CN106908031B - The monitoring method of the relative gravity of subsidence in a kind of process of coal mining - Google Patents
The monitoring method of the relative gravity of subsidence in a kind of process of coal mining Download PDFInfo
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- CN106908031B CN106908031B CN201710108127.9A CN201710108127A CN106908031B CN 106908031 B CN106908031 B CN 106908031B CN 201710108127 A CN201710108127 A CN 201710108127A CN 106908031 B CN106908031 B CN 106908031B
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- Prior art keywords
- relative gravity
- coal mining
- measuring point
- point
- subsidence
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Abstract
The invention discloses the monitoring method of the relative gravity of subsidence in a kind of process of coal mining of earth monitor technical field, specific step is as follows: S1 for the monitoring method of the relative gravity of subsidence in the process of coal mining: being corrected before measurement to relative gravity meter；S2: point location is measured according to the landforms situation on coal mining ground, it then follows measuring point does not have the rule that obvious soil density changes, measuring point topography is more smooth, and measuring point is set at coal mining, carries out relative gravity measurement to measuring point and evaluation is gIt surveys；S3: control point selects: reference object of the control point as measuring point, measuring point is using control point as surveyors' staff, the monitoring method of the relative gravity of subsidence in the process of coal mining, measurement method is relatively simple, by carrying out separating measurement to relative gravity meter, measurement result is more accurate, smaller by external influence factor.
Description
Technical field
The present invention relates to earth monitor technical field, the relative gravity of subsidence in specially a kind of process of coal mining
Monitoring method.
Background technique
Now, with the rapid development of our country's economy, the demand of the energy and electric power also rapidly increases, and can break after coal mining
Original mechanical balance inside bad rock mass causes overlying rock and earth's surface that mobile and deformation occurs, as the passage of exploitation will expand
It is scattered to earth's surface, ground is caused to settle, existing land resource is destroyed and is brought to surrounding buildings and directly or indirectly endangered
Evil, therefore reasonable prediction subsidence range is of great significance to this life geological disaster and protection building etc. is reduced, existing prison
Survey method mainly passes through satellite, radar and three dimension laser scanning surreying, measurement effect of this measurement method for complicated landform
It is bad, for this purpose, we have proposed a kind of monitoring methods of the relative gravity of subsidence in process of coal mining.
Summary of the invention
The purpose of the present invention is to provide a kind of monitoring method of the relative gravity of subsidence in process of coal mining, with
It solves existing monitoring method mentioned above in the background art and mainly passes through satellite, radar and three dimension laser scanning surreying, this
The kind measurement method problem bad for the measurement effect of complicated landform.
To achieve the above object, the invention provides the following technical scheme: in a kind of process of coal mining subsidence phase
To the monitoring method of gravity, specific step is as follows for the monitoring method of the relative gravity of subsidence in the process of coal mining:
S1: relative gravity meter is corrected before measurement；
S2: point location is measured according to the landforms situation on coal mining ground, it then follows it is close that measuring point does not have obvious soil
The more smooth rule of degree variation, measuring point topography, measuring point are set at coal mining, carry out relative gravity survey to measuring point
It measures and evaluation is gIt surveys；
S3: control point selects: reference object of the control point as measuring point, and measuring point is marked using control point as measurement
Ruler, control point are set in zero elevation point, carry out relative gravity measurement to control point and evaluation is gIt is right；
S4: setting relative gravity meter at control point, sets one every 5 meters downwards using measuring point as starting point relatively
Gravity measuring equipment sets up altogether five groups, reads the reading g of each relative gravity meteriAnd its hi, according to giAnd hiValue into
Row calculates gravity gradient value
S5: it is carried out calculating surface subsidence value according to the data of measurement:Wherein:
Grad (g) is gravity gradient value；
G is universal gravitational constant；
R is the distance between coal mining centroid distance measuring point；
M0For the weight for producing coal；
Δ g=gIt surveys-gIt is right。
Preferably, it requires to be corrected before relative gravity meter use each time.
Preferably, level meter is installed, the relative gravity meter uses on the pedestal of the relative gravity meter
It is preceding that horizontal adjustment is carried out by level meter.
Preferably, the distance between described coal mining centroid distance measuring point R is 20-30 meters.
Preferably, the weight M of the coal0Measurement method use measurement unit volume coal weight M, according to exploitation
The volume V of coal multiplied by unit volume coal weight M, to obtain the weight M of coal0。
Compared with prior art, the beneficial effects of the present invention are: in the process of coal mining subsidence relative gravity
Monitoring method, measurement method is relatively simple, by relative gravity meter carry out separate measurement, measurement result is compared with subject to
Really, smaller by external influence factor.
Detailed description of the invention
Fig. 1 is work flow diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: the relative gravity of subsidence in a kind of process of coal mining
Monitoring method, specific step is as follows for the monitoring method of the relative gravity of subsidence in the process of coal mining:
S1: relative gravity meter is corrected before measurement；
S2: point location is measured according to the landforms situation on coal mining ground, it then follows it is close that measuring point does not have obvious soil
The more smooth rule of degree variation, measuring point topography, measuring point are set at coal mining, carry out relative gravity survey to measuring point
It measures and evaluation is gIt surveys；
S3: control point selects: reference object of the control point as measuring point, and measuring point is marked using control point as measurement
Ruler, control point are set in zero elevation point, carry out relative gravity measurement to control point and evaluation is gIt is right；
S4: setting relative gravity meter at control point, sets one every 5 meters downwards using measuring point as starting point relatively
Gravity measuring equipment sets up altogether five groups, reads the reading g of each relative gravity meteriAnd its hi, according to giAnd hiValue into
Row calculates gravity gradient value
S5: it is carried out calculating surface subsidence value according to the data of measurement:Wherein:
Grad (g) is gravity gradient value；
G is universal gravitational constant；
R is the distance between coal mining centroid distance measuring point；
M0For the weight for producing coal；
Δ g=gIt surveys-gIt is right。
Wherein, it requires to be corrected before relative gravity meter use each time, the relative gravity meter
Pedestal on level meter is installed, the relative gravity meter passes through level meter progress horizontal adjustment, the exploitation using preceding
The distance between coal centroid distance measuring point R is 20-30 meters, the weight M of the coal0Measurement method use measurement unit
The weight M of volume coal, according to the volume V of coal mining multiplied by the weight M of unit volume coal, to obtain the weight of coal
M0。
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the monitoring method of the relative gravity of subsidence in a kind of process of coal mining, which is characterized in that the coal mining
Specific step is as follows for the monitoring method of the relative gravity of subsidence in journey:
S1: relative gravity meter is corrected before measurement；
S2: point location is measured according to the landforms situation on coal mining ground, it then follows measuring point becomes without obvious soil density
Change, the rule that measuring point topography is more smooth, measuring point is set at coal mining, carries out relative gravity measurement simultaneously to measuring point
Evaluation is gIt surveys；
S3: control point selects: reference object of the control point as measuring point, measuring point are right using control point as surveyors' staff
It is set in zero elevation point according to point, relative gravity measurement is carried out to control point and evaluation is gIt is right；
S4: relative gravity meter is set at control point, is starting point downwards every 5 meters of settings, one relative gravity using measuring point
Measuring instrument sets up altogether five groups, reads the reading g of each relative gravity meteriAnd its hi, according to giAnd hiValue counted
Calculate gravity gradient value
S5: it is carried out calculating surface subsidence value according to the data of measurement:Wherein:
Grad (g) is gravity gradient value；
G is universal gravitational constant；
R is the distance between coal mining centroid distance measuring point；
M0For the weight for producing coal；
Δ g=gIt surveys-gIt is right。
2. the monitoring method of the relative gravity of subsidence in a kind of process of coal mining according to claim 1, special
Sign is: requiring to be corrected before relative gravity meter use each time.
3. the monitoring method of the relative gravity of subsidence in a kind of process of coal mining according to claim 1, special
Sign is: being equipped with level meter on the pedestal of the relative gravity meter, the relative gravity meter is using preceding passing through water
Level carries out horizontal adjustment.
4. the monitoring method of the relative gravity of subsidence in a kind of process of coal mining according to claim 1, special
Sign is: the distance between described coal mining centroid distance measuring point R is 20-30 meters.
5. the monitoring method of the relative gravity of subsidence in a kind of process of coal mining according to claim 1, special
Sign is: the weight M of the coal0Measurement method use measurement unit volume coal weight M, according to the body of coal mining
V is accumulated multiplied by the weight M of unit volume coal, to obtain the weight M of coal0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108127.9A CN106908031B (en) | 2017-02-27 | 2017-02-27 | The monitoring method of the relative gravity of subsidence in a kind of process of coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710108127.9A CN106908031B (en) | 2017-02-27 | 2017-02-27 | The monitoring method of the relative gravity of subsidence in a kind of process of coal mining |
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| Publication Number | Publication Date |
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| CN106908031A CN106908031A (en) | 2017-06-30 |
| CN106908031B true CN106908031B (en) | 2019-11-01 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536057A (en) * | 2014-12-30 | 2015-04-22 | 山东科技大学 | Method for monitoring relative gravity of surface subsidence in coal mining process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO310797B1 (en) * | 1999-12-13 | 2001-08-27 | Univ California | Procedure for monitoring subsidence subsidence and gravity change |
| KR101514264B1 (en) * | 2013-04-26 | 2015-04-22 | 한국전기연구원 | Method for measuring the ground sinks using gravity sensor |
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2017
- 2017-02-27 CN CN201710108127.9A patent/CN106908031B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536057A (en) * | 2014-12-30 | 2015-04-22 | 山东科技大学 | Method for monitoring relative gravity of surface subsidence in coal mining process |
Non-Patent Citations (2)
| Title |
|---|
| 微重力监测地面沉降;华昌才 等;《地壳形变与地震》;19960831;第16卷(第3期);第95页至第97页 * |
| 重力梯度同步观测方法;赵珞成 等;《武汉大学学报·信息科学版》;20120430;第37卷(第4期);第428页至第431页 * |
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