CN111622172B - Flood control and silt prevention method for large music fountain in natural river basin - Google Patents

Flood control and silt prevention method for large music fountain in natural river basin Download PDF

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Publication number
CN111622172B
CN111622172B CN202010330402.3A CN202010330402A CN111622172B CN 111622172 B CN111622172 B CN 111622172B CN 202010330402 A CN202010330402 A CN 202010330402A CN 111622172 B CN111622172 B CN 111622172B
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China
Prior art keywords
river
bank
guide wall
silt
concave
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CN111622172A (en
Inventor
朱峰峰
肖玉锋
董万龙
袁豪
贾涛
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China Construction Third Bureau Group Co Ltd
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China Construction Third Bureau Construction Engineering Co Ltd
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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
    • E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • 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
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • 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
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • E02B3/106—Temporary dykes
    • E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand
    • 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
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/402—River restoration

Abstract

The invention discloses a flood control and silt prevention method for a large music fountain in a natural river basin, which comprises the following steps: reforming a river shoreline of the fountain area to form a convex bank and a concave bank which are adjacent, wherein the concave bank is positioned at the downstream of the convex bank, the convex bank is a bank which protrudes outwards in the direction close to the river, and the concave bank is a bank which is recessed inwards in the direction far away from the river; carrying out stone throwing and silt squeezing on the river bottom of the river region corresponding to the convex bank and the concave bank, namely paving silt squeezing stones; and constructing a guide wall in a river area corresponding to the convex bank, installing a floating raft for a large music fountain in a river area corresponding to the concave bank, and shielding the floating raft by the guide wall in the river direction. According to the invention, the river bank and the river bottom are reformed and the guide wall is built, so that the prevention capability is obviously improved in the aspects of flood control and silt prevention, and the large music fountain in the natural river basin can be protected to normally operate for a long time.

Description

Flood control and silt prevention method for large music fountain in natural river basin
Technical Field
The invention relates to a flood control and silt prevention method for a natural river basin, in particular to a flood control and silt prevention method for a large music fountain in a natural river basin.
Background
With the improvement of living standard, the large music fountain built in the natural river basin is more and more, and the later maintenance of the large music fountain has important significance for the long-term normal operation of the fountain.
However, the fountain of the natural water body is greatly influenced by the natural environment because the fountain is in the open natural environment, and upstream vegetation conditions, weather precipitation conditions and the like all affect the downstream. For example, fountain destruction caused by flotage mixed with flood water during flood period and silt deposition caused by silt in river water during dry period can both have serious influence on fountain equipment, and maintenance cost is obviously increased. Even the fountain can be destroyed by water under the condition of larger flood, which causes huge loss and potential safety hazard.
At present, the problems are generally overcome as much as possible by optimizing site selection, improving construction quality and the like, but the obvious defects still exist in flood period and dry period without obvious improvement effect.
Disclosure of Invention
The invention aims to solve the problems and provide a flood control and silt prevention method for a large music fountain in a natural river basin.
The invention realizes the purpose through the following technical scheme:
a flood control and silt prevention method for a large music fountain in a natural river basin comprises the following steps:
step 1, reforming a river shoreline of a fountain area to form a convex bank and a concave bank which are adjacent, wherein the concave bank is positioned at the downstream of the convex bank, the convex bank is a bank which is convex outward towards the direction close to the river, and the concave bank is a bank which is concave inwards towards the direction far away from the river;
step 2, carrying out stone throwing and silt squeezing on river bottoms of river areas corresponding to the convex bank and the concave bank, namely paving silt squeezing stones;
and 3, constructing a guide wall in a river area corresponding to the convex bank, installing a floating raft for the large-scale music fountain in the river area corresponding to the concave bank, and shielding the floating raft by the guide wall in the river direction.
Preferably, in the step 3, the dam body of the guide wall is built on the silt-squeezing stone head of the river bottom, reynolds protection pads are laid on the upstream slope surface, the downstream slope surface and the top of the dam body, and the floating raft is installed after the reynolds protection pads are laid on the silt-squeezing stones at the river bottom of the river region corresponding to the concave bank.
In step 3, the reynolds protection pad comprises a plurality of reynolds protection pad net cages, reynolds protection pad fillers are filled in the reynolds protection pad net cages, and two adjacent reynolds protection pad net cages are bound by galvanized lead wires.
Further, in the step 3, geotextiles are laid on the upstream slope surface and the downstream slope surface of the dam body of the guide wall firstly, hard objects with sharp edges on the slope surface are removed before the geotextiles are laid, the geotextiles are unfolded downwards in sequence from the top of the slope during the laying, the geotextiles on the slope feet of the top of the slope are fixed on the slope surface through U-shaped buckles, then Reynolds protection pads are installed on the geotextiles, and protection stones are piled on the slope feet of the upstream slope surface of the guide wall.
Preferably, the distance between the guide wall and the floating raft is 20-40 meters, the included angle between the guide wall and the river direction is 45-75 degrees, the width of the top of the guide wall is 6-10 meters, and the slope ratio of the upstream slope surface to the downstream slope surface of the guide wall is 1: 2.
more preferably, the distance between the guide wall and the floating raft is 30 meters, the included angle between the guide wall and the river direction is 60 degrees, and the width of the top of the guide wall is 8 meters.
Preferably, the diversion wall dam body is filled with shale.
The invention has the beneficial effects that:
according to the invention, the river bank and the river bottom are reformed and the guide wall is built, so that the prevention capability is obviously improved in the aspects of flood control and silt prevention, and the large music fountain in the natural river basin can be protected to normally operate for a long time.
The method has the following specific advantages: according to the water flow principle, a shore line is reformed, so that silt is accumulated in an upstream convex shore area, the fountain is floated and drained, equipment is located in a concave shore area where the silt is not easy to deposit, the influence of river water on the fountain is reduced by adopting a method for constructing a flow guide wall in the upstream convex shore area of the fountain, the flow guide wall constructed in a river can play a role of reducing the flood in advance, when water flows through the flow guide wall, the speed is further reduced, part of silt is rapidly deposited, and the deposition amount of the silt in the fountain area is reduced; adopt reynolds protection pad to reform transform riverbed, through throwing the crowded silt of stone and laying reynolds protection pad to the river bottom, make the riverbed bottom level and smooth, flowing water does not receive the resistance when passing through, and silt is difficult for silting up, and the riverbed of laying the reynolds protection pad is favorable to the cleaing away of siltation simultaneously to can not produce the fountain basis of river bottom when desilting and erode.
Drawings
Fig. 1 is a schematic view of a guide wall and a floating raft according to the flood control and silt prevention method for a large music fountain in a natural river basin;
fig. 2 is a schematic top view of a guide wall and a floating raft according to the method for flood control and silt prevention of a large music fountain in a natural river basin of the present invention, wherein the dimensional scale of the guide wall and the floating raft does not completely correspond to that of fig. 1, but only schematically shows the guide wall and the floating raft;
FIG. 3 is a schematic perspective view of a Reynolds protection pad according to the method for preventing flood and silt in a large music fountain in a natural river basin of the present invention;
fig. 4 is a schematic front view of a U-shaped buckle provided with a reynolds protection pad according to the flood control and silt prevention method for a large music fountain in a natural river basin of the present invention, wherein the scale of the U-shaped buckle is larger than that of fig. 3.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-4, the flood control and silt prevention method for the large music fountain in the natural river basin of the invention comprises the following steps:
step 1, as shown in fig. 2, a river shoreline of a fountain area is reformed to form a convex bank 8 and a concave bank 7 which are adjacent, the concave bank 7 is positioned at the downstream of the convex bank 8, the convex bank 8 is a bank which is convex towards the direction close to a river, and the concave bank 7 is a bank which is concave towards the direction far away from the river;
step 2, as shown in fig. 2, performing stone throwing and silt squeezing on river bottoms of river areas corresponding to the convex bank 8 and the concave bank 7, namely paving silt squeezing stones 5;
and 3, building a guide wall 3 in a river area corresponding to the convex bank 8, installing a floating row 6 for a large music fountain in the river area corresponding to the concave bank 7, and blocking the floating row 6 by the guide wall 3 in the river direction.
As shown in fig. 1-4, in the step 3, the dam 4 of the guide wall 3 is built on the silt-extruding stone 5 at the bottom of the river, and the reynolds protection pads 2 are laid on the upstream slope surface, the downstream slope surface and the top of the dam 4, the dam 4 is filled with shale, the filling sequence is that the dam is gradually filled from the river bank, the underwater filling adopts throwing filling, the water is treated by layered paving and rolling, and the dam 4 is subjected to upstream and downstream two-side slope brushing by an excavator in the construction process; a Reynolds protection pad 2 is laid on the silt squeezing stones 5 at the river bottom of the river region corresponding to the concave bank 7, and then a floating mat 6 is installed; the Reynolds protection pad 2 comprises a plurality of Reynolds protection pad net boxes 9, Reynolds protection pad fillers 12 are filled in the Reynolds protection pad net boxes 9, and the two adjacent Reynolds protection pad net boxes 9 are bound by galvanized lead wires 13; firstly laying geotextiles 11 on an upstream slope surface and a downstream slope surface of a dam body 4 of a guide wall 3, removing hard matters with sharp edges on the slope surfaces before laying, unfolding downwards in sequence from a slope top during laying, fixing the geotextiles 11 on slope feet of the slope top on the slope surfaces through U-shaped buckles 10, then mounting Reynolds protection pads 2 on the geotextiles, and piling protection stones 1 on the slope feet of the upstream slope surface of the guide wall 3; the distance between the guide wall 3 and the floating row 6 is 20-40 meters, preferably 30 meters, the included angle between the guide wall 3 and the river direction is 45-75 degrees, preferably 60 degrees, the width of the top of the guide wall 3 is 6-10 meters, preferably 8 meters, the slope ratio of the upstream slope surface to the downstream slope surface of the guide wall 3 is 1: 2.
the natural river basin large music fountain built according to the method and composed of the floating raft 6 and other equipment installed on the floating raft 6 can effectively prevent flood in a flood period and silt in a dry period, is simple in later maintenance and can normally operate for a long time.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.

Claims (7)

1. A flood control and silt prevention method for a large music fountain in a natural river basin is characterized by comprising the following steps: the method comprises the following steps:
step 1, reforming a river shoreline of a fountain area to form a convex bank and a concave bank which are adjacent, wherein the concave bank is positioned at the downstream of the convex bank, the convex bank is a bank which is convex outward towards the direction close to the river, and the concave bank is a bank which is concave inwards towards the direction far away from the river;
step 2, carrying out stone throwing and silt squeezing on river bottoms of river areas corresponding to the convex bank and the concave bank, namely paving silt squeezing stones;
and 3, constructing a guide wall in a river area corresponding to the convex bank, installing a floating raft for the large-scale music fountain in the river area corresponding to the concave bank, and shielding the floating raft by the guide wall in the river direction.
2. The method of claim 1, wherein the method comprises the steps of: and 3, building a dam body of the guide wall on the silt-squeezing stone head of the river bottom, laying Reynolds protection pads on the upstream slope surface, the downstream slope surface and the top of the dam body, laying the Reynolds protection pads on the silt-squeezing stones at the river bottom of the river region corresponding to the concave bank, and then installing the floating raft.
3. The flood control and silt prevention method for the large music fountain of the natural river basin according to claim 2, characterized in that: in the step 3, the Reynolds protection pad comprises a plurality of Reynolds protection pad net cages, Reynolds protection pad filling materials are filled in the Reynolds protection pad net cages, and two adjacent Reynolds protection pad net cages are bound by galvanized lead wires.
4. The flood control and silt prevention method for the large music fountain of the natural river basin according to claim 2, characterized in that: and 3, firstly paving geotextile on the upstream slope surface and the downstream slope surface of the dam body of the guide wall, removing hard objects with sharp edges on the slope surfaces before paving, unfolding downwards in sequence from the top of the slope during paving, fixing the geotextile on the slope surface at the slope foot of the top of the slope through a U-shaped buckle, then installing a Reynolds protection pad on the geotextile, and paving protection stones on the slope foot of the upstream slope surface of the guide wall.
5. The method for preventing flood and silt in a large music fountain of a natural river basin according to any one of claims 1 to 4, wherein: the distance between the guide wall and the floating raft is 20-40 meters, the included angle between the guide wall and the river direction is 45-75 degrees, the width of the top of the guide wall is 6-10 meters, and the slope ratio of the upstream slope surface to the downstream slope surface of the guide wall is 1: 2.
6. the method of claim 5, wherein the method comprises: the distance between the guide wall and the floating raft is 30 meters, the included angle between the guide wall and the river direction is 60 degrees, and the width of the top of the guide wall is 8 meters.
7. The method for preventing flood and silt in a large music fountain of a natural river basin according to any one of claims 1 to 4, wherein: and the diversion wall dam body is filled with shale.
CN202010330402.3A 2020-04-24 2020-04-24 Flood control and silt prevention method for large music fountain in natural river basin Active CN111622172B (en)

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CN202010330402.3A CN111622172B (en) 2020-04-24 2020-04-24 Flood control and silt prevention method for large music fountain in natural river basin

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CN111622172B true CN111622172B (en) 2022-04-26

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Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB207466A (en) * 1923-04-04 1923-11-29 Richard Hopwood Thornton Method for causing the current of a river to clear its own channel
CN104712010B (en) * 2015-03-25 2017-04-05 广东省水利水电科学研究院 A kind of anti-silting system of convex bank diversion

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