JP3295446B2 - Method and apparatus for laying waterproof sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for laying a water-impervious sheet for efficiently laying a large-area water-impervious sheet on the bottom of a landfill where various wastes are to be put. Things.

[0002]

2. Description of the Related Art Conventionally, a method of laying a large-area impermeable sheet in a landfill for the above-mentioned purpose has been disclosed in the invention of Japanese Patent Publication No. 60-58330 concerning the method of laying an impermeable sheet. As described above, a water-impervious sheet having a width of, for example, about 10 m and a length of about 100 m is welded on land to form a large-area sheet. A float is attached, a rope is attached to the tip of the float, and the rope is wound by a winch.

In such a conventional method of laying a waterproof sheet, if the weather conditions deteriorate during the construction, the construction cannot be interrupted, so that there is a problem that the area that can be laid is limited. In addition, since a large-area sheet is laid while bonding a sheet wound in a roll to produce a large-area sheet, the laying speed of the sheet must match the bonding speed of the sheet. There is a problem that the speed becomes slow.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and a water-impervious sheet having a larger area than the conventional one is manufactured by welding efficiently on a barge. It is an object of the present invention to provide a method and an apparatus for laying a seepage control sheet that can be laid.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a roll-shaped impermeable sheet is set on a sheet welding truck mounted on a sheet welding laying barge, and the bogie is moved to spread the impermeable sheet to a predetermined length. Then, the operation of laying the next stage of the impermeable sheet on the bogie by moving the bogie to a predetermined length, and folding and welding one end of the lower impermeable sheet thereon is laid thereon.
After repeating until the sheet length is reached, the sheet welding laying barge
Is towed to a predetermined position and connected to the spud barge, and then the sheet welding laying barge is moved to the spud barge side to lay the sheet on the water bottom, thereby laying the water-blocking sheet.

[0006] An apparatus for carrying out such a method is an apparatus used in the above-described method of laying a seepage control sheet.
On both sides of the sheet welding space provided in the center.
Arrange and lay the rails for running the welding trolley.
At the next level of the impermeable sheet opposite the tip of the impermeable sheet
From a barge equipped with a sheet stopper that locks the overlapping part
And a device for laying a seepage control sheet .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a sheet welding laid barge (abbreviated as a barge for convenience in the following description), and FIG. FIG. 3 is an enlarged perspective view of the main part of FIG. 2, FIG. 4 is an enlarged side view of the sheet holding device of FIG. 1, and FIG. 5 is a seat mounted on the barge of FIG. FIG. 6 is a side view of FIG. 5, FIG. 7 is a plan view of FIG. 5, and FIG. 8 is a side view showing a situation in which the bogie of FIG. 5 is mounted on a bogie. FIG. 9 is a perspective view of a water-impervious sheet (hereinafter abbreviated as a sheet for convenience) wound in a roll shape, FIG. 10 is a front view of a spud barge connecting the barges of FIG. 1, and FIG. 11 is a side view of FIG. FIG. 12 is a perspective view of a sheet pulling component attached to the leading end of the sheet.

FIG. 13 is a plan view for explaining a procedure of a sheet welding laying method in a case where the sheet laying is divided into blocks, and FIG. 14 is a side view for explaining the sheet welding on the barge when manufacturing. 15 is a side view for explaining the welding of the sheet of FIG. 14, FIG. 16 is a side view for explaining the laying state of the sheet, FIG. 17 is a plan view of the barge of FIG. 16, and FIG. FIG. 18 is a side view for explaining the case, and FIG.
And FIG. 20 is a side view for explanation when welding the ends of the sheet to the steel sheet pile revetment at the end of the sheet.

First, as shown in FIG. 1, the barge 1 used in the method for laying a seepage control sheet according to the present invention has a sheet welding space 2 at a central portion on the barge 1, On both sides of this space, two rails (not shown) for the carriage 40 shown in FIGS. 5, 6 and 7 to run are arranged, and a seat laying side deck of the sheet welding space 2 is provided. , An empty roller 3 and a plurality of air discharge ports 4 are provided.

On the side of the barge 1 opposite to the side on which the seat 10 is laid, as shown in FIGS.
The pipe 6 is inserted into the folded end portion of the next stage of 0, the pipe 6 is fixed to the seat 10 by the retaining ring 7, and the pipe stopper 6 is fixed to the support 12 by the rope 11 at a predetermined interval. Are provided. As in this embodiment, a traveling hoist 22 is mounted on a boom 21 rotatably provided on the support column 12 shown in FIG. 4, and a plurality of sheet holding devices 20 with a weight 23 hanging on the traveling hoist 22 are arranged at predetermined intervals. It is preferable to provide one.

Next, a procedure for manufacturing and laying the sheet 10 by welding on the barge 1 using the method of the present invention will be described. First, the barge 1 is placed near the welding yard 33 on land shown in FIG. The mooring is carried, and a bogie 40 is mounted on the barge 1 as shown in FIG. 8, and as shown in FIG.
m, steel pipe 3 shipped from a factory about 100 m long
The sheet 10 wound in a roll around 4 is set by a crane or the like on a delivery roller 41 and an adjustment roller 42 of a carriage 40 so as to be received by a sheet receiving bearing 43.

Then, the carriage 40 is moved by the wheels 44 to be spread over the sheet welding space 2 of the barge 1. In this embodiment, for example, since the width of the sheet 10 to be laid is about 200 m, it is equivalent to two rolls. The sheet 10 is welded and spread to a predetermined length, and as shown in FIG. 14, the next step of the sheet 10 is laid on the sheet 10 and spread to a predetermined length, and further, as shown in FIG. Fold one end and use arrow M
The welding operation is repeated as above.

That is, the same procedure is repeated until the length of the predetermined sheet 10 to be laid is reached, and the sheet 10 having a predetermined area is manufactured on the barge 1 moored by the mooring pile 34 near the welding yard 33. I will. Since the sheet 10 is folded and placed on the barge 1, a friction reducing material, for example, a compound resin or the like may be sprayed between the folded sheets 10.

When the production of the sheet 10 by welding is completed as described above, the bogie 40 is lowered from the barge 1 by a crane or the like, and then a plurality of spud barges 50 shown in FIGS. Fix it. Also,
With the weight 60 filled with water in a vinyl hose placed on the sheet 10 of the barge 1, the boat is towed as shown by the arrow F in FIG.
The winch 52 of the spud barge 50 is attached to the bit 61 of the barge 1
And connected with a wire.

Here, in the case where the laying of the sheet 10 is performed by dividing it into a plurality of sections, or in order to process the end of the sheet 10, a sheet pulling component 15 made of a resin rope shown in FIG. , And are welded at predetermined intervals to the end and both ends. Next, the weight 60 of the sheet 10 of the barge 1 and the weight 23 of the sheet holding device 20 are removed, and the winch 52 of the spud barge 50 is wound up while discharging air from the air discharge port 4. As shown in FIG. 16 and FIG. 17, the barge 1 is moved toward the spud barge 50 by the folded length of the sheet 10, for example, 10 m in this embodiment, and the sheet 10 is laid on the water bottom.

Then, the weight 23 of the sheet holding device 20 is placed on the sheet 10, and the sheet stopper 13 is replaced with the folded end of the sheet 10 in the next stage. The seat 10 is laid while sequentially repeating the procedure from the movement of the barge 1 to the replacement of the seat stopper 13. Therefore, when the length of the sheet 10 to be laid is long, as shown in FIG. 13, the barge 1 is towed to the welding yard 33, and the sheet 10 is again welded on the barge 1 to produce the sheet 10 having a predetermined area. The laying operation is performed in the same procedure as described above.

When the laying operation is interrupted due to bad weather, a weight 60 containing water in a vinyl hose is attached to the sheet 10.
The barge 1 is pulled on the spud barge 50 and moored thereon. Next, when the area where the sheet 10 is laid is divided into a plurality of construction sections, the sheet 10 is given a margin of water depth plus alpha in advance, and the end of the sheet 10 shown in FIG.
A plurality of sheet pulling parts 15 are welded at predetermined intervals, and a portion near the end of the sheet 10 is attached to a buoy 70 with a rope as shown in FIG.
After mooring as shown in FIG. 19, as shown in FIG.
The sheets 10 to be welded on a barge or the like using a floater 72 on the surface of the water near 1
At 3 the two are welded.

When fixing the end of the sheet 10 to the steel sheet pile revetment 80 shown in FIG.
2, a plurality of sheet pulling parts 15 are welded at predetermined intervals, rollers 81 are arranged at predetermined intervals at the lower end of the steel sheet pile revetment 80, and buoys 82 are attached to the ends through pulling ropes 83. Tensile parts 15 and ropes 8
3 and the sheet 10 may be drawn down to the bottom of the steel sheet pile revetment 80. The sheet pile revetment 80 and the sheet 10 are integrated by applying sand mastic.

[0019]

According to the method and the apparatus for laying a water-impervious sheet of the present invention described above, the work of laying the sheet and the work of laying the sheet are separated from each other. It can be laid, and there is an effect that the laying work efficiency is significantly improved.

Further, since the sheet laying speed is high, it is possible to lay a sheet having a larger area than before, and there is little possibility of being affected by the weather. Furthermore, since the end of the roll-shaped sheet is bent and welded, there is an advantage that a welding work space is reduced. In particular, according to the present invention, since the sheets are welded and manufactured on the barge, there is no need to transfer the manufactured sheets to the laying apparatus, which is efficient.

[Brief description of the drawings]

FIG. 1 is a side view of a barge used in the method of the present invention.

FIG. 2 is a side view showing the position of the sheet stopper of FIG. 1;

FIG. 3 is an enlarged perspective view of a main part of FIG. 2;

FIG. 4 is an enlarged side view of the sheet pressing device of FIG. 1;

FIG. 5 is a front view of a truck mounted on the barge of FIG.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a plan view of FIG. 5;

FIG. 8 is a side view showing a state where the bogie of FIG. 5 is mounted on a barge.

FIG. 9 is a perspective view of a sheet wound in a roll shape.

FIG. 10 is a front view of a spud barge connecting the barges of FIG. 1;

FIG. 11 is a side view of FIG. 10;

FIG. 12 is a perspective view of a sheet pulling component attached to a front end of the sheet.

FIG. 13 is a plan view for explaining a procedure of a sheet welding laying method in a case where a sheet is laid in blocks of A, B, and C.

FIG. 14 is an explanatory side view at the time of producing a sheet on a barge by welding.

FIG. 15 is a side view for explaining welding of the sheet of FIG. 14;

FIG. 16 is a side view for explaining a sheet laying state.

17 is a plan view of the barge of FIG. 16;

FIG. 18 is an explanatory side view in a case where a sheet laying section is divided.

FIG. 19 is a side view for explaining the state of welding at both ends of the sheet of FIG. 18;

FIG. 20 is an explanatory side view when the end of the sheet is attached to a steel sheet pile revetment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sheet welding laying barge 2 Sheet welding space 10 Waterproof sheet 13 Seat fixing device 40 Sheet welding trolley 50 Spud barge

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tetsuzo Iwazuki 1-3, Azen-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Within Toa Construction Industry Co., Ltd. (56) References JP-A-2-248513 JP-A-1-111912 (JP, A) JP-A-60-126414 (JP, A) JP-B-63-3092 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 1 / 00 E02B 3/12 E02B 3/18 E02B 7/02 E02D 3/00 102 E02D 19/06

Claims (2)

(57) [Claims] 1. A roll-shaped water-impervious sheet is set on a sheet welding vehicle mounted on a sheet welding laying boat, and the carriage is moved to spread the water-impervious sheet to a predetermined length. The operation of moving the bogie and stacking the impermeable sheet to a predetermined length, and repeating the operation of folding and welding one end of the lower impermeable sheet until the sheet length to be laid is repeated .
After that, tow the sheet welding laying barge to a predetermined position,
After connecting to the spud barge, the impermeable sheet welding method of laying the sheet on the bottom of the water by moving the sheet welding barge to the spud barge side. 2. A method for laying a water-impervious sheet according to claim 1.
This is a device used for sheet welding.
Rails for running the sheet welding cart on both sides of the base
And the impervious sheet on the side opposite to the tip of the impervious sheet to be laid.
Sheet stopper that locks the folded part of the next step of the sheet
Water barrier sheet welding laying equipment consisting of a barge equipped with an installation .