JPH08184057A - Construction method for slope of land - Google Patents

Abstract

PURPOSE: To promote work efficiency by mounting a leaning rail on a horizontal rail provided to the lower edge of a parallel-crosses shaped reinforced concrete slope in a horizontally movable manner, and providing a boring machine thereto in a liftable manner to bore water-holes in parallel crosses. CONSTITUTION: A leaning rail 4 is moved along a horizontal rail 3 so that a drill of a boring machine 7 comes to the front of a vertical beam of a parallel-crosses shaped reinforced beam 2. Then, after the rail 4 is fixed to the beam 2, a winch 8 is driven to wind up a wire rope 9, and a lift up and down frame 6 of the boring machine 7 is raised up to cross sections 11 to be bored along the rail 4. Then, when the front end of the drill of the boring machine 7 is positioned at the front of a place to be bored, the operation of the winch 8 is stopped to stop the boring machine 7 at the position. Water holes 12 are bored in the cross sections 11 up to specific depth with the drill of the boring machine 7. In the same way, the water holes 12 are bored in the whole beam 2. By the constitution, construction can be easily and safely carried out without building any scaffold, and cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for constructing a slope of a land necessary for carrying out civil engineering works such as dams, embankments, roads and residential land development.

[0002]

2. Description of the Related Art In the conventional construction method of the slope of this kind of land, a scaffold is constructed by assembling pipe materials, plate materials, etc. over the entire slope where the reinforcing beam made of reinforced concrete in the shape of double girder is constructed in advance. A drilling machine is installed on the scaffolding, and the drilling machine forms water holes at the intersections of the reinforcing beams in the shape of girders.

[0003]

SUMMARY OF THE INVENTION In the above construction method, a scaffold is formed along the slope, a drilling machine is installed on the scaffolding, and after drilling a predetermined number of water holes, the drilling machine is drilled. From the scaffolding, add more scaffolding, install the drilling machine on it,
A series of drilling work of carrying out drilling work again is repeated. Since the slope for constructing the reinforcing beam is usually wide-ranging, such drilling work requires a great deal of labor and a long time, and a large amount of pipe material or plate material is required for constructing the scaffold. . Furthermore, since a crane or the like is used to raise and lower the boring machine on and off the scaffold, it cannot be denied that the higher the scaffold, the greater the danger.

[0004]

[Means for Solving the Problems] The construction method of the slope of the land of the present invention is to construct a slope for forming a water passage hole at the intersection of the reinforcing beam made of reinforced concrete having a double girder shape formed on the slope of the land. In the construction method, a horizontal rail is provided along the lower edge of the slope, and a lower portion of a standing rail that is movable in the horizontal direction along the slope is placed on the horizontal rail. A boring machine is provided so that it can be lifted and lowered, a winch is provided on the standing rail, the boring machine and the winch are connected by a wire rope of a winch, and a boring machine is provided at each intersection of the cross beam-shaped reinforcing beams. It is to stop and park one by one, and to make water passages there by the boring machine.

[0005]

The standing rail provided on the horizontal rail provided along the lower edge of the slope is moved horizontally along the slope in that state and stopped at a predetermined position. Next, by driving the winch to elongate and retract the wire rope, the boring machine is moved up and down along the standing rail, and the boring machine is parked at a predetermined intersection of the double beam-shaped reinforcing beam, and the intersection is formed. A water passage hole is bored by the boring machine. Then move the boring machine along the slope of the land,
The boring machine is parked at the next desired location, and another water passage is bored there.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the construction method of a slope of land according to the present invention will be described with reference to the accompanying drawings. First, a horizontal rail 3 is installed along a lower edge 1a of a slope 1 on which a reinforcing beam 2 made of concrete is formed. Lay. A roller 5 at the bottom of a ladder-like standing rail 4 is placed on the horizontal rail 3, and the standing rail 4 is leaned along the slope 1 over its entire length.

A boring machine 7 is mounted on a standing rail 4 via an elevating frame 6.
And a lifting frame 6 for the standing rail 4
The winch 8 is installed on the upper end of the portion 6a of the. next,
The other end of the wire rope 9 whose one end is wound around the winch 8 is connected to a part 6b of the elevating frame 6 via a pulley 10 which is suspended above the standing rail 4.

Next, the process of drilling the water passage holes 12 at the intersections 11 of the reinforcing beam 2 having a double beam shape will be described. As shown in FIG. 1, the drill 7a of the boring machine 7 is a beam having a double beam shape. The standing rail 4 is moved along the horizontal rail 3 so as to come to the front of the beam in the vertical direction. Once the position of the boring machine 7 is determined, do not move the standing rail 4 horizontally.
It is fixed to the reinforcing beam 2 by an appropriate fixing means (not shown).

Next, the winch 8 is driven to wind up the wire rope 9, and the elevating frame 6 of the boring machine 7 is raised along the standing rail 4 to the intersection 11 of the reinforcing beam 2 to be drilled. When the tip of the drill 7a of the boring machine 7 is located in front of the planned drilling point, the driving of the winch 8 is stopped and the boring machine 7 is stopped.
Park at that location. Then, as shown in FIG. 2, while rotating the drill 7 a of the hole drilling machine 7, the drill 7 a descends toward the slope 1 to form a water passage hole 12 at the intersection 11. When the water passage hole 12 has been drilled to a predetermined depth, the boring machine 7 is raised until it is separated from the slope 1.

After the drilling work of one water passage hole 12 is completed as described above, this series of work, that is, the movement of the standing rail 4 along the horizontal rail, the standing rail 4 of the hole drilling machine 7 is performed. Moving / parking along, water hole 12 by hole drilling machine 7
Repeating the drilling and the raising of the drilling machine, the drilling work is performed over the entire surface of the reinforcing beam 2.

It is needless to say that the present invention is not limited to the above-described embodiments, and the configuration can be appropriately changed or added within the technical scope of the present invention. For example, the winch 8 is installed not on the elevating frame 6 of the standing rail 4 but on the flat ground (not shown) above the slope 1 of the land, or the pulley 1
Instead of suspending 0 on the upper part of the standing rail 4, it may be installed on the flat ground (not shown) above the slope 1.

[0012]

Since the present invention is constructed as described above,
It is possible to easily move the drilling machine to the desired location over the entire slope surface for drilling work without constructing the scaffold in a wide area along the slope surface of the land. Therefore, a large amount of pipe material and logs required for constructing the scaffold are not required, and a large amount of labor and time for constructing the scaffold are not required, so that the cost can be significantly reduced.

Further, it is troublesome to install the drilling machine on the scaffolding, and it is dangerous to remove the drilling machine from the scaffolding for each drilling work, move it to another place, and install it again. It is possible to perform the drilling work efficiently and safely by omitting unnecessary work.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

[Explanation of symbols]

 3 Horizontal rail 4 Standing rail 5 Roller 6 Lifting frame 7 Drilling machine 8 Winch 11 Intersection 12 Water passage hole

Claims (1)

[Claims] 1. A method of constructing a slope for forming a water passage hole at an intersection of a reinforcing beam made of reinforced concrete having a double girder shape formed on a slope of a land, in which a horizontal rail is provided along the lower edge of the slope. On the horizontal rail, a lower part of a standing rail that is horizontally movable along the same slope is placed, and a boring machine is vertically movable along the standing rail, and a winch is provided on the standing rail. The drilling machine is connected to the winch by a winch wire rope, and the drilling machine is sequentially parked at each intersection of the cross beam reinforcement beams, and water holes are drilled there. Construction method of the slope of the land, which is characterized by the construction.