JP2012032159A - Oblique angle measuring device and oblique angle measuring method for batter pile, and penetration method for pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oblique angle measuring device and an oblique angle measuring method for a batter pile that easily manage an oblique angle of the batter pile, and a penetration method for a pile in which the batter pile is made to penetrate while the oblique angle is easily managed.SOLUTION: An oblique angle measuring device that measures the oblique angle of the pile when the pile is made to penetrate obliquely to a ground surface includes: a telescope; a support member supporting the telescope; a base on which the support member is mounted; reference adjusting means for setting a reference line or reference mark viewed through a viewfinder of the telescope to a perpendicular direction; and measuring means for measuring an angle that an external line of the pile and the perpendicular direction contain. An oblique angle measuring method and a penetration method for the pile use the oblique angle measuring device.

Description

  The present invention mainly includes a pile angle measuring device, a pile angle measuring method using the device, and an oblique angle measuring method used when the pile is penetrated in a posture inclined with respect to the ground as a civil engineering or building foundation member. The present invention relates to a method of penetrating a pile using a measurement method.

  When a pile penetrates the ground as a foundation member for civil engineering and construction, a pile that penetrates vertically is called a straight pile, and a pile that penetrates in a posture inclined with respect to the ground is called a diagonal pile. The slant pile functions more effectively against the force applied in the horizontal direction than the straight pile, and it is possible to reduce the horizontal displacement of the pile head. Therefore, in the future, slant piles tend to be suitably used for seismic design.

  For example, Patent Literature 1 discloses a rotational burying method of a spiral bladed pile, such as a tilting process in which the bladed pile is inclined to a desired burying angle, and a bladed pile. And a burying step of burying the bladed pile in the ground while confirming the direction of burying. Moreover, in patent document 1, as a specific method for confirming the burying direction of the bladed pile, there is a method of performing on the basis of a rod-like member installed in parallel to the desired burying direction on the ground around the bladed pile. It is disclosed.

JP 2010-37839 A

  When penetrating a slant pile into the ground, it is important to manage the slant angle of the slant pile. However, the method disclosed in Patent Document 1 has a problem that it takes time to install the rod-shaped member in parallel with the predetermined penetration direction. Moreover, since the surrounding ground is displaced by penetrating the oblique pile, it is necessary to install the bar-like member at a position considerably away from the penetration position of the oblique pile. In this case, it is very difficult to manage the penetration direction of the diagonal pile while looking at the bar-like member at a distant position. Furthermore, in order to install the rod-shaped member in a self-supporting manner, it is necessary to penetrate deeply into the ground. In this case, manual installation is difficult and requires heavy machinery and the like, which makes the construction complicated.

  As another method for managing the inclination angle of the inclined pile when penetrating the inclined pile into the ground, a method of checking the inclination angle of the inclined pile by applying an inclinometer to the outer peripheral surface of the inclined pile can be considered. However, in such a method, it was necessary to interrupt the penetration work of the slant pile when measuring, and workability was bad. Further, a method is conceivable in which a guide pipe is installed along the inner peripheral surface of the inclined pile, and an inclinometer is inserted into the guide pipe for measurement. However, in such a method, like the above method, the penetration work of the slant pile must be interrupted at the time of measurement, and the workability is poor, and the connection work of the guide pipe is accompanied when the pile is added. Therefore, there is a problem that the construction becomes complicated.

  Therefore, the present invention provides an inclination measuring device, an inclination measuring method, and an inclination angle that can easily manage the inclination angle of the oblique pile (such as the penetration angle of the pile and the angle when the pile is longitudinally connected). It is an object to provide a method of penetrating a pile that can penetrate a slant pile while managing it.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  The first aspect of the present invention is an oblique angle measuring device that measures an inclination angle of a pile (20) when penetrating in a posture inclined with respect to the ground (30), the telescope (1), A support member (2) for supporting the telescope, a base (3) for mounting the support member, a reference adjusting means for vertically aligning a reference line or a reference mark visible from the finder of the telescope, and an outer line of the pile The oblique angle measuring device (10, 10 ') characterized in that it has a measuring means for measuring an angle formed by (21) and the vertical direction.

  In the present invention, the “tilt angle of the pile” means an angle formed by the outer line of the pile and the vertical direction. The “outside line of the pile” means a boundary line between the pile and the periphery when the pile is viewed from the front.

  In the oblique angle measuring device (10) of the first aspect of the present invention, the measuring means inclines the base (3) at an arbitrary angle in the range of 0 degrees to 15 degrees with respect to the horizontal plane, It is preferable to include a tilting means that can match the outer line (21) of the pile.

  In the oblique angle measuring device (10) of the first aspect of the present invention, the angle adjustment for adjusting the inclination direction and the inclination angle of the base with respect to the horizontal plane, the reference adjusting means and the inclination means being provided at the lower part of the base (3). It is preferable that they are screws (4a, 4b, 4c). The angle adjusting screw typically has a leveling screw provided in a conventional transit having a large movable range, and has a function of a tilting means as well as a function of a reference adjusting means. The angle adjusting screw (leveling screw) is typically provided at the position of each apex of the triangle in plan view. By using this, the base is leveled and a predetermined tilt direction and tilt angle are set. Make adjustments.

  In the oblique angle measuring apparatus (10) of the first aspect of the present invention, a plurality of reference adjustment means and / or inclination means are provided, and the angle formed between the base and the horizontal plane adjusted by each reference adjustment means and / or each inclination means is It may be possible to superimpose. For example, the function as the reference adjusting means and the function as the tilting means are not combined into one angle adjusting screw (leveling screw), but the function as the leveling screw and the tilting means having the function as the reference adjusting means. An angle adjusting screw having With such a structure, compared to the case where one angle adjusting screw has both a function as a reference adjusting means and a function as an inclination means, the number of parts increases and the apparatus configuration becomes complicated. Each leveling screw or angle adjusting screw may be a screw having a small movable range, and as a result, a highly accurate screw can be used.

  In the oblique angle measuring apparatus (10 ′) of the first aspect of the present invention, when the measuring means is viewed from the finder of the telescope with the base (3) horizontal, it appears to be inclined at a predetermined angle with respect to the vertical direction. Preferably, a reference line or reference mark is included.

  Here, the “reference line or reference mark that appears inclined at a predetermined angle with respect to the vertical direction” may be a reference line or reference mark with a fixed inclination angle with respect to the vertical direction, as will be described in detail later. A reference line or a reference mark that can appropriately change the inclination angle with respect to the vertical direction may be used.

  The second aspect of the present invention is an oblique angle measuring method for measuring an inclination angle of a pile (20) when penetrating in a posture inclined with respect to the ground, the telescope (1) and the telescope being A supporting member (2) for supporting, a base (3) for placing the supporting member, a reference adjusting means for vertically aligning a reference line or a reference mark visible from the finder of the telescope, and an outer line (21) of the pile And a measuring means for measuring an angle formed by the vertical direction and an inclination measuring device (10, 10 ') having an inclination angle measuring method characterized by measuring an inclination angle of a pile. To solve.

  In the bevel angle measuring method of the second aspect of the present invention, the bevel angle measuring device (10) is arranged so that the vertical plane including the axis of the pile (20) and the optical axis of the telescope (1) are orthogonal to each other, and the reference adjustment is performed. After aligning the reference line or reference mark visible from the finder of the telescope in the vertical direction by means, tilt the base (3), align the reference line or reference mark and the outer line (21) of the pile, and the inclination angle of the pile Is preferably measured. In the case of this method, the tilt of the entire pile is measured by rotating the telescope and aligning the outer line (21) of the inclined pile (20) with the reference line or reference mark visible from the finder of the telescope. It is preferable.

  In the bevel angle measuring method of the second aspect of the present invention, the bevel angle measuring device (10 ′) is arranged so that the vertical plane including the axis of the pile (20) and the optical axis of the telescope (1) are orthogonal to each other, and the reference After adjusting the reference line or reference mark visible from the finder of the telescope in the vertical direction by the adjusting means, align the other reference line or reference mark inclined at a predetermined angle with respect to the vertical direction and the outer line (21) of the pile. It is also preferable to measure the inclination angle of the pile.

  Here, “another reference line or reference mark inclined at a predetermined angle” may be a reference line or reference mark with a fixed inclination angle, separately from the vertical reference line or reference mark. It may be a reference line or a reference mark that can be changed as appropriate.

  3rd this invention is a penetration method of a pile which penetrates the pile of the attitude | position inclined with respect to the ground at a predetermined angle, Comprising: A telescope, the support member which supports this telescope, and mounting this support member An oblique angle measuring device comprising: a base that is tilted; a reference adjusting means that vertically aligns a reference line or a reference mark that can be seen from a finder of the telescope; and a tilting means that tilts the base at an arbitrary angle with respect to a horizontal plane. After using the angle measuring device so that the vertical plane including the axis of the pile is perpendicular to the optical axis of the telescope, and aligning the reference line or reference mark visible from the finder of the telescope with the reference adjustment means in the vertical direction The pile is penetrated into the ground by tilting the base by a predetermined angle in a direction parallel to the vertical plane including the axis of the pile, and aligning the outer line of the pile with the reference line or reference mark by the tilting means. By the penetration method of Resolve.

  Here, “tilting the base by a predetermined angle” means tilting the base with respect to the horizontal direction by the same angle as the inclination angle planned for the penetrating pile.

  A fourth aspect of the present invention is a pile penetration method for penetrating a pile in a posture inclined at a predetermined angle with respect to the ground, the telescope, a support member for supporting the telescope, and the support member mounted thereon And a reference adjustment means for aligning the reference line or reference mark visible from the telescope viewfinder in the vertical direction, and when tilted at a predetermined angle with respect to the vertical direction when viewed from the telescope viewfinder with the base horizontal. The angle measuring device is arranged so that the vertical plane including the axis of the pile and the optical axis of the telescope are orthogonal to each other, and the telescope is adjusted by the reference adjusting means. After aligning the reference line or reference mark visible from the finder in the vertical direction, the pile penetrates the ground while aligning the outer line of the pile with the reference line or reference mark that appears to tilt at a predetermined angle, The problem Resolve.

  Here, “Align the outer line of the pile to the reference line or reference mark that appears inclined at a predetermined angle” means that the reference line is inclined with respect to the vertical direction by the same angle as the inclination angle planned for the penetrating pile. Or it means to match the outside line of the pile with the reference mark.

  According to the first aspect of the present invention, it is possible to provide a bevel angle measuring apparatus that can easily and accurately manage a tilt angle of a slant pile. In addition, according to the second aspect of the present invention, it is possible to provide an oblique angle measuring method capable of managing the inclination angle of the oblique pile easily and accurately. Furthermore, according to the 3rd and 4th this invention, the penetration method of the pile which can penetrate a diagonal pile can be provided, managing an inclination angle easily and correctly.

BRIEF DESCRIPTION OF THE DRAWINGS (a) is a front view which shows roughly the bevel angle measuring apparatus of this invention concerning 1st Embodiment. (B) is a side view schematically showing the oblique angle measuring apparatus shown in (a). It is a figure which shows schematically the II-II arrow cross section shown in FIG. It is a figure explaining the bevel angle measuring method of the present invention concerning one embodiment. It is a front view which shows roughly the bevel angle measuring apparatus of the attitude | position which inclined the base. It is a front view which shows roughly the bevel angle measuring apparatus of this invention concerning a modification. (A) is a front view which shows roughly the bevel angle measuring apparatus of this invention concerning 2nd Embodiment. (B) is a figure which shows roughly the reference line seen from the finder of the telescope with which the oblique angle measuring apparatus shown to (a) is equipped. It is a figure explaining the bevel angle measuring method of the present invention concerning other embodiments.

  The above-described operation and gain of the present invention will be clarified from embodiments for carrying out the invention described below. Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to these embodiments.

  The bevel angle measuring device of the present invention is a device that measures the tilt angle of a pile when the pile is penetrated in a posture inclined with respect to the ground. The oblique angle measuring apparatus according to the present invention includes a telescope, a support member that supports the telescope, a base on which the support member is placed, and a reference adjustment unit that aligns a reference line or a reference mark visible from the finder of the telescope in the vertical direction. And measuring means for measuring the angle formed by the outer line of the pile and the vertical direction. Such a bevel angle measuring device of the present invention can be used when adjusting the inclination angle of a pile that penetrates or adjusting the inclination angle of a pile that is longitudinally connected.

1. First Embodiment FIG. 1 is a diagram schematically showing an oblique angle measuring apparatus 10 of the present invention according to a first embodiment. FIG. 1A is a front view of the oblique angle measuring apparatus 10, and FIG. 1B is a side view of the oblique angle measuring apparatus 10 viewed from the direction of the arrow x shown in FIG. . FIG. 2 is a diagram schematically showing a cross section taken along the line II-II shown in FIG. Hereinafter, the bevel angle measuring apparatus 10 will be described with reference to FIGS.

  As shown in FIG. 1, the oblique angle measuring apparatus 10 includes a telescope 1, a support member 2 that supports the telescope 1, a base 3 on which the support member 2 is placed, angle adjustment screws 4a, 4b, and 4c, A tripod 6 for mounting these on the head 5 is provided. The angle adjusting screws 4a, 4b and 4c have a function as a reference adjusting means for aligning a reference line or a reference mark seen from the finder of the telescope 1 in the vertical direction and a function as an inclination means capable of inclining the base 3. Have both. In the present embodiment, the three angle adjusting screws 4a, 4b, and 4c are provided at the positions of the respective apexes of the triangle in plan view, as shown in FIG. Note that the measuring means for measuring the angle formed by the outer line of the pile and the vertical direction provided in the bevel angle measuring device 10 is based on the angle adjustment screws 4a, 4b, 4c and the horizontal plane of the base 3 as will be described later. An angle meter (not shown) that can measure the tilt angle is used. Examples of the angle meter include a commercially available small digital angle meter.

  As the telescope 1, the thing similar to what is provided in the conventional transit can be used. That is, when the base 3 is horizontal, the horizontal and vertical reference lines or reference marks can be seen from the finder of the telescope 1. As the support member 2, the same member as that provided in the conventional transit can be used. That is, the telescope 1 is supported by the support member 2 so as to be rotatable in the direction of the arrow y shown in FIG. The base 3 and the tripod 6 can be the same as those provided in the conventional transit.

  The angle adjusting screws 4a, 4b, and 4c are provided at the lower part of the base 3, and can be tilted with respect to the leveling of the base 3 and a horizontal plane. Specifically, each of the angle adjustment screws 4a, 4b, and 4c has a function of adjusting the height of the base 3, and by rotating any of the angle adjustment screws 4a, 4b, and 4c or a combination thereof, The leveling of the base 3 and the tilt angle and tilt direction with respect to the horizontal plane can be adjusted.

  The reference adjustment range by the leveling screw provided in the conventional transit is usually about 5 degrees. On the other hand, the angle adjusting screws 4a, 4b, and 4c provided in the oblique angle measuring device 10 have a wider movable range than the conventional leveling screw, and any angle within a range of 0 degree to 15 degrees with respect to the horizontal plane. The base 3 can be inclined. Although the said angle range is not specifically limited, If an upper limit is less than 5 degree | times, the inclination | tilt angle of a diagonal pile when actually penetrating a diagonal pile may be unable to be measured. On the other hand, since it is difficult to assume that the pile has an inclination angle of 15 degrees or more, the upper limit of the angle range is considered to be about 15 degrees. The angle adjusting screws 4a, 4b and 4c are also used for leveling the base 3 as described above. In order to level the base 3, it is usually preferable that the base 3 is tilted within a range of about 5 degrees. Therefore, it is preferable that the angle adjustment range of the base 3 by the angle adjustment screws 4a, 4b, 4c is about 20 degrees in total.

  In addition, in the case of the bevel angle measuring device 10, it is important to know the angle of the base 3 with respect to the horizontal plane in order to measure the tilt angle of the pile, as will be described later. Therefore, the oblique angle measuring apparatus 10 includes an angle meter that measures an angle formed between the base 3 and the horizontal plane. The angle meter is not particularly limited as long as the angle formed by the base 3 and the horizontal plane can be measured. For example, by installing a commercially available small digital angle meter on the base 3, the angle formed between the base 3 and the horizontal plane can be measured.

  Next, while describing the bevel angle measuring method of the present invention using the bevel angle measuring apparatus 10, the measurement means provided in the bevel angle measuring apparatus 10 will be specifically described.

  FIG. 3 is a diagram for explaining the bevel angle measuring method of the present invention using the bevel angle measuring apparatus 10. FIG. 3A is a top view schematically showing a positional relationship between the oblique angle measuring device 10 and the oblique pile 20 when the inclination angle of the oblique pile 20 is measured by the oblique angle measuring device 10. FIG. 3B is a front view schematically showing the oblique angle measuring device 10 and the oblique pile 20 when the inclination angle of the oblique pile 20 is measured by the oblique angle measuring device 10. In addition, in FIG.3 (b), the diagonal pile 20 is shown with the broken line. FIG. 4 is a front view schematically showing the oblique angle measuring apparatus 10 in a posture in which the base 3 is inclined.

  In order to measure the inclination angle of the pile 20 using the oblique angle measuring device 10, first, as shown in FIG. 3A, a vertical plane (indicated by a straight line v) including the axis of the pile 20 is shown. The bevel angle measuring device 10 is arranged so that the vertical plane “v”) and the optical axis of the telescope 1 (the one-dot chain line a) are orthogonal to each other. After that, as with the conventional transit, the angle adjustment screws 4a, 4b and 4c are adjusted so that the reference line or reference mark seen from the finder of the telescope 1 is aligned with the vertical direction, and the reference for measuring the inclination angle of the pile 20 is set. To clarify. Thereby, since the base 3 becomes a substantially horizontal surface, the angle meter installed in the base 3 is reset.

  Next, the base 3 is tilted in a direction parallel to the vertical plane v, and the reference line or reference mark seen from the viewfinder of the telescope 1 is aligned with the outer line 21 of the pile 20 to measure the inclination angle of the pile 20. To do. At this time, as shown in FIG. 4, the base 3 is inclined with respect to the horizontal plane by the angle adjusting screws 4a, 4b, and 4c. When using the same telescope 1 as that provided in the conventional transit, when the base 3 is leveled, the reference line or reference mark written in the vertical direction can be seen from the finder of the telescope 1. it can. By tilting the base 3 so that the reference line or reference mark is inclined in a direction parallel to the inclination direction of the pile 20, the reference line or reference mark and the outer line 21 of the pile 20 can be aligned. At this time, the angle θ formed by the base 3 and the horizontal plane becomes equal to the inclination angle of the pile 20. Therefore, the inclination angle of the pile 20 can be measured by reading the angle of the base 3 with respect to the horizontal plane from an angle meter installed on the base 3. Thus, in this embodiment, the angle adjusting screws 4a, 4b, and 4c and the angle meter that measures the angle formed by the base 3 and the horizontal plane constitute the measuring means.

  Further, when the inclination angle of the pile 20 is measured using the oblique angle measuring device 10 as described above, the telescope 1 is rotated so that the reference line visible from the outer line 21 of the inclined pile 20 and the finder of the telescope 1 is visible. Or the inclination of the whole pile 20 can be measured by confirming a position with a reference mark.

  Thus, according to the bevel angle measuring apparatus 10, the bevel angle of the pile 20 can be measured easily and accurately. Therefore, according to the oblique angle measuring device 10, it is easy to penetrate while accurately managing the inclination angle of the pile 20. That is, after the bevel angle measuring device 10 is arranged as described above and the reference line or reference mark visible from the viewfinder of the telescope 1 is aligned with the angle adjusting screws 4a, 4b, 4c in the vertical direction, the angle adjusting screws 4a, 4b, 4c, the base 3 is inclined at a predetermined angle in a direction parallel to the vertical plane v including the axis of the pile 20, and the pile 20 is grounded while aligning the outer line 21 of the pile 20 with the reference line or reference mark. It becomes easy to penetrate the pile 20 at the planned inclination angle. Further, the oblique angle measuring apparatus 10 can be used as described below. When the inclination angle of the pile 20 that is inserted in a posture inclined at a predetermined angle with respect to the ground deviates from the angle that should originally be inclined (scheduled inclination angle), first, as described above, the base 3 And the reference line or reference mark is inclined at an angle that the pile 20 should originally be inclined. And by adjusting the inclination angle of the pile 20 so as to match the outer line 21 of the pile 20 with the reference line or reference mark, the inclination angle of the pile 20 can be corrected and penetrated. .

  In the description of the present invention so far, the form in which the base 3 is tilted by the three angle adjusting screws 4a, 4b, and 4c has been described. However, the present invention is not limited to this form, and the base 3 is placed on a horizontal plane. On the other hand, if the angle is inclined to an arbitrary angle, the number of the angle adjusting screws and the installation position can be appropriately changed.

  For example, FIG. 5 shows a front view of an oblique angle measuring apparatus 50 according to the present invention according to a modification. In FIG. 5, the same components as those in FIG. The bevel angle measuring device 50 includes angle adjustment screws 54a, 54b, 54c, 55a, 55b, and 55c in two upper and lower stages (the angle adjustment screws 54c and 55c are not shown. In each of the upper and lower stages, the bevel angle measurement is performed. (Assume that the angle adjusting screw is provided at each vertex of the triangle like the angle adjusting screws 4a, 4b, and 4c of the device 10). By adopting such a structure, for example, the lower angle adjusting screws 55a, 55b and 55c are provided with a function as a reference adjusting means (the same function as a leveling screw provided in a conventional transit), and the upper The angle adjusting screws 54a, 54b, 54c can be provided with a function as a tilting means (a function capable of adjusting the tilt angle of the base 3 in a range larger than the leveling screw provided in the conventional transit). With such a structure, although the number of parts increases and the device configuration becomes complicated, the movable range of each screw can be reduced, so that a highly accurate screw can be used.

2. Second Embodiment Next, a bevel angle measuring apparatus according to a second embodiment of the present invention will be described. FIG. 6A is a front view schematically showing an oblique angle measuring apparatus 10 ′ according to the second embodiment of the present invention. In FIG. 6 (a), the same components as those shown in FIG. 1 (a) are denoted by the same reference numerals. FIG. 6B is a diagram schematically showing reference lines 40 to 47 viewed from the viewfinder of the telescope 1 ′ provided in the oblique angle measuring apparatus 10 ′.

  The oblique angle measuring apparatus 10 ′ shown in FIG. 6A includes a telescope 1 ′ and leveling screws 14a, 14b, and 14c having functions as reference adjusting means (leveling screws 14c are not shown. Leveling screws 14a). , 14b, and 14c are provided at the same positions as the angle adjusting screws 4a, 4b, and 4c of the bevel angle measuring apparatus 10). Further, the leveling screws 14a, 14b, and 14c may be the same as those provided in the conventional transit. Therefore, in the following description of the oblique angle measuring apparatus 10 ', the telescope 1' will be mainly described.

  The telescope 1 ′ has a plurality of reference lines 40 to 47 that appear as shown in FIG. 6B from the viewfinder when the base 3 is leveled. Of these, the horizontal reference line 40 and the vertical reference line 41 are usually provided in a conventional transit. The telescope 1 'is further provided with reference lines 42 to 47 inclined at a predetermined angle. For example, the reference lines 42 and 43 are lines inclined by 15 degrees with respect to the vertical direction, the reference lines 44 and 45 are lines inclined by 10 degrees with respect to the vertical direction, and the reference lines 46 and 47 are inclined with respect to the vertical direction. The line can be inclined 5 degrees. However, the inclination angle and the number of such inclined reference lines are not particularly limited, and a necessary number can be provided with a necessary inclination angle as appropriate. Moreover, although the reference lines 42 to 47 whose angles are fixed are illustrated in FIG. 6B, the present invention is not limited to this form, and even if a reference line that can be tilted at an arbitrary angle is provided. Good.

  As a method of providing the inclined reference lines as described above, the reference lines 42 to 47 which are inclined are written in the window in which the horizontal and vertical reference lines 40 and 41 are drawn, or the horizontal and vertical reference lines are written. A method is conceivable in which a window (filter) capable of adjusting the tilt angle is provided separately from the window in which the lines 40 and 41 are drawn, and reference lines 42 to 47 whose tilt angles can be appropriately changed are drawn on the window.

  Next, while describing the bevel angle measuring method of the present invention using the bevel angle measuring apparatus 10 ', the measurement means provided in the bevel angle measuring apparatus 10' will be described in detail.

  FIG. 7 is a front view schematically showing the oblique angle measuring device 10 ′ and the oblique pile 20 when the inclination angle of the inclined pile 20 is measured by the oblique angle measuring device 10 ′. In FIG. 7, the diagonal pile 20 is indicated by a broken line.

  In order to measure the inclination angle of the pile 20 using the oblique angle measuring device 10 ′, first, as in the oblique angle measuring device 10, the oblique angle measurement is performed so that the vertical plane v and the optical axis of the telescope 1 ′ are orthogonal to each other. The device 10 ′ is arranged (see FIG. 3A). Thereafter, the reference line 41 seen from the viewfinder of the telescope 1 ′ is aligned with the leveling screws 14 a, 14 b and 14 c in the vertical direction, and the reference for measuring the inclination angle of the pile 20 is clarified.

  Next, the inclination angle of the pile 20 is measured by aligning any one of the reference lines 42 to 47 visible from the finder of the telescope 1 ′ with the outer line 21 of the pile 20. That is, the inclination angle of the pile 20 can be measured depending on which reference line and the outer line 21 of the pile 20 are combined.

  As described above, the reference line visible from the finder of the telescope 1 'may be tilted at an arbitrary angle. In this case, the inclination angle of the pile 20 can be measured depending on how many times the reference line is inclined and the outer line 21 of the pile 20 and the reference line are combined.

  Further, as described in the first embodiment, there is also provided a mechanism capable of tilting the base 3 and measuring the tilt angle, and the mechanism and the reference lines 42 to 47 tilted at a predetermined angle may be used in combination. Good. Thereby, the angles of the reference lines 42 to 47 can be continuously changed, and the angle is adjusted by the tilting means of the base 3 (the aforementioned angle adjusting screws 4a, 4b, and 4c are exemplified). Smaller range is better.

  As described above, in the oblique angle measuring apparatus 10 ′, the reference line or reference mark that can be tilted at a predetermined angle, or the reference line or reference mark that is inclined at a predetermined angle, and the reference line or reference mark and the vertical line. The means for knowing the angle formed with the direction constitutes the measuring means.

  Thus, according to the bevel angle measuring apparatus 10 ′, the bevel angle of the pile 20 can be measured easily and accurately. Therefore, according to the oblique angle measuring apparatus 10 ′, it is easy to penetrate while accurately managing the inclination angle of the pile 20. That is, as described above, the bevel angle measuring device 10 ′ is arranged, and the reference line 41 seen from the viewfinder of the telescope 1 ′ is aligned with the angle adjustment screws 14a, 14b, 14c in the vertical direction, and then tilted at a predetermined angle. By inserting the pile 20 into the ground while aligning the outer line 21 of the pile 20 with the reference line (any one of the reference lines 42 to 47), it becomes easy to penetrate the pile 20 at the planned inclination angle. . Further, the oblique angle measuring apparatus 10 'can be used as described below. When the inclination angle of the pile 20 that is inserted in a posture inclined at a predetermined angle with respect to the ground is deviated from the angle that should originally be inclined (scheduled inclination angle), it is the same as the angle that the pile 20 should originally be inclined. The pile 20 on the reference line (any one of the reference lines 42 to 47) inclined at an angle of the angle or the reference line (any one of the reference lines 42 to 47) inclined at the same angle as the angle of the pile 20 that should originally be inclined. By inserting the pile 20 while adjusting the inclination angle of the pile 20 so as to match the outer line 21, the inclination angle of the pile 20 can be corrected and penetrated.

  Although the invention has been described with reference to embodiments that are presently practical and preferred, the invention is not limited to the embodiments disclosed herein, but is claimed. The bevel angle measuring device, the bevel angle measuring method, and the pile penetrating method can be changed as appropriate without departing from the scope or spirit of the invention that can be read from the scope of the present invention and the entire specification. Should be understood as being included in the scope.

1, 1 'telescope 2 support member 3 base 4a, 4b, 4c angle adjustment screw (leveling screw)
5 Head 6 Tripod 10, 10 'Oblique angle measuring device 20 Pile 21 Outer line 30 Ground 40, 41, 42, 43, 44, 45, 46, 47 Reference line

Claims (12)

An oblique angle measuring device for measuring an inclination angle of the pile when penetrating the pile in an inclined posture with respect to the ground,
A telescope, a support member for supporting the telescope, a base on which the support member is placed, a reference adjustment means for vertically aligning a reference line or a reference mark visible from the finder of the telescope, and an outer line of the pile An oblique angle measuring apparatus comprising: a measuring unit that measures an angle formed by a vertical direction.   The measuring means includes an inclination means capable of inclining the base at an arbitrary angle in a range of 0 degrees or more and 15 degrees or less with respect to a horizontal plane and aligning the reference line or the reference mark with the outer line of the pile. The bevel angle measuring device according to claim 1.   The bevel angle measuring device according to claim 2, wherein the reference adjusting means and the tilting means are angle adjusting screws provided at a lower part of the base for adjusting the tilt direction and the tilt angle with respect to the horizontal plane of the base. Three angle adjusting screws are provided,
The bevel angle measuring device according to claim 3, wherein the three angle adjusting screws are provided at positions of respective vertices of the triangle in a plan view.   A plurality of the reference adjusting means and / or the tilting means are provided, and an angle formed by the base and the horizontal plane adjusted by each of the reference adjusting means and / or each of the tilting means can be superimposed. The bevel angle measuring device according to any one of the above.   The measurement means includes a reference line or a reference mark that appears to tilt at a predetermined angle with respect to a vertical direction when the base is viewed from the viewfinder of the telescope with the base level. The bevel angle measuring device described in 1. An oblique angle measuring method for measuring an inclination angle of the pile when penetrating the pile in an inclined posture with respect to the ground,
A telescope, a support member for supporting the telescope, a base on which the support member is placed, a reference adjustment means for vertically aligning a reference line or a reference mark visible from the finder of the telescope, and an outer line of the pile An oblique angle measuring method, wherein an inclination angle of the pile is measured by using an oblique angle measuring device having a measuring means for measuring an angle formed by a vertical direction. Arranging the oblique angle measuring device so that the vertical plane including the axis of the pile and the optical axis of the telescope are orthogonal,
After aligning the reference line or reference mark visible from the finder of the telescope with the reference adjusting means in the vertical direction,
The base is tilted in a direction parallel to a vertical plane including the axis of the pile, and the inclination angle of the pile is measured by combining the reference line or reference mark and the outer line of the pile. Item 8. The oblique angle measuring method according to Item 7.   The oblique angle measurement according to claim 8, wherein the tilt of the entire pile is measured by rotating the telescope and aligning the inclined outer line of the pile with a reference line or a reference mark visible from the finder of the telescope. Method. Arranging the oblique angle measuring device so that the vertical plane including the axis of the pile and the optical axis of the telescope are orthogonal,
After aligning the reference line or reference mark visible from the finder of the telescope with the reference adjusting means in the vertical direction,
The bevel angle measuring method according to claim 7, wherein an inclination angle of the pile is measured by combining another reference line or reference mark inclined at a predetermined angle with respect to a vertical direction and an outer line of the pile. A method of penetrating a pile that penetrates a pile in a posture inclined with respect to the ground at a predetermined angle,
A telescope, a support member for supporting the telescope, a base on which the support member is placed, a reference adjusting means for vertically aligning a reference line or a reference mark seen from the finder of the telescope, and the base on a horizontal plane An inclination measuring device having an inclination means inclined at an arbitrary angle with respect to the
Arranging the oblique angle measuring device so that the vertical plane including the axis of the pile and the optical axis of the telescope are orthogonal,
After aligning the reference line or reference mark visible from the finder of the telescope with the reference adjusting means in the vertical direction,
The tilting means tilts the base at a predetermined angle in a direction parallel to a vertical plane including the axis of the pile, and aligns the outer line of the pile with the reference line or reference mark while grounding the pile. The method of penetrating the piles. A method of penetrating a pile that penetrates a pile in a posture inclined with respect to the ground at a predetermined angle,
A telescope, a support member for supporting the telescope, a base on which the support member is placed, a reference adjustment means for vertically aligning a reference line or a reference mark visible from the finder of the telescope, and the base is leveled Using an oblique angle measuring device having a reference line or a reference mark that is inclined at a predetermined angle with respect to the vertical direction when viewed from the viewfinder of the telescope,
Arranging the oblique angle measuring device so that the vertical plane including the axis of the pile and the optical axis of the telescope are orthogonal,
After aligning the reference line or reference mark visible from the finder of the telescope with the reference adjusting means in the vertical direction,
A method of penetrating a pile, wherein the pile is inserted into the ground while aligning an outer line of the pile with a reference line or a reference mark that appears to tilt at the predetermined angle.

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