CN101565934B - Method for laying geotextile underwater - Google Patents
Method for laying geotextile underwater Download PDFInfo
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- CN101565934B CN101565934B CN2009101303551A CN200910130355A CN101565934B CN 101565934 B CN101565934 B CN 101565934B CN 2009101303551 A CN2009101303551 A CN 2009101303551A CN 200910130355 A CN200910130355 A CN 200910130355A CN 101565934 B CN101565934 B CN 101565934B
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Abstract
The invention provides a method for laying geotextile underwater, which includes steps of: 1. berthing the laying ship along a dike axis; 2, fastening the geotextile to be layed with rope; 3. pulling the pulley set to coil the geotextile; 4. nailing two positioning steel pipes close to the ship edge; 5. putting the geotextile down close to the steel pipes; 6. laying the geotextile coil beneath water, pressing the geotextile edge with a stone bag, then moving the ship; 7. dropping a stone bag upon a determined distance of moving; 8. recycling geotextile tube in the water; 9. pressing the terminal edge of the geotextile with a stone bag, and laying the next block of geotextile. The method for laying geotextile underwater is capable of uniformly distributing gravity onto the draining board ofthe lower layer, and the phenomenon of draining board break due to partially bearing too much force. The method for layer geotextile underwater is further capable of effectively reducing maintenancefrequency of the outer port channel, so as to reduce maintenance cost of the port.
Description
Technical field
The present invention relates to a kind of method of subaqueous construction method, particularly a kind of laying geotextile underwater.
Background technology
As shown in Figure 1, prevent from the mole basis, to set band drain 1 earlier usually in the training works of silt alluvial, re-lay the sandstone bed course afterwards at the harbour outer channel.But because building stones not of uniform size, the weight of building stones is inhomogeneous, if directly lay sandstone on band drain 1, may cause that band drain 1 is big by volume at regional area, the heavier building stones compression failure of weight.Therefore, need before laying the sandstone bed course, lay geotextile 2 (the common geotextile unit mass 〉=700g/m that lay of one deck such as geotextiles earlier
2Vertical ultimate tension 〉=200KN/m; Broadwise ultimate tension 〉=120KN/m; Joint strength 〉=40KN; Friction factor 〉=0.6 with sand), lay the sandstone bed course then on geotextile 2, geotextile 2 can be evenly distributed to the gravity of sandstone bed course on the band drain 1 of lower floor like this, avoids band drain 1 local pressure excessive, thereby is damaged.
In view of laying geotextile prevents important function in the silt alluvial regulation at the harbour outer channel, the method that is necessary to invent a kind of laying geotextile in fact is so that finish the operation of laying under water of geotextile rapidly efficiently.
Summary of the invention
Main purpose of the present invention is to be, provides a kind of and can finish the method that geotextile is laid operation under water rapidly efficiently.
To achieve these goals, the method for laying geotextile underwater of the present invention is such:
A kind of method of laying geotextile underwater, this method comprises the steps:
Step 1: lay ship and stay the position along the dike axis;
Step 2: geotextile volume bolt that will be to be laid with rope is good;
Step 3: the pulling assembly pulley, the geotextile volume is mentioned;
Step 4: set two positioning steel tubes close aboard;
Step 5: the geotextile volume is put down near steel pipe;
Step 6: the geotextile volume is put into water-bed back the geotextile limit is pressed, move ship then with the rubble bag;
Step 7: whenever move the ship certain distance and just concentrate a collection of rubble bag of throwing;
Step 8: regain the empty geotextile tube of staying in the water;
Step 9: the whole limit of geotextile is pressed with the rubble bag, carry out the laying of next piece.
As preferred implementation, utilize GPS determination step 1 described dike axis.
As preferred implementation, described geotextile the to be laid volume of step 2 is pressed the good and adjacent distance of multiple spot bolt at 2 and is equated.
As preferred implementation, the spacing of described two positioning steel tubes of step 4 is roughly 7 meters.
As preferred implementation, the described certain distance of step 7 is 4～5 meters.
Beneficial effect of the present invention is: the method for laying geotextile underwater of the present invention adopts the roller bearing laying method, can increase work efficiency, and can guarantee construction quality again.The method of laying geotextile underwater of the present invention can be evenly distributed to the gravity of sandstone bed course on the band drain of lower floor, avoids the band drain local pressure excessive and cause the phenomenon of damage.The method of laying geotextile underwater of the present invention can also effectively reduce the frequency of maintenance of harbour outer channel, thereby reduces the maintenance cost at harbour.
Description of drawings
Below, will be described in more detail the specific embodiment of the present invention in conjunction with the accompanying drawings, wherein:
Fig. 1 is the schematic diagram of laying geotextile underwater;
Fig. 2 is the flow chart of laying geotextile underwater method of the present invention.
The specific embodiment
The method of laying geotextile underwater of the present invention preferably adopts first self-propelled covered lighter with good mooring system as the laying boats and ships, each two mouthfuls of mooring system before and after the described laying boats and ships, and ship one side is joined two cover assembly pulleys, is used to transfer geotextile to be laid.In addition, also need one side by side near second self-propelled covered lighter of described laying boats and ships, this second self-propelled covered lighter is used to load the rubble bag and the double as diver uses ship.The direction in the position of described two self-propelled covered lighters is along the dike axis direction, and the centre position of two ships is lays the sideline, and the middle ware of two ships is apart from about 0.4m-0.8m, and this distance just can be put down described geotextile.After described laying boats and ships are in place, water under the diver, the geotextile that the workman will spool with steel pipe in advance along shipboard puts down.The diver pulls at geotextile laying edge in the process of above-mentioned laying geotextile, paves geotextile, afterwards the rubble bag evenly is pressed on the geotextile, and purpose is to prevent that described geotextile from being washed away and forming certain flowing water section by current.
As shown in Figure 2, the method for laying geotextile underwater of the present invention may further comprise the steps:
Step 101: lay ship and stay position (being that the ship limit is the initial sideline that geotextile is laid) along the dike axis;
Step 102: geotextile volume bolt that will be to be laid with rope is good;
Step 103: the pulling assembly pulley, the geotextile volume is mentioned;
Step 104: set two positioning steel tubes that keep at a certain distance away close aboard, preferred 7 meters of described distance;
Step 105: the geotextile rolling-in by steel pipe with assembly pulley slowly put down, entry;
Step 106: the diver is put into water-bed back with the geotextile volume and with the rubble bag geotextile limit is pressed, and commander ship's staff moves ship then, so that sprawl geotextile;
Step 107: ship whenever moves 4～5 meters and just concentrates a collection of rubble bag of throwing, has put up to geotextile;
Step 108: regain the empty geotextile tube of staying in the water;
Step 109: the diver presses the whole limit of geotextile with the rubble bag, and repeating step 101 carries out follow-up laying.
The geotextile laying method of the application of the invention can be increased work efficiency greatly, preferably utilizes GPS to measure sideline and mensuration axis lap width during laying, and it is met design requirement.
Claims (5)
1. the method for a laying geotextile underwater, this method comprises the steps:
Step 1: lay ship and stay the position along the dike axis;
Step 2: geotextile volume bolt that will be to be laid with rope is good;
Step 3: the pulling assembly pulley, the geotextile volume is mentioned;
Step 4: set two positioning steel tubes close aboard;
Step 5: the geotextile volume is put down near steel pipe;
Step 6: the geotextile volume is put into water-bed back the geotextile limit is pressed, move ship then with the rubble bag;
Step 7: whenever move the ship certain distance and just concentrate a collection of rubble bag of throwing;
Step 8: regain the empty geotextile tube of staying in the water;
Step 9: the whole limit of geotextile is pressed with the rubble bag, carry out the laying of next piece.
2. the method for laying geotextile underwater according to claim 1 is characterized in that: utilize GPS determination step 1 described dike axis.
3. the method for laying geotextile underwater according to claim 1 is characterized in that: it is equal that described geotextile the to be laid volume of step 2 is pressed the good and adjacent distance of multiple spot bolt at 2.
4. the method for laying geotextile underwater according to claim 1, it is characterized in that: the spacing of described two positioning steel tubes of step 4 is 7 meters.
5. the method for laying geotextile underwater according to claim 1, it is characterized in that: the described certain distance of step 7 is 4～5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101303551A CN101565934B (en) | 2008-04-24 | 2009-04-01 | Method for laying geotextile underwater |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810104827 | 2008-04-24 | ||
| CN200810104827.1 | 2008-04-24 | ||
| CN2009101303551A CN101565934B (en) | 2008-04-24 | 2009-04-01 | Method for laying geotextile underwater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101565934A CN101565934A (en) | 2009-10-28 |
| CN101565934B true CN101565934B (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101303551A Active CN101565934B (en) | 2008-04-24 | 2009-04-01 | Method for laying geotextile underwater |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088828A (en) * | 2011-11-01 | 2013-05-08 | 中交上海航道局有限公司 | Construction method for laying underwater geogrids |
| CN103485308B (en) * | 2012-06-09 | 2015-06-10 | 浙江科技学院 | Underwater geotextile fabric laying method |
| CN103046553B (en) * | 2013-01-30 | 2014-09-03 | 安徽水利开发股份有限公司 | Method for carrying out deepwater laying on large-volume reinforced mud-filling tubular bags by using geotextiles-laying vessels |
| CN103774698B (en) * | 2014-02-14 | 2015-05-06 | 中国十九冶集团有限公司 | Soil engineering drainage-free construction method |
| CN103993605B (en) * | 2014-06-11 | 2016-06-08 | 安徽水利开发股份有限公司 | Blow the method for filling device filling mud filling tube bag with arranging ship boat-carrying and blow filling device |
Citations (4)
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|---|---|---|---|---|
| DE4033506A1 (en) * | 1990-10-21 | 1992-04-23 | Naue Fasertechnik | Underwater installation system for geotextile mats - uses combination pontoon for installation, guidance, and rockfill |
| CN1299903A (en) * | 2000-10-30 | 2001-06-20 | 中国水利水电科学研究院 | Underwater drawing, arranging and constructing process |
| CN1442342A (en) * | 2002-03-06 | 2003-09-17 | 中港第三航务工程局 | Under water flexible raft laying engineering ship and under water flexible raft laying technology |
| CN101033614A (en) * | 2006-03-10 | 2007-09-12 | 天津港湾工程研究所 | Underwater vacuum prepressing reinforcement soft base technique method |
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2009
- 2009-04-01 CN CN2009101303551A patent/CN101565934B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033506A1 (en) * | 1990-10-21 | 1992-04-23 | Naue Fasertechnik | Underwater installation system for geotextile mats - uses combination pontoon for installation, guidance, and rockfill |
| CN1299903A (en) * | 2000-10-30 | 2001-06-20 | 中国水利水电科学研究院 | Underwater drawing, arranging and constructing process |
| CN1442342A (en) * | 2002-03-06 | 2003-09-17 | 中港第三航务工程局 | Under water flexible raft laying engineering ship and under water flexible raft laying technology |
| CN101033614A (en) * | 2006-03-10 | 2007-09-12 | 天津港湾工程研究所 | Underwater vacuum prepressing reinforcement soft base technique method |
Non-Patent Citations (2)
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| 曹根祥等.长江口深水航道治理工程护底软体排施工成套工艺及设备的开发.水运工程.2006,(12),68-73. * |
| 陆梅兴.航道治理工程软体排铺设船与关键技术的研究.上海海运学院硕士学位论文.2003,全文. * |
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| CN101565934A (en) | 2009-10-28 |
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