JP4494500B2 - Drain material placing device and method - Google Patents

Description

  The present invention relates to an apparatus and method for placing a drain material, and is capable of efficiently placing a drain material to a predetermined depth even at a placement site where space is restricted in the height direction. The present invention relates to an installation apparatus and method.

  As a measure for promoting consolidation of soft clay ground and preventing liquefaction of loose sandy ground, a method of placing a drain material on the ground is known. In general, the drain material is placed in a long casing standing high on the ground. Therefore, in the case of a placement site where there is a restriction on the space that can be used in the height direction, it becomes difficult to drive the drain material to a deep position.

In view of this, there has been proposed a method in which the casing and the drain material are successively added and placed (for example, see Patent Document 1). However, in this proposed method, the work of adding the casing and the drain material becomes complicated, and there is a problem that there is a limit in improving the work efficiency, and the method and apparatus that can improve the efficiency of the placing work Was demanded.
JP-A-10-292361

  An object of the present invention is to provide a drain material placing apparatus and method that can efficiently place a drain material to a predetermined depth even in a placement site where space is restricted in the height direction. There is.

  In order to achieve the above object, the drain material placing device of the present invention includes a plurality of casings that can be connected to each other in the longitudinal direction, and a state in which the drain material having the anchors attached to the tips by sequentially adding these casings is inserted. In the drain material placing device provided with a driving means for driving into the ground and a pulling means for pulling out the casing driven into the ground onto the ground, the drain which is fed from the supply source while arranging the plurality of casings in parallel A station for holding the material in a state of being continuously inserted in the paralleled casings and a moving means for moving the casings one by one in the stations are provided, and in the casing driving process, they are arranged in parallel in the stations. The casing is sequentially moved to the driving position by the moving means, and the casing is pulled out. Is a casing that is exposed on the ground one by one, and in which the drain material is inserted so as to be continuous with the casing, and the casing is released from the lower casing driven into the ground. The moving device is configured to move in parallel in the station.

  Here, rollers are provided in the station so as to be near the lower end portion and near the upper end portion of the casings arranged in parallel in the station, and the drain material is wound around these rollers so as to continue to the casings arranged in parallel. It can also be configured to be inserted. Alternatively, a configuration is provided in which removable rollers are provided in the vicinity of the lower end portion and the upper end portion of the casings arranged in parallel in the station, and the drain material is wound around these rollers and is inserted so as to be continuous with the paralleled casings. It can also be. The length of the plurality of casings is, for example, 5 m or more and 7 m or less.

  The drain material placing method of the present invention includes a plurality of casings that can be connected to each other in the longitudinal direction in sequence, and the drain material inserted together with the casings is driven to a predetermined depth in the ground, and then the drain material. In the drain material placing method in which the drain material is fixed in the ground by the anchor attached to the tip of the drain, and the casing is pulled out on the ground, the plurality of casings are juxtaposed and the drain fed from the supply source The material is inserted so as to continue to these parallel casings, the drain material inserted together with the casing arranged at the driving position is driven into the ground, and the next casing is sequentially moved to the driving position. And the lower casing that is driven into the ground Repeat the process of driving the drain material inserted together with the ground into the ground by repeating the required number of casings to drive the drain material to the predetermined depth of the ground, and then place the driven casings one by one in order. With the drain material exposed to the top, the drain material is inserted so as to be continuous with the casing, and the connection between the casing exposed on the ground and the lower casing driven into the ground is released. The casings on the ground whose connection has been released are arranged in parallel.

  Here, a roller is attached to the station so as to be near the lower end and the upper end of the parallel casings, and the drain material is laid around these rollers, and is inserted so as to be continuous with the parallel casings. When moving to the driving position and when the casings pulled out on the ground are arranged in parallel, it is possible to replace the drain material with respect to the roller at a necessary location. Alternatively, when rollers are attached to the vicinity of the lower end and the upper end of the parallel casings, and the drain material is laid around these rollers to be inserted into the parallel casings, and the casings are driven into the ground. When the roller attached to the casing is removed and the driven casing is pulled out on the ground, the roller can be attached to the casing.

  According to the present invention, a plurality of casings are arranged in parallel and the drain material fed from the supply source is held in a state where the drain material is held in a state of being continuously inserted in each of the paralleled casings. The moving means sequentially moves one by one to the placement position, and the drain material inserted together with the casing arranged at the placement position is driven into the ground by the driving means, and the next casing is sequentially moved to the placement position. The step of connecting the moved casing to the lower casing driven into the ground and driving the drain material inserted together with the casing into the ground by the driving means is repeated for the required number of casings. Because of this, even if the installation site has space restrictions in the height direction, It can drive the emissions material to a predetermined depth.

  After that, with the anchor attached to the tip of the drain material, the drain material is fixed in the ground, and only the driven casing is pulled out by the pulling means one by one so as to be exposed on the ground one by one. The casing on the ground is released by releasing the connection between the casing exposed on the ground and the lower casing that is driven into the ground, while being inserted in the casing continuously to the casing. By sequentially moving them one by one in the station one by one, it is possible to pull out all the casings even at a placement site where there is a space restriction in the height direction.

  And, when the drain material is always inserted into a plurality of casings continuously and driven into the ground, the parallel casings are sequentially moved by the moving means and connected in the longitudinal direction. When pulling out the casing, the casings, which are pulled out on the ground and sequentially released from the connection, are moved by the moving means and arranged in parallel, so that the placing work can be performed quickly and work efficiency can be improved. it can.

  Hereinafter, the drain material placing device and method of the present invention will be described based on embodiments.

  As illustrated in FIG. 1, a drain material placing device 1 (hereinafter, referred to as a placing device 1) of this embodiment is attached to a vehicle body based on a backhoe. This vehicle body is provided with an outrigger so that stability when the driving device 1 is attached can be secured. The driving device 1 includes a station 2 having a frame body 3 as a basic structure, and driving and extracting means 8 installed at a lower end portion of the station 2. The station 2 is provided with an upper work scaffold 3a and a lower work scaffold 3b, and a chain block 7 as a moving means is provided at the upper end.

  In the station 2, a plurality of casings 4 (first casing 4a, second casing 4b, third casing 4c, fourth casing 4d, and fifth casing 4e) that can be connected to each other in the longitudinal direction are arranged in parallel. Is held. The number of casings 4 held at the station 2 is not limited to five, and a necessary number of casings 4 are held. The casings 4 are juxtaposed on the stand, and are held by a stopper.

  Further, rollers 5a to 5g are fixed to the station 2 so as to be near the upper end and the lower end of the second casing 4b, the third casing 4c, the fourth casing 4d, and the fifth casing 4e. Further, in the station 2, an introduction roller 6a is fixed at the upper end of the rear end, and another introduction roller 6b is fixed above the first casing 4a (a driving position described later).

  A supply roll 11 around which the drain material D is wound is supported on the rear side of the vehicle body. The drain material D fed out from the supply roll 11 is introduced into the station 2 through the introduction roller 6 a, and is laid around the respective rollers 5 a to 5 g and the introduction roller 6 b, and the respective casings 4 held in the station 2. Are interpolated to be continuous. These rollers 5a to 5g and the introduction roller 6b have a cantilever structure so that the drain material D can be easily replaced (for example, the drain material D can be routed or the drain material D that is being routed is removed). Is preferred.

  The leading end of the drain material D protrudes from the lower end of the first casing 4a, passes through the driving and pulling means 8, reaches the vicinity of the surface of the ground, and the anchor 10 is attached to the leading end. Since the drain material D is wound around the rollers 5a to 5g, 6a and 6b fixed to the station 2 and inserted into the casing 4, the drain material D and the casing 4 are relatively moved. It can be done smoothly.

  The front portion (left end portion in FIG. 1) of the station 2 where the driving and drawing means 8 is installed is the driving position of the casing 4. Each casing 4 is suspended by a chain block 7 and can move horizontally and vertically in the station 2. Therefore, using the chain block 7, the casing 4 can be moved to the driving position, or the casing 4 at the driving position can be moved to another position.

  The driving and extracting means 8 has a driving function for driving the casing 4 into the ground and a pulling function for pulling the casing 4 driven into the ground onto the ground. In this embodiment, the driving and pulling means 8 has a holding chuck 9 that moves up and down. is doing. When the holding chuck 9 moves downward with the casing 4 held, the casing 4 is driven into the ground. When the holding chuck 9 moves upward with the casing 4 held, the casing 4 driven into the ground is pulled out.

  Next, a method for placing the drain material D using the placement apparatus 1 will be described with reference to FIGS. 2 to 12, in order to make the structure of the placing device 1 easier to understand, some components such as the upper work scaffold 3a and the lower work scaffold 3b are omitted.

  First, based on FIGS. 2-8, the process of driving in the drain material D inserted in the casing 4 with the casing 4 to the predetermined depth is demonstrated. The first casing 4a is moved to the driving position of the station 2 by using the chain block 7 and is held by the holding chuck 9 of the driving and extracting means 8 as illustrated in FIG. The anchor 10 at the tip of the drain material D is set at the lower end of the first casing 4a. And the driving | pulling extraction means 8 is operated and the drain material D inserted in the 1st casing 4a is driven into the ground with the 1st casing 4a.

  After driving the first casing 4a to a certain depth, the drain material D laid around as illustrated in FIG. 3 is removed from the introduction roller 6b and the roller 5a to make it free. Then, the second casing 4b is suspended from the chain block 7 and moved to the driving position. Since the drain material D is stretched around the rollers 5b to 5g and the introduction roller 6a, the second casing 4b can be moved smoothly.

  After the second casing 4b is moved to the driving position, the lower end portion of the second casing 4b is connected to the upper end portion of the first casing 4a driven into the ground as illustrated in FIG. At that time, the drain material D is removed from the roller 5b that is wound around, and the slack of the drain material D that is slackened around the introduction roller 6b is rewound to the supply roll 11 side.

  The upper end portion of the first casing 4a and the lower end portion of the second casing 4b have a fitting structure, and can be firmly connected by attaching a pin or the like to the inserted upper end portion and lower end portion. It is like that. The second casing 4b is detached from the chain block 7 after being connected to the first casing 4a.

  The operation of suspending the casing 4 on the chain block 7, the operation of removing the suspended casing 4 from the chain block 7, the replacement operation of the drain material D with respect to the introduction roller 6b, and the operation of removing the drain material D from the roller 5b are as follows: An operator can be carried on the upper work scaffold 3a illustrated in FIG. In addition, the connection work between the upper end of the first casing 4a and the lower end of the second casing 4b and the work of removing the drain material D from the roller 5a are performed by an operator on the lower work scaffold 3b illustrated in FIG. Can do.

  Next, as illustrated in FIG. 5, the second casing 4 b is driven onto the ground by holding the second casing 4 b on the holding chuck 9 of the driving and extracting means 8. Since the drain material D is inserted so that the first casing 4a and the second casing 4b are continuous, the drain material D inserted in the second casing 4b is driven into the ground together with the second casing 4b. It will be.

  After driving the second casing 4b to a certain depth, the third casing 4c is driven to a certain depth for the third casing 4c by the same procedure as the second casing 4b. Then, the drain material D laid around as illustrated in FIG. 6 is removed from the introduction roller 6b and the roller 5e to be in a free state.

  Next, the fourth casing 4d is suspended from the chain block 7 and moved to the driving position. Since the drain material D is wound around the rollers 5f and 5g and the introduction roller 6a, the fourth casing 4d can be moved smoothly.

  After moving the fourth casing 4d to the driving position, the lower end portion of the fourth casing 4d is connected to the upper end portion of the third casing 4c driven into the ground as illustrated in FIG. At that time, the drain material D is wound around the roller 5e and is also wound around the introduction roller 6b, and the extra length of the slack drain material D is rewound to the supply roll 11 side.

  Next, similarly to the second casing 4b and the third casing 4c described above, the fourth casing 4d is held by the holding chuck 9 of the driving and extracting means 8 and driven into the ground. In this way, together with the fourth casing 4d, the drain material D inserted in the fourth casing 4d is driven into the ground.

  Next, in this embodiment, the drain material D that is being laid is removed from the introduction roller 6b and the rollers 5e to 5g to be in a free state. Then, the fifth casing 4e is moved to the driving position using the chain block 7, and the lower end portion of the fifth casing 4e is connected to the upper end portion of the fourth casing 4d driven into the ground as illustrated in FIG. . At that time, the drain material D is wound around the introduction roller 6b, and the slack drain material D is rewound to the supply roll 11 side.

  Next, the driving step is completed by driving the drain material D inserted together with the fifth casing 4e into the ground.

  In this way, the drain material D inserted together with the casing 4 is driven into the ground, the next casing 4 is sequentially moved to the driving position, and the moved casing 4 is moved to the lower casing 4 driven into the ground. The step of connecting and driving the drain material D inserted together with the moved casing 4 into the ground is repeated for the required number of casings 4.

  When the casing 4 is moved to the driving position, the replacement work of the drain material D is performed on the rollers 5a to 5g and the introduction roller 6b at necessary positions so that the casing 4 to be moved can be smoothly moved. What is necessary is just and it is not limited to the replacement work illustrated in the said embodiment.

  Since a plurality of casings 4 are held in parallel with the station 2 on the ground, a large space in the height direction becomes unnecessary. Therefore, even in a placement site where space is restricted in the height direction, the drain material D can be driven to a predetermined depth by sequentially adding and driving a plurality of casings 4. The length of the casing 4 is, for example, about 5 m to 7 m, and when the drain material D is driven to a depth of about 20 m, four casings 4 having a length of 5 m may be added. Compared to the case of using a single casing having a length of 20 m as in the prior art, it is less likely to be restricted in the height direction.

  Moreover, the casings 4 in parallel at the station 2 are moved to the driving position using the chain block 7, and the casings 4 are kept in a state where the drain material D is inserted so as to be continuous with the casing 4. Since it only has to be connected in the longitudinal direction, the work can be performed quickly, and the complexity of the work is reduced.

  Next, with reference to FIGS. 9 to 12, a drawing process for drawing the casing 4 driven into the ground onto the ground will be described. This drawing process is the reverse procedure of the process of driving the casing 4 described above.

  After the drain material D is driven to a predetermined depth, as shown in FIG. 9, the driven casing 4 is held by the holding chuck 9 of the driving and extracting means 8, and the driving and extracting means 8 is operated and pulled onto the ground. Unplug. At this time, the drain material D is continuously inserted in the connected casing 4 and is first drawn out until the entire length of the fifth casing 4e is exposed on the ground. In this state, the connection between the lower end portion of the fifth casing 4e and the upper end portion of the fourth casing 4d is released. After releasing the connection, the drain material D stretched around the introduction roller 6b is removed to make it free.

  Next, as illustrated in FIG. 10, the fifth casing 4 e released from the connection with the fourth casing 4 d is suspended from the chain block 7 and moved to the rear position of the station 2. Then, the drain material D is wound around the introduction roller 6b and the rollers 5e to 5g. The suspended fifth casing 4 e is removed from the chain block 7 at the moved position and held in the station 2.

  The above-described drawing step is sequentially performed on the fourth casing 4d, the third casing 4c, the second casing 4b, and the first casing 4a, and the free casing 4 is used in the station 2 by using the chain block 7. Move and hold in parallel. In this embodiment, as illustrated in FIG. 11, the first casing 4 a is pulled out on the ground, and the drain material D is inserted so as to be continuous with all the casings 4. By pulling all the casings 4 in parallel, the drawing process is completed.

  In this way, the casing 4 is pulled out so as to be sequentially exposed on the ground one by one, and the casing 4 exposed on the ground with the drain material D being inserted so as to be continuous with the casing 4, The connection with the lower casing 4 that has been driven into the ground is released, and the casings 4 on the ground that have become free are arranged in parallel in the station 2 one by one. All casings 4 can be pulled out even at a placement site with restrictions.

  Moreover, since the casing 4 that has been released after being released from the connection may be moved in parallel with the drain material D inserted into the casing 4 continuously using the chain block 7, The work can be performed quickly, and the complexity of the work is reduced.

  When the casing 4 at the driving position is pulled out and moved in parallel, the drain material D is replaced with the rollers 5a to 5g and the introduction roller 6b at necessary portions so that the casing 4 to be moved can be moved smoothly. Do the work.

  Next, as illustrated in FIG. 12, the drain material D protruding from the lower end of the first casing 4a is cut. Since the drain material D driven into the ground is fixed in the ground by the anchor 10 attached to the tip, by pulling only the casing 4 on the ground by the above-described drawing process, a predetermined depth of the ground is obtained. It will be set up. By cutting the drain material D in this manner, the operation of placing the drain material D at that position is completed, so that the drain material D can be efficiently driven to a predetermined depth.

  In order to drive the drain material D to the next position, the vehicle body is moved so that the driving position of the station 2 matches the next driving position. And the anchor 10 may be attached to the front-end | tip of the drain material D which protrudes from the lower end part of the 1st casing 4a, and the process illustrated in FIGS.

  Thus, according to the present invention, after the drain material D is placed at a certain position, the plurality of casings 4 are arranged in parallel in the station 2, and the drain material D fed from the supply roll 11 is arranged in parallel. Since it is held in a state of being continuously inserted into the casing 4, simply by attaching the anchor 10 to the tip of the drain material D, it is possible to immediately perform the operation of placing the drain material D at the next position.

  In the case of a conventional long casing, if the casing is damaged, the casing cannot be used at all, and another casing needs to be used. However, according to the present invention, only the damaged casing 4 is replaced with another casing 4. Because it is only necessary to replace it with, it is easy to maintain. Moreover, since the casing 4 can be shortened, there is an advantage that the casing 4 can be easily transported and the space for storing the casing 4 can be reduced. Furthermore, since the drain material D can be driven to the required depth only by changing the number of casings 4 to be added, it becomes easy to cope with various driving sites with different driving depths.

  Next, another embodiment will be described. In this embodiment, instead of the introduction roller 6b and the rollers 5a to 5g of the above-described embodiment, the roller 5 is provided in the vicinity of the upper end portion of the first casing 4a, and the second casing 4b, the third casing 4c, and the fourth casing are provided. The rollers 5 are provided in the vicinity of the upper end and the lower end of the 4d and the fifth casing 4e, and these rollers 5 are detachable by bolts or the like. Other configurations are the same as those of the above-described embodiment.

  The drain material D fed out from the supply roll 11 is introduced into the station 2 through the introduction guide roller 6 fixed to the station 2, and is wound around each roller 5 to be held in the station 2. 4 is inserted continuously. Since the drain material D is looped around the rollers 5 provided in the respective casings 4 and inserted into the casings 4, the drain material D and the casing 4 can smoothly move relative to each other. ing.

  Based on FIGS. 13-20, the placement method of the drain material D using the placement apparatus 1 of this embodiment is demonstrated. In FIG. 13 to FIG. 20, in order to make the structure of the placing device 1 easier to understand, some configurations such as the upper work scaffold 3 a and the lower work scaffold 3 b are omitted.

  First, a process of driving the drain material D to a predetermined depth will be described with reference to FIGS. Using the chain block 7, the first casing 4 a is moved to the driving position of the station 2 and held by the holding chuck 9 of the driving and extracting means 8 as illustrated in FIG. 13. The anchor 10 at the tip of the drain material D is set at the lower end of the first casing 4a. Then, the driving / pulling means 8 is operated to drive the drain material D inserted in the first casing 4a into the ground together with the first casing 4a.

  After the first casing 4a is driven to a certain depth, the second casing 4b is suspended from the chain block 7 and moved to the driving position as illustrated in FIG. Since the drain material D is wound around the roller 5, the second casing 4b can be moved smoothly.

  Here, the roller 5 near the upper end of the first casing 4a and the roller 5 near the lower end of the second casing 4b are removed. And the lower end part of the 2nd casing 4b is connected with the upper end part of the 1st casing 4a driven into the ground. The second casing 4b is detached from the chain block 7 after being connected to the first casing 4a.

  The operation of suspending the casing 4 on the chain block 7 and the operation of removing the suspended casing 4 from the chain block 7 can be performed by an operator on the upper work scaffold 3a illustrated in FIG. Moreover, the removal work of the roller 5 with respect to the casing 4 and the attachment work of the roller 5 with respect to the casing 4 which will be described later can be performed by an operator on the lower work scaffold 3b illustrated in FIG.

  Next, as illustrated in FIG. 15, the second casing 4 b is driven onto the ground by holding the second casing 4 b on the holding chuck 9 of the driving and extracting means 8. Since the drain material D is inserted so that the first casing 4a and the second casing 4b are continuous, the drain material D inserted in the second casing 4b is driven into the ground together with the second casing 4b. It will be.

  After driving the second casing 4b to a certain depth, the driving operation is performed on the third casing 4c and the fourth casing 4d in the same manner as the second casing 4b described above, so that the drain material D is obtained. Drive into the ground. Thus, the drain material D inserted together with the casing 4 is driven into the ground, and the next casing 4 is sequentially moved to the driving position, and the moved casing 4 is moved to the lower casing 4 driven into the ground. The step of connecting and driving the drain material D inserted together with the moved casing 4 into the ground is repeated for the required number of casings 4.

  In this embodiment, as illustrated in FIG. 16, the fifth casing 4e is moved to the driving position using the chain block 7, and the roller 5 in the vicinity of the upper end portion of the fourth casing 4d and the vicinity of the lower end portion of the fifth casing 4c. The lower roller 5 is removed, and the lower end of the fifth casing 4e is connected to the upper end of the fourth casing 4d driven into the ground. Next, as illustrated in FIG. 17, the driving step is completed by driving the drain material D inserted together with the fifth casing 4e into the ground.

  Also in this embodiment, as in the previous embodiment, even in a placement site where there is a space restriction in the height direction, a plurality of casings 4 are sequentially added and driven, whereby the drain material D is given a predetermined amount. It can be driven to the depth, and the work can be performed quickly, reducing the complexity of the work.

  Next, with reference to FIGS. 18 to 20, a drawing process for drawing the casing 4 driven into the ground onto the ground will be described. This drawing process is the reverse procedure of the process of driving the casing 4 described above.

  After the drain material D is driven to a predetermined depth, as shown in FIG. 18, the driven casing 4 is held by the holding chuck 9 of the driving and extracting means 8, and the driving and extracting means 8 is operated and pulled on the ground. Unplug. At this time, the drain material D is continuously inserted in the connected casing 4 and is first drawn out until the entire length of the fifth casing 4e is exposed on the ground. In this state, the connection between the lower end portion of the fifth casing 4e and the upper end portion of the fourth casing 4d is released. The roller 5 is attached to the lower end portion of the fifth casing 4e and the upper end portion of the fourth casing 4d, respectively, and the drain material D is wound around the attached roller 5.

  Next, as illustrated in FIG. 19, the fifth casing 4 e released from the connection with the fourth casing 4 d is hung on the chain block 7 and moved to the rear position of the station 2. Since the drain material D is wound around the roller 5, the fifth casing 4e can be smoothly moved. The suspended fifth casing 4 e is removed from the chain block 7 at the moved position and held in the station 2.

  The above-described drawing step is sequentially performed on the fourth casing 4d, the third casing 4c, the second casing 4b, and the first casing 4a, and the free casing 4 is used in the station 2 by using the chain block 7. Move and hold in parallel. In this embodiment, as illustrated in FIG. 20, the first casing 4 a is pulled out on the ground, and the drain material D is inserted so as to be continuous with all the casings 4. By pulling all the casings 4 in parallel, the drawing process is completed.

  In this way, the casing 4 is pulled out so as to be sequentially exposed on the ground one by one, and the casing 4 exposed on the ground with the drain material D being inserted so as to be continuous with the casing 4, The connection with the lower casing 4 that has been driven into the ground is released, and the casings 4 on the ground that have become free are arranged in parallel in the station 2 one by one. All casings 4 can be pulled out even at a placement site with restrictions.

  Moreover, since the casing 4 that has been released after being released from the connection may be moved in parallel with the drain material D inserted into the casing 4 continuously using the chain block 7, The work can be performed quickly, and the complexity of the work is reduced.

  Next, as illustrated in FIG. 20, the drain material D protruding from the lower end of the first casing 4a is cut. By cutting the drain material D in this manner, the operation of placing the drain material D at that position is completed, so that the drain material D can be efficiently driven to a predetermined depth.

  In order to drive the drain material D to the next position, the vehicle body is moved so that the driving position of the station 2 matches the next driving position. And what is necessary is just to perform the process illustrated in FIGS. 13-20 by attaching the anchor 10 to the front-end | tip of the drain material D which protrudes from the lower end part of the 1st casing 4a.

It is a side view which illustrates the placement apparatus of the drain material of this invention. It is explanatory drawing which illustrates the process which drives a drain material with a 1st casing by the placement apparatus of the drain material of FIG. It is explanatory drawing which illustrates the process of removing the drain material currently hung around the required roller. It is explanatory drawing which illustrates the process of connecting the upper end part of a 1st casing, and the lower end part of a 2nd casing. It is explanatory drawing which illustrates the process of driving in a drain material with a 2nd casing. It is explanatory drawing which illustrates the process of removing the drain material currently hung around the required roller. It is explanatory drawing which illustrates the process of driving in a drain material with a 4th casing. It is explanatory drawing which illustrates the process of driving in a drain material with a 5th casing. It is explanatory drawing which illustrates the process of extracting a 5th casing on the ground. It is explanatory drawing which illustrates the process of moving a 5th casing so that it may parallel in a station. It is explanatory drawing which illustrates the process of extracting a 1st casing on the ground. It is explanatory drawing which illustrates the process of cut | disconnecting the drain material driven into the ground in the ground surface vicinity. It is explanatory drawing which illustrates the process of driving in drain material with a 1st casing by another embodiment. It is explanatory drawing which illustrates the process of connecting the upper end part of a 1st casing, and the lower end part of a 2nd casing. It is explanatory drawing which illustrates the process of driving in a drain material with a 2nd casing. It is explanatory drawing which illustrates the process of connecting the upper end part of a 4th casing, and the lower end part of a 5th casing. It is explanatory drawing which illustrates the process of driving in a drain material with a 5th casing. It is explanatory drawing which illustrates the process of pulling out the 5th casing on the ground and releasing the connection with the 4th casing. It is explanatory drawing which illustrates the process of moving a 5th casing so that it may parallel in a station. It is explanatory drawing which illustrates the process of cut | disconnecting the drain material driven into the ground near the ground surface, after drawing a 1st casing on the ground.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Placing device 2 Station 3 Frame 3a Upper work scaffold 3b Lower work scaffold 4, 4a, 4b, 4c, 4d, 4e Casing 5, 5a, 5b, 5c, 5d, 5e, 5f, 5g Roller 6a, 6b Introduction Roller 7 Chain block (moving means)
8 Punching and drawing means 9 Holding chuck 10 Anchor 11 Supply roll D Drain material

Claims (7)

  A plurality of casings that can be connected to each other in the longitudinal direction, and a means for driving into the ground in a state in which drains having the anchors attached to the tips by sequentially adding these casings are inserted, and the casing driven into the ground is placed on the ground. In the drain material placing device provided with a pulling means for pulling out, the plurality of casings are arranged in parallel and the drain material fed out from a supply source is inserted in a state continuous with these juxtaposed casings. A holding station and a moving means for moving the casing one by one in the station are provided. In the casing driving step, the casings arranged in parallel in the station are sequentially moved to the driving position by the moving means, and the casing is pulled out. In the process, the drain material is exposed on the ground one by one and the drain material is A drain which is configured to move the casing, which is released from the connection with the lower casing driven into the ground, in a state of being inserted continuously to the ring, so as to be parallel in the station by the moving means. Material placement device.   A structure in which rollers are provided in the station so as to be near the lower end and upper end of the casings arranged in parallel in the station, and the drain material is wound around these rollers and is inserted so as to be continuous with the arranged casings. The drain material placing device according to claim 1.   Removable rollers are provided in the vicinity of the lower end and the upper end of the casings arranged in parallel in the station, and the drain material is wound around these rollers, and is inserted so as to be continuous with the arranged casings. The drain material placing device according to claim 1.   The drain material placing device according to any one of claims 1 to 3, wherein a length of the plurality of casings is 5 m or more and 7 m or less.   A plurality of casings that can be connected to each other in the longitudinal direction are sequentially added, and after the drain material inserted together with these casings is driven to a predetermined depth of the ground, the drain material is placed in the ground by an anchor attached to the tip of the drain material. In the drain material placing method in which the casing is pulled out on the ground in a fixed state, the plurality of casings are arranged in parallel, and the drain material fed from the supply source is continuously connected to the parallel casing. Insert the drain material inserted together with the casing arranged in the driving position into the ground, and sequentially move the next casing to the driving position, and the moved casing and the lower part driven into the ground Connect the casing and drain material inserted with the moved casing. The process of driving into the board is repeatedly performed on the required number of casings to drive the drain material to a predetermined depth of the ground, and then the driven casings are pulled out one by one so as to be sequentially exposed on the ground, With the drain material inserted in the casing so as to be continuous with the casing, the casing exposed on the ground is released from the lower casing driven into the ground, and the casing on the ground is released. A method of placing drain material that is arranged in parallel.   Rollers are attached to the station so that they are in the vicinity of the lower end and the upper end of the parallel casings, and the drain material is laid around these rollers, and is inserted continuously to the parallel casings. 6. The method for placing a drain material according to claim 5, wherein the drain material is replaced with a roller at a necessary portion when the casing is pulled out on the ground when moving.   When the rollers are attached to the vicinity of the lower end portion and the upper end portion of the parallel casings, the drain material is laid around these rollers, and inserted into the casings in parallel, and when the casings are driven into the ground, 6. The method for placing a drain material according to claim 5, wherein when the roller attached to the casing is removed and the driven casing is pulled out on the ground, the roller is attached to the casing.

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