JPH0959991A - Water-barrier sheet stretcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new water-barrier sheet stretcher capable of improving the efficiency of operation by mechanizing operation, in which a water-barrier sheet is stretched on a face of a slope at an acute angle. SOLUTION: A rope L for stretching a sheet connected to a water-barrier sheet S is wound up by a winch 1 loaded on a truck 4 while being supported by an arm 2 loaded on the movable truck 4. Accordingly, the water-barrier sheet S drawn out from a drawing-out machine 3 in conformity with the wind-up is pulled up and stretched along the face of a slope B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the construction of a final disposal site for industrial waste by digging a huge hole, revetment work for rivers and ponds, cliff reinforcement work, and even for residential areas. The present invention relates to a new waterproof sheet spreading device for spreading a waterproof sheet on a steep slope in a construction work or the like.

[0002]

2. Description of the Related Art For example, when digging a huge hole to construct a final disposal site for industrial waste, harmful substances flow out from the industrial waste dumped in the hole, which causes the surrounding soil and groundwater to flow out. It is necessary to spread a water-blocking sheet such as a high-density polyethylene sheet or a rubber sheet on the entire surface of the hole in order to prevent the contamination of the above.

In the revetment work for rivers and ponds, the reinforcement of cliffs, the construction of residential areas, etc., temporary collapse prevention before concrete block walls, stone walls, etc. are subjected to permanent covering treatment. For this purpose, a waterproof sheet such as a vinyl sheet is spread on the slope. Conventionally, the spreading of the impermeable sheet as described above has been performed manually. That is, several workers unwound the water-impervious sheet wound in a roll shape, cut it to a predetermined length, wound it again in a roll shape, transported it to a deployment location, and spread it. It was.

[0004]

For example, in the final disposal site of industrial waste, if the flat surface such as the bottom of a hole is used, it is relatively easy to manually spread the impermeable sheet as described above. However, the slope around the bottom has a steep angle that makes it difficult for people to climb due to the amount of industrial waste that can be accommodated. It wasn't easy to deploy at, it took a lot of people and time, and it wasn't efficient.

In addition, since the slopes of the banks of rivers and rivers, the slopes of cliffs and landslides, etc. are often so steep that it is not easy for people to climb, the same spreading work as above. It wasn't easy and efficient. An object of the present invention is to provide a novel water-impermeable sheet spreading device capable of increasing the efficiency of the work by mechanizing the work of spreading the water-impermeable sheet on the steep slope or the like as described above. Especially.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a waterproof sheet spreading device of the present invention comprises a hoist for hoisting a sheet stretching rope connected to a waterproof sheet, and a hoist. At the time of winding the sheet stretching rope, an arm supporting the sheet stretching rope and a roll for pulling up the water-blocking sheet connected to the sheet stretching rope along the slope etc. It is characterized in that a water-impermeable sheet that is wound in a shape is provided on a movable carriage, and an unwinding machine that unwinds in accordance with the winding of the sheet stretching rope by the hoisting machine.

According to the water-impermeable sheet spreading apparatus of the present invention having the above-described structure, the work from the supply of the water-impermeable sheet to the spreading of the water-impermeable sheet on a steep slope or the like can be mechanized,
It becomes possible to improve the efficiency.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A water-impermeable sheet stretching apparatus of the present invention will be described below with reference to FIGS. 1 and 2 showing an example of an embodiment thereof. The water-impermeable sheet spreading device of the example shown in the drawing is a hoisting machine 1 for hoisting a sheet spreading rope L connected to a water-blocking sheet S, and a hoisting machine 1 at the time of hoisting the sheet spreading rope L. The sheet extension rope L
In order to pull up the water-impervious sheet S connected to the sheet along the slope B and extend it, the arm 2 that supports the sheet stretching rope L and the water-impermeable sheet S wound in a roll are wound. The unwinding machine 3 that unwinds in accordance with the winding of the sheet stretching rope L by the upper machine 1 is mounted on the base 42 of the self-propelled carriage 4.

Of the above, the hoisting machine 1 and the arm 2 have a base 4
The hoisting machine 1 is arranged on a yagura 42a provided on the top of the hoisting machine 2, and as the hoisting machine 1, a normal hoisting machine of a manual type, an electric type, or an internal combustion power type is used. Also, the arm 2
A main body 22 rotatably attached to the yag 42a about a shaft 21, and pulleys P1 and P2 rotatably arranged on the shaft 21 and a shaft 23 at the tip of the main body 22. It has and.

As shown in FIG. 1, the arm 2 rotates the main body 22 about a shaft 23 to incline in the same direction as the slope B, and the slope B on the front side of the slope. While supporting the sheet stretching rope L connected to the water-impervious sheet S by the pulleys P2 and P1, the main body 22
The water-impermeable sheet S is configured to be pulled up along the slope B and stretched by being wound around the tip of the winder 1 and wound up by the hoisting machine 1 arranged behind the slope.

Further, since the length of the main body 22 of the arm 2 reaches approximately 15 to 30 m, the tip of the arm 22 is prevented from hanging downward by itself or by the weight of the water-blocking sheet S during the spreading work. Therefore, an arm support 24 is rotatably attached to the tip of the arm 23 around the shaft 23, and a tire T rotatably provided at the tip of the arm support 24 is shown in FIG. 1, for example. like,
By bringing the water-blocking sheet S into contact with a slope surface B ′ or the like on the slope surface B on which the water barrier sheet S is stretched, the tip of the main body 22 is supported.

The rotatable tire T is provided at the tip of the arm support 24 in order to maintain the lower support of the main body 22 by the arm support 24 when the carriage 4 moves. That is, if the carriage 4 moves, the arm support 24
Also, since the truck 4 follows the rotation of the tire T,
The support of the main body 22 is maintained. According to the above configuration,
There is an advantage that the weight of the entire arm 2 can be reduced as compared with the case where the main body 22 of the arm 2 itself has a more sturdy structure and sagging of the tip is prevented.

The pay-out machine 3 includes a main body 22 of the arm 2.
On the base 42, which is the front of the inclination, two rollers are arranged in two rows and four rollers 31 are arranged in parallel. Then, the roll S1 of the water-impervious sheet S is placed on the two rows of the rollers 31, and the roll S1 is rotated in accordance with the winding of the sheet stretching rope L by the hoisting machine 1, and the water-impermeable sheet S is fed out. Be done.

In order to rotate the roll S1 in accordance with the winding of the sheet stretching rope L by the hoisting machine 1, each roller 31 on which the roll S1 is placed is not shown according to the operation of the hoisting machine 1. The rollers 31 may be rotated by power, or each roller 31 may be followed and rotated without power in synchronization with the withdrawal of the water-blocking sheet S by winding up the sheet stretching rope L.

As shown in FIG. 2, since the roll S1 placed on the roller 31 is longer than the one row of the rollers 31 by two rolls, the roll S1 is prevented in order to prevent the protruding portion from hanging down. It is preferable to pass the iron core S2 through the center of the core as shown in FIG. When the base 42 of the carriage 4 is sufficiently long, a receiving roll is provided at both ends of the base 42.
The protruding portion of the roll S1 may be prevented from hanging down.

The trolley 4 has two endless tracks 41, 41, and a self-propelled trolley body 43 having power (not shown) for driving the endless tracks 41, 41.
On the carriage main body 43, as described above, the trolley main body 43 is configured to include the hoisting machine 1, the arm 2 and the base 42 on which the unwinding machine 3 is mounted. Base 4
2 is disposed so as to be horizontally rotatable with respect to the bogie main body 43 in order to smoothly perform the spreading work even in a narrow place such as a corner between the slopes B.

The reason why the endless track 41 is adopted as the traveling device is that the place where the water-impermeable sheet stretching device is used is not only flat as shown in the figure, but also uneven or muddy. This is because there are many people. In order to spread the water-impermeable sheet S on the slope B using the water-impermeable sheet spreading device including the above-described units, first, the roll S1 of the water-impermeable sheet S is placed on the roller 31 of the feeding device 3. At this time, the iron core S2 is passed through the center of the roll S1 as described above. Further, in the case of the high-density polyethylene sheet at the final disposal site of industrial waste, the roll S1 is a heavy product having a width of 7 m, a length of 120 m and a weight of about 1200 kg, for example, so that the roll S1 is mounted on the roller 31 of the feeding machine 3. A chain block or the like is required to place the chain block, and this chain block may also be mounted on the base 42 in some cases.

Next, the water-blocking sheet S of the roll S1.
Of the pulley P1, from the hoisting machine 1 to the feeding end of
Through P2, the sheet extending rope L around the tip of the main body 22 of the arm 2 is connected. Next, mount the trolley 4 on the slope
As shown in FIG. 1, the main body 22 of the arm 2 is tilted in the same direction as the slope B, and the tire T at the tip of the arm support 24 and the waterproof sheet S are spread. The main body 22 is supported by being brought into contact with the slope B ′ above the slope B to be rotated.

Next, the hoisting machine 1 is operated to wind up the sheet stretching rope L, and while the water impervious sheet S is being fed out from the roll S1, the impermeable sheet S is pulled up along the slope B. And expand. And the water blocking sheet S
However, as shown in FIG. 1, when it is stretched over the entire slope B, the impermeable sheet S is cut near the feeding machine 3 and fixed to the slope B, and the sheet stretching rope L is removed. Then, the work of spreading the one water-blocking sheet S is completed.

After this, the sheet extending rope L is again connected to the new feeding end of the remaining water-impervious sheet S, and the trolley 4 is supported while maintaining the lower support of the main body 22 by the arm support 24 and the tire T. It is sufficient to move along the slope B and repeat the same work as above. According to the water impermeable sheet spreading apparatus described above, for example, four workers conventionally perform the spreading work manually performed for about 30 minutes per one water blocking sheet. Since it can be completed by a human worker in about 5 minutes for each waterproof sheet, it is possible to improve work efficiency.

The construction of the water impermeable sheet spreading apparatus of the present invention is not limited to the example shown in the above figures. For example, in the example of the figure, the carriage 4 is of the endless track type as described above,
It may be provided with a large number of rubber tires. The trolley 4 was self-propelled, but it had no power itself,
It may be towed by a tow vehicle.

In addition, various design changes can be made without departing from the scope of the present invention.

[0023]

As described above in detail, according to the water-impermeable sheet spreading apparatus of the present invention, the water-impervious sheet is supplied to the steep slope or the like from the manual operation of the water-impervious sheet, which is conventionally done manually. Since the work up to spreading can be mechanized, it is possible to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a front view showing an example of an embodiment of a waterproof sheet spreading device of the present invention.

FIG. 2 is a side view of the water impermeable sheet stretching device of FIG. 1;

[Explanation of Codes] 1 Hoisting machine 2 Arms 3 Feeding machine 4 Bogies B Slope L sheet Extension rope S Water impervious sheet

Claims (1)

[Claims] 1. A water impermeable sheet spreading device for spreading a water impermeable sheet on a slope, etc., comprising: a hoist for hoisting a sheet expanding rope connected to the water impermeable sheet; and a sheet by the hoist. At the time of winding the stretching rope, the water-impervious sheet connected to the sheet stretching rope is pulled up along the slope or the like to be stretched, and an arm supporting the sheet stretching rope and a roll shape. A water-impermeable sheet spreading device, wherein a water-impermeable sheet wound around the sheet is stretched on a movable carriage, and a pay-out machine that unwinds the sheet-imposing rope is wound up by a hoist.