CN101851906A - Debris flow guiding slot based on step anti-erosion toothed sill group and application thereof - Google Patents
Debris flow guiding slot based on step anti-erosion toothed sill group and application thereof Download PDFInfo
- Publication number
- CN101851906A CN101851906A CN201010198162A CN201010198162A CN101851906A CN 101851906 A CN101851906 A CN 101851906A CN 201010198162 A CN201010198162 A CN 201010198162A CN 201010198162 A CN201010198162 A CN 201010198162A CN 101851906 A CN101851906 A CN 101851906A
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- China
- Prior art keywords
- protection against
- against erosion
- debris flow
- notched sill
- erosion
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
Abstract
The invention discloses a debris flow guiding slot based on a step anti-erosion toothed sill group and the application thereof. The slot structurally comprises beam side walls and a step anti-erosion toothed sill group which is arranged between the walls, connected and matched with the same; the step anti-erosion toothed sill group comprises a plurality of anti-erosion toothed sills with a certain depth, and every two steps are distributed by a certain spacing; the two anti-erosion toothed sills are symmetrically distributed on the left side and the right side relative to the centerline of the guiding slot between the beam side walls to commonly form one step of the step anti-erosion toothed sill group; and the width D of the debris flow guiding slot is more than two times of horizontal length B of the anti-erosion toothed sills in the vertical direction of the beam side walls. Compared with the prior art, the invention can meet the requirements on the excretion of fluid with quite great changes from thin debris flow to mountain flood, can fully keep the up and down relationship of aquatic organisms in a gully, is beneficial to the ecological restoration a channel, can fully guarantee the stability of the beam side walls, is not easy to have debris flow deposition under the circumstance that the gradient of the gully is quite small, and is beneficial to long-termed operation.
Description
Technical field
The present invention relates to a kind of debris flow drainage waveguide technology, particularly relate to a kind ofly, be applicable to debris flow drainage groove and application thereof that diluted debris flow or water-rock debris flow or mountain area flood are drained based on step protection against erosion notched sill group based on the energy dissipating of debris flow soft base.
Background technology
Mud-rock flow has the unit weight more much higher than current, and its fluid diadactic structure that comprises chip soil has particularity, shows the inertia height, fails the characteristics such as power is strong, impact force is huge of moving.What mud-rock flow movement produced washes away strongly, cause the ditch bed that violent the change taken place, cause that the ditch bed is revealed the inside story and the avalanche of ditch bank, increased the solid matter source of supply mud-rock flow, increased the harm of mud-rock flow, to infrastructure such as the cities and towns in the hazardous area, two sides, village, road, water channel, electric power, communication lines, and serious harm is caused in farmland, forest etc.Therefore, the new structure that mud-rock flow washes away can be effectively controlled in exploitation, for the destructive power that reduces mud-rock flow, improves the safety of downstream protection object, has important social economic implications and ecological environment meaning.
In recent years, along with China's development of the West Regions continue carry out, numerous major infrastructure projects put into operation, the development and use mud-rock flow is piled up putting more effort of fan, the control mud-rock flow washes away and the problem of depositing becomes increasingly conspicuous.Therefore in numerous catchment basin of debris flow, the probability of outburst diluted debris flow, transiens mud-rock flow and mountain area flood is very big, and the exploitation row that satisfies this class mud-rock flow novel drainage groove of leading demand seems very urgent.
Traditional mud-rock flow protection against erosion is continued to use the full lining cutting pattern of canal for water conveyance, but because the extremely strong abrasion ability of mud-rock flow, causes that the engineering damage is fast, maintenance cost is high.What be used for the mud-rock flow protection against erosion at present laterally runs through the situation that the type notched sill is applicable to that generally the ditch bed is bigger than falling, and than falling less than 5% o'clock poor effect, alluvial occurs.Under the perennial draingage state, full lining cutting drainage groove in the past and laterally run through the type notched sill and blocked hydrobiological contact up and down in the ditch bed is unfavorable for the restoration of the ecosystem of ditch bed.
Application number is 200910058217.7 application for a patent for invention, is the applicant's early-stage Study achievement, discloses a kind of staggered notched sill type debris flow drainage groove.This drainage groove can satisfy drainage and answer wide fluid, keeps raceway groove upstream and downstream hydraulic connection, helps the raceway groove ecological recovery.But simultaneously, staggered notched sill produces debris flow body to stream energy dissipating in groove, and the existence of streaming can bring certain potential risk to the safety of drainage groove side wall; Under the less situation of ditch bed longitudinal river slope, streaming energy dissipating excessively easily causes the mud-rock flow alluvial in drainage groove, fall at ditch bed ratio and to reduce, the method that this patent application has taked to reduce notched sill length reduces streams energy dissipating, but because notched sill is interspersed between the line side wall, therefore along with the reducing of notched sill length, the short more stability of line side wall of can not giving more of notched sill provide abundant guarantee, solve thereby need take to increase the side wall embedded depth of foundation, but can cause the building costs increase too big like this.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art, a kind of debris flow drainage groove based on step protection against erosion notched sill group is provided, can not only realize under low cost that mud-rock flow washes away the dynamic equilibrium of down-cutting and alluvial, fully realize safety, the purpose of smooth and easy drainage mud-rock flow, satisfy the basin broad of outburst and change the fluid-evacuation demand from diluted debris flow to the mountain area flood, and can fully keep hydrobiological contact up and down in the ditch bed, help the raceway groove restoration of the ecosystem, simultaneously can utilize entad line effect fully to ensure the stability of line side wall, be not prone to the mud-rock flow alluvial at the ditch bed under the less situation than falling, help long-time running.
For achieving the above object, technical scheme of the present invention is:
The debris flow drainage groove that the present invention proposes based on step protection against erosion notched sill group, comprise the line side wall of both sides and place therebetween, coupled, the step protection against erosion notched sill group that is used, distribute at a certain distance between per two steps of described step protection against erosion notched sill group, described step protection against erosion notched sill group is made up of some protection against erosion notched sills with certain buried depth.Two protection against erosion notched sills between the line side wall, the center line of described relatively debris flow drainage groove is bilateral symmetry and distributes, and constitutes described step protection against erosion notched sill group's a step jointly; Described debris flow drainage groove width D (being the spacing between the line side wall of both sides) the lateral length B on the line side wall vertical direction (being the projected length of protection against erosion notched sill on line side wall vertical direction), satisfies D＞2B greater than 2 times of protection against erosion notched sills; Be that arbitrary described protection against erosion notched sill all has only an end to link to each other with the line side wall, do not run through between the line side wall, and the protection against erosion notched sill of forming described step protection against erosion notched sill group between the line side wall, the drainage groove center line is bilateral symmetry and distributes relatively, constitutes symmetric form step protection against erosion notched sill group.This symmetric form structure can fully keep hydrobiological contact up and down in the ditch bed, helps the raceway groove restoration of the ecosystem; Can fully ensure the stability of line side wall, not be prone to the mud-rock flow alluvial under the less situation than falling, help long-time running at the ditch bed.
The lateral length B of described protection against erosion notched sill on line side wall vertical direction is the 1/10-1/2 of debris flow drainage groove width D, satisfies 1/10D≤B＜1/2D; Drainage groove ditch bed ratio falls big more, and the value of the lateral length B of described protection against erosion notched sill on line side wall vertical direction is just big more.This helps saving to greatest extent the engineering quantity of described protection against erosion notched sill.
Described protection against erosion notched sill and line side wall connecting place are tilt angle alpha, and inclination is oblique downstream, promptly the protection against erosion notched sill link to each other with the line side wall end be positioned at the upstream than the other end; The value of tilt angle alpha is 45 °-75 °; Ditch bed ratio falls big more, and the value of tilt angle alpha is just big more.This incline structure helps the line of mud-rock flow.
Described protection against erosion notched sill is along on the line side wall vertical direction, and is low in the middle of being, by line side wall end height; Difference in height h falls 1 with the horizontal wall inscription ratio of the ratio of the lateral length B of protection against erosion notched sill on line side wall vertical direction: n is 1: 4-1: 20, promptly 1: n=h: B.The structure that this centre is low, both sides are high helps the mud-rock flow line, and helps producing bottom turbulent flow, fully energy dissipating.
Along on the line side wall longitudinal direction, the wide b in the top of described protection against erosion notched sill
1The wide b in＜bottom
2, the downstream is vertical, and upstream side tilts; The wide b in top
1Be 0.6-1.5m, the wide b in bottom
2Be 1.0-2.0m, upstream side bevel altitude H
1With the wide b in bottom
2, the wide b in top
1The upstream side ratio of the ratio of difference falls 1: m is 1: 0.4-1: 1, promptly 1: m=H
1: (b
2-b
1).This up-narrow and down-wide structure helps the protection against erosion notched sill and keep stable under mud-rock flow impacts.
Described debris flow drainage groove can adopt stone masonry or concrete or form of structure such as steel concrete or galvanized wire cage.Spacing L between per two steps of described step protection against erosion notched sill group is 8.0-25.0m, and described protection against erosion notched sill buried depth H is 1.5-2.5m; Keep rational buried depth and spacing, can guarantee the safety of protection against erosion notched sill and line side wall.
The existing vertical soft basic effect of energy dissipation of described debris flow drainage groove has the entad line effect of symmetrical notched sill again, is specially adapted to ditch bed ratio and falls 3%-12%, is used for the control that diluted debris flow or water-rock debris flow or mountain area flood are drained.Just because of the entad line effect of symmetrical notched sill, therefore can fully ensure the stability of line side wall, have stronger washing away at the ditch bed under the less situation than falling, be not prone to the mud-rock flow alluvial, help long-time running.
Alternating action at fluid scouring down-cutting and alluvial, the present invention is based on the energy dissipating effect of soft base between symmetrical protection against erosion notched sill, with line side wall and the common line effect of protection against erosion notched sill, make described debris flow drainage groove can be applied to the control that diluted debris flow or water-rock debris flow or mountain area flood are drained.When flow was big, the present invention made full use of lower floor's turbulent flow of mud-rock flow (or flood) and mass exchange between the sinking of the top layer fluid inside kinetic energy that dissipates, and prevents down-cutting; When flow hour, the souring that makes full use of line prevents the silt alluvial, realizes that mud-rock flow (or flood) washes away the dynamic equilibrium of down-cutting and alluvial, reaches purpose safe, smooth and easy drainage mud-rock flow.The symmetric form structure that the present invention proposes can effectively be regulated and control cheuch and wash away-deposit balance, reduces the erosion damage ability of mud-rock flow, can effectively prevent the alluvial of ditch bed again, reduces the operation and maintenance cost of preventive works, ensures the safety of downstream protection object.Described debris flow drainage groove mainly is built in mud-rock flow and piles up on the fan, with mud-rock flow according to design current velocity, stream guiding design section.
Compared with prior art, the invention has the beneficial effects as follows: compare with full lining cutting drainage groove structure, save cost more than 15%, and help the operational management of engineering later stage; Compare with laterally running through the type notched sill, than falling under the less situation, prevent that the alluvial effect is better, investment more economizes, and can satisfy the broad variation fluid-evacuation demand of basin outburst from diluted debris flow to the mountain area flood at the ditch bed; With application number is that 200910058217.7 application for a patent for invention (staggered notched sill type debris flow drainage groove) is compared; effectively continuing on the basis of its ecological protection advantage; because the entad line effect of symmetrical notched sill; can not produce the situation of washing away line side wall basis of streaming; can more fully ensure the stability of line side wall; can produce stronger souring at the ditch bed than falling under the less situation, make mud-rock flow be difficult for producing the alluvial phenomenon, and then guarantee drainage groove long-time running safety.
Description of drawings
Fig. 1 is step protection against erosion notched sill group's a longitudinal sectional view.
Fig. 2 is a vertical view of the present invention.
Fig. 3 is a transverse sectional view of the present invention.
Number in the figure is as follows:
1 protection against erosion notched sill, 2 line side walls
The lateral length of B protection against erosion notched sill on line side wall vertical direction
D debris flow drainage groove width α angle of inclination
b
1The wide b in the top of protection against erosion notched sill
2The bottom of protection against erosion notched sill is wide
H protection against erosion notched sill buried depth
Spacing between per two steps of L step protection against erosion notched sill group
The height difference H of h protection against erosion notched sill
1The upstream side bevel altitude
1: n horizontal wall inscription ratio falls 1: m upstream side ratio falls
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are further described.
Embodiment one
As Fig. 1, Fig. 2, shown in Figure 3.At drainage area is 2.0km
2, to pile up covering of the fan gradient (being that ditch bed ratio falls) be 12%.Main consideration diluted debris flow, water-rock debris flow and mountain torrents under design standard.Pile up on the fan at mud-rock flow, build debris flow drainage groove based on symmetrical step protection against erosion notched sill group, comprise line side wall 2 and place therebetween, coupled, the step protection against erosion notched sill group that is used, distribute at a certain distance between per two steps of described step protection against erosion notched sill group, described step protection against erosion notched sill group is made up of some protection against erosion notched sills 1 with certain buried depth.Spacing L between per two steps of described step protection against erosion notched sill group is 8.0m, and protection against erosion notched sill 1 buried depth H is 2.5m.
Two protection against erosion notched sills 1 between line side wall 2, the center line of described relatively debris flow drainage groove is bilateral symmetry and distributes, and constitutes described step protection against erosion notched sill group's a step jointly; Described debris flow drainage groove width D is greater than the lateral length B of 2 times of protection against erosion notched sills 1 on line side wall (2) vertical direction.At P
2%Under the design standard, the mud-rock flow flow of drainage groove is 28.0m
3/ s, D gets 3.0m, and B gets 1.2m.Protection against erosion notched sill 1 is tilt angle alpha with line side wall 2 connecting places, and inclination is oblique downstream, and α gets 75 °.
Protection against erosion notched sill 1 is along on line side wall 2 vertical direction, and is low in the middle of being, by line side wall 2 end height; The difference in height h of protection against erosion notched sill 1 falls 1 with the horizontal wall inscription ratio of the ratio of the lateral length B of protection against erosion notched sill 1 on line side wall 2 vertical direction: n got 1: 4.Along on line side wall 2 longitudinal directions, the wide b in the top of protection against erosion notched sill 1
1Get 0.6m, the wide b in bottom
2Get 1.0m, the downstream is vertical, and upstream side tilts; Upstream side bevel altitude H
1With the wide b in bottom
2, the wide b in top
1The upstream side ratio of the ratio of difference falls 1: m got 1: 0.4.H
1Get 1.0m.
Embodiment two
As Fig. 1, Fig. 2, shown in Figure 3.At drainage area is 20.0km
2, to pile up the covering of the fan gradient be 3%.Main consideration water-rock debris flow and mountain torrents under design standard.No longer repeat to give unnecessary details with embodiment one something in common, difference is: the spacing L between per two steps of described step protection against erosion notched sill group is 25.0m, and protection against erosion notched sill 1 buried depth H is 1.5m.
At P
2%Under the design standard, the mud-rock flow flow of drainage groove is 100.0m
3/ s, D gets 16.0m, and B gets 1.6m; Tilt angle alpha is got 45 °; The horizontal wall inscription ratio falls 1: n got 1: 20; The wide b in top
1Get 1.5m, the wide b in bottom
2Get 2.0m, the upstream side ratio falls 1: m got 1: 1.H
1Get 0.5m.
Claims (10)
1. debris flow drainage groove based on step protection against erosion notched sill group, comprise line side wall (2) and place therebetween, coupled, the step protection against erosion notched sill group who is used, described step protection against erosion notched sill group is made up of some protection against erosion notched sills (1) with certain buried depth, distribute at a certain distance between per two steps of described step protection against erosion notched sill group, it is characterized in that: two protection against erosion notched sills (1) are between line side wall (2), the center line of described relatively debris flow drainage groove is bilateral symmetry and distributes, and constitutes described step protection against erosion notched sill group's a step jointly; Described debris flow drainage groove width D satisfies D＞2B greater than the lateral length B of 2 times of protection against erosion notched sills (1) on line side wall (2) vertical direction.
2. the debris flow drainage groove based on step protection against erosion notched sill group according to claim 1, it is characterized in that: the lateral length B of protection against erosion notched sill (1) on line side wall (2) vertical direction is the 1/10-1/2 of debris flow drainage groove width D, satisfies 1/10D≤B＜1/2D.
3. the debris flow drainage groove based on step protection against erosion notched sill group according to claim 1 is characterized in that: protection against erosion notched sill (1) is tilt angle alpha with line side wall (2) connecting place, and inclination is oblique downstream.
4. according to the arbitrary described debris flow drainage groove based on step protection against erosion notched sill group of claim 1-3, it is characterized in that: protection against erosion notched sill (1) is along on line side wall (2) vertical direction, and is low in the middle of being, high by line side wall (2) end.
5. according to the arbitrary described debris flow drainage groove of claim 1-3, it is characterized in that based on step protection against erosion notched sill group: along on line side wall (2) longitudinal direction, the wide b in top of protection against erosion notched sill (1)
1The wide b in＜bottom
2, the downstream is vertical, and upstream side tilts.
6. the debris flow drainage groove based on step protection against erosion notched sill group according to claim 3 is characterized in that: tilt angle alpha is 45 °-75 °.
7. the debris flow drainage groove based on step protection against erosion notched sill group according to claim 4, it is characterized in that: along on line side wall (2) vertical direction, the horizontal wall inscription ratio of the ratio of the difference in height h of protection against erosion notched sill (1) and protection against erosion notched sill (1) the lateral length B on line side wall (2) vertical direction falls 1: n is 1: 4-1: 20.
8. the debris flow drainage groove based on step protection against erosion notched sill group according to claim 5 is characterized in that: the wide b in top
1Be 0.6-1.5m, the wide b in bottom
2Be 1.0-2.0m, upstream side bevel altitude H
1With the wide b in bottom
2, the wide b in top
1The upstream side ratio of the ratio of difference falls 1: m is 1: 0.4-1: 1.
9. according to the arbitrary described debris flow drainage groove of claim 1-3 based on step protection against erosion notched sill group, it is characterized in that: the spacing L between per two steps of described step protection against erosion notched sill group is 8.0-25.0m, and protection against erosion notched sill (1) buried depth H is 1.5-2.5m.
10. the application of the debris flow drainage groove based on step protection against erosion notched sill group as claimed in claim 1, it is characterized in that: described debris flow drainage groove is applicable to that 3%-12% falls in ditch bed ratio, is used for the control that diluted debris flow or water-rock debris flow or mountain area flood are drained.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010198162A CN101851906A (en) | 2010-06-11 | 2010-06-11 | Debris flow guiding slot based on step anti-erosion toothed sill group and application thereof |
| PCT/CN2011/075567 WO2011153956A1 (en) | 2010-06-11 | 2011-06-10 | Debris flow drainage groove based on cascade antiscour notched sill group and application thereof |
| US13/702,466 US20130078037A1 (en) | 2010-06-11 | 2011-06-10 | Debris flow drainage canal based on cascade antiscour notched sill group and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010198162A CN101851906A (en) | 2010-06-11 | 2010-06-11 | Debris flow guiding slot based on step anti-erosion toothed sill group and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101851906A true CN101851906A (en) | 2010-10-06 |
Family
ID=42803576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010198162A Pending CN101851906A (en) | 2010-06-11 | 2010-06-11 | Debris flow guiding slot based on step anti-erosion toothed sill group and application thereof |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20130078037A1 (en) |
| CN (1) | CN101851906A (en) |
| WO (1) | WO2011153956A1 (en) |
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| CN102174803A (en) * | 2011-04-01 | 2011-09-07 | 中国科学院水利部成都山地灾害与环境研究所 | Assembled drainage canal of debris flows and construction method thereof |
| WO2011153956A1 (en) * | 2010-06-11 | 2011-12-15 | 中国科学院水利部成都山地灾害与环境研究所 | Debris flow drainage groove based on cascade antiscour notched sill group and application thereof |
| CN103882835A (en) * | 2014-04-09 | 2014-06-25 | 中国水利水电第七工程局有限公司 | Closure building on wide and deep soft foundation river |
| CN104831687A (en) * | 2015-05-19 | 2015-08-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Debris flow drainage groove provide with truss type energy dissipating sill |
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-
2010
- 2010-06-11 CN CN201010198162A patent/CN101851906A/en active Pending
-
2011
- 2011-06-10 WO PCT/CN2011/075567 patent/WO2011153956A1/en active Application Filing
- 2011-06-10 US US13/702,466 patent/US20130078037A1/en not_active Abandoned
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011153956A1 (en) * | 2010-06-11 | 2011-12-15 | 中国科学院水利部成都山地灾害与环境研究所 | Debris flow drainage groove based on cascade antiscour notched sill group and application thereof |
| CN102174803A (en) * | 2011-04-01 | 2011-09-07 | 中国科学院水利部成都山地灾害与环境研究所 | Assembled drainage canal of debris flows and construction method thereof |
| CN102174803B (en) * | 2011-04-01 | 2012-10-03 | 中国科学院水利部成都山地灾害与环境研究所 | Assembled drainage canal of debris flows and construction method thereof |
| CN103882835A (en) * | 2014-04-09 | 2014-06-25 | 中国水利水电第七工程局有限公司 | Closure building on wide and deep soft foundation river |
| CN104831687B (en) * | 2015-05-19 | 2017-01-04 | 中国科学院、水利部成都山地灾害与环境研究所 | Truss-like energy dissipating rib sill debris flow drainage groove |
| CN104831687A (en) * | 2015-05-19 | 2015-08-12 | 中国科学院、水利部成都山地灾害与环境研究所 | Debris flow drainage groove provide with truss type energy dissipating sill |
| CN105178255A (en) * | 2015-08-22 | 2015-12-23 | 中国科学院水利部成都山地灾害与环境研究所 | Measuring and calculating method for length of deep pool segment of step-deep pool type debris flow drainage canal |
| CN107806065A (en) * | 2017-09-28 | 2018-03-16 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of stage beam pattern debris flow drainage groove and its application |
| CN107806065B (en) * | 2017-09-28 | 2023-02-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Stage beam flow type debris flow drainage groove and application thereof |
| CN110499719A (en) * | 2019-08-28 | 2019-11-26 | 四川建筑职业技术学院 | A kind of mud-rock flow erosion control rib sill structure and system |
| CN111639444A (en) * | 2020-06-19 | 2020-09-08 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating sand blocking rate of debris flow blocking dam and application |
| CN111639444B (en) * | 2020-06-19 | 2023-02-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating sand blocking rate of debris flow blocking dam and application |
| CN113944140A (en) * | 2021-10-27 | 2022-01-18 | 浙江华东工程建设管理有限公司 | Scour protection hits drainage device suitable for high muddy stone stream calamity area bank slope formula pier |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011153956A1 (en) | 2011-12-15 |
| US20130078037A1 (en) | 2013-03-28 |
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