CN103195433A - Method for speedy drivage in large section coal road - Google Patents
Method for speedy drivage in large section coal road Download PDFInfo
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- CN103195433A CN103195433A CN2013100907175A CN201310090717A CN103195433A CN 103195433 A CN103195433 A CN 103195433A CN 2013100907175 A CN2013100907175 A CN 2013100907175A CN 201310090717 A CN201310090717 A CN 201310090717A CN 103195433 A CN103195433 A CN 103195433A
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Abstract
The embodiment of the invention discloses a method for speedy drivage in a large section coal road, relates to the technical field of drivage, and aims to realize the speedy drivage and provide reliable technical support for the security of construction at the same time. The method for speedy drivage in a large section coal road comprises the following steps: the coal road is subjected to a primary support instantly after the drivage; the drivage is carried on instantly after a monitoring device is mounted on a primary supported top board; the monitoring device is used for monitoring the sinkage volume variation of a road top board at the back part of a heading machine behind the heading machine; the monitoring device can send out a guard signal when monitoring the fact that the sinkage volume reaches the predetermined value; and the primary supported coal road behind the heading machine is timely subjected to a secondary support by additionally arranging anchor rods and/or anchor cables. The method is suitable for the safe and speedy drivage of a large section coal road.
Description
Technical field
The present invention relates to the tunnelling technical field, relate in particular to the method for big section coal road speedy drivage.
Background technology
One of principal element that restricts most of high-yield and high-efficiency mines is the driving in tunnel.Supporting is longer than far away the excavation operation time required circulation timei in the coal road driving.
In order to realize speedy drivage, in the prior art supporting first earlier, the follow-up operating type that carries out secondary supporting are adopted in the supporting in the coal road driving.This operating type can greatly improve driving speed to a certain extent.
In realizing process of the present invention, the inventor finds in the existing speedy drivage after supporting is finished first, when carry out secondary supporting and rely on workman's experience to be judged fully, tool bears the character of much blindness and is random, easily causes potential safety hazards such as roof collapse takes place in the speedy drivage process.
Summary of the invention
Technical problem to be solved by this invention provides the method for a kind of big section coal road speedy drivage, when realizing speedy drivage, can provide reliable technical guarantee for safety of construction.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
The method of a kind of big section coal road speedy drivage comprises:
Coal road is tunneled and carries out supporting first immediately;
After through the top board place of supporting first monitoring device being installed, meeting head on to continue driving;
Utilize the deflection of described monitoring device monitoring development machine rear portion back to change, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sends alarm signal;
According to described alarm signal, secondary supporting is in time carried out through the coal road of supporting first in the development machine rear portion.
Preferably, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sending alarm signal comprises: when the deflection that monitors development machine rear portion back when described monitoring device surpasses the 10-15% of safe deflection a, send alarm signal.
Alternatively, described safe deflection a obtains according to following formula: a=△ h* §
Wherein, a is safe deflection; △ h is the actual deflection of top board; § is the country rock classification coefficient, and span is 0-1.
Preferably, the method of described big section coal road speedy drivage also comprises step: the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, control device to development machine sends block signal, the control device of described development machine carries out locking according to described block signal with the start-up circuit of described development machine, forbids the startup of development machine.
Preferably, after secondary supporting is finished in the tunnel at development machine rear portion, remove described alarm signal; When described monitor signal was disengaged, described monitoring device sent unlocking signal to the control device of development machine, and the control device of described development machine carries out release according to described unlocking signal with the start-up circuit of described development machine, allowed the startup of development machine.
Preferably, along the direction of moving towards in tunnel, at the top board place through supporting first a plurality of monitoring devices are installed successively; When meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than another predetermined value, also send alarm signal; According to described alarm signal, the coal road through supporting is first in time carried out secondary supporting.
Preferably, describedly monitor distance and meet head on distance between the nearest monitoring device during greater than another predetermined value when meet head on farthest monitoring device of distance, also sending alarm signal comprises: when meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than 50 meters, also send alarm signal.
Preferably, described according to described alarm signal, the coal road through supporting is first in time carried out secondary supporting comprise: according to described alarm signal, the coal road through supporting is first in time carried out secondary supporting to the described monitoring device place that sends alarm signal.
In the method for big section coal road of the present invention speedy drivage, after being carried out supporting first earlier, the coal road behind the driving can begin new driving, can carry out the secondary supporting of coal road behind the development machine, increased the working space of supporting, improved supporting efficient, strengthen the parallel operations of " pick ", " propping up " operation, also improved the speed of driving relatively; After carrying out supporting first, the alarm signal that sends according to the deflection variation back of monitoring device monitoring top board in time carries out secondary supporting again, both avoided the blindness of secondary supporting time to influence the speed of driving in advance and because of the idle limited inefficiency that causes secondary supporting of operation, and avoided blindness because of the secondary supporting time to lag behind again and caused sky top overlong time to cause the generation of accidents such as roof fall or landslide.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the method embodiment of a kind of big section coal road of the present invention speedy drivage.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Should be clear and definite, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
Referring to shown in Figure 1, the embodiment of the invention provides the method for a kind of big section coal road speedy drivage, comprises step:
S1, coal road is tunneled and carries out supporting first immediately;
S2, after through the top board place of supporting first monitoring device being installed, meeting head on to continue driving;
S3, utilize the deflection of described monitoring device monitoring development machine rear portion back to change, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sends alarm signal; Wherein, described alarm signal can be voice signal and/or optical signal;
S4, according to described alarm signal, secondary supporting is carried out through the timely complement anchor pole of the coal road of supporting first and/or anchor cable in the development machine rear portion.
Big section coal road in the embodiment of the invention refers to that cross sectional area is greater than 20 square metres coal road.
The method embodiment of big section coal road of the present invention speedy drivage can begin new driving after the coal road behind the driving is carried out supporting first earlier, improved the speed of driving greatly; After carrying out supporting first, the alarm signal that sends according to the deflection variation back of monitoring device monitoring top board in time carries out secondary supporting again, both avoided the blindness of secondary supporting time to influence the speed of driving in advance and caused the inefficiency of secondary supporting because working space is limited, and avoided blindness because of the secondary supporting time to lag behind again and caused sky top overlong time to cause the generation of accidents such as roof fall or landslide.
In the method embodiment of aforementioned big section coal road speedy drivage, further, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sending alarm signal comprises: when described monitoring device monitors the deflection of development machine rear portion back above the 10-15% of safe deflection a,, send alarm signal at preferred 10% o'clock.
In the method embodiment of aforementioned big section coal road speedy drivage, alternatively, described safe deflection a obtains according to following formula: a=△ h* §.
Wherein, a is safe deflection; △ h is the actual deflection of top board; § is the country rock classification coefficient, and span is 0-1, specifically chooses with reference to table one.
Table one:
Country rock rank in the table one refers to the National Standard Technical code for shotcrete rock bolts shore " in the country rock classification.
Aforesaid safe deflection a also can be before carrying out formal excavation operation, according to the concrete geological structure at scene, records in advance in the mode of field trial.
Has the higher excavation operation that carries out when dangerous greatly for fear of changing at the deflection of top board, in the method embodiment of aforementioned big section coal road speedy drivage, preferably, the method of described big section coal road speedy drivage also comprises step: the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, control device to development machine sends block signal, the control device of described development machine carries out locking according to described block signal with the start-up circuit of described development machine, forbid the startup of development machine, and the supporting scope first at development machine rear portion carried out the secondary reinforce support immediately, make overall supporting effect reach designing requirement.Realize to avoid the normal startup of development machine to the automatic blocking of the start-up circuit of described development machine by described monitoring device, still can carry out excavation operation thereby can avoid dangerous when higher, for safety of construction provides reliable guarantee.
In the method embodiment of aforementioned big section coal road speedy drivage, after secondary supporting is finished in the tunnel at development machine rear portion, remove described alarm signal; When described monitor signal was disengaged, described monitoring device sent unlocking signal to the control device of development machine, and the control device of described development machine carries out release according to described unlocking signal with the start-up circuit of described development machine, allowed the startup of development machine.Operating personnel just can start development machine and carry out new excavation operation at this moment.
In the method embodiment of aforementioned big section coal road speedy drivage, along with constantly extending forward of coal road, along the direction of moving towards in tunnel, at the top board place through supporting first a plurality of monitoring devices are installed successively.Because the top board of some coal road is thicker and harder, its deflection changes little, may occur through the sky top of supporting first long but monitoring device do not send the bigger alarm signal of deflection distortion yet.In this case, and top board that cause happen suddenly long for fear of sky top such as strides at disaster, preferably, when meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than another predetermined value, also sends alarm signal; According to described alarm signal, the coal road through supporting is first in time carried out secondary supporting.
Wherein, describedly monitor distance and meet head on distance between the nearest monitoring device during greater than another predetermined value when meet head on farthest monitoring device of distance, also sending alarm signal comprises: when meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than 50 meters, also send alarm signal.Though can avoid the amount of crushing little but empty top is long and the top board that causes happening suddenly such as strides at disaster like this.
In the method embodiment of aforementioned big section coal road speedy drivage, described according to described alarm signal, coal road through supporting is first in time carried out secondary supporting to be comprised: according to described alarm signal, the coal road through supporting is first in time carried out secondary supporting to the described monitoring device place that sends alarm signal.
The method embodiment of the big section coal road of the present invention speedy drivage when realizing speedy drivage, can provide reliable technical guarantee for safety of construction, reduces construct especially blindness and the randomness of secondary supporting.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1. the method for big section coal road speedy drivage is characterized in that, comprising:
Coal road is tunneled and carries out supporting first immediately;
After through the top board place of supporting first monitoring device being installed, meeting head on to continue driving;
Utilize the deflection of described monitoring device monitoring development machine rear portion back to change, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sends alarm signal;
According to described alarm signal, secondary supporting is in time carried out through the coal road of supporting first in the development machine rear portion.
2. method according to claim 1 is characterized in that, the deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, sends alarm signal and comprises:
When the deflection that monitors development machine rear portion back when described monitoring device surpasses the 10-15% of safe deflection a, send alarm signal.
3. method according to claim 2 is characterized in that, described safe deflection a obtains according to following formula: a=△ h* §
Wherein, a is safe deflection; △ h is the actual deflection of top board; § is the country rock classification coefficient, and span is 0-1.
4. method according to claim 2 is characterized in that, described method also comprises step:
The deflection that monitors development machine rear portion back when described monitoring device changes when reaching predetermined value, control device to development machine sends block signal, the control device of described development machine carries out locking according to described block signal with the start-up circuit of described development machine, forbid the startup of development machine, and the supporting scope first at development machine rear portion carried out the secondary reinforce support immediately, make overall supporting effect reach designing requirement.
5. method according to claim 4 is characterized in that, after secondary supporting is finished in the tunnel at development machine rear portion, removes described alarm signal; When described monitor signal was disengaged, described monitoring device sent unlocking signal to the control device of development machine, and the control device of described development machine carries out release according to described unlocking signal with the start-up circuit of described development machine, allowed the startup of development machine.
6. according to each described method of claim 1 to 5, it is characterized in that, along the direction of moving towards in tunnel, at the top board place through supporting first a plurality of monitoring devices are installed successively;
When meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than another predetermined value, also send alarm signal;
According to described alarm signal, the coal road through supporting is first in time carried out secondary supporting.
7. according to each described method of claim 1-6, it is characterized in that, describedly monitor distance and meet head on distance between the nearest monitoring device during greater than another predetermined value when meet head on farthest monitoring device of distance, also send alarm signal and comprise:
When meet head on farthest monitoring device of distance monitors distance and meets head on distance between the nearest monitoring device during greater than 50 meters, also send alarm signal.
8. according to each described method of claim 1-7, it is characterized in that, according to described alarm signal, the coal road through supporting first in time carried out secondary supporting comprise:
According to described alarm signal, the coal road through supporting is first in time carried out secondary supporting to the described monitoring device place that sends alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090717.5A CN103195433B (en) | 2013-03-20 | 2013-03-20 | Method for speedy drivage in large section coal road |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310090717.5A CN103195433B (en) | 2013-03-20 | 2013-03-20 | Method for speedy drivage in large section coal road |
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| CN103195433A true CN103195433A (en) | 2013-07-10 |
| CN103195433B CN103195433B (en) | 2015-02-18 |
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| CN201310090717.5A Expired - Fee Related CN103195433B (en) | 2013-03-20 | 2013-03-20 | Method for speedy drivage in large section coal road |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696782A (en) * | 2013-12-17 | 2014-04-02 | 中煤西安设计工程有限责任公司 | Arrangement method for mine overlarge-section combined roadway |
| CN115263308A (en) * | 2022-08-30 | 2022-11-01 | 乌海市天誉煤炭有限责任公司 | Blasting roof-cutting gob-side entry retaining method |
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| CN2054829U (en) * | 1989-09-20 | 1990-03-21 | 煤炭科学研究总院北京开采研究所 | Detecting alarm instrument for mine crush |
| CN1834405A (en) * | 2006-04-13 | 2006-09-20 | 山东科技大学 | Remote monitoring precasting method of empty zone hard top plate |
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2013
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Patent Citations (4)
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| JPS5980899A (en) * | 1982-09-23 | 1984-05-10 | フオエスト−アルピネ・アクチエンゲゼルシヤフト | Apparatus for positional determination of cutting leading end part of new pit drilling and mining machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696782A (en) * | 2013-12-17 | 2014-04-02 | 中煤西安设计工程有限责任公司 | Arrangement method for mine overlarge-section combined roadway |
| CN103696782B (en) * | 2013-12-17 | 2015-07-22 | 中煤西安设计工程有限责任公司 | Arrangement method for mine overlarge-section combined roadway |
| CN115263308A (en) * | 2022-08-30 | 2022-11-01 | 乌海市天誉煤炭有限责任公司 | Blasting roof-cutting gob-side entry retaining method |
| CN115263308B (en) * | 2022-08-30 | 2023-08-08 | 乌海市天誉煤炭有限责任公司 | Blasting roof-cutting gob-side entry retaining method |
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| CN103195433B (en) | 2015-02-18 |
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Inventor after: Yang Renshu Inventor after: Guo Dongming Inventor after: Li Xuebin Inventor before: Yang Renshu Inventor before: Guo Dongming Inventor before: Zhang Yi Inventor before: Li Xuebin |
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Free format text: CORRECT: INVENTOR; FROM: YANG RENSHU GUO DONGMING ZHANG YI LI XUEBIN TO: YANG RENSHU GUO DONGMING LI XUEBIN |
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Granted publication date: 20150218 |