专利摘要:
1444068 Blasting and reinforcing large cavities in rock T J HALLENIUS and K I SAGEFORS 11 July [30 July 1973 16 May 1974] 30737/74 Heading E1F A method of blasting out and reinforcing rack cavities comprises the steps of cutting out in the rock outside the side walls of the required cavity arcuate tunnels 12, 13 extending between the bottom 18 and top levels of said side walls and filling said tunnels with a reinforcing material to form in said tunnels arcuate beams which are wholly embedded in the rock, said steps of cutting out the tunnels and filling them with reinforcing material being carried out before the rock cavity is completely excavated. The material may be concrete, preferably reinforced concrete. The tunnels will usually be arranged in pairs, the tunnels of such a pair being located opposite each other and outside opposite side walls of the cavity. The tunnels 12, 13 may be continued as at 6, 19 above the roof and below the floor in curved or inclined form so that the cavity may be encircled by reinforcing beams. Spaced horizontal beams may also be similarly formed about the rock zone surrounding the cavity.
公开号:SU912053A3
申请号:SU742049661
申请日:1974-07-30
公开日:1982-03-07
发明作者:Иеркер Халлениус Торе;Ивар Сагефорс Карл
申请人:за вители;
IPC主号:
专利说明:

The invention relates to underground construction and can be used in the construction of workings of large cross-section.
There is a known method of constructing underground g workings of large cross section, including preliminary driving along the periphery of a workout of a system that strengthens the adit massif with filling them with bearing material, for example, to SP concrete.
The disadvantage of this method is the high consumption of materials for the lining of the structure, which should fully absorb all the rock pressure.
There is also known a method of constructing underground mining of large cross-section, including the preliminary strengthening of the rock mass beyond its contour 20, the development of the rock and the construction of a constant lining [2],
The disadvantage of this method is the lack of reliability of improving the properties of the array. 25
The purpose of the invention is to increase the stability of the array and the reliability of the fastening workings.
This goal is achieved in that the preliminary strengthening of the rock mass is carried out by sinking around the design section of the future development of a system of closed tunnels located in a vertical plane at a certain distance from it, and filling them with bearing material, such as concrete.
In this case, it is advisable to go through additional horizontal enclosed tunnels intersecting the vertical ones and forming a whip-like system with them.
In addition, the lining of the development of a large cross-section can be connected with the supporting material of the adits with auxiliary adits or anchors.
The drawing shows an underground. development of a large section, cross section.
912053 4
Prior to the production facilities 1 g of large cross section around it at a certain distance from the circuit design system 2 are closed tunnels 3 "arranged in a vertical plane, and fill them with the carrier material, such as concrete. To further increase stability, horizontal closed tunnels 4 can be traversed that intersect vertical ones and form a cage system with them.
Then, in a known manner, the development of a large cross section is constructed and its lining is constructed, which can be connected to previously passed closed adits using auxiliary adits 5. filled with supporting material, or anchors.
Thus, according to the proposed method, the development of a large cross section is constructed in a pre-fixed array, and its lining can be facilitated, given that the main load from the rock pressure is perceived by the bearing material & closed adits.
权利要求:
Claims (2)
[1]
Before construction of a large section 1 begins around it, at a certain distance from the project contour 2, the system of closed galleries 3 located in a vertical plane passes through, and is filled with a supporting material, for example, concrete. To further increase stability, horizontal closed galleries, k, intersecting the vertical and forming a cage system with them, can be traversed. Then, the production of a large cross section is constructed by a known method and its lining is erected, which can be connected to previously closed galleries using auxiliary rod 5 filled with carrier material or anchors. Thus, according to the proposed method, the production of a large cross section is constructed in a pre-fixed array, and its lining can be facilitated given that the main load from the rock pressure is perceived by the carrier material 6 of the galleries. Claim 1. Method for constructing a large-scale underground mining, including pre-reinforcement of the rock mass outside its contour, 9 34 times cutting of the rock and erection of a permanent lining, characterized in that, in order to increase the stability of the massif and the reliability of fixing production, preliminary strengthening the rock mass is carried out by sinking around the design section of the future development of a system of closed tunnels located in a vertical plane of the scale and a distance of ying their carrier material, such as concrete. 2. The method according to claim 1, characterized in that, in addition, horizontal closed galleries pass, intersecting the vertical and forming together the cell-like system. 3. Method according to paragraphs. 1 and 2, in that the lining of the production of a large cross section is connected with the supporting material of the tunnels with auxiliary galleries, also filled with supporting material, or anchors. Sources of information taken into account during the examination 1. USSR author's certificate number, class, E 21 D 1/00, 1969.
[2]
2.Procudings North American Rapeid Excanion and Tunne conference, June 5-7. 1972, Chicago, vol. 1, c. 52, fig. 8 (prototype). Priority on the grounds: 07/30/73 - according to paragraph 1. 16.05-74 - according to paragraph 2 and 3.
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同族专利:
公开号 | 公开日
DE2434200B2|1977-09-15|
YU37009B|1984-08-31|
HK14377A|1977-04-01|
CH589781A5|1977-07-15|
NO132968B|1975-11-03|
IL45242D0|1974-10-22|
DE2434200C3|1978-05-03|
EG14472A|1984-03-31|
FI58387B|1980-09-30|
NO132968C|1976-02-11|
ES428693A1|1976-09-01|
JPS5117805B2|1976-06-04|
CS171193B2|1976-10-29|
ATA584074A|1977-09-15|
CA1008678A|1977-04-19|
IL45242A|1977-06-30|
JPS5071130A|1975-06-12|
NO742195L|1975-02-24|
DD115936A5|1975-10-20|
YU211374A|1982-02-25|
FI217274A|1975-01-31|
BR7406028D0|1975-05-06|
FI58387C|1981-01-12|
AR210244A1|1977-07-15|
DE2434200A1|1975-02-20|
US3996751A|1976-12-14|
PL93120B1|1977-05-30|
AT343169B|1978-05-10|
GB1444068A|1976-07-28|
FR2239561A1|1975-02-28|
FR2239561B1|1976-12-24|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
SE7310504A|SE375580B|1973-07-30|1973-07-30|
SE7406572A|SE385491B|1974-05-16|1974-05-16|METHOD FOR EXPLOSION AND REINFORCEMENT OF BERGRUM|
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