JP3204885U - Tunnel tarpaulin fitting - Google Patents

Abstract

There is provided a tunnel waterproof sheet mounting tool used for attaching a waterproof sheet to an inner surface of a structure inside an excavated tunnel. If the structure is H-shaped steel, a base member 10 fixed to the surface of the H-shaped steel, a sheet pressing member 20 for pressing and fixing a waterproof sheet to the base member 10, and a sheet pressing member 20 The side wall portion 12 that stands up from the left and right sides of the base member 10 fixed to the surface of the H-shaped steel, and is bent toward the inside from the front end portion of the side wall portion 12. The sheet pressing member 20 includes an upper surface portion 21 including a bush nut, an expanded piece portion 22 that is bent inward from the left and right sides of the upper surface portion 21, and the expanded piece. A presser piece 23 that is bent outward from the tip of the portion 22, and a presser end 24 that is formed in an inverted round shape from the tip of the presser piece 23 toward the upper surface. Yes. [Selection] Figure 1

Description

  The present invention relates to a tunnel waterproof sheet fixture, and more particularly to a fixture used for attaching a waterproof sheet to the inner surface of a structure inside a tunnel excavated in the process of constructing a tunnel.

  Conventionally, what was described in patent document 1 is known for a tunnel waterproof sheet fixture. In this document, “in the process of constructing a tunnel, a waterproof sheet that is interposed between a tunnel excavation hole and lining concrete or between primary lining concrete and secondary lining concrete is attached. A base body fixed to an attachment point such as a surface of a steel material or a surface of the primary lining concrete provided in the tunnel excavation hole, and the waterproof sheet as a base body fixed to the base body The base body is formed in a substantially U-shaped cross section with side wall portions standing on the left and right sides of the bottom plate portion fixed to the mounting portion, and the left and right side walls. And a retaining piece is formed by bending the leading end of the portion toward the opposite inner side, and the sheet holding member is provided on the left and right sides of the base body provided with screw holes. A press contact portion having a substantially L-shaped press contact surface that can approach or abut against the bottom plate portion and the side wall portion of the body is projected, and the left and right press contact portions are juxtaposed in a close state and screwed into the screw holes. When the screw rods are inserted, the screw rods push the press contact portions arranged side by side to move the left and right press contact portions so as to extend the parallel arrangement interval. The tunnel waterproof sheet mounting tool is characterized in that the surface is configured to be able to approach or abut against at least each side wall portion of the base body. "

  JP 2006-70656 A

  In the disclosure disclosed in Japanese Patent Laid-Open No. 2006-70656 described above, the effect that the waterproof sheet can be attached without making a hole is claimed, but it is extremely possible to widen the expanding portion by screwing a bolt screw. It was difficult and the workability was poor.

  In addition, when the waterproof sheet is thick, there is a problem that the waterproof sheet is insufficiently mounted, and the waterproof sheet cannot be securely stretched and fixed.

  On the other hand, in the tunnel tarpaulin fixture of the present invention, the expanded portion is not expanded by screwing a bolt screw, but the expanded portion can be easily expanded by driving the press-fit shaft into the bush nut. The present invention provides a tunnel waterproof sheet mounting tool that can be opened and can be easily mounted without making a hole in the waterproof sheet.

  Further, the driven press-fit shaft 7 is firmly fixed by the bush nut 25 without returning to the original, and the waterproof sheet 40 can be securely stretched and fixed inside the tunnel.

The tunnel waterproof sheet fixture of the present invention is configured as follows.
In the process of constructing a tunnel, a mounting member used for attaching a waterproof sheet to the inner surface of a structure inside the excavated tunnel, for example, a base member 10 fixed to the surface of an H-shaped steel, and the waterproof sheet A sheet pressing member 20 that presses and fixes 40 to the base member 10, and an auxiliary member attached to the sheet pressing member 20.
The side wall part 12 which stands up from the right and left both sides of the base member 10 fixed to the surface of the H-shaped steel 5, and the retaining piece part 13 which is bent toward the inside from the front end part of the side wall part 12 are provided. The sheet pressing member 20 includes an upper surface portion provided with a bush nut 25, an expanded piece portion 22 formed to be bent inward from the left and right sides of the upper surface portion, and an outer side from the distal end portion of the expanded piece portion 22. A presser piece portion 23 that is bent toward the upper end portion, and a presser end portion 24 that is formed in an inverted round shape from the distal end portion of the presser piece portion 23 toward the upper surface portion 21 side,
The auxiliary member 30 is formed in a U-shape as viewed from the side, having an opposing spread piece portion 31 and a bottom portion 35 connecting the lower end portions of the spread piece portion 31. The bottom portion 35 is disposed so as to be positioned below the bush nut 25 and can be brought into contact with the spread piece portion 22.
When the press-fit shaft 7 is driven into the bush nut 25, the auxiliary member 30 moves with the intrusion movement of the press-fit shaft 7, and the push-and-spread piece 31 is pressed against the spread piece 22. The tunnel waterproof sheet mounting tool is configured to widen and widen the gap between the expanded piece portions 22.

  In addition, the lower portion of the flared piece portion of the auxiliary member includes a squeezed portion formed so that the width gradually decreases toward the lower end portion, and both sides of the squeezed portion abut against the inner surface of the spread piece portion. It is a tunnel waterproof sheet fixture formed so that contact is possible.

  In the process of building a tunnel, it is a fixture that is used to attach a waterproof sheet to the inner surface of the structure inside the excavated tunnel, and is a base fixed to the surface of a hardened concrete surface, natural ground surface, or H-shaped steel A tunnel waterproof sheet mounting tool including a member and a rotation stopper plate that presses and fixes the waterproof sheet to the base member.

  The press-fit shaft is fixed to the rotation stopper plate by bush nuts or welding. When the rotation stopper plate is rotated, the waterproof sheet is fixed between the holding end of the rotation stopper plate and the side wall of the base member. A tunnel waterproof sheet mounting tool characterized by being configured to be stretched.

  According to the present invention, a waterproof sheet is applied to the base member fixed to the mounting location, and the presser piece of the sheet pressing member is pressed against the base member from above the waterproof sheet, and the press-fit shaft is simply driven into the bush nut. The waterproof sheet can be attached without making a hole in the waterproof sheet, and the tip of the press-fit shaft hits the bottom of the auxiliary member to push down the auxiliary member. By being pressed against the spread piece portion, the gap between the spread piece portions is widened and widened, so that the spread portion can be spread smoothly and reliably.

  Therefore, even if the waterproof sheet is relatively thick, the waterproof sheet can be stretched and fixed more firmly.

  Further, as shown in the second embodiment, it comprises a rotation stopper plate that presses and fixes the waterproof sheet to the base member, and the press-fitting shaft is fixed to the rotation stopper plate by a bush nut or welding, and Since the waterproof sheet is fixed and stretched between the presser end of the rotating stopper plate and the side wall of the base member when the moving stopper plate is rotated using a tool, it is relatively easy to operate. You can attach a tunnel tarpaulin.

  It is a perspective view of a tunnel waterproof sheet fixture.   It is a longitudinal cross-sectional view of FIG.   It is explanatory drawing of the usage method of a waterproof sheet fixture.   It is explanatory drawing of the usage method of a waterproof sheet fixture.   It is explanatory drawing of the usage method of a waterproof sheet fixture.   It is a front view of an auxiliary member.   It is a side view of an auxiliary member.   It is a front view of a rotation stopper.   It is a top view of a rotation stopper plate.   It is sectional drawing of a base member.   It is a top view of a base member.   It is a side view of a base member.   It is a top view which shows the rotation direction of a rotation stopper plate.   It is explanatory drawing which showed the position of the rotation process of a rotation stopper plate.   It is a top view of the fixed position after completion of rotation of a rotation stopper plate.   It is sectional drawing after the completion of attachment of the waterproof sheet | seat fixture using a rotation stopper.

  In the process of constructing the tunnel, it is a fixture used to attach the waterproof sheet 40 to the inner surface of the structure inside the excavated tunnel, and if the structure is an H-section steel 5, the surface of the H-section steel 5 A base member 10 fixed to the base member 10, a sheet pressing member 20 that presses and fixes the waterproof sheet 40 to the base member 10, and an auxiliary member 30 attached to the sheet pressing member 20. A side wall portion 12 rising from both the left and right sides of the base member 10 fixed to the surface of the base member 10 and a retaining piece portion 13 bent from the front end portion of the side wall portion 12 toward the inside. Reference numeral 20 denotes an upper surface portion 21 provided with a bush nut 25, an expanded piece portion 22 that is bent inward from the left and right sides of the upper surface portion 21, and an outward direction from the distal end portion of the expanded piece portion 22. A pressing piece 23 which is song formed, and a pressing end portion 24 formed in the inverted rounded shape toward the upper surface side from the tip of the presser piece 23.

  The auxiliary member 30 is formed in a U-shape in a side view and has a bottom part 35 that connects the opposing spreading part 31 and the lower end part of the spreading part 31, and a lower part of the spreading part 31. Is capable of coming into contact with the expanding piece 22 and the bottom 35 is disposed below the bush nut 25.

  When the press-fit shaft 7 is driven into the bush nut 25, the auxiliary member 30 moves with the intrusion movement of the press-fit shaft 7, and the push-and-spread piece 31 is pressed against the spread piece 22. The tunnel waterproof sheet mounting tool is configured to widen and widen the gap between the expanded piece portions 22.

  In addition, the lower part of the flared piece portion 31 of the auxiliary member 30 includes a squeezed portion 34 formed so that the width gradually decreases toward the lower end portion, and both sides of the squeezed portion 34 are the expanded piece portions. 22 is a tunnel waterproof sheet fixture that is formed so as to be able to contact the inner surface of 22.

Description of Example 1

  Based on FIG. 3 thru | or FIG. 5, the waterproof sheet attachment procedure of the tunnel waterproof sheet fixture of this invention is demonstrated.

  As shown in FIG. 3, a waterproof sheet 40 is applied to the base member 10 fixed to the attachment position of the H-shaped steel 5, and the pressing piece portion 23 of the sheet pressing member 20 is pressed against the base member 10 from above the waterproof sheet 40. As shown in FIG. 4, the waterproof sheet 40 can be attached without making a hole in the waterproof sheet 40, as shown in FIG. 5, by simply driving the press-fit shaft 7 into the bush nut 25.

  Further, the tip of the press-fit shaft 7 abuts against the bottom 35 of the auxiliary member 30 to push down the auxiliary member 30, and as the press-fit shaft 7 enters and moves, the flared piece 31 is brought into pressure contact with the widened piece 22. Since the gap between the open piece portions 22 is widened and widened, the spread portion can be smoothly and reliably spread.

  Therefore, even if the waterproof sheet 40 is relatively thick, the waterproof sheet 40 can be stretched and fixed more firmly.

Description of Example 2

  Hereinafter, based on FIG. 7 thru | or FIG. 15, 2nd Example of the tunnel waterproofing sheet fixture of this invention is described.

  In the process of building a tunnel, it is a fixture that is used to attach a waterproof sheet to the inner surface of the structure inside the excavated tunnel, and is a base fixed to the surface of a hardened concrete surface, natural ground surface, or H-shaped steel It is a tunnel waterproof sheet mounting tool composed of a member 10 and a rotation stopper plate 230 that presses and fixes the waterproof sheet 40 to the base member 10.

  When the press-fit shaft 7 is firmly fixed to the rotation stopper plate 230 by the bush nut 25 or welding and the rotation stopper plate 230 is rotated, the presser end 24 of the rotation stopper plate and the side wall of the base member 10 This is a tunnel waterproof sheet fixture configured such that the waterproof sheet 40 is fixed and stretched between the portions 12.

  Hereinafter, a tunnel waterproof sheet mounting process according to the second embodiment of the present invention will be described with reference to FIGS.

  When the waterproof sheet 40 is applied to the base member 10, the rotation stopper plate 230 is pushed in as shown in FIG. 12, and the rotation stopper plate 230 is rotated as shown by the arrow a in FIGS. In this state, the presser piece 24 of the rotation stopper plate 230 is brought into contact with the retaining piece 13, and as a result, the waterproof sheet 40 has the presser piece 24 and the side wall of the rotary stopper plate 230 as shown in FIG. 12 and the retaining piece 13 are firmly held and stretched.

DESCRIPTION OF SYMBOLS 1 Waterproof sheet fixture 5 H-section steel 6 Primary lining concrete 7 Press-fit shaft 10 Base member 11 Bottom plate part 12 Side wall part 13 Stopping piece part 20 Sheet pressing member 21 Upper surface part 22 Expanding piece part 23 Pressing piece part 24 Pressing end part 25 Bushing nut 30 Auxiliary member 31 Spreading piece 34 Stitch 35 Bottom 40 Waterproof sheet 230 Rotating stopper plate

Claims (4)

In the process of constructing a tunnel, it is a fixture used to attach a waterproof sheet to the inner surface of the structure inside the excavated tunnel, and is fixed to the hardened concrete surface, natural ground surface, or H-shaped steel surface A base member, a sheet pressing member that presses and fixes the waterproof sheet to the base member, and an auxiliary member attached to the sheet pressing member,
A side wall portion standing upright from both the left and right sides of the base member fixed to the surface of the H-shaped steel, and a retaining piece portion that is bent inward from the front end portion of the side wall portion,
The sheet pressing member includes an upper surface portion including a bush nut, an expanded piece portion that is bent inward from the left and right sides of the upper surface portion, and a bent shape that extends outward from the tip portion of the expanded piece portion. A presser piece portion formed, and a presser end portion formed in an inverted round shape from the tip end portion of the presser piece portion toward the upper surface portion side,
The auxiliary member is formed in a U shape in a side view and has a bottom part that connects opposite spreading parts and a lower end part of the spreading part, and the lower part of the spreading part is the spreading piece. And the bottom portion is disposed so as to be located below the bush nut,
When the press-fit shaft is driven into the bush nut, the auxiliary member moves as the press-fit shaft moves in, and the spread-out piece portion presses against the spread-out piece portion, whereby the spread-out piece portion A tunnel tarpaulin fixture configured to widen and widen the gap.   The lower part of the spreading piece part of the auxiliary member includes a squeezing part formed so that the width gradually decreases toward the lower end part, and both sides of the squeezing part abut against the inner surface of the spreading piece part. The tunnel waterproof sheet mounting tool according to claim 1, wherein the tunnel waterproof sheet mounting tool is formed.   In the process of building a tunnel, it is a fixture that is used to attach a waterproof sheet to the inner surface of the structure inside the excavated tunnel, and is a base fixed to the surface of a hardened concrete surface, natural ground surface, or H-shaped steel A tunnel waterproof sheet mounting tool comprising a member and a rotation stopper plate that presses and fixes the waterproof sheet to the base member.   The press-fit shaft is fixed to the rotation stopper plate by bush nuts or welding. When the rotation stopper plate is rotated, the waterproof sheet is fixed between the holding end of the rotation stopper plate and the side wall of the base member. A tunnel tarpaulin fixture characterized by being constructed to be stretched.

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