SU1305368A1 - Method and apparatus for setting a roof bolt - Google Patents

Abstract

Distillation refers to a mining case, namely, to methods and means of anchoring in clearing and preparatory workings when strengthening layered rocks. The aim of the invention is to reduce the cost and improve the quality of fixing the anchor (A) in the hole. The method is carried out using a device including an anchor head (L: o ate SL2 05 30

Description

KU, injection pipe (IG), consisting of the upper 13 and lower 16 parts, coaxially mounted on the guides with the possibility of independent movement along the common axis and interacting with each other along the connector surface. At the same time, the IT has a tapered shape and is connected to the node feeding components of the fixative solution. The lines are connected to the upper part 15, and the compressed air line is connected to the lower part 16. At the beginning of the drill is drawn and entered into it

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one

The invention relates to mining and technology, in particular, to methods and means of anchoring in clearing and preparatory workings for strengthening layered rocks.

The purpose of the invention is to reduce the cost and increase the quality of securing the anchor in the hole.

Fig. 1 shows an anchoring head, front view; Fig 2 is the same, top view; Fig. 3 shows a carriage for inserting a reinforcing rod and anchoring components,. side view; FIG. 4 is a wiring diagram for the device shown in FIG. 3; Figures 5 through 9 show the flowcharts for sequentially performing operations for inserting anchor and fixing components into the hole.

The anchor installation device consists of an anchoring head 1 mounted on a self-propelled equipment handle (but shown). The anchor head 1 includes a drilling carriage 2 with a perforator 3, an injection carriage 4 with an injection pipe 5 and a store of 6 anchors mounted on a common axis 7. A mounting bracket 8 for a store 6 of anchors is installed, a jack 9 and levers 10 are installed stop 11.

The injection carriage 4 includes an endless chain 12 with a drive 13 and guides 14 on which an injection tube 5 is installed, consisting

1305368

the upper part 15 is IT and A. A fixing solution is poured in portions, the first portion of which is equal to the difference in the volumes of the hole and IT. The cost ratio of the components in the mains is 1: 1. As the hole is filled, IT and one thing are removed; temporarily. vsod t And from pshura. Then the remaining volume of the solution is fed with the simultaneous introduction of A to the whole length. After curing the solution, m. a thrust washer was installed and A. A was manufactured. 2 sec. f-ly, 9 silt,

five

from the upper 15 and lower 16 parts, coaxially mounted on the direction of dih with the possibility of independent movement along a common axis and interacting with each other along the surface of the connector, having a conical shape. To interact with the chain 12, each part is provided with levers 17 and pneumatic cartridges 18..

The injection pipe 5 is pressed against the guides 14 of the lining 19. The top 15 of the pipe 5 is connected by lines 20 with reverse. By valves 21 to the working cylinders 22 of the assembly 23 for supplying the components of the solution, on which the drive cylinder 24 is also installed, the compressed air line 25 is connected to the lower part 16 of the pipe 5.

The anchor includes a reinforcing rod 26 and a closure plug 27. In the joint, the reinforcing rod 26 is monolithically fixed with fixing solution 28. On the outer surface of the closure plug 27 there are annular projections 29,

The method of installation of the anchor is carried out as follows.

The anchor head 1 is installed at the desired location so that the stop 1 1 touches the working surface. With the help of the carriage 2, the drill hole is at the required depth. The jack 9 rotates the injection carriage 4 at an angle of 30 ° and inserts the upper part 5 15 of the injection pipe 5 into the wire (figure 5).

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The levers 10 from the magazine 6 of the anchors feed the reinforcing rod 26 with the shut-off plug 27 until its axis coincides with the axis of the injection pipe. 15. At the same time, the reinforcing rod is introduced into the injection pipe 5 (Fig. 6) and the closure plug 27 seals it below the connection of the lines 20.

With simultaneous removal of the injection tube 5 and the reinforcing rod 26 from the hole, the first portion of the fixing solution 28 is injected into the hole, the volume of which is equal to the difference between the volumes of the hole and the injection pipe 5 (Fig.7); 1: 1. The solution, the passage through the annular cavity between the inner surface of the injection tube 5 and the reinforcing rod 26, is stirred, which is facilitated by the transverse projections on the surface of the latter. Thereafter, the supply of solutions by the working cylinders 22 is stopped, and compressed air is supplied to the lower part 16 of the injection pipe 5, which displaces the reinforcing rod 26 with the stop plug 27 and the second portion of the fixing solution 28 into the core. In this case, the reinforcing rod 26 is inserted into the hole of the fastening solution 28 faster than additional mixing is achieved, and the annular protrusions 29 clean the inner surface of the pipe 5.

The reinforcement bar is held and the solutions are prevented from escaping from the pinch by annular protrusions 29, which, when exiting the injection pipe 5, expand in the hole and seal it. If necessary, after curing the fixing solution, a support bar (lie noKaaafia) can be installed and the anchor tensioned.

Claims (2)

1. A method of installing an anchor, including drilling a hole, inserting an injection pipe and an anchor into it, feeding a fixing solution and removing an injection pipe as the hole is filled, which is so as to reduce the cost and quality of anchor anchorage in the hole, the fixing solution is fed into the hole portions, and the first portion of the fixing solution is fed in an amount equal to the difference between the volumes of the hole and the injection pipe, while simultaneously removing  The injection tube ejects the anchor from the bore-hole, then the remaining volume of the fixing solution is fed with the simultaneous introduction of the anchor over its entire length. 2. A device for installing pa, which includes an injection pipe connected by pipes to the node for feeding the components of the fixing solution, and guides, characterized in that the injection pipe is made from the upper and lower parts that are coaxially mounted in a direction with the possibility of independent movement along a common the axes and interconnections along the surface of the connector, which has a conical shape, with this line connecting the injection pipe with the component supplying component of the fixing solution, are connected to its upper part, and the compressed air line is connected to the lower part, 1 FIG. 2 FIG. 3 22 of FIG. FIG. five FIG. 6 FIG. 7 Editor D.Geershi Compiled by B.Usan-Podgornov Tehred A. Kravchuk Order 1407/31 Circulation 455 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab ,, d.4 / 5 ““ W “to V - G - I - K“ - “- -. - "" -"""- " -"BUT " Production and printing company, Uzhgorod, Projecto st., 4 Fug.Z Proofreader L. Patay