CN2182880Y

CN2182880Y - Means for supporting and keeping gallery

Info

Publication number: CN2182880Y
Application number: CN 94207059
Authority: CN
Inventors: 季绍杰; 张丙雪; 李伟林
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-21
Filing date: 1994-03-21
Publication date: 1994-11-16
Anticipated expiration: 2004-03-21

Abstract

The utility model relates to a support and fall-prevention device for tunnels for underground mining. The utility model solves the problem that the connection of metal sheds for supporting in the tunnel is infirm, and thus the tunnel is collapsed and fallen. The utility model is characterized in that connection parts of supporting legs of the metal shed and both ends of a top beam are provided with holes which are connected with screw bolts through clamp plates; reinforcing ribs on the supporting legs (1) are welded with upper hooks (7); reinforcing ribs on the supporting legs (2) are welded with lower hooks (8); the adjacent supporting legs on the same side of the metal shed supported in the tunnel are connected with a balance tension rod through the hooks; the balance tension rod forms an included angle beta with the trend of the waist line of the tunnel; transverse supporting beams are inlaid between the supporting legs and between the top beams.

Description

Means for supporting and keeping gallery

The utility model is a kind of roadway support tilting prevention device that is used for underground mining.

At present, be used for the underworkings of underground mining, the supporting facility of colliery underworkings particularly, according to its length of service and coal mining geological condition, dividing has multiple support pattern.For example, big lane service year limit for length is opened up in the down-hole, generally adopts bolt-spary supports; The supporting of stope drift active workings is generally adopted the supporting of metal arch canopy, bolt support, the trapezoidal canopy supporting of timber or the trapezoidal canopy supporting of metal according to mining way, geological condition.The supporting of said metal arch canopy is at the two ends of a metal arch back timber, and each supports a metal upright post and constitutes roadway arched roof suspension device as supporting leg; The trapezoidal canopy supporting of said metal is at the two ends of a back timber, and each supports a metallic support leg and constitutes trapezoidal canopy suspension device.Arched roof and trapezoidal canopy general designation metal canopy.

Be located at the overlap joint between the metal canopy the tunnel in, be help with coal by the backboard of insert between back timber and the top board and supporting leg between the backboard of insert, help overlap joint under the pressure effect at back and coal.Because the tunnel is subjected to mining influence in architectonic variation and driving and the coal mining process, when running into the tunnel and press, usually push over the metal canopy, cause the tunnel roof fall accident that caves in.

The purpose of this utility model, not firm for the connection between the metal canopy that solves supporting in the above-mentioned said tunnel exactly, the tunnel be subjected to that geological structure changes and driving and coal mining process in mining influence after, push over the metal canopy easily, cause the cave in problem of roof fall accident of tunnel, designed a kind of roadway support tilting prevention device.

The utility model is finished by following form: the roadway support tilting prevention device, including the supporting leg and the back timber that constitute the metal canopy forms, the junction that it is characterized in that the supporting leg (1) made with two i iron and back timber (3) two ends, be provided with by clamping plate (4), the hole that clamping plate (5) are connected with bolt (6), be welded with hook (7) on the reinforcing rib of supporting leg (1), be welded with lower draw-bar (8) on the reinforcing rib of supporting leg (2), between the supporting leg (1) and supporting leg (2) that the same side of the metal canopy of supporting in the tunnel is adjacent, be connected with balance stayed mast (9) by last hook (7) and lower draw-bar (8), balance stayed mast (9) moves towards to constitute the β angle with the stringcourse in tunnel, between supporting leg and the supporting leg, be installed with bolster (10) in the I-shaped steel tank between back timber and the back timber.

Said balance stayed mast (9), constitute by two metal rods and regulating block (11), one end of two metal rods respectively is provided with and links up with the shackle that (7) or hook (8) are connected, the other end of two metal rods respectively is provided with the opposite spiral shell button of the hand of spiral, and regulating block (11) two ends are provided with the screw that the hand of spiral with the spiral shell button of two metal rods is complementary.Both ends in back timber (3) are provided with the link stopper (12) that can prevent supporting leg and topple over to the tunnel.

The enforcement of this roadway support tilting prevention device has following advantage: supporting leg with the junction at h beam cap (3) two ends, put on clamping plate (4), (5) with bolt (6), back timber and supporting leg are fastened as one, in the time of can preventing that Tunnel Pressure from increasing, make the dislocation of back timber and supporting leg; Adopt balance stayed mast (9) to be connected between the adjacent supporting leg (1) in the same side in tunnel and the supporting leg (2), balance stayed mast (9) is the β angle with the stringcourse that moves towards in tunnel, make supporting leg form trussed construction, can prevent that the tunnel from tilting or tilting to same direction to opposing direction with other adjacent supporting leg; Be installed with bolster (10) in the I-shaped steel tank of back timber and supporting leg, can prevent that the tunnel from tilting in opposite directions direction with other supporting leg.When the metal canopy is subjected to thrust in the tunnel, the suspension device that metal canopy and bolster (10) and balance stayed mast (9) are formed, can guarantee that any adjacent metal canopy more than three and three bears the thrust of any direction, has good stable.Effectively prevent and reduce the tunnel roof fall accident that caves in.Reached purpose of design.

Be described below in conjunction with the accompanying drawings:

Fig. 1 is arranged on the structural representation of the tilting prevention device on the trapezoidal canopy of metal;

Fig. 2 is the structural representation that connects between the trapezoidal canopy of same other adjacent metal of supporting in the tunnel;

Be arranged on the roadway support tilting prevention device on the metal canopy, can on the trapezoidal canopy of metal, implement; Also can on the metal arch canopy, implement.The bolster (10) of insert can be the stull of wood materials in the I-shaped steel tank between the supporting leg and supporting leg of metal canopy, between back timber and the back timber; It also can be the stull of metal material.Wherein the stull of wood materials is applicable to that the tunnel is short service time, the tunnel that mine pressure is little; The stull of metal material is applicable to tunnel service year limit for length, the tunnel that mine pressure is bigger.The manufactured materials that comprises the metal canopy of arched roof, trapezoidal canopy can also be other metal material beyond the i iron, and being connected between its bolster (10) and the back timber can connect by bolt.

The enforcement of roadway support tilting prevention device on the metal canopy has guaranteed to comprise that the face of coal-face is fresh distinguished and admirable unimpeded, has improved the operating environment in tunnel; To improving the roadway support management and guaranteeing mine safety production, has positive effect.

Claims

1, a kind of roadway support tilting prevention device, including the supporting leg and the back timber that constitute the metal canopy forms, the junction that it is characterized in that the supporting leg (1) made with two i iron and back timber (3) two ends, be provided with by clamping plate (4), the hole that clamping plate (5) are connected with bolt (6), be welded with hook (7) on the reinforcing rib of supporting leg (1), be welded with lower draw-bar (8) on the reinforcing rib of supporting leg (2), between the supporting leg (1) and supporting leg (2) that the same side of the metal canopy of supporting in the tunnel is adjacent, be connected with balance stayed mast (9) by last hook (7) and lower draw-bar (8), balance stayed mast (9) moves towards to constitute the β angle with the stringcourse in tunnel, between supporting leg and the supporting leg, be installed with bolster (10) in the I-shaped steel tank between crossbeam and the crossbeam.

2, according to the said roadway support tilting prevention device of claim 1, it is characterized in that said balance stayed mast (9), constitute by two metal rods and regulating block (11), one end of two metal rods respectively is provided with and links up with the shackle that (7) or hook (8) are connected, the other end of two metal rods respectively is provided with the opposite spiral shell button of the hand of spiral, and regulating block (11) two ends are provided with the screw that the hand of spiral with the spiral shell button of two metal rods is complementary.