JPH0676755B2 - Support equipment of rock drilling machine for slope drilling and slope drilling method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides an anchor burial hole that is indispensable for burying an anchor in a concrete frame construction method that also uses an anchor, which is one of slope stabilization construction methods. The present invention relates to a rock drill support device for drilling a slope and a method for drilling a slope, which can be easily drilled at any position on the slope.

[Conventional technology]

There are vegetation method, concrete tension method, concrete frame method, etc. for stabilizing construction methods such as cut slopes such as earth and sand or rocks, or rising slopes that are formed during site preparation and road construction. In the construction method, a construction method in which an anchor is used in combination is widely adopted in order to better fix the concrete frame to the slope.

In such an anchor combined construction method, a hole drilling rod of a rock drill is usually passed through an anchor hole previously drilled at a grid point of a concrete frame, and the hole for anchor embedding is almost Perforated vertically, but often
Since the slope is a steep slope, the following methods were exclusively used for construction.

That is, (Prior Art 1) a method in which a scaffold is set on a slope and a person suspended and supported by a rope directly operates a rock drill to make a hole (Fig. 8).

(Prior Art 2) A method in which a self-propelled drilling machine (so-called crawler drill) generally used when drilling rocks in civil engineering, mining, etc. is used as it is.

(Prior Art 3) A machine frame (a guide shell or a chain feed shell, etc.) in which a rock drill is freely movable back and forth in a bucket portion of a working machine such as a backhoe.
A method of fixing and using by an appropriate means (Fig. 9).

And so on.

[Problems to be Solved by the Invention]

However, each of these methods has the following problems.

In the method of the prior art 1, i) the person must hold the rock drilling machine that vibrates directly to perform the work. Therefore, the working condition is extremely severe such as the hand getting numb, and therefore, the work can be performed for a long time. It is impossible to work continuously. In fact, it is well known that a vibrating tool such as a rock drill or a chainsaw adversely affects the human body as an occupational disease (white wax disease).

ii) Further, in such a method in which a person directly operates a rock drill, it is difficult to fix and hold the rock drill in a predetermined position. It took about 10 times longer and was extremely inefficient.

iii) Furthermore, in this method, since the piercing work is performed on the scaffolding with the weight kept on the rope, there is always the risk of falling, and construction especially on slopes with large height differences is extremely dangerous. It had to be something like that.

iv) Assembling and disassembling scaffolding takes a lot of time and effort.

There was such a problem.

In this respect, the methods of the prior arts 2 and 3 do not have the above-mentioned problems, but instead have the following drawbacks. That is, i) The working radius of a work vehicle such as a crawler drill depends on the length of the boom of the work vehicle, and it is impossible to work at a height exceeding that length. If it exceeds, then these methods cannot be adopted.

By the way, the known self-propelled drilling machine (crawler drill) is
Since it is a work vehicle mainly used in tunnels, the boom length is as small as around 5 m, and many known work vehicles such as backhoes are also manufactured as general-purpose machines, so the boom length is Is relatively long, 10
This is because it rarely exceeds m.

Therefore, when the height of the slope exceeds the workable range, the conventional technique 1 still has to be used.

ii) In addition, in the rock drills attached to the booms of these work vehicles, it is substantially necessary to use them to drill a slope below the construction base surface (travel surface of the work vehicle). It was almost impossible.

Therefore, when such a construction is required, the method of the prior art 1 is still unavoidable.

There was such a problem.

The present invention solves both the problems of the former related art 1 and the problems of the latter related arts 2 and 3 as described above, and a novel supporting device for a rock drilling machine for slope drilling. And a method for punching a slope using the same.

[Means for solving problems]

A support device for a rock drilling machine for slope drilling of the present invention made to achieve the above object is a means for supporting a rock drilling machine so as to be movable in the front-rear direction and a rock drilling machine in the moving direction. At the front end of the guide shell with a drive means for
A clamping device for clamping the concrete frame constructed on the slope is provided, and in the guide shell,
A suspension supporting means for suspending and supporting the suspension is provided, and the method of boring a slope of the present invention using the suspension supporting means is provided with a clamping device at a front end portion of the guide shell. Lift the rock drill support device using a crane, and position the rock drill supported by the rock support device in front of the part to be drilled on the slope where the concrete frame has been constructed in advance. Then, using the clamp device, the front end side of the guide shell is fixed to the concrete frame, and the rock drilling rod of the rock drilling machine is held in a desired posture with respect to the slope, Is operated to make a hole in the slope.

[Action]

Since the support device of the rock drilling machine for slope drilling according to the present invention is provided with the clamp device at the tip end portion of the guide shell, the support device of the rock drilling machine, according to the method of the present invention, It can be used as follows.

That is, when drilling a hole for an anchor using a rock drilling machine supported by the supporting device of the present invention on a slope on which a concrete frame has been constructed in advance, an appropriate means is provided at an appropriate position of the guide shell. The rope for lifting the guide shell is connected via the length of the rope, and when the supporting device of this rock drill is hoisted through the rope, the desired inclination angle of the tip shell is lowered to the guide shell. It is set in advance so that it is given, and after that, when the supporting device of the rock drilling machine of the present invention is hoisted by the crane of the mobile crane using the hoisting rope, the hoisting machine is operated by operating the crane. A rock drilling rod supported on a rock supporting device can be brought to a position opposite to a hole (deep hole) for an anchor previously drilled in a concrete frame. When the concrete frame is clamped by the clamp device provided at the front end of the guide shell, the supporting device of the rock drilling machine of the present invention is such that the front end of the guide shell is fixedly held to the concrete frame through the clamp device. Therefore, the drilling rod of the rock drill supported on the rock drill support device of the present invention is extremely stable toward the anchor hole (deep hole) previously drilled in the concrete frame. Held in a state.

In addition, the work of correctly facing the hole drilling rod of the rock drill to the hole for the anchor is to connect the two ropes to the appropriate places of the rock drill support device in advance according to the usual method of hoisting work by the crane. In addition, when the rock drill support device is hoisted to a desired height with a crane, this can be easily done by operating these two ropes into anchor holes (deep holes) from both sides. .

As described above, when the rock drilling rod of the rock drill is held in the desired position toward the drilling position on the slope and the rock drill is operated, the anchor hole is opened at the desired position on the slope. You can open

When one hole has been drilled and the next hole has been drilled, the clamp is released and the rock drill support device of this invention is lifted by the crane. Needless to say, it can be moved to a position.

〔Example〕

1 to 4, a rock drill support device 1 according to the present invention is attached to a guide shell 2 having the same structure as a known commercial product and a front end portion of the guide shell 2. It is configured with the clamp device 3.

The guide shell 2 includes two steel materials 2a and 2b having a U-shaped cross section and two steel materials 2a and 2a arranged back to back.
The guide shell 2 is configured with appropriate means (not shown) for connecting a predetermined interval α between the two 2b and connecting them to each other. , A pair of sprocket wheels 4 and 5 arranged at both ends thereof and rotatably supported respectively, and an endless roller chain 6 suspended between the pair of sprocket wheels 4 and 5. .

Further, on this guide shell 2, a drifter bed 8 for mounting and fixing the rock drill 7 thereon is slidably supported along the longitudinal direction of the guide shell 2, A drive motor 9 for driving the roller chain 6 is disposed below the guide shell 2, and the roller chain 6 is connected to the drive motor 9 via an interlocking mechanism (not shown). Cage and roller chain 6
Is connected to the drifter bed 8, and when the roller chain 6 is driven in the forward or reverse direction, the rock drilling machine 7 mounted on the drifter bed 8 moves on the guide shell 2 and the guide shell 2. 2 is driven in the front-back direction along the longitudinal direction. Further, on the upper surface of the front end portion of the guide shell 2, a centrizer 10 for guiding and holding the tip side of the boring rod 7a of the rock drilling machine 7 which is driven forward and backward is disposed.

At the tip of the guide shell 2 having the above structure, the concrete frame 11 constructed on the slope according to the present invention is provided.
A clamp device 3 for clamping the guide shell 2 is provided. The clamp device 3 of this embodiment is detachably attached to the front end portion of the guide shell 2 in the longitudinal direction of the guide shell 2. A substrate 12 perpendicular to the substrate 12 and the substrate 12
A first clamp member 13 attached to one side of the first clamp member 13 and a second clamp member 13 arranged so as to be movable back and forth with respect to the first clamp member 13.
And the clamp member 14 of
The clamp member 14 is attached to the tip of the piston rod 15a of the fluid cylinder 15 attached to the other side of the substrate 12. The first clamp member 13 and the fluid cylinder
Each of 15 is detachably attached to the substrate 12.

In order to make it possible to easily lift the guide shell 2 provided with the above-described clamp device 3 on the support device 1 of the rock drilling machine of this embodiment by a crane or the like,
The following guide shell suspension supporting means 19 is attached to the guide shell 2. That is, the suspension supporting means 19 of this embodiment is provided with a guide shell supporting base 20 attached below the guide shell 2 and four corners of the supporting base 20 and the lower end portions thereof are pivotally attached to the supporting base 20, respectively. Connecting rods 23 and 24 that are connected 21 and 22 to each pair of front and rear, and these two pairs of connecting rods
The upper ends of 23 and 24 are configured with hook engaging blocks 30 that are pivotally connected 25 and 26, and the guide shell 2 is fixed on the support base 20a.

The front and rear connecting rods 23 and 24 are configured to be telescopic by combining two tubular members 23a and 23b and 24a and 24b in a telescopic manner, and the inner tubular members 23b and 23b. 24b has a proper number of pin holes 27 and 28, respectively, arranged at appropriate intervals, and these two pairs of connecting rods 23 and 24 are placed at appropriate positions on the tips of the outer tubular members 23a and 24a. The pin holes 31 and 32 provided and the inner tubular member
When the pins 33 and 34 are inserted through the arbitrary pin holes 27 and 28 formed in the holes 23b and 24b, the respective lengths can be adjusted arbitrarily.

Further, the hook engaging block 30 is formed with a hook engaging hole 29, and the hook 29 of the crane is inserted into the hole 29.
When 35 is hooked, the guide shell 2 mounted on the support base 20 of the guide shell can be lifted together with the support base 20 to a desired height.

Although not shown, it goes without saying that the rock drilling machine 7 and the drive motor 9 are connected to their respective power sources.

Next, the rock drill support device 1 according to the present invention, in which the guide shell 2 is fixed on the support base 20 as described above.
A work procedure in the case of hoisting with a crane vehicle 36 and making a hole for anchor embedding in the concrete frame 11 on the slope will be described.

As shown in FIG. 3, in the concrete frame construction method that also uses an anchor, a hole for embedding the anchor is generally used.
When drilling 40 grid points of the concrete frame 11, etc., in order to avoid damage to the concrete frame 11 and increase work efficiency, in this concrete frame 11, in the vicinity of the drilled portion of the hole 40,
The concrete frame 11 is formed in advance leaving a deep hole 41 having a diameter of about 50 mm and perpendicular to the slope. Therefore, when drilling a hole 40 for burying an anchor in the slope 42 after passing through such a deep hole 41, the drilling rod of the rock drilling machine 7 mounted on the supporting device 1 of the rock drilling machine. It is necessary to position the cutting edge of 7a in front of the deep hole 41 and keep its approach angle substantially perpendicular to the slope 42, but in the rock drill support device 1 of this embodiment, Guide shell 2 that determines the approach angle of the rock drill 7
Can be suspended by a crane via the suspension supporting means 19 as described above, and therefore, the connecting rods 23 and 24 for each of the front and rear pairs constituting the suspension supporting means 19 are formed.
Of these, at least one of the front and rear pair of connecting rods (24 or 23) is stretched and adjusted to adjust the fulcrum positions 25 and 26 when the supporting device 1 of the rock drill is lifted. By changing in the front-back direction, the inclination angle of the guide shell 2 can be adjusted to an arbitrary angle. That is, the angle of the slope 42 is already known at the stage of designing the slope and, in many cases, has a substantially constant value. Therefore, when the supporting device 1 of the rock drill of the present invention is lifted by a crane. , So that the inclination angle of the guide shell 2 is perpendicular to the slope 42 (see FIG. 3), in advance, the connecting rod 23
・ After setting pins 33 and 34 positions of 24, hoisting support device 1 of this rock drill by winch of crane car 36, and further supporting boom and winch of crane car 36 and this rock drill beforehand. By operating two ropes or the like that are preliminarily connected to the proper places of the device 1, the depth of the concrete frame 11 that has been preliminarily constructed on the slope 42 by cutting the drilling rod 7a of the rock drilling machine 7 is used. If it is located in front of the hole 41 (see FIG. 3), the drilling rod 7a of the rock drilling machine 7 can be vertically opposed to the slope 42 at the drilling site.

Of course, when you do not know the slope angle of slope 42, or when slope 42
If there is unevenness and the inclination angle is not constant, for the moment, hoist the rock drill support device 1 to the drilling site,
Needless to say, after confirming the inclination angle, lower it once and set the pin position again.

Therefore, the pair of clamp members of the clamp device 3 is previously formed.
If the holes 13 and 14 are opened and the boring rod 7 of the rock drilling machine 7 is positioned in front of the deep hole 41 as described above, the clamp attached to the tip of the guide shell 2 Since the pair of clamp members 13 and 14 of the device 3 can be brought to a position where the concrete frame 11 can be sandwiched between the two members, slightly below the perforated portion, when such a state is reached , Second driven by driving the fluid cylinder 15 and attached to the tip of the piston rod 15a
If the clamp member 14 is pushed out in the direction of the first clamp member 13 facing the clamp member 14, the pair of clamp members 14
The concrete frame 11 can be gripped with 13 and 14, and the support device 1 of the rock drilling machine has the tip end portion of the guide shell 2 fixed to the concrete frame 11 via the clamp device 3.

Therefore, in such a state, if the rock drill 7 is driven next and it is advanced on the guide shell 2,
After passing through the deep hole 41, the drilling rod 7a is pushed toward the drilling site, and the anchor embedding hole 40 can be drilled on the slope 42.

After drilling, the rock drill 7 is retracted on the guide shell 2,
It goes without saying that when the clamp device 3 is released, the crane can be operated to retract from the drilling position of the rock drill support device 1.

In the above embodiment, since the clamp member 13 and the hydraulic cylinder 15 constituting the clamp device 3 are detachably attached to the base plate 12, before the concrete is poured into the formwork of the concrete frame 11, the anchor is placed. When it becomes necessary to directly bore holes for embedding in the slope, these are removed from the substrate 12, and instead of the clamp device 3,
When the pin 103 as shown in FIG. 5 is mounted on the substrate 12, the pin 103 is pushed against the slope, so that the supporting device 1 of the rock drill is mounted on the slope in the same manner as in the above case. Can be fixed vertically.

Further, in the above-described embodiment, the length of the connecting rods 23 and 24 is made variable so that the hoisting fulcrum position of the crane of the rock drill support device 1 is changed to adjust the inclination angle of the guide shell 2. In another embodiment, the support base 20
Of the connecting rods 23 and 24 for each pair of front and rear connected to,
At least one pair of connecting rods (23 or 24)
By configuring the guide shell 2 or the connecting position of the guide shell 2 to the support base 20 to be adjustable in the front-back direction,
The tilting angle of the guide shell 2 may be adjusted by changing the position of the hoisting fulcrum of the crane of the rock drill support device 1.

Further, in the above embodiment, the means for lifting the guide shell 2 by the crane is provided with the guide shell support base 20 mounted below the guide shell 2, the two pairs of connecting rods 23 and 24, and the hook engaging means. Although it is configured by the block 30, etc., in other embodiments, the connecting rods 23, 24 are
May be replaced with a wire rope or a chain, and these connecting rods, wire ropes, chains, etc. may be directly connected to the crane hook without the hook engaging block 30 as described above. You may.

Further, in another embodiment, the guide shell support 20 and the like as described above may not be used at all, and the guide shell may be directly hung with a wire rope or the like.

That is, as another embodiment, as shown in FIG. 6, a pair of clamp members 13 'and 14' constituting the clamp device 3'is provided in advance with one axis line (X- If it is configured to be rotatable around X), the inclination angle of the guide shell 2 can be freely adjusted even after the concrete frame 11 is gripped by the clamp device 3 ', so that there are many irregularities. On slopes where the inclination angle is not constant, not only the approach angle of the rock drill 7 can be finely adjusted easily, but also when the clamp device 3'is configured as described above, As shown in FIG. 7, a guide rope 2 is not attached to the guide shell support 20 as described above, but a wire rope 45 is connected to an appropriate place on the rear side of the guide shell 2 and the wire rope 45 is lifted by a winch of a crane. 3'to the perforation site Bringing the concrete frame 11
After gripping (see the chain line in FIG. 7) and operating the winch to lower the rear end side of the guide shell 2, the guide shell 2 can be positioned perpendicular to the slope (FIG. 7). (Solid line), in the rock drill support device according to the present invention, it is not always necessary to dispose the suspension supporting means 19 and the special inclination angle adjusting means and the like on the guide shell 2 as described above. .

Further, according to the present invention, since the supporting device 1 of the rock drill has a relatively light weight, the supporting device to which the rock drill is attached does not need to be hung by a crane or the like, and the scaffolding method is used. In terms of the surface, a person can support it by hand and use it. In that case, most of the load of the whole drilling device is loaded on the clamp device 3 at the tip of the guide shell 2, and It suffices to lightly support the rear end of the guide shell 2 or support it with a sticking stick or the like.

〔The invention's effect〕

The support device for a rock drilling machine according to the present invention is configured as described above, and can be used as described in the operation, so that the following effects can be obtained. it can.

That is, according to the present invention, the rock drill support device is
When you use a crane truck to lift it to the desired height at the slope process site, the tip of the drilling rod of the rock drill on the guide shell is pre-installed on the slope to be drilled from now on. It can be positioned in front of the concrete frame, and the clamping device that is installed at the front end of the support device of this rock drill can be used to fix the front end side of the guide shell to the concrete frame. The drilling method of the present invention can be performed by hoisting a rock drill support device to the above position using a crane and fixing the front end of the guide shell to a concrete frame, that is, drilling the rock drill. This is a method in which the rock drill is operated to make a hole in the slope while the hole rod is kept in a desired posture with respect to the slope, so compared with the prior art 1 mentioned at the beginning, i) A person You don't have to use it to carry a rock drill or move it on a slope.

ii) Even if the operator does not directly support the rock drill with his or her own hand on the sloped scaffold, the supporting device of the rock drill and the load of the rock drill supported on it are large. The boring operation can be performed while the portion is supported by the clamp device and the crane.

iii) Therefore, as a matter of course, according to the device and method of the present invention, unlike the conventional method, the operator does not need to perform the piercing work while hanging on the rope, and it is safe even on a slope with a large height difference. Drilling work for anchors can be performed.

iv) Moreover, since the front part of the supporting device of the rock drill holding the rock drill is firmly fixed to the concrete frame by the clamp device, that is, it is fixed so as not to be retractable,
According to the support device of the present invention, the cutting edge of the drilling rod of the rock drill does not shake, and compared with the case where a person directly holds the rock drill in the working position, it is much quicker (about
Can be pierced in 1/10 time).

Compared with the method of using the self-propelled boring machine (crawler drill) of the prior art 2 and the method of fixing the guide shell to the bucket portion of the backhoe of the prior art 3 described at the beginning. Since drilling work can be performed using a crane truck, the working radius is dramatically improved, and it is also impossible to drill a high-level slope that was previously impossible. It is also possible to perforate the sloped surface located below the construction base surface. (FIG. 3) and the like can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 4 show an embodiment of a rock drilling machine supporting device according to the present invention. FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. FIG. 4 is a schematic side view showing a use state, FIG. 4 is a perspective view of the main part showing a use state, FIG. 5 is a side view of a pin replacing a clamp device, and FIG. 6 is another embodiment. FIG. 7 is a plan view of the clamping device, FIG. 7 is a side view of the supporting device of the rock drill showing its usage state, and FIGS. 8 and 9 are sketches showing a conventional drilling method. 1 ... Support device for rock drill, 2 ... Guide shell, 3 ... Clamping device, 7 ... Rock drill, 7a ... Drilling rod, 11 ... Concrete frame, 12 ... Base plate, 13 ... First clamp member, 14 ... Second clamp member, 15 ... Fluid cylinder, 19 ... Guide shell suspension support means, 20 ... Guide shell support base, 23.24 ... Connecting rod, 29 ... … Hook engaging hole, 30 …… Hook engaging block, 36 …… Crane, 40 …… Anchor burying hole, 42 …… Slope.

Claims (9)

[Claims] 1. A front end of a guide shell provided with means for supporting a rock drill in a front-rear direction and driving means for driving the rock drill in its moving direction, on a slope. A clamping device for clamping the concrete frame is provided, and the guide shell is provided with suspension support means for suspending and supporting the guide shell. Rock drill support equipment. 2. A suspension supporting means for the guide shell is mounted below the guide shell, and a support base for the guide shell is provided at four corners of the support base and front and rear ends thereof are respectively connected to the support base. A pair of connecting rods and a hook engaging block in which the upper ends of the two pairs of connecting rods are connected to each other. The hook engaging block is formed with a hook engaging hole of a crane. Claim 1
A rock drill support device for slope drilling according to. 3. A rock drill support device for slope drilling according to claim 1, wherein the suspension support means of the guide shell is capable of adjusting the inclination angle of the guide shell. 4. At least one of the front and rear connecting rods of the front and rear connecting rods constituting the suspension supporting means of the guide shell is a telescopic rod. The rod has a pin hole for adjusting the length of the rod, and when the pin is inserted into an arbitrary pin hole, the length of the rod is adjusted. A rock drill support device for drilling slopes according to claim 2. 5. The connecting means for connecting the guide shell of at least one of the front and rear connecting rods of the connecting rods for each pair of front and rear constituting the suspension supporting means of the guide shell, is attached to the guide shell. The rock drill support device according to claim 2, wherein a position of the rock drill is adjustable in a front-rear direction. 6. The clamp device comprises a base plate fixed to a front end portion of a guide shell, a first clamp member attached to one side of the base plate, and movable back and forth with respect to the first clamp member. 2. A second clamp member disposed on the base plate, wherein the second clamp member is attached to the tip of a piston rod of a fluid cylinder attached to the other side of the substrate. A rock drill support device for slope drilling according to. 7. The pair of clamp members forming the contact surface of the clamp device with respect to the concrete frame are each rotatable about one axis in the clamp direction. Support equipment for rock drills for drilling slopes. 8. The slope drilling hole according to claim 6, wherein the first clamp member and the fluid cylinder attached to the substrate of the clamp device are detachable from the substrate. Rock drill support equipment. 9. A front face of a portion to be drilled on a slope where a concrete frame is preliminarily constructed by hoisting a supporting device of a rock drilling machine equipped with a clamp device at a front end portion of a guide shell using a crane. , The rock drill supported by the support device is positioned, and then the clamp device is used to fix the front end side of the guide shell to the concrete frame, and the rock drilling rod of the rock drill is used as the slope. On the other hand, a method of boring a slope, characterized in that a rock drill is operated to make a hole in the slope in a desired posture.