CN110409407B - Laying process of earthwork cloth below high-pile wharf - Google Patents
Laying process of earthwork cloth below high-pile wharf Download PDFInfo
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- CN110409407B CN110409407B CN201910624032.1A CN201910624032A CN110409407B CN 110409407 B CN110409407 B CN 110409407B CN 201910624032 A CN201910624032 A CN 201910624032A CN 110409407 B CN110409407 B CN 110409407B
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- 239000004744 fabric Substances 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004746 geotextile Substances 0.000 claims abstract description 166
- 239000004576 sand Substances 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 61
- 239000010959 steel Substances 0.000 claims description 61
- 239000004677 Nylon Substances 0.000 claims description 45
- 229920001778 nylon Polymers 0.000 claims description 45
- 238000005096 rolling process Methods 0.000 claims description 42
- 238000003825 pressing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000003892 spreading Methods 0.000 claims description 9
- 229910001087 A-4 tool steel Inorganic materials 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005188 flotation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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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
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/068—Landing stages for vessels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Revetment (AREA)
Abstract
The invention provides a laying process of earthwork cloth below a high-pile wharf, which is characterized by comprising the following steps of: cutting; (II) preparing in the early stage; (III) positioning; fourthly, laying a geotextile roll; and (V) laying lap joint cloth rolls. The invention adjusts the sequence of pile sinking and geotextile laying, and then lays geotextile under the wharf after pile sinking is finished, thereby effectively solving the defects; in addition, the sand bags are pressed while the geotextile rolls and the lap joint yardage rolls are paved, so that the geotextile is more smooth and difficult to move, and the paving effect is better.
Description
Technical Field
The invention relates to the technical field of geotextile laying, in particular to a laying process of geotextile below a high-pile wharf.
Background
At present, the earthwork cloth under the high-pile wharf is paved by multiple methods during dredging and slope repairing, and then pile sinking and stone throwing construction are carried out, but the paving method has the following defects: (1) the operation area required by the overwater pile sinking operation ship is large, the pile sinking operation is limited by the laying speed of the geotextile, and the pile sinking operation can be carried out after the geotextile is laid along the bank slope and the width of 150 plus 200 meters; (2) the interval from the completion of the laying of the geotextile to the ballast of the riprap is long (can be carried out after the pile sinking is finished), the geotextile is dispersed by the submarine water flow, and the geotextile above the water surface on the bank is exposed to the sun for a long time and is easy to age; (3) when the pile is sunk, the pile tip penetrates through the rear part of the geotextile and can be sunk under the mud surface, and the geotextile is easy to slide, tear and the like in the process; (4) when the pile is sunk, the pile position is easy to deviate when the pile position is just positioned on bagged broken stones or other cloth pressing stones of cloth pressing; therefore, a new process for laying geotextiles is urgently needed to solve the above problems.
Disclosure of Invention
The invention provides a laying process of earthwork cloth under a high-pile wharf aiming at the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme: the laying process of the earthwork cloth under the high-pile wharf is characterized by comprising the following steps of:
cutting: the geotextile is manufactured in two forms, one is a geotextile roll among odd-number racks; one is a lap joint cloth roll between two adjacent geotechnical cloth rolls;
(II) preparing in the early stage: the geotextile roll is unfolded on the ground, round holes are cut at two steel piles at the positions corresponding to the even pile positions of the G row and the B row according to the drawing size, two nylon ropes with the length of 20m are adopted to fasten two corners at one end of the geotextile roll, the other ends of the two nylon ropes are tied on a cloth rolling roller, and then the cloth rolling roller is rotated to roll the geotextile roll on the cloth rolling roller in order;
(III) positioning: placing the cloth rolling shaft on a positioning buoy, dragging the positioning buoy to the front edge of a wharf to be parked, and fixing the rear edge of the positioning buoy in parallel to a parking square barge, wherein the parking square barge is fixed by four anchor cables which are arranged in a splayed manner;
and (IV) laying geotextile rolls:
after the positioning of A1 is finished, firstly, a nylon rope with the length of 50m is adopted to fasten the other end of the geotextile roll, then a spreading person takes a tugboat to send the nylon rope with the length of 50m to the shore, then a waterfall person on the shore drags the other end of the geotextile roll to the shore side, and then the cut round holes are sleeved on two steel piles at the positions corresponding to the even number pile positions of the G row and the B row, so that the geotextile roll is spread on the water surface;
after the cloth spreading of A2 is finished, a nylon rope is adopted to wind the steel pile for a circle at the contact position of the geotextile roll and the steel pile, and the two ends of the nylon rope are firmly tied with the marked position on the geotextile roll;
a3 tying the geotextile roll, firstly tying a 24-26kg sandbag on the geotextile roll at the steel pile, then placing the sandbag on a steel pile cap, and pushing the sandbag into water from the land side to the sea side after all the sandbags at the steel pile are tied, so that the geotextile roll sinks to the seabed;
after the geotextile rolls at the A4 steel piles are laid, moving a positioning ship to the sea side, rotating a cloth rolling roller by a cloth laying person to enable the geotextile rolls to fall off from the cloth rolling roller, moving the positioning ship to the sea side for two meters each time, tying a row of sandbags on the geotextile rolls by the cloth laying person, and then sinking the geotextile rolls into the sea; after all the geotextile rolls are immersed into the sea, continuously moving the positioning ship backwards, moving the positioning ship, loosening the nylon ropes wound on the fabric rolling shafts until the geotextile is completely immersed into the sea bottom, then unwinding the nylon ropes and drawing out; in the process of laying the geotextile, a diver observes the laying condition of the geotextile underwater, and the geotextile is flattened in time at a contracted place and is pressed well by a sand bag;
(V) laying lap joint cloth rolls:
b1 lapping cloth roll at the position of laying steel piles: placing the cut lap cloth rolls between two adjacent geotechnical cloth rolls, and pressing the lap cloth rolls with sand bags;
b2 laying lap rolls at 30m of the wharf front: the laying mode of the lap cloth roll is the same as that of the geotextile roll at the position of 30m of the wharf front edge.
The equipartition roller bearing is a diameter and is 10 cm's seamless steel pipe, and the both ends of seamless steel pipe all weld the bearing, and the bearing welding is on with shaped steel welded support, and the scaffold weldment is on the location flotation pontoon, and the both ends of batching ball all weld the limiting plate that prevents that geotechnological cloth from rolling up and drop from the batching ball, and the distance between the limiting plate is 6 m.
And (D) in the step (IV) A2, a gap of 20-30cm is reserved between the nylon rope and the steel pile.
In the step (I), each width of the geotextile roll is 6m, and the length of the geotextile roll is 77 m; each lap cloth roll has the width of 2.3m and the length of 77 m.
Preferably, after the geotextile rolls and the lap-joint yardage rolls are completely paved, a cloth paving person carries a tugboat to randomly throw sandbags on the paved geotextile rolls and the lap-joint yardage rolls to realize the pressing of the geotextile rolls and the lap-joint yardage rolls.
The invention has the beneficial effects that: the invention adjusts the sequence of pile sinking and geotextile laying, and then lays geotextile under the wharf after pile sinking is finished, thereby effectively solving the defects; in addition, the sand bags are pressed while the geotextile rolls and the lap joint yardage rolls are paved, so that the geotextile is more smooth and difficult to move, and the paving effect is better.
Drawings
FIG. 1 is a cross-sectional view of geotextile laying;
in the figure: 1. geotextile; 2. and (5) steel piles.
Detailed Description
The invention is further illustrated by the following examples:
the laying process of the earthwork cloth under the high-pile wharf is characterized by comprising the following steps of:
cutting: the geotextile 1 is manufactured in two forms, one is a geotextile roll among odd-number racks; one is a lap joint cloth roll between two adjacent geotechnical cloth rolls;
(II) preparing in the early stage: the geotextile roll is unfolded on the ground, round holes are cut at two steel piles 2 corresponding to the positions of the even number piles in the G row and the B row according to the size of a drawing, two nylon ropes with the length of 20m are adopted to fasten two corners at one end of the geotextile roll, the other ends of the two nylon ropes are tied on a cloth rolling roller, and then the cloth rolling roller is rotated to roll the geotextile roll on the cloth rolling roller in order;
(III) positioning: placing the cloth rolling shaft on a positioning buoy, dragging the positioning buoy to the front edge of a wharf to be parked, and fixing the rear edge of the positioning buoy in parallel to a parking square barge, wherein the parking square barge is fixed by four anchor cables which are arranged in a splayed manner;
and (IV) laying geotextile rolls:
after the positioning of A1 is finished, firstly, a nylon rope with the length of 50m is adopted to fasten the other end of the geotextile roll, then a spreading person takes a tugboat to send the nylon rope with the length of 50m to the shore, then a waterfall person on the shore drags the other end of the geotextile roll to the shore side, and then the cut round holes are sleeved on two steel piles 2 corresponding to the rows G and B of even-numbered pile positions, so that the geotextile roll is spread on the water surface;
after the cloth spreading of A2 is finished, a nylon rope is adopted to wind the steel pile 2 for a circle at the contact part of the geotextile roll and the steel pile 2, and the two ends of the nylon rope are firmly tied with the marked part on the geotextile roll;
a3 tying the geotextile roll, firstly tying a 24-26kg sandbag on the geotextile roll at the position of the steel pile 2, then placing the sandbag on a steel pile cap, and pushing the sandbag into water from the land side to the sea side after all the sandbags at the position of the steel pile 2 are tied, so that the geotextile roll sinks until the seabed;
after the geotextile roll at the position of the A4 steel pile 2 is laid, moving a positioning ship to the sea side, rotating a cloth rolling roller by a cloth laying person to enable the geotextile roll to fall off from the cloth rolling roller, and tying a row of sandbags on the geotextile roll by the cloth laying person every time the positioning ship moves two meters to the sea side, and then sinking the geotextile roll into the sea bottom; after all the geotextile rolls are immersed into the sea, continuously moving the positioning ship backwards, moving the positioning ship, loosening the nylon ropes wound on the fabric rolling shafts until the geotextile 1 is completely immersed into the sea bottom, then unwinding the nylon ropes and drawing out; in the cloth laying process, a diver observes the laying condition of the geotextile 1 underwater, and the geotextile is spread in time on a contracted place and pressed by a sand bag;
(V) laying lap joint cloth rolls:
b1 laying lapping cloth roll at the position of the steel pile 2: placing the cut lap cloth rolls between two adjacent geotechnical cloth rolls, and pressing the lap cloth rolls with sand bags;
b2 laying lap rolls at 30m of the wharf front: the laying mode of the lap cloth roll is the same as that of the geotextile roll at the position of 30m of the wharf front edge.
The equipartition roller bearing is a diameter and is 10 cm's seamless steel pipe, and the both ends of seamless steel pipe all weld the bearing, and the bearing welding is on with shaped steel welded support, and the scaffold weldment is on the location flotation pontoon, and the both ends of batching ball all weld the limiting plate that prevents that geotechnological cloth from rolling up and drop from the batching ball, and the distance between the limiting plate is 6 m.
And (D) in the step (IV) A2, a gap of 20-30cm is reserved between the nylon rope and the steel pile 2.
In the step (I), each width of the geotextile roll is 6m, and the length of the geotextile roll is 77 m; each lap cloth roll has the width of 2.3m and the length of 77 m.
Preferably, after the geotextile rolls and the lap-joint yardage rolls are completely paved, a cloth paving person carries a tugboat to randomly throw sandbags on the paved geotextile rolls and the lap-joint yardage rolls to realize the pressing of the geotextile rolls and the lap-joint yardage rolls.
Embodiment 1 a laying process of an earthwork cloth under a high-piled wharf includes the following steps:
cutting: the geotextile 1 is manufactured in two forms, one is a geotextile roll among odd-number racks; one is a lap joint cloth roll between two adjacent geotechnical cloth rolls;
(II) preparing in the early stage: the geotextile roll is unfolded on the ground, round holes are cut at two steel piles 2 corresponding to the positions of the even number piles in the G row and the B row according to the size of a drawing, two nylon ropes with the length of 20m are adopted to fasten two corners at one end of the geotextile roll, the other ends of the two nylon ropes are tied on a cloth rolling roller, and then the cloth rolling roller is rotated to roll the geotextile roll on the cloth rolling roller in order;
(III) positioning: placing the cloth rolling shaft on a positioning buoy, dragging the positioning buoy to the front edge of a wharf to be parked, and fixing the rear edge of the positioning buoy in parallel to a parking square barge, wherein the parking square barge is fixed by four anchor cables which are arranged in a splayed manner;
and (IV) laying geotextile rolls:
after the positioning of A1 is finished, firstly, a nylon rope with the length of 50m is adopted to fasten the other end of the geotextile roll, then a spreading person takes a tugboat to send the nylon rope with the length of 50m to the shore, then a waterfall person on the shore drags the other end of the geotextile roll to the shore side, and then the cut round holes are sleeved on two steel piles 2 corresponding to the rows G and B of even-numbered pile positions, so that the geotextile roll is spread on the water surface;
after the cloth spreading of A2 is finished, a nylon rope is adopted to wind the steel pile 2 for a circle at the contact part of the geotextile roll and the steel pile 2, and the two ends of the nylon rope are firmly tied with the marked part on the geotextile roll;
a3 tying the geotextile roll, firstly tying a 24kg sandbag on the geotextile roll at the position of the steel pile 2, then placing the sandbag on a steel pile cap, and pushing the sandbag into water from the land side to the sea side after all the sandbags at the position of the steel pile 2 are tied, so that the geotextile roll sinks to the seabed;
after the geotextile roll at the position of the A4 steel pile 2 is laid, moving a positioning ship to the sea side, rotating a cloth rolling roller by a cloth laying person to enable the geotextile roll to fall off from the cloth rolling roller, and tying a row of sandbags on the geotextile roll by the cloth laying person every time the positioning ship moves two meters to the sea side, and then sinking the geotextile roll into the sea bottom; after all the geotextile rolls are immersed into the sea, continuously moving the positioning ship backwards, moving the positioning ship, loosening the nylon ropes wound on the fabric rolling shafts until the geotextile 1 is completely immersed into the sea bottom, then unwinding the nylon ropes and drawing out; in the cloth laying process, a diver observes the laying condition of the geotextile 1 underwater, and the geotextile is spread in time on a contracted place and pressed by a sand bag;
(V) laying lap joint cloth rolls:
b1 laying lapping cloth roll at the position of the steel pile 2: placing the cut lap cloth rolls between two adjacent geotechnical cloth rolls, and pressing the lap cloth rolls with sand bags;
b2 laying lap rolls at 30m of the wharf front: the laying mode of the lap cloth roll is the same as that of the geotextile roll at the position of 30m of the wharf front edge.
The equipartition roller bearing is a diameter and is 10 cm's seamless steel pipe, and the both ends of seamless steel pipe all weld the bearing, and the bearing welding is on with shaped steel welded support, and the scaffold weldment is on the location flotation pontoon, and the both ends of batching ball all weld the limiting plate that prevents that geotechnological cloth from rolling up and drop from the batching ball, and the distance between the limiting plate is 6 m.
In the step (IV) A2, a gap of 20cm is left between the nylon rope and the steel pile 2.
In the step (I), each width of the geotextile roll is 6m, and the length of the geotextile roll is 77 m; each lap cloth roll has the width of 2.3m and the length of 77 m.
Preferably, after the geotextile rolls and the lap-joint yardage rolls are completely paved, a cloth paving person carries a tugboat to randomly throw sandbags on the paved geotextile rolls and the lap-joint yardage rolls to realize the pressing of the geotextile rolls and the lap-joint yardage rolls.
Embodiment 2 a laying process of an earthwork cloth under a high-piled wharf, comprising the following steps:
cutting: the geotextile 1 is manufactured in two forms, one is a geotextile roll among odd-number racks; one is a lap joint cloth roll between two adjacent geotechnical cloth rolls;
(II) preparing in the early stage: the geotextile roll is unfolded on the ground, round holes are cut at two steel piles 2 corresponding to the positions of the even number piles in the G row and the B row according to the size of a drawing, two nylon ropes with the length of 20m are adopted to fasten two corners at one end of the geotextile roll, the other ends of the two nylon ropes are tied on a cloth rolling roller, and then the cloth rolling roller is rotated to roll the geotextile roll on the cloth rolling roller in order;
(III) positioning: placing the cloth rolling shaft on a positioning buoy, dragging the positioning buoy to the front edge of a wharf to be parked, and fixing the rear edge of the positioning buoy in parallel to a parking square barge, wherein the parking square barge is fixed by four anchor cables which are arranged in a splayed manner;
and (IV) laying geotextile rolls:
after the positioning of A1 is finished, firstly, a nylon rope with the length of 50m is adopted to fasten the other end of the geotextile roll, then a spreading person takes a tugboat to send the nylon rope with the length of 50m to the shore, then a waterfall person on the shore drags the other end of the geotextile roll to the shore side, and then the cut round holes are sleeved on two steel piles 2 corresponding to the rows G and B of even-numbered pile positions, so that the geotextile roll is spread on the water surface;
after the cloth spreading of A2 is finished, a nylon rope is adopted to wind the steel pile 2 for a circle at the contact part of the geotextile roll and the steel pile 2, and the two ends of the nylon rope are firmly tied with the marked part on the geotextile roll;
a3 tying the geotextile roll, firstly tying a 26kg sandbag on the geotextile roll at the position of the steel pile 2, then placing the sandbag on a steel pile cap, and pushing the sandbag into water from the land side to the sea side after all the sandbags at the position of the steel pile 2 are tied, so that the geotextile roll sinks to the seabed;
after the geotextile roll at the position of the A4 steel pile 2 is laid, moving a positioning ship to the sea side, rotating a cloth rolling roller by a cloth laying person to enable the geotextile roll to fall off from the cloth rolling roller, and tying a row of sandbags on the geotextile roll by the cloth laying person every time the positioning ship moves two meters to the sea side, and then sinking the geotextile roll into the sea bottom; after all the geotextile rolls are immersed into the sea, continuously moving the positioning ship backwards, moving the positioning ship, loosening the nylon ropes wound on the fabric rolling shafts until the geotextile 1 is completely immersed into the sea bottom, then unwinding the nylon ropes and drawing out; in the cloth laying process, a diver observes the laying condition of the geotextile 1 underwater, and the geotextile is spread in time on a contracted place and pressed by a sand bag;
(V) laying lap joint cloth rolls:
b1 laying lapping cloth roll at the position of the steel pile 2: placing the cut lap cloth rolls between two adjacent geotechnical cloth rolls, and pressing the lap cloth rolls with sand bags;
b2 laying lap rolls at 30m of the wharf front: the laying mode of the lap cloth roll is the same as that of the geotextile roll at the position of 30m of the wharf front edge.
The equipartition roller bearing is a diameter and is 10 cm's seamless steel pipe, and the both ends of seamless steel pipe all weld the bearing, and the bearing welding is on with shaped steel welded support, and the scaffold weldment is on the location flotation pontoon, and the both ends of batching ball all weld the limiting plate that prevents that geotechnological cloth from rolling up and drop from the batching ball, and the distance between the limiting plate is 6 m.
In the step (IV) A2, a gap of 30cm is left between the nylon rope and the steel pile 2.
In the step (I), each width of the geotextile roll is 6m, and the length of the geotextile roll is 77 m; each lap cloth roll has the width of 2.3m and the length of 77 m.
Preferably, after the geotextile rolls and the lap-joint yardage rolls are completely paved, a cloth paving person carries a tugboat to randomly throw sandbags on the paved geotextile rolls and the lap-joint yardage rolls to realize the pressing of the geotextile rolls and the lap-joint yardage rolls.
The present invention has been described in detail with reference to the above embodiments, and it is apparent that the specific implementation of the present invention is not limited by the above embodiments, and it is within the scope of the present invention to employ various modifications of the method concept and technical solution of the present invention, or to apply the same to other applications without modification.
Claims (5)
1. The laying process of the earthwork cloth under the high-pile wharf is characterized by comprising the following steps of:
cutting: the geotextile (1) is manufactured in two forms, one is a geotextile roll among odd-number racks; one is a lap joint cloth roll between two adjacent geotechnical cloth rolls;
(II) preparing in the early stage: the geotextile roll is unfolded on the ground, round holes are cut at two steel piles (2) corresponding to the positions of the even number piles in the G row and the B row according to the size of a drawing, two nylon ropes with the length of 20m are adopted to fasten two corners at one end of the geotextile roll, the other ends of the two nylon ropes are tied on a cloth rolling roller, and then the cloth rolling roller is rotated to roll the geotextile roll on the cloth rolling roller in order;
(III) positioning: placing the cloth rolling shaft on a positioning buoy, dragging the positioning buoy to the front edge of a wharf to be parked, wherein the positioning buoy is parallel to a parking square barge which is fixed by four anchor cables which are arranged in a splayed shape;
and (IV) laying geotextile rolls:
after the positioning of A1 is finished, firstly, a nylon rope with the length of 50m is adopted to fasten the other end of the geotextile roll, then a cloth laying person takes a tugboat to send the nylon rope with the length of 50m to the shore, then the cloth laying person on the shore drags the other end of the geotextile roll to the shore side, and then the cut round holes are sleeved on two steel piles (2) corresponding to the positions G and B of even-numbered pile positions, so that the geotextile roll is laid on the water surface;
after the cloth spreading of A2 is finished, a nylon rope is wound around the steel pile (2) for one circle at the contact part of the geotextile roll and the steel pile (2), and the two ends of the nylon rope are firmly fastened with the marked part on the geotextile roll;
a3 tying the geotextile roll, firstly tying a 24-26kg sandbag on the geotextile roll at the position of the steel pile (2), then placing the sandbag on a steel pile cap, and pushing the sandbag into water from the land side to the sea side after all the sandbags at the position of the steel pile (2) are tied, so that the geotextile roll sinks to the seabed;
after the geotextile rolls at the A4 steel pile (2) are laid, moving a positioning ship to the sea side, rotating a cloth rolling roller by a cloth laying person to enable the geotextile rolls to fall off from the cloth rolling roller, tying a row of sandbags on the geotextile rolls by the cloth laying person every time the positioning ship moves two meters to the sea side, and then sinking the geotextile rolls into the sea; after all the geotextile rolls are immersed into the sea, continuously moving the positioning ship backwards, moving the positioning ship, loosening the nylon ropes wound on the roll cloth rolling shafts until the geotextile (1) is completely immersed into the sea bottom, then loosening the nylon ropes, and drawing out; in the cloth laying process, a diver observes the laying condition of the geotextile (1) underwater, and the geotextile is spread in time on a contracted place and pressed by a sand bag;
(V) laying lap joint cloth rolls:
b1 laying lapping cloth roll at the position of the steel pile (2): placing the cut lap cloth rolls between two adjacent geotechnical cloth rolls, and pressing the lap cloth rolls with sand bags;
b2 laying lap rolls at 30m of the wharf front: the laying mode of the lap cloth roll is the same as that of the geotextile roll at the position of 30m of the wharf front edge.
2. The laying process of the geotextile under the high-piled wharf as claimed in claim 1, wherein the cloth rolling shaft is a seamless steel tube with a diameter of 10cm, bearings are welded at two ends of the seamless steel tube, the bearings are welded on a bracket welded by profile steel, the bracket is welded on the positioning buoy, limiting plates for preventing the geotextile roll from falling off from the cloth rolling ball are welded at two ends of the cloth rolling ball, and the distance between the limiting plates is 6 m.
3. The process for laying the geotextile under the high-piled wharf according to claim 1, wherein in the step (IV), a gap of 20-30cm is left between the nylon rope and the steel pile (2) in the step (IV) A2.
4. The process of laying geotextile under a high-piled wharf as claimed in claim 1, wherein the geotextile rolls in the step (a) are 6m in width and 77m in length; each lap cloth roll has the width of 2.3m and the length of 77 m.
5. The process of laying geotextile under the high-piled wharf as claimed in claim 1, further comprising the step of pressing the geotextile rolls and the lap-joint yardage rolls by randomly throwing sandbags on the laid geotextile rolls and lap-joint yardage rolls by using a tugboat after the geotextile rolls and the lap-joint yardage rolls are completely laid.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101289860A (en) * | 2008-04-10 | 2008-10-22 | 中交三航局第二工程有限公司 | Underwater slope protection construction method for foundation ditch in water |
| CN102277853A (en) * | 2011-04-26 | 2011-12-14 | 中交四航工程研究院有限公司 | Novel quick and reliable underwater arrangement technology |
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