CN106894384A - It is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion - Google Patents
It is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion Download PDFInfo
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- CN106894384A CN106894384A CN201710120732.8A CN201710120732A CN106894384A CN 106894384 A CN106894384 A CN 106894384A CN 201710120732 A CN201710120732 A CN 201710120732A CN 106894384 A CN106894384 A CN 106894384A
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- China
- Prior art keywords
- channel
- silt groove
- standby
- point bar
- accretion
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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
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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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
One kind the invention discloses river management technical field is in case silt groove prevention channel maintenance method of the point bar to channel accretion, is somebody's turn to do in case silt groove prevents point bar comprising the following steps that to the channel maintenance method of channel accretion：S1：Along direction along ng a path, standby silt groove is excavated using dredger at the point bar in navigation channel；S2：Using the cutting depth of the standby silt groove of water gauge control, it is ensured that the depth of standby silt groove safeguards depth more than the dredging in navigation channel；S3：Side slope to standby silt groove is constructed using ladder excavating load, it is ensured that the side slope of standby silt groove will not cave in when by current scour；S4：To navigation channel using the dredging method for being segmented slitting, by the mud cleaning between main channel and standby silt groove, standby silt groove is set by the point bar in navigation channel in the present invention, the drift on point bar can be effectively prevented to be extruded into navigation channel and to navigation channel, navigation channel size is caused constantly to reduce, the dredging efficiency in navigation channel can be improved, the dredging cost in navigation channel is reduced.
Description
Technical field
It is specially a kind of in case silt groove prevents navigation channel of the point bar to channel accretion the present invention relates to river management technical field
Maintaining method.
Background technology
With the sustained and rapid development of Chinese national economy, the freight volume of goods by inland river is continuously increased.To adapt to economic hair
The need for exhibition, China is just increasing the investment to River Channel infrastructure year by year, wherein in channel maintenance Dredging Process, a lot
Shoal of the alluvial in navigation channel outside navigation channel, when depositing larger, just occurs channel accretion to being extruded in boat groove
Speed exceedes dredging speed, is limited by Channel Navigation Condition, is often difficult to increase dredging vessel in navigation channel or changes dredging capacity
Bigger dredging vessel, causes channel accretion to continue to develop, and maintenance dimension of channel is difficult to ensure that.Especially current China's water and soil stream
The ratio of mistake is serious, and the Sediment Siltation speed in rivers is fast, according to conventional waterway dredging construction work, the alluvial in many navigation channels
Speed more than dredging speed, it is therefore desirable to design a kind of new maintaining method be widely used in point bar alluvial navigation channel maintenance apply
Work, in the case where Navigation in Navigable is ensured, to prevent extruding of the navigation channel point bar to navigation channel, boat is improved with reference to being dredged in navigation channel
The dredging efficiency in road, it is ensured that the navigable dimensions in navigation channel, therefore, we have proposed a kind of in case silt groove prevents point bar to channel accretion
Channel maintenance method come into operation, to solve the above problems.
The content of the invention
It is an object of the invention to provide it is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, with solve
The problem proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：One kind is in case silt groove prevents point bar to channel accretion
Channel maintenance method, should be in case silt groove prevents point bar from being comprised the following steps that to the channel maintenance method of channel accretion：
S1：Along direction along ng a path, standby silt groove is excavated using dredger at the point bar in navigation channel；
S2：Using the cutting depth of the standby silt groove of water gauge control, it is ensured that the depth of standby silt groove safeguards deep more than the dredging in navigation channel
Degree；
S3：Side slope to standby silt groove is constructed using ladder excavating load, it is ensured that the side slope of standby silt groove is when by current scour
Will not cave in；
S4：To navigation channel using the dredging method of segmentation slitting, the mud between main channel and standby silt groove is cleared up.
Preferably, in the step S1, the width of standby silt groove is directly proportional to the width in navigation channel, and dredger is using with certainly
Boat, the drag suction dredger from digging and self-unloading function.
Preferably, in the step S2, according to the local tide table of construction, the operating schedule of construction team is determined,
In water gauge installation process, it is ensured that the zero point of water gauge and local depth datum are consistent.
Preferably, in the step S3, in ladder excavating load, excavate stepped section in echelon using dredger and approximately reach
To the gradient, and including excavating rectangular section, side slope surface collapses to form the excavation method of natural angle of repose.
Preferably, in the step S4, in slitting work progress is segmented, the weight of lap width 50m between each section
Close region, it is to avoid the wrong phenomenon dug and leak and dig occur.
Compared with prior art, the beneficial effects of the invention are as follows：Standby silt groove is set by the point bar in navigation channel in the present invention,
Can effectively prevent the drift on point bar from being extruded into navigation channel and to navigation channel, cause navigation channel size constantly to reduce, energy
The dredging efficiency in navigation channel is enough improved, the dredging cost in navigation channel is reduced.
Brief description of the drawings
Fig. 1 is workflow diagram of the present invention；
Fig. 2 is that navigation channel construction area of the present invention divides plan.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：It is a kind of in case silt groove prevents navigation channel of the point bar to channel accretion
Maintaining method, should be in case silt groove prevents point bar comprising the following steps that to the channel maintenance method of channel accretion：
S1：Along direction along ng a path, standby silt groove, width and the navigation channel of standby silt groove are excavated using dredger at the point bar in navigation channel
Width is directly proportional, and dredger is used and had from boat, the drag suction dredger from digging and self-unloading function；
S2：Using the cutting depth of the standby silt groove of water gauge control, it is ensured that the depth of standby silt groove safeguards deep more than the dredging in navigation channel
Degree, according to the local tide table of construction, determines the operating schedule of construction team, in water gauge installation process, it is ensured that water gauge
Zero point and local depth datum are consistent；
S3：Side slope to standby silt groove is constructed using ladder excavating load, it is ensured that the side slope of standby silt groove is when by current scour
Will not cave in, in ladder excavating load, excavate stepped section in echelon using dredger and reach approximately the gradient, and including excavating into
Rectangular cross section, side slope surface collapses to form the excavation method of natural angle of repose；
S4：To navigation channel using the dredging method of segmentation slitting, the mud cleaning between main channel and standby silt groove is being segmented
In slitting work progress, the overlapping region of lap width 50m between each section, it is to avoid the wrong phenomenon for digging leakage digging occur.
Fig. 2 is referred to, when segmentation slitting construction is carried out to main channel, the navigation channel in region is divided into 6 sections, A dredgers
It is responsible for the construction to port position and berth, its quantities is about 14.6m3, B dredgers to navigation channel (B areas, 5.5km long) construct, its
Quantities is about 95m3, C dredgers are constructed to navigation channel (C areas, 7.3km long), and its quantities is about 110m3, D ships are to boat
Road D areas carry out construction and are responsible for, and the length in D areas is 7.4km, and corresponding quantities is 113m3, the maintenance dredging region in navigation channel point
Bar width is 30m, and the wrong phenomenon dug is dug in order to avoid there is leakage, and the lap width between being segmented at each section is defined as 50m, often
Lap width between one slitting is 5m.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, it is characterised in that：Should be in case silt groove be prevented
Point bar is comprised the following steps that to the channel maintenance method of channel accretion：
S1：Along direction along ng a path, standby silt groove is excavated using dredger at the point bar in navigation channel；
S2：Using the cutting depth of the standby silt groove of water gauge control, it is ensured that the depth of standby silt groove safeguards depth more than the dredging in navigation channel；
S3：Side slope to standby silt groove is constructed using ladder excavating load, it is ensured that the side slope of standby silt groove will not when by current scour
Cave in；
S4：To navigation channel using the dredging method of segmentation slitting, the mud between main channel and standby silt groove is cleared up.
2. according to claim 1 a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, its feature
It is：In the step S1, the width of standby silt groove is directly proportional to the width in navigation channel, and dredger using have from boat, from digging and
The drag suction dredger of self-unloading function.
3. according to claim 1 a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, its feature
It is：In the step S2, according to the local tide table of construction, the operating schedule of construction team is determined, installed in water gauge
Cheng Zhong, it is ensured that the zero point of water gauge and local depth datum are consistent.
4. according to claim 1 a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, its feature
It is：In the step S3, in ladder excavating load, excavate stepped section in echelon using dredger and reach approximately the gradient, and
Including excavating rectangular section, side slope surface collapses to form the excavation method of natural angle of repose.
5. according to claim 1 a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion, its feature
It is：In the step S4, in slitting work progress is segmented, the overlapping region of lap width 50m between each section, it is to avoid
There is the wrong phenomenon for digging leakage digging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120732.8A CN106894384A (en) | 2017-03-02 | 2017-03-02 | It is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120732.8A CN106894384A (en) | 2017-03-02 | 2017-03-02 | It is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion |
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| CN106894384A true CN106894384A (en) | 2017-06-27 |
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| CN201710120732.8A Pending CN106894384A (en) | 2017-03-02 | 2017-03-02 | It is a kind of in case silt groove prevent channel maintenance method of the point bar to channel accretion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962513A (en) * | 2021-01-25 | 2021-06-15 | 中铁五局集团第四工程有限责任公司 | River channel dredging method |
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| KR101229009B1 (en) * | 2011-06-16 | 2013-02-04 | 한국건설기술연구원 | Grade-control Structure for Natural Bed-wave Movement and Ecological Corridor |
| KR101280330B1 (en) * | 2011-08-12 | 2013-07-01 | 이윤철 | The basis block for prevention digging |
| CN103898866A (en) * | 2014-03-13 | 2014-07-02 | 重庆交通大学 | Method for regulating straight channel of sand cobble bifurcated shoal of transition section |
| CN105421287A (en) * | 2015-10-28 | 2016-03-23 | 南京大学 | River ecological restoration technology combining multiple forms |
| CN105442490A (en) * | 2015-11-12 | 2016-03-30 | 长江南京航道工程局 | Channel maintenance method capable of preventing marginal bank from silting towards channel through silt storage groove |
| CN106320261A (en) * | 2016-08-22 | 2017-01-11 | 中交天航港湾建设工程有限公司 | Ultra-long harbor basin slope excavation construction method |
-
2017
- 2017-03-02 CN CN201710120732.8A patent/CN106894384A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101229009B1 (en) * | 2011-06-16 | 2013-02-04 | 한국건설기술연구원 | Grade-control Structure for Natural Bed-wave Movement and Ecological Corridor |
| KR101280330B1 (en) * | 2011-08-12 | 2013-07-01 | 이윤철 | The basis block for prevention digging |
| CN103898866A (en) * | 2014-03-13 | 2014-07-02 | 重庆交通大学 | Method for regulating straight channel of sand cobble bifurcated shoal of transition section |
| CN105421287A (en) * | 2015-10-28 | 2016-03-23 | 南京大学 | River ecological restoration technology combining multiple forms |
| CN105442490A (en) * | 2015-11-12 | 2016-03-30 | 长江南京航道工程局 | Channel maintenance method capable of preventing marginal bank from silting towards channel through silt storage groove |
| CN106320261A (en) * | 2016-08-22 | 2017-01-11 | 中交天航港湾建设工程有限公司 | Ultra-long harbor basin slope excavation construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962513A (en) * | 2021-01-25 | 2021-06-15 | 中铁五局集团第四工程有限责任公司 | River channel dredging method |
| CN112962513B (en) * | 2021-01-25 | 2023-02-28 | 中铁五局集团第四工程有限责任公司 | River channel dredging method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |