JP2005264720A - Gantry-shaped side ditch constructing method and height adjusting fitting used for same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that, in a construction method for forming a side ditch with a gantry-shaped side ditch block installed, foundation concrete cannot be placed in raining, snowing or bad weather, and much labor is required and days are required for curing the foundation concrete. <P>SOLUTION: In this gantry-shaped side ditch constructing method, when forming the side ditch with the concrete gantry-shaped side ditch block 5 installed, a height adjusting fitting 10 is arranged on a leveled ground surface after foundation leveling such as excavation and crushed stone compaction, and the gantry-shaped side ditch block 5 is installed on the height adjusting fitting 10. The height of the gantry-shaped side ditch block is adjusted by the height adjusting fitting and a foundation formwork is framed, and then concrete is integrally placed on a foundation and a bottom panel at the same time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of constructing a gutter-type side gutter that uses a free-gradient gutter, that is, a concrete gutter-type gutter block, to easily form a gutter on a road side or the like on which a slope or a flat installation surface is formed It is related with the height adjustment metal fitting to be used.

  Fig. 6 shows the outline of the conventional method for constructing the portal gutter. (A) After excavating the ground surface 1 and adjusting the ground surface, (b) laying the ground crushed stone 2 and leveling it, rolling it to the foundation (C) The foundation mold 3 is assembled on it, (d) Mortar is placed on it, and the foundation concrete 4 is formed first. When the foundation concrete has been cured for several days, (e) the gate-type side gutter block 5 is installed, the height is adjusted with the wedge piece 6, and the bottom slab concrete 7 is cast to complete the construction. It was. In order to eliminate the difficulty in adjusting the height by the wedge piece, Patent Document 1 discloses that the lower side edges of the gate-type side groove block are placed on a strip-like support plate, and the vertical side-height adjustment bolt is used to mount the gate-type side groove block. A construction method has been proposed in which the support member is packed between the lower edge of the gate-type side groove block and the base concrete in such a state. This construction method requires the adjustment of the height adjustment bolt outside the lower edge of the gate-type side groove block, so it requires more excavation of the construction surface, so a structure that adjusts from the upper groove cover hole has also been proposed. (Patent Document 2).

Japanese Patent Publication No. 07-45753 Japanese Unexamined Patent Publication No. 08-158458

  In the case of the conventional construction method, foundation concrete cannot be placed in case of rainfall, snowfall or bad weather, and it takes time and effort. Moreover, there was a difficulty that it took days for foundation concrete curing. Furthermore, when a strip-shaped support plate is used between the lower edge portions of the gate-type side groove block, the work is complicated, the member cost is high, and the workability is also poor.

  The present invention is intended to solve the above-mentioned problems, and when forming a gutter by installing a concrete gate-type gutter block, after adjusting the foundation level such as excavation, crushed stone rolling, etc., the height adjustment fitting to the leveling After installing the gate-type side groove block on the height adjustment fitting, adjusting the height of the gate-type side groove block with the height adjustment fitting, and forming the foundation type framework as necessary, This is a method for constructing a gate-type gutter characterized by simultaneous casting of bottom slab concrete.

  The height adjusting bracket used in this construction method includes a grounding board, a male threaded portion standing up on the grounding board, and a female side thread block screwed to the male threaded section. The receiving plate has a receiving plate that receives the lower edge, and the receiving plate has a bottom plate and a side plate that follows the side of the lower edge of the gate-type side groove block.

  The present invention has solved the problem that the foundation concrete and the bottom slab concrete can be cast at the same time, which is a difficulty in the case of the conventional construction method, in that the foundation concrete cannot be placed in the event of rainfall, snowfall or bad weather. In addition, the difficulty of foundation concrete curing has been eliminated, and it has become possible to construct a free-gradient gutter with high efficiency.

  1 to 3 show a first embodiment of the present invention. In FIG. 1, (a) after excavation of the construction surface 1 and ground surface adjustment, (b) the foundation crushed stone 2 is laid and leveled, and the base is prepared by rolling and rolling is the same as before. After the foundation leveling, (c) the height adjusting bracket 10 is arranged on the leveling surface in the present invention. In the example shown in FIG. 2, four height adjustment fittings 10 are used at the bottom of the portal side groove block 5. While installing the gate-type side groove block 5 on the height adjustment metal fittings 10 arranged in this state, the height adjustment metal fitting is used to adjust the height of the gate-type side groove block to adjust the level and the slope. Then, if necessary, after assembling the foundation form 3 as shown in (d), (e) the foundation concrete 4 and the bottom slab concrete (inverted concrete) 7 are simultaneously and integrally placed.

  The height adjusting bracket 10 is shown in detail in FIG. 3, but includes a grounding board 10a, a male screw portion 10b provided upright on the grounding board 10a, and a female screw screwed to the male screw portion 10b. The receiving plate 10d has a portion 10c and receives the lower edge 5a of the gate-type side groove block 5. The receiving plate 10d has side plates 10g and 10g on both sides that follow the bottom plate 10f and the side of the lower edge of the gate-type side groove block. Since the side plates 10g, 10g are provided so as to sandwich the lower edge 5a of the gate-type side groove block 5, it can be slid to any optimum position along the lower edge 5a. The female screw portion 10c has a height adjustment allowance. The grounding board 10a and the external thread part 10b can be screwed together. The lower edge 5a of the gate-type side groove block 5 and the channel-shaped receiving plate 10d can be fastened by a screw 10e. The gate-type side groove block 5 has an upper opening, and the basic concrete 4 and the bottom slab concrete 7 can be simultaneously and integrally placed through this opening.

  4 and 5 show a second embodiment of the present invention, in which each height adjusting bracket 10 is used in common for the two front and rear gate-type side groove blocks 5 and 5. When there is a possibility that the gate-type side groove block 5 may come off from the height adjustment fitting 10, a hole 5b is provided from the lower side to the lower edge 5a of the gate-type side groove block 5, and from the receiving plate 10d of the height adjustment fitting 10 to it. The protrusion 10f protruding upward may be fitted. If the hole 5b is provided in a groove shape, the height adjusting bracket 10 can be slid and provided at an arbitrary position.

It is a figure which shows a mode that the construction method of the portal side gutter of 1st Example of this invention is implemented. It is a perspective view which shows the installation condition of the gate-type side groove block of the 1st Example. It is a front view of a height adjustment metal fitting. FIG. 3 is a perspective view corresponding to FIG. 2 of a second embodiment. It is a front view of the other Example of a height adjustment metal fitting. It is a figure which shows a mode that the construction method of the conventional portal side gutter is implemented.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction surface 2 Foundation crushed stone 3 Foundation formwork 4 Foundation concrete 5 Gate side gutter block 7 Bottom slab concrete
10 Height adjustment bracket

Claims (3)

When forming a gutter by installing a concrete gate-type side gutter block, after leveling the foundation such as excavation and crushed stone rolling, place a height adjustment fitting on the leveling ground, and place the gate-type gutter block on the height adjustment fitting A method for constructing a gate-type side gutter characterized by installing, adjusting the height of the gate-type gutter block with a height adjusting bracket, and simultaneously placing the foundation and the bottom slab into concrete. When forming a gutter by installing a concrete gate-type side gutter block, after the foundation leveling such as excavation, crushed stone rolling, etc., install a gate-type gutter block with a height adjustment fitting on the ground leveling and adjust the height A method for constructing a gate-type side groove, characterized in that the height of the gate-type side groove block is adjusted by a metal fitting, and the foundation concrete and the bottom slab concrete are simultaneously and integrally placed. A ground plate, a male screw portion standing on the ground plate, and a receiving plate having a female screw portion screwed to the male screw portion and receiving the lower edge of the gate-type side groove block. The plate is a height adjusting bracket for gate-type side groove construction having a side plate attached to the bottom plate and the side of the lower edge of the gate-type side groove block.

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