CN104652403B - One geotextiles lapped layup method under water - Google Patents
One geotextiles lapped layup method under water Download PDFInfo
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- CN104652403B CN104652403B CN201510044300.4A CN201510044300A CN104652403B CN 104652403 B CN104652403 B CN 104652403B CN 201510044300 A CN201510044300 A CN 201510044300A CN 104652403 B CN104652403 B CN 104652403B
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- geotextiles
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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
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0085—Geotextiles
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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
One geotextiles lapped layup method under water, belongs to coastal engineering building construction technology.Due to the complexity of soft foundation, foundation bearing capacity unbalanced, geotextiles always occurs that ballast drifts about under water.The especially lap-joint two pieces of geotextiles always disconnects.This problem is difficult to effectively make up in engineering after continuous, buries hidden danger of quality.The present invention includes using GPS localization method, industrial PC screen real-time mark method, band acicular hook gang rope method and nail sandstone bag method.Making sandstone bag throw in precisely, effectively prevent the floating of geotextiles, curling, drift, make geotextile laying smooth-going under water and wrinkle resistant, the mutual clasp joint in edge is unified into a piece of, improves the quality of work efficiency and laying.Preferably resolve a difficult problem for geotextiles overlap joint under water.And there is location standard, error is little, and speed is fast, the feature that efficiency is high.
Description
Technical field
The present invention relates to geotextiles lay under water, belong to coastal engineering building construction technology.
Background technology
Geotextiles, also known as geotextile, it is by the synthetic fibers water penetration geosynthetics by acupuncture or braiding.
Geotextiles has outstanding filtration, draining, isolation, reinforcement, antiseepage, protective action, have lightweight, tensile strength is high,
Good penetrability, high temperature resistant, anti-freezing, ageing-resistant, corrosion-resistant.In soft base embankment project, geotextiles can be effectively isolated
The material of different physical properties, makes two or more storeroom not mix, and keeps overall structure and the function of material；Effectively will
Concentrated stress spreads, transmits or decompose, and reduces uneven settlement of foundation；Effectively increase tensile strength and the resistance ability of the soil body,
Strengthening the anti-shearing destruction of ground, therefore, geotextiles is extensively applied in seashore treatment of soft foundation.Rapid along with marine cause
Development, coastal engineering is developed to deep water direction by shallow water.Its construction also by land to shallow water, more to deep water transition.So
Geotextile laying technology is the most gradually paid close attention to by people under water.
In recent years, during this technology is applied to coastal engineering deep water deep soft soil treatment.Geotextile laying also exists the depth of water under water
Stream is anxious, stormy waves is big, with a varied topography, and the feature that ground is weak, these are all that deep water geotextile laying is brought difficulty.And exist
Subject matter be the floating drift of geotextiles, the overlap joint under water between geotextiles is unstable, cause work cloth by floating and fold,
The most washed away.Impact on efficiency of construction and laying quality is the biggest.The method in the past not having advanced person, always seashore work
Problem in the urgent need to address in journey.Chinese patent " underwater geotextile laying equipment " (ZL201020258420.7), is this
The achievement in research of the early stage of a person of good sense, is a kind of profundal zone or even the new construction equipment of abysmal area geotextile laying.Main research
Special earthwork cloth laying ship under water, is to solve safety work and raising efficiency of construction equipment under the complex working condition of deep-sea.In and
State's patent " geotextile laying method under water " (201210202475.X) is new technology and the new method of geotextile laying under water,
Solving under deep water complexity hydrologic condition, the construction equipment using geotextile laying new carries out the desired technique of unconventional construction and side
Method.Then, under water in the quality inspection of the laying of geotextiles, finding again a lot of problem, scientific and technological invention is exactly that relay is run,
Constantly pinpoint the problems and research and solve in problem, promoting scientific and technological progress.Due to the complexity of soft foundation, foundation bearing capacity is not
Equilibrium, geotextiles always occurs that ballast drifts about under water.Always there is the changing of the relative positions and discrepancy in the especially lap-joint two pieces of geotextiles.
And after finding this problem, be difficult to effectively make up in engineering, bury hidden danger of quality.The present invention is directed in early-stage Study
On the basis of, through research practice repeatedly, putting into engineer applied, effect is notable, solves geotextiles lapped layup method under water difficult
Topic.
Summary of the invention
The present invention is to solve above-mentioned technical barrier, it is ensured that the laying quality of geotextiles under water.Invent one geotextiles under water to take
Connect method, including using band acicular hook gang rope and nail sand bag method.
The technology of the present invention includes that operation field is measured, and installation apparatus positions, geotextiles sewing splicing, and geotextiles lifting is laid, sand
Stone bag is thrown in, and jackstone ballast is characterized in that:
A., according to operation field Measurement situation when industrial PC input related data, it is simultaneously entered the overlapping edges of adjacent geotextiles
Size, and the corresponding site laying ship corresponding on the screen of industrial PC carries out scale mark, as throwing in nail sandstone
The position of bag；
B., when geotextiles sewing splicing, geotextiles edge sewing one band acicular hook gang rope, as the overlap joint of two geotextiles under water
Hook；
C., before geotextile laying, band acicular hook gang rope is connected with the steel pipe grasp on the front end of geotextiles, is then rolled up
Being wound on cylinder, lifting is to operation ship；
D. equipped with the nail of band barb bottom the sandstone bag used by two geotextiles overlapping parts, and be placed on laying ship carry out labelling
Position, laying limit, limit throws in, and at non-overlapping position, the line space with 3～5m throws in sandstone bag, overlapping at two geotextiles overlap joints
On position, the line space with 1～3m throws in nail sandstone bag；Nail with barb pierces through two geotextiles overlapping parts, two-layer
Geotextiles is linked together
When E. laying next geotextiles, under the effect sinking to the bottom cylinder, the tartar that band acicular hook gang rope sets inserts geotextiles,
Tied with the mutual hook of barb, be unified into a piece of；
F. use during jackstone ballast particle diameter less than the metaling of 15cm, first to two geotextiles overlapping parts and geotextile laying
Throwing on edge placement, throwing is whole the most again has laid district.
The overlapping edges of described geotextiles is the position of the two geotextiles overlaps adjacent when laying, and two width geotextiles are at crossover region
Lap width should be greater than 30～80cm, be coated with face ground the weakest more take high level.
Described overlap joint hook uses band acicular hook gang rope, is also called barbed wire, thorn rope, among the people is commonly called as barbed wire.Bifilar or multiply
Thorn rope is twisted volume formed by thorn rope machine, barb spacing between 15～60cm, sting a length of laid geotextiles thickness 3～6 times, Ci Toushang
With barb.When geotextiles sewing splicing, sew the edge in geotextiles.
Equipped with the nail of band barb, referred to as nail sandstone bag bottom described sandstone bag, it is equipped at least with one bottom sandstone bag
The nail of individual band barb, 3～6 times of a length of the laid geotextiles thickness of nail, suitable for reading at cloth bag loads onto float.It is deposited in
Lay on ship standby, be specifically designed to two geotextiles overlapping parts.
Advantages of the present invention
Be band acicular hook gang rope owing to using one overlap joint hook of geotextiles edge sewing, and before geotextile laying, band acicular hook gang rope with
Steel pipe grasp on the front end of geotextiles is connected.During geotextile laying, the surrounding in geotextiles all has protection,
Do not result in geotextiles curling drift again.After geotextile laying, nail penetrates geotextiles, with barb in nail head.Make two
Geotextiles phase clasp joint, no longer removes.
Owing to using the corresponding site laying ship corresponding on the industrial PC screen of GPS location to carry out scale mark, and in advance
Nail sandstone bag is placed on laying ship and carries out the position of labelling.Make sandstone bag throw in precisely, improve work efficiency.
Owing to using the upper band acicular hook gang rope with barb of tartar, barb spacing, between 15～60cm, stings a length of laid geotextiles thickness
3～6 times of degree.The mutual clasp joint in edge making geotextiles under water is unified into a piece of.
Owing to using at non-overlapping position the line space with 3～5m to throw in sand bag, overlap in crossover position in two geotextiles, nail sand
The line space of stone bag 1～3m throws in nail sand bag.When throwing particle diameter is less than the metaling of 15cm, first to two geotextiles overlap joints
Throwing on the paving location of position, makes two-layer geotextiles be linked together.Effectively prevent the floating drift of geotextiles, make geotextiles
Lay smooth-going and wrinkle resistant.
The present invention can be guaranteed in the depth of water 2～20m, flow velocity 0～3m/s, tidal range≤9m, wind-force≤7 grade, the wave≤environment of 2 grades
Stable construction, all weather operations, ensure the quality laid.And there is location standard, error is little, and speed is fast, and efficiency is high
Feature.
Accompanying drawing explanation
Fig. 1 is sandstone bag layout drawing, and Fig. 2 is the nail state diagram of the bottom installation band acicular hook of sandstone bag, and Fig. 3 is geotechnological under water
Cloth overlap joint figure, Fig. 4 is band acicular hook gang rope Local map.Including: float 1, band 2, sand material 3, woven bag 4, sheet iron
5, nail 6, suture 7, band acicular hook gang rope 8, geotextiles 9, soft base 10, bifilar thorn rope 11, barbed wire 12, tartar 13.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is further illustrated.
Embodiment 1: certain embankment project is that inland rivers port area grows the most complete, largest Tidal Flat Resources.Last 100 years
Constantly slowly to deposit extension, deposits deep mud and silt clay and fine powder chiltern soil layer, the long 16.5k of present beach face
M, wide 4.5km, gradient 0.4～10.68 ‰, more than mean tide tlevel, there are 3.2 ten thousand mu, other are all below mean tide tlevel.
Sea wall dike line is always about 18.5km, total cost 6.6 hundred million, and levee body structure is jackstone embankment structure, and it is flat that dike both sides set 1～2 grade of suppression
Platform, dike both sides side slope uses top layer boulder, fills building block stone and concrete profiled block pavement structure.Levee body based process uses geotechnique
Cloth adds the composite consolidation method of blotter and plastic draining, and combines ballast processing method.This engineering levee foundation uses geotextile laying
Sector width is 36～98m.Lay district maximum water depth 18.6m, flow velocity 2.6m/s, tidal range 6.1m.Owing to engineering is located in edge, the southeast
Haiti district, 6～8 grades of strong wind are regular weather, and stormy waves is big.Harsh environmental conditions, the impact on geotextile laying quality is bigger.
In order to ensure laying quality, improve work efficiency, use geotextiles lapped layup method under water.
Construction equipment: hull system non-boat formula disjunctor basement process operation ship, overall length 36m, beam overall 12m, moldeed depth 3.0m, eats
Water depth is 1.6m, and displacement is 300t, joins Horizontal electronic windlass and the Hall of 400kg of 5t about bow tail deck
Each 4 of anchor, anchor cable uses φ 22.5mm, and the steel wire rope of 200m × 4, as mobile device and the job platform of ship.
Alignment system: geotextile laying machine is placed on operation ship, can carry out vertical and horizontal at construction area and move.Waterborne fixed
Position device uses advanced GPS real-time requiring system, is made up of 3 high-precision GPSs.This system carries out full-computerized
Operation, not only receives information fast, and is not affected by weather, stormy waves, can be at round-the-clock positioning operation.
Nail sandstone packs work: nail 6 of burn-oning on the sheet iron 5 of one piece of triangle, a length of 2.5cm of nail 6, nail 6
On with barb.Nail 6 penetrates woven bag 4 down, and is fixed on the bottom of woven bag 4 with suture 7 line；It is less than with particle diameter
The sand material 3 of 5cm seals after 25kg loads cloth bag altogether；Suitable for reading at cloth bag loads onto a floater of foam 1；Then with pricking
Band 2 ties bag mouth.Multiple sandstone bags are deposited on laying ship standby.The nail sandstone bag that said method does is deposited on laying ship；
With support vessel, the sandstone bag of suppression geotextiles is loaded by sandstone contracted affreightment to laying ship together the opposite side of laying ship.
Geotextiles 9 sewing splicing: on land the geotextiles 9 of single width width 5 meters is sewed, be spliced into width 25 ±
0.5m, length is 36～98m.Band acicular hook gang rope 8 is sewed in the two edges of geotextiles 9.Then it is wound on cylinder,
Side seam limit winds, in case the bending fold that geotextiles 9 is in winding process；Cut off by design length, and in geotextiles 9
The steel pipe of a piece a diameter of 90cm and 4 grasps are installed on external end head, band acicular hook gang rope 8 with on the front end of geotextiles 9
Steel pipe grasp is connected.Band acicular hook gang rope 8 uses bifilar thorn rope 11, fixes barbed wire 12 at a distance of 40cm.Barbed wire 12
It is provided with tartar 13, stings a length of 2cm, with two-sided barb on tartar 13.
Use and sink to the bottom the way that cylinder launches at the bottom to pave, carry out geotextiles 9 under water and lay.During operation, fixed after opening computer
Position system starts, multiple satellite-signals are through fore gps antenna, fore GPS, through stern gps antenna, ship
Tail GPS enters industrial PC.The base station signal that movement station communication antenna receives simultaneously is by receiving radio station input industry control
Computer.The location windlass of the corner laying ship is controlled by positioner, and various signals are resolved by industrial PC, and use one
The folding and unfolding of set four anchor hawsers of working software reed time controll, adjusts the position that boats and ships are correct.On computers by the design good institute of setting coordinate
The construction area of geotextiles 9 need to be laid, show on screen in operation process ballast district, lay district, lay district,
Do not lay district and crossover region, use different colours to mark in real time.It is simultaneously entered overlapping edges size 50cm of adjacent geotextiles, and
The corresponding site laying ship corresponding on the screen of industrial PC carries out scale mark.Used by two geotextiles 9 overlapping parts
Equipped with the nail 6 of band barb bottom sandstone bag, and it is placed on and lays ship and carry out the position of labelling；Reality according to every width geotextiles 9
Border size and construction area plane of arrangement divide the cell plane construction drawing of every width geotextiles 9, show ship by computer screen
The position and attitude laying district cell that body sets, then carry out hull with 4 windlass and move accommodation, make hull sideline, location and set
Cell lattice are laid district and are initiateed sideline coincidence, illustrate that hull accurate positioning can carry out laying operation.
Laying after ship positionning, put down cylinder to painting face, geotextiles 9 grasp is pricked into soft base 10 mash, and front two anchor hawsers tighten up, and rear two
Anchor hawser loosens, and lays ship and slowly advances, and geotextiles 9 is being coated with drawout on thin-skinned base 10, and then sandstone bag puts down, and is uniformly pressed in
In geotextiles 9, first paving location completes.Promote and lay cylinder, move to second paving location laying ship, carry out
The laying of next width geotextiles 9.When laying second geotextiles 9, under the effect sinking to the bottom cylinder, on the both sides of geotextiles 9
The tartar 13 set on the barbed wire 12 of edge, is mutually inserted, and upper and lower two-layer geotextiles 9 is tied with the mutual hook of barb, is unified into one
Sheet.Sand bag is thrown in the line space of 4m in non-overlapping position, overlaps in crossover position in two geotextiles 9, nail sandstone bag 2m it
Line space is thrown in.
When nail sandstone bag sink to two geotextiles 9 overlap crossover position time, not only press geotextiles 9, and nail 6 be down
Penetrate geotextiles 9, with barb on nail 6.Two geotextiles 9 are made no longer to remove.
When laying ship and moving to the 3rd paving location, it is less than 15 centimetres with split barge throwing particle diameter on first paving location
Metaling, when throwing particle diameter is less than the metaling of 15 centimetres, first to two geotextiles 9 overlapping parts and geotextile laying
Throwing on edge placement, throwing is whole the most again has laid district.So moved in circles geotextile laying under water.
Claims (3)
1. a geotextiles lapped layup method under water, measures including operation field, and installation apparatus positions, geotextiles sewing splicing,
Geotextiles lifting is laid, and sandstone bag is thrown in, and jackstone ballast is characterized in that:
A., according to operation field Measurement situation when industrial PC input related data, it is simultaneously entered the overlapping edges of adjacent geotextiles
Size, and the corresponding site laying ship corresponding on the screen of industrial PC carries out scale mark, as throwing in nail sandstone
The position of bag；
B., when geotextiles sewing splicing, geotextiles edge sewing one band acicular hook gang rope, as the overlap joint of two geotextiles under water
Hook；
C., before geotextile laying, band acicular hook gang rope is connected with the steel pipe grasp on the front end of geotextiles, is then rolled up
Being wound on cylinder, lifting is to operation ship；
D. equipped with the nail of band barb bottom the sandstone bag used by two geotextiles overlapping parts, and be placed on laying ship carry out labelling
Position, laying limit, limit throws in, and at non-overlapping position, the line space with 3～5m throws in sandstone bag, overlapping at two geotextiles overlap joints
On position, the line space with 1～3m throws in nail sandstone bag；Nail with barb pierces through two geotextiles overlapping parts, two-layer
Geotextiles is linked together；
When E. laying next geotextiles, under the effect sinking to the bottom cylinder, the tartar that band acicular hook gang rope sets inserts geotextiles,
Tied with the mutual hook of barb, be unified into a piece of；
F. use during jackstone ballast particle diameter less than the metaling of 15cm, first to two geotextiles overlapping parts and geotextile laying
Throwing on edge placement, throwing is whole the most again has laid district.
2. one geotextiles lapped layup method under water as claimed in claim 1, is characterized in that: overlap joint hook uses band acicular hook guiding principle
Restricting, bifilar or multiply thorn rope is twisted volume by thorn rope machine and is formed, and barb spacing, between 15～60cm, stings a length of laid geotextiles thickness
3～6 times, tartar is upper with barb, when geotextiles sewing splicing, sews the edge in geotextiles.
3. one geotextiles lapped layup method under water as claimed in claim 1, is characterized in that: nail sandstone bag is at sandstone
Equipped at least with the nail of a band barb bottom bag, 3～6 times of a length of the laid geotextiles thickness of nail, suitable for reading at cloth bag
Load onto float, be specifically designed to two geotextiles overlapping parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044300.4A CN104652403B (en) | 2015-01-28 | 2015-01-28 | One geotextiles lapped layup method under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044300.4A CN104652403B (en) | 2015-01-28 | 2015-01-28 | One geotextiles lapped layup method under water |
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| CN104652403A CN104652403A (en) | 2015-05-27 |
| CN104652403B true CN104652403B (en) | 2016-08-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105862670A (en) * | 2016-04-01 | 2016-08-17 | 陆振富 | Riverway ecological grid laying method and riverway |
| CN111058452B (en) * | 2019-12-25 | 2021-07-30 | 中交第一航务工程局有限公司 | Offshore underwater geotextile spreading tool and use method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1019915C (en) * | 1990-03-11 | 1993-02-17 | 山西省交通厅 | Device of automatically laying rollers for preventing flushing |
| RU2165495C1 (en) * | 1999-12-17 | 2001-04-20 | Закрытое акционерное общество "НЕЙРОКОМ" | Method for checking characteristics of liquid column in the course of its production |
| CN101041954A (en) * | 2007-04-17 | 2007-09-26 | 张志铁 | Large-area soft foundation soil bag and foundation trench composite consolidation method |
| CN100516374C (en) * | 2007-06-15 | 2009-07-22 | 河海大学 | Movable feeding and constructing method for dynamic reinforcing surface layer of large area flabbiness foundation |
| CN201785741U (en) * | 2010-07-13 | 2011-04-06 | 红阳建设集团有限公司 | Underwater geotextile laying equipment |
| CN103485308B (en) * | 2012-06-09 | 2015-06-10 | 浙江科技学院 | Underwater geotextile fabric laying method |
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Effective date of registration: 20200103 Address after: 315040 4th Floor, 1009 Guangxian Road, Ningbo High-tech Zone, Zhejiang Province Patentee after: Ningbo High-Tech Zone, Sea-Closure Engineering Technology Development Co., Ltd. Address before: 310023 C2-403, No. 318 ho Wan Road, Zhejiang, Hangzhou Patentee before: Zhejiang Institute of Science and Technology |
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