CN202886623U - Stratum measurement simulation apparatus - Google Patents
Stratum measurement simulation apparatus Download PDFInfo
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- CN202886623U CN202886623U CN 201220400764 CN201220400764U CN202886623U CN 202886623 U CN202886623 U CN 202886623U CN 201220400764 CN201220400764 CN 201220400764 CN 201220400764 U CN201220400764 U CN 201220400764U CN 202886623 U CN202886623 U CN 202886623U
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- backfill layer
- stratum
- layer
- loose
- gravel
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- 238000004088 simulation Methods 0.000 title abstract description 4
- 238000005259 measurement Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 6
- 210000000746 body region Anatomy 0.000 claims 1
- 241001123248 Arma Species 0.000 abstract description 12
- 238000001228 spectrum Methods 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract 3
- 239000002689 soil Substances 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005065 mining Methods 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 5
- 238000010183 spectrum analysis Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
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Abstract
The utility model provides a stratum measurement simulation apparatus, comprising an original stratum, a hollow loose backfill layer, a macadam backfill layer and a dry saw-dust layer, wherein the original stratum a cuboid area in a normal stratum. A cuboid gap is arranged on a right-upper portion of the original stratum. The dry saw-dust layer is mounted on a bottom of the gap. The hollow loose backfill layer and the macadam backfill layer which are used for filling the gap are disposed on the dry saw-dust layer in parallel in the gap. A material of the hollow loose backfill layer is loose soil and a material of the macadam backfill layer is macadam. When the stratum measurement simulation apparatus is measured by a geological radar, effects of each stratum on ARMA spectrum density can be analyzed to obtain and accuracy when the geological radar observes geology is raised.
Description
Technical field
The utility model relates to a kind of stratum and measures analogue means.
Background technology
Before coal mining, need to the strata condition of locality be detected, mainly adopt at present geological radar technology, by the underground emission broadband of sky alignment radar wave, run into the wave impedance interphase and just produce reflection, reach the purpose of explaining the buried target body by analyzing the reflected signal energy variation.
When if the wideband radar wave of radar emission incides size than the much smaller barrier of wavelength, scattering phenomenon occurs namely.When radar wave is propagated in broken zone, small bore in the fracture area will produce a large amount of scattering waves, the interference signal of scattering wave and receiving antenna receives, radar wave is in passive scattering state in scattering region, each fringe area all has self scattering dominant frequency, and broken regional scattering dominant frequency is higher than the medium continuum; And radar wave is when propagating in cavity body owing to not having scattering and reflection, receive mainly take the low frequency wonder of instrument itself and the faint oscillator signal between the antenna as main, radio-frequency component is lower.Therefore for the broken regionally detecting of underground mining, both can make an explanation from the energy variation angle of reflected signal (directly explaining) also can be from the spectral change of signal the medium communication process make an explanation (indirect interpretation).
Spectral analysis method is divided into two large classes: imparametrization method and parametric method.Imparametrization analysis of spectrum (such as period map method) is named again the Classical Spectrum analysis, and its major defect is that frequency resolution is low; And the parametrization analysis of spectrum is modern spectrum analysis, and it has advantages of that frequency resolution is high.ARMA(auto-regressive moving-average model in the modern spectrum) analysis of spectrum is a kind of existing modeling method, namely by being set up model, steady linear signal process comes the estimating power spectral density, can when low signal-to-noise ratio, extract signal characteristic, have higher resolution with the broken regional response characteristic of the ARMA analysis of spectrum in the modern spectrum.But before carrying out the ARMA analysis of spectrum, need to understand each stratum to the impact of ARMA spectrum.
Therefore, measure in order to utilize high-resolution ARMA spectral analysis technology to carry out geology, the analogue means that provides a kind of geology to measure is provided.
The utility model content
Content of the present utility model provides a kind of stratum and measures analogue means, conveniently utilizes the ARMA spectral analysis method, improves the precision that the stratum is measured.
For achieving the above object, the utility model has been taked following technical scheme:
Stratum of the present utility model is measured analogue means and is comprised former stratum, empty loose backfill layer, gravel backfill layer and dry sawdust layer.Described former stratum is the bodily form zone, a block length side in the normal stratum, upper right quarter is provided with the cuboid breach on described former stratum, be provided with dry sawdust layer in described breach bottom, be provided with the loose backfill layer in described cavity and described gravel backfill layer above the described dry sawdust layer in described breach, the loose backfill layer in described cavity and described gravel backfill layer fill up described breach side by side.The material of the loose backfill layer in described cavity is loose ground, and the material of described gravel backfill layer is rubble.Described former stratum, empty loose backfill layer, gravel backfill layer and dry sawdust layer are simulated respectively normal stratum, empty ravel area, subterranean strata fracture area and underground water, by the impact on ARMA spectrum after reflection of radar wave of each geological stratification, judge the geological condition on the stratum that radar wave measures.
Preferably, the loose backfill layer in described cavity, gravel backfill layer and dry sawdust layer are rectangular parallelepiped, so that analyze more exactly variant stratum to the situation that affects of ARMA spectrum.
Preferably, the width of the loose backfill layer in described cavity is 0.8m-1.2m, more preferably 1.0m; Described gravel backfill layer width is 1.0m-1.4m, more preferably 1.2m; The thickness of the loose backfill layer in described cavity and described gravel backfill layer is 1.5m-2.5m, more preferably 2.0m; Described dry sawdust layer thickness is 10cm-30cm, more preferably 20cm.
Since the simulated reflections unit simulation treat the various strata condition of production zone, can draw by analysis each stratum to the impact of ARMA spectral density, thereby when treating production zone with geological radar and carry out geological observation, can judge more exactly the stratigraphic distribution situation.
Description of drawings
Fig. 1 is longitudinal profile view of the present utility model.
Embodiment
Generally comprise normal stratum, shatter belt and the ravel area of subsiding on the stratum for the treatment of production zone, for simulating these three kinds of stratum to the impact of the ARMA spectral density of radar wave, designed stratum as shown in Figure 1 and measured analogue means 2.The stratum is measured analogue means 2 and is comprised former stratum 21, empty loose backfill layer 22, gravel backfill layer 23 and dry sawdust layer 24, simulates respectively normal stratum, empty ravel area, subterranean strata fracture area and underground water.A rectangular tagma in the normal stratum that former stratum 21 is zone to be observed, upper right quarter on former stratum 21 is provided with a cuboid breach, lay dry sawdust layer 24 in described breach bottom, above the dry sawdust layer 24 of described breach, empty loose backfill layer 22 and the gravel backfill layer 23 of cuboid fill up described breach side by side.
Loose backfill layer 22 width in cavity (referring to the length on the horizontal direction on the figure middle section, lower same) are preferably 0.8m-1.2m, more preferably 1.0m; Gravel backfill layer 23 width are preferably 1.0m-1.4m, more preferably 1.2m; The thickness of the loose backfill layer 22 in cavity and gravel backfill layer 23 (referring to the longitudinal length on the figure middle section, lower same) is preferably 1.5m-2.5m, more preferably 2m; Dry sawdust layer 24 is positioned at the below of empty loose backfill layer 22 and gravel backfill layer 23, and thickness is preferably 10cm-30cm, more preferably 20cm.The loose backfill layer 22 in cavity and gravel backfill layer 23 are by cheating the hole from the earth's surface to former stratum 1 excavation cuboid, below lay dry sawdust after, above dry sawdust layer 24, carry out backfill with loose ground and irregular rubble respectively and form, wherein the maximum rubble diameter of gravel backfill layer 23 employing is 0.5m, and backfill is processed by overcompaction.
Carrying out the loose ground of backfill and the wetness conditions of irregular rubble can adjust according to the geology for the treatment of mining area, if for example treat that mining area's geology is comparatively dry, then empty loose backfill layer 22, gravel backfill layer 23 can adopt respectively loose ground and the irregular rubble of processing through super-dry, and its relative dielectric constant all is controlled at below 7.If treating the top, coal seam of mining area is sandstone (high resistance body), then in order to simulate this geological condition as far as possible, the backfill that empty loose backfill layer 22 is selected is preferably the high resistant loose ground.
Above the mensuration analogue means 2 of stratum, place geological radar, measure analogue means 2 emission radar waves to the stratum by geological radar, analyze through the radar wave that stratum mensuration analogue means 2 is reflected, get final product clear and definite various geologic structures for the impact of ARMA spectral density, when treating the observation area with geological radar when measuring on the spot, can according to the top drawn data that affect, improve the analysis precision for radar wave, thereby judge more accurately geological condition.
Above-described embodiment is only for illustration of the utility model; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from the utility model spirit and scope; can also make a variety of changes and modification; therefore all technical schemes that are equal to also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (4)
1. analogue means is measured on a stratum, it is characterized in that, comprises former stratum, empty loose backfill layer, gravel backfill layer and dry sawdust layer;
Described former stratum is the block length side's body region in the normal stratum, upper right quarter is provided with the cuboid breach on described former stratum, be provided with dry sawdust layer in described breach bottom, be provided with the loose backfill layer in described cavity and described gravel backfill layer above the described dry sawdust layer in described breach, the loose backfill layer in described cavity and described gravel backfill layer fill up described breach side by side;
The material of the loose backfill layer in described cavity is loose ground, and the material of described gravel backfill layer is rubble.
2. analogue means is measured on stratum according to claim 1, it is characterized in that, the loose backfill layer in described cavity, gravel backfill layer and dry sawdust layer are rectangular parallelepiped.
3. analogue means is measured on stratum according to claim 1 and 2, it is characterized in that, the width of the loose backfill layer in described cavity is 0.8m-1.2m, described gravel backfill layer width is 1.0m-1.4m, the thickness of the loose backfill layer in described cavity and described gravel backfill layer is 1.5m-2.5m, and described dry sawdust layer thickness is 10cm-30cm.
4. analogue means is measured on stratum according to claim 3, it is characterized in that, the width of the loose backfill layer in described cavity is 1.0m, and the width of described gravel backfill layer is 1.2m, the thickness of the loose backfill layer in described cavity and described gravel backfill layer is 2m, and described dry sawdust layer thickness is 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400764 CN202886623U (en) | 2012-08-13 | 2012-08-13 | Stratum measurement simulation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400764 CN202886623U (en) | 2012-08-13 | 2012-08-13 | Stratum measurement simulation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886623U true CN202886623U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400764 Expired - Lifetime CN202886623U (en) | 2012-08-13 | 2012-08-13 | Stratum measurement simulation apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094042A (en) * | 2016-06-02 | 2016-11-09 | 华北水利水电大学 | A kind of coal field Mining subsidence and the analog detection assay device of reparation |
-
2012
- 2012-08-13 CN CN 201220400764 patent/CN202886623U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094042A (en) * | 2016-06-02 | 2016-11-09 | 华北水利水电大学 | A kind of coal field Mining subsidence and the analog detection assay device of reparation |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |