JP2013087445A - Burying device and burying method for drain material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burying device and a burying method for a drain material, capable of preventing enlargement of the burying device of a drain material, burying the drain material even on a burial site with limitation on a height direction, preventing the drain material from being damaged during burial work, and preventing efficiency of the burial work from substantially declining.SOLUTION: The burying device of the drain material includes a tubular member 44 or the like whose entire length is extendable and which is provided with an openable and closable lid part 46 on a lower end part, an anchor 41, a drain material 42, a rod-like member 50 having a locking part 52, and a placing mechanism part 14. In a space 78 formed inside the tubular member 44 or the like buried underground in the state of closing the lid part 46, the anchor 41 and the drain material 42 are inserted in the state that the rod-like member 50 is locked, the tubular member 44 or the like and the rod-like member 50 are pulled out from the underground in the state of opening the lid part 46, and the anchor 41 and a length part on the lower end side of the drain material 42 are kept buried underground.

Description

  The present invention relates to a drain material burying device used for burying a drain material for sucking moisture into the ground of soft ground in order to extract moisture from soft ground containing a lot of moisture and improve the ground. It relates to the burial method.

  FIGS. 15 to 17 are views referred to for explaining a conventional drain material burying apparatus 2 and a burying method using the same.

  In the conventional drain material burying device 2 shown in FIG. 15, the drain material 4 (drainage material) having sufficient water permeability and formed in a strip shape is wound around the drain material supply reel 10 in the radial direction. It was done. The drain material 4 was unwound from the drain material supply reel 10 toward the upper left in the figure, and was continuously drawn out in the length direction.

  The drain material 4 pulled out from the drain material supply reel 10 is wound around the transport roller 12 at a position in the middle of the moving length direction, and the length direction of the drain material 4 thereafter is It was suspended in a substantially vertical direction (vertical direction) with respect to the buried ground 7.

  The length part of the drain material 4 on the downstream side from the conveying roller 12 is supported by the eaves structure 3 in FIG. 15, and a single tubular tubular member 8 having a length in the vertical direction in the figure, It was supposed to be inserted through a shaft hole 8a formed along the axis.

  An anchor 6 formed in a disc shape in which the outer diameter of the lower end portion of the drain member 4 is inserted into the shaft hole 8 a of the tubular member 8 and is lower than the tubular member 8. Was connected. The lower end surface (tip surface) of the tubular member 8 is in contact with the upper surface of the anchor 6.

  And the vehicle 15 equipped with the placement mechanism part 14 which is arrange | positioned so that the outer peripheral part of the tubular member 8 may be pinched | interposed and can drive the pinched tubular member 8 to the up-down direction in the figure is buried in drain material It was used in a part of the device 2.

  Due to the placement mechanism 14, the conventional drain material burying device 2 drives the tubular member 8 into the ground below the buried ground 7, or places the tubular member 8 that has been driven into the ground above the buried ground 7. And was able to be extracted.

  Next, a burying method using the conventional drain material burying apparatus 2 will be described with reference to FIGS.

  As shown in FIG. 15, the lower end portion of the tubular member 8 arranged with the outer peripheral portion near the lower end portion sandwiched by the placing mechanism portion 14 in the drawing is located above the embedded ground 7.

  As shown in FIG. 16, the tubular member 8 is driven downward in the figure by rotating the driving mechanism 14 until the lower end of the tubular member 8 reaches a predetermined depth position below the buried ground 7. , Was supposed to be buried in the ground.

  At this time, the anchor 6 together with the tubular member 8 is also embedded in the ground below the embedded ground 7. Moreover, the lower end part of the drain material 4 connected to the anchor 6 is embedded in the lower part of the ground together with the anchor 6, and the distance from the position before the anchor 6 is embedded to the depth position after being embedded. As much as this length, it was drawn out from the drain material supply reel 10 and extended.

  When it is confirmed by an anchor depth detection sensor (not shown) that the anchor 6 has reached a predetermined depth position below the buried ground 7, as shown in FIG. 17, the lower ends of the anchor 6 and the drain material 4 Only the tubular member 8 is pulled out above the buried ground 7 by the placing mechanism portion 14 while leaving the length portion of the ground portion in the ground.

  When the tubular member 8 rises to some extent, the upper surface of the anchor 6 is covered with the surrounding earth and sand, so that the anchor 6 cannot be pulled out, and the lower end portion of the drain material 4 connected to the anchor 6 is continuous with it. The length portion of the drain material 4 is embedded in a predetermined depth position below the embedded ground 7.

  Then, the drain material 4 is cut at a height portion protruding upward from the buried ground 7, so that the lower end portion of the drain material 4 is buried at a predetermined depth position below the buried ground 7, and the upper end thereof With the portion protruding upward from the buried ground 7, the length portions other than the upper and lower end portions were buried in the vertical direction in the ground.

  With such a conventional drain material embedding device 2 and embedding method, after the drain material 4 is embedded at a number of locations on one side of the area where the soft ground needs to be improved, a load is applied on the embedded ground 7. As a result of the passage of a long period of time, the water squeezed out from the soft ground containing a large amount of water penetrates the skin of the drain material 4 and penetrates into the inside. It was drained by flowing out on the buried ground 7 and being able to improve the soft ground into a solid ground (see Patent Document 1).

  However, this conventional drain material embedding device 2 and embedding method has a configuration in which one circular tubular member 8 having a certain length is embedded in the ground below the embedding ground 7. When the length from the buried ground 7 where the leading end portion (lower end portion) of the drain material 4 is embedded to a predetermined depth position below it is large, there are the following problems.

  That is, when the length from the buried ground 7 where the drain material 4 is embedded to a predetermined depth position below it is increased, the length of the tubular member 8 needs to be increased accordingly. It is necessary to increase the height dimension of the second cage structure 3 accordingly. For this reason, there existed a problem of causing the enlargement of the burial | buried apparatus 2 of a drain material.

  In addition, since the ground where the drain material 4 needs to be buried is a soft ground in the first place, if the height of the ridge structure 3 of the drain material embedding apparatus 2 is large, the drain material embedding apparatus 2 is When installed, it could become unstable and fall over. For this reason, in order to prevent the drain material embedding device 2 from overturning, there has been a problem that it is necessary to perform reinforcement such as laying a metal plate on the ground where the drain material embedding device 2 is installed in advance.

  In addition, if the height of the eaves structure 3 of the drain material embedding device 2 is large, there is a restriction such that a transmission line is stretched over the ground where the drain material 4 is embedded. In the place, there has been a problem that it is impossible to embed the drain material 4 using the drain material embedding apparatus 2 itself.

  In order to solve the problems when the conventional drain material burying apparatus 2 and the burying method are used, another conventional drain material burying apparatus 20 as shown in FIGS. 18 and 19 has been devised. It was.

  FIGS. 18 and 19 are views referred to for explaining another conventional drain material burying device 20 and a burying method using the same.

  As shown in FIG. 18, another conventional drain material burying apparatus 20 includes a tubular member 24A in which a drain material 22 drawn from a drain material supply reel 10 is buried to some extent below the ground, and the tubular member 24A. The tubular member 24B that is connected in series to the upper portion of the casing 24 and sandwiched between the placement mechanism portion 14 and the plurality of tubular members 24C that are arranged in parallel in the casing 26 are inserted in advance into the respective shaft holes 24a. .

  The drain material 22 pulled out from the drain material supply reel 10 is wound around a plurality of transport rollers 28 installed vertically in the casing 26 at a position in the middle of the moving length direction.

  Of the plurality of tubular members 24A, 24B, and 24C of the drain member 22, the anchor 6 is connected to the lower end of the tubular member 24A provided on the lowermost side through the shaft hole 24a. On the upper surface of the anchor 6, the lower end surface of the tubular member 24 </ b> A provided on the lowermost side is disposed in contact.

  And this conventional drain material burying device 20 is constructed in such a manner that the tubular members 24A and 24B connected in series with each other are buried to some extent below the ground, and then arranged in the casing 26 as shown in FIG. The tubular member 24C is moved to the left in the drawing so as to be disposed above the tubular member 24B sandwiched between the placing mechanism portions 14.

  The anchor 6 reaches a predetermined depth position below the buried ground 7 by connecting the lower end portion of the other tubular member 24C in series with the upper end portion of the tubular member 24B sandwiched between the placing mechanism portions 14. In the meantime, the plurality of tubular members 24A, 24B, 24C can be connected to extend their entire length.

  When it is confirmed by an anchor depth detection sensor (not shown) that the anchor 6 has reached a predetermined depth position below the buried ground 7, as shown in FIG. 19, the lower ends of the anchor 6 and the drain material 22 The plurality of tubular members 24A, 24B, and 24C are pulled out from the embedded ground 7 by the driving mechanism unit 14 while leaving the length portion in the ground.

  At this time, among the plurality of tubular members 24A, 24B, 24C sandwiched and supported by the placement mechanism 14, the uppermost tubular member 24C is released from the lower tubular member 24B. Then, the inside of the casing 26 is moved to the right in the figure, and the plurality of tubular members 24A, 24B, 24C are sequentially pulled out one by one while being pulled upward by the driving mechanism portion 14.

  In the drain material 22, a plurality of tubular members 24 </ b> A, 24 </ b> B, 24 </ b> C are connected in series with each other and embedded below the embedded ground 7, or a plurality of tubular members 24 </ b> A, 24 </ b> B, 24 </ b> C are embedded from the embedded ground 7. Even in the process of being pulled upward and moving in the casing 26, the tubular members 24A, 24B, 24C are always inserted into the shaft holes 24a, and all the tubular members 24A, 24B, 24C are embedded. After being pulled out above the ground 7, it was cut at a predetermined height protruding upward from the buried ground 7.

  Depending on the conventional drain material embedding device 20 and the embedding method, a plurality of tubular members 24A, 24B, and 24C can be connected in series to extend the entire length thereof. An increase in the height dimension can be prevented, and an increase in the size of the drain material embedding device 20 can also be prevented (see Patent Document 2).

JP 2000-160544 A JP 2010-53659 A

  However, in the other conventional drain material embedding device 20 and the embedding method, the plurality of tubular members 24A, 24B, 24C are connected in series or the connection is released with the drain material 22 inserted. As a result, the drain member 22 and the tubular members 24A, 24B, and 24C come into contact with each other, and the drain member 22 having a significantly lower strength than the tubular members 24A, 24B, and 24C may be damaged, and the function thereof may be significantly impaired. There was a problem that there was.

  Further, when connecting or releasing the plurality of tubular members 24A, 24B, 24C in series, the drain material 22 is repeatedly wound around and removed from the drain material roller 28. Also, there is a problem that the drain material 22 may be damaged.

  Further, the drain material 22 is not damaged by connecting the plurality of tubular members 24A, 24B, 24C in series, releasing the connection, and winding or removing the drain material 22 on the drain material roller 28. However, there is also a problem that the work efficiency is remarkably lowered when carefully performed.

  Therefore, in view of the above problems, it is possible to prevent an increase in the size of the drain material burying device, and it is possible to bury the drain material even in a burial site where there is a restriction in the height direction. It is an object of the present invention to provide a drain material burying apparatus and method that can prevent damage during the burying operation and can also prevent the efficiency of the burying operation from significantly decreasing.

In order to solve the above problems, a drain material embedding device according to the present invention is:
A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
A placement mechanism that can embed the tubular member in the ground or pull the tubular member buried in the ground from the ground; and
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. It is characterized by being able to

Further, the drain material embedding device according to the present invention is:
It has a plurality of suspending members which are alternately engaged with the upper end portion of the drain material and suspend the lower drain material alternately from the upper end portion.

Further, the drain material embedding method according to the present invention includes:
A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
Using a draining material embedding device comprising a placement mechanism that can embed the tubular member in the ground or pull the tubular member embedded in the ground from the ground,
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. It is characterized by being able to.

According to such a drain material embedding device of the present invention,
A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
A placement mechanism that can embed the tubular member in the ground or pull the tubular member buried in the ground from the ground; and
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. By making it possible to
It is possible to prevent an increase in the size of the drain material burying device, and it is possible to bury the drain material even at a burial site where the height direction is restricted, and to prevent the drain material from being damaged during the burying operation. It is possible to prevent the efficiency of the burying work from being significantly reduced.

In addition, according to such a drain material embedding method of the present invention,
A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
Using a draining material embedding device comprising a placement mechanism that can embed the tubular member in the ground or pull the tubular member embedded in the ground from the ground,
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. By being able to
It is possible to prevent an increase in the size of the drain material burying device, and it is possible to bury the drain material even at a burial site where the height direction is restricted, and to prevent the drain material from being damaged during the burying operation. It is possible to prevent the efficiency of the burying work from being significantly reduced.

It is the schematic which shows the embedding apparatus 40 of the drain material which concerns on one embodiment of this invention. FIG. 2A is a side cross-sectional view of the tubular member 44 shown in FIG. 1, and FIG. 2B is a side cross-sectional view of the lower end thereof in a closed state, and FIG. FIG. 2 (c) is a bottom view of the tubular member 44 of FIG. 2 (a). FIG. 3A is a top view of the anchor 41 shown in FIG. 1, and FIG. 3B is a cross-sectional view taken along the line AA in FIG. FIG. 4A is a side sectional view, FIG. 4B is a front view thereof, and FIG. 4C is a semicircular disk portion 51. FIG. 6 is a top view of the state in which is placed on the upper surface 41c of the anchor 41 as viewed from above. It is a figure which shows the flowchart for demonstrating the procedure of the embedding method of the drain material. It is a figure for demonstrating the tubular member embedding process (S1) shown in FIG. 5, Comprising: When it is embedded in the predetermined depth position below the embedding ground 7 of the embedding apparatus 40 of the drain material shown in FIG. It is the elements on larger scale which expand and show the tubular members 44, 48, and 49 and its vicinity. FIG. 6 is a diagram for explaining the drain material insertion step (S2) shown in FIG. 5 and is a partially enlarged view showing the vicinity of the tubular member 44 of the drain material embedding device 40 shown in FIG. It is a figure for demonstrating the drain material insertion process (S2) shown in FIG. 5, Comprising: It is sectional drawing of the BB arrow in FIG. FIG. 6 is a diagram for explaining the drain material insertion step (S2) shown in FIG. 5, and is a partially enlarged view showing the vicinity of the placement mechanism portion 14 of the drain material embedding device 40 shown in FIG. 1. FIG. 6 is a diagram for explaining the drain material fixing step (S3) shown in FIG. 5 and is a partially enlarged view showing the vicinity of the tubular member 44 of the drain material embedding device 40 shown in FIG. FIG. 6 is a diagram for explaining the drain material fixing step (S3) shown in FIG. 5 and is a partially enlarged view showing the vicinity of the tubular member 44 of the drain material embedding device 40 shown in FIG. FIG. 6 is a diagram for explaining the tubular member drawing step (S4) shown in FIG. 5 and is a partially enlarged view showing the tubular member 44 of the drain material embedding device 40 shown in FIG. FIG. 6 is a view for explaining the tubular member drawing step (S4) shown in FIG. 5 and is a partially enlarged view showing the vicinity of the placing mechanism portion 14 of the drain material embedding device 40 shown in FIG. FIG. 6 is a view for explaining the tubular member drawing step (S4) shown in FIG. 5, and is a partially enlarged view showing the vicinity of the drain material 42 of the drain material embedding device 40 shown in FIG. 1. It is the schematic which shows the embedding apparatus 2 of the conventional drain material. FIG. 16 is a schematic diagram for explaining a burying method using the conventional drain material burying apparatus 2 shown in FIG. 15. FIG. 16 is a schematic diagram for explaining a burying method using the conventional drain material burying apparatus 2 shown in FIG. 15. It is the schematic which shows the other embedding apparatus 20 of the conventional drain material. FIG. 19 is a schematic diagram for explaining a burying method using the conventional drain material burying device 20 shown in FIG. 18.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the embedding apparatus and embedding method of the drain material which concerns on this invention is demonstrated concretely based on drawing.

  FIGS. 1 to 14 are views referred to for explaining a drain material embedding device 40 and an embedding method using the drain material embedding device 40 according to an embodiment of the present invention.

  As shown in FIG. 1, the drain material embedding device 40 according to an embodiment of the present invention uses high-tensile steel as its material and connects the ends in the axial direction to each other. The three tubular members 44, 48, 49 that can extend the entire length, and the distal end portion of the drain member 42 that is formed in an outer shape that can be loosely fitted into the shaft holes 44a, 48a, 49a and has a length. Are connected to each other, a rod-like member 50 having a semi-disc 51 (locking portion) for locking the anchor 41 at the lower end thereof, and a driving mechanism portion 14 mounted on the vehicle 15. It has become.

  As shown in FIG. 2, two lid portions 46 that can be opened and closed are provided at the lower end portion of the tubular member 44.

  In the drain material embedding device 40 shown in FIG. 1, the drain material 42 (drainage material) formed in a strip shape having sufficient water permeability in the length direction is multiplexed in the radial direction of the drain material supply reel 54 ( It is wound in a continuous winding form. The drain material 42 is rewound from the drain material supply reel 54 toward the left in the figure, and is continuously drawn out in the length direction.

  The drain material 42 drawn out from the drain material supply reel 54 is wound around the transport roller 56 at an angle of approximately 90 ° at a position in the middle of the moving length direction, and the subsequent drain material 42. Is suspended in a substantially vertical direction (vertical direction) with respect to the buried ground 7.

  An anchor 41 is connected to the lower end portion (tip end portion) of the drain material 42. The rod-shaped member 50 that pushes the anchor 41 from above in the figure has a weight, and the drain material 42 is pulled downward by the gravity of the rod-shaped member 50, so that the drain material 42 has its lower end. A tension is applied in the length direction between the section and the conveying roller 56.

  As shown in FIGS. 3 (a) and 3 (b), the anchor 41 has a lower disc portion 41a and a U-shaped cross section having a length substantially the same as the diameter of the disc portion 41. The portions 41b are integrally fixed to each other so that a substantially rectangular opening 41d is formed between them.

  And as shown in FIG. 7, the cross section along the connection part 41b of the anchor 41 is formed in the inverted T shape. The lower end portion of the drain material 42 is connected to the anchor 41 by being inserted in the opening portion 41d of the anchor 41 and fixed in a state of being overlapped in the middle of its own length direction.

  The outer diameter dimension of the disk part 41a below the anchor 41 is formed smaller than the inner diameter dimension of the shaft holes 44a, 48a, 49a of the tubular members 44, 48, 49.

  For this reason, the anchor 41 is loosely fitted into the shaft holes 44a, 48a, 49a of the three tubular members 44, 48, 49 together with the lower end portion of the drain member 42, and easily moves in the length direction thereof. It can be done.

  Among the three tubular members 44, 48, 49 in which the end portions in the axial direction shown in FIG. 1 are connected in series, the tubular member 44 arranged on the lowermost side is shown in FIG. 2 (a). Thus, it has the cylindrical main-body part 44b by which the axial hole 44a was formed along the axial direction (up-down direction in the figure).

  And the hinge part 45 is provided in each of the right-and-left both ends in FIG. 2 (a) in the lower end part of the main-body part 44b of the tubular member 44, and the two cover parts 46 are each via these hinge parts 45. Is provided.

  As shown in FIG. 2C, each of the two lid portions 46 of the tubular member 44 is formed by dividing a circle formed by an outer contour in a cross section perpendicular to the axial direction of the main body portion 44b of the tubular member 44 into two parts. It is formed in a semicircular plate shape, and is provided so as to be rotatable with respect to the main body 44 b by a hinge 45.

  As shown in FIG. 2 (a), the two lid portions 46 are arranged in a direction perpendicular to the axis of the main body portion 44b so that the inner side surfaces 46a thereof are continuous on the same plane. An arrangement state (hereinafter referred to as a closed state) can be achieved. In this closed state, the lower end of the main body 44 b of the tubular member 44 is closed by the two lids 46.

  Further, as shown in FIG. 2 (b), the two lids 46 in the closed state are opened in the direction of the arrow in the figure, and the two lids such that the inner side surfaces 46a of the two lids 46 face each other. Each of the portions 46 can also be arranged in a direction parallel to the axis of the main body 44b (hereinafter referred to as an open state).

  As shown in FIG. 1, the tubular member 44 is configured such that the lower end portion of the tubular member 48 is connected in series in the axial direction to the upper end portion thereof, and the length in the axial direction can be extended. The tubular member 48 is formed in a circular tube shape having a shaft hole 48a, and a lower end portion of the tubular member 49 formed in a circular tube shape having a shaft hole 49a is provided in the axial direction at the upper end portion of the tubular member 48. It can be connected in series.

  Then, the outer peripheral portion of any one of the three tubular members 44, 48, 49 connected in series with each other is sandwiched and supported, and the supported tubular member can be driven in the vertical direction in the figure. A driving mechanism unit 14 is provided in the vehicle 15.

  With this placing mechanism section 14, the drain material embedding device 40 embeds the tubular members 44, 48, 49 in the ground below the embedding ground 7, or embeds the tubular members 44, 48, 49 embedded in the ground. It can be pulled out above the ground 7.

  As shown in FIG. 1, in the drain material embedding device 40, rope-like wires 58 twisted together with metals such as iron are wound in multiple directions in the radial direction of the wire supply reel 60. The leading end side in the length direction can be pulled out from the right side in the figure.

  The wire 58 drawn from the wire supply reel 60 is wound around the wire roller 62 at an angle of about 90 ° at a position in the middle of the length direction, and the length portion of the wire 58 thereafter is It is suspended in a substantially vertical direction (vertical direction) with respect to the buried ground 7.

  As shown in FIG. 7, the lower end portion (tip portion) of the wire 58 is connected to the upper end portion of the main body portion 50a of the rod-like member 50, and the rod-like member 50 pulls the wire 58 in the length direction by its gravity. In this state, it is suspended from the lower end portion of the wire 58 and can be moved together with the wire 58 in the vertical direction in the figure.

  As shown in FIG. 4A, the rod-like member 50 has a main body portion 50a formed in a solid round rod shape having a length in the vertical direction in the drawing. As shown in FIG. 4C, the rod-shaped member 50 is integrally provided with a semicircular semicircular disc portion 51 at the lower end portion of the main body 50a.

  As shown in FIGS. 4 (a) and 4 (b), the rod-shaped member 50 has a protrusion 52 that protrudes from the lower end side of the main body 50a to the outer side of the outer peripheral portion so as to have a sharp cross section at the lower right in the drawing. Is provided. As shown in FIG. 4C, the protrusion 52 extends in a direction substantially perpendicular to the rectangular surface of the semicircular plate portion 51 of the rod-like member 50.

  FIG. 4C is a view of the state in which the semi-disc portion 51 of the rod-like member 50 is placed on the upper surface 41 c of the disc portion 41 a of the anchor 41 as viewed from above. As shown in the figure, the arc portion of the semi-disc portion 51 of the rod-like member 50 is formed in a shape substantially the same as the shape of the left end portion of the disc portion 41 a of the anchor 41 in the drawing.

  Further, the arc portion of the semicircular disc portion 51 of the rod-like member 50 is formed shorter than the left semicircular portion of the disc portion 41 a of the anchor 41. For this reason, the lower surface of the semicircular plate portion 51 of the rod-shaped member 50 can come into contact with the left portion of the upper surface 41 c of the anchor 41 in the drawing.

  Further, as shown in FIG. 1, ropes 64 (suspending members) each having a moderate thickness by twisting fibers or the like are wound in multiple directions in the radial direction of the rope supply reel 66, and this rope From the supply reel 66, it is possible to draw out the length portion on the tip side toward the left in the figure.

  The rope 64 drawn out from the rope supply reel 66 is wound around the rope roller 68 at an angle of approximately 90 ° in the middle of its length direction, and the length portion of the rope 64 thereafter is The suspension is suspended in a substantially vertical direction (vertical direction) with respect to the buried ground 7.

  Two hook members each having hook portions 70a and 72a each having a rod-like end at one end and bent in an arc shape at the lower end of the length portion suspended from the rope roller 68 of the rope 64 The end portions on the rod-like side of 70 and 72 are connected.

  Each of the hook portions 70a, 72a of the two hook members 70, 72 has a hook portion 74a, 76a having one end side which is a rod-like portion and the other end side bent in an arc shape. The rod-shaped portions of two hook members with springs 74 and 76 (hanging portions) having springs 74b and 76b extending and contracting in the length direction of the rod-shaped portion between the hook portion and the hook portion are formed at the tip portions thereof. For example, the ring-shaped portions are locked and connected.

  The hook parts 74a, 76a of the hook members 74, 76 with springs are alternately hooked on the upper end part of the drain material 42 that remains long below when the drain material 42 is cut in the middle of its length direction. The length part below the upper end part of the drain material 42 can be suspended alternately.

  The drain material embedding device 40 according to the embodiment of the present invention includes a detection sensor (not shown), and includes a depth detection sensor for the anchor 41, a depth detection sensor for the tubular member 44, and a rod-shaped member. The depth positions of the anchor 41, the tubular member 44, and the rod-like member 50 can be detected by the 50 depth detection sensors.

  Further, the drain material embedding device 40 according to the embodiment of the present invention includes a storage means (not shown), and changes in the depth positions of the anchor 41, the tubular member 44, and the rod-like member 50, and their trajectories. It can be memorized.

  Next, a drain material embedding method using the drain material embedding device 40 according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 5, the drain material embedding method using the drain material embedding device 40 is roughly divided into a tubular member embedding step (S1), a drain material inserting step (S2), and a drain material fixing step (S3). And the tubular member drawing step (S4).

  First, in the tubular member embedding step (S1), as shown in FIG. 6, the two lid portions 46 at the lower end of the tubular member 44 are closed. The tubular members 44, 48, and 49 are continuously embedded until the driving mechanism portion 14 is operated and the lower end portion of the tubular member 44 reaches a predetermined depth position. At this time, the tubular member 44 is configured such that a plurality of tubular members 48 and 49 are sequentially added in series in the axial direction to extend the length of embedding of the tubular member.

  Thus, before starting the operation of embedding the tubular members 48 and 49 into the ground by the placement mechanism 14 following the tubular member 44, the tubular members 48 and 49 are vertically placed on the buried ground 7 near the placement mechanism 14. It is placed in a standing state.

  In order to perform the tubular member embedding step (S1), first, the placing mechanism portion 14 is operated to drive the lower end portion of the tubular member 44 below the embedding ground 7 and embed it. After the tubular member 44 is buried below the buried ground 7 to some extent, the tubular member 48 placed on the buried ground 7 is picked up by a crane or the like, moved horizontally, and then lowered above the tubular member 44. Thus, the upper end portion of the tubular member 44 and the lower end portion of the tubular member 48 are connected in series in the axial direction to each other by a connecting structure (not shown) and connecting means.

  And after operating the placing mechanism part 14 and embedding the tubular members 44 and 48 connected to each other to some extent, the tubular member 49 placed on the embedding ground 7 is picked up by a crane or the like, Further, after the horizontal movement, the tube member 48 is then lowered above the tubular member 48, and the upper end portion of the tubular member 48 and the lower end portion of the tubular member 49 are connected in series in the axial direction of each other by a connection structure and connection means (not shown). Link.

  In this way, a plurality of tubular members 48 and 49 are successively added in series in the axial direction above the tubular member 44 to extend the length thereof, and these tubular members are embedded in the ground by the placement mechanism portion 14. Go.

  When the depth detection sensor of the tubular member 44 detects that the lower end portion of the tubular member 44 has reached a predetermined depth position below the buried ground 7, the tubular members 44 and 48 are driven by the placing mechanism portion 14. , 49 are terminated.

  At this time, as shown in FIG. 6, the tubular members 44, 48, 49 are constituted by shaft holes 44 a, 48 a, 49 a of the tubular members 44, 48, 49 and inner side surfaces 46 a of the two lid portions 46. Thus, an internal space 78 is formed.

  Next, proceeding to the drain material insertion step (S2), as shown in FIG. 7, the tip of the protrusion 52 of the rod-like member 50 is pierced into the lower end of the drain material 42, as shown in FIG. The semicircular disk portion 51 of the rod-shaped member 50 is disposed so that the outer peripheral surface of the arc portion is continuous with the outer peripheral surface of the disk portion 41a of the anchor 41, and the lower surface of the semicircular disk portion 51 is disposed on the anchor 41. It is made to contact on the upper surface 41c of the disc part 41a.

  While maintaining this state, a length portion continuous to the lower end portions of the rod-shaped member 50, the anchor 41 and the drain material 42 is inserted into the inner space 78 from the upper end side of the shaft hole 49a of the tubular member 49.

  Then, while rotating the wire supply reel 60 and the wire roller 62, the rod-shaped member 50 is lowered together with the wire 58 in the internal space 78 by the gravity thereof, thereby continuing to the lower end portions of the anchor 41 and the drain material 42. The portion is lowered together with the rod-shaped member 50 in the internal space 78.

  When the depth detection sensor of the anchor 41 detects that the anchor 41 has been lowered to a predetermined depth position above a predetermined depth position below the buried ground 7, the anchor 41 is lowered by the rod-shaped member 50. That's it.

  And as shown in FIG. 9, the middle of the length direction of the drain material 42 by which the lower end part was inserted in the interior space 78 with the anchor 41 is cut | disconnected. At this time, the hook portion 74a of the spring-equipped hook member 74 is hooked (locked) to the upper end portion of the lower drain member 42 cut at this time, and the state in which the drain member 42 is suspended from the hook portion 74a is maintained.

  After the hook member 74 with the spring can be inserted into the shaft hole 49 a of the tubular member 49, the wire supply reel 60 and the wire roller 62 are rotated again to lower the rod-shaped member 50. Then, as shown in FIG. 7, the rod-shaped member 50, the anchor 41, and the length portion that continues to the lower end portion of the drain material 42, the two cover portions that the anchor 41 constitutes the lower end surface of the internal space 78. It is lowered until it contacts on the inner surface 46a of 46.

  At this time, in conjunction with the rotation of the wire roller 62, the rope supply reel 66 and the rope roller 68 are rotated to lower the hook portion 74a of the spring-equipped hook member 74. The magnitude of the tension applied in the length direction is prevented from changing greatly.

  Next, the process proceeds to the drain material fixing step (S3), and the driving mechanism 14 is operated to pull up the three mutually connected tubular members 44, 48, 49, as shown in FIG. The lower end portion of the main body portion 44b of the tubular member 44 is pulled up to the upper height position in the drawing so as not to go too far above the upper end portion of the main body portion 50a of the rod-like member 50.

  At this time, the tubular member 44 is in an open state in which each of the two lid portions 46 is rotated by their own weight or the like. Further, the anchor 41 placed on the inner side surface 46a of the two lid portions 46 is restrained from the upper side by its own weight and the weight of the rod-like member 50, so that it has a predetermined depth below the buried ground 7. It is designed to maintain the position.

  In addition, after the lower end of the main body 44b of the tubular member 44 is raised, there are no members covering the lower end of the anchor 41 and the drain member 42 and the lower end of the rod-like member 50, so The earth and sand are covered.

  Then, as shown in FIG. 11, the rod 58 is pulled upward in the figure by pulling the wire 58 upward in the figure. At this time, the tip end portion of the protrusion 52 of the rod-shaped member 50 is pulled out by the lower end portion of the drain member 42, and the lower surface of the semicircular disk portion 51 of the rod-shaped member 50 is separated from the upper surface 41 c of the disk portion 41 a of the anchor 41. It is supposed to be.

  Then, when it is confirmed by the depth detection sensor of the anchor 41 that the anchor 41 does not rise together with the rod-like member 50 and is fixed at a predetermined depth position, the rod-like member 50 is pulled upward from the buried ground 7 and shown in FIG. As shown, the rod-shaped member 50 is removed from the internal space 78 in the tubular members 44, 48, 49.

  Next, the process proceeds to the tubular member drawing step (S4), and the length portions continuous to the lower end portions of the tubular members 44, 48, 49, the anchor 41, and the drain material 42 are formed from the embedded ground 7 as shown in FIG. The tubular members 44, 48, 49 connected to each other are raised to some extent from the state where they are buried below, and the connection between the tubular member 49 arranged at the top of the tubular members 49 and the tubular member 48 therebelow is released. The member 49 is removed.

  Then, the tubular members 44 and 48 are raised to some extent, and the connection between the upper tubular member 48 and the lower tubular member 44 is released, and the tubular member 48 is removed. Finally, only the tubular member 44 is raised and pulled upward from the buried ground 7 and taken out.

  Specifically, at the beginning of the tubular member drawing step (S4), the driving mechanism 14 is operated to raise the tubular members 44, 48, 49 to some extent, and then the tubular members 44, 48, 49 connected to each other. The connection between the lower end portion of the uppermost tubular member 49 and the upper end portion of the tubular member 48 disposed below the uppermost tubular member 49 is released.

  At this time, as shown in FIG. 13, the upper end portion of the drain member 42 that is hooked and suspended by the hook portion 74 a of the hook member 74 with spring passing through the shaft hole 49 a of the uppermost tubular member 49. The hook portion 74a is removed from the upper end, and instead, the upper end portion of the drain member 42 is hooked and hung on the hook portion 76a of the hook member 76 with spring passing through the outer peripheral surface of the uppermost tubular member 49.

  The upper end portion of the drain member 42 is suspended by the spring-attached hook member 76 by changing the hook portion 74a of the hook member 74 with spring and the hook portion 76a of the hook member 76 with spring to the upper end portion of the drain member 42. The spring-attached hook member 74 that has passed through the shaft hole 49 a of the uppermost tubular member 49 can be extracted from the shaft hole 49 a of the tubular member 49 while maintaining the above state. For this reason, the uppermost tubular member 49 can be removed without contacting the drain material 42 at all. The removed tubular member 49 is placed on the embedded ground 7 in a vertically placed state.

  After the tubular members 44 and 48 connected to each other by operating the driving mechanism portion 14 are further raised to some extent, the lower end portion of the tubular member 48 and the upper end portion of the lower tubular member 44 are connected. Is released.

  Also at this time, the engagement of the drain member 42 that is hung and suspended by the spring-loaded hook member 76 that passes through the shaft hole 48a of the tubular member 48 is removed from the upper end portion, and the outer periphery of the tubular member 48 is replaced instead. When the upper end portion of the drain member 42 is hooked on the hook member 74 with spring passing through the outside of the surface and suspended, the tubular member 48 is removed and placed on the embedded ground 7 in a vertically placed state.

  In this way, the spring-loaded hook members 74 and 76 are alternately replaced with the upper end portion of the drain member 42, and the operation of removing the uppermost tubular member at that time among the tubular members 44, 48, and 49 connected to each other is sequentially performed. Finally, the lowermost tubular member 44 is raised above the buried ground 7.

  When the lowermost tubular member 44 is raised above the buried ground 7, the soil around the tubular member 44 collapses and continues to the anchor 41 and the lower end portions of the drain material 42 as shown in FIG. 14. Therefore, only the length portion that is continuous with the anchor 41 and the lower end portion of the drain material 42 is buried in the ground below the buried ground 7.

  Finally, by removing the spring-attached hook member 74 or 76 hooked on the upper end protruding upward from the buried ground 7 of the drain material 42, the lower end of the drain material 42 is lower than the buried ground 7. It embeds with the length part which continues upwards so that it may come to a predetermined depth position, and it will be in the state which the upper end part protruded upwards from the embedding ground 7, and remained.

  In this way, in the tubular member drawing step (S4), the connection of the plurality of tubular members 44, 48, 49 is not performed in a state where the drain material 42 is inserted as in the conventional drain material embedding device 20. It is possible to reliably prevent the drain material 42 from coming into contact with the tubular members 44, 48, 49 and being damaged.

  Also in the drain material insertion step (S2), since the plurality of tubular members 44, 48, 49 are not connected in a state where the drain material 42 is inserted as in the conventional drain material embedding device 20, the drain material 42 is not connected. It is possible to reliably prevent the material 42 from coming into contact with the tubular members 44, 48, 49 and being damaged.

  Further, in all steps from the tubular member embedding step (S1) to the tubular member pulling step (S4), the drain material 42 is wound around the drain material roller 28 of the casing 26 like the conventional drain material embedding device 20. Since it is not necessary to repeat the removal or removal, it is possible to reliably prevent the drain material 42 from being damaged in this respect as well.

  Further, in the drain material embedding device 40 of the present invention, a plurality of tubular members 44, 48, 49 can be connected to extend the entire length thereof, so that the dredge like the conventional drain material embedding device 2 can be used. Since the structure 3 is unnecessary and the height dimension can be prevented from becoming large, the drain material embedding device 40 can be prevented from being enlarged.

  As described above, since the drain material embedding device 40 of the present invention can prevent the height dimension from becoming large, even in an embedding site where there is a restriction such as interference in the height direction. The drain material 42 can be embedded.

  Further, in the drain material embedding device 40 according to the present invention, the connection work and the connection release work of the plurality of tubular members 44, 48, 49 and the insertion work of the drain material 42 can be performed separately. Since it is not necessary to work carefully so as not to damage, the work efficiency can be prevented from being significantly reduced.

  Therefore, according to the drain material embedding device 40 and the embedding method using the drain material embedding device 40 according to the embodiment of the present invention, an increase in the size of the drain material embedding device 40 can be prevented. The drain material 42 can be embedded even in a burial site where there is a restriction on the drainage, the drain material 42 can be prevented from being damaged during the burying work, and the efficiency of the burying work can be prevented from being significantly reduced. be able to.

  In the drain material embedding device 40 according to the embodiment of the present invention, the plurality of tubular members 44, 48, 49 are formed in a circular shape, but these tubular members 44, 48, 49 are It is not necessarily limited to a circular tube, and may be formed in a rectangular tube shape, for example. Further, the two lid portions 46 of the tubular member 44 may be changed in shape in accordance with the change in the shape of the tubular members 44, 48, and 49.

  Further, in the drain material embedding device 40 of the present invention, the one having the three tubular members 44, 48, and 49 has been described, but it may have two or four or more tubular members. .

  Further, in the drain material embedding device 40 of the present invention, the drain member embedding device 40 has two lid portions that can be opened and closed at the lower end portion of the tubular member 44. However, the drain member embedding device 40 has one or three or more lid portions. Also good.

  Further, in the drain material embedding device 40 of the present invention, the hook members with springs 74 and 76 are connected to the hook portions 70a and 72a of the two hook members 70 and 72 connected to the lower end portion of the rope 64, respectively. When the drain material 42 is cut halfway along its length, the upper end portions of the drain material 42 that remain long below are alternately hooked on the hook portions 74a and 76a of the hook members 74 and 76 with springs. However, the present invention is not limited to this configuration.

  For example, the hook member 70 and the hook member 74 with a spring, and the hook member 72 and the hook member 76 with a spring may each be provided integrally. That is, any other configuration may be employed as long as the length portions below the upper end portion of the drain material 42 can be suspended alternately.

  In the drain material embedding device 40 and the embedding method using the drain material embedding device according to the present invention, the plurality of tubular members 44, 48, and 49 are inserted and removed from a casing (not shown) obliquely above the driving mechanism 14. However, the present invention is not limited to this configuration, and any other method can be used as long as the plurality of tubular members 44, 48, and 49 can be connected and disconnected. It may be a simple configuration.

DESCRIPTION OF SYMBOLS 2 Drain material embedding device 3 Dredge structure 4 Drain material 6 Anchor 7 Embedding ground 8 Tubular member 8a Shaft hole 10 Drain material supply reel 12 Conveying roller 14 Placing mechanism 15 Vehicle 20 Drain material embedding device 22 Drain material 24A 24B, 24C Tubular member 24a Shaft hole 26 Casing 28 Drain material roller 40 Drain material embedding device 41 Anchor 41a Disc portion 41b Connection portion 41c Upper surface 41d Opening portion 42 Drain material 44 Tubular member 44a Shaft hole 44b Main body portion 45 Hinge Part 46 Lid part 46a Inner side surface 48, 49 Tubular member 48a, 49a Shaft hole 50 Rod-like member 50a Body part 51 Semi-disc part 52 Projection 54 Drain material supply reel 56 Conveying roller 58 Wire 60 Wire supply reel 62 Wire roller 64 Rope 66 rope Feed reel 68 Rope roller 70, 72 Hook member 70a, 72a Hook portion 74, 76 Spring-attached hook member 74a, 76a Hook portion 74b, 76b Spring 78 Internal space

Claims (3)

A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
A placement mechanism that can embed the tubular member in the ground or pull the tubular member buried in the ground from the ground; and
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. A drain material embedding device characterized in that it can be used.   The drain material embedding apparatus according to claim 1, further comprising a plurality of suspension members that are alternately engaged with the upper end portion of the drain material and alternately suspend the lower drain material from the upper end portion. . A tubular member having a shaft hole through which a drain material can be inserted, and extending the entire length by connecting ends in the axial direction of each other, and having a lid that can be opened and closed at the lower end;
An anchor that is formed in an outer shape that can be inserted into the shaft hole of the tubular member and that is connected to the length portion on the lower end side of the drain material;
A rod-like member having a locking portion for locking the anchor at its lower end,
Using a draining material embedding device comprising a placement mechanism that can embed the tubular member in the ground or pull the tubular member embedded in the ground from the ground,
The anchor and the drain material in a state in which the anchoring portion of the rod-shaped member is engaged with the anchor in a space formed therein by embedding it in the ground with the lid portion of the tubular member closed. The length part of the lower end side of is inserted,
By pulling out the tubular member and the rod-shaped member from the ground with the lid portion of the tubular member being opened, the length portions on the lower end side of the anchor and the drain material are left buried in the ground. A drain material embedding method characterized in that

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