sand Substances 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 32
- 238000007667 floating Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 14
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 2
- 241000282836 Camelus dromedarius Species 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000013049 sediment Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000004746 geotextile Substances 0.000 description 2
- 241001404789 Smilax glabra Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention relates to a mold-bag earthwork curtain and river bank collapse prevention and cure method. It belongs to earthwork installations used in river bank collapse prevention and cure and its method. It includes mold bag ranging body. Its middle is set earth work cloth curtain. Its top end is set lifting camel. And its lower part is set sand penetrating window. Many mold bag ranging curtains are set at eroding bank along flow direction. Each of them is normal to the flow direction. The invention has the advantages of simple practice, low cost and high effect. It can reduce ranging body percentage of coverage to reduce cost, and adjust near shore water flow. It has little waterproofing action and no flood detention.
Description
Technical field
The present invention relates to a kind of row's body facility that is used for the river bank collapse control, particularly a kind of moulding bag array-curtain that is used for the river bank collapse control belongs to the riverbank and administers the guard technology field.
Background technology
1993～1998 years, the direct economic loss that national big flood causes was up to 10,500 hundred million yuan.Collapse on the bank is one of major casualty of China great rivers two sides.Took place in the Changjiang river, Nenjiang, Song Hua River in 1998 under the situation of full river basin flood, the collapse on the bank dangerous situation not only makes the two sides tract run off just up to 500 many places, but also causes the dyke cracking, and the safety that seriously jeopardizes the flood control embankment has been destroyed the stable of river gesture simultaneously.Middle and lower reach of Yangtze River water front is very long, from Yichang～the river mouth segment length reaches 4249km, the residing natural environment of bank slope is not quite similar everywhere, so for a long time, collapse on the bank dangerous situation in two sides, the middle and lower reach of Yangtze River is serious, and its cumulative length reaches more than 1520 kilometer, account for 35.7% of water front length overall, the collapse on the bank width that has reaches 2.7km, and year rate of collapsing reaches 89.7m/a, and maximum collapses speed and reaches 55m/h.Folder section, Jingjiang levees literary composition village is before 98 years, Bei Cha is the gesture of alluvial, river, upstream gesture changes after the 98 ' great flood, folder section, literary composition village begins to wash away, after the Three Gorges Reservoir retaining operation, let out under the clear water this section also caused and obviously wash away influence, cause folder section, civilian village that the collapse on the bank dangerous situation successively once took place twice.On December 8th, 2005, especially big collapse on the bank dangerous situation takes place in credit Xing Mindi west, the Changjiang river stream dike section that is positioned at literary composition residential district, Ma Jiazhai township, the Jianglin County section face of Jingjiang, and collapse on the bank still has the gesture of continuation, threatens the security of the lives and property of 20,000 people in the credit Xing Mindi.The collapse on the bank dangerous situation took place in continuous 4 years in west stream dike, and move northward in the Changjiang river master flood road, let out under the clear water that to wash away levee toe be the main cause that causes collapse on the bank.Long 140 meters of section riverbank, river, Tongling, the Changjiang river on the 7th January in 2000 avalanche, 9 numbering heads of Tongling port office are fallen in the river, and a goods yard collapses half, and trestle falls in the river entirely.Similarly the condition of a disaster all has generation at home and abroad every year.
To wash away with alluvial be rivers silt moves result and the performance that constantly tends to be balanced under the effect in that waterpower is defeated, and the Nature disaster that causes is washed away in collapse on the bank often.For the riverbed that can wash away, when the current sand holding ability in somewhere during greater than the sand content of upstream incoming flow, this place will wash away, on the contrary then alluvial.Wash away and then easily cause disastrous collapse on the bank, the collapse on the bank dangerous situation is seriously threatening the riverine dyke and the people's safety.
Existing bank slide treatment measure is divided into two aspects: the one, consider from the bank slope angle, and take measures to strengthen the erosion resistibility of bank slope; The 2nd, consider from angle of current, change water flow structure, reduce the souring of current to bank slope.
The erosion resistibility of strengthening bank slope is important measures of bank slide treatment always.Typical bank slope such as the middle and lower reach of Yangtze River is the binary soil structure, and top is the strong viscous soil horizon of erosion resistibility, and the bottom is the sandy soil layer that is easy to wash away distortion.For a long time, main bank slide treatment measure is exactly smooth-going riprap protection, yet building stones of today source is more and more difficult, often need after processing, to transport to the destination from tens kilometers places in addition, and the jackstone life cycle is short, need often to safeguard that bank slope still is subjected to washing away of current and washes in a pan erosion.For this reason, many research units have done a large amount of research and have sought new measure, reduce treatment cost and improve improvement validity.Geotechnical fabric bag row body shore protection technology has been widely used in coast defence engineering abroad, and the construction depth of water can reach 50m, and flow velocity is greater than 2m/s.China institute of water section researched and developed new row's body technique in recent years and had applied for four patents: " administering compound row's body of collapse on the bank " (CN00257594.9), " the soft row of composite earthwork cloth " (CN00257595.7), " sash type mould sack for filling sand " (CN00257596.5) and " underwater drawing, arranging and construction technology thereof " (CN00130306.6).A common ground of above control measures is to protect the bank slope large tracts of land, improved row's body technique has been obtained certain effect in engineering, its validity also is improved gradually, but often need to set up the drain function that measures such as weeper drain or geotextiles bed course guarantee the bank protection body, increased difficulty of construction, and financial cost is difficult to still significantly reduce.
Simultaneously, changing the streamflow structure, to protect easy collapse on the bank district, is another behave of bank slide treatment.Except that ecological measure, water conservancy project measure commonly is as groynes, thin wall with stamp etc.Its major function is for adjusting the streamflow structure, and the protection riverbank is not directly washed away by incoming flow, is also improving the navigation channel, reduces meandering property, increases big vast beach face alluvial, is increasing the major trough degree of depth etc. and bringing into play important effect.Though these water conservancy project measures are widely used in engineering, all have common shortcoming: resistance effect is big, often becomes the obstruction of flood discharge in flood period; The financial cost height; Be easy to generate serious local scour hole in the groynes stem; Because the effect of groynes depends on the angle of cut of current incoming flow and groynes, the best angle of cut is considered between 15 ° to 30 ° usually.Therefore, in case current is next to changing, the effect of groynes just reduces, even complete obiteration.The groynes of forfeiture effect just becomes the obstruction that checks current, needs in time to remove.Therefore, rely on the regulation flow-shape to administer collapse on the bank, need carry out careful and thorough analysis and demonstration, can not generally carry out in the two sides, river using river bed change trend, and the cost height, original river current situation there is bigger change.
Bank slide treatment, purpose are exactly to allow powerful current directly wash away bank slope.Thereby the river bank collapse governing problem that China faces is badly in need of expanding, exploring new improvement thinking, takes into account bank slide treatment cost and regulation effect simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of moulding bag array-curtain and river bank collapse thereof and prevent and treat method, the one, reduce the domatic row's body coverage scale of commute collapse on the bank region shore slope, reduce financial cost significantly, reduce influence simultaneously to the original draining characteristics of bank slope; The 2nd, adjust the structure of offshore slope current, exempt or reduce directly washing away of current, and resistance effect is little, not flood detention.
The objective of the invention is to be achieved through the following technical solutions:
A kind of moulding bag array-curtain that is used for the river bank collapse control, contain by a plurality of bag mould bag of forming row bodies of being responsible for, it is characterized in that: the middle part at described mould bag row body is provided with geotechnical drape, floating drum is equipped with on top at geotechnical drape, bottom at geotechnical drape is provided with penetrating sand window, is horizontally arranged with reinforced bands on mould bag row's body and geotechnical drape.
The moulding bag array-curtain that is used for river bank collapse control of the present invention, its feature also is: the person in charge's bag that is positioned at the geotechnical drape upstream side in the described mould bag row body is closely adjacent to each other, and the person in charge's bag that is positioned at the downstream is separated from each other; The spacing that is positioned at geotechnical drape downstream person in charge's bag is 1～3 times of person in charge's bag diameter.The width of described mould bag row body is 1～2 times of geotechnical drape width, and the person in charge's bag diameter in the described mould bag row body is 15～60 centimetres; Described penetrating sand window adopts rectangle or trapezoidal, and its aperture length is 2～4 times of height.
The invention provides a kind of method that adopts moulding bag array-curtain that river bank collapse is prevented and treated, it is characterized in that: this method be with a plurality of moulding bag array-curtains along water (flow) direction be arranged at interval easily wash away bank slope domatic on, distance between the adjacent moulding bag array-curtain is 3～8 times of geotechnical drape width, makes each moulding bag array-curtain perpendicular to water (flow) direction.
The present invention compared with prior art, have the following advantages and the high-lighting effect: 1) moulding bag array-curtain is laid at a certain distance in water (flow) direction, row's body to the domatic coverage scale of bank slope below 25%, so can not reduce the drainage performance of original bank slope body, and construction link is simple, and financial cost obviously reduces; 2) most of bottom incoming flow is by the geotechnical drape top of leading, small part enters back side by the penetrating sand window of geotechnical drape bottom, and carry bottom sediment and deposit into the sand dune in the stream district of circling round, cheat with the tangible local scour of directly washing away, do not produce of avoiding current so not only improved bank slope slope flow structure, and can promote the collapse on the bank district that was easy to wash away originally to realize local silt alluvial; 3) as a kind of " flexible protective technology " of rivers bank slope, avoided the greatest drawback of the water conservancy project measure of rigidity, promptly can not change the principal direction of river gesture and original streamflow, resistance effect is little, do not influence overcurrent, not flood detention does not reduce original sediment transport capacity; 4) little to flow-shape, the river bed change influence of section upstream and downstream, technological facilities is simple, is suitable for being extensive use of in the rivers two sides.Therefore, the present invention is obvious to bank slope protection, bank slide treatment effect, and cost has also obtained remarkable reduction.
Description of drawings
Fig. 1 is the structural representation of moulding bag array-curtain provided by the invention.
Fig. 2 is the fundamental diagram of moulding bag array-curtain provided by the invention.
The arrangement diagram that Fig. 3 prevents and treats river bank collapse for moulding bag array-curtain provided by the invention.
The specific embodiment
Fig. 1 is the structural representation of moulding bag array-curtain provided by the invention.Each moulding bag array-curtain comprises mould bag row body 1, geotechnical drape 2, floating drum 3, penetrating sand window 4, reinforced bands 5.Mould bag row body, the geotechnical drape of not filling before silt or the concrete all are to make of geotextiles, are linked to be as a wholely, just on the make isolate different functional areas by making.Mould bag row body comprises a plurality of person in charge bags 6, and the person in charge's bag that is positioned at the geotechnical drape upstream side is more, be closely adjacent to each other, and be positioned at person in charge's bag in downstream less, separate at a certain distance each other.But the local river sand of mould bag row body filling is gathered materials on the spot, and saves the cost of bank slope protection, also can fill concrete, sodified water earth etc.Floating drum 3 is a light material hollow seal body, is positioned at the top of geotechnical drape, considers the flexibility of geotechnical drape, and floating drum 3 will be divided into a lot of segments, directly link to each other with geotechnical drape.Penetrating sand window 4 is positioned at the bottom of geotechnical drape 2, and the size of penetrating sand window is directly proportional with the depth of water, flow velocity, and aperture length is 2～4 times of height.The strength of materials of reinforced bands 5 is had relatively high expectations, and lateral arrangement is on mould bag row's body and geotechnical drape, and reinforced bands plays a part to separate filler in the mould bag row body around row's body pipe bag, prevents the leaky validity that has influence on whole row's body in a place.For geotechnical drape, reinforced bands plays bears the strong impact force of water flow that may occur, and impact force is passed to mould bag row body.The width of mould bag row body is generally 1～2 times of width of geotechnical drape; person in charge's bag diameter in the mould bag row body is general 15～60 centimetres; can suitably select according to the width of river scale or geotechnical drape, the spacing that is positioned at geotechnical drape downstream person in charge's bag is 1～3 times of person in charge's bag diameter.The width of geotechnical drape is directly proportional with the uniformity of the vertical distribution of flow velocity, can relatively select by economic technology.Be used to provide the floating drum 3 of buoyancy, square being directly proportional of its unit length volume size and flow velocity can be calculated definite according to the width and the flow rate of water flow of geotechnical drape.
Fig. 2 is the fundamental diagram of moulding bag array-curtain provided by the invention.Before bank slope protection or bank slide treatment, need smooth bank slope domatic, and exploration landform and main water (flow) direction, speed, the planning implementation scheme is determined the size and the mechanical characteristic requirement of moulding bag array-curtain.The operating principle of moulding bag array-curtain is: the vertical line characteristic distributions of flow rate of water flow and sediment concentration as can be known in the effluent road, float on geotechnical drape 2 in the water with most of current deflecting top, bank slope bottom always, the fraction bottom water flow enters the back side of geotechnical drape by penetrating sand window 4, and generation eddy with horizontal axis, the low flow velocity of formation circles round and flows the district, and then moulding bag array-curtain downstream bank slope is played the effect that reduces or prevent to wash away.From the vertical line CONCENTRATION DISTRIBUTION of water flow mud-sand, water surface sediment concentration is low, and is high more near the domatic sediment concentration of offshore slope more.The next husky penetrating sand window 4 by the geotechnical drape bottom in upstream enters and deposits and distinguishes at the stream that circles round, and finally passes in time in this stream district of circling round and deposits into a sand dune.The gravity that fills sand (or concrete etc.) mould bag row body 1 is able to firmly moulding bag array-curtain, is not washed away by current; Floating drum 3 provides big buoyancy, guarantees that geotechnical drape 2 is able to floating expansion.Under the thrust of current, geotechnical drape 2 chooses the bank slope slope flow from domatic, and impels alluvial constantly to carry out, imbed in the alluvial sand until arranging curtain, if change the stage of washing away over to again, moulding bag array-curtain can expose again and plays a role, so repeatedly, the bank slope slope stability can be got off.
The arrangement diagram that Fig. 3 prevents and treats river bank collapse for moulding bag array-curtain provided by the invention.With a plurality of moulding bag array-curtains along water (flow) direction be arranged at interval easily wash away bank slope domatic on, distance between the adjacent moulding bag array-curtain is generally 3～8 times of geotechnical drape width, specifically can adjust according to the local depth of water and velocity flow profile situation, each moulding bag array-curtain is perpendicular to water (flow) direction.
Claims (4)
1. one kind is used for the moulding bag array-curtain that river bank collapse is prevented and treated, contain by a plurality of mould bag row bodies of bag (6) forming (1) of being responsible for, it is characterized in that: the middle part at described mould bag row body is provided with geotechnical drape (2), floating drum (3) is housed on the top of geotechnical drape, be provided with penetrating sand window (4) in the bottom of geotechnical drape, on mould bag row's body and geotechnical drape, be horizontally arranged with reinforced bands (5).
2. according to the described moulding bag array-curtain that is used for river bank collapse control of claim 1, it is characterized in that: the person in charge's bag that is positioned at the geotechnical drape upstream side in the described mould bag row body is closely adjacent to each other, and the person in charge's bag that is positioned at the downstream is separated from each other; The spacing that is positioned at geotechnical drape downstream person in charge's bag is 1～3 times of person in charge's bag diameter; Fill river sand or concrete, sodified water earth etc. in the described mould bag row body.
3. according to claim 1 or the 2 described moulding bag array-curtains that are used for the river bank collapse control, it is characterized in that: the width of described mould bag row body is 1～2 times of geotechnical drape width, and the person in charge's bag diameter in the described mould bag row body is 15～60 centimetres; Described penetrating sand window adopts rectangle or trapezoidal, and its aperture length is 2～4 times of height.
4. method that adopts moulding bag array-curtain as claimed in claim 1 that river bank collapse is prevented and treated, it is characterized in that: this method be with a plurality of moulding bag array-curtains along water (flow) direction be arranged at interval easily wash away bank slope domatic on, distance between the adjacent moulding bag array-curtain is 3～8 times of geotechnical drape width, makes each moulding bag array-curtain perpendicular to water (flow) direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101363075A CN100347377C (en) | 2005-12-31 | 2005-12-31 | Mould bag line curtain and method for preventing falldown of river bank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101363075A CN100347377C (en) | 2005-12-31 | 2005-12-31 | Mould bag line curtain and method for preventing falldown of river bank |
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| Publication Number | Publication Date |
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| CN1793516A true CN1793516A (en) | 2006-06-28 |
| CN100347377C CN100347377C (en) | 2007-11-07 |
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| CNB2005101363075A Expired - Fee Related CN100347377C (en) | 2005-12-31 | 2005-12-31 | Mould bag line curtain and method for preventing falldown of river bank |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200895B (en) * | 2007-12-05 | 2010-06-02 | 三峡大学 | Method for repairing damage of underwater concrete panel slope protector |
| CN101949143A (en) * | 2010-06-08 | 2011-01-19 | 沈承秀 | Flexible protection system of double side slopes of water channel and riverway and construction method thereof |
| CN103422467A (en) * | 2012-05-17 | 2013-12-04 | 陈亚萍 | Method for damming by mucky soil filling bags |
| CN105155464A (en) * | 2015-08-27 | 2015-12-16 | 同济大学 | Floating plate device for deposition promotion and strengthening of sunken fascine mattress |
| CN105951667A (en) * | 2016-06-21 | 2016-09-21 | 上海市水利工程设计研究院有限公司 | Riverway structure reserved in reclamation district through mud filling pipe bags and construction method of riverway structure |
| CN109680657A (en) * | 2019-01-15 | 2019-04-26 | 中国水利水电科学研究院 | Spillway and its construction method |
| CN115059018A (en) * | 2022-06-24 | 2022-09-16 | 湖南理工学院 | Method for estimating distribution of construction materials in bank collapse treatment process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690585A (en) * | 1985-01-17 | 1987-09-01 | Holmberg Dick L | Erosion control foundation mat and method |
| JP3354421B2 (en) * | 1997-01-31 | 2002-12-09 | 東急建設株式会社 | Mat-like revetment or revetment structure |
| CN2302289Y (en) * | 1997-06-17 | 1998-12-30 | 工贸合营常州塑料编织总厂 | Earth work fabric soft revetment |
| CN2517784Y (en) * | 2001-08-16 | 2002-10-23 | 李兰英 | Soft drainage plate |
| CN2698844Y (en) * | 2004-05-13 | 2005-05-11 | 长江航道规划设计研究院 | Soft raft tied with concrete block |
-
2005
- 2005-12-31 CN CNB2005101363075A patent/CN100347377C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200895B (en) * | 2007-12-05 | 2010-06-02 | 三峡大学 | Method for repairing damage of underwater concrete panel slope protector |
| CN101949143A (en) * | 2010-06-08 | 2011-01-19 | 沈承秀 | Flexible protection system of double side slopes of water channel and riverway and construction method thereof |
| CN103422467A (en) * | 2012-05-17 | 2013-12-04 | 陈亚萍 | Method for damming by mucky soil filling bags |
| CN103422467B (en) * | 2012-05-17 | 2015-09-09 | 陈亚萍 | Mucky soil filling bag embankment method |
| CN105155464A (en) * | 2015-08-27 | 2015-12-16 | 同济大学 | Floating plate device for deposition promotion and strengthening of sunken fascine mattress |
| CN105951667A (en) * | 2016-06-21 | 2016-09-21 | 上海市水利工程设计研究院有限公司 | Riverway structure reserved in reclamation district through mud filling pipe bags and construction method of riverway structure |
| CN105951667B (en) * | 2016-06-21 | 2019-06-25 | 上海市水利工程设计研究院有限公司 | Using mud filling tube bag in enclosing tideland for cultivation region pre- profit retention river structure |
| CN109680657A (en) * | 2019-01-15 | 2019-04-26 | 中国水利水电科学研究院 | Spillway and its construction method |
| CN109680657B (en) * | 2019-01-15 | 2024-03-19 | 中国水利水电科学研究院 | Spillway and construction method thereof |
| CN115059018A (en) * | 2022-06-24 | 2022-09-16 | 湖南理工学院 | Method for estimating distribution of construction materials in bank collapse treatment process |
| CN115059018B (en) * | 2022-06-24 | 2024-04-26 | 湖南理工学院 | Construction material distribution estimation method for bank collapse treatment process |
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| Publication number | Publication date |
|---|---|
| CN100347377C (en) | 2007-11-07 |
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