SU964171A1

SU964171A1 - Mine roof bolting

Info

Publication number: SU964171A1
Application number: SU802905039A
Authority: SU
Inventors: Павел Иванович Сенцов; Виктор Николаевич Уваров
Original assignee: Восточный научно-исследовательский горнорудный институт
Priority date: 1980-04-04
Filing date: 1980-04-04
Publication date: 1982-10-07

Description

(5) АНКЕРНАЯ КРЕПЬ(5) ANCHOR STRAP

1one

Изобретение относитс к анкерной крепи горных выработок, а также может быть использовано при строительстве дорог.The invention relates to anchor lining of mine workings, and can also be used in the construction of roads.

Известна анкерна крепь, включающа трос, концы которого заведены в замковое устройство, выполненное в виде поршней, двигаки ихс в шпурах и нат гивающих трос при нагнетании в загерметизированные полости шпуров жидкого в жущего материала 1 .Known anchor lining, including a cable, the ends of which are inserted into a locking device made in the form of pistons, moving them in bore-holes and pulling the cable when it is pumped into the sealed cavities of boreholes of a liquid holding material 1.

Установка такой крепи отличаетс сложностью и трудоемкостью. Кроме того, сила нат жени троса невелика.Installing such a support is complex and time consuming. In addition, the tension force of the cable is small.

Известна анкерна крепь, включающа трос, замковый конец которого закреплен в шпуре, а хвостовик в нат жном устройстве 2.Known anchor lining, including a cable, the locking end of which is fixed in the hole, and the shank in the tension device 2.

Однако установка такой крепи св зана с ручными операци ми нат жени троса, что увеличивает трудоемкость работ, и усили нат жени невелики.However, the installation of such a support is associated with manual tensioning of the cable, which increases the labor intensity of the work, and the tension forces are small.

Цель изобретени - снижение трудоемкости установки и повышение эффективности работы крепи путем нат жени троса с помощью энергииThe purpose of the invention is to reduce the complexity of the installation and increase the efficiency of the lining by tensioning the cable with the help of energy.

J взрыва.J bang.

Поставленна цель достигаетс тем, что нат жное устройство выполнено в виде трубки с размещенным внутри зар дом взрывчатого вещест10 ва, а хвостовик - из петли троса, котора намотана на трубу.This goal is achieved by the fact that the tensioning device is made in the form of a tube with a charge of an explosive substance placed inside, and the shank is made of a loop of a cable that is wound on a pipe.

На чертеже изображена крепь. Крепь содержит трос 1, концы которого заделаны в замк(жой частиThe drawing shows the lining. The support contains a cable 1, the ends of which are embedded in the lock (the left part

15 одного или двух шпуров с помощью бетона или распорных элементов (не показанм), а средн часть в виде петли намоната несколькими витками на трубу 2, и рычаг 3. В трубу15 one or two bore-holes with concrete or spacers (not shown), and the middle part in the form of a monomer loop with several turns on pipe 2, and lever 3. Into pipe

20 2 помещемл при установке крепи резиновые втулки 1 с детонирую1чим шпуром 5.20 2 placed when installing the support rubber bushings 1 with a detonating hole 5.

Claims

The support is installed as follows. After securing the ends of the cable 1 in the lock part of two bore-holes using concrete embedment or expansion elements, the cable loop is pulled out of the boreholes and wound with several turns on the pipe 2 and twist the turns of the cable with the lever 3 End The lever is secured. A rubber sleeve C with a detonating hole 5 is placed in pipe 2. The hole is detonated using a detonator capsule. Installation of a different type of construction is characterized in that the end of the cable 1 is fixed in one hole. from the hole in the form of a loop from which the turns are formed on the tube 2. The turns are pulled away by rotating the tube 2 with the help of the lever 3 in the cross-sectional plane of the hole and attaching the free end of the lever 3 to the tube of the adjacent set. After the explosion of the detonating bore-hole 5, the pipes 2 are inflated and the length of the pipe in the coils increases by 1) c) where 1) and I) c are the final and initial diameter of the pipes; n is the number of turns,. The total number of turns on the jiByx pipes of the Creri kit, the structure of which is shown, p.2.5; 3.75; 5.0 The number of turns in the lining of the second option, 5; 2.5; 3.5. A / ifl of these values and at 1) mm and 1) 5 mm, the cable outside the turns is reduced in length by 7; 63 mm and, 31, mm. It provides significant value. The proper tension of the cable branches is up to the breaking point. / 1p reduce friction 1 .4 between the coils and the surface of the pipes when the charge explodes, the rubbing surfaces are coated with oil. It is advisable to subsequently concreting stressed reinforcement. In this case, the concrete lining of the hardened surface acquires the properties of string-concrete with high mechanical strength. The use of charge energy during the installation of the support sharply reduces the laboriousness of fastening and at the same time provides high forces of flexible reinforcement. The support may also be effective in road construction for reinforcing slopes. Claims Anchoring, including a cable, the locking end of which is fixed in the hole, and the shank - in a tensioning device, in order to reduce the labor intensity of the installation and increase the efficiency of the support by tensioning the cable with the help of explosive energy, The tension device is made in the form of a pipe with an explosive charge placed inside, and the shank is made of a cable loop that is wound on the pipe. Sources of information taken into account in the examination 1. US patent number i 158919, ce. E 21 F 21/00, published. 1979

2. Semevsky V.N. and others. Shankov support. M., Nedra, 19b5, p. ST (prototype). : OvU // vV // chy / l y / x.v / V / U // U // cy / u / u, y / // yo / 6W