JP2019183589A - Drilling system - Google Patents

Abstract

To provide a drilling system that can be used in ground improvement methods.SOLUTION: A drilling system 1 includes a drilling device 10 that inserts a rod 2 into the ground G, a storage device 20 that stores the plurality of rods 2, and a moving mechanism that moves the rod 2 between the devices 10 and 20. The drilling device 10 has drilling gripping means 13 for the rod 2. The storage device 20 has an endless rail 21 and rod holding means 22. The moving mechanism comprises a turning mechanism 30 and a slide mechanism 50. The rotation mechanism 30 has a rod-shaped member 31 that rotates along the ground G and storage gripping means 40 that is provided on the tip side, and is configured to move the rod 2 between the storage device 20 and a desired position P1. The slide mechanism 50 is configured to move the rod 2 between a desired position P1 and the drilling device 10 by sliding the drilling gripping means 13 along the ground G.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drilling system that can be used for ground improvement and the like.

  In drilling the ground in the ground improvement method or the like, for example, a drilling device provided with a rod, a head for gripping the rod, or the like is used. This drilling device advances the drilling by inserting the rod into the ground while rotating or striking the rod. The rod may consist of a single tube, but when the drilling depth becomes deep, etc., a plurality of rods (unit pipes) are sequentially added (connected) in the process of drilling. Make a rod. When adding a plurality of rods (unit pipes), it is necessary to prepare a plurality of rods (unit pipes) in the vicinity of the drilling device. Therefore, in order to accommodate a plurality of rods and to be able to add them immediately, for example, the use of a system disclosed in Patent Document 1 can be considered. In the system, a storage device that stores a plurality of rods is provided adjacent to the drilling device.

  However, this system is a system used for forming a well (geothermal well) in geothermal development or the like. Therefore, it cannot be used as it is in the ground improvement method. For example, in a ground improvement method or the like, for example, since a hardener such as cement is allowed to flow inside the rod, the inside of the rod is contaminated with the hardener. Therefore, the rod cannot be stored as it is, and it is necessary to clean the inside of the rod.

National Opening No. 2007/129337

  A main problem to be solved by the present invention is to provide a drilling system that can be used in a ground improvement method or the like.

Means for solving the above problems are as follows.
(Means according to claim 1)
A drilling device for inserting the rod into the ground, a storage device for storing a plurality of rods, and a moving mechanism for moving the rod between the drilling device and the storage device;
The hole drilling device has a hole gripping means for gripping a rod,
The storage device has an infinite rail along the ground, and a rod holding means that moves along the infinite rail while holding the rod,
The moving mechanism is composed of a rotation mechanism and a slide mechanism,
The rotation mechanism has a rod-shaped member that rotates along the ground with a base end side as a rotation axis, and a storage gripping means provided on a distal end side of the rod-shaped member, and the storage gripping means allows the rod to be stored in the storage device. And a configuration that moves between a desired position and
The slide mechanism is configured to move the rod between the desired position and the drilling device by sliding the drilling gripping means along the ground.
Drilling system characterized by that.

(Means according to claim 2)
A housing member for housing the lower end of the rod is provided at the desired position,
The rod is cleaned at the desired position, and the sewage used for the cleaning is configured to flow into the housing member.
The drilling system according to claim 1.

(Means according to claim 3)
The storage gripping means has a pair of clamping members that clamp the rod,
The pair of clamping members are configured to clamp the rod by sliding toward at least one of the clamping members, and center on the opening / closing shaft portion on the side where the rotation shaft is located. Each is configured to rotate,
The drilling system according to claim 1 or 2.

  According to this invention, it becomes a drilling system which can be utilized in a ground improvement construction method or the like.

It is a front view (side where a storage device is located) of the hole drilling system. It is one (right side) side view of a drilling system. It is a back surface (side in which a drilling machine main body is located) figure of a drilling system. It is the other (left side) side view of a drilling system. It is a top view of a drilling system. It is a perspective view which shows the state before moving a storage holding means toward a rod. It is a perspective view which shows the state after moving a storage holding means toward a rod. It is a perspective view which shows the state after guiding an inner tube | pipe and an outer tube | pipe by an inner guide means and an outer guide member. It is a perspective view which shows the state which hold | gripped the inner tube | pipe and the outer tube | pipe. It is a front view which shows the state which hold | gripped the rod by the storage holding means in the storage position. It is a front view which shows the state which lifted the rod upwards by the storage holding means in the storage position. It is a front view which shows the state which moved the rod from the storage position to the washing | cleaning position by the storage holding means. It is a front view which shows the state which accommodated the rod in the accommodation member by the accommodation holding means in the washing | cleaning position. It is a top view of a storage device. It is a perspective view of a grasping means in storage. It is the perspective view which expanded the inner guide member part of the holding means in storage. It is the perspective view which expanded the inner clamping member part of the holding | grip means in accommodation. It is a perspective view which shows the whole rotation mechanism. It is a perspective view which shows the whole slide mechanism and rotation mechanism. It is a perspective view of a storage outside grip means. It is a perspective view of an outside guidance member. It is a front view of an inner holding means. It is a top view of an inner clamping member. It is a top view of an inner guide member. (1) is explanatory drawing of an inner clamping member, (2) is explanatory drawing of a moving mechanism.

  Next, the form for implementing this invention is demonstrated. This embodiment is an example of the present invention. The scope of the present invention is not limited to the scope of the present embodiment.

  1 to 5 show a drilling system 1 of this embodiment. The drilling system 1 of this embodiment includes a drilling device 10 that inserts the rod 2 into the ground G, a storage device 20 that stores a plurality of rods 2, and a rod 2 between the drilling device 10 and the storage device 20. And a moving mechanism that moves.

  As shown in (2) of FIG. 25, the moving mechanism moves the rod 2 between the drilling device 10 (drilling position P2 in this embodiment) and a desired position (cleaning position P1 in this embodiment). The slide mechanism 50 includes a rotation mechanism 30 that moves the rod 2 between a desired position (in this embodiment, a cleaning position P1) and the storage device 20 (in this embodiment, the storage position P3).

  1 to 5 (1) show a state after the rod 2 is moved from the cleaning position P1 to the drilling position P2, or a state before the rod 2 is moved from the drilling position P2 to the cleaning position P1. 1 to 5 (2), the rod 2 is moved from the drilling position P2 or the storage position P3 to the cleaning position P1, or moved from the cleaning position P1 to the drilling position P2 or the storage position P3. The previous state is shown.

  In this embodiment, the rod 2 is a double tube composed of an inner tube 2A and an outer tube 2B. However, the idea of the present invention can also be used when the rod 2 is a single tube or a multi-tube more than a triple tube. In this embodiment, the upper end portion of the inner tube 2A extends slightly above the upper end portion of the outer tube 2B.

  The drilling device 10 of this embodiment includes a drilling machine main body 11 that can move on the ground G, a mast 12 that is supported by the drilling machine main body 11 and extends upward, and upward and downward along the mast 12. Mainly from the moving hole-holding means 13. The mast 12 can be tilted in the horizontal direction when moving the drilling machine main body 11. Further, the drilling machine main body 11 is stabilized by an outrigger or the like.

  The drilling hole gripping means 13 includes an inner drilling hole gripping means 13A for gripping (grabbing) the inner tube 2A and an outer drilling gripping means 13B for gripping (grabbing) the outer pipe 2B. The in-hole drilling means 13A and the outside-hole-holding means 13B can be constituted by known members such as a drill head, a spindle, a water swivel, and a holder, for example.

  The inner tube 2A and the outer tube 2B are rotated around the axial center, moved back and forth (moved up and down), or struck as necessary, and inserted into the ground G by the inner drilling means 13A and the outer drilling means 13B. Or pulled out from the ground G. In the ground improvement method or the like, a hardener such as cement is poured into the inner tube 2A and the outer tube 2B after being inserted into the ground G, and the inside of the inner tube 2A and the outer tube 2B is soiled by the hardener. .

  As is clear from comparison between (1) and (2) in FIG. 2 or (1) and (2) in FIG. 4, the drilling hole gripping means 13 is slid laterally along the ground G by the slide mechanism 50. Is configured to move. As the hole-holding means 13 slides, the rod 2 slides laterally.

  Here, the “lateral direction” is a direction connecting the drilling position P2 and the cleaning position P1 (see FIG. 5). Therefore, in FIG. 1 and FIG. 3, the direction penetrating the paper surface corresponds to the horizontal direction in FIG. 2 and FIG. 4, and the vertical direction in FIG.

  On the other hand, as shown in FIGS. 6 to 13, the rotation mechanism 30 that constitutes the movement mechanism together with the slide mechanism 50 rotates along the ground G with the base end side (base end portion in this embodiment) as the rotation shaft 32. It is comprised by the rod-shaped member 31 which moves, and the accommodation holding means 40 with which the front end side (this embodiment front-end | tip part) of this rod-shaped member 31 is equipped. As the turning mechanism 30 rotates, the rod 2 gripped by the storage gripping means 40 moves between the storage position P3 and the cleaning position P1.

  In this embodiment, the rotation of the rotation mechanism 30 (bar-shaped member 31) is performed by expansion and contraction of a rotation cylinder 51 provided on the side of the bar-shaped member 31, as shown in FIG. The rotation angle of the rod-shaped member 31 by the rotation mechanism 30 is, for example, 0 to 120 °. Details of the storage gripping means 40 will be described later.

  As shown in FIG. 14, the storage device 20 includes an endless rail (rail) 21 along the ground G, and a plurality of rod holding means 22 that hold the stored rods 2. As shown in FIGS. 10 to 13, each rod holding means 22 is provided in a plurality of upper and lower stages (locations), in this embodiment, in two upper and lower stages. Both the upper and lower rod holding means 22 have a semicircular arc shape in plan view.

  Each lower rod holding means 22 is located in the vicinity of the bottom plate 25 and supports the lower end of each rod 2. On the other hand, each rod holding means 22 in the upper stage is located near the upper end of the fence 24 and supports the central portion of each rod 2. Each of the rods 2 is held vertically by the support by the upper and lower stages.

  Each rod holding means 22 is configured to move (revolve) along the endless rail 21 by the chain 23. Along with this movement, each rod 2 also rotates (revolves). In this embodiment, a fence 24 is provided around the endless rail 21 in order to prevent an accident or the like when the rod 2 moves. In the present embodiment, since the rod 2 rotates on the bottom plate 25 in the horizontal direction along the bottom plate 25, the storage device 20 of the present embodiment can also be referred to as a “carsail type loader”.

  As described above, the rod 2 moves in the storage device 20, and in principle, the rod 2 existing at any position can be collected, and can be stored at any position. However, normally, the position in which the stored rod 2 is collected by the storage gripping means 40 or the rod 2 is held (stored) by the storage gripping means 40 by the storage gripping means 40 is one point. This point (position) is referred to as a storage position P3. In the illustrated example, the point closest to the cleaning position P1 of the endless rail 21 is the storage position P3.

Next, details of the storage gripping means 40 will be described.
As shown in FIGS. 6 to 9, the storage gripping means 40 of the present embodiment includes a storage internal gripping means 41 that grips (grabs) the upper end portion of the inner tube 2 </ b> A, and an outer tube 2 </ b> B below the storage internal gripping means 41. And a non-storage grip means 42 for gripping (grabbing) the upper end portion.

  The storage inner gripping means 41 includes a pair of inner clamping members 41A for clamping the upper end portion of the inner tube 2A, and a pair of inner guiding members for guiding the inner tube 2A in the horizontal direction (a direction perpendicular to the axis of the inner tube 2A). 41B. In the present embodiment, the pair of inner guide members 41B is located above the pair of inner clamping members 41A.

  The outer storage gripping means 42 has a pair of outer clamping members 42A that sandwich the upper end of the outer tube 2B below the inner storage gripping means 41, and the outer tube 2B in a horizontal direction (a direction perpendicular to the axis of the outer tube 2B). And a pair of outer guide members 42B for guiding to the outside. In the present embodiment, the pair of outer guide members 42B are positioned below the pair of outer clamping members 42A.

  In addition to the above, the storage gripping means 40 of the present embodiment includes a first cleaning means 43A for cleaning the inside (inner peripheral surface, etc.) of the inner tube 2A, the outside (outer peripheral surface, etc.) of the inner tube 2A, and the outer tube 2B. And a second cleaning means 43B for cleaning the inside (inner peripheral surface and the like) of the interior. In the present embodiment, the first cleaning means 43A is attached to one of the inner guide members 41B as shown in FIGS. Moreover, the 2nd washing | cleaning means 43B is attached to the lower surface of 41 A of inner clamping members, as shown in FIG.

  As shown in FIGS. 15 and 18, a cylinder 41 </ b> C is provided on the base end side (base end portion in the present embodiment) of the pair of inner clamping members 41 </ b> A. The cylinder 41C extends toward the inner tube 2A and expands and contracts in the extending direction. By this expansion and contraction, the pair of inner clamping members 41A and the pair of inner guiding members 41B attached to the upper side of the pair of inner clamping members 41A move toward the inner tube 2A or away from the inner tube 2A.

  Further, in addition to the above, the pair of inner clamping members 41A has at least one inner clamping member 41A (in the present embodiment, both inner clamping members 41A) face (on the side) toward (the other) inner clamping member 41A. ) It is configured to slide. Therefore, as apparent from the comparison between FIG. 6 and FIG. 7, the pair of inner clamping members 41A are moved toward the inner tube 2A by extending the cylinder 41C, and the pair of inner clamping members 41A are opposed to each other at the position. The inner tube 2A is sandwiched by the inner clamping member 41A by sliding the inner clamping member 41A toward the inner clamping member 41A. This state is a state in which the inner tube 2A is gripped by the storage gripping means 40.

  In detail, as shown in FIG. 23, the pair of inner clamping members 41A are slid and moved toward the opposing inner clamping member 41A by the cylinder accommodated in the clamping cylinder holder 41H. However, in this specification, for example, as shown in FIG. 22 and the like, there is a case where the pair of inner clamping members 41A and the clamping cylinder holder 41H are separately labeled, but for example, as shown in FIG. The pair of inner clamping members 41A and the clamping cylinder holder 41H may be simply denoted by reference numeral 41A without particularly distinguishing them.

  Further, particularly in the present embodiment, as shown in FIG. 23, a pair of inner clamping members 41A are base end portions, that is, end portions on the side where the rotation shaft 32 of the rod-shaped member 31 is located (hereinafter, these end portions are opened and closed). It is also configured to rotate around a shaft portion 41E. According to this rotation, as shown in FIG. 25 (1), the length 30L from the base end portion to the tip end portion of the entire rotation mechanism 30 changes. That is, when the pair of inner clamping members 41A is in an open state, the length 30L is shortened. Therefore, for example, when the entire rotation mechanism 30 is rotated in order to move the rod 2 from the cleaning position P1 to the storage position P3 or from the storage position P3 to the cleaning position P1, the tip of the rotation mechanism 30 is moved. It is possible to prevent the in-storage gripping means 41 located at the end from hitting the inner tube 2A or the like. On the other hand, when the pair of inner clamping members 41A is in a closed state, the length 30L becomes longer (returns to the original). Therefore, the inner tube 2 </ b> A can be reliably gripped by the stored gripping means 41.

  As is clear from the figure, when the rotation mechanism 30 is rotated, the cylinder 41C described above is contracted to move the pair of inner clamping members 41A away from the inner tube 2A. This movement and the opening of the pair of inner clamping members 41A can avoid contact of the pair of inner clamping members 41A with the inner tube 2A.

  As shown in FIG. 24, the pair of inner guide members 41B are generally semicircular. However, the distal end portion is substantially linear, while the proximal end portion is linked (connected). The linked portion is hereinafter referred to as “link” and is denoted by reference numeral 41D.

  The pair of inner guide members 41B opens and closes using the link 41D as an opening and closing shaft. This opening and closing is performed according to the expansion and contraction of the induction cylinder 41F. Specifically, when the guide cylinder 41F extends, the pair of inner guide members 41B closes, and when the guide cylinder 41F contracts, the pair of inner guide members 41B opens.

  Here, the function of the inner guide member 41B will be described. First, the pair of inner guide members 41B are closed before the inner tube 2A is clamped by the pair of inner clamping members 41A. When the pair of inner guide members 41B are closed, one or both of the inner guide members 41B come into contact with the inner tube 2A, and the axis of the inner tube 2A coincides with the desired position, in this embodiment, the axis of the outer tube 2B. Guided to position. This guidance can be said to guide the inner tube 2A in a direction perpendicular to the axis of the inner tube 2A, that is, in the horizontal direction.

  Note that the portion of the inner guide member 41B that abuts against the inner tube 2A is usually the tip portion of the inner guide member 41B, that is, a linear portion. Since this linear portion abuts against the inner tube 2A, there is no possibility that the inner tube 2A is sandwiched by the inner guide member 41B.

  When guidance by the inner guiding member 41B is made, the inner tube 2A is clamped by the pair of inner clamping members 41A. According to this configuration, the inner tube 2A is not likely to be sandwiched by the pair of inner sandwiching members 41A at a position where the axis of the inner tube 2A is displaced from the axis of the outer tube 2B. In this regard, for example, the gripping of the inner tube 2A and the outer tube 2B by the drilling hole gripping means 13 is usually by screwing or the like. Therefore, if the inner tube 2A is pinched at a position where the axis of the inner tube 2A is displaced from the axis of the outer tube 2B, for example, the inner tube 2A or the outer tube 2B is gripped by the drilling gripping means 13. May be difficult.

  The pair of inner guide members 41B can have the same shape or different shapes as in this embodiment. In this embodiment, as shown in FIG. 22, the tip of one inner guide member 41B is divided into two in the vertical direction, the tip of one inner guide member 41B and the tip of the other inner guide member 41B. It is comprised so that a part may become a step difference regarding an up-down direction. When these inner guiding members 41B are closed, as shown in FIG. 8, the distal end portion of the inner guiding member 41B has one distal end portion between the distal end portions of the inner guiding member 41B having two distal end portions. Is configured to fit. By adopting this configuration, no matter how the axis of the inner tube 2A is displaced, it can be reliably guided to a desired position.

  As shown in FIG. 20, a slide member 42C is provided on the base end side (base end portion in this embodiment) of the pair of outer clamping members 42A. As shown in FIG. 6 and the like, the slide member 42C slides along a slide rail 42D extending toward the inner tube 2A. By this sliding movement, the pair of outer clamping members 42A and the pair of outer guiding members 42B attached to the lower side of the pair of outer clamping members 42A are directed toward the inner tube 2A or away from the inner tube 2A. Moving.

  The pair of outer clamping members 42A slide so that at least one outer clamping member 42A (in the present embodiment, both outer clamping members 42A) face (toward) the opposite (other) outer clamping member 42A. It is configured. Therefore, as apparent from the comparison between FIG. 6 and FIG. 7, the pair of outer clamping members 42A are slid toward the inner tube 2A, and the pair of outer clamping members 42A are opposed to each other at the position. The outer tube 2B is sandwiched between the outer clamping members 42A by sliding toward the outer side. This state is a state in which the outer tube 2B is gripped by the storage gripping means 40.

  The pair of outer clamping members 42A is slid and moved toward the opposing outer clamping member 42A by a cylinder accommodated in the clamping cylinder holder 42H (see FIG. 20). Specifically, the pair of outer clamping members 42A are housed in the outer clamping member case 42J, and the outer clamping member case 42J does not slide and is distinguished from each other. However, for example, as shown in FIG. 6 and the like, there is a case where the pair of outer clamping member 42A and the outer clamping member case 42J are simply denoted by reference numeral 42A without particularly distinguishing them.

  As described above, the outer guide member 42B is a member that guides the outer tube 2B in the horizontal direction. Therefore, it can be said that it plays the same role as the inner guiding member 41B for the inner tube 2A. However, the outer guiding member 42B of this embodiment is different from the inner guiding member 41B, and at least one outer guiding member 42B (both outer guiding members 42B in this embodiment) is opposed to the other guiding member 42B side. It is configured to slide (toward).

  Specifically, first, the outer guide member 42B is formed of a triangular member in plan view as shown in FIG. Further, the outer guide member 42B is configured such that its bottom side (long side) 42x slides along the guide rail 42G. On the other hand, on the base end side of the outer guide member 42B (base end side of the rotation mechanism 30), a triangular outer guide member auxiliary member 42E is provided in plan view. The outer guide member auxiliary material 42E is disposed such that the bottom side (long side) is in contact with the short side of the outer guide member 42B (the short side opposite to the short side on the opposite side of the external guide member 42B). Further, an auxiliary cylinder 42F is attached to the base end side of the outer guide member auxiliary member 42E. The auxiliary cylinder 42F extends toward the outer guide member 42B and expands and contracts in the extending direction.

  In the above configuration, when the auxiliary cylinder 42F is extended (extended) before the outer tube 2B is clamped by the pair of outer clamping members 42A, the outer guiding member auxiliary material 42E faces the outer guiding member 42B. Move. By this movement, the outer guide member 42B slides toward the outer tube 2B along the guide rail 42G. When this movement is performed, one or both of the outer guide members 42B (short sides on the opposite outer guide member 42B side) abut against the outer tube 2B, and the axis of the outer tube 2B is guided to a desired position. This guidance eliminates the possibility that the outer tube 2B is pinched by the pair of outer clamping members 42A at an unintended position. As a result, for example, there is no possibility that it is difficult to grip the outer tube 2B by the hole drilling gripping means 13.

  As shown in FIG. 15, the first cleaning means 43A is attached to one of the inner guide members 41B. Further, as shown in FIG. 16, this attachment is performed so that the first cleaning means 43A is positioned on the axis of the inner tube 2A when the pair of inner guide members 41B are closed. With this configuration, the cleaning liquid W such as water is jetted along the axis of the inner tube 2A, and the inner tube 2A is reliably cleaned by the first cleaning means 43A. In addition, since a separate structure or the like for positioning (moving) the first cleaning means 43A on the axis of the inner tube 2A is not required, the structure of the apparatus can be simplified. In the present embodiment, a cleaning case 43C is provided on each inner guide member 41B in order to prevent the cleaning liquid W from scattering. The cleaning case 43C has a semi-cylindrical shape and the upper surface is closed.

  On the other hand, the 2nd washing | cleaning means 43B is attached to the lower surface of 41 A of inner clamping members, as shown in FIG.17 and FIG.22. As described above, the inner clamping member 41A moves toward the inner tube 2A during clamping, and also moves so as to sandwich the inner tube 2A from both sides. Accordingly, since the second cleaning means 43B is attached to the lower surface of the inner clamping member 41A, the second cleaning means 43B moves to an appropriate place for cleaning during the cleaning, and the inner tube by the second cleaning means 43B. Cleaning of the outside of 2A or the inside of the outer tube 2B is surely performed. Further, since a separate structure or the like for positioning (moving) the second cleaning unit 43B at a desired location is not required, the apparatus structure can be simplified.

  In the present embodiment, two second cleaning means 43B are provided so as to face each other with the inner tube 2A interposed therebetween, from the viewpoint of the reliability of the cleaning and the simplification of the apparatus structure. However, the 2nd washing | cleaning means 43B can also be provided with three or more, if necessary, and only one may be provided depending on the case.

(Rod moving procedure)
Next, a procedure for moving the rod 2 between the drilling device 10 and the storage device 20 and cleaning the rod 2 in the middle thereof will be described.
In this embodiment, as shown in FIG. 10, first, the storage gripping means 40 is rotated to the storage device 20 side to grip the rod 2 at the storage position P3. Next, as shown in FIG. 11, the storage gripping means 40 is moved upward along the mast 12. By this movement, the rod 2 at the storage position P3 is also moved upward. Then, next, as shown in FIG. 12, the storage gripping means 40 is rotated from the storage position P3 to the cleaning position P1. By this rotation, the rod 2 moves from the storage position P3 to the cleaning position P1. At the cleaning position P1, the storage gripping means 40 is moved downward along the mast 12, as shown in FIG. By this movement, the lower end portion of the rod 2 is accommodated in the housing member 43.

  On the other hand, at the same time as or before and after, the hole gripping means 13 is moved from the hole position P2 to the cleaning position P1. The hole gripping means 13 moved to the cleaning position P1 moves downward along the mast 12 and grips the rod 2. This gripping is, for example, by screwing or the like. When the rod 2 is gripped, the gripping of the rod 2 by the storage gripping means 40 is released, and the drilling gripping means 13 is moved upward along the mast 12. By this movement, the rod 2 moves upward. Next, the drilling hole gripping means 13 moved upward is moved from the cleaning position P1 to the drilling position P2. By this movement, the rod 2 moves from the cleaning position P1 to the drilling position P2. Therefore, at the drilling position P2, the drilling gripping means 13 is moved downward along the mast 12, and the rod (inserted into the ground G preceding the rod (unit pipe) 2 that has performed the above movement ( Add unit pipe 2). This addition is, for example, by screwing. When this addition is completed, drilling of the ground G is appropriately advanced.

  On the other hand, when the drilling of the ground G is completed, the rods 2 are collected in order from the rod (unit pipe) 2 at the uppermost end in the reverse procedure. That is, the rod (unit pipe) 2 is moved from the drilling position P2 to the cleaning position P1 and from the cleaning position P1 to the storage position P3 in order from the rod (unit pipe) 2 at the uppermost end.

  However, in the ground improvement method or the like, the inside of the rod 2 used for drilling is contaminated with a hardener such as cement. Therefore, when collecting the rod 2, the rod 2 is washed. Specifically, first, the rod 2 is returned (moved) from the drilling position P2 to the cleaning position P1 by the drilling gripping means 13, and the lower end portion of the rod 2 is stored in the housing member 43 at the cleaning position P1.

  When the lower end portion of the rod 2 is housed in the housing member 43, the rod 2 is gripped by the storage gripping means 40. Further, if necessary, the gripping of the rod 2 by the drilling gripping means 13 is released. By holding the rod 2 by the storage gripping means 40, the first cleaning means 43A comes to face the inside of the inner tube 2A as described above. Moreover, the 2nd washing | cleaning means 43B comes to face the inside of the outer tube | pipe 2B (outside of the inner tube | pipe 2A). Therefore, in this state, the cleaning liquid W such as water is ejected from both the cleaning means 43A and 43B, thereby cleaning the inner tube 2A and the outer tube 2B. As described above, in the hole drilling system 1 of the present embodiment, the cleaning means 43A and 43B are moved to appropriate places as the rod 2 is gripped by the storage gripping means 40. Done very effectively.

  In particular, in this embodiment, the sewage after being used for cleaning flows into the housing member 43. Therefore, even if the rod 2 is cleaned at the position P1, water does not accumulate on the ground G at the cleaning position P1 or in the vicinity thereof, and there is no possibility of becoming mud.

  The water that has flowed (stored) in the housing member 43 can be configured to flow out to an appropriate place through the hose or the like, for example, by connecting a hose or the like to the housing member 43.

  As described above, in this embodiment, when the rod 2 is moved between the drilling position P2 and the storage position P3, the movement by the slide and the movement by the rotation are used in combination. Therefore, as shown in (2) of FIG. 25, the area occupied by the entire drilling system 1 can be reduced. In addition, when the rod 2 is moved, the rod 2 may not interfere with other devices.

  Reference numeral 44 denotes a fence. This fence extends in the vertical direction and is installed so as to surround the moving path of the rod 2 that is moved by the storage gripping means 40. By installing this fence 44, even if the rotating rod 2 is detached from the storage gripping means 40, there is no possibility that the rod 2 will fly outward. Further, there is no possibility that an operator or the like comes into contact with the rod 2 that is rotating. Further, all operations of the above-described drilling system 1 can be performed centrally using the control panel 14.

  The present invention can be used as a drilling system that can be used for ground improvement and the like.

DESCRIPTION OF SYMBOLS 1 Drilling system 2 Rod 2A Inner pipe 2B Outer pipe 10 Drilling apparatus 11 Drilling machine main body 12 Mast,
13 Drilling hole gripping means 13A Drilling hole gripping means 13B Drilling hole gripping means 14 Control panel 20 Storage device 21 Endless rail 22 Rod holding means 23 Chain 24 Fence 25 Bottom plate 30 Turning mechanism 30L Length of turning mechanism 31 Rod-like member 32 Rotating shaft 40 Storage gripping means 41 Storage gripping means 41A Inner clamping member 41B Inner guiding member 41C Cylinder 41D Link 41E Opening and closing shaft part 41F Guide cylinder 41H Holding cylinder holder 42 Storage outer gripping means 42A Outer clamping member 42B Outer guiding member 42C Slide member 42D Slide rail 42E Outer guide member auxiliary material 42F Auxiliary cylinder 42G Guide rail 42H Holding cylinder holder 42J Outer holding member case 42x Bottom 43 Housing member 43A First cleaning means 43B Second cleaning means 43C Cleaning case 44 Fence 5 Slide mechanism 51 rotates the cylinder P1 cleaning position (desired position)
P2 Drilling position P3 Storage position G Ground W Cleaning fluid

Claims (3)

A drilling device for inserting the rod into the ground, a storage device for storing a plurality of rods, and a moving mechanism for moving the rod between the drilling device and the storage device;
The hole drilling device has a hole gripping means for gripping a rod,
The storage device has an infinite rail along the ground, and a rod holding means that moves along the infinite rail while holding the rod,
The moving mechanism is composed of a rotation mechanism and a slide mechanism,
The rotation mechanism has a rod-shaped member that rotates along the ground with a base end side as a rotation axis, and a storage gripping means provided on a distal end side of the rod-shaped member, and the storage gripping means allows the rod to be stored in the storage device. And a configuration that moves between a desired position and
The slide mechanism is configured to move the rod between the desired position and the drilling device by sliding the drilling gripping means along the ground.
Drilling system characterized by that. A housing member for housing the lower end of the rod is provided at the desired position,
The rod is cleaned at the desired position, and the sewage used for the cleaning is configured to flow into the housing member.
The drilling system according to claim 1. The storage gripping means has a pair of clamping members that clamp the rod,
The pair of clamping members are configured to clamp the rod by sliding toward at least one of the clamping members, and center on the opening / closing shaft portion on the side where the rotation shaft is located. Each is configured to rotate,
The drilling system according to claim 1 or 2.