JP4427670B2 - Anchor bolt construction equipment - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an anchor bolt construction apparatus for reinforcing a weak slope ground.
[0002]
[Prior art]
Conventionally, steep slope slopes are drilled at arbitrary intervals and anchor bolts are inserted with these heads exposed on the ground surface, and hardened materials such as cement milk are injected into the gaps and hardened. After that, a construction method has been implemented in which a net is laid on the ground surface and moored and supported by each anchor bolt, and fiber concrete is sprayed onto the ground surface in this state to reinforce the weak slope ground. .
[0003]
This main construction site is extremely loose, and in areas designated as national parks, most of the trees spreading throughout the slope cannot be cut down. As a device for installing bolts, a single pipe scaffolding is installed on the slope, and a drill device is placed on it, and then the single pipe scaffolding is dismantled sequentially and moving up and down and left and right while avoiding trees is doing.
[0004]
On the other hand, conventionally, as a drilling device that drills steep slopes and installs anchor bolts, a drill device is installed on the chlorer so that it can be lifted and swung freely, and this crawler is wound up by a wire rope that winds up with a winch A construction apparatus is known in which holes are drilled while being pulled up linearly, anchor bolts are constructed, and when construction is performed up to the top end, the position of the winch is shifted laterally and construction is performed sequentially in the same manner.
[0005]
[Problems to be solved by the invention]
In the construction equipment that installs a single pipe scaffold on the slope and places a drill device on it as in the past, the single pipe scaffold must be disassembled and reassembled each time the drill device moves, It takes a lot of time and labor to handle it, and there is a problem that the construction period becomes longer and the construction cost increases.
[0006]
In addition, in construction machinery that pulls up the crawler with a drill device linearly upward with a wire rope, inanimate objects such as trees that cannot be removed at sites where trees cannot be cut may interfere with the movement of the machinery. Impossible.
[0007]
[Means for Solving the Problems]
In the present invention, the crawler on which the drill device is mounted is pulled up with a wire rope from above the slope of the construction site, and the lateral support wire rope connected and supported to the connected members such as left and right trees, anchor pins, and lock bolts is pulled by the winch. The main feature is that the crawler can be easily moved in the left-right direction by changing its direction and can move between inanimate bodies such as narrow trees.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The purpose of enabling movement while avoiding non-animal bodies such as trees was realized by moving the crawler horizontally by pulling the crawler in the left-right direction by winding the lateral support wire rope with a winch.
[0009]
【Example】
1 and 2 show an embodiment of an anchor bolt construction apparatus according to the present invention. On a base 2 that is pivotably installed on a crawler 1, a rotary base 3 has a front end portion of the base 2 The power cylinder 6 is pivotally attached to a bracket 4 provided at the front end of the base 4 by a horizontal pivot 5 so that the power cylinder 6 is located between the rear end of the turntable 3 and the rear end of the base 2 and the telescopic rod. It is pivotally attached at the tip of 6 '.
[0010]
A bracket 7 is mounted on the front part of the turntable 3, and a bracket 10 provided on the guide pole 9 of the drilling machine 8 is pivotally attached to the turntable 8 by a horizontal pivot 11, and the turntable 3 and the guide pole 9 are connected to each other. Between the intermediate portions, a power cylinder 12 is pivotally attached at the rear end thereof and the distal end portion of the telescopic rod 12 ′.
[0011]
In the drilling machine 8, a slider 14 is slidably mounted on the guide pole 8 so as to move the drill head 13 back and forth. The slurder 14 is a power cylinder 15 having a base end attached to the guide pole 8. It is designed to slide back and forth.
[0012]
At the tip of the guide pole, a power clamp 18 is attached to a water swivel 16 attached to the tip of the drill head 13 so as to rotatably clamp the front portion of the drill pipe 17 whose rear end is clamped.
[0013]
As shown in FIGS. 2 and 3, a winch 19 is provided at the rear end portion on the base 2, and the sheaves 20a and 20b are horizontally rotated at the front end portion, and the sheave 20c is rotatable at the intermediate portion. A horizontal support wire rope 21 wound around the winch 19 is wound around this, and the horizontal support wire rope 21 is attached to a three-point support roller 22 provided between the winch 19 and the sheaves 20a and 20b. It is slidably supported.
[0014]
Now, this lateral support wire rope 21 is wrapped around one sheave 20a (right side in FIG. 3), and its end is connected and fixed to a connected member W such as a tree, anchor pin, lock bolt, etc. at the construction site. When the horizontal support wire rope 21 is wound up by the winch 19, the crawler 1 moves in the horizontal direction (right side) together with the base 2.
[0015]
When the horizontal support wire rope 21 is wound around the left sheave 20b in FIG. 3, the crawler 1 moves in the horizontal direction (left side) together with the base 2 when the same operation is performed.
[0016]
Further, as shown in FIG. 5, the base 2 between the winch 19 and the sheaves 20 a and 20 b has an arcuate guide hole 24 centered on the vertical pivot 23 in the vicinity where the lateral support wire rope 21 passes. A bolt 26 projecting upward is inserted into the tip of an arm 25 which is formed to be long in the left-right direction and mounted on the pivot 23 as a fulcrum to be horizontally rotatable. The bolt 26 is moved along the guide hole, At the position where the upward protrusion comes into contact with the lateral support wire rope 21 and bends it as shown by the solid line in the figure, the lateral support wire rope is bent by the winch 19 by being fastened and fixed by the tightening nut 27. When the roll 21 is rolled up, a force is applied in a direction (indicated by an arrow) in which the bent portion is to be a straight line (two-dot chain line in the drawing). Receiving and can be finely moved crawler 1 in the transverse direction.
[0017]
The guide hole 24 may not be an arc shape, but may be a straight line that is long in the left-right direction, and the bolt 26 can be moved laterally along this.
[0018]
A pull-up wire rope 28 is connected to the tip of the base 2, and the pull-up wire rope 28 is rotatably attached to a member W to be connected such as a number of trees, anchor pins, lock bolts, etc. on the slope of the construction site. The crawler 1 is moved upward by being wound around 29 and wound up by a lifting winch 30 provided on the top of the slope or on the ground.
[0019]
Further, an auxiliary wire rope 28 'is connected to the crawler 1 and supported by a connected member W such as an appropriate tree.
[0020]
In the above construction, as shown in FIG. 2, when the anchor bolt is constructed, the power cylinder 6 is extended on the slope of the construction site to rotate the turntable 3 upward, and the power cylinder 12 is further extended. Thus, the hole drilling machine 8 is rotated so as to be perpendicular or almost perpendicular to the slope.
[0021]
In this state, the drill head 13 is driven to rotate and the drill rod 17 is rotated via the water swivel 16, while the power cylinder 15 pushes the drill head 13 forward via the slider 14 to dig.
[0022]
After one drill rod 17 has penetrated into the ground, the second drill rod 17 is connected to the rear end portion thereof, the rear end portion is connected to the swivel 16 and dug in the same manner as described above, and further if necessary. Drilling to the required depth by adding the drill rod 17.
[0023]
After excavation, the anchor rod is inserted into the drill rod 17 penetrating into the ground, and the drill head 13 is retracted while being filled with a solidified material such as cement milk, whereby the drill rod 17 is sequentially pulled up.
[0024]
Next, the base 1 is turned to the right or left, the crawler 1 is slightly lifted, and the anchor construction is performed in the same manner as described above at a lateral point away from the already anchored portion, and the base 1 is further reversed. Turn to the side and perform anchoring in the same way, and then perform anchoring continuously at the center and three points on the left and right.
[0025]
After that, the anchor construction is successively performed in the same manner while sequentially raising the crawler 1 upward by a predetermined distance.
[0026]
When an inanimate object such as a tree that cannot be removed becomes a hindrance during this pulling up, the side support wire rope 21 is wound up by the winch 19 as described above, whereby the crawler 1 and the base 2 are moved in the lateral direction (right side). When it is necessary to move or to finely adjust the lateral movement, as described above, the bolt 26 is moved along the guide hole, and the lateral support wire rope 21 is bent and wound up by the winch 19 to mount the crawler 1 on the base. 2 and a slight movement in the lateral direction.
[0027]
FIG. 8 shows another aspect of the anchor bolt construction apparatus according to the present invention. A base 2 is attached to a crawler 1 so as to be rotatable by a power cylinder 31 at a front end portion thereof, and is horizontally mounted on the base 2. A plurality of H-shaped guide rails 32 are attached, and a work table 34 to which a wheel 33 engaged with the flange inner surface of the guide rails 32 is attached is movably installed along the guide rails 32 in the left-right direction. .
[0028]
The work table 34 is provided with a moving table 37 that moves back and forth along the guide rail 36 by a power cylinder 35, and a bracket 38 attached thereto and a bracket 39 provided on the guide pole 9 of the drilling machine 8 are horizontally mounted. The power cylinder 41 is pivotally mounted at the rear end thereof and at the distal end portion of the telescopic rod 41 ′ between the movable table 36 and the intermediate portion of the guide pole 9.
[0029]
In this anchor bolt construction apparatus, since the crawler 1 can be laterally moved together with the work table 34 of the hole drilling machine 8, the anchor construction is continuously performed at an arbitrary interval in the lateral direction while the crawler 1 is fixed at a fixed position. Can be done.
[0030]
In addition, as the crawler 1 used in the present invention, it is desirable that the left and right caterpillars be narrowed so that the crawlers 1 can pass between narrow trees by using a power cylinder in which the left and right caterpillars are arranged therebetween.
[0031]
【The invention's effect】
As described above, according to the present invention, the crawler loaded with the drill device is pulled up from above the slope of the construction site with the wire rope, and the crawler is moved in the left-right direction by winding the lateral support wire rope connected to the left and right trees with the winch. In addition, the crawler can be moved meandering between inanimate bodies such as narrow trees at construction sites where the trees cannot be cut down.
[0032]
By rotating the base on which the drilling machine is installed and moving the work table installed on the base in a lateral direction, anchor construction at multiple locations can be performed continuously at any interval. .
[0033]
By moving the bolt along the guide hole, the upward projecting part is brought into contact with the lateral support wire rope and bent, and in this state, it is tightened and fixed with a tightening nut. By winding up the wire rope, the crawler can be moved minutely in the lateral direction.
[Brief description of the drawings]
FIG. 1 is a side view of a state before construction showing an embodiment of an anchor construction apparatus used in the present invention.
FIG. 2 is a side view of a construction state showing one aspect of an anchor construction apparatus used in the present invention.
FIG. 3 is a plan view showing an outline of a base portion in the anchor construction apparatus used in the present invention.
FIG. 4 is a side view showing an outline of a base portion in the anchor construction apparatus used in the present invention.
FIG. 5 is a plan view showing an outline of a crawler horizontal minute moving device in the anchor construction device used in the present invention.
FIG. 6 is a side view showing an example of a crawler pulling structure according to the present invention.
FIG. 7 is a side view showing another example of the crawler pulling structure according to the present invention.
FIG. 8 is a side view of the construction state showing another aspect of the anchor construction apparatus used in the present invention.
[Explanation of symbols]
1 Crawler 2 Base 3 Pivot 4 Bracket 5 Pivot 6 Power Cylinder 6 ′ Telescopic Rod 7 Bracket 8 Drilling Machine 9 Guide Pole 10 Bracket 11 Pivot 12 Power Cylinder 12 ′ Telescopic Rod 13 Drill Head 14 Slider 15 Power Cylinder 16 Water Swivel 17 Drill pipe 18 Power clamp 19 Winch 20a Sheave 20b Sheave 20c Sheave 21 Lateral support wire rope 22 Three-point support roller 23 Axis 24 Guide hole 25 Arm 26 Bolt 27 Tightening nut 28 Pull-up wire rope 28 'Auxiliary wire rope 29 Sheave 30 Winch 31 Power cylinder 32 Guide rail 33 Wheel 34 Work table 35 Power cylinder 36 Guide rail 37 Moving table 38 Bracket 39 Bracket 40 Axis 41 Power cylinder 41 '' Telescopic rod

Claims (3)

A drilling machine is rotatably installed on a base that is pivotally installed on a crawler, a winch is provided on the base, and sheaves are attached to the left and right of the winch in a freely rotating manner, and the sheave is attached to the sheave. Wrap the horizontal support wire rope wound up on the winch, wrap the horizontal support wire rope around one sheave, and connect and fix the end to the connected member such as trees at the construction site located in the left and right direction of the crawler An anchor bolt construction characterized in that the lateral support wire rope can be wound up by the winch, and a lifting wire rope is connected to the tip of the base, and the lifting wire rope can be wound up by the lifting winch. apparatus. A guide rail is installed horizontally on the crawler base, a work cart that can be moved to the left and right along the guide rail, a drilling machine is installed on the work base, and a drilling machine is installed on the base. A winch is provided on the front side of the winch, and a sheave is rotatably attached to each side of the winch. A horizontal support wire rope wound around the winch is wound around the sheave, and the horizontal support wire rope is wound around one sheave. The end portion is connected and fixed to a member to be connected such as a tree on the construction site located in the left-right direction of the crawler, and the horizontal support wire rope can be wound up by the winch, and a pull-up wire rope at the tip of the base , And the lifting wire rope can be wound up by a lifting winch. . A drilling machine is installed on the base installed on the crawler, and a winch is provided on the base. A sheave is rotatably mounted on the left and right of the winch, and the winch is wound around the sheave. wound a horizontal supporting wire rope that is, the horizontal supporting wire rope wound around the one sheave connected and fixed to the connecting member of the trees or the like construction site located its end in the lateral direction of the crawler, the lateral A support wire rope can be wound up by the winch , a pulling wire rope is connected to the tip of the base, and the pulling wire rope can be wound up by the pulling winch, and is laterally supported at the base between the winch and the sheave. In the vicinity of the part where the wire rope passes, a guide hole is formed long in the left-right direction of the crawler. An anchor bolt characterized in that a bolt can be moved along a hole and can be fastened and fixed by a tightening nut, and a protruding portion of the bolt protruding from the guide hole can come into contact with the lateral support wire rope. Construction equipment.

Images