CN104612106B - A kind of permeable geotechnique soft raft structure - Google Patents
A kind of permeable geotechnique soft raft structure Download PDFInfo
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- CN104612106B CN104612106B CN201410807386.7A CN201410807386A CN104612106B CN 104612106 B CN104612106 B CN 104612106B CN 201410807386 A CN201410807386 A CN 201410807386A CN 104612106 B CN104612106 B CN 104612106B
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- arrangement
- permeable
- soft raft
- block
- geotechnique
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- 239000004744 fabric Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005336 cracking Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 19
- 238000002513 implantation Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 239000004746 geotextile Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 230000009514 concussion Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 208000034693 Laceration Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
Abstract
The invention discloses a kind of permeable geotechnique soft raft structure, comprise be positioned at below arrangement and uniform array be arranged at arrangement upper surface concrete block, it is characterized in that, the described arrangement interstitial site be sunken in undersurface part between concrete block is also provided with some permeable openings, the arrangement that permeable opening faces limit meets water direction is fixedly installed block cloth, covers described permeable opening when block cloth falls.The present invention has soft raft mattress sinking can be facilitated to operate, improve the advantage of the Efficiency and accuracy of mattress sinking implantation, improves soft raft to the protected effect in riverbed and extends application life.
Description
Technical field
The present invention relates to a kind of riparian protection technology, especially relate to a kind of permeable geotechnique soft raft structure.
Background technology
Existing soft raft is a kind of riverbed and bank protection technology that extend out on geotextile process soft base technique, the nineties in last century, is used to the middle and lower reach of Yangtze River and Estuary navigation channel regulation and riverbank and coast environmental protection engineering.Over more than 20 year, numerous designs and engineering construction personnel did many discussions to the structural shape of soft raft and mattress sinking mode etc., but there is no larger improvement, the ordinary construction of existing soft raft, generally comprise and be positioned at below and be layed in the concrete block that the arrangement of both sides, riverbed and uniform intervals are arranged in arrangement top, such as China 201410121675.1 once disclosed a kind of interlocking segment soft raft, namely have employed this structure.In existing part soft raft structure, also set up reinforced bands to improve intensity, such as a kind of concrete body interlocking segment soft raft disclosed in China's number of patent application 201220379345.9, is this structure.
Above-mentioned existing soft raft structure, during site operation, all adopt first soft raft file leader section to be laid to be fixed on riverbed two upper lateral part river levee, then the Working Ships carrying soft raft last person part being provided with reverse turning bed structure is adopted, Working Ships outwards slowly travels and guides arrangement to sink in river by reverse turning bed structure, makes it sink by deadweight and fit on bottom surface, both sides, riverbed.
During this existing soft raft mattress sinking, geotextiles is excessive by water pressure in sinking watching, not easily sink, and the concrete block all wt of ballast all acts in geotextiles above, further increase various power when soft raft in sinking watching is floating to be shaken, cause the danger that soft raft turnup easily occurs, tears.
Specifically, by technical research during site operation, and the research of the stressed under water of soft raft and failure mechanism is found, in the process of arranging, when flow rate of water flow is larger, isostere is very large by resistance, isostere is easily slided, the upper limb of its underwater portion, under the lifting of impulsive force and turbulent fluctuation water body, is easy to turnup, causes adverse consequences.Its consequence one soft raft is left originally design bed position, do not reach designing requirement, and cause the waste of isostere, reduce soft raft protected effect.Two is after the anterior turnup of isostere; increase upstream extremity isostere water side; increase the stop to current and detour flow; make turbulent water near isostere, rolling stronger; and increase local velocity; thus cause isostere to shake up and down under flow action, floating, and then may arrangement be torn, this reduces soft raft Global Macros effect and application life.
Summary of the invention
For above-mentioned the deficiencies in the prior art; technical problem to be solved by this invention is: how to provide one that soft raft mattress sinking can be facilitated to operate; improve the Efficiency and accuracy of mattress sinking implantation, and then improve soft raft to the protected effect in riverbed and the permeable increased the service life geotechnique soft raft structure.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of permeable geotechnique soft raft structure, comprise be positioned at below arrangement and uniform array be arranged at arrangement upper surface concrete block, it is characterized in that, the described arrangement interstitial site be sunken in undersurface part between concrete block is also provided with some permeable openings, the arrangement that permeable opening faces limit meets water direction is fixedly installed block cloth, covers described permeable opening when block cloth falls.
Like this, between concrete block, be provided with permeable opening and block cloth, when mattress sinking operates, current through permeable open flow, can be discharged the water body of arrangement below, are beneficial to the sedimentation of arrangement effectively, slow down concussion drift row, the phenomenon of floating mat occurs, improves the Efficiency and accuracy of mattress sinking implantation.Simultaneously after mattress sinking, the setting of block cloth can shelter from permeable opening by Parallel to the flow direction, well closure of openings is lived, reaches and well protect beach effect and increase the service life.
As optimization, described permeable opening by two intersect ends and not cracking and form on the same line.Like this, permeable opening has cracking of certain angle by two and forms, when mattress sinking is operated, article two, the arrangement between cracking can be dug with on current direction, below making arrangement, current as far as possible can vertically by permeable opening, at utmost slow down the impact force of incline direction, be beneficial to the vertical sedimentation implantation of arrangement like this, improve implantation accuracy.
Further, described permeable opening is by cracking of arranging of a Parallel to the flow direction be connected to this crack one end, downstream cracking of extending in the middle part of Vertical dimension riverbed and form; Rectangular and the block cloth of described block cloth self and arrangement two sew up line and two and crack and just form rectangles, and the loose corner parts of block cloth covers described two and cracks.
Like this, the open end of permeable opening and block cloth is arranged along back upper place, make it consistent with wave impact resultant direction by water impact with riverbed, the occlusion effect that after at utmost improve mattress sinking, block cloth is cracked to two, two of the simultaneously rectangular and block cloth of block cloth self and arrangement sew up line and two and crack and just form the structures of rectangles, that can improve block cloth self like this is connected and fixed intensity, simultaneously two of block cloth are sewed up line and can be considered as defining the effect of twice reinforcing rib in the be hit front in direction of cracking, reduce because arranging of cracking reduces on arrangement bulk strength the impact brought.So at utmost improving soft raft to the protected effect in riverbed extends its application life.
As optimization, in described arrangement, corresponding each concrete block position correspondence is fixedly installed two pairs of tethers, and described concrete block two ends are symmetrically arranged with two circle grooves and are fixed in arrangement by tether at groove.
Like this, can conveniently arrange and being fixedly connected with between concrete block, convenient construction.
As optimization, permeable opening entirety is arranged in row's shape, often arranges permeable opening offset and arranges and make spacing between the permeable opening of arbitrary neighborhood equal.Like this, stress distribution can be made the most even, reduce the impact of permeable opening on arrangement bulk strength better, and then while maximum water permeable area is provided, ensure self maximum intensity of arrangement, increase the service life.
Compared to prior art, the present invention possesses following advantage:
1, have employed the arrangement of local half opening in the present invention, in the process of arranging, the water body under arrangement is appeared effectively, reduce difficulty of construction; When arrangement sinks under water middle, due to flowing water flow path direction downstream, again the arrangement of darning is paved on the quadrangular window be left unlocked or unlatched, well reach the effect protecting the steady groove in beach.This structure is more suitable for constructing in large depth of water section; both ensure that soft raft self structure safety; below ensureing soft raft again, river silt is not flushed away, therefore possesses the advantage that construction is simple, protected effect is good, is particularly suitable for the section that flow velocity in river is large, the depth of water is large and practices.
2, the quadrangular window structure of being left unlocked or unlatched in the present invention is exactly the structural advantage utilizing self, mattress sinking is carried out by self gravity and resistance to water-flow difference, this and the existing technology of arranging have optimization in essence, by these windows, improve the obstruct by force to current or encirclement, serve and dredge and cushioning effect, reduce resistance to water-flow, contribute to better improving flow-shape.
3, in the present invention, not only disclose the method adopting and optimize arrangement, also disclosed concrete quadrilateral structure and the layout structure of setting, the permeable optimized effect simultaneously playing reduction difficulty of construction can be made, also maximised the stability of soft raft self simultaneously.
In sum, the present invention has soft raft mattress sinking can be facilitated to operate, improve the advantage of the Efficiency and accuracy of mattress sinking implantation, improves soft raft to the protected effect in riverbed and extends application life.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structure for amplifying schematic diagram of independent permeable aperture position in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1-2, a kind of permeable geotechnique soft raft structure, comprise the arrangement 1 that is positioned at below and uniform array is arranged at the concrete block 2 of arrangement 1 upper surface, described arrangement 1 interstitial site be sunken in undersurface part between concrete block 2 is also provided with some permeable openings 4, the arrangement that permeable opening faces limit meets water direction is fixedly installed block cloth 3, covers described permeable opening 4 when block cloth 3 falls.
Like this, between concrete block, be provided with permeable opening and block cloth, when mattress sinking operates, current through permeable open flow, can be discharged the water body of arrangement below, are beneficial to the sedimentation of arrangement effectively, slow down concussion drift row, the phenomenon of floating mat occurs, improves the Efficiency and accuracy of mattress sinking implantation.Simultaneously after mattress sinking, the setting of block cloth can shelter from permeable opening by Parallel to the flow direction, well closure of openings is lived, reaches and well protect beach effect and increase the service life.
Wherein, described permeable opening 4 by two intersect ends and not cracking and form on the same line.Like this, permeable opening has cracking of certain angle by two and forms, when mattress sinking is operated, article two, the arrangement between cracking can be dug with on current direction, below making arrangement, current as far as possible can vertically by permeable opening, at utmost slow down the impact force of incline direction, be beneficial to the vertical sedimentation implantation of arrangement like this, improve implantation accuracy.During concrete enforcement, two crack to grow up and are generally arranged to about 20cm, ensure arrangement bulk strength while can completing permeable decompression well.
Wherein, described permeable opening 4 is by cracking of arranging of a Parallel to the flow direction be connected to this crack one end, downstream cracking of extending in the middle part of Vertical dimension riverbed and form; Rectangular and the block cloth of described block cloth 3 self 3 and arrangement 1 two sew up line and two and crack and just form rectangles, and the loose corner parts of block cloth 3 covers described two and cracks.
Like this, the open end of permeable opening and block cloth is arranged along back upper place, make it consistent with wave impact resultant direction by water impact with riverbed, the occlusion effect that after at utmost improve mattress sinking, block cloth is cracked to two, two of the simultaneously rectangular and block cloth of block cloth self and arrangement sew up line and two and crack and just form the structures of rectangles, that can improve block cloth self like this is connected and fixed intensity, simultaneously two of block cloth are sewed up line and can be considered as defining the effect of twice reinforcing rib in the be hit front in direction of cracking, reduce because arranging of cracking reduces on arrangement bulk strength the impact brought.So at utmost improving soft raft to the protected effect in riverbed extends its application life.
Wherein, in described arrangement 1, corresponding each concrete block 2 position correspondence is fixedly installed two pairs of tethers 5, and described concrete block 2 two ends are symmetrically arranged with two circle grooves and are fixed in arrangement 1 by tether 5 at groove.
Like this, can conveniently arrange and being fixedly connected with between concrete block, convenient construction.
Wherein, permeable opening 4 entirety is arranged in row's shape, often arranges permeable opening 4 and shifts to install and make spacing between the permeable opening of arbitrary neighborhood 4 equal.Like this, stress distribution can be made the most even, reduce the impact of permeable opening on arrangement bulk strength better, and then while maximum water permeable area is provided, ensure self maximum intensity of arrangement, increase the service life.
Soft raft structure of the present invention, during mattress sinking construction, first the arrangement winding up presetting tether and permeable opening and block cloth is arranged on the spool on Working Ships, then tether is leaned on to be fastened by concrete block by arrangement one end pull-out spool and in concrete block position, arrangement pull-out end is fixed on riverbank, then Working Ships is started gradually toward moving away from direction, riverbank, making arranges in Working Ships moving process be drawn out gradually and pull-out arrangement on fix concrete block after make it put into the water surface, then concrete block sink under gravity is arranged in, and make the water body of arrangement below by permeable opening gushing keep arrangement to be vertically settled down to the bottom, arrangement is blocked when Working Ships moves to soft raft outer end predeterminated position, complete mattress sinking construction.
In addition, when specifically implementing, above-mentioned soft raft structure, can also do following optimization further, arranges some along side directions and mutually circular cloth cylinders of continuous print, be filled with river sand in circular cloth cylinder in position, described arrangement both sides of the edge.Like this, when mattress sinking, circular cloth cylinder can prevent arrangement edge from because of unbalance stress, turnup phenomenon occurring by during water impact better, reduces the phenomenons such as volume row and marginal laceration simultaneously, improves mattress sinking implantation accuracy.During simultaneously mattress sinking, contacting of circular cloth cylinder and turnover panel and turnover panel both sides limit sliding chutes is all lines and the contacting of face, and frictional resistance is little, drastically increases mattress sinking smooth degree.In addition after mattress sinking, because cloth cylinder is circular, the overlap joint of marginal position between arranged adjacent can be made reliably convenient, be more prone to form overlap joint and can not lap gap be left, good to arranged adjacent marginal position protected effect; Because arrangement is for geotextiles, the river sand in circular cloth cylinder can be protected can not to be through arrangement and to wash away, therefore generally speaking greatly extend soft raft application life.Meanwhile, such scheme adopts river sand can fill with by on-the-spot dress when mattress sinking, also has handled easily and the cheaper feature of cost.
Further, described circular cloth cylinder is reserved a segment distance by position, both sides of the edge of arranging and is sewed up after backrush and obtains, and the diameter of circular cloth cylinder is 30cm, and each circular cloth cylinder is provided with the opening that can sew up.Like this, convenient site operation, meanwhile, the diameter of circular cloth cylinder is about 30cm, can ensure that circular cloth wound packages is filled with river sand and had enough weight, to ensure stablizing effect when arranging edge mattress sinking.River sand filled with by the openings civilian dress arranged, and river sand scene dress is sewed up after filling with.
Claims (5)
1. a permeable geotechnique soft raft structure, comprise be positioned at below arrangement and uniform array be arranged at arrangement upper surface concrete block, it is characterized in that, the described arrangement interstitial site be sunken in undersurface part between concrete block is also provided with some permeable openings, the arrangement that permeable opening faces limit meets water direction is fixedly installed block cloth, covers described permeable opening when block cloth falls.
2. permeable geotechnique soft raft structure as claimed in claim 1, is characterized in that, described permeable opening by two intersect ends and not cracking and form on the same line.
3. permeable geotechnique soft raft structure as claimed in claim 2, is characterized in that, described permeable opening is by cracking of arranging of a Parallel to the flow direction and be connected to this crack one end, downstream cracking of extending in the middle part of Vertical dimension riverbed and form; Rectangular and the block cloth of described block cloth self and arrangement two sew up line and two and crack and just form rectangles, and the loose corner parts of block cloth covers described two and cracks.
4. permeable geotechnique soft raft structure as claimed in claim 1, it is characterized in that, in described arrangement, corresponding each concrete block position correspondence is fixedly installed two pairs of tethers, and described concrete block two ends are symmetrically arranged with two circle grooves and are fixed in arrangement by tether at groove.
5. permeable geotechnique soft raft structure as claimed in claim 1, it is characterized in that, permeable opening entirety is arranged in row's shape, often arranges permeable opening offset and arranges and make spacing between the permeable opening of arbitrary neighborhood equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807386.7A CN104612106B (en) | 2014-12-23 | 2014-12-23 | A kind of permeable geotechnique soft raft structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807386.7A CN104612106B (en) | 2014-12-23 | 2014-12-23 | A kind of permeable geotechnique soft raft structure |
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| CN104612106A CN104612106A (en) | 2015-05-13 |
| CN104612106B true CN104612106B (en) | 2016-03-30 |
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| CN201410807386.7A Expired - Fee Related CN104612106B (en) | 2014-12-23 | 2014-12-23 | A kind of permeable geotechnique soft raft structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846780A (en) * | 2015-05-22 | 2015-08-19 | 南京长江河道工程建设处 | Concrete block tied soft geogrid mattress |
| CN106337395A (en) * | 2016-10-12 | 2017-01-18 | 珠江水利委员会珠江水利科学研究院 | Concrete hinge soft-body mattress structure used for underwater anti-scouring protective projects |
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|---|---|---|---|---|
| US5484230A (en) * | 1994-07-08 | 1996-01-16 | Rudloff; Terry R. | Concrete block revetment system for soil erosion prevention |
| CN2605301Y (en) * | 2003-03-27 | 2004-03-03 | 上海航道勘察设计研究院 | Concrete interlocked block soft configuration |
| 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 |
| CN2863884Y (en) * | 2005-12-16 | 2007-01-31 | 武汉绿洲凝石工程有限责任公司 | Thread connecting precast block soft row |
| CN202152454U (en) * | 2011-07-12 | 2012-02-29 | 同济大学 | Mold bag row curtain with functions of flow regulation and sand permeation |
| CN202745013U (en) * | 2012-08-02 | 2013-02-20 | 许建军 | Concrete body interlocking block soft mattress |
| KR20130073120A (en) * | 2011-12-23 | 2013-07-03 | 현대중공업 주식회사 | Lift frame for installation in a concrete mattress |
| CN203654231U (en) * | 2013-12-06 | 2014-06-18 | 长江航道规划设计研究院 | Soft raft with concrete water-pervious components |
-
2014
- 2014-12-23 CN CN201410807386.7A patent/CN104612106B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5484230A (en) * | 1994-07-08 | 1996-01-16 | Rudloff; Terry R. | Concrete block revetment system for soil erosion prevention |
| CN2605301Y (en) * | 2003-03-27 | 2004-03-03 | 上海航道勘察设计研究院 | Concrete interlocked block soft configuration |
| 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 |
| CN2863884Y (en) * | 2005-12-16 | 2007-01-31 | 武汉绿洲凝石工程有限责任公司 | Thread connecting precast block soft row |
| CN202152454U (en) * | 2011-07-12 | 2012-02-29 | 同济大学 | Mold bag row curtain with functions of flow regulation and sand permeation |
| KR20130073120A (en) * | 2011-12-23 | 2013-07-03 | 현대중공업 주식회사 | Lift frame for installation in a concrete mattress |
| CN202745013U (en) * | 2012-08-02 | 2013-02-20 | 许建军 | Concrete body interlocking block soft mattress |
| CN203654231U (en) * | 2013-12-06 | 2014-06-18 | 长江航道规划设计研究院 | Soft raft with concrete water-pervious components |
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Inventor after: Fu Xuhui Inventor after: Xiao Yi Inventor after: Liu Haiting Inventor after: Liu Xiayi Inventor after: Gong Mingzheng Inventor after: Luo Hong Inventor after: Yang Shengfa Inventor after: Hu Jiang Inventor after: Hu Weicai Inventor after: Li Wenjie Inventor after: Li Dehua Inventor after: Liu Changquan Inventor after: Ma Wenjie Inventor before: Fu Xuhui Inventor before: Xu Xu Inventor before: Gong Mingzheng Inventor before: Luo Hong Inventor before: Yang Shengfa Inventor before: Liu Haiting Inventor before: Liu Xiayi Inventor before: Hu Jiang Inventor before: Li Wenjie Inventor before: Chen Yang Inventor before: Xiao Yi |
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Effective date of registration: 20160229 Address after: 400074 Chongqing Nan'an District University Avenue, No. 66 Applicant after: CHONGQING JIAOTONG University Applicant after: CHANGJIANG CHONGQING WATERWAY ENGINEERING BUREAU Address before: 400074 Chongqing Nan'an District University Avenue, No. 66 Applicant before: chongqing jiaotong university |
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