CN203876952U - Pontoon system for immersed pipes to pass through rivers - Google Patents
Pontoon system for immersed pipes to pass through rivers Download PDFInfo
- Publication number
- CN203876952U CN203876952U CN201420202185.XU CN201420202185U CN203876952U CN 203876952 U CN203876952 U CN 203876952U CN 201420202185 U CN201420202185 U CN 201420202185U CN 203876952 U CN203876952 U CN 203876952U
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- China
- Prior art keywords
- anchor point
- pontoon
- control line
- winch
- pontoon platform
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Abstract
The utility model discloses a pontoon system for immersed pipes to pass through rivers, and belongs to the technical field of underwater laid pipelines. A first control line and a second control line in the pontoon system disclosed by the utility model are both parallel to a pipe ditch, the first control line and the second control line are used for fixing a pontoon platform, a first hoister and a second hoister are fixedly connected to the pontoon platform, the first hoister is connected with a second anchor point through a steel wire rope of the first hoister, the second hoister is connected with a fourth anchor point through a steel wire rope of the second hoister, and the pontoon platform is driven to move back and forth on the water surface by controlling the first hoister and the second hoister to operate. An excavator is positioned on the pontoon platform, a pouring funnel is arranged on the pontoon platform, the vertical movement of the pouring funnel is controlled by a guide chain, the bottom part of the pouring funnel is positioned above the pipe ditch, and the pouring funnel is used for pouring concrete on a pipeline. Through the adoption of the pontoon system disclosed by the utility model, the pontoon platform can be conveniently controlled to move back and forth on the water surface, and the pouring funnel can be applied to the construction when concrete stabilized pipes are poured.
Description
Technical field
The utility model relates to tubing technical field under water, more particularly, relates to the pontoon system that a kind of immersed tube river crossing is used.
Background technology
In the work progress of natural gas pipeline projects, pipeline river crossing is " project of primary importance " in pipeline construction, and not only technical risk is high, and investment is many, and long in time limit, has a big risk.Pipeline river crossing is had relatively high expectations to the hydrogeological situation in river, and especially, for the river of following situation, difficulty of construction is larger: do not open the navigation or air flight in (1) river, two sides do not have highway, and riverbank is nature riverbank; (2) river is clipped between two mountains, and the two sides gradient is larger, and the limit of pulling in to shore, riverbed is rock, in the middle of riverbed, is organic silt; (3) river is in Pipeline Crossing Program place river surface wider width, and the riverbed degree of depth is darker, and river surface water velocity is very fast.
In above-mentioned River Hydrology geological condition, because riverbed is darker, discharge is large, should not adopt cofferdam method construction; Because there is rock in riverbed, geological condition is complicated again, should not adopt directional drilling method construction.Therefore, more suitable method only has fluting, immersed tube construction method under water, the difficulty of construction of " but fluting, immersed tube construction method under water " is very large, be mainly reflected in following two aspects: (1) is middle for riverbed is organic silt, the limit of pulling in to shore, riverbed is the Complicated Geologic Condition of rock, how fast speed completes pipe canal digging work, is the huge test to the construction period; (2) how pipeline being put into pipe trench accurately, reduce error simultaneously as far as possible, for this problem, is the great difficult problem of puzzlement " fluting, immersed tube construction method under water " smooth construction.
In " under water fluting, immersed tube construction method ", the excavation of pipe trench is most basic work, how in the riverbed of complicated geology, to excavate out rapidly a satisfactory pipe trench, and the reduction of erection time is had to vital function.Open with the existing document of technical scheme of pontoon about excavation in prior art, as China Patent No. ZL200410023552.0, Granted publication day is on May 17th, 2006, invention and created name is: construction method for river crossing pipeline, furrow making dveice under water in this application case comprises buoyancy tank, long-armed power shovel, steel rope and earth anchor, excavating machine brachium is 18 meters, firmly be placed on buoyancy tank, buoyancy tank is assembled and is integrated by four little buoyancy tanks, totally four of steel ropes, totally four of earth anchors, steel rope one end is earth anchor, the other end is tied on buoyancy tank.Although the furrow making dveice under water in this application case can complete trench work under water, its crank motion is inconvenient to control, and cannot meet the work progress of casting concrete underwater pipeline stabilizing, requires further improvement.
Utility model content
1. the technical matters that utility model will solve
The purpose of this utility model is to overcome the pontoon that in prior art, immersed tube river crossing is used and uses inconvenient deficiency, a kind of immersed tube pontoon system that river crossing is used is provided, adopt the technical solution of the utility model, can control easily pontoon platform and move back and forth on the water surface, and build when funnel can meet casting concrete underwater pipeline stabilizing and construct and use.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The pontoon system that a kind of immersed tube of the present utility model river crossing is used, comprise pontoon platform, the first winch, the second winch, build funnel, excavating machine, the first anchor point, the second anchor point, the 3rd anchor point and the 4th anchor point, wherein: the side on bank, river is provided with the first anchor point and the 3rd anchor point, opposite side on bank, river is provided with the second anchor point and the 4th anchor point, the first above-mentioned anchor point is connected by the first control line with the second anchor point, and this first control line interts on pontoon platform; The 3rd above-mentioned anchor point is connected by the second control line with the 4th anchor point, and this second control line also interts on pontoon platform, and the first control line and the second control line all parallel with pipe trench, and this first control line and the second control line are used for fixedly pontoon platform; On described pontoon platform, be fixed with the first winch and the second winch, the first winch is connected with the second anchor point by its steel rope, the second winch is connected with the 4th anchor point by its steel rope, by controlling the first winch and the second winch is worked, drive pontoon platform to move back and forth on the water surface; Described excavating machine is positioned on pontoon platform, builds funnel and is arranged on pontoon platform, and this perpendicular movement of building funnel is controlled by guide chain, and the bottom of building funnel is positioned at the top of pipe trench, this build funnel for by concreting at pipeline.
As the utility model, further improve, described pontoon platform comprises steel pipe and the I-beam section of closed at both ends, and steel pipe is side by side arranges, and I-beam section is fixed by welding and steel pipe two ends, on the steel pipe of arranging side by side, is equipped with plank.Or described steel pipe adopts empty oil drum to replace.
As the utility model, further improve, on described pontoon platform, be provided with mark post mechanism, this mark post mechanism comprises steel pipe mark post main body and magnet, and described magnet is fixed on the bottom of steel pipe mark post main body.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compared with prior art, has following beneficial effect:
(1) the pontoon system that a kind of immersed tube of the present utility model river crossing is used, its first control line and the second control line are used for fixedly pontoon platform, the path of motion of pontoon platform is paralleled with pipe trench, and by controlling the first winch and the second winch is worked, can drive pontoon platform to move back and forth on the water surface, pontoon platform is controlled during crank motion on the water surface simple, reliable, the excavation effect of excavating machine is high, thereby can shorten the duration of excavation pipe trench;
(2) the pontoon system that a kind of immersed tube of the present utility model river crossing is used, it is built funnel and is arranged on pontoon platform, this perpendicular movement of building funnel is controlled by guide chain, build funnel for by concreting at pipeline, while making pontoon system of the present utility model can meet casting concrete underwater pipeline stabilizing, construction is used, and realizes one-object-many-purposes;
(3) the pontoon system that a kind of immersed tube of the present utility model river crossing is used, its reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pontoon system used of a kind of immersed tube of the present utility model river crossing;
Fig. 2 is the structural representation of concreting on pipeline.
Label declaration in schematic diagram:
1, pontoon platform; 21, the first winch; 22, the second winch; 3, build funnel; 4, excavating machine; 51, the first anchor point; 52, the second anchor point; 53, the 3rd anchor point; 54, the 4th anchor point; 61, the first control line; 62, the second control line; 7, pipe trench; 8, pipeline.
The specific embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
In conjunction with Fig. 1 and Fig. 2, the pontoon system that a kind of immersed tube river crossing of the present embodiment is used mainly by pontoon platform 1, the first winch 21, the second winch 22, build funnel 3, excavating machine 4, the first anchor point 51, the second anchor point 52, the 3rd anchor point 53 and the 4th anchor point 54 etc. and form.A side on bank, river is provided with the first anchor point 51 and the 3rd anchor point 53, opposite side on bank, river is provided with the second anchor point 52 and the 4th anchor point 54, the first anchor point 51 is connected by the first control line 61 with the second anchor point 52, and this first control line 61 interts on pontoon platform 1; The 3rd anchor point 53 is connected by the second control line 62 with the 4th anchor point 54, this second control line 62 also interts on pontoon platform 1, the first control line 61 and the second control line 62 all parallel with pipe trench 7, and this first control line 61 and the second control line 62 are for fixing pontoon platform 1 (as shown in Figure 1).Specifically in the present embodiment: pontoon platform 1 comprises steel pipe and the I-beam section of closed at both ends, steel pipe is side by side arranges, and I-beam section is fixed by welding and steel pipe two ends, on the steel pipe of arranging side by side, is equipped with plank.
On pontoon platform 1 in the present embodiment, be fixed with the first winch 21 and the second winch 22, the first winch 21 is connected with the second anchor point 52 by its steel rope, the second winch 22 is connected with the 4th anchor point 54 by its steel rope, by controlling the first winch 21 and the second winch 22 work, drive pontoon platform 1 to move back and forth on the water surface.Excavating machine 4 is positioned on pontoon platform 1, builds funnel 3 and is arranged on pontoon platform 1, and this perpendicular movement of building funnel 3 is controlled by guide chain, and the bottom of building funnel 3 is positioned at the top of pipe trench 7, this build funnel 3 for by concreting at pipeline 8.
Embodiment 2
The pontoon system that a kind of immersed tube river crossing of the present embodiment is used, its basic structure is with embodiment 1, difference is: in embodiment 1, the steel pipe of pontoon platform 1 adopts empty oil drum to replace, in addition, on pontoon platform 1, be provided with mark post mechanism, this mark post mechanism comprises steel pipe mark post main body and magnet, and described magnet is fixed on the bottom of steel pipe mark post main body.In the present embodiment, adopt empty oil drum to replace steel pipe, because empty oil drum deadweight is less, low price, can add large bearing capacity, again can be cost-saving, improved the economic benefit of engineering.In the present embodiment, increased mark post mechanism, the repetition measurement that the magnet adsorption in mark post mechanism can complete twin conduit 8 on pipeline 8, because mark post mechanism is fixed on pontoon platform 1, thereby has increased the accuracy of pipeline repetition measurement.
The pontoon system that a kind of immersed tube river crossing of embodiment 1～2 is used, during use, by controlling the first winch 21 and the second winch 22 work, drive pontoon platform 1 to move back and forth on the water surface, facilitate excavating machine 4 to excavate organic silt and the blasting broken stone in riverbed.When pipeline 8 sinks down into after pipe trench 7, need casting concrete to carry out underwater pipeline stabilizing, now pulling guide chain to make to build funnel 3 is 50cm perpendicular to pipeline 8 and the bottom of building funnel 3 apart from the top of pipeline 8, again by concrete delivery pipe by concrete conveyance to building in funnel 3, width by pipe trench 7 and concrete slump are calculated a certain attachment point and are built funnel 3 required amount of concrete of building below, when being poured into the required amount of concrete of calculating, stop, the situation of building with camera observation under water, after covering pipeline 8 top 30cm, cement concrete carries out building of next attachment point, otherwise continue to build until the top of pipeline 8 covers the thick cement concrete of 30cm.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (4)
1. the pontoon system that immersed tube river crossing is used, comprise pontoon platform (1), it is characterized in that: also comprise the first winch (21), the second winch (22), build funnel (3), excavating machine (4), the first anchor point (51), the second anchor point (52), the 3rd anchor point (53) and the 4th anchor point (54), wherein:
A side on bank, river is provided with the first anchor point (51) and the 3rd anchor point (53), opposite side on bank, river is provided with the second anchor point (52) and the 4th anchor point (54), above-mentioned the first anchor point (51) is connected by the first control line (61) with the second anchor point (52), and this first control line (61) interts on pontoon platform (1); The 3rd above-mentioned anchor point (53) is connected by the second control line (62) with the 4th anchor point (54), this second control line (62) also interts on pontoon platform (1), the first control line (61) and the second control line (62) all parallel with pipe trench (7), and this first control line (61) and the second control line (62) are for fixing pontoon platform (1);
On described pontoon platform (1), be fixed with the first winch (21) and the second winch (22), the first winch (21) is connected with the second anchor point (52) by its steel rope, the second winch (22) is connected with the 4th anchor point (54) by its steel rope, by controlling the first winch (21) and the second winch (22) work, drive pontoon platform (1) to move back and forth on the water surface; Described excavating machine (4) is positioned on pontoon platform (1), building funnel (3) is arranged on pontoon platform (1), this perpendicular movement of building funnel (3) is controlled by guide chain, the bottom of building funnel (3) is positioned at the top of pipe trench (7), this build funnel (3) for by concreting in pipeline (8).
2. the pontoon system that a kind of immersed tube according to claim 1 river crossing is used, it is characterized in that: described pontoon platform (1) comprises steel pipe and the I-beam section of closed at both ends, steel pipe is side by side arranges, I-beam section is fixed by welding and steel pipe two ends, on the steel pipe of arranging side by side, is equipped with plank.
3. the pontoon system that a kind of immersed tube according to claim 2 river crossing is used, is characterized in that: described steel pipe adopts empty oil drum to replace.
4. the pontoon system of using according to a kind of immersed tube river crossing described in claim 2 or 3, it is characterized in that: on described pontoon platform (1), be provided with mark post mechanism, this mark post mechanism comprises steel pipe mark post main body and magnet, and described magnet is fixed on the bottom of steel pipe mark post main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202185.XU CN203876952U (en) | 2014-04-23 | 2014-04-23 | Pontoon system for immersed pipes to pass through rivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202185.XU CN203876952U (en) | 2014-04-23 | 2014-04-23 | Pontoon system for immersed pipes to pass through rivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203876952U true CN203876952U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202185.XU Expired - Lifetime CN203876952U (en) | 2014-04-23 | 2014-04-23 | Pontoon system for immersed pipes to pass through rivers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203876952U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193713A (en) * | 2017-12-25 | 2018-06-22 | 中冶天工集团有限公司 | Large-diameter Steel pipeline Immersed tunnel technique under a kind of no precipitation condition |
| CN111691481A (en) * | 2020-06-17 | 2020-09-22 | 无锡市航道工程有限公司 | Immersed tube construction process for laying sewage interception main pipe |
| CN112212075A (en) * | 2020-10-14 | 2021-01-12 | 浙江世润建创科技发展有限公司 | Construction method of crossing structure for steel pipe to cross river |
-
2014
- 2014-04-23 CN CN201420202185.XU patent/CN203876952U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193713A (en) * | 2017-12-25 | 2018-06-22 | 中冶天工集团有限公司 | Large-diameter Steel pipeline Immersed tunnel technique under a kind of no precipitation condition |
| CN111691481A (en) * | 2020-06-17 | 2020-09-22 | 无锡市航道工程有限公司 | Immersed tube construction process for laying sewage interception main pipe |
| CN112212075A (en) * | 2020-10-14 | 2021-01-12 | 浙江世润建创科技发展有限公司 | Construction method of crossing structure for steel pipe to cross river |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |