CN105442492A - Mountain river dike anti-scouring revetment and installation method - Google Patents

Mountain river dike anti-scouring revetment and installation method Download PDF

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Publication number
CN105442492A
CN105442492A CN201510800373.1A CN201510800373A CN105442492A CN 105442492 A CN105442492 A CN 105442492A CN 201510800373 A CN201510800373 A CN 201510800373A CN 105442492 A CN105442492 A CN 105442492A
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China
Prior art keywords
stream
shore protection
plate
choosing
protection unit
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CN201510800373.1A
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CN105442492B (en
Inventor
晏成明
陈红
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GUANGDONG WATER RESOURCES AND ELECTRIC POWER VOCATIONAL TECHNOLOGY INSTITUTE
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GUANGDONG WATER RESOURCES AND ELECTRIC POWER VOCATIONAL TECHNOLOGY INSTITUTE
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Priority to CN201510800373.1A priority Critical patent/CN105442492B/en
Publication of CN105442492A publication Critical patent/CN105442492A/en
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Publication of CN105442492B publication Critical patent/CN105442492B/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor

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  • 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 discloses a mountain river dike anti-scouring revetment and an installation method. The mountain river dike anti-scouring revetment comprises a plurality of mutually connected revetment units. Each revetment unit comprises a connecting pillar, a flow deflecting plate and a stabilization pillar, wherein the flow deflecting plate is in a streamline shape; the connecting pillar is connected with the bottom end of the flow deflecting plate and integrally formed; the stabilization pillar is connected with the flow deflecting plate and supports the flow deflecting plate. The stabilization pillars of the revetment units on the upper stream are connected with the connecting pillars of the revetment units on the lower stream in a sleeving mode. According to the mountain river dike anti-scouring revetment and the installation method, a continuous flow deflecting design is adopted, the direction of water flow near a slope is changed, the water flow joins and mixes with the water flow not affected by flow deflecting, and the kinetic energy is consumed. On the one hand, the direction of the water flow is changed, and direct scouring towards the slope is reduced. On the other hand, the kinetic energy of the water flow near the slope is reduced, so that the stability of the revetment structure is guaranteed. According to the revetment, the slope surface of a dike is not solidified, the soil of the slope surface makes full contact with water, material interaction is guaranteed, and the ecologic system near the slope is maintained.

Description

Mountain stream dyke anti-impact shore protection and mounting method
Technical field
The present invention relates to a kind of mountain stream dyke anti-impact shore protection and mounting method, belong to hydraulic engineering field.
Background technology
Current mountain stream shore protection generally adopts jackstone, cemented rock shore protection, and because jackstone, cemented rock shore protection globality are poor, in riverbed with in current adjustment process, partial block stone easily scatters and disappears, and affects bank protection work stability, needs often to safeguard reinforcing.In addition on the one hand, jackstone, cemented rock shore protection have completely cut off the mass exchange between soil and water body, destroy the ecosystem near bank slope; Along with human ecology consciousness strengthens, recognize that river regulation is except meeting flood control safety, also should take into account ecological environment gradually, thus, ecological revetment arises at the historic moment.It is several that current ecological revetment pattern both at home and abroad mainly contains compound grass planting bank protection, precast hollow block bank protection, radial type slope-protection block, cobble basket structure, prefabricated spherical eco-concrete bank protection, concrete grid grass planting bank protection, jackstone+grass planting bank protection etc.For mountain stream, above-mentioned shore protection pattern erosion-resisting characteristics is poor, is difficult to phase high speed water flow impact of keeping the flood in check, causes dyke to destroy, bring greater loss to people's lives and properties, is badly in need of a kind of effectively anti-impact shore protection pattern, and takes into account ecology.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art; the invention provides a kind of mountain stream dyke anti-impact shore protection and mounting method; stream design is chosen continuously by adopting; change flow direction near side slope; make it impact not chosen stream to affect current, produce cross, blending consumes kinetic energy, change flow direction on the one hand and reduce directly washing away side slope; reduce water flow dynamic energy near side slope on the one hand in addition, thus guarantee the stable of bank protection structure.
Technical scheme: for solving the problems of the technologies described above, mountain stream dyke anti-impact shore protection of the present invention, comprise some groups of interconnective shore protection unit, described shore protection unit comprises connection post, chooses stream plate and stability column, described choose stream plate be streamlined, described connection post with choose the bottom of flowing plate and be connected, described stability column flows plate and is connected and supports and choose stream plate, the stability column of upstream shore protection unit and the mutual noose of connection post of downstream shore protection unit with choosing.
As preferably, described connection post and stability column are positioned at same vertical plane.
As preferably, described connection post head is " recessed " shape, and stability column afterbody is " convex " shape, and stability column afterbody inserts in connection post head, and square opening is opened at center, and adopts lock pin consolidation.
As preferably, the connection post in each shore protection unit, choose stream plate and stability column is overall by concrete prefabricated.
As preferably, described connection column length is L 1, choosing stream plate, to choose stream angle θ scope be 5 ~ 25 °, and choosing the length that stream plate plate projects in the horizontal plane is L 2, wherein L 2equal 1.0-2.5 times of L 1length, current and bank slope angle larger, choose stream angle θ less, current after choosing stream plate water conservancy diversion, L 2length ensure that current directly fall into next block and choose stream plate, realizes choosing stream continuously.
The mounting method of above-mentioned mountain stream dyke anti-impact shore protection, comprises the following steps:
1) concrete is adopted to process connection post in shore protection unit in integral prefabricated mode, choose stream plate;
2) between lowstand period, by shore protection shipped to place to be installed;
3) first install downstream shore protection unit, then install upstream shore protection unit, the stability column of upstream shore protection unit inserts downstream shore protection unit connection post and uses lock pin consolidation;
4) connect plane and bank slope planes align on post, bottom is embedded in bank slope;
5) connecting intercolumniation and choosing the vacant ground plantation vegetation such as stream plate bottom, prevent erosion;
6) in like manner, according to above-mentioned steps 3) to 5) complete installation successively.
As preferably, described step 1) in, to process connection post in shore protection unit in integral prefabricated mode adopting concrete, when choosing stream plate and stability column, comprising the following steps:
1. according to model testing determination parameter θ, L 1and L 2, evaluation criterion chooses stream continuously for whether being formed, through choose stream plate choose stream effect after current be back to when stream plate is chosen in downstream and be considered as choosing continuously stream; Wherein, θ chooses stream angle, L for choosing stream plate 2for choosing the length that stream plate projects in the horizontal plane, L 1for connection column length;
2. according to θ and L 2determine to choose stream board parameter, choosing stream plate is the shape and size that 1/4 ellipse is corresponding, transverse a=2*L 2, ellipse short shaft b=2*L 2* tan θ;
3. according to parameter θ, L 1, L 2, a and b, adopt concrete to process connection post in shore protection unit in integral prefabricated mode, choose stream plate and stability column.
In the present invention, stability column one end is connected with Tiao Liuban center, and one end is flowed plate projection in the horizontal plane at the intersection point of horizontal plane and overlapped with choosing in addition.According to model testing determination parameter θ, L 1and L 2concrete grammar be: 1) adopt model testing, with the present invention of dyke modeling the prototype the side slope ot the embankment that is suitable for, wherein horizontal guide is identical with vertical scale, and guide scope is 2 ~ 6; 2) measure flow direction near side slope, obtain itself and side slope angle α; 3), under original state, if α is greater than 25 °, then θ is set as 25 °, otherwise θ is set as α, L 1be set as 1m (so that transport and installation), L 2for 1.2m, make the bank protection structure model corresponding to mountain stream dyke anti-impact shore protection of the present invention according to guide; 4) bank protection structure model is arranged in dyke model, flow rate of water flow near the side slope of Measurement sensibility post downstream, this flow velocity increases gradually along downstream direction and finally tends towards stability, the Peak Flow Rate point occurred first is considered as again being back to side slope by the current after choosing stream effect, is L along side slope distance between this point and stability column 3, as shown in Figure 3, dotted portion is L 3length range; 5) if L 3be greater than L 1, then bank protection structure is reasonable, otherwise increases L 2, repeat step 4), to L 3be greater than L 1, then θ, L is determined 1and L 2parameter.
Beneficial effect: mountain stream dyke anti-impact shore protection of the present invention and mounting method thereof, stream design is chosen continuously by adopting, current choose stream plate to next block choosing first motion under stream plate guide functions, choose the current after stream and do not chosen stream effect current and cross in this process, mutual blending, consume water flow dynamic energy, choosing stream formation recirculating zone, plate bottom, flow velocity significantly reduces simultaneously, thus is conducive to safeguarding the vacant ground vegetation of connection post, prevent erosion, realize side slope protection.The present invention improves bank protection structure stability, and not solidify dyke domatic for this shore protection pattern simultaneously, allows Soil Slope fully contact with current, guarantees that the material between domatic and water body is mutual, maintains the ecosystem near bank slope.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of shore protection unit in Fig. 1;
Fig. 3 is the schematic diagram of shore protection unit in Fig. 1;
Fig. 4 is connection post and the structural representation choosing stream plate;
Fig. 5 is for choosing stream board parameter determination principle schematic;
Fig. 6 is section of levee figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1 to Figure 3, mountain stream dyke anti-impact shore protection of the present invention, comprise some groups of interconnective shore protection unit, described shore protection unit comprises connection post 1, chooses stream plate 2 and stability column 3, described stream plate 2 of choosing is for streamlined, and preferably choosing stream plate 2 is 15 degree with horizontal sextant angle, described connection post 1 with choose the bottom of flowing plate 2 and be connected, described stability column 3 flows plate 2 and is connected and supports to choose and flow plate 2 with choosing, and the stability column 3 of previous shore protection unit is connected with the connection post 1 of a rear shore protection unit; Described connection post 1 and stability column 3 are positioned at same vertical plane, connection post 1 head is " recessed " shape, stability column 3 afterbody is " convex " shape, stability column 3 afterbody inserts in connection post 1 head, be equipped with square opening at connection post 1 head and stability column 3 afterbody, in square opening, insert lock pin fixed connection post 1 and stability column 3.Connection post 1 in each shore protection unit, choose stream plate 2 and stability column 3 entirety by concrete prefabricated.As shown in Figure 4, connecting post 1 length is L 1, choosing stream plate 2, to choose stream angle θ scope be 5 ~ 25 °, and choosing the length that stream plate 2 projects in the horizontal plane is L 2, L 2equal 1.0-2.5 times of L 1length.Wherein, the stream angle θ that chooses choosing stream plate 2 chooses the angle that stream plate 2 chooses line between flow endpoint to starting point and horizontal plane, as shown in Figure 4.
Bank protection structure in use, is arranged on current and the side slope ot the embankment interface by the present invention, and Fig. 6 is section of levee figure.Use mould by connection post 1, choose and flow plate 2 and stability column 3 entirety by concrete prefabricated, each shore protection unit is transported to limit, river course, during installation, only can use one deck shore protection unit, also can multilayer be set, only need connection post 1 head of downstream shore protection unit to be inserted in stability column 3 afterbody of upstream shore protection unit, easy for installation, efficiency is high.
The mounting method of mountain stream dyke anti-impact shore protection of the present invention, comprises the following steps:
1) adopt concrete to process connection post 1 in shore protection unit in integral prefabricated mode, choose stream plate 2 and stability column 3, such as L 1prefabricated 1 meter of length, L 2prefabricated 2 meters of length, prefabricated 1.5 meters of width;
2) between lowstand period, by shore protection shipped to place to be installed;
3) first install downstream shore protection unit, then install upstream shore protection unit, the stability column 3 of upstream shore protection unit inserts downstream shore protection unit connection post 1 and uses lock pin consolidation;
4) connect plane and bank slope planes align on post 1, bottom is embedded in bank slope;
5) connecting post 1 and choosing the vacant ground plantation vegetation such as stream plate 2 bottom, prevent erosion;
6) in like manner, according to above-mentioned steps 3) to 5) complete installation successively.
In the present embodiment, to process connection post 1 in shore protection unit in integral prefabricated mode adopting concrete, when choosing stream plate 2 and stability column 3, as shown in Figure 5, comprising the following steps: 1. according to model testing determination parameter θ, L 1and L 2, evaluation criterion chooses stream continuously for whether being formed, through choose stream plate choose stream effect after current be back to when stream plate is chosen in downstream and be considered as choosing continuously stream; 2. according to θ and L 2determine to choose stream plate 2 parameter, choosing stream plate 2 is the shape and size that 1/4 ellipse is corresponding, transverse a=2*L 2, ellipse short shaft b=2*L 2* tan θ; 3. according to parameter θ, L 1, L 2, a and b, adopt concrete to process connection post 1 in shore protection unit in integral prefabricated mode, choose stream plate 2 and stability column 3.
Between flood period, river level rises suddenly and sharply, flow velocity is larger, current choose stream plate 2 choosing first motion to next block under stream plate 2 guide functions, choose the current after stream in this process and do not chosen stream effect current and cross, mutual blending, consumes water flow dynamic energy, is choosing stream formation recirculating zone, plate 2 bottom simultaneously, flow velocity significantly reduces, thus be conducive to safeguarding the vacant ground vegetation of connection post 1, prevent erosion, realize side slope protection.This structure makes Soil Slope fully contact with current simultaneously, guarantees that its mutual material is mutual, maintains the ecosystem near bank slope.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. mountain stream dyke anti-impact shore protection, it is characterized in that: comprise some groups of interconnective shore protection unit, described shore protection unit comprises connection post, chooses stream plate and stability column, described choose stream plate be streamlined, connection post with choose the bottom of flowing plate and be connected, stability column flows plate and is connected and supports and choose stream plate, the stability column of upstream shore protection unit and the mutual noose of connection post of downstream shore protection unit with choosing.
2. mountain stream dyke anti-impact shore protection according to claim 1, is characterized in that: described connection post and stability column are positioned at same vertical plane.
3. mountain stream dyke anti-impact shore protection according to claim 2, is characterized in that: described connection post head is " recessed " shape, and stability column afterbody is " convex " shape, and stability column afterbody inserts connection post head and adopts lock pin consolidation.
4. mountain stream dyke anti-impact shore protection according to claim 3, is characterized in that: described connection column length is L 1, choosing stream plate, to choose stream angle θ scope be 5 ~ 25 °, and choosing the length that stream plate projects in the horizontal plane is L 2, wherein L 2equal 1.0-2.5 times of L 1length.
5. a mounting method for mountain stream dyke anti-impact shore protection according to claim 4, is characterized in that, comprise the following steps:
1) adopt concrete to process connection post in shore protection unit in integral prefabricated mode, choose stream plate and stability column;
2) between lowstand period, by shore protection shipped to place to be installed;
3) first install downstream shore protection unit, then install upstream shore protection unit, upstream shore protection unit stability column inserts downstream shore protection unit connection post and uses lock pin consolidation;
4) connect plane and bank slope planes align on post, bottom is embedded in bank slope;
5) connecting intercolumniation and choosing the vacant ground plantation in stream plate bottom vegetation, prevent erosion;
6) in like manner, according to above-mentioned steps 3) to 5) complete installation successively.
6. the mounting method of mountain stream dyke anti-impact shore protection according to claim 5, it is characterized in that: described step 1) in, to process connection post in shore protection unit in integral prefabricated mode adopting concrete, when choosing stream plate and stability column, comprising the following steps:
1. according to model testing determination parameter θ, L 1and L 2, evaluation criterion chooses stream continuously for whether being formed, through choose stream plate choose stream effect after current be back to when stream plate is chosen in downstream and be considered as choosing continuously stream; Wherein, θ chooses stream angle, L for choosing stream plate 2for choosing the length that stream plate projects in the horizontal plane, L 1for connection column length;
2. according to θ and L 2determine to choose stream board parameter, choosing stream plate is the shape and size that 1/4 ellipse is corresponding, transverse a=2*L 2, ellipse short shaft b=2*L 2* tan θ;
3. according to parameter θ, L 1, L 2, a and b, adopt concrete to process connection post in shore protection unit in integral prefabricated mode, choose stream plate and stability column.
CN201510800373.1A 2015-11-19 2015-11-19 Mountain stream dyke anti-impact shore protection and installation method Expired - Fee Related CN105442492B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753775B1 (en) * 2006-12-29 2007-08-30 임국진 Slope protection block with environmental conformity for vegetation
CN203334244U (en) * 2013-07-04 2013-12-11 江阴市水利工程公司 Ecological protecting slope with high wind wave resisting ability
CN204690679U (en) * 2015-05-10 2015-10-07 吴聪辉 Buffering reverse-flow type bank protection on a kind of power station
CN204753496U (en) * 2015-05-11 2015-11-11 浙江水利水电学院 River dyke hyperbolic cambered surface safety bank slope
CN205116091U (en) * 2015-11-19 2016-03-30 广东水利电力职业技术学院 Mountain stream dyke resists towards shore protection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753775B1 (en) * 2006-12-29 2007-08-30 임국진 Slope protection block with environmental conformity for vegetation
CN203334244U (en) * 2013-07-04 2013-12-11 江阴市水利工程公司 Ecological protecting slope with high wind wave resisting ability
CN204690679U (en) * 2015-05-10 2015-10-07 吴聪辉 Buffering reverse-flow type bank protection on a kind of power station
CN204753496U (en) * 2015-05-11 2015-11-11 浙江水利水电学院 River dyke hyperbolic cambered surface safety bank slope
CN205116091U (en) * 2015-11-19 2016-03-30 广东水利电力职业技术学院 Mountain stream dyke resists towards shore protection

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