JPH0959987A - Panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a panel, which is manufactured and executed easily and superposed by a small number of parts, by forming edge sections having the same angle and inclined engaging sections to a panel body made of a steel plate and at the upper and lower ends of supports at both sides of the panel body in point symmetry. SOLUTION: A panel body section 1, in which a reinforcing member is interposed between oblong steel plates 2 and edge sections 2a, 2b are formed at both upper-lower end sections in point symmetry, is formed. Square-shaped supports 4, from which upper-lower side inclined engaging sections 6, 5 at the same angles of inclination as the edge sections 2a, 2b respectively are extended and which have vertical load- receiving members 8, 7, are welded at both side ends of the main body section 1, and a panel is formed. When the panels are superposed and used, the upper panel is hung down while using a bolt inserting hole 6c as a hanging port first, and the lower-side inclined engaging section 5 is hung up gradually while being brought into contact with the upper-side inclined engaging section 6 of the lower panel. The vertical load-receiving members 7, 8 of the upper and lower panels are abutted, bolts are inserted into the bolt inserting holes 6c, and screwed to female screw members 5c, and the upper and lower panels are unified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel used for a box type earth retaining device for retaining earth on an excavated earth wall portion when burying a buried pipe or the like.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Publication No. 58-28027 discloses an earth retaining tool shown in FIG. The retaining tool for earth retaining is arranged in parallel with the seating plate 51 having the support columns 53 and 53 having the insertion holes 55 of the cutting beams 54 fixed along the both end edges of the horizontally long rectangular iron plate 52; A cutting beam 54 for connecting the seating plates 51 to each other; a cutting shoe 56 attached to the lower end of the support column 53 for pushing and positioning the supporter assembled through the cutting beams 54 into the trench. And a connecting piece 57 for stacking and connecting 51 in the vertical direction.

At the upper and lower ends of the iron plate 52, a substantially stepped edge portion 52 whose upper surface is horizontal and whose lower surface is sloped is formed.
a is formed. Further, the connecting piece 57 is provided with a hanging port 58 for hanging the seating plate 51.

[0004]

In the above prior art,
In addition to the seating plate 51 to which the pillars 53 are fixed, a connecting piece 5 for vertically stacking and connecting the seating plate 51
7. A cutting shoe 56 or the like is required to push the supporter into the groove and position it, which increases the number of parts, which is not preferable in terms of both manufacturing and construction. In addition, there is a problem that excavated mud is likely to accumulate on the upper surface of the edge portion 52a formed on the iron plate 52, and the supporting tool is easily damaged. It is an object of the present invention to provide a panel used in a box type soil retaining device that can solve the above problems.

[0005]

According to the panel of the present invention, a reinforcing member is interposed between two horizontally long steel plates, and a horizontally long main body portion having edge symmetry at upper and lower ends is formed. A pillar having a locking hole for the beam, which is welded to both ends of the main body in the longitudinal direction; and extended to the lower end of the pillar at the same angle as the edge formed in the main body. A lower inclined engagement portion, in which a female female member is welded to an intermediate portion thereof; and an upper portion extending upward at the same angle as the edge portion formed on the main body portion, on the upper end portion of the column. An inclined engagement portion having a bolt insertion hole formed at an intermediate position thereof; and an up-down load receiving member welded to upper and lower end portions of the column at longitudinal side surfaces of the main body portion. ing.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described with reference to the drawings. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is a sectional view and a right side view of FIG.

In the main body 1 of the panel, a reinforcing member 3 is interposed between two horizontally long steel plates 2 and 2, and edge portions 2a and 2b are formed point-symmetrically at the upper and lower ends. At both ends of the main body 1 in the longitudinal direction, square pillars 4 having a locking beam locking hole 4a are welded. The shape (cross-sectional shape) of the pillar is not limited to the rectangular shape. Further, the edge portions 2a and 2b may be formed by bending at least one of the steel plates 2 or may be formed by a welded structure.

At the lower end of the rectangular column 4, a lower inclined engaging portion 5 consisting of an inclined portion 5a and a vertical portion 5b is formed by extending at the same angle as the edge portion 2b formed on the main body. There is. A female female member 5c is welded to an intermediate portion of the lower inclined engaging portion 5.

On the upper end of the prismatic column 4, an upper inclined engaging portion 6 composed of an inclined portion 6a and a vertical portion 6b is formed so as to extend upward at the same angle as the edge portion 2a formed on the main body portion. There is. A bolt insertion hole 6c is formed at an intermediate position of the upper inclined engagement portion.

A vertical load bearing member 8 is provided at the upper end of the longitudinal side surface of the main body 1 of the rectangular column 4, and a vertical load bearing member 7 is provided at the lower end thereof. Welding is performed with the lower inclined engagement portion 5 sandwiched therebetween.

Then, a pair of panels 1, 1 are arranged so as to face each other, and a cutting beam (not shown) is secured between the pair of panels 1, 1 in the same manner as in the prior art. It is inserted into the hole 4a and assembled as a box type soil retaining device.

In the case of a shallow digging groove, the panel 1 requires only one step. Then, the edge portion 2b formed at the lower end of the panel
And the edge portion of the lower inclined engagement portion 5 formed at the lower end portion of the column 4 function as a cutting shoe. Further, the bolt insertion hole 6 formed in the upper inclined engagement portion 6
c functions as a suspension port for suspending the panel.

On the other hand, in the case of a deep excavation trench, the panels 1 are stacked in multiple stages and used as a box type soil retaining device. The state of stacking and engaging at this time will be described with reference to FIG. FIG. 3 shows a situation in which the upper inclined engagement portion 6 of the lower panel and the lower inclined engagement portion 5 of the upper panel that is stacked on the upper inclined engagement portion 6 are stacked and engaged.

Gradually suspend the upper panel towards the lower panel. The slanted portion 6a of the upper slanted engaging portion 6 and the slanted portion 5a of the lower slanted engaging portion 5 descend while contacting each other. Finally, the vertical end faces of the vertical load receiving members 7 and 8 of the upper panel and the lower panel come into contact with each other to receive the vertical load.

In this state, the inclined portions 6a and 5a come into contact with each other and engage with each other. Thus, with the upper and lower panels engaged, a bolt (not shown) is inserted into the bolt insertion hole 6c and screwed into the female screw member 5c. This causes the upper panel to become integral with the lower panel.

Then, the vertical load receiving members 7 and 8 are in a state of sandwiching the tips of the lower inclined engagement portion 5 of the upper panel and the upper inclined engagement portion 6 of the lower panel, respectively, and the lateral displacement is also caused. To be prevented.

It is noted that the edge portion formed at the lower end of the panel functions as a cutting shoe.
Is the same as in the case of one step. Further, since the upper and lower panels are inserted from the bolt insertion holes 6c of the lower panel and are integrated by the bolts, the bolt insertion holes 6c of the upper panel are
It functions as a hanging port for hanging the panel, and the upper and lower panels are lifted as a unit.

[0018]

Since the panel of the present invention is constructed as described above, the panel can be used in a single stage, or the same panel can be used by stacking in multiple stages. In addition, in these cases, it is not necessary to separately prepare a connecting piece, a cutting shoe and the like as in the conventional case in addition to the panel body, so that the number of parts is reduced and it is extremely effective from both aspects of production and construction. Further, since the panel does not have a site where excavated mud is accumulated, damage by mud can be avoided.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of an example of an embodiment of the present invention.

FIG. 2 is a sectional view and a right side view of FIG.

FIG. 3 is an illustration of a situation in which the upper panel is stacked and engaged with the lower panel.

FIG. 4 is an explanatory perspective view of a conventional earth retaining tool.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body part, 2 ... Steel plate, 2a, 2b ... Edge part, 3 ... Reinforcement member, 4 ... Struts, 4a ... Locking hole of a girder, 5 ... Lower inclination engaging part, 6 ... Upper inclination engaging part , 7, 8 ... Vertical load receiving member.

Claims (1)

[Claims] 1. A panel for use in a box-type soil retaining device, which is assembled by interposing a beam across a pair of panels arranged opposite to each other, wherein: this panel is a reinforcing member between two horizontally long steel plates. And a horizontally elongated main body having edge portions formed in point symmetry at the upper and lower ends thereof; and a pillar having welding holes for the cut beams welded to both longitudinal ends of the main body. A lower tilted engaging portion extending at the same angle as the edge portion formed on the main body portion at the lower end portion of the column,
A female female member is welded to an intermediate portion thereof; an upper inclined engaging portion extending upward at the same angle as the edge portion formed on the main body portion at an upper end portion of the pillar, and an intermediate position thereof. A panel having a bolt insertion hole formed therein; and a vertical load receiving member welded to upper and lower end portions of the support column on a longitudinal side surface of the main body portion.