CN109142095A - The shear index detection device and control method of a kind of mining junkyard and debris dam - Google Patents
The shear index detection device and control method of a kind of mining junkyard and debris dam Download PDFInfo
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- CN109142095A CN109142095A CN201811257891.3A CN201811257891A CN109142095A CN 109142095 A CN109142095 A CN 109142095A CN 201811257891 A CN201811257891 A CN 201811257891A CN 109142095 A CN109142095 A CN 109142095A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
Present invention relates particularly to a kind of mining junkyard and the shear index detection devices and control method of debris dam, belong to field geology detection field.The equipment includes seismic detector, wave detector and excitation component；The described method includes: 1) arrange detection device according to field condition；2) excitation-detection equipment carries out data analysis；3) test specimen is made；4) shear index detection is carried out to test specimen；5) shear index is obtained according to testing result.The present invention can carry out accurately layering shear index detection to irregular rubble accumulation body is accumulated；Layered weighting reduces the time of day of rubble accumulation body to greatest extent, and gained detection data is reliable；Loading material used easily obtains, and is available locally.
Description
Technical field
The invention belongs to field geology detection fields, and in particular to a kind of detection of the shear index of mining junkyard and debris dam is set
Standby and control method.
Background technique
Conventional method is only capable of examining superficial part gravelly soil when carrying out shear index detection to mining junkyard and debris dam
It surveys, and represents the shear index of entire rubble accumulation body with this index, it is not only too general in this way, take a part for the whole, and right
The practical directive significance of engineering is little.
It is, therefore, desirable to provide a kind of more accurate, applicable shear index detection method, to solve the above problems.
Summary of the invention
For the above technical problems, the present invention provides a kind of mining junkyard and the shear index detection of debris dam is set
It is standby, comprising: seismic detector, wave detector and excitation component；
The seismic detector is arranged in the test point of rubble accumulation body；
The wave detector has several, prolongs the detection that geophysical profile direction equidistant placement has identical quantity in seismic detector two sides
Device, and connect respectively with seismic detector；The spacing of adjacent 2 wave detectors of seismographic the same side is road spacing, real according to scene
Depending on the situation of border；
The excitation component includes activation plate and hits vibration hammer；
The activation plate is arranged on rubble accumulation body, is offset distance with the spacing apart from nearest wave detector, according to existing
Depending on the actual conditions of field.
The seismic detector uses Miniseis24 pattern synthesis engineering seismograph.
The control method of the shear index detection device of a kind of mining junkyard and debris dam, using above-mentioned mining junkyard and rubble
The shear index detection device on dam, comprising the following steps:
Step 1, several geophysical profiles, and clear test point are arranged at test；
Seismic detector is set at any test point；
Prolong the wave detector of the identical quantity of geophysical profile direction equidistant placement in seismic detector two sides, road spacing is real according to scene
Depending on the situation of border, it is connected by data cable with seismic detector；
The road spacing is the spacing of adjacent 2 wave detectors of seismic detector the same side；
The activation plate is arranged on rubble accumulation body, is offset distance with the spacing apart from nearest wave detector, according to
Depending on on-site actual situations；
Step 2, using vibration hammer hammering activation plate is hit, the Rayleigh of certain frequency range is generated with the lower half-space to surrounding ground
Wave converges to seismic detector through wave detector and data cable, is analyzed；
In analytic process, rubble accumulation body is layered using the Surface Wave Method that R wave is tested, that is, utilizes different wave length
R wave penetration depth it is different, R wave data are carried out relevant calculation by the different feature of different Propagation speed,
It obtains the rayleigh wave velocity value at rubble accumulation body different depth, and then determines top-down compactness and carrying at test point
Power situation, to be layered to rubble accumulation body；
Step 3, test specimen is made；
The layering that foundation step 2 obtains is as a result, carry out excavation of testing pits to each layer, and clean out the workbench of this layer；
It is needed according to scene actual use, is cut into several approximate square blanks in workbench；
Manual amendment is carried out to each blank using tools such as knife, prickers, test specimen is used as after the completion of finishing, adds wood in its appearance
Template carries out surface floating with cement mortar, is tested after maintenance to some strength；
Step 4, shear index detection is carried out to test specimen；
Step 4.1, in one load of the upper surface upper press cover of each test specimen, pressure at right angle is provided for test specimen；
The load is above the cabinet of test specimen upper surface using the length × width × height of bottom surface；
Rubble is stacked in the cabinet, forms 4 grades of loads that gross weight is respectively 300kg, 600kg, 900kg and 1200kg；
Step 4.2, jack is set between the side of test specimen and rubble accumulation body, provides horizontal shear force for test specimen；
Gradually apply horizontal shear force by each test specimen side of jack pair, records each test specimen and be sheared destruction when institute
Corresponding jack pressure meter reading and its load situation, as testing result；
Step 5, shear index is obtained according to testing result；
The pressure at right angle N that load is generated is scaled normal stress σ as abscissa compared with compression area；Similarly will
Jack pressure apparently surveys the data obtained Q compared with compression area, is scaled tangential stress τ as ordinate；It is fixed according to coulomb
Rule is depicted as curve, i.e.,You can get it Shear Strength Index c,Value.
In the analytic process of the step 2, rubble accumulation body is layered using the Surface Wave Method that R wave is tested, i.e., it is sharp
Different, the different feature of different Propagation speed with the R wave penetration depth of different wave length, by R wave data into
Row relevant calculation obtains the rayleigh wave velocity value at rubble accumulation body different depth, and then determines top-down at test point
Compactness and bearing capacity situation, to be layered to rubble accumulation body.
The blank quantity is 4.
The length × width × height of the blank is not less than 60cm.
The length × width × height of the test specimen is 50cm × 50cm × 50cm, and the compression area is 0.25m2。
Beneficial effects of the present invention:
The present invention proposes the shear index detection device and control method of a kind of mining junkyard and debris dam, can be random to accumulating
The rubble accumulation body of rule carries out accurately layering shear index detection；Layered weighting reduces rubble accumulation body to greatest extent
Time of day, gained detection data are reliable；Loading material used easily obtains, and is available locally.
The present invention has rational design, it is easy to accomplish, there is good practical value.
Detailed description of the invention
Fig. 1 is that the structure of the shear index detection device of mining junkyard described in the specific embodiment of the invention and debris dam is shown
It is intended to；
Fig. 2-Fig. 4 is the layout drawing of test specimen and jack described in the specific embodiment of the invention.
In figure: 1, seismic detector；2, wave detector；3, rubble accumulation body；4, activation plate；5, vibration hammer is hit；6, test specimen；7, very heavy
Top；8, jack pressure table.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and embodiment,
Further description is made to the present invention.It should be appreciated that described herein, specific examples are only used to explain the present invention, and
It is not used in the restriction present invention.
The present invention proposes the shear index detection device of a kind of mining junkyard and debris dam, as shown in Figure 1, include seismic detector 1,
Wave detector 2 and excitation component；
The seismic detector 1 is arranged in the test point of rubble accumulation body 3；
The wave detector 2 has several, prolongs the inspection that geophysical profile direction equidistant placement has identical quantity in 1 two sides of seismic detector
Wave device 2, and connect respectively with seismic detector 1；The spacing of adjacent 2 wave detectors 2 of the same side of seismic detector 1 is road spacing, foundation
Depending on on-site actual situations；
The excitation component includes activation plate 4 and hits vibration hammer 5；
The activation plate 4 is arranged on rubble accumulation body 3, is offset distance, foundation with the spacing apart from nearest wave detector 2
Depending on on-site actual situations；
In the present embodiment, the seismic detector 1 uses Miniseis24 pattern synthesis engineering seismograph；
The present invention proposes a kind of control method of the shear index detection device of mining junkyard and debris dam, using above-mentioned row
The shear index detection device of rock field and debris dam, comprising the following steps:
Step 1, several geophysical profiles, and clear test point are arranged at test；
Seismic detector 1 is set at any test point；
Prolong the wave detector 2 of the identical quantity of geophysical profile direction equidistant placement in 1 two sides of seismic detector, road spacing is according to scene
Depending on actual conditions, it is connected by data cable with seismic detector 1；
The road spacing is the spacing of adjacent 2 wave detectors 2 of 1 the same side of seismic detector；
The activation plate 4 is arranged on rubble accumulation body 3, is offset distance with the spacing apart from nearest wave detector 2,
According to depending on on-site actual situations；
Step 2, using the hammering activation plate 4 of vibration hammer 5 is hit, the auspicious of certain frequency range is generated with the lower half-space to surrounding ground
Sharp wave converges to seismic detector 1 through wave detector 2, is analyzed；
In analytic process, rubble accumulation body 3 is layered using the Surface Wave Method that R wave is tested, that is, utilizes different wave length
R wave penetration depth it is different, R wave data are carried out relevant calculation by the different feature of different Propagation speed,
It obtains the rayleigh wave velocity value at 3 different depth of rubble accumulation body, and then determines top-down compactness at test point and hold
Power situation is carried, to be layered to rubble accumulation body 3；
Step 3, test specimen 6 is made；
The layering that foundation step 2 obtains is as a result, carry out excavation of testing pits to each layer, and clean out the workbench of this layer；
It is needed according to scene actual use, is cut into several approximate square blanks in workbench；
In the present embodiment, the blank quantity is 4, in identical embodiment, the quantity according to on-site actual situations and
It is fixed；
Manual amendment is carried out to each blank using tools such as knife, prickers, test specimen 6 is used as after the completion of finishing, adds in its appearance
Plank sheathing carries out surface floating with cement mortar, is tested after maintenance to some strength；
In the present embodiment, the length × width × height of the blank is not less than 60cm, and in identical embodiment, which can be according to
Depending on rubble body actual particle size situation；
In the present embodiment, the length × width × height of the test specimen 6 is 50cm × 50cm × 50cm, should in identical embodiment
Depending on size can be according to rubble body actual particle size situation；
Step 4, as shown in figs 2-4, shear index detection is carried out to test specimen 6；
Step 4.1, in one load of upper surface upper press cover of each test specimen 6, pressure at right angle is provided for test specimen 6；
The load is above the cabinet of 6 upper surface of test specimen using the length × width × height of bottom surface；
Rubble is stacked in the cabinet, forms 4 grades of loads that gross weight is respectively 300kg, 600kg, 900kg and 1200kg；
Step 4.2, jack 7 is set between the side of test specimen 6 and rubble accumulation body 3, provides horizontal shear for test specimen 6
Power；
Horizontal shear force is gradually applied to each 6 side of test specimen by jack 7, each test specimen 6 is recorded and is sheared destruction
When the corresponding reading of jack pressure table 8 and its load situation, as testing result；
Step 5, shear index is obtained according to testing result；
The pressure at right angle N that load is generated is scaled normal stress σ as abscissa compared with compression area；Similarly will
Jack pressure table 8 observes the data obtained Q compared with compression area, is scaled tangential stress τ as ordinate；It is fixed according to coulomb
Rule is depicted as curve, i.e.,You can get it Shear Strength Index c,Value；
In the present embodiment, the compression area is 0.25m2。
Claims (7)
1. the shear index detection device of a kind of mining junkyard and debris dam characterized by comprising seismic detector, wave detector and swash
Send out component；
The seismic detector is arranged in the test point of rubble accumulation body；
The wave detector has several, prolongs the wave detector that geophysical profile direction equidistant placement has identical quantity in seismic detector two sides,
And it is connect respectively with seismic detector；The spacing of adjacent 2 wave detectors of seismographic the same side is road spacing, according to the practical feelings in scene
Depending on condition；
The excitation component includes activation plate and hits vibration hammer；
The activation plate is arranged on rubble accumulation body, is offset distance with the spacing apart from nearest wave detector, real according to scene
Depending on the situation of border.
2. the shear index detection device of mining junkyard according to claim 1 and debris dam, which is characterized in that the earthquake
Instrument uses Miniseis24 pattern synthesis engineering seismograph.
3. a kind of control method of the shear index detection device of mining junkyard and debris dam, which is characterized in that use claim 1
The shear index detection device of the mining junkyard and debris dam, comprising the following steps:
Step 1, several geophysical profiles, and clear test point are arranged at test；
Seismic detector is set at any test point；
Prolong the wave detector of the identical quantity of geophysical profile direction equidistant placement in seismic detector two sides, road spacing is according to the practical feelings in scene
Depending on condition, it is connected by data cable with seismic detector；
The road spacing is the spacing of adjacent 2 wave detectors of seismic detector the same side；
The activation plate is arranged on rubble accumulation body, is offset distance with the spacing apart from nearest wave detector, according to existing
Depending on the actual conditions of field；
Step 2, using vibration hammer hammering activation plate is hit, the R wave of certain frequency range is generated with the lower half-space to surrounding ground,
It converges through wave detector and data cable to seismic detector, is analyzed；
In analytic process, rubble accumulation body is layered using the Surface Wave Method that R wave is tested, that is, utilizes the auspicious of different wave length
Sharp wave penetration depth is different, the different feature of different Propagation speed, and R wave data are carried out relevant calculation, are obtained
Rayleigh wave velocity value at rubble accumulation body different depth, and then determine top-down compactness and bearing capacity feelings at test point
Condition, to be layered to rubble accumulation body；
Step 3, test specimen is made；
The layering that foundation step 2 obtains is as a result, carry out excavation of testing pits to each layer, and clean out the workbench of this layer；Foundation
Scene actual use needs, and is cut into several approximate square blanks in workbench；
Manual amendment is carried out to each blank using tools such as knife, prickers, test specimen is used as after the completion of finishing, adds wooden model in its appearance
Plate carries out surface floating with cement mortar, is tested after maintenance to some strength；
Step 4, shear index detection is carried out to test specimen；
Step 4.1, in one load of the upper surface upper press cover of each test specimen, pressure at right angle is provided for test specimen；
The load is above the cabinet of test specimen upper surface using the length × width × height of bottom surface；
Rubble is stacked in the cabinet, forms 4 grades of loads that gross weight is respectively 300kg, 600kg, 900kg and 1200kg；
Step 4.2, jack is set between the side of test specimen and rubble accumulation body, provides horizontal shear force for test specimen；
Gradually apply horizontal shear force by each test specimen side of jack pair, record each test specimen be sheared it is corresponding when destruction
Jack pressure meter reading and its load situation, as testing result；
Step 5, shear index is obtained according to testing result；
The pressure at right angle N that load is generated is scaled normal stress σ as abscissa compared with compression area；It similarly will be very heavy
Pressure on top surface apparently surveys the data obtained Q compared with compression area, is scaled tangential stress τ as ordinate；It is drawn according to Coulomb's law
Curve is made, i.e.,You can get it Shear Strength Index c,Value.
4. the control method of the shear index detection device of mining junkyard according to claim 3 and debris dam, feature exist
In in the analytic process of the step 2, rubble accumulation body being layered using the Surface Wave Method that R wave is tested, i.e., using not
The R wave penetration depth of co-wavelength is different, the different feature of different Propagation speed, and R wave data are carried out phase
It closes and calculates, obtain the rayleigh wave velocity value at rubble accumulation body different depth, and then determine top-down closely knit at test point
Degree and bearing capacity situation, to be layered to rubble accumulation body.
5. the control method of the shear index detection device of mining junkyard according to claim 3 and debris dam, feature exist
In the blank quantity is 4.
6. the control method of the shear index detection device of mining junkyard according to claim 3 and debris dam, feature exist
In the length × width × height of the blank is not less than 60cm.
7. the control method of the shear index detection device of mining junkyard according to claim 3 and debris dam, feature exist
In the length × width × height of the test specimen is 50cm × 50cm × 50cm, and the compression area is 0.25m2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811257891.3A CN109142095A (en) | 2018-10-26 | 2018-10-26 | The shear index detection device and control method of a kind of mining junkyard and debris dam |
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| CN201811257891.3A CN109142095A (en) | 2018-10-26 | 2018-10-26 | The shear index detection device and control method of a kind of mining junkyard and debris dam |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU757910A1 (en) * | 1978-07-05 | 1980-08-23 | Kaunassk Polt Inst Antanasa | Method of measuring elastic constants of solid isotropic bodies |
| JPS61139744A (en) * | 1984-12-13 | 1986-06-27 | Saginomiya Seisakusho Inc | Fatique testing method |
| CN1311244C (en) * | 2001-12-20 | 2007-04-18 | 环球易邦公司 | Intelligent erathquake section survey system |
| JP2010266347A (en) * | 2009-05-15 | 2010-11-25 | Japan Atomic Energy Agency | Geological structure survey system and method therefor |
| CN104711965A (en) * | 2015-03-23 | 2015-06-17 | 中冶集团武汉勘察研究院有限公司 | Method for dividing density degrees of gravelly soil foundations through surface-wave inversion shear wave velocities |
| US20170138828A1 (en) * | 2015-11-17 | 2017-05-18 | Jonathan Scott Ellington | Method of soil liquefaction testing and remediation |
-
2018
- 2018-10-26 CN CN201811257891.3A patent/CN109142095A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU757910A1 (en) * | 1978-07-05 | 1980-08-23 | Kaunassk Polt Inst Antanasa | Method of measuring elastic constants of solid isotropic bodies |
| JPS61139744A (en) * | 1984-12-13 | 1986-06-27 | Saginomiya Seisakusho Inc | Fatique testing method |
| CN1311244C (en) * | 2001-12-20 | 2007-04-18 | 环球易邦公司 | Intelligent erathquake section survey system |
| JP2010266347A (en) * | 2009-05-15 | 2010-11-25 | Japan Atomic Energy Agency | Geological structure survey system and method therefor |
| CN104711965A (en) * | 2015-03-23 | 2015-06-17 | 中冶集团武汉勘察研究院有限公司 | Method for dividing density degrees of gravelly soil foundations through surface-wave inversion shear wave velocities |
| US20170138828A1 (en) * | 2015-11-17 | 2017-05-18 | Jonathan Scott Ellington | Method of soil liquefaction testing and remediation |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国水利部: "水利水电工程边坡设计规范", 《中华人民共和国水利行业标准》 * |
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Application publication date: 20190104 |