CN104597224A - Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology - Google Patents
Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology Download PDFInfo
- Publication number
- CN104597224A CN104597224A CN201510042294.9A CN201510042294A CN104597224A CN 104597224 A CN104597224 A CN 104597224A CN 201510042294 A CN201510042294 A CN 201510042294A CN 104597224 A CN104597224 A CN 104597224A
- Authority
- CN
- China
- Prior art keywords
- water
- mine
- observation
- steady flow
- journey
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a three-drop distance non-steady flow dewatering test method for probing mine hydrogeology. According to the technical scheme of the invention for solving the problem, steady flow and non-steady flow dewatering tests are combined for a three-drop distance non-steady flow dewatering test; by implementing the dewatering test, the water storage property of a drainage water-bearing layer of a mine is evaluated based on the falling rate of water level of observation holes according to acquired test information; the watery property of the drainage water-bearing layer is evaluated by virtue of unit inflow of each drop distance and the draining property of the drainage water-bearing layer is evaluated according to a ratio of drawdown and the water inflow. The method not only can probe hydrogeological conditions of the mine in multiscales, but also can acquire abundant test data, and provides probability of establishing a mine inflow prediction model and predicting the mine inflow under a drainage water condition in the future by various methods such as a flow-drawdown correlation curve method, a steady flow analytical method, a non-steady flow analytical method and a numerical simulation method, thereby providing guarantee for correctly evaluating hydrogeological conditions of the mine.
Description
Technical field
The present invention relates to a kind of three of mine hydrogeology condition of detecting to fall journey unsteady fluid flow outflow test method, belong to mine shaft geology and detect field.
Background technology
Outflow test is one of effective ways detecting mine hydrogeology condition.It utilizes underworkings absolute altitude or the feature of drilling orifice absolute altitude lower than water-bearing zone water level elevation that discharge water, piestic water is flow automatically and pours in mine, the cone of depression taken on a certain scale in water-bearing zone, and disclose mine hydrogeology phenomenon with this, thus detect mine hydrogeology condition, prediction mine inflow.The outflow test carried out at present mostly is the unsteady fluid flow of the journey that singly falls, like this may limited due to coverage (particularly for karst fractured aquifer), all sidedly, multiple dimensionedly cannot detect mine hydrogeology condition; Water yield and reverse hydrogeological parameter can only be predicted by astable analytical method or Method for Numerical on the other hand, hydrogeological boundary condition may be faced with and not meet unsteady well flow condition, or it be complicated to set up numerical model process, makes calculating be difficult to carry out.
Summary of the invention
The present invention is directed to the outflow test used at present and detect the some shortcomings that mineral hydrological condition exists, propose three and to fall journey unsteady fluid flow outflow test method.
The technical scheme that the present invention solves the problem is as follows: steady flow combined with unsteady fluid flow outflow test, carries out three and to fall journey unsteady fluid flow outflow test.
1, arrange the journey waterdrainage amount that respectively falls on request, wherein the water yield sum of maximum waterdrainage amount and mine can not exceed mine drainage ability;
2, the order that discharges water should discharge water by first low discharge, then increases waterdrainage amount step by step.Waterdrainage amount should adopt Q
3=Q
max, Q
2=2/3Q
3, Q
1=1/3Q
3, wherein Q
maxfor the maximum waterdrainage amount that may reach;
3, arrange observation port on ground and down-hole, cloth hole wants evenly, especially to arrange 1-2 pressure tap near dewatering orifice simultaneously;
4, dewatering orifice flow, ground observation hole water level, testing pressure down hole hole hydraulic pressure want simultaneous observation.Observing frequency can be measured according to the time of 1min, 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, 12min, 14min, 16min, 18min, 20min, 25min, 30min, 40min, 50min, 60min, 70min, 80min, 90min, 100min, 110min, 120min after on-test, after this measures once every 30min;
5, outflow test reaches stable criterion: 1. static level and recovery water levelx, meets following condition for the moment, thinks and reach stable, can enter the next one and to fall the outflow test of journey or the observation in water level rezime stage.A, continuous three hours water levels are constant; When b, water level are unidirectional change, in continuous four hours, water level increasing degree per hour or the range of decrease are no more than 1cm; During the change of c, water level indentation, in continuous four hours, fluctuation in stage maximum difference is no more than 5cm; When d, the observation of employing tensimeter, within continuous eight hours, pointer is motionless.Do not reach above-mentioned requirements, but total observation time is as more than 72 hours, can stop observation.2. fluctuations in discharge amplitude is not more than 3%, fluctuations in discharge amplitude=(maximum difference/mean value of observed reading and mean value) × 100%.In stabilization time, fluctuations in discharge amplitude means in the upper and lower amplitude of beating of mean value.If flow difference meets the requirements, but flow duration curve be single direction continuous decrease or rise time, the outflow test time should extend more than 8 hours again.
By the enforcement of outflow test, according to the testing data obtained, adopt each observation port Water level fall quickly to evaluate the water storage in the unrestrained water-bearing zone of mine, adopt the journey specific capacity that respectively falls to evaluate the watery in unrestrained water-bearing zone, adopt drawdown and water yield ratio
evaluate the dredging property in unrestrained water-bearing zone.
The method not only multiple dimensionedly can detect mine hydrogeology condition, also can obtain abundant test figure simultaneously, this is for using the multiple method establishment Predicting The Hydraulic Discharge In Mine Shaft models such as flow-drawdown correlation curve method, steady flow analytical method, unsteady fluid flow analytical method, method for numerical simulation, predicting that the mine inflow under following mining conditions provides possibility, providing guarantee for correctly evaluating mine hydrogeology condition.
Embodiment
Hereinafter, will describe the present invention more fully now, show various embodiment.But the present invention can implement in many different forms, and should not be interpreted as being confined to embodiment set forth herein.On the contrary, provide these embodiments to make the disclosure will be thoroughly with completely, and scope of the present invention is conveyed to those skilled in the art fully.
Steady flow combines with unsteady fluid flow outflow test by the present invention, carries out three and to fall journey unsteady fluid flow outflow test.
1, arrange the journey waterdrainage amount that respectively falls on request, wherein the water yield sum of maximum waterdrainage amount and mine can not exceed mine drainage ability;
2, the order that discharges water should discharge water by first low discharge, then increases waterdrainage amount step by step.Waterdrainage amount should adopt Q
3=Q
max, Q
2=2/3Q
3, Q
1=1/3Q
3, wherein Q
maxfor the maximum waterdrainage amount that may reach;
3, arrange observation port on ground and down-hole, cloth hole wants evenly, especially to arrange 1-2 pressure tap near dewatering orifice simultaneously;
4, dewatering orifice flow, ground observation hole water level, testing pressure down hole hole hydraulic pressure want simultaneous observation.Observing frequency can be measured according to the time of 1min, 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, 12min, 14min, 16min, 18min, 20min, 25min, 30min, 40min, 50min, 60min, 70min, 80min, 90min, 100min, 110min, 120min after on-test, after this measures once every 30min;
5, outflow test reaches stable criterion: 1. static level and recovery water levelx, meets following condition for the moment, thinks and reach stable, can enter the next one and to fall the outflow test of journey or the observation in water level rezime stage.A, continuous three hours water levels are constant; When b, water level are unidirectional change, in continuous four hours, water level increasing degree per hour or the range of decrease are no more than 1cm; During the change of c, water level indentation, in continuous four hours, fluctuation in stage maximum difference is no more than 5cm; When d, the observation of employing tensimeter, within continuous eight hours, pointer is motionless.Do not reach above-mentioned requirements, but total observation time is as more than 72 hours, can stop observation.2. fluctuations in discharge amplitude is not more than 3%, fluctuations in discharge amplitude=(maximum difference/mean value of observed reading and mean value) × 100%.In stabilization time, fluctuations in discharge amplitude means in the upper and lower amplitude of beating of mean value.If flow difference meets the requirements, but duration curve be single direction continuous decrease or rise time, the outflow test time should extend more than 8 hours again.
By the enforcement of outflow test, according to the testing data obtained, adopt each observation port Water level fall quickly to evaluate the water storage in the unrestrained water-bearing zone of mine, adopt the journey specific capacity that respectively falls to evaluate the watery in unrestrained water-bearing zone, adopt drawdown and water yield ratio
evaluate the dredging property in unrestrained water-bearing zone.
The foregoing is only embodiments of the invention, be not limited to the present invention.The present invention can have various suitable change and change.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. detect three of mine hydrogeology to fall a journey unsteady fluid flow outflow test method, it is characterized in that:
Described method comprises the steps:
(1), arrange the journey waterdrainage amount that respectively falls, wherein the water yield sum of maximum waterdrainage amount and mine can not exceed mine drainage ability;
(2), discharge water order first low discharge discharge water, then increase waterdrainage amount step by step;
(3), on ground and down-hole arrange observation port, cloth hole wants evenly, to arrange 1-2 pressure tap near dewatering orifice simultaneously;
(4), dewatering orifice flow, ground observation hole water level, the hydraulic pressure simultaneous observation of testing pressure down hole hole;
(5), outflow test reaches stable criterion: 1. static level and recovery water levelx, meet following condition for the moment, think and reach stable, the fall outflow test of journey or the observation in water level rezime stage: a, continuous three hours water levels of the next one can be entered constant; When b, water level are unidirectional change, in continuous four hours, water level increasing degree per hour or the range of decrease are no more than 1cm; During the change of c, water level indentation, in continuous four hours, fluctuation in stage maximum difference is no more than 5cm; When d, the observation of employing tensimeter, within continuous eight hours, pointer is motionless; Do not reach above-mentioned requirements, but total observation time is as more than 72 hours, can stop observation; 2. fluctuations in discharge amplitude is not more than 3%, fluctuations in discharge amplitude=(maximum difference/mean value of observed reading and mean value) × 100%; In stabilization time, fluctuations in discharge amplitude means in the upper and lower amplitude of beating of mean value; If flow difference meets the requirements, but flow duration curve be single direction continuous decrease or rise time, the outflow test time should extend more than 8 hours again.
2. a kind of three of mine hydrogeology of detecting falls journey unsteady fluid flow outflow test method as claimed in claim 1, it is characterized in that:
Waterdrainage amount in described step (2) adopts Q
3=Q
max, Q
2=2/3Q
3, Q
1=1/3Q
3, wherein Q
maxfor the maximum waterdrainage amount that may reach.
3. a kind of three of mine hydrogeology of detecting falls journey unsteady fluid flow outflow test method as claimed in claim 1 or 2, it is characterized in that:
The frequency of the described observation in step (4) was measured according to the time of 1min, 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, 12min, 14min, 16min, 18min, 20min, 25min, 30min, 40min, 50min, 60min, 70min, 80min, 90min, 100min, 110min, 120min after on-test, after this measured once every 30min.
4. a kind of three of mine hydrogeology of detecting falls journey unsteady fluid flow outflow test method as claimed in claim 1 or 2, it is characterized in that:
By the enforcement of outflow test, according to the testing data obtained, adopt each observation port Water level fall quickly to evaluate the water storage in the unrestrained water-bearing zone of mine, adopt the journey specific capacity that respectively falls to evaluate the watery in unrestrained water-bearing zone, adopt drawdown and water yield ratio
evaluate the dredging property in unrestrained water-bearing zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042294.9A CN104597224A (en) | 2015-01-27 | 2015-01-27 | Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042294.9A CN104597224A (en) | 2015-01-27 | 2015-01-27 | Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104597224A true CN104597224A (en) | 2015-05-06 |
Family
ID=53123143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510042294.9A Pending CN104597224A (en) | 2015-01-27 | 2015-01-27 | Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104597224A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285777A (en) * | 2016-10-28 | 2017-01-04 | 河北钢铁集团矿业有限公司 | The method that flood mine mineral building discharges water in advance |
| CN108256197A (en) * | 2018-01-10 | 2018-07-06 | 四川大学 | The determining method of water body residence time in energy dissipation tank |
| CN109184663A (en) * | 2018-10-11 | 2019-01-11 | 中煤科工集团西安研究院有限公司 | A method of drilling specific capacity is obtained using outflow test |
| CN109882158A (en) * | 2019-03-20 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | Drill-hole pumping water level test method and drilling water level test device |
| CN111577382A (en) * | 2020-04-14 | 2020-08-25 | 河北昕佳工程勘查设计有限公司 | Water damage prevention and comprehensive water resource utilization method for karst big water iron mine in Hebei Handan chen region |
| CN113050190A (en) * | 2021-03-03 | 2021-06-29 | 河北益坤岩土工程新技术有限公司 | Intelligent calculation method for hydrogeological parameters of unstable flow pumping test of linear boundary |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4249248B1 (en) * | 2008-07-07 | 2009-04-02 | リブコンエンジニアリング株式会社 | A method for calculating the surface adsorbed water ratio of an aggregate in a centrifugal dehydration test, and a method for producing mortar or concrete using the aggregate obtained by this calculation method. |
| CN101620275A (en) * | 2009-08-12 | 2010-01-06 | 中国煤炭地质总局水文地质局 | Hydrogeololgic comprehensive prospecting method for coal deposit |
| CN102003175A (en) * | 2010-11-12 | 2011-04-06 | 中铁第四勘察设计院集团有限公司 | Method for forecasting water inflow of railway karst tunnel water filling cavity through dewatering test method |
| WO2012130320A1 (en) * | 2011-03-31 | 2012-10-04 | The Safer Plug Company Limited | An autonomous pipeline buckle arresting isolation tool |
-
2015
- 2015-01-27 CN CN201510042294.9A patent/CN104597224A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4249248B1 (en) * | 2008-07-07 | 2009-04-02 | リブコンエンジニアリング株式会社 | A method for calculating the surface adsorbed water ratio of an aggregate in a centrifugal dehydration test, and a method for producing mortar or concrete using the aggregate obtained by this calculation method. |
| CN101620275A (en) * | 2009-08-12 | 2010-01-06 | 中国煤炭地质总局水文地质局 | Hydrogeololgic comprehensive prospecting method for coal deposit |
| CN102003175A (en) * | 2010-11-12 | 2011-04-06 | 中铁第四勘察设计院集团有限公司 | Method for forecasting water inflow of railway karst tunnel water filling cavity through dewatering test method |
| WO2012130320A1 (en) * | 2011-03-31 | 2012-10-04 | The Safer Plug Company Limited | An autonomous pipeline buckle arresting isolation tool |
Non-Patent Citations (3)
| Title |
|---|
| 唐辉: "河南平禹一矿岩溶水疏降流场数值模拟与预测", 《中国优秀硕士学位论文全文数据库基础科学辑》 * |
| 孙子正: "矿山阻水帷幕薄弱带综合分析方法与治理技术", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 潘国营等: "基于群孔大型放水试验的寒灰水疏放可行性研究", 《河南理工大学学报( 自然科学版)》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285777A (en) * | 2016-10-28 | 2017-01-04 | 河北钢铁集团矿业有限公司 | The method that flood mine mineral building discharges water in advance |
| CN106285777B (en) * | 2016-10-28 | 2018-05-08 | 河北钢铁集团矿业有限公司 | The method that flood mine mineral building discharges water in advance |
| CN108256197A (en) * | 2018-01-10 | 2018-07-06 | 四川大学 | The determining method of water body residence time in energy dissipation tank |
| CN108256197B (en) * | 2018-01-10 | 2021-10-22 | 四川大学 | Method for determining residence time of water body in energy dissipation pool |
| CN109184663A (en) * | 2018-10-11 | 2019-01-11 | 中煤科工集团西安研究院有限公司 | A method of drilling specific capacity is obtained using outflow test |
| CN109184663B (en) * | 2018-10-11 | 2022-02-08 | 中煤科工集团西安研究院有限公司 | Method for acquiring unit water inflow of drilling hole by using water discharge test |
| CN109882158A (en) * | 2019-03-20 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | Drill-hole pumping water level test method and drilling water level test device |
| CN109882158B (en) * | 2019-03-20 | 2023-03-14 | 中煤科工集团西安研究院有限公司 | Drilling water pumping level testing method and drilling water level testing device |
| CN111577382A (en) * | 2020-04-14 | 2020-08-25 | 河北昕佳工程勘查设计有限公司 | Water damage prevention and comprehensive water resource utilization method for karst big water iron mine in Hebei Handan chen region |
| CN113050190A (en) * | 2021-03-03 | 2021-06-29 | 河北益坤岩土工程新技术有限公司 | Intelligent calculation method for hydrogeological parameters of unstable flow pumping test of linear boundary |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104597224A (en) | Three-drop distance non-steady flow dewatering test method for probing mine hydrogeology | |
| CN103902827B (en) | Flow unit division method of carbonate-rock horizontal wells | |
| CN110580655A (en) | Method and system for predicting coal mine water inflow based on LSTM algorithm | |
| CN104899358B (en) | The Forecasting Methodology of Ordovician limestone karst crevice water network cross direction profiles | |
| CN107895092B (en) | Inter-well communication quantitative evaluation method based on complex nonlinear injection-production modeling | |
| CN104863577A (en) | Method for forecasting formation pore pressure by utilizing propagation time of seismic longitudinal waves | |
| CN104500054A (en) | Method and device for determining formation pore pressure | |
| CN109190854B (en) | Method for predicting water inflow of working surface by multi-factor comparison of water filling of bottom plate | |
| CN111379562B (en) | Water-controlled coal mining method and device under composite water body | |
| CN111119992B (en) | Method for determining drilling parameters of drainage water of coal seam roof | |
| CN109184663B (en) | Method for acquiring unit water inflow of drilling hole by using water discharge test | |
| CN112948924A (en) | Near unconsolidated formation mining water flowing fractured zone height determination method based on overlying strata structure | |
| CN204371324U (en) | The determining device of formation pore pressure | |
| CN109723424B (en) | Method for predicting water discharge amount of underground drilling | |
| Rafiei | Improved oil production and waterflood performance by water allocation management | |
| CN112734162B (en) | Method for evaluating influence degree of coal mining face on shallow groundwater | |
| CN110700884B (en) | Method for analogizing and predicting water inflow of fully mechanized caving face based on analytical method | |
| Martinez et al. | Use of numerical groundwater modelling for mine dewatering assessment | |
| Han et al. | Understanding Well Performance of Unconventional Extended Laterals in New Mexico, Delaware Basin | |
| Du et al. | Spatial and Temporal Distribution of Groundwater in Open-Pit Coal Mining: A Case Study from Baorixile Coal Mine, Hailaer Basin, China | |
| Baiocchi et al. | Hard-rock aquifer response to pumping and sustainable yield of wells in some areas of Mediterranean Region | |
| Wu et al. | Three step-drawdown dewatering test in unsteady flow condition: a case study of the Siwan coal mine in North China Coalfield | |
| Brassington et al. | A comparison of field methods used to define saline-fresh groundwater interfaces at two sites in North West England | |
| CN113537668B (en) | Method and system for evaluating crude oil geological reserves in unfilled karst cave | |
| Parra et al. | CRM-Aquifer-Fractional Flow Model to Characterize Oil Reservoirs with Natural Water Influx |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |