CN105274980A - Geotextile laying method for soft foundation treatment construction of dredger fill area - Google Patents
Geotextile laying method for soft foundation treatment construction of dredger fill area Download PDFInfo
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- CN105274980A CN105274980A CN201510685246.1A CN201510685246A CN105274980A CN 105274980 A CN105274980 A CN 105274980A CN 201510685246 A CN201510685246 A CN 201510685246A CN 105274980 A CN105274980 A CN 105274980A
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Abstract
The invention discloses a geotextile laying method for soft foundation treatment construction of a dredger fill area. The method comprises the steps that a winch is arranged on a sub-cofferdam beside a construction plant; multiple rolls of geotextile are conveyed to the plant and are bundled and then conveyed to more than one floating mat, and the floating mats are self-propelled floating mats with engines; and the winch drags the geotextile, workers move to the other side of the construction plant by riding the floating mats, and the winch drags the geotextile to lay the geotextile on a muddy surface of the construction plant. According to the geotextile laying process method for the special condition of soft foundation treatment construction of the dredger fill area of an area adjacent to the sea, the self-propelled floating mats are adopted, and the winch is used for dragging the geotextile, so that the efficiency of the geotextile laying procedure and construction safety are greatly improved.
Description
Technical field
The present invention relates to hydraulic reclamation district technical field of construction, particularly a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment.
Background technology
Hydraulic reclamation subsurface work acceptance comprises measures mud face elevation and sampling measured moisture content.According to site operation requirement, be control hydraulic reclamation effect, after hydraulic reclamation completes General Requirements at least within the scope of the 1m of top layer water content not higher than 90%.But when it come to adjoin sea region, soil layer is just just different with the construction requirement of other landforms under water for it.Such as " Tianjin Binhai barged-in fill " is just pointed out, the genus North China Plain, Nan Gang industrial occupancy, Tianjin littoral land form, and its top layer mostly is the weak sedimentary deposit of typical case's littoral facies in the Quaternary Period.Underwater topography is relatively mild, and elevation is-3.22 ~-4.06 meters.Each clay distribution is more regular, and elevation at the bottom of mud is-8.22m ~-10.06m, and elevation at the bottom of silt clay layer is-11.80 ~-13.05m, and its average SPT blow count N is all less than 1.Because this kind of engineering treatment of soft foundation plot shale is basin mud, form land-based area place through waterpower hydraulic reclamation, and carry out according to the segmentation of soil layer situation.Two bid sections are divided in the land-based area place of such as Tianjin Nan Gang industrial occupancy, and a bid section needs hydraulic reclamation amount 1339.79 ten thousand m
3, land reclamation area 187.1 ten thousand m
2, hydraulic reclamation top mark height is 6.1m, basement process area about 78.3 ten thousand m
2; Two bid sections need hydraulic reclamation amount 2115.78 ten thousand m
3, land reclamation area 245.3 ten thousand m
2, hydraulic reclamation top mark height is 6.2m, basement process area about 116.2 ten thousand m
2.Once the duration is tight, namely hydraulic reclamation district carries out shallow layer soft ground process without airing, surface layer is handed over to be generally mud scum and mud, the moisture content of surface layer 1m scope is handed over to be about about 110%, intensity and bearing capacity are extremely low, when constructor carries out every operation thereon, easily fall into mud, there is very large potential safety hazard.In addition, horizontal plastic draining board must separate with the mud scum under it with drainage pipe pipeline, avoids vacuumizing period mud shutoff drainage channel, guarantees shallow-layer process consolidation effect.Suppose to need to lay one deck 200g/m in mud face
2braided geotextile, then lays one deck 300g/m
2geotechnique's non-woven fabrics, and then carry out artificial plate operation, traditional handicraft adopts worker stands on cystosepiment, carry out the laying of geotextile with bamboo pole.But the number of workers that traditional handicraft laying geotextile needs is more, and the efficiency of workman's laying geotextile is on the low side, will certainly increase construction cost, affect construction speed, and workman during operation, easily falls into mud on cystosepiment, there is very big potential safety hazard.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment.
The technical solution adopted for the present invention to solve the technical problems is:
For a geotextile laying method for hydraulic reclamation region construction of soft soil treatment, step comprises,
1) hoist engine is arranged in the embankment on limit on construction ground;
2) geotextile cloth is transported to place, is transported on more than one floating mat by bundled for the geotextile cloth of multireel, wherein said floating mat is the self-propelled floating mat carrying motor;
3) hoist engine traction geotextile cloth, workman takes advantage of floating mat to move to the opposite side of construction plant, and hoist engine traction geotextile cloth makes geotextile cloth be laid on the mud face of construction plant;
4) after a volume geotextile cloth has been laid, the corner of described geotextile cloth flattens by workman, makes described geotextile cloth entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth;
6) move the position that described hoist engine and geotextile cloth stack, repeat above-mentioned paving mode, until treatment of soft foundation region is laid complete.
As a preference, described step 2) in geotextile cloth be five volumes.
As a preference, described step 2) in the number of floating mat be three.
As a preference, the suture zone width in described step 5) after the stitching of geotextile cloth is 95mm ~ 110mm.
As a preference, in described step 3), the speed of service of floating mat is for being less than or equal to 10km/h.
As a preference, described step 2) in the length of geotextile cloth be 55 ~ 65m, width is 33 ~ 39m, and the aspect ratio of wherein said geotextile cloth is 5:3.
A kind of floating mat laid for hydraulic reclamation region construction of soft soil treatment geotextile, described floating mat comprises the angle bar skeleton be made up of angle bar rod and the cystosepiment being arranged in angle bar skeleton, wherein said angle bar skeleton is cuboid, the cystosepiment at described angle bar skeleton side place rearward has cavity, motor and gearshift device is provided with in described cavity, wherein said motor and angle bar frame welding, the rear end of described angle bar skeleton is provided with zigzag screw rod, proceeds posterolateral under angle bar skeleton is stretched to through cystosepiment in the lower end of wherein said zigzag screw rod, the lower end of described zigzag screw rod is connected with screw and rudder plate in turn.
As a preference, the long 70cm of described angle bar rod, wide 10cm, the length of described angle bar skeleton is 3 ~ 4.5m, and wide is 1.5 ~ 2.25m, and thick is 0.2 ~ 0.5m, and the aspect ratio of wherein said angle bar skeleton is 2:1.
The invention has the beneficial effects as follows: this geotextile laying process method is for the special circumstances of hydraulic reclamation region construction of soft soil treatment adjoining sea region, adopt the floating mat of self-propelled to add the method for hoist engine traction geotextile step, substantially increase efficiency and working security that geotextile lays operation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is process schematic representation of the present invention;
Fig. 2 is the stereogram of floating mat in the present invention.
Specific embodiment
In order to make the object of the application, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.For thorough understanding the present invention, some specific detail can be related in ensuing description.And when not having these specific detail, the present invention then may still can realize, those of skill in the art namely use the work that these describe and statement effectively introduces them to the others skilled in the art in affiliated field herein essential.Should be appreciated that specific embodiment described herein only in order to explain the application, and be not used in restriction real protection scope.And for avoiding confusion object of the present invention, because the embankment construction method, circuit program, geotextile cloth 2 material etc. known is readily appreciated that, therefore they are not described in detail.With reference to Fig. 1, a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment, step comprises,
1) hoist engine 1 is arranged in the embankment on limit on construction ground;
2) geotextile cloth 2 is transported to place, is transported on more than one floating mat 4 by bundled for the geotextile cloth 2 of multireel, wherein said floating mat 4 is for carrying the self-propelled floating mat of motor, and namely the geotextile cloth 2 of multireel gets togather at processing place inseam in advance;
3) hoist engine 1 draws geotextile cloth 2, and workman takes advantage of floating mat 4 to move to the opposite side of construction plant, and hoist engine 1 draws geotextile cloth 2 makes geotextile cloth 2 be laid on the mud face of construction plant, namely in treatment of soft foundation district 3;
4) after a volume geotextile cloth 2 has been laid, the corner of described geotextile cloth 2 flattens by workman, makes described geotextile cloth 2 entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth 2, and namely the centre position specifically sewing up woven cloth and woven cloth sewed up by two-wire;
6) move the position that described hoist engine 1 stacks with geotextile cloth 2, repeat above-mentioned paving mode, until territory, treatment of soft foundation district 3 is laid complete.
Geotextile cloth 2 in described step 2 is five volumes, and the number of geotextile cloth 2 too much significantly can affect the speed that floating mat 4 tows.
In described step 2, the number of floating mat 4 is three, the number of floating mat 4 is too much, there will be floating mat 4 route and coordinate disunity not, cause geotextile cloth 2, drop, even floating mat 4 topples, and number is crossed that I haven't seen you for ages and caused in the middle of geotextile cloth 2 and occurs that depression even falls into mud face, cause laying unsuccessfully.
Suture zone width in described step 5 after geotextile cloth 2 stitching is 95mm ~ 110mm, wherein the width excessive material usage that will cause in suture zone is wasted, added cost, and too small easily causing under subsequent construction impact is torn and the mass defect that road work under security incident or impact continues construction occurs.
In described step 3, the speed of service of floating mat 4 is for being less than or equal to 10km/h, and speed is crossed can affect construction speed slowly.But excessive velocities have can because affect floating mat and floating mat and on the bank hoist engine matching problem and affect the planeness of arranging.
In described step 2, the length of geotextile cloth 2 is 55 ~ 65m, width is 33 ~ 39m, the aspect ratio of wherein said geotextile cloth 2 is 5:3, geotextile cloth 2 is oversize will increase difficulty of construction, too smallly construction speed can be affected, the especially improper control that can affect geotextile cloth 2 planeness of the aspect ratio of geotextile cloth 2.
Another kind of embodiment, with reference to Fig. 1, a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment, wherein alleged herein " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the application.Different local in this manual " in the embodiment " occurred not all refers to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.Treatment of soft foundation district 3 area 12m × 100m that embodiment relates to, step comprises,
1) hoist engine 1 is arranged in the embankment on limit on construction ground;
2) geotextile cloth 2 is transported to place, is transported on the floating mat 4 of three by bundled for the geotextile cloth 2 of five volumes, wherein said floating mat 4 is for carrying the self-propelled floating mat of motor;
3) hoist engine 1 draws geotextile cloth 2, and workman takes advantage of floating mat 4 to move to the opposite side of construction plant, and wherein the speed of service of floating mat 4 is that 4km/h hoist engine 1 draws geotextile cloth 2 and makes geotextile cloth 2 be laid on the mud face of construction plant;
4) after a volume geotextile cloth 2 has been laid, the corner of described geotextile cloth 2 flattens by workman, makes described geotextile cloth 2 entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth 2, and wherein suture zone width is 95mm;
6) move the position that described hoist engine 1 stacks with geotextile cloth 2, repeat above-mentioned paving mode, until territory, treatment of soft foundation district 3 is laid complete.
Another kind of embodiment, with reference to Fig. 1, a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment, the treatment of soft foundation district 3 area 24m × 200m related to, step comprises,
1) hoist engine 1 is arranged in the embankment on limit on construction ground;
2) geotextile cloth 2 is transported to place, is transported on the floating mat 4 of four by bundled for the geotextile cloth 2 of five volumes, wherein said floating mat 4 is for carrying the self-propelled floating mat of motor;
3) hoist engine 1 draws geotextile cloth 2, and workman takes advantage of floating mat 4 to move to the opposite side of construction plant, and wherein the speed of service of floating mat 4 is that 7km/h hoist engine 1 draws geotextile cloth 2 and makes geotextile cloth 2 be laid on the mud face of construction plant;
4) after a volume geotextile cloth 2 has been laid, the corner of described geotextile cloth 2 flattens by workman, makes described geotextile cloth 2 entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth 2, and wherein suture zone width is 100mm;
6) move the position that described hoist engine 1 stacks with geotextile cloth 2, repeat above-mentioned paving mode, until territory, treatment of soft foundation district 3 is laid complete.
Another kind of embodiment, with reference to Fig. 1, a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment, the treatment of soft foundation district 3 area 36m × 300m related to, step comprises,
1) hoist engine 1 is arranged in the embankment on limit on construction ground;
2) geotextile cloth 2 is transported to place, is transported on the floating mat 4 of five by bundled for the geotextile cloth 2 of five volumes, wherein said floating mat 4 is for carrying the self-propelled floating mat of motor;
3) hoist engine 1 draws geotextile cloth 2, and workman takes advantage of floating mat 4 to move to the opposite side of construction plant, and wherein the speed of service of floating mat 4 is that 10km/h hoist engine 1 draws geotextile cloth 2 and makes geotextile cloth 2 be laid on the mud face of construction plant;
4) after a volume geotextile cloth 2 has been laid, the corner of described geotextile cloth 2 flattens by workman, makes described geotextile cloth 2 entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth 2, and wherein suture zone width is 110mm;
6) move the position that described hoist engine 1 stacks with geotextile cloth 2, repeat above-mentioned paving mode, until territory, treatment of soft foundation district 3 is laid complete.
With reference to Fig. 2, a kind of floating mat laid for hydraulic reclamation region construction of soft soil treatment geotextile, described floating mat 4 comprises the angle bar skeleton 5 be made up of angle bar rod and the cystosepiment 6 being arranged in angle bar skeleton 5, wherein said angle bar skeleton 5 is cuboid, the angle bar skeleton 5 of angle bar rod composition is adopted to design, not only assembling is simple, and the skeleton that stabilized structure degree forms than the truss, fly rod etc. in past is good, especially can ensure that the situations such as displacement do not appear in the cystosepiment 6 in angle bar skeleton 1.The cystosepiment 6 at described angle bar skeleton 5 side place rearward has cavity, and be provided with motor 51 and gearshift device 52 in described cavity, wherein said motor 51 welds with angle bar skeleton 5, and ensure the stable degree of motor 51, concrete motor 51 can adopt diesel-driven generator.The rear end of described angle bar skeleton 5 is provided with zigzag screw rod 7, angle bar skeleton 5 times proceeds posterolateral are stretched to through cystosepiment 6 in the lower end of wherein said zigzag screw rod 7, the lower end of described zigzag screw rod 7 is connected with screw 71 and rudder plate 72 in turn, namely the upper part of zigzag screw rod 7 supplies operating personnel as handlebar, the end portion of zigzag screw rod 7 then coordinates motor 51 to realize the movement of floating mat, therefore between zigzag screw rod 7 and floating mat for being rotatably connected.As a preference, the long 70cm of described angle bar rod, wide 10cm, the length of described angle bar skeleton 5 is 3 ~ 4.5m, and wide is 1.5 ~ 2.25m, and thick is 0.2 ~ 0.5m, and the aspect ratio of wherein said angle bar skeleton 5 is 2:1, ensures that floating mat 4 is enough stable.
According to above-mentioned principle, the present invention can also carry out suitable change and amendment to above-described embodiment.Therefore, the present invention is not limited to specific embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.
Through facts have proved, because the moisture content in the hydraulic reclamation district adjoining sea area is higher, walking becomes possibility in mud face to make floating mat 4, project management department adopts the floating mat 4 of self-propelled to add hoist engine 1 according to this situation and draws geotextile cloth 2 laying process method, and this process substantially increases efficiency and the working security that operation laid by geotextile cloth 2.Geotextile cloth 2 laying speed and geotextile cloth 2 on mud face is driven to sew up the longer restriction of overlap joint time used according to the rope traction floating mat 4 of hoist engine 1.Such as this laying process is often organized floating mat 4 and is coordinated a hoist engine 1 to lay 36m × 300m hydraulic reclamation district area to need used time 64min, then can lay hydraulic reclamation district area every day is 75600m
2, often group needs 12 workmans; And traditional handicraft laying geotextile cloth 2, often group needs workman 50 people, and every day can complete 30000m
2laying work, it can thus be appreciated that the innovation process substantially increases the efficiency that operation laid by geotextile cloth 2.
Claims (8)
1., for a geotextile laying method for hydraulic reclamation region construction of soft soil treatment, it is characterized in that: step comprises,
1) hoist engine (1) is arranged in the embankment on limit on construction ground;
2) geotextile cloth (2) is transported to place, be transported on more than one floating mat (4) by bundled for the geotextile cloth (2) of multireel, wherein said floating mat (4) is for carrying the self-propelled floating mat of motor;
3) hoist engine (1) traction geotextile cloth (2), workman takes advantage of floating mat (4) to move to the opposite side of construction plant, and hoist engine (1) traction geotextile cloth (2) makes geotextile cloth (2) be laid on the mud face of construction plant;
4) after a volume geotextile cloth (2) has been laid, the corner of described geotextile cloth (2) flattens by workman, makes described geotextile cloth (2) entirely be laid on the mud face of construction plant;
5) workman adopts two-wire sewing to overlap two pieces of geotextile cloth (2);
6) move the position that described hoist engine (1) stacks with geotextile cloth (2), repeat above-mentioned paving mode, until treatment of soft foundation region is laid complete.
2. a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment according to claim 1, is characterized in that: described step 2) in geotextile cloth (2) be five volumes.
3. a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment according to claim 1, is characterized in that: described step 2) in the number of floating mat (4) be three.
4. a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment according to claim 1, is characterized in that: the suture zone width in described step 5) after geotextile cloth (2) stitching is 95mm ~ 110mm.
5. a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment according to claim 1, is characterized in that: in described step 3), the speed of service of floating mat (4) is for being less than or equal to 10km/h.
6. a kind of geotextile laying method for hydraulic reclamation region construction of soft soil treatment according to claim 1, it is characterized in that: described step 2) in the length of geotextile cloth (2) be 55 ~ 65m, width is 33 ~ 39m, and the aspect ratio of wherein said geotextile cloth (2) is 5:3.
7. the floating mat laid for hydraulic reclamation region construction of soft soil treatment geotextile, it is characterized in that: described floating mat (4) comprises the angle bar skeleton (5) be made up of angle bar rod and the cystosepiment (6) being arranged in angle bar skeleton (5), wherein said angle bar skeleton (5) is cuboid, the cystosepiment (6) at described angle bar skeleton (5) side place rearward has cavity, motor (51) and gearshift device (52) is provided with in described cavity, wherein said motor (51) welds with angle bar skeleton (5), the rear end of described angle bar skeleton (5) is provided with zigzag screw rod (7), proceeds posterolateral under angle bar skeleton (5) is stretched to through cystosepiment (6) in the lower end of wherein said zigzag screw rod (7), the lower end of described zigzag screw rod (7) is connected with screw (71) and rudder plate (72) in turn.
8. a kind of floating mat laid for hydraulic reclamation region construction of soft soil treatment geotextile according to claim 7, it is characterized in that: the long 70cm of described angle bar rod, wide 10cm, the length of described angle bar skeleton (5) is 3 ~ 4.5m, wide is 1.5 ~ 2.25m, thick is 0.2 ~ 0.5m, and the aspect ratio of wherein said angle bar skeleton (5) is 2:1.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106968233A (en) * | 2017-03-29 | 2017-07-21 | 中交烟台环保疏浚有限公司 | Geotechnical fibre filter layer construction technology |
| CN110106831A (en) * | 2019-06-11 | 2019-08-09 | 汪磊 | A kind of novel screw type geotextile tube bag and preparation method thereof |
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| CN201785741U (en) * | 2010-07-13 | 2011-04-06 | 红阳建设集团有限公司 | Underwater geotextile laying equipment |
| CN204401594U (en) * | 2014-12-17 | 2015-06-17 | 中交天航滨海环保浚航工程有限公司 | A kind of floating mat device for laying geotextile |
| CN205098420U (en) * | 2015-10-20 | 2016-03-23 | 中国铁建港航局集团有限公司 | Be applied to floating mat of hydraulic reclamation acceptance of project work |
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| KR100652545B1 (en) * | 2005-10-14 | 2006-12-01 | (주)지티이건설 | Engineering fiber for soft ground of dredging operations and installation method of it |
| CN201785741U (en) * | 2010-07-13 | 2011-04-06 | 红阳建设集团有限公司 | Underwater geotextile laying equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106968233A (en) * | 2017-03-29 | 2017-07-21 | 中交烟台环保疏浚有限公司 | Geotechnical fibre filter layer construction technology |
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| CN105274980B (en) | 2017-11-03 |
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