CN113219550A - Strip mine reverse drilling geological logging and ore body delineation method - Google Patents
Strip mine reverse drilling geological logging and ore body delineation method Download PDFInfo
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- CN113219550A CN113219550A CN202110574599.XA CN202110574599A CN113219550A CN 113219550 A CN113219550 A CN 113219550A CN 202110574599 A CN202110574599 A CN 202110574599A CN 113219550 A CN113219550 A CN 113219550A
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- 238000005553 drilling Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000011435 rock Substances 0.000 claims abstract description 40
- 238000009826 distribution Methods 0.000 claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000000151 deposition Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000008021 deposition Effects 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000037237 body shape Effects 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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Abstract
The invention discloses a reverse drilling geological logging and ore body delineation method for strip mine, which relates to the technical field of milling machine auxiliary tools and comprises the following steps of 1, drilling geological drilling holes by a cone drill; step 2, regularly depositing the returned powder of the ore layer (rock stratum) at the hole opening of the roller bit; step 3, sampling return powder of the rock pile at the hole drilling opening of the cone and compiling and recording a rock core; step 4, reversely deducing the occurrence thickness of the ore body, ore bed attitude elements, ore rock boundary positions and the change situation of ore geological grade; step 5, repeating the steps 1 to 4 to obtain sampling data and core catalogues of a plurality of roller drill drilled holes, and completing secondary delineation of ore bodies; the invention utilizes the returned powder of the ore layer (rock stratum) deposited at the periphery of the orifice in the construction process of the roller bit to carry out reverse mineral powder (rock powder) sedimentary phase analysis, geological record and rock-ore chemical analysis, thereby achieving the purposes of delineation of the boundary of an ore body, control of the ore body attitude and mastering of the occurrence geological grade distribution rule of the ore.
Description
Technical Field
The invention relates to the technical field of auxiliary tools of milling machines, in particular to the technical field of reverse drilling geological record and ore body delineation methods of strip mines.
Background
The drilling equipment is various according to different application fields, is small enough to be handheld, and is a thin-wall drilling machine (a wall is drilled for installing pipelines such as an upper water pipeline and a lower water pipeline and an air conditioning pipeline and the like) with the weight of more than ten kilograms, and is large enough to be loaded on an entire train to load an ultra-deep hole drilling machine (such as a 900m electric oil drilling machine, of course, according to different purposes, the structure of the drilling equipment is naturally extremely simple to complex, the simplest possible is just a single-speed gyrator or an impact mechanism, and a complex drilling ship such as an ocean science drilling ship almost completely contains modern scientific technologies, but the drilling equipment is basically an electromechanical integrated product in terms of most common core drilling machines, hydrology well drilling machines, engineering drilling machines, oil drilling machines and the like.
The traditional cone drill drilling equipment only carries out drilling blasting operation, does not carry out geological record and sampling test on a rock core generated by drilling, and further influences the delineation of an ore body boundary, the control of the ore body occurrence and the mastering of an ore occurrence geological grade distribution rule. The purpose of production and exploration cannot be achieved.
Meanwhile, the production and exploration mesh parameters of the drilling mesh of the traditional geological drilling equipment are 50m by 30m, and the drilling mesh parameters are relatively rare and are not favorable for controlling an ore body.
Disclosure of Invention
The invention aims to: in order to solve the technical problem, the invention provides a reverse drilling geological logging and ore body delineation method for an open-pit mine.
The invention specifically adopts the following technical scheme for realizing the purpose:
a reverse drilling geological logging and ore body delineation method for strip mines comprises the following steps:
step 1, substituting geological drilling equipment with roller cone drilling and perforating equipment for strip mine to perform geological production exploration;
step 2, in the process of drilling operation of the open-pit mine roller bit in the step 1, the return powder of an ore layer (rock stratum) is regularly deposited at an orifice of the roller bit;
step 3, sampling the return powder of the cone drill hole ore pile in the step 2, recording the rock core according to the thickness and grade change condition of the return powder deposition, and analyzing the reverse distribution rule of the return powder deposition phase
Step 4, reversely deducing occurrence thickness, ore layer occurrence element change, ore rock boundary position and ore geological grade change condition which can be deduced to be an ore body through ore powder stockpiling thickness and ore grade change rule;
and 5, repeating the steps 1 to 4 to obtain sampling data and core records of a plurality of roller bit drill holes, and completing secondary delineation of the ore body through a plurality of groups of sampling data and core records.
Further, in the step 1, the roller cone drill is used for blasting perforation operation of an open-pit mine, according to mine blasting design parameters, the row spacing of the perforation mesh of the roller cone drill is 5m by 8m or 6m by 10m for construction hole distribution, the height of the step of the open-pit mine is designed, the perforation depth is set to be 16m, the inclination angle is 90 degrees, part of the drill holes in each construction drill hole penetrate through the rock stratum, part of the drill holes penetrate through the rock stratum, and part of the drill holes also penetrate through the rock stratum, although the roller cone drill cannot extract the rock core, a large amount of return powder generated in the perforation can be regarded as the rock core, and therefore, the roller cone drill can be completely used for replacing geological rock core drill to carry out daily geological production and exploration of the mine.
Further, in the step 2, the roller cone drill regularly deposits mineral powder around the orifice in the process of the drilling operation, and the mineral powder is regarded as a core extracted by the core drill and used for secondary delineation of an ore body and judgment of ore grade.
Further, in the step 3 and the step 4, the distribution of the deposited phase from top to bottom through the roller cone drill return powder and the distribution of the ore body are just in a reverse corresponding relationship; calculating the thickness of an ore layer and a rock layer, namely the position of the ore and the position of the ore layer passing through the ore layer by measuring the deposition thickness of the returned powder and deducing a corresponding proportional coefficient with the depth of a drilled hole; the geological grade occurrence condition of the ore body at the position can be judged by sampling and testing the geology of the returned powder grade.
Further, in step 5, the steps 1 to 4 are repeated for each cone drilling return powder to obtain geological record data of each drill hole and perform mathematical analysis on the geological record data, each drill hole is connected according to a rule to obtain a specific distribution range of ore body and ore grade and distribution elements of ore body shape in the exploration area, and the purpose of ore body production exploration and production related requirements are achieved through statistical analysis of cone drilling return powder geological information.
The invention has the following beneficial effects:
1. the open-pit rock bit drilling equipment adopted in the invention is different from the traditional geological drilling equipment, and the reverse mineral powder (rock powder) sedimentary facies analysis, geological record and rock chemical analysis are carried out by utilizing the return powder of the ore layer (rock stratum) deposited on the periphery of the orifice in the rock bit construction process, so that the delineation of the boundary of the ore layer, the control of the ore body occurrence and the mastering of the ore occurrence geological grade distribution rule are achieved.
2. The traditional geological drilling hole carries out geological logging and sampling test on the extracted rock core to achieve the aim of exploration, ore (rock) return powder produced in the drilling process by utilizing a strip mine drilling equipment roller bit is used for replacing the geological rock core to carry out geological logging, and geological information such as ore body thickness, ore rock boundary depth, ore body grade occurrence condition and the like is reversely deduced through ore powder stacking thickness and ore grade change rules.
3. The open-air perforating equipment cone drill is used for replacing a geological drill to carry out production exploration, the exploration mesh of the cone drill is denser than that of the geological drill, the exploration mesh reaches 5m by 8m or 6m by 10m, and the control degree of an ore body is higher; in addition, the hole drilling efficiency of the roller cone is obviously better than that of the traditional geological drilling machine, the corresponding production and exploration period is shorter, and the production service can be better realized.
Drawings
FIG. 1 is a schematic illustration of a strip mine cone bore core logging;
FIG. 2 is a schematic illustration of a geological record of an open bench ore body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 2, the present embodiment provides a surface mine reverse-drilling geological logging and ore body delineation method, comprising the following steps:
step 1, substituting geological drilling equipment with roller cone drilling and perforating equipment for strip mine to perform geological production exploration;
step 2, in the process of drilling operation of the open-pit mine roller bit in the step 1, the return powder of an ore layer (rock stratum) is regularly deposited at an orifice of the roller bit;
step 3, sampling the return powder of the cone drill hole ore pile in the step 2, recording the rock core according to the thickness and grade change condition of the return powder deposition, and analyzing the reverse distribution rule of the return powder deposition phase
Step 4, reversely deducing occurrence thickness, ore layer occurrence element change, ore rock boundary position and ore geological grade change condition which can be deduced to be an ore body through ore powder stockpiling thickness and ore grade change rule;
and 5, repeating the steps 1 to 4 to obtain sampling data and core records of a plurality of roller bit drill holes, and completing secondary delineation of the ore body through a plurality of groups of sampling data and core records.
Further, in the step 1, the roller cone drill is used for blasting perforation operation of an open-pit mine, according to mine blasting design parameters, the row spacing of the perforation mesh of the roller cone drill is 5m by 8m or 6m by 10m for construction hole distribution, the height of the step of the open-pit mine is designed, the perforation depth is set to be 16m, the inclination angle is 90 degrees, part of the drill holes in each construction drill hole penetrate through the rock stratum, part of the drill holes penetrate through the rock stratum, and part of the drill holes also penetrate through the rock stratum, although the roller cone drill cannot extract the rock core, a large amount of return powder generated in the perforation can be regarded as the rock core, and therefore, the roller cone drill can be completely used for replacing geological rock core drill to carry out daily geological production and exploration of the.
Further, in the step 2, the roller cone drill regularly deposits mineral powder around the orifice in the process of the drilling operation, and the mineral powder is regarded as a core extracted by the core drill and used for secondary delineation of an ore body and judgment of ore grade.
Further, in the step 3 and the step 4, the distribution of the deposited phase from top to bottom through the roller cone drill return powder and the distribution of the ore body are just in a reverse corresponding relationship; calculating the thickness of an ore layer and a rock layer, namely the position of the ore and the position of the ore layer passing through the ore layer by measuring the deposition thickness of the returned powder and deducing a corresponding proportional coefficient with the depth of a drilled hole; the geological grade occurrence condition of the ore body at the position can be judged by sampling and testing the geology of the returned powder grade.
Further, in step 5, the steps 1 to 4 are repeated for each cone drilling return powder to obtain geological record data of each drill hole and perform mathematical analysis on the geological record data, each drill hole is connected according to a rule to obtain a specific distribution range of ore body and ore grade and distribution elements of ore body shape in the exploration area, and the purpose of ore body production exploration and production related requirements are achieved through statistical analysis of cone drilling return powder geological information.
A reverse drilling geological record and ore body delineation method for strip mines is already applied to the roller cone drilling and perforating operation of an open-pit mine of the Minicube mountain black trench mine for many years, and plays a great auxiliary role in serving daily production exploration and secondary delineation of ore bodies of the open-pit mine, guiding ore blending and quality management of the mine, making a mining plan and a production organization.
Claims (5)
1. A reverse drilling geological logging and ore body delineation method for strip mine is characterized by comprising the following steps:
step 1, substituting geological drilling equipment with roller cone drilling and perforating equipment for strip mine to perform geological production exploration;
step 2, in the process of drilling operation of the open-pit mine roller bit in the step 1, the return powder of an ore layer (rock stratum) is regularly deposited at an orifice of the roller bit;
step 3, sampling the return powder of the cone drill hole ore pile in the step 2, recording the rock core according to the thickness and grade change condition of the return powder deposition, and analyzing the reverse distribution rule of the return powder deposition phase
Step 4, reversely deducing occurrence thickness, ore layer occurrence element change, ore rock boundary position and ore geological grade change condition which can be deduced to be an ore body through ore powder stockpiling thickness and ore grade change rule;
and 5, repeating the steps 1 to 4 to obtain sampling data and core records of a plurality of roller bit drill holes, and completing secondary delineation of the ore body through a plurality of groups of sampling data and core records.
2. The method for geological logging and ore body delineation of open-pit mine reverse drilling according to claim 1, wherein in step 1, the roller drills are used for blasting perforation operation of the open-pit mine, the perforation mesh of the roller drills is selected from row spacing of 5m by 8m or 6m by 10m according to mine blasting design parameters for construction hole distribution, the perforation depth is set to be 16m according to the height of the open-pit mine step, and the inclination angle is selected to be 90 degrees.
3. The method for geological logging and ore body delineation of strip mine reverse drilling according to claim 1, wherein in step 2, the roller drill regularly deposits mineral powder around the orifice during the drilling operation, and is regarded as a core extracted by the core drill and used for secondary delineation of the ore body and discrimination of the ore grade.
4. The method for geological logging and ore body delineation by reverse drilling of an open-pit mine according to claim 1, wherein in steps 3 and 4, the distribution of the deposition phase from top to bottom through the roller cone return fines is exactly in reverse correspondence with the distribution of the ore body; calculating the thickness of an ore layer and a rock layer, namely the position of the ore and the position of the ore layer passing through the ore layer by measuring the deposition thickness of the returned powder and deducing a corresponding proportional coefficient with the depth of a drilled hole; the geological grade occurrence condition of the ore body at the position can be judged by sampling and testing the geology of the returned powder grade.
5. The method for geological logging and ore body delineation of open-pit mine reverse drilling according to claim 1, wherein in step 5, the steps 1 to 4 are repeated for each roller cone return powder to obtain geological logging data of each drilling hole, the geological logging data is subjected to mathematical analysis, and each drilling hole is connected according to rules to obtain specific distribution range of ore body and ore grade and distribution elements of ore body occurrence in the exploration area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110574599.XA CN113219550B (en) | 2021-05-25 | Strip mine reverse drilling geological logging and ore body delineating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110574599.XA CN113219550B (en) | 2021-05-25 | Strip mine reverse drilling geological logging and ore body delineating method |
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| CN113219550A true CN113219550A (en) | 2021-08-06 |
| CN113219550B CN113219550B (en) | 2024-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993759A (en) * | 2022-07-18 | 2022-09-02 | 核工业北京地质研究院 | Rock powder sampling method for radioactive mineral exploration |
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|---|---|---|---|---|
| CN101713278A (en) * | 2009-11-19 | 2010-05-26 | 江苏扬建集团有限公司 | Drilling pouring pile hole formation one-pile double-machine construction method |
| CN103093107A (en) * | 2013-01-25 | 2013-05-08 | 武汉工程大学 | Method used for single exploration engineering ore body boundary delineation |
| CN108254802A (en) * | 2018-01-11 | 2018-07-06 | 武志明 | A kind of technique for delineating on metalliferous deposit boundary influenced by secondary fragmentation construction |
| CN108425675A (en) * | 2018-04-11 | 2018-08-21 | 云南华联锌铟股份有限公司 | A kind of surface mine orebody shape is accurately positioned and the method for back production |
| CN211061240U (en) * | 2019-11-05 | 2020-07-21 | 伊春鹿鸣矿业有限公司 | Rock powder sampler for rotary drill rig of surface mine |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713278A (en) * | 2009-11-19 | 2010-05-26 | 江苏扬建集团有限公司 | Drilling pouring pile hole formation one-pile double-machine construction method |
| CN103093107A (en) * | 2013-01-25 | 2013-05-08 | 武汉工程大学 | Method used for single exploration engineering ore body boundary delineation |
| CN108254802A (en) * | 2018-01-11 | 2018-07-06 | 武志明 | A kind of technique for delineating on metalliferous deposit boundary influenced by secondary fragmentation construction |
| CN108425675A (en) * | 2018-04-11 | 2018-08-21 | 云南华联锌铟股份有限公司 | A kind of surface mine orebody shape is accurately positioned and the method for back production |
| CN211061240U (en) * | 2019-11-05 | 2020-07-21 | 伊春鹿鸣矿业有限公司 | Rock powder sampler for rotary drill rig of surface mine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993759A (en) * | 2022-07-18 | 2022-09-02 | 核工业北京地质研究院 | Rock powder sampling method for radioactive mineral exploration |
| CN114993759B (en) * | 2022-07-18 | 2022-10-25 | 核工业北京地质研究院 | Rock powder sampling method for radioactive mineral exploration |
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