CN104634711A - Rock damage and penetration testing method - Google Patents
Rock damage and penetration testing method Download PDFInfo
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- CN104634711A CN104634711A CN201310553277.2A CN201310553277A CN104634711A CN 104634711 A CN104634711 A CN 104634711A CN 201310553277 A CN201310553277 A CN 201310553277A CN 104634711 A CN104634711 A CN 104634711A
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Abstract
The invention discloses a rock damage and penetration testing method. The method comprises the following steps: step one, placing a rock sample in a sealed container, connecting a measuring device to the rock sample in the container, applying a certain pressure on the rock sample, and recording the pressure value; step two, adjusting the experiment temperature, injecting water into the rock sample, keeping on applying a pressure on the rock sample, and recording the pressure value and osmotic pressure value; step three, detecting the ultrasonic wave travel time by an ultrasonic wave detection device, and calculating the traveling speed of ultrasonic wave; step four, researching and calculating the rock damage and permeability according to the measured pressure values, osmotic values, and ultrasonic wave speed values.
Description
Technical field
The present invention relates to a kind of damage of rock and penetration testing method.
Background technology
The construction of seabed tunnel often can be related in urban planning and construction; and the problems such as tunnel is prominent, water burst are caused due to seawater high pressure and corrosivity; in cold district subterranean tunnel, there is the problem of temperature to shoulderbed effect, these factors bring significant impact to engineering safety.To evaluation and the prediction of this kind of problem, need to carry out further investigation research to the perviousness of rock under complicated coupling condition and damage feature.From the angle that rock temperature, stress and seepage flow multi-scenarios method and damage combine, can fundamentally solve the problem run in engineering better.The damage of rock of prior art and the method for penetration testing loaded down with trivial details, and algorithm comparatively bothers in the computing permeability of rock.
Summary of the invention
According to prior art Problems existing, the invention discloses a kind of damage of rock and penetration testing method, step 1: be positioned over by rock sample in the container of sealing, the rock sample in measurement mechanism and container is connected; Certain pressure is applied to rock sample, and records pressure data;
Step 2: regulate experimental temperature, inject current in rock sample, then continues to apply pressure survey force value and osmotic pressure numerical value to rock sample;
Step 3: utilize ultrasonic detection device to detect ultrasonic propagation time and calculate its velocity of propagation;
Step 4: the pressure data values detected according to above-mentioned, osmolarity data, ultrasonic velocity value are studied the damage of rock and permeability and calculated.
In step 2; Select different temperature, under different temperatures numerical value, water is injected in rock, detect the osmotic pressure numerical value at many group temperature and force value.
In step 4: parameter and sonic wave amplitude parameter when the ultrasonic injury measurement of rock sample comprises sound wave ripple, utilize the ultrasound wave calculated to pass the damage variable that velocity of propagation calculates rock.
Damage of rock disclosed by the invention and penetration testing method, at different temperature pressure applied to rock sample and in a water bath pressure applied to rock sample, then the speed of ultrasonic propagation in rock sample is measured thus the damage feature of calculating rock, being disclosed as in the engineering fields such as underground works, oil exploitation, energy extraction of this method, the Penetration Signature of rock under Seepage of Rock Masses field, temperature field (fluid temperature and rock self-temperature), stress field coupling and the research of damage lay the foundation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention.
Embodiment
For making technical scheme of the present invention and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
In this method, rock sample adopts rock core or sillar to process, the requirement that test material preparation precision need meet " rock test specification ".Then adopt hollow test specimen to test in rock processing cost device, this test specimen is made into multi-form special crack combination simultaneously.Test under different temperature datas.
A kind of damage of rock as shown in Figure 1 and penetration testing method, step 1: be positioned over by rock sample in the container of sealing, is connected the rock sample in measurement mechanism and container; Certain pressure is applied to rock sample, and records pressure data;
Step 2: regulate experimental temperature, inject current in rock sample, then continues to apply pressure survey force value and osmotic pressure numerical value to rock sample;
Step 3: utilize ultrasonic detection device to detect ultrasonic propagation time and calculate its velocity of propagation;
Step 4: the pressure data values detected according to above-mentioned, osmolarity data, ultrasonic velocity value are studied the damage of rock and permeability and calculated.
Further, in step 2; Select different temperature, under different temperatures numerical value, water is injected in rock, detect the osmotic pressure numerical value at many group temperature and force value.
Further, in step 4: parameter and sonic wave amplitude parameter when the ultrasonic injury measurement of rock sample comprises sound wave ripple, utilize the ultrasonic propagation velocity calculated to calculate the damage variable of rock.
In embodiment: in measuring process, detect the size of ultrasonic velocity, in actual test process, all based on compressional wave parameter, first determine the Distance geometry time size that sound wave runs in rock sample, thus calculate vertical wave propagation velocity.Executing stressed to rock sample while, detect the ultrasonic velocity of rock axis in the present invention in real time, measure the osmotic pressure size under rock sample hoop seepage flow, thus the damage feature of study of rocks.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1. damage of rock and a penetration testing method, is characterized in that: comprise the following steps:
Step 1: be positioned over by rock sample in the container of sealing, is connected the rock sample in measurement mechanism and container; Certain pressure is applied to rock sample, and records pressure data;
Step 2: regulate experimental temperature, inject current in rock sample, then continues to apply pressure survey force value and osmotic pressure numerical value to rock sample;
Step 3: utilize ultrasonic detection device to detect ultrasonic propagation time and calculate its velocity of propagation;
Step 4: the pressure data values detected according to above-mentioned, osmolarity data, ultrasonic velocity value are studied the damage of rock and permeability and calculated.
2. a kind of damage of rock according to claim 1 and penetration testing method, be further characterized in that: in step 2; Select different temperature, under different temperatures numerical value, water is injected in rock, detect the osmotic pressure numerical value at many group temperature and force value.
3. a kind of damage of rock according to claim 1 and penetration testing method, be further characterized in that: in step 4: parameter and sonic wave amplitude parameter when the ultrasonic injury measurement of rock sample comprises sound wave ripple, utilize the ultrasound wave calculated to pass the damage variable that velocity of propagation calculates rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310553277.2A CN104634711A (en) | 2013-11-07 | 2013-11-07 | Rock damage and penetration testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310553277.2A CN104634711A (en) | 2013-11-07 | 2013-11-07 | Rock damage and penetration testing method |
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| Publication Number | Publication Date |
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| CN104634711A true CN104634711A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310553277.2A Pending CN104634711A (en) | 2013-11-07 | 2013-11-07 | Rock damage and penetration testing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949868A (en) * | 2015-05-21 | 2015-09-30 | 中国矿业大学 | Blasting damaged rock sample preparation and micro-macro combined damage degree determination method |
| CN107489453A (en) * | 2017-07-13 | 2017-12-19 | 临沂大学 | First advance coal body damage monitoring method under the influence of a kind of mining induced stress |
| CN107575244A (en) * | 2017-07-12 | 2018-01-12 | 临沂大学 | A kind of deep closely pump house surrounding rock of chamber supporting grouting method |
| CN108956412A (en) * | 2018-04-12 | 2018-12-07 | 河海大学 | A kind of method of the cold area's rock freezing-thawing damage degree of determining High aititude |
| CN109025939A (en) * | 2018-07-27 | 2018-12-18 | 中国石油大学(北京) | The fine and close oily imbibition experimental provision of ultrasonic wave |
| CN110068610A (en) * | 2019-05-06 | 2019-07-30 | 中冶北方（大连）工程技术有限公司 | A kind of obturation damage detecting method based on ultrasonic velocity |
-
2013
- 2013-11-07 CN CN201310553277.2A patent/CN104634711A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949868A (en) * | 2015-05-21 | 2015-09-30 | 中国矿业大学 | Blasting damaged rock sample preparation and micro-macro combined damage degree determination method |
| CN107575244A (en) * | 2017-07-12 | 2018-01-12 | 临沂大学 | A kind of deep closely pump house surrounding rock of chamber supporting grouting method |
| CN107489453A (en) * | 2017-07-13 | 2017-12-19 | 临沂大学 | First advance coal body damage monitoring method under the influence of a kind of mining induced stress |
| CN108956412A (en) * | 2018-04-12 | 2018-12-07 | 河海大学 | A kind of method of the cold area's rock freezing-thawing damage degree of determining High aititude |
| CN108956412B (en) * | 2018-04-12 | 2020-10-02 | 河海大学 | Method for determining freeze-thaw damage degree of rock in high altitude cold region |
| CN109025939A (en) * | 2018-07-27 | 2018-12-18 | 中国石油大学(北京) | The fine and close oily imbibition experimental provision of ultrasonic wave |
| CN109025939B (en) * | 2018-07-27 | 2019-11-12 | 中国石油大学(北京) | The fine and close oily imbibition experimental provision of ultrasonic wave |
| CN110068610A (en) * | 2019-05-06 | 2019-07-30 | 中冶北方（大连）工程技术有限公司 | A kind of obturation damage detecting method based on ultrasonic velocity |
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Legal Events
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150520 |