CN112595270A - Roadway deformation monitoring method - Google Patents
Roadway deformation monitoring method Download PDFInfo
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- CN112595270A CN112595270A CN202011479503.3A CN202011479503A CN112595270A CN 112595270 A CN112595270 A CN 112595270A CN 202011479503 A CN202011479503 A CN 202011479503A CN 112595270 A CN112595270 A CN 112595270A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/20—Measuring arrangements characterised by the use of fluids for measuring areas, e.g. pneumatic planimeters
Abstract
The application discloses a roadway deformation monitoring method, which comprises the following steps: acquiring the ventilation volume of a roadway; laying observation points; acquiring the wind speed at an observation point; and calculating the area of the section of the roadway according to the wind speed and the ventilation quantity. According to the method, the tunnel ventilation volume is obtained, the wind speed at the observation point is monitored, the tunnel section area is calculated according to the ventilation volume and the wind speed based on the principle that the tunnel wind volume is equal, ascending installation and observation are not needed, the monitoring time can be greatly saved, the monitoring efficiency is improved, the risk caused by ascending can be avoided, and meanwhile, the monitoring method is simple and convenient and low in cost.
Description
Technical Field
The application relates to the technical field of coal mines, in particular to a roadway deformation monitoring method.
Background
At present, the roadway deformation monitoring method adopted by coal mines is as follows: and installing a roof separation instrument every 50m for observation, and then calculating the section area of the roadway according to the roof separation, thereby obtaining the deformation condition of the roadway. The inventor finds that the observation by adopting the roof separation instrument has the following defects in the process of realizing the application: the roof separation layer appearance is installed 200mm department below the roof, needs the installation of ascending a height and observes, wastes time and energy, has the safety risk moreover.
Disclosure of Invention
In view of the above, the present application provides a method for monitoring a roof separation deformation to solve the above technical problem.
The application provides a roadway deformation monitoring method, which comprises the following steps: acquiring the ventilation volume of a roadway; laying observation points; acquiring the wind speed at an observation point; and calculating the area of the section of the roadway according to the wind speed and the ventilation quantity.
Optionally, the area of the cross section of the roadway is calculated according to the wind speed and the ventilation volume, and then the method further comprises: calculating the deformation of the tunnel according to the area of the cross section of the tunnel and the area of the cross section of the original tunnel; and dividing the roadway into a plurality of early warning areas according to the deformation of the roadway.
Optionally, dividing the roadway into a plurality of early warning areas according to the roadway deformation amount includes: setting a division standard; and dividing the roadway into a plurality of early warning areas according to the division standard.
Optionally, the number of the early warning areas is at least four, and the early warning areas are a safety area, a concern area, a reinforcement area and a danger area.
Optionally, the roadway is divided into a plurality of early warning areas according to the roadway deformation, and then the method further includes: and marking the plurality of early warning areas with different colors.
Optionally, the multiple warning areas are labeled with different colors, and then the method further includes: calculating the ratio of each early warning area to the whole area; and when the ratio of the dangerous areas is larger than the preset ratio, alarming.
Optionally, the acquiring the ventilation volume of the roadway comprises: acquiring a first tunnel air volume of an air return tunnel; acquiring a second tunnel air volume of the haulage tunnel; acquiring the third roadway air volume of the auxiliary transportation roadway; and calculating the ventilation volume of the tunnel according to the air volume of the first tunnel, the air volume of the second tunnel and the air volume of the third tunnel.
Optionally, acquiring the wind speed at the observation point comprises: installing an anemoscope at an observation point; and acquiring the wind speed at the observation point by adopting an anemometer.
Optionally, laying out observation points comprises: acquiring geological parameters of a roadway; determining the positions and the number of observation points according to geological parameters; and arranging the observation points according to the positions and the number of the observation points.
According to the roadway deformation monitoring method, the roadway ventilation volume is obtained, the wind speed at the observation point is monitored, the roadway section area is calculated according to the ventilation volume and the wind speed based on the principle that the roadway wind volume is equal, ascending installation and observation are not needed, the monitoring time can be greatly saved, the monitoring efficiency is improved, the risk caused by ascending can be avoided, and meanwhile, the monitoring method is simple and convenient and low in cost.
Drawings
Fig. 1 is a flowchart of a roadway deformation monitoring method of the present application.
Detailed Description
The technical solutions of the present application are described in detail below with reference to the accompanying drawings and specific embodiments. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Fig. 1 shows a flowchart of a roadway deformation monitoring method according to the present application, and as shown in fig. 1, the roadway deformation monitoring method according to the present application includes:
s100, acquiring the ventilation volume of the roadway;
wherein, the air volume of each position in the tunnel is equal.
S200, laying observation points;
the observation points can be arranged according to the length of the tunnel, and the observation points can be arranged at the broken position of the top plate, the water spraying position, the crossing of the tunnel and the crossing fault position as required.
S300, acquiring the wind speed at an observation point;
in the present embodiment, an anemometer may be employed to acquire wind speed. The wind speed can be monitored in real time or at predetermined time intervals.
And S400, calculating the area of the section of the roadway according to the wind speed and the ventilation quantity.
The section of the roadway is vertical to the length direction of the roadway. And calculating the area of the section of the tunnel according to a formula, namely the area of the section of the tunnel is the area of the section of the ventilation volume/the wind speed.
According to the roadway deformation monitoring method, the roadway ventilation volume is obtained, the wind speed at the observation point is monitored, the roadway section area is calculated according to the ventilation volume and the wind speed based on the principle that the roadway wind volume is equal, ascending installation and observation are not needed, the monitoring time can be greatly saved, the monitoring efficiency is improved, the risk caused by ascending can be avoided, and meanwhile, the monitoring method is simple and convenient and low in cost.
Further, S400, the area of the section of the roadway is calculated according to the wind speed and the ventilation volume, and then the method further comprises the following steps:
s500, calculating roadway deformation according to the roadway section area and the original roadway section area;
and calculating the deformation of the tunnel according to the deformation of the tunnel, namely the area of the deformed tunnel section/the area of the original tunnel section. Wherein, the original roadway section area is the roadway section area which is not deformed.
S600, dividing the roadway into a plurality of early warning areas according to the deformation of the roadway.
And dividing the roadway into a safety area, a concerned area, a reinforced area and a dangerous area according to the deformation of the roadway. Safe zones are less risky and may be attended to less frequently, for example, once a week. The area of interest, which is at risk, needs attention. The reinforced area needs to take measures to reinforce the support, and the dangerous area needs to be immediately handled, for example, to support and the like.
The roadway is divided into a plurality of early warning areas according to the roadway deformation, so that the roadway can be conveniently managed.
Further, S600, according to the roadway deflection, dividing the roadway into a plurality of early warning areas comprises:
s610, setting a division standard;
in this example, the division criteria are less than 5%, 5-10%, 10-15%, > 15%, etc., respectively.
And S620, dividing the roadway into a plurality of early warning areas according to the division standard.
The roadway can be divided into a safety area, a concern area, a reinforcement area and a danger area according to the above standard.
By setting the division standard, the division of the early warning area can better meet the requirement, and the roadway can be better monitored.
In a specific embodiment, S620, dividing the roadway into a plurality of early warning areas according to the roadway deformation amount, and then further including:
s630, marking a plurality of early warning areas with different colors so as to facilitate checking by workers and quickly know roadway deformation conditions.
Further, S630, labeling the multiple warning areas with different colors, and then further including:
s640, calculating the ratio of each early warning area to all areas;
and S650, alarming when the ratio of the dangerous areas is larger than a preset ratio.
The alarm can adopt sound and light alarm and other modes. Through setting up the warning, can remind the staff, handle danger area, guarantee tunnel safety.
Optionally, S100, the acquiring the ventilation volume of the roadway includes:
s110, acquiring a first roadway air volume of an air return roadway;
s120, acquiring a second roadway air volume of the haulage roadway;
s130, acquiring a third roadway air volume of the auxiliary transportation roadway;
and S140, calculating the ventilation volume of the tunnel according to the air volume of the first tunnel, the air volume of the second tunnel and the air volume of the third tunnel.
The ventilation volume is obtained by calculating the average value of the first tunnel air volume, the second tunnel air volume and the third tunnel air volume, and the accuracy of the ventilation volume can be improved, so that the calculation accuracy of the section area of the tunnel is improved, and the tunnel is better monitored.
Preferably, S300, acquiring the wind speed at the observation point includes:
installing an anemoscope at an observation point;
the anemoscope can be arranged on the side wall of the roadway and also can be arranged on the top bottom plate of the roadway.
And acquiring the wind speed at the observation point by adopting an anemometer.
The wind speed is measured by the anemoscope, so that the wind speed acquisition efficiency can be improved, and the roadway deformation condition can be obtained more quickly.
Further, S200, laying out observation points includes:
s210, acquiring geological parameters of a roadway;
the geological parameters include length, inclination, strike, etc. of the roadway.
S220, determining the positions and the number of the observation points according to the geological parameters;
the number of observation points may be two or more. The observation points can be uniformly distributed along the length direction of the roadway.
And S230, arranging the observation points according to the positions and the number of the observation points.
The observation points are arranged by adopting the geological parameters, so that the arrangement of the observation points is more scientific, and the roadway deformation monitoring is more facilitated.
The technical solutions of the present application are described in detail with reference to specific embodiments, which are used to help understand the ideas of the present application. The derivation and modification made by the person skilled in the art on the basis of the specific embodiment of the present application also belong to the protection scope of the present application.
Claims (9)
1. A roadway deformation monitoring method is characterized by comprising the following steps:
acquiring the ventilation volume of a roadway;
laying observation points;
acquiring the wind speed at an observation point;
and calculating the area of the section of the roadway according to the wind speed and the ventilation quantity.
2. The roadway deformation monitoring method according to claim 1, wherein a roadway section area is calculated according to the wind speed and the ventilation volume, and then the method further comprises:
calculating the deformation of the tunnel according to the area of the cross section of the tunnel and the area of the cross section of the original tunnel;
and dividing the roadway into a plurality of early warning areas according to the deformation of the roadway.
3. The roadway deformation monitoring method of claim 2, wherein dividing the roadway into a plurality of early warning areas according to roadway deformation comprises:
setting a division standard;
and dividing the roadway into a plurality of early warning areas according to the division standard.
4. The roadway deformation monitoring method according to claim 3, wherein the number of the early warning areas is at least four, and the early warning areas are a safety area, a concern area, a reinforcement area and a danger area.
5. The roadway deformation monitoring method according to claim 4, wherein the roadway is divided into a plurality of early warning areas according to roadway deformation, and then the method further comprises the following steps:
and marking the plurality of early warning areas with different colors.
6. The roadway deformation monitoring method according to claim 5, wherein the plurality of early warning areas are marked with different colors, and then further comprising:
calculating the ratio of each early warning area to the whole area;
and when the ratio of the dangerous areas is larger than the preset ratio, alarming.
7. The roadway deformation monitoring method according to any one of claims 1 to 6, wherein the acquiring of the ventilation volume of the roadway comprises:
acquiring a first tunnel air volume of an air return tunnel;
acquiring a second tunnel air volume of the haulage tunnel;
acquiring the third roadway air volume of the auxiliary transportation roadway;
and calculating the ventilation volume of the tunnel according to the air volume of the first tunnel, the air volume of the second tunnel and the air volume of the third tunnel.
8. The roadway deformation monitoring method of any one of claims 1 to 6, wherein acquiring the wind speed at the observation point comprises:
installing an anemoscope at an observation point;
and acquiring the wind speed at the observation point by adopting an anemometer.
9. The roadway deformation monitoring method of any one of claims 1-6, wherein laying observation points comprises:
acquiring geological parameters of a roadway;
determining the positions and the number of observation points according to geological parameters;
and arranging the observation points according to the positions and the number of the observation points.
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| CN202011479503.3A CN112595270B (en) | 2020-12-16 | 2020-12-16 | Roadway deformation monitoring method |
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| CN107559046A (en) * | 2017-10-13 | 2018-01-09 | 河南理工大学 | Coal mine down-hole tunnel deformation, air quantity and gas density comprehensive monitoring early warning system |
| CN110440745A (en) * | 2019-08-14 | 2019-11-12 | 中铁西南科学研究院有限公司 | A kind of deformation detecting method of lining cutting, device and storage medium |
| CN110733020A (en) * | 2019-10-30 | 2020-01-31 | 中国煤炭科工集团太原研究院有限公司 | mining rail mounted ventilation monitoring robot |
| CN111648826A (en) * | 2020-05-26 | 2020-09-11 | 陕西彬长孟村矿业有限公司 | Coal mine rock burst prediction early warning system and method |
-
2020
- 2020-12-16 CN CN202011479503.3A patent/CN112595270B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583545A (en) * | 1994-10-31 | 1996-12-10 | Hewlett-Packard Company | Ink level detection in a pressure regulated pen |
| CN203298807U (en) * | 2013-06-27 | 2013-11-20 | 郑州光力科技股份有限公司 | Roadway air volume measuring instrument |
| CN107559046A (en) * | 2017-10-13 | 2018-01-09 | 河南理工大学 | Coal mine down-hole tunnel deformation, air quantity and gas density comprehensive monitoring early warning system |
| CN110440745A (en) * | 2019-08-14 | 2019-11-12 | 中铁西南科学研究院有限公司 | A kind of deformation detecting method of lining cutting, device and storage medium |
| CN110733020A (en) * | 2019-10-30 | 2020-01-31 | 中国煤炭科工集团太原研究院有限公司 | mining rail mounted ventilation monitoring robot |
| CN111648826A (en) * | 2020-05-26 | 2020-09-11 | 陕西彬长孟村矿业有限公司 | Coal mine rock burst prediction early warning system and method |
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