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Tunneling operation simple emergent life-saving connection device and mounting method thereof

A technology of air ducts and rubber, which is applied in mine/tunnel ventilation, safety devices, mining devices, etc., and can solve problems such as time-consuming and difficult to grasp the location

Inactive Publication Date: 2011-03-16
CHINA RAILWAY 21TH BUREAU GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in underground engineering operations, when a collapse accident occurs, the first thing to consider is to drive the air duct to the work surface or the trapped area. Although this method of driving or installing the air duct afterwards is very practical, it often happens It takes a lot of time in the event of an accident, and the location is not easy to grasp

Method used

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  • Tunneling operation simple emergent life-saving connection device and mounting method thereof
  • Tunneling operation simple emergent life-saving connection device and mounting method thereof
  • Tunneling operation simple emergent life-saving connection device and mounting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1: as figure 1 , 2 , 3, 4, 5, and 6, in the figure, 1-tunnel excavation face; 2-rubber air duct; 3-steel pipe; 4-collapsed body; Rubber air duct, 8-telephone line, 9-transition joint, 10-flange, 11-bolt, 12-utility knife, 13-emergency toolbox, 14-hand pliers, 15-telephone and wiring, 16-sandbag , 17-insulating tape, 18-screwdriver, 19-wrench, 20-axe, 21-flashlight.

[0043] A rubber air pipe 2 is paved near the tunnel excavation operation face 1 at the same time when the tunnel or roadway is excavated. Installation position of the rubber air duct 2: in order to prevent the operation vehicle from being crushed, it is placed in the left or right lower corner of the tunnel excavation operation surface 1 or the roadway operation section. In order to increase the compressive strength of the rubber air duct 2, a steel pipe 3 can be added outside the rubber air duct 2. The two ends of the rubber air duct 2 are equipped with an emergency tool box 6 .

[0044] Th...

Embodiment 2

[0051] A method for installing a simple emergency lifesaving contact device for tunnel operations, comprising the following steps:

[0052] Lay a tunnel rubber air duct near the working surface during tunnel or roadway excavation;

[0053] Installation position: placed in the left or right lower corner of the tunnel or roadway operation section, and covered with shallow soil;

[0054] Coat the steel pipe outside the tunnel rubber air duct;

[0055] Put a telephone line inside the rubber duct, and make a clear mark. The telephone line is 2-3 meters longer than both ends of the rubber duct, and the length of each meter is marked on the outside of the rubber duct; the length of the rubber duct is not less than The distance between the two linings;

[0056] The rubber air duct is dragged forward along with the palm;

[0057] The steel pipe is a section of 1-2 meters, and the two sections of steel pipe are connected by flanges, and the two butt flanges are sandwiched by a 5-15cm...

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Abstract

The invention discloses a method for mounting a simple device for emergency rescue during tunnel operation. The method comprises the following steps: laying a tunnel rubber air duct close to an operation surface when digging a tunnel or a roadway at a left or right corner of the tunnel or roadway operation surface and covering the tunnel rubber air duct by earth; sleeving a steel tube outside thetunnel rubber air duct; inserting a telephone line in the rubber air duct and drawing the rubber air duct forward with a face; connecting each two steel pipes with a flange and covering a joint with a sand bag; and corresponding a transitional connector with a flange of an intake steel pipe used in tunnel operation. Emergency tool boxes are placed at two ends and in the middle of the steel tubes at 30 to 40 meter intervals respectively. The method has the advantages that when collapse occurs, trapped persons can find the emergency tool boxes nearby and break open a simple lock, take out tools, open a movable connecter of the steel tubes, cut the air duct, connect the telephone wire and turn on hand torch. The outside rescue workers can immediately force air into the air duct, supply liquid food to the trapped area and connect emergency telephone and wait for follow-up rescue.

Description

technical field [0001] The invention relates to a simple emergency lifesaving contact device for tunnel operation and a tunnel rubber air pipe installation method, belonging to the technical field of underground engineering construction. Background technique [0002] At present, in underground engineering operations, when a collapse accident occurs, the first thing to consider is to drive the air duct to the work surface or the trapped area. Although this method of driving or installing the air duct afterwards is very practical, it often happens But it takes a lot of time during the accident, and the location is not easy to grasp. Contents of the invention [0003] The invention provides a tunnel rubber air duct and an installation method. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A method for installing a simple emergency lifesaving contact device for tunnel operations, comprising the following steps: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F11/00E21F1/04E21F17/18
Inventor 柴顺林李宁孟广顺高善一李寿福赵侃
Owner CHINA RAILWAY 21TH BUREAU GROUP
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