CN112627112A - High-precision environment-friendly riprap and one-time rapid leveling method for underwater structure foundation - Google Patents
High-precision environment-friendly riprap and one-time rapid leveling method for underwater structure foundation Download PDFInfo
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- CN112627112A CN112627112A CN202011513863.0A CN202011513863A CN112627112A CN 112627112 A CN112627112 A CN 112627112A CN 202011513863 A CN202011513863 A CN 202011513863A CN 112627112 A CN112627112 A CN 112627112A
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- riprap
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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
- E02B3/121—Devices for applying linings on banks or the water bottom
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention provides a high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation, which comprises the following steps of: s1: according to the positioning information, the riprap leveling boat is pulled to a working surface, and stones are filled into the riprap bin; s2: controlling the stone throwing bin to submerge to the stone throwing depth; s3: opening a bottom plate of the stone throwing bin, and enabling the stone to fall to a working surface; s4: the riprap bin is lifted into the riprap leveling ship, and stones are filled into the riprap bin; s5: controlling the riprap bin to descend to the riprap surface of the step S3, and flattening the stone filled in the step S3 at one time by means of the riprap bin and the gravity of the stone; s6: the riprap leveling boat is towed to the next working surface, and the riprap bin is controlled to the riprap depth; s7: and repeating the steps S3 to S6 until all the polishing stone leveling work is finished. The invention adopts the modes of throwing stones in deep water and flattening the thrown stones by the stone throwing bin, has convenient operation, can be self-adapted to shallow water areas and deep water areas, does not need to manually execute underwater operation, and finishes stone throwing and leveling at one time.
Description
Technical Field
The invention belongs to the field of construction equipment of riprap foundation beds of structures such as ports, hydraulic engineering, submarine engineering and the like, and particularly relates to a high-precision environment-friendly riprap and a one-time rapid leveling method for an underwater structure foundation.
Background
With the increasing development of coast engineering in China, the construction of various hydraulic structures (buildings), hydraulic engineering, submarine tunnels, cross-sea bridges, ports, trestles, embankments and wharfs is increasingly frequent. The riprap foundation bed is used for replacing the original soft soil layer to improve the bearing capacity of the foundation, so that the load transmitted by the upper structure is uniformly transmitted to the foundation to meet the requirements of deformation and stability, the water permeability of the riprap foundation bed is fully utilized, the water level difference between the front and the back of a building is reduced, seepage is avoided, and the foundation is protected from being washed by waves and water currents. The foundation bed needs to be leveled and tamped and is guaranteed to be a plane, and the foundation bed needs to be a horizontal plane or an inclined plane.
At present, the main compaction modes of the riprap foundation bed of the domestic underwater structure comprise: hammer tamping and explosive tamping. The hammer tamping is to utilize the impact energy of a heavy hammer to realize the compaction of a foundation bed, and the mode has long construction period and high cost, and is difficult to meet the requirements of quick and large-area tamping; the method has the advantages of short blasting period, quick effect, low cost and guaranteed quality, but has obvious seismic effect on the surrounding environment, so the method is limited by the surrounding environment.
The 'Qingping No. 2' deepwater riprap leveling ship developed and modified by the China Commission first aviation service bureau is a special ship for leveling an underwater riprap foundation bed of a gravity type hydraulic structure in a water transport project, but the riprap leveling process has the problems that riprap and leveling cannot be completed at one time, the riprap precision is low, the influence of underwater ocean currents on block rock displacement is large, the disturbance of block rock lowering on an underwater foundation is large, and the like.
Disclosure of Invention
The invention provides a high-precision environment-friendly stone throwing and one-time rapid leveling method for an underwater structure foundation, aiming at the technical problems in the prior art, the method adopts a deep-water stone throwing mode and a stone throwing bin to flatten the thrown stone materials, is convenient to operate, can be self-adapted to shallow water areas and deep water areas, does not need to manually perform underwater operation, is safe and reliable, has low labor intensity, and can finish stone throwing and leveling at one time.
The technical scheme adopted by the invention is as follows: a high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation comprises the following steps:
s1: according to the positioning information, the riprap leveling boat is pulled to a working surface, and stones are filled into the riprap bin; stone materials can be filled in the stone throwing bin firstly, and then the stone throwing leveling ship is pulled to a working surface;
s2: controlling the stone throwing bin to submerge to the stone throwing depth;
s3: opening a bottom plate of the stone throwing bin, and enabling the stone to fall to a working surface;
s4: the riprap bin is lifted into the riprap leveling ship, and stones are filled into the riprap bin;
s5: controlling the riprap bin to submerge to the riprap surface of the step S3, pressing the stone dumped in the step S3 through a riprap bin bottom plate, and flattening the stone dumped in the step S3 at one time by means of the gravity of the riprap bin and the stone;
s6: the riprap leveling boat is towed to the next working surface, and the riprap bin is controlled to the riprap depth;
s7: and repeating the steps S3 to S6 until all the polishing stone leveling work is finished.
Preferably, when the same working face needs to be leveled by polishing stones for multiple times, the steps S2 to S5 are repeated until the stone polishing amount at the working face is reached.
Preferably, in step S6, after the riprap leveling is detected to meet the requirement, the riprap leveling boat is towed to the next working surface.
Preferably, the bottom plate of the stone throwing bin adopts a plurality of turning plates which are sequentially arranged and have the width of more than 20 centimeters.
Preferably, the stone throwing bin is drawn by a winch through a pulley block and a steel cable.
Preferably, the towing of the riprap levelling vessel is controlled by its surrounding anchor lines.
Preferably, the riprap process of the riprap leveling ship starts riprap filling when the riprap is close to a working surface underwater, so that the influence of underwater ocean current on the displacement of the block stones and the disturbance of the downward placement of the block stones on an underwater foundation are reduced to the maximum extent.
Compared with the prior art, the invention has the beneficial effects that:
1. the riprap is positioned close to the underwater mud surface, is slightly influenced by water flow and tide, and has high riprap precision; the stone throwing process has small disturbance to the foundations such as the underwater silt and the like, and belongs to environment-friendly throwing and filling.
2. The riprap bin is pulled by a steel cable, the riprap depth theory can be randomly adjusted by lifting the steel cable, the applicability is wide, the inclination angle of the riprap bin is adjustable, and the riprap bin can adapt to slope protection and slope adjustment of riprap on various side slopes; the bottom plate of the stone throwing bin adopts a plurality of turning plates which are sequentially arranged and have the width of more than 20 centimeters, has simple structure and is suitable for throwing and filling various stones with different particle sizes and the like.
3. The leveling of the invention is realized by one-time leveling by the gravity of the stone throwing bin loading stones in the next cycle, uneven boulders can be flattened, and the leveling efficiency is high.
4. The invention can finish the throwing, filling and leveling at one time, and has the advantages of high efficiency, high quality, simple structure, safety and environmental protection.
5. The riprap leveling ship starts riprap filling when the riprap process is close to a working surface underwater, thereby reducing the influence of underwater ocean current on the displacement of the block stones to the maximum extent, reducing the disturbance of the downward placement of the block stones on the underwater foundation, improving the precision and being environment-friendly.
Drawings
FIG. 1 is a block flow diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a riprap leveling vessel according to an embodiment of the present invention.
In the figure, 1-buoyancy tank, 2-sub-bin, 3-turning plate, 4-side plate, 5-hauling rope, 6-hauling pulley, 7-waterproof cylinder, 8-slideway, 9-windlass, 10-wire rope, 11-fixed pulley, 12-movable pulley and 13-anchor cable.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation, as shown in figure 1, comprising the following steps:
s1: according to GPS positioning information, the riprap leveling ship is pulled to a working surface through an anchor cable, and stones are filled into a riprap bin;
s2: controlling the stone throwing bin to submerge to the stone throwing depth through a winch;
s3: the bottom plate of the stone throwing bin is controlled to be opened through a waterproof cylinder, and stone uniformly falls to a working surface from the space between the turning plates; the distance between the turning plates 3 corresponds to the maximum grain size of the stone;
s4: the riprap bin rises into the riprap leveling ship, the bottom plate returns to the horizontal state, and stones are filled into the riprap bin;
s5: controlling the riprap bin to submerge until the bottom plate of the riprap bin presses the stone dumped in the step S3, and the gravity of the riprap bin and the stone dumped in the riprap bin completely acts on the dumped stone to flatten the stone; when the same working surface needs to be leveled by stone throwing for multiple times, repeating the steps from S2 to S5 until the stone throwing amount at the working surface is reached;
s6: after the riprap leveling of the detected working surface meets the requirement, the riprap leveling boat is pulled to the next working surface through the anchor cable, and the riprap bin is controlled to the riprap depth;
s7: and repeating the steps S3 to S6 until all the polishing stone leveling work is finished. The riprap bin is collected in the riprap leveling ship and sealed for towing.
The riprap leveling ship structure used by the riprap leveling method comprises a ship body and a riprap bin, wherein a plurality of buoyancy tanks 1 are arranged below the ship body, a square hole is formed in the middle of the ship body, the riprap bin capable of being lifted is arranged below the square hole, a plurality of turning plates 3 are adopted on a bottom plate of the riprap bin, each turning plate 3 is connected with the riprap bin through a connecting shaft at one side, and the other opposite side is connected with a traction mechanism through a traction rope 5. The stone throwing bin is composed of a plurality of sub-bins 2 which are connected in sequence, a side plate 4 is arranged on the sub-bin 2 which is positioned on the outermost side, and a bottom plate of the sub-bin 2 is a turnover plate group. Every two adjacent turning plates form a turning plate group in a split mode, the turning plates 3 in the turning plate group share a traction rope 5, and the traction rope 5 passes by a traction pulley 6 connected with a traction mechanism. The traction mechanism is positioned on the sub-bin 2. Traction mechanism includes waterproof cylinder 7, slider and slide 8, waterproof cylinder 7's piston rod is connected with the slider, the slider is located slide 8, traction pulley 6 is fixed on the slider. The ship body is provided with a winch 9, a steel cable 10 passes around a fixed pulley 11 and a movable pulley 12, and two ends of the steel cable 10 are respectively connected with the winch 9. The fixed pulley 11 is positioned on the ship body, and the movable pulley 12 is positioned on the stone throwing bin. Each sub-bin 2 of the stone throwing bin is provided with a movable pulley 12. The two sides of the sub-bin 2 are symmetrically provided with a movable pulley 12, a traction mechanism and a traction rope 5. The hull is generally connected with anchor cables 13 at four corners respectively, and more anchor cables 13 can be connected as required. The buoyancy tank 1 is provided with a water quantity control device which can inject water or discharge water into the buoyancy tank 1 to adjust the height of the ship body.
Comparison of this embodiment with the No. 2 throwing stone flattening process of qingping:
the Qingping No. 2 can only throw stones on the gravel cushion layer with the particle size of less than or equal to 20cm and spread, and the particle size of the embodiment can be thrown and filled with different particle sizes according to the requirement; the Qingping No. 2 is used for leveling broken stones through scraping, firstly, the leveling of an underwater boulder foundation bed needs to be guaranteed, and in the embodiment, uneven boulders can be flattened through a gravity pressing mode; the Qingping No. 2 is suitable for leveling broken stones, and cannot achieve leveling with a slope ratio, and the leveling and slope leveling can be achieved by adjusting the lifting of the 4 steel cables; the Qingping No. 2 is leveled by moving a scraper, and is leveled line by line, the speed is low, the efficiency is low, the whole polished stone plane is leveled at one time, the efficiency is high, and the speed is high; the Qingping No. 2 leveling machine is influenced by the length of the telescopic material conveying pipe, the maximum working water depth is less than or equal to 45m, and the riprap in various water depths can be achieved by adjusting the lifting steel cable according to the theory of the embodiment.
The present invention has been described in detail with reference to the embodiments, but the description is only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The scope of the invention is defined by the claims. The technical solutions of the present invention or those skilled in the art, based on the teaching of the technical solutions of the present invention, should be considered to be within the scope of the present invention, and all equivalent changes and modifications made within the scope of the present invention or equivalent technical solutions designed to achieve the above technical effects are also within the scope of the present invention.
Claims (8)
1. The high-precision environment-friendly stone throwing and one-time rapid leveling method for the underwater structure foundation is characterized by comprising the following steps of: the method comprises the following steps:
s1: according to the positioning information, the riprap leveling boat is pulled to a working surface, and stones are filled into the riprap bin; s2: controlling the stone throwing bin to submerge to the stone throwing depth;
s3: opening a bottom plate of the stone throwing bin, and enabling the stone to fall to a working surface;
s4: the riprap bin is lifted into the riprap leveling ship, and stones are filled into the riprap bin;
s5: controlling the riprap bin to submerge to the riprap surface of the step S3, pressing the stone dumped in the step S3 through a riprap bin bottom plate, and flattening the stone dumped in the step S3 at one time by means of the gravity of the riprap bin and the stone;
s6: the riprap leveling boat is towed to the next working surface, and the riprap bin is controlled to the riprap depth;
s7: and repeating the steps S3 to S6 until all the polishing stone leveling work is finished.
2. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: and when the same working face needs to be leveled by stone throwing for multiple times, repeating the steps S2 to S5 until the stone throwing amount at the working face is reached.
3. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: in step S6, after the riprap leveling is detected to meet the requirements, the riprap leveling boat is towed to the next working surface.
4. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: the bottom plate of the riprap chamber adopts a plurality of turning plates which are sequentially arranged and have the width of more than 20 centimeters.
5. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: the stone throwing bin is drawn by a winch through a pulley block and a steel cable.
6. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: the traction of the riprap leveling boat is controlled by anchor cables around the riprap leveling boat.
7. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: the stone throwing process of the stone throwing leveling ship starts throwing and filling when the underwater stone throwing leveling ship approaches to a working surface.
8. A high-precision environment-friendly riprap and one-time quick leveling method for an underwater structure foundation as claimed in claim 1, wherein: in step S1, stones may be loaded into the riprap storage and then the riprap leveling boat is towed to the working surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011513863.0A CN112627112A (en) | 2020-12-18 | 2020-12-18 | High-precision environment-friendly riprap and one-time rapid leveling method for underwater structure foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011513863.0A CN112627112A (en) | 2020-12-18 | 2020-12-18 | High-precision environment-friendly riprap and one-time rapid leveling method for underwater structure foundation |
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| CN112627112A true CN112627112A (en) | 2021-04-09 |
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| CN202011513863.0A Pending CN112627112A (en) | 2020-12-18 | 2020-12-18 | High-precision environment-friendly riprap and one-time rapid leveling method for underwater structure foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419118A (en) * | 2022-09-30 | 2022-12-02 | 武汉理工大学 | Offshore pile foundation anti-scouring device and installation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1136178A (en) * | 1966-02-11 | 1968-12-11 | Baggermij Dirk Verstoep N V | Apparatus and method of laying the foundations of a structure |
| JPS60148927A (en) * | 1984-01-13 | 1985-08-06 | Toa Harbor Works Co Ltd | Method of levelling riprap in water and device thereof |
| JP2002070013A (en) * | 2000-08-31 | 2002-03-08 | Ohmoto Gumi Co Ltd | Underwater riprap leveler and underwater riprap leveling method |
| CN1413875A (en) * | 2002-08-28 | 2003-04-30 | 天津大学 | Pontoon cabin row for stone spreading and levelling continuous work of under water riprap foundation bed construction |
| CN102828514A (en) * | 2012-09-13 | 2012-12-19 | 江苏淮阴船用机械有限公司 | Riprap operation device of lifting hopper |
| CN105216976A (en) * | 2015-10-21 | 2016-01-06 | 中国水电建设集团港航建设有限公司 | A kind of deep water environmental protection jackstone leveling ship |
| CN110093925A (en) * | 2019-06-18 | 2019-08-06 | 中国港湾工程有限责任公司 | Underwater dumped rockfill device |
| CN111119190A (en) * | 2020-01-08 | 2020-05-08 | 中交上海航道局有限公司 | Induction type automatic spreader |
-
2020
- 2020-12-18 CN CN202011513863.0A patent/CN112627112A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1136178A (en) * | 1966-02-11 | 1968-12-11 | Baggermij Dirk Verstoep N V | Apparatus and method of laying the foundations of a structure |
| JPS60148927A (en) * | 1984-01-13 | 1985-08-06 | Toa Harbor Works Co Ltd | Method of levelling riprap in water and device thereof |
| JP2002070013A (en) * | 2000-08-31 | 2002-03-08 | Ohmoto Gumi Co Ltd | Underwater riprap leveler and underwater riprap leveling method |
| CN1413875A (en) * | 2002-08-28 | 2003-04-30 | 天津大学 | Pontoon cabin row for stone spreading and levelling continuous work of under water riprap foundation bed construction |
| CN102828514A (en) * | 2012-09-13 | 2012-12-19 | 江苏淮阴船用机械有限公司 | Riprap operation device of lifting hopper |
| CN105216976A (en) * | 2015-10-21 | 2016-01-06 | 中国水电建设集团港航建设有限公司 | A kind of deep water environmental protection jackstone leveling ship |
| CN110093925A (en) * | 2019-06-18 | 2019-08-06 | 中国港湾工程有限责任公司 | Underwater dumped rockfill device |
| CN111119190A (en) * | 2020-01-08 | 2020-05-08 | 中交上海航道局有限公司 | Induction type automatic spreader |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419118A (en) * | 2022-09-30 | 2022-12-02 | 武汉理工大学 | Offshore pile foundation anti-scouring device and installation method thereof |
| CN115419118B (en) * | 2022-09-30 | 2024-01-16 | 武汉理工大学 | Offshore pile foundation scour prevention device and installation method thereof |
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Application publication date: 20210409 |
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