CN111119211A - Construction method for filling sand bags in deepwater cofferdam - Google Patents
Construction method for filling sand bags in deepwater cofferdam Download PDFInfo
- Publication number
- CN111119211A CN111119211A CN201911297415.9A CN201911297415A CN111119211A CN 111119211 A CN111119211 A CN 111119211A CN 201911297415 A CN201911297415 A CN 201911297415A CN 111119211 A CN111119211 A CN 111119211A
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- China
- Prior art keywords
- bag
- sand
- anchors
- barge
- cofferdam
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- 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
-
- 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
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
Abstract
The invention provides a construction method of a sand bag filling of a deep water cofferdam, and relates to the field of engineering construction. The construction method of the sand bag filling of the deep water cofferdam comprises the following steps: positioning a laying ship to a first preset position; positioning a barge to a second predetermined position proximate to the spread ship; laying sand bags on the spread ship, and binding the sand bags on a roller on the spread ship; filling sand in the barge into a bag head of the sand bag; rotating the roll to sink the bag head in water according to a preset line; continuously filling the sand in the barge into the bag of the sand bag and the bag tail in sequence; and sinking the bag tail into water according to a preset line so as to enable the sand bag to be arranged at a third preset position in the water. The construction method for filling the sand bags in the deepwater cofferdam provided by the invention can realize more accurate positioning of the positions of the sand bags and can lay the sand bags at more accurate positions.
Description
Technical Field
The invention relates to the field of engineering construction, in particular to a construction method of a deepwater cofferdam filled sand bag.
Background
In the process of constructing the deepwater cofferdam, the situation of large wind waves can occur, and the construction method of the deepwater cofferdam in the prior art is difficult to realize the accurate positioning of the sand bags, so that the situation of overlarge engineering error can occur.
Disclosure of Invention
The invention aims to provide a construction method for filling sand bags in a deepwater cofferdam, which can realize accurate positioning of the sand bags.
The embodiment of the invention is realized by the following steps:
a construction method of a deepwater cofferdam filled sand bag comprises the following steps:
positioning a laying ship to a first preset position;
positioning a barge to a second predetermined position proximate to the spread ship;
laying sand bags on the spread ship, and binding the sand bags on a roller on the spread ship;
filling sand in the barge into a bag head of the sand bag;
rotating the roll to sink the bag head in water according to a preset line;
continuously filling the sand in the barge into the bag of the sand bag and the bag tail in sequence;
and sinking the bag tail into water according to a preset line so as to enable the sand bag to be arranged at a third preset position in the water.
In a preferred embodiment of the present invention, the method further comprises the following steps:
the method comprises the steps of positioning the spread ship from different angles by utilizing at least six first anchors respectively, wherein the at least six first anchors are distributed around the spread ship at intervals in a ring shape.
In a preferred embodiment of the invention, the angles between the at least six first anchors and the horizontal plane are all greater than or equal to 60 °.
In a preferred embodiment of the present invention, the anchoring length of the at least six first anchors is 250 to 300 m.
In a preferred embodiment of the present invention, the method further comprises the following steps:
and finely adjusting the position of the laying ship by controlling the anchor machine so as to ensure that the bag head is sunk in water according to a preset line.
In a preferred embodiment of the present invention, the method further comprises the following steps:
the barge is positioned from different angles using at least four second anchors, respectively, and the at least four second anchors are spaced annularly around the barge.
In a preferred embodiment of the invention, the angles between the at least four second anchors and the horizontal plane are all greater than or equal to 60 °.
In a preferred embodiment of the present invention, the anchoring length of the at least four second anchors is 250 to 300 m.
In a preferred embodiment of the invention, the length of the sand bag is set to be 50-60 m, and the width of the sand bag is set to be 15-25 m.
In the preferred embodiment of the invention, the length of the sandbag is set to 54m, and the width of the sandbag is set to 20 m.
The embodiment of the invention has the beneficial effects that: according to the construction method for filling the sand bags in the deepwater cofferdam, provided by the invention, the primary positioning of the sand bags can be realized by positioning the laying ship, and then the more accurate positioning of the positions of the sand bags can be realized by the steps of firstly sinking the bag head and then depositing the bag tail, so that the sand bags can be laid at more accurate positions.
Detailed Description
First embodiment
The embodiment provides a construction method of a sand bag filling in a deepwater cofferdam, which is characterized by comprising the following steps:
positioning a laying ship to a first preset position;
positioning the barge to a second preset position close to the spread ship;
laying the sand bags on a spread ship, and binding the sand bags on a roller on the spread ship;
filling sand in the barge into a bag head of a sand bag;
rotating and rolling to enable the bag head to be sunk in water according to a preset line;
continuously filling the sand in the barge into the bag of the sand bag and the bag tail in sequence;
and sinking the bag tail into the water according to a preset line so as to enable the sand bag to be arranged at a third preset position in the water.
The sand bag positioning device has the advantages that the sand bag can be initially positioned by utilizing the positioning of the laying ship, the bag head is firstly sunk by utilizing the positioning, and the bag tail is then deposited, so that the sand bag can be positioned more accurately, and the sand bag can be laid at a more accurate position.
Optionally, in this embodiment, the method further includes the following steps:
the berthing ship is positioned from different angles by utilizing at least six first anchors respectively, and the at least six first anchors are distributed around the berthing ship in an annular interval mode.
The six first anchors can be used for realizing the accurate positioning of the laying ship, and the stable work of the laying ship at a preset position can be ensured in a deep water area with large stormy waves, so that the sand bag can be accurately laid at the preset position.
Optionally, in this embodiment, the included angles between the at least six first anchors and the horizontal plane are all greater than or equal to 60 °.
Through multiple tests, under the condition that the included angle between the first anchor and the horizontal plane is larger than or equal to 60 degrees, six or more than six first anchors can realize more stable positioning of the laying ship; moreover, it should be noted that under the condition that the first anchors (for example, six) with the same number are annularly distributed at intervals around the spread ship to position the spread ship, and under the condition that the included angle between the first anchors and the horizontal plane is greater than or equal to 60 degrees, the spread ship can be positioned more stably; that is, in the case where the same stable positioning is achieved, the number of the first anchors used is smaller in the case where the angle between the first anchor and the horizontal plane is larger or smaller than 60 °.
Optionally, in this embodiment, the at least six first anchors are all angled at 70 ° to the horizontal.
Multiple tests prove that under the condition that the included angle between the first anchor and the horizontal plane is equal to 70 degrees, six or more first anchors can realize the most stable positioning of the laying ship; that is, under the condition of the same number of first anchors, when the included angle between the first anchors and the horizontal plane is equal to 70 degrees, the first anchors are most stable for positioning the laying ship; that is, the number of first anchors can be used to a minimum to achieve the same stability, saving cost.
Optionally, in this embodiment, the anchoring length of at least six first anchors is 250-300 m.
The anchoring length of the first anchor is 250-300 m, so that the included angle between the first anchor and the horizontal plane is about 70 degrees; the position of the first anchor is positioned by calculating the anchoring length, so that the construction operation is convenient.
Optionally, in this embodiment, the method further includes the following steps:
the position of the laying ship is finely adjusted by controlling the anchor machine so as to ensure that the bag head is sunk in water according to a preset line.
Through control anchor machine, can realize carrying out the removal of minizone to the position of arranging the ship to can realize adjusting the income water position of bag head, go into water in order to realize the bag head in more accurate position, with the position of guaranteeing that the sand bag is laid more accurate, prevent to take place great skew at the position of the big deep water region sand bag of stormy waves.
Optionally, in this embodiment, the method further includes the following steps:
the barge is positioned from different angles using at least four second anchors, respectively, and the at least four second anchors are spaced annularly about the barge.
The positioning of the position of the barge is achieved by means of at least four second anchors, and since the barge functions to provide a platform for sand storage, the error in positioning of the barge can be large as long as the sand bag on the lay-down vessel can be kept properly supplied with sand.
Alternatively, in this embodiment, the spread and the barge are placed against each other.
It will be appreciated that in the event of high wind and high sea, the engagement of the barge and the barge with each other will effectively reduce the pitch of the barge and the barge, thereby reducing the displacement of the barge and the barge in the horizontal plane and achieving a more stable positioning of the barge and the barge.
Optionally, in this embodiment, the included angles between the at least four second anchors and the horizontal plane are all greater than or equal to 60 °.
Through multiple tests, under the condition that the included angle between the second anchor and the horizontal plane is larger than or equal to 60 degrees, four or more second anchors can realize more stable positioning of the barge; moreover, it should be noted that, under the condition that the barge is positioned by the same number of second anchors (for example, four) which are annularly distributed at intervals around the barge, and under the condition that the included angle between the second anchors and the horizontal plane is greater than or equal to 60 degrees, the barge can be positioned more stably; that is, in the case where the same stable positioning is achieved, the number of the second anchors used is smaller in the case where the angle between the second anchor and the horizontal plane is larger or smaller than 60 °.
Optionally, in this embodiment, the at least four second anchors are all at an angle of 70 ° to the horizontal.
Through a plurality of tests, the four or more second anchors can realize the most stable positioning of the barge under the condition that the included angle between the second anchors and the horizontal plane is equal to 70 degrees; that is, in the case of the same number of second anchors, the positioning of the second anchors to the barge is most stable when the angle between the second anchors and the horizontal plane is equal to 70 °; that is, the number of second anchors can be used to a minimum to achieve the same stability, saving cost.
Optionally, in this embodiment, the anchoring length of at least four second anchors is 250-300 m.
The anchoring length of the second anchor is 250-300 m, so that the included angle between the second anchor and the horizontal plane is about 70 degrees; the position of the second anchor is positioned by calculating the anchoring length, so that the construction operation is convenient.
Optionally, in this embodiment, the length of the sand bag is set to be 50-60 m, and the width of the sand bag is set to be 15-25 m.
In the great deep water region of stormy waves, under the too big condition of width of sand bag, tear easily taking place under the effect of stormy waves, through many times of experiments verification, under the condition that the sand bag width is 15 ~ 25m, can effectively guarantee that the sand bag is not torn under, the sand bag has great accommodation space in addition.
Optionally, in this embodiment, the length of the sand bag is set to 54m, and the width of the sand bag is set to 20 m.
Through a plurality of experiments, the sand bag can be filled to the maximum extent under the condition of ensuring stable work under the condition that the length of the sand bag is 54m and the width of the sand bag is 20 m.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The construction method of the deepwater cofferdam filled sand bag is characterized by comprising the following steps:
positioning a laying ship to a first preset position;
positioning a barge to a second predetermined position proximate to the spread ship;
laying sand bags on the spread ship, and binding the sand bags on a roller on the spread ship;
filling sand in the barge into a bag head of the sand bag;
rotating the roll to sink the bag head in water according to a preset line;
continuously filling the sand in the barge into the bag of the sand bag and the bag tail in sequence;
and sinking the bag tail into water according to a preset line so as to enable the sand bag to be arranged at a third preset position in the water.
2. The method for constructing a sand-filled bag in a deep water cofferdam as recited in claim 1, further comprising the steps of:
the method comprises the steps of positioning the spread ship from different angles by utilizing at least six first anchors respectively, wherein the at least six first anchors are distributed around the spread ship at intervals in a ring shape.
3. The method for constructing a deepwater cofferdam filled sandbag according to claim 2, wherein the included angles between said at least six first anchors and the horizontal plane are all greater than or equal to 60 °.
4. The deepwater cofferdam sandbag-filling construction method according to claim 2, wherein the anchoring length of the at least six first anchors is 250 to 300 m.
5. The deepwater cofferdam sandbag filling construction method as claimed in claim 2, 3 or 4, further comprising the steps of:
and finely adjusting the position of the laying ship by controlling the anchor machine so as to ensure that the bag head is sunk in water according to a preset line.
6. The method for constructing a sand-filled bag in a deep water cofferdam as recited in claim 1, further comprising the steps of:
the barge is positioned from different angles using at least four second anchors, respectively, and the at least four second anchors are spaced annularly around the barge.
7. The method for constructing a deepwater cofferdam filled sandbag according to claim 6, wherein the included angles between said at least four second anchors and the horizontal plane are all greater than or equal to 60 °.
8. The deepwater cofferdam sandbag-filling construction method as claimed in claim 6, wherein the at least four second anchors have a dropping length of 250 to 300 m.
9. The method for constructing a sand-filled bag in a deep water cofferdam as claimed in claim 1, wherein the length of the sand bag is set to 50-60 m and the width of the sand bag is set to 15-25 m.
10. The deepwater cofferdam filling sandbag construction method according to claim 5, wherein the length of the sandbag is set to 54m and the width of the sandbag is set to 20 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297415.9A CN111119211A (en) | 2019-12-16 | 2019-12-16 | Construction method for filling sand bags in deepwater cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297415.9A CN111119211A (en) | 2019-12-16 | 2019-12-16 | Construction method for filling sand bags in deepwater cofferdam |
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| Publication Number | Publication Date |
|---|---|
| CN111119211A true CN111119211A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911297415.9A Pending CN111119211A (en) | 2019-12-16 | 2019-12-16 | Construction method for filling sand bags in deepwater cofferdam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211210A (en) * | 2020-10-19 | 2021-01-12 | 湖州三通水利建设有限公司 | Underwater fixing method of sandbag cofferdam |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452649A (en) * | 2014-11-20 | 2015-03-25 | 浙江省围海建设集团股份有限公司 | Abyssal region seawall sand quilt laying equipment |
| CN108035358A (en) * | 2017-12-29 | 2018-05-15 | 中交天津航道局有限公司 | The method that Working Ships laying sand degree of being flattened is improved for high wind wave profundal zone |
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2019
- 2019-12-16 CN CN201911297415.9A patent/CN111119211A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452649A (en) * | 2014-11-20 | 2015-03-25 | 浙江省围海建设集团股份有限公司 | Abyssal region seawall sand quilt laying equipment |
| CN108035358A (en) * | 2017-12-29 | 2018-05-15 | 中交天津航道局有限公司 | The method that Working Ships laying sand degree of being flattened is improved for high wind wave profundal zone |
Non-Patent Citations (2)
| Title |
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| 上海长江口青草沙水源地原水工程论文集: "大尺寸砂袋工艺在青草沙水库工程中的应用", 《上海长江口青草沙水源地原水工程论文集》 * |
| 符超等: "复杂海况超深水充填袋装砂施工技术浅谈", 《科技视界》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211210A (en) * | 2020-10-19 | 2021-01-12 | 湖州三通水利建设有限公司 | Underwater fixing method of sandbag cofferdam |
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Application publication date: 20200508 |
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