CN109162716A - The method of opencut pick ditch - Google Patents
The method of opencut pick ditch Download PDFInfo
- Publication number
- CN109162716A CN109162716A CN201810865513.7A CN201810865513A CN109162716A CN 109162716 A CN109162716 A CN 109162716A CN 201810865513 A CN201810865513 A CN 201810865513A CN 109162716 A CN109162716 A CN 109162716A
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- China
- Prior art keywords
- higher slice
- lower leaf
- opencut
- main access
- ditch
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/26—Methods of surface mining; Layouts therefor
- E21C41/30—Methods of surface mining; Layouts therefor for ores, e.g. mining placers
Abstract
The present invention provides a kind of methods of opencut pick ditch, comprising: the step of the opencut is divided into higher slice and lower leaf；Higher slice main access, higher slice pioneer cut are tunneled, higher slice is carried out and expands side operation；Lower leaf main access, lower leaf pioneer cut are tunneled, lower leaf is carried out and expands side operation, while carrying out higher slice and adopting stripping operation；Simultaneously carry out higher slice adopt stripping operation and lower leaf adopt stripping operation；The higher slice merges with the lower leaf, forms complete step main access and stair working line.According to the technical solution of the present invention, pick ditch operation is implemented in two stages, reduce Dig gutter works amount 20%~40%, the New level preparation time is reduced, working face implementation can be formed during New level preparation and adopt stripping operation, the convention for having broken pick ditch, having expanded side, adopting stripping sequential analysis, mine initial stage is set to form Multi-working-surface operation as early as possible, so that mine is reached production as early as possible, and mine stable production period can be extended, avoids the too early underproduction.
Description
Technical field
The present invention relates to mining technique fields, in particular to a kind of method of opencut pick ditch.
Background technique
New level preparation is surface mine deepening and continually and steadily produces the exploitation preparation work that must be carried out, and mainly includes
Expansion helper's journey needed for tunneling main access, pioneer cut and tunneling main access for next New level preparation, is limited by working space,
Can advancing equipment it is limited, with normally adopt stripping operation compared with, dig ditch operation when device efficiency reduce about 30%, surface mine dig trench culture
Industry becomes the main projects of New level preparation, New level preparation it is timely whether, key is to dig ditch speed, digs ditch speed
It largely determines strip mining transformation intensity, and influences capacity of surfacemine therewith.
Currently, surface mine digs ditch based on Automobile Transportation pick ditch, common to dig ditch side due to Automobile Transportation maneuverability
Formula has tunneling boring pick ditch and layering pick ditch, and the common ground of two kinds of pick ditch modes is the discrepancy for being both needed to be initially formed that depth is step height
Then ditch, pioneer cut start to expand side operation, start normally to adopt stripping operation after completing New level preparation.
Existing pick ditch process engineering amount is big, the sequence that new height follows strictly pick ditch, expands side, adopts stripping operation, raw in mine
At production initial stage, the time for forming two-stage mine amount is long, cannot quickly form Multi-working-surface operation, causes mine equipment component idle, from
Going into operation, it is long to reach the production duration；In the mining production middle and later periods, be layered mine amount and reduce, year decrease speed it is limited, cause mine mistake
The early underproduction, the duration is long, or even generates the upper step predicament unfinished by side, lower part New level preparation, cannot ensure production
It can connect, significantly impact mine economic profit.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the object of the present invention is to provide a kind of methods of opencut pick ditch.
In view of this, the technical solution of first aspect present invention provides a kind of method of opencut pick ditch, comprising: by institute
The step for stating opencut is divided into higher slice and lower leaf；Higher slice main access, higher slice pioneer cut are tunneled, higher slice is carried out and expands side
Operation；Lower leaf main access, lower leaf pioneer cut are tunneled, lower leaf is carried out and expands side operation, while carrying out higher slice and adopting stripping operation；
Simultaneously carry out higher slice adopt stripping operation and lower leaf adopt stripping operation；The higher slice merges with the lower leaf, is formed complete
Step main access and stair working line.
Preferably, higher slice main access end depth and the higher slice pioneer cut depth are the step height
1/2.
Preferably, the expansion side advance distance of the higher slice need to reach the space of arrangement lower leaf main access position.
Preferably, lower leaf main access end depth and the lower leaf pioneer cut depth are the step height
1/2.
Preferably, the height of the higher slice is 5m~8m, and the height of the lower leaf is 5m~8m.
Preferably, the higher slice pioneer cut length is 150~200m, and the lower leaf pioneer cut length is 50~80m.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
(1) pick ditch operation is implemented in two stages, reduces Dig gutter works amount 20%~40%, reduces the New level preparation time；
(2) working face implementation can be formed during New level preparation and adopts stripping operation, broken pick ditch, expanded side, adopt stripping sequence
The convention of operation enables mine initial stage to form Multi-working-surface operation as early as possible, when so that mine is reached production as early as possible, and can extend mine stable yields
Between, avoid the too early underproduction；
(3) pick trench depth and blast hole depth are reduced, the clamping action for closing on ditch slope surface shot hole blasting is reduced, reduces explosive list
Consumption reduces pick ditch cost.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the flow diagram of the method for opencut pick ditch according to an embodiment of the invention；
Fig. 2 shows the first stage higher slice discrepancy of the method for opencut according to an embodiment of the invention pick ditch
Ditch, pioneer cut plan view.
The first stage higher slice that Fig. 3 shows the method for opencut pick ditch according to an embodiment of the invention expands side
Engineering plan.
The second stage lower leaf that Fig. 4 shows the method for opencut pick ditch according to an embodiment of the invention enters and leaves
Ditch, pioneer cut plan view.
Side is expanded in the second stage lower leaf that Fig. 5 shows the method for opencut pick ditch according to an embodiment of the invention
Engineering plan.
The pick ditch technique that Fig. 6 shows the method for opencut pick ditch according to an embodiment of the invention is layered above and below
It promotes and merges figure.
10 higher slice main access, 20 higher slice pioneer cuts, 30 higher slices, which expand, to be helped, 40 lower leaf main access positions, and 50 lower points
Layer main access, 60 lower leaf pioneer cuts, 70 higher slices adopt stripping active line, and side, 90 step main access, 100 steps are expanded in 80 lower leafs
Active line.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
As shown in Figures 1 to 6, the method for the opencut pick ditch of embodiment according to the present invention, comprising:
The step of opencut is divided into higher slice and lower leaf by step S102；
Step S104 tunnels higher slice main access 10, higher slice pioneer cut 20, carries out higher slice and expands 30 operations of side；
Step S106 tunnels lower leaf main access 50, lower leaf pioneer cut 60；
Step S108 carries out lower leaf and expands 80 operations of side, while carrying out higher slice and adopting stripping operation；
Step S110, at the same carry out higher slice adopt stripping operation and lower leaf adopt stripping operation；
Step S112, higher slice merge with lower leaf, form complete step main access 90 and stair working line 100.
Preferably, 10 end depth of higher slice main access and 20 depth of higher slice pioneer cut are the 1/2 of step height.
Preferably, the expansion side advance distance of higher slice need to reach the space of arrangement 50 position 40 of lower leaf main access.
Preferably, 50 end depth of lower leaf main access and 60 depth of lower leaf pioneer cut are the 1/2 of step height.
Preferably, the height of higher slice is 5m~8m, and the height of lower leaf is 5m~8m.
Preferably, 20 length of higher slice pioneer cut is 150~200m, and 60 length of lower leaf pioneer cut is 50~80m.
Open pit bench is divided into upper and lower two layerings, surface mine pick ditch operation is carried out in two stages, is embodied
Process is as follows:
Successively tunnel higher slice main access 10, higher slice pioneer cut 20,10 end depth of higher slice main access and higher slice
20 depth of pioneer cut is the 1/2 of step height, for dig ditch operation first stage, as shown in Figure 2；
As shown in figure 3, carrying out higher slice expands 30 operations of side, arrangement lower leaf main access 50 need to be reached by expanding side advance distance
Set 40 space；
As described in Figure 4, lower leaf main access 50, lower leaf pioneer cut 60 are successively tunneled, 50 end of lower leaf main access is deep
Degree and 60 depth of lower leaf pioneer cut are the 1/2 of step height, and for the second stage for digging ditch operation, higher slice has just at this time
Stripping operating condition is often adopted, higher slice is formed and adopts stripping active line 70；
As shown in figure 5,80 operations of side are expanded in lower leaf, higher slice continues to adopt stripping operation；
As shown in fig. 6, upper and lower layering is provided with and adopts stripping operating condition, while carrying out adopting stripping operation, upper and lower layering is adjusted
Active line direction of propulsion and speed realize that upper and lower layering merges, form complete step main access 90 and stair working line 100.
Technical solution of the present invention is described with reference to the drawings above, according to the technical solution of the present invention, pick ditch operation is divided to two
Stage implements, and reduces Dig gutter works amount 20%~40%, reduces the New level preparation time；Work can be formed during New level preparation
Make face to implement to adopt stripping operation, the convention for having broken pick ditch, having expanded side, adopting stripping sequential analysis enables mine initial stage to form multiplexing as early as possible
Make face operation, so that mine is reached production as early as possible, and mine stable production period can be extended, avoid the too early underproduction；Reduce pick trench depth and blasthole
Depth reduces the clamping action for closing on ditch slope surface shot hole blasting, reduces explosive specific charge, reduces pick ditch cost.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method of opencut pick ditch characterized by comprising
The step of the opencut is divided into higher slice and lower leaf；
Higher slice main access, higher slice pioneer cut are tunneled, higher slice is carried out and expands side operation；
Tunnel lower leaf main access, lower leaf pioneer cut；
It carries out lower leaf and expands side operation, while carrying out higher slice and adopting stripping operation；
Simultaneously carry out the higher slice adopt stripping operation and lower leaf adopt stripping operation；
The higher slice merges with the lower leaf, forms complete step main access and stair working line.
2. the method for opencut pick ditch according to claim 1, which is characterized in that higher slice main access end depth
It is the 1/2 of the step height with the higher slice pioneer cut depth.
3. the method for opencut pick ditch according to claim 1, which is characterized in that advance distance is helped in the expansion of the higher slice
Reach the space of arrangement lower leaf main access position.
4. the method for opencut pick ditch according to claim 3, which is characterized in that lower leaf main access end depth
It is the 1/2 of the step height with the lower leaf pioneer cut depth.
5. the method for opencut according to claim 4 pick ditch, which is characterized in that the height of the higher slice be 5m~
8m, the height of the lower leaf are 5m~8m.
6. the method for opencut according to claim 1 pick ditch, which is characterized in that the higher slice pioneer cut length is
150~200m, the lower leaf pioneer cut length are 50~80m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865513.7A CN109162716B (en) | 2018-08-01 | 2018-08-01 | Method for trenching open-pit mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865513.7A CN109162716B (en) | 2018-08-01 | 2018-08-01 | Method for trenching open-pit mine |
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| Publication Number | Publication Date |
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| CN109162716A true CN109162716A (en) | 2019-01-08 |
| CN109162716B CN109162716B (en) | 2020-02-07 |
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| CN201810865513.7A Active CN109162716B (en) | 2018-08-01 | 2018-08-01 | Method for trenching open-pit mine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184696A (en) * | 2018-11-01 | 2019-01-11 | 中钢集团马鞍山矿山研究院有限公司 | A kind of New level preparation method improving opencut deep mining year decrease speed |
| CN111852555A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Trenching method for one-time blasting layered shovel loading of large water inrush sunken strip mine |
| CN111852553A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
| CN112112651A (en) * | 2020-11-03 | 2020-12-22 | 马钢集团设计研究院有限责任公司 | Continuous mining system and section descending process for hillside open-pit mine |
| CN112267886A (en) * | 2020-10-20 | 2021-01-26 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for mining and transporting strip mine |
| CN112796760A (en) * | 2021-04-13 | 2021-05-14 | 中煤科工能源科技发展有限公司 | Strip mine non-stripping mining method, device and system using side slope coal mining machine |
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| US4227574A (en) * | 1979-01-08 | 1980-10-14 | Occidental Oil Shale, Inc. | Locating the top of an in situ oil shale retort for ease of ignition |
| CN105275471A (en) * | 2015-11-09 | 2016-01-27 | 安徽马钢工程技术集团有限公司 | Method for determining surface mine exploiting limit |
| CN106022639A (en) * | 2016-06-01 | 2016-10-12 | 鞍钢集团矿业公司 | Mining and stripping cooperative method of determining deep open pit expansion stable production transition depth |
| CN106869935A (en) * | 2017-04-21 | 2017-06-20 | 长沙有色冶金设计研究院有限公司 | A kind of two-way pick ditch method of opencut |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4227574A (en) * | 1979-01-08 | 1980-10-14 | Occidental Oil Shale, Inc. | Locating the top of an in situ oil shale retort for ease of ignition |
| CN105275471A (en) * | 2015-11-09 | 2016-01-27 | 安徽马钢工程技术集团有限公司 | Method for determining surface mine exploiting limit |
| CN106022639A (en) * | 2016-06-01 | 2016-10-12 | 鞍钢集团矿业公司 | Mining and stripping cooperative method of determining deep open pit expansion stable production transition depth |
| CN106869935A (en) * | 2017-04-21 | 2017-06-20 | 长沙有色冶金设计研究院有限公司 | A kind of two-way pick ditch method of opencut |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184696A (en) * | 2018-11-01 | 2019-01-11 | 中钢集团马鞍山矿山研究院有限公司 | A kind of New level preparation method improving opencut deep mining year decrease speed |
| CN111852555A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Trenching method for one-time blasting layered shovel loading of large water inrush sunken strip mine |
| CN111852553A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
| CN111852553B (en) * | 2020-07-06 | 2021-08-03 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
| CN111852555B (en) * | 2020-07-06 | 2021-08-03 | 紫金矿业集团股份有限公司 | Trenching method for one-time blasting layered shovel loading of large water inrush sunken strip mine |
| CN112267886A (en) * | 2020-10-20 | 2021-01-26 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for mining and transporting strip mine |
| CN112112651A (en) * | 2020-11-03 | 2020-12-22 | 马钢集团设计研究院有限责任公司 | Continuous mining system and section descending process for hillside open-pit mine |
| CN112796760A (en) * | 2021-04-13 | 2021-05-14 | 中煤科工能源科技发展有限公司 | Strip mine non-stripping mining method, device and system using side slope coal mining machine |
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| Publication number | Publication date |
|---|---|
| CN109162716B (en) | 2020-02-07 |
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