CN202348345U - Automatic alarm system for monitoring tunnel surrounding rocks - Google Patents
Automatic alarm system for monitoring tunnel surrounding rocks Download PDFInfo
- Publication number
- CN202348345U CN202348345U CN2011205292703U CN201120529270U CN202348345U CN 202348345 U CN202348345 U CN 202348345U CN 2011205292703 U CN2011205292703 U CN 2011205292703U CN 201120529270 U CN201120529270 U CN 201120529270U CN 202348345 U CN202348345 U CN 202348345U
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- alarm
- power supply
- tunnel surrounding
- monitoring
- alarm system
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Abstract
The utility model discloses an automatic alarm system for monitoring tunnel surrounding rocks and relates to the field of monitoring of the tunnel surrounding rocks. The automatic alarm system for monitoring tunnel surrounding rocks comprises a deformation measuring instrument, a displacement induction touch switch, an alarm signal circuit, an alarm and a safety power supply, wherein the displacement induction touch switch is fixed on the deformation measuring instrument; contacts of the switch are connected with a positive pole of the safety power supply and a positive pole of the alarm through the alarm signal circuit respectively; and a negative pole of the safety power supply is connected with a negative pole of the alarm. The system timely monitors, and a safety accident can be effectively avoided; the system is rapidly mounted, is convenient to use and can automatically alarm and guide operating personnel to evacuate at the highest speed when dangers exist; and the system can be suitable for various surrounding rocks, and the displacement induction touch switch can be adjusted according to different surrounding rock levels on the basis of specifications.
Description
Technical field
The utility model relates to tunnel surrounding monitoring field, is specifically related to a kind of tunnel surrounding monitoring automatic alarm system.
Background technology
In the tunnel excavation work progress; Along with the redistribution of surrouding rock stress, country rock can produce distortion to tunnel internal after the excavation off-load, according to New Austrian Tunneling Method construction principle; In work progress, need the country rock behind the excavation is carried out monitoring measurement; Whether and it is reasonable to estimate the preliminary bracing parameter according to monitored data, and the prevention country rock caves in, and avoids security incident.
The country rock monitoring measurement comprises that vault sinks and the country rock convergence, and traditional monitoring method adopts level gauge periodic measurement vault to sink, and adopts the convergence of steel ruler convergence instrument monitoring country rock.So each monitoring need spend more manpower, and monitoring efficient is low, in the measuring process all the other working procedures in the tunnel is disturbed greatly, influences construction speed.And traditional monitoring method receives country rock rank and country rock self-deformation speed to influence very big; If surrouding rock deformation is very fast; Personal monitoring's number of times is corresponding to be increased, and is difficult to accomplish in time, if monitor untimely for weak surrounding rock; Be difficult to expect the danger of caving in, cause great potential safety hazard for the construction operation personnel.
In order not influence the tunnel normal construction, and can monitor the surrouding rock deformation situation in real time, running into dangerous situation can very first time guiding construction operating personnel evacuate, and avoids security incident, is necessary to develop a kind of simple and direct light automatic monitoring warning system that is applicable to various country rocks.
Summary of the invention
The purpose of the utility model provides a kind of tunnel surrounding monitoring automatic alarm system; To reach distortion situation after the supporting of real-time monitoring tunnel excavation; And when distortion surpasses a threshold value, in time report to the police automatically, in time the guiding construction operating personnel evacuates, and avoids the purpose of security incident.
The utility model is realized through following technical scheme:
Tunnel surrounding monitoring automatic alarm system; Comprise deformeter, displacement induction touch switch, circuit, alarm, safety power supply; Wherein displacement induction touch switch is fixed on the deformeter; The contact of switch is used the positive pole of circuit attachment security power supply and the positive pole of alarm respectively, and the negative pole of safety power supply connects the negative pole of alarm.
Further, described deformeter replaces with the steel ruler convergence instrument.
Described safety power supply is the 12V battery that fire-fighting is used.
Described alarm is an audible-visual annunciator.
Described circuit is an insulated cable.
Bury the country rock monitoring point according to code requirement underground at positions such as vault, springing line and abutment walls behind the tunnel excavation, treat that preliminary bracing is accomplished after, deformeter is installed; One end is fixed on vault; The other end is fixed on abutment wall, then touch switch is responded in displacement and is fixed on the deformeter, the positive pole of the contact difference attachment security power supply of switch and the positive pole of audible-visual annunciator; When rock deformation reaches predefined scale; Touch switch connection circuit, audible-visual annunciator begin to report to the police, and instruct that the construction operation personnel withdraw rapidly in the tunnel.
The utility model compared with prior art has the following advantages:
(1) practices thrift manpower, avoid repeatedly repeating monitoring;
(2) monitoring in time can effectively be avoided security incident;
(3) quick for installation, easy to use, can realize reporting to the police automatically, face a danger and realize that prestissimo instructs the operating personnel to evacuate;
(4) can be applicable to various country rocks, displacement induction touch switch can be regulated according to regulation and stipulation according to the different surrounding rock rank;
(5) equipment is light, the price material benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the scheme of installation in V level country rock three bench excavations of the utility model;
Among the figure: 1-deformeter (or steel ruler convergence instrument), 2-displacement induction touch switch, 3-circuit, 4-alarm, 5-safety power supply, 6-vault country rock monitoring point, 7-abutment wall country rock monitoring point.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Tunnel surrounding monitoring automatic alarm system as shown in Figure 1; Comprise deformeter or steel ruler convergence instrument 1, displacement induction touch switch 2, circuit 3, alarm 4, safety power supply 5; Wherein displacement induction touch switch 2 is fixed on deformeter or the steel ruler convergence instrument 1; The contact of switch is used the positive pole of circuit 3 attachment security power supplys 5 and the positive pole of alarm 4 respectively, and the negative pole of safety power supply 5 connects the negative pole of alarm 4.
The 12V battery used for fire-fighting of safety power supply 5 wherein, alarm 4 is an audible-visual annunciator, circuit 3 is an insulated cable.
After treating that preliminary bracing is accomplished, deformeter or steel ruler convergence instrument 1 are installed, an end is fixed on vault country rock monitoring point 6, and the other end is fixed on abutment wall country rock monitoring point 7.When rock deformation reaches predefined scale, touch switch 2 connection circuits, audible-visual annunciator 4 begin to report to the police, and sound the alarm and the warning lamp that glimmers, and instruct that the construction operation personnel withdraw rapidly in the tunnel.
When the V level surrounding rock tunnel adopts the construction of three bench excavations; Scheme of installation is as shown in Figure 2; The two ends of deformeter or steel ruler convergence instrument 1 also can be separately fixed at the left springing line and the right springing line place in tunnel, can accurately monitor the country rock convergence like this, also can not influence the normal construction operation.
Claims (5)
1. a tunnel surrounding is monitored automatic alarm system; It is characterized in that comprising deformeter (1), displacement induction touch switch (2), circuit (3), alarm (4), safety power supply (5); Wherein said displacement induction touch switch (2) is fixed on the deformeter (1); The contact of switch is used the positive pole of circuit (3) attachment security power supply (5) and the positive pole of alarm (4) respectively, and the negative pole of safety power supply (5) connects the negative pole of alarm (4).
2. tunnel surrounding monitoring automatic alarm system according to claim 1 is characterized in that described deformeter (1) is replaced by the steel ruler convergence instrument.
3. tunnel surrounding monitoring automatic alarm system according to claim 1 and 2 is characterized in that the 12V battery that described safety power supply (5) is used for fire-fighting.
4. tunnel surrounding monitoring automatic alarm system according to claim 1 and 2 is characterized in that described alarm (4) is an audible-visual annunciator.
5. tunnel surrounding monitoring automatic alarm system according to claim 1 and 2 is characterized in that described circuit (3) is an insulated cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205292703U CN202348345U (en) | 2011-12-17 | 2011-12-17 | Automatic alarm system for monitoring tunnel surrounding rocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205292703U CN202348345U (en) | 2011-12-17 | 2011-12-17 | Automatic alarm system for monitoring tunnel surrounding rocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348345U true CN202348345U (en) | 2012-07-25 |
Family
ID=46537354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205292703U Expired - Lifetime CN202348345U (en) | 2011-12-17 | 2011-12-17 | Automatic alarm system for monitoring tunnel surrounding rocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533520A (en) * | 2014-12-01 | 2015-04-22 | 长沙理工大学 | Tunnel arch crown settlement and peripheral convergence monitoring method |
| CN108087031A (en) * | 2017-11-23 | 2018-05-29 | 曾强 | A kind of monitoring warning device for tunnel |
-
2011
- 2011-12-17 CN CN2011205292703U patent/CN202348345U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533520A (en) * | 2014-12-01 | 2015-04-22 | 长沙理工大学 | Tunnel arch crown settlement and peripheral convergence monitoring method |
| CN108087031A (en) * | 2017-11-23 | 2018-05-29 | 曾强 | A kind of monitoring warning device for tunnel |
| CN108087031B (en) * | 2017-11-23 | 2019-04-02 | 友谊国际工程咨询有限公司 | A kind of monitoring warning device for tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |