CN201749062U - Test device of rock fracture rupture process under action of high confined water - Google Patents
Test device of rock fracture rupture process under action of high confined water Download PDFInfo
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- CN201749062U CN201749062U CN2010205042864U CN201020504286U CN201749062U CN 201749062 U CN201749062 U CN 201749062U CN 2010205042864 U CN2010205042864 U CN 2010205042864U CN 201020504286 U CN201020504286 U CN 201020504286U CN 201749062 U CN201749062 U CN 201749062U
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- rubber sleeve
- steel ring
- foil gauge
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Abstract
The utility model provides a test device of the rock fracture rupture process under the action of high confined water. The test device adopts a pressure resistant closed vessel as a main body, an open-close sealing gland is arranged at the top of the pressure resistant closed vessel, a high confined water port and a foil gauge wire interface are connected on the sealing gland, a top displacing steel ring and a bottom displacing steel ring are respectively arranged on the internal top and at the internal bottom of the pressure resistant closed vessel, a rubber sleeve forming a test piece accommodating space is arranged between the top and the bottom displacing steel rings, a connecting pipe communicated with the high confined water port is arranged inside the rubber sleeve and is used for the insertion of a test piece, a foil gauge is arranged inside the rubber sleeve and is connected with the foil gauge wire interface, and a controllable oil pressure interface is arranged at the bottom of the pressure resistant closed vessel and is communicated with a space between the rubber sleeve and the side wall of the pressure resistant closed vessel. The device can realize dynamic monitoring test of rock fracture expanding to rupture under the action of different confining pressure and high confined water, thereby meeting the requirement for loading test of high confined water under different confining pressure circumstances.
Description
Technical field
The utility model relates under the effect of a kind of seat earth high artesian, to the floor rock crack from expanding to the test unit of rupture process monitoring, specifically, relate to a kind of rock fracture of the high artesian conditioning under different confined pressures from expanding to the proving installation of rupture process.
Background technology
In colliery control water conservancy project journey, correctly estimate seat earth intensity under the high hydraulic action, be the key factor of estimating coal seam bottom water bursting.For research seat earth rock mass under the different confined pressure conditions, produce destructive process under the high artesian effect, with the initial fissure of rock under the certain confined pressure condition of the test unit simulated field of floor rock rupture process or back give birth to the crack under the high artesian effect from expansion until rupture process, being not only the important method of research seat earth intensity, also is a kind of indirect means of research base plate gushing water process mechanism test.Therefore, design a kind of at high artesian effect lower shoe rock failure process test unit, for research, estimate the seat earth fracture strength of rock and, be of great practical significance to the control of base plate water.
At present, the base plate disruptiveness test of research high artesian is mainly carried out at the scene, and not only investment is big, and effect is not remarkable.In addition, under different confined pressure conditions, utilize the laboratory to record the perviousness in rock specimens crack, but do not carry out rock fracture from expanding to the test of the whole process of breaking by loading high artesian.Therefore, be necessary to develop the test unit that can satisfy this respect requirement.
Summary of the invention
The utility model purpose provides a kind of test unit of rock fracture rupture process of high artesian effect, to satisfy under different confined pressures, and under the high artesian effect, realize that the seat earth rock fracture is from extending to the test of rupture process, realize the dynamic monitoring of stress, strain, for the correct seat earth rock strength of estimating provides the reliable technique parameter.
The test unit of the rock fracture rupture process of the high artesian effect that the utility model provides, main body is withstand voltage closed container, the top of this withstand voltage closed container is able to turn on or off gland bonnet, sealing covers and is connected with high artesian interface and foil gauge line interface, inherent top of described withstand voltage closed container and bottom are respectively arranged with top displacement steel ring and bottom displacement steel ring, be provided with the rubber sleeve that constitutes the test specimen spatial accommodation between described top displacement steel ring and the bottom displacement steel ring, be provided with in the described rubber sleeve be communicated with described high hydroslatic joint be used to insert connecting pipe in the test specimen, be provided with foil gauge in the described rubber sleeve, described foil gauge is connected with described foil gauge line interface, the bottom of described withstand voltage closed container is provided with controlled oil pressure interface, and described controlled oil pressure interface is communicated with the space between described sealing shroud and the described withstand voltage closed container sidewall.
Preferably, all be provided with the rubber ring that is connected with described rubber sleeve in the described top displacement steel ring with in the bottom displacement steel ring.
Preferably, described withstand voltage closed container is a right cylinder, is provided with foil gauge in the described rubber sleeve, and described foil gauge is connected with described foil gauge line interface.
The beneficial effect of this device is: can record and influenced by different confined pressures, the rock fracture that is subjected to the high artesian effect is from expanding to strain, the stress numerical of breaking.Specifically, described controlled oil pressure interface can externally be stablized adjustable oil hydraulic system, described high artesian interface can connect the high artesian control system, described foil gauge line interface can connect the dynamic strain system, by opening or closing into and out of fluid switch, can control under the different confined pressures, realize that the rock fracture of high artesian effect is expanded to the dynamic monitoring test of rupture process; And according to the variation of strain, stress dynamic value, the stress intensity when differentiating rock burst is for the evaluation of seat earth rock strength provides objective basis.
Description of drawings
The structural representation of the test unit of the rock fracture rupture process of a kind of high artesian effect that Fig. 1 provides for the utility model;
Fig. 2 is the vertical section structure synoptic diagram of the withstand voltage closed container of device shown in Figure 1.
Among the figure: the withstand voltage closed container of 1-, 2-top cover labyrinth, the controlled oil pressure interface of 3-, 4-high artesian interface, 5-foil gauge connecting line interface, 6-top displacement steel ring, 7-top rubber circle, 8-rubber sleeve, 9-top seal circle, 10-is used to insert the connecting pipe in the test specimen, 11-pressurization bolt, 12-bolt hole, the 13-test specimen, 14-test specimen cylindrical hole, 15-lower sealing cover, 16-bottom displacement steel ring, 17-bottom rubber ring, 18-bottom O-ring seal.
Embodiment
For making goal of the invention of the present utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.As depicted in figs. 1 and 2, have in the withstand voltage closed container 1 for constituting the rubber sleeve 8 of test specimen spatial accommodation, be provided with foil gauge connecting line interface 5 and high artesian interface 4 at top cover labyrinth 2, be provided with controlled oil pressure interface 3 on the lower sealing cover 15, and in top cover labyrinth 2 and lower sealing cover 15, be provided with top displacement steel ring 6 and bottom displacement steel ring 16.Displacement steel ring 6 in top is respectively arranged with top rubber circle 7 and the bottom rubber ring 17 that is connected with rubber sleeve 8 with bottom displacement steel ring 16.High artesian interface 4 is connected with the connecting pipe 10 that is used to insert in the test specimen, and the connecting pipe 10 that is used to insert in the test specimen inserts in the test specimen 13 by test specimen cylindrical hole 14.Top cover labyrinth 2 seals by top seal circle 9 with other position of withstand voltage closed container 1, has the bolt hole 12 of pressurization bolt of being provided with 11 on the top cover labyrinth 2.Lower sealing cover 15 is provided with by identical mode with bottom O-ring seal 18.
Before the test, paste foil gauge on the test specimen top layer, to seal with rubber sleeve 8 around the test specimen, be placed in the top displacement steel ring 6 and bottom displacement steel ring 16 in the withstand voltage closed container 1, cover top cover labyrinth 2 then, tighten pressurization bolt 11, test specimen 13 is closely contacted with the sidewall of displacement steel ring 6 in top with bottom displacement steel ring 16.
In the test, controlled oil hydraulic system makes this space be in certain process stage by voltage stabilizing oiling in the space of controlled oil pressure interface 3 between withstand voltage closed container 1 and rubber sleeve 3, forms the environment that loads under the confined pressure.Then by adjustable high pressure water-adding system by inserting the connecting pipe 10 slow water filling to test specimen 13 in the test specimen, and constantly increase water pressure, break until test specimen.
Under certain confined pressure condition, by the high pressure water injection system, test specimen surface strain sheet real time record test data, can reflect under certain confined pressure condition, be expanded to strain, water pressure and the time relation curve of rupture process in the test specimen from the crack, thereby can determine the stress value when test specimen breaks, and obtain the intensity level of floor rock with this.
Claims (3)
1. the test unit of the rock fracture rupture process of a high artesian effect, main body is withstand voltage closed container, the top of this withstand voltage closed container is able to turn on or off gland bonnet, sealing covers and is connected with high artesian interface and foil gauge line interface, it is characterized in that, inherent top of described withstand voltage closed container and bottom are respectively arranged with top displacement steel ring and bottom displacement steel ring, be provided with the rubber sleeve that constitutes the test specimen spatial accommodation between described top displacement steel ring and the bottom displacement steel ring, be provided with in the described rubber sleeve be communicated with described high hydroslatic joint be used to insert connecting pipe in the test specimen, the bottom of described withstand voltage closed container is provided with controlled oil pressure interface, and described controlled oil pressure interface is communicated with the space between described sealing shroud and the described withstand voltage closed container sidewall.
2. the test unit of the rock fracture rupture process of high artesian effect according to claim 1 is characterized in that, all is provided with the rubber ring that is connected with described rubber sleeve in the described top displacement steel ring with in the bottom displacement steel ring.
3. the test unit of the rock fracture rupture process of a kind of high artesian effect according to claim 1, it is characterized in that, described withstand voltage closed container is a right cylinder, is provided with foil gauge in the described rubber sleeve, and described foil gauge is connected with described foil gauge line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205042864U CN201749062U (en) | 2010-08-25 | 2010-08-25 | Test device of rock fracture rupture process under action of high confined water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205042864U CN201749062U (en) | 2010-08-25 | 2010-08-25 | Test device of rock fracture rupture process under action of high confined water |
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| Publication Number | Publication Date |
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| CN201749062U true CN201749062U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205042864U Expired - Fee Related CN201749062U (en) | 2010-08-25 | 2010-08-25 | Test device of rock fracture rupture process under action of high confined water |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661894A (en) * | 2012-05-17 | 2012-09-12 | 四川大学 | Jointed rock mass test piece and jointed rock mass and aqueous rock coupling test method |
| CN103308390A (en) * | 2013-05-24 | 2013-09-18 | 中国石油天然气集团公司 | Bushing non-uniform external pressure loading test device and bushing non-uniform external pressure loading test method |
| CN103884597A (en) * | 2014-03-01 | 2014-06-25 | 安徽理工大学 | Analogue measurement device and method for hydraulic fracturing induced surrounding rock stress change of coal bed |
| CN104007021A (en) * | 2014-05-17 | 2014-08-27 | 安徽理工大学 | Laboratory hydraulic fracturing method in vacuum state |
| CN104374637A (en) * | 2014-11-03 | 2015-02-25 | 中国矿业大学 | Water sealing device applied to hydraulic fracture experiment under high-temperature and high-pressure condition |
| CN104977234A (en) * | 2015-06-23 | 2015-10-14 | 安徽理工大学 | Pressure rock failure and instability process and dynamic permeability test apparatus and method thereof |
| CN105628526A (en) * | 2014-10-09 | 2016-06-01 | 中国科学院地质与地球物理研究所 | Dynamic loading hydraulic fracturing rock mechanical test system |
| CN105675724A (en) * | 2016-01-29 | 2016-06-15 | 中国矿业大学 | Acoustic emission positioning monitoring device and method for hydraulic fracturing fissure field of coal body containing gas |
| CN105865929A (en) * | 2016-03-30 | 2016-08-17 | 中国科学院力学研究所 | Rock material fracture characteristic test system and method thereof |
| CN108871963A (en) * | 2015-11-23 | 2018-11-23 | 中国人民解放军陆军工程大学 | A kind of test method of tube wall crack propagation velocity test device |
| CN110595905A (en) * | 2019-10-21 | 2019-12-20 | 安徽理工大学 | Portable rock core multi-parameter comprehensive testing device and testing method |
| CN113654904A (en) * | 2017-06-20 | 2021-11-16 | 威尔德尔格管道科技有限公司 | Pipe testing method and apparatus |
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2010
- 2010-08-25 CN CN2010205042864U patent/CN201749062U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661894B (en) * | 2012-05-17 | 2014-05-21 | 四川大学 | Jointed rock mass test piece and jointed rock mass and aqueous rock coupling test method |
| CN102661894A (en) * | 2012-05-17 | 2012-09-12 | 四川大学 | Jointed rock mass test piece and jointed rock mass and aqueous rock coupling test method |
| CN103308390B (en) * | 2013-05-24 | 2015-10-14 | 中国石油天然气集团公司 | The non-homogeneous external pressure loading test device of sleeve pipe and method |
| CN103308390A (en) * | 2013-05-24 | 2013-09-18 | 中国石油天然气集团公司 | Bushing non-uniform external pressure loading test device and bushing non-uniform external pressure loading test method |
| CN103884597A (en) * | 2014-03-01 | 2014-06-25 | 安徽理工大学 | Analogue measurement device and method for hydraulic fracturing induced surrounding rock stress change of coal bed |
| CN104007021A (en) * | 2014-05-17 | 2014-08-27 | 安徽理工大学 | Laboratory hydraulic fracturing method in vacuum state |
| CN105628526A (en) * | 2014-10-09 | 2016-06-01 | 中国科学院地质与地球物理研究所 | Dynamic loading hydraulic fracturing rock mechanical test system |
| CN104374637A (en) * | 2014-11-03 | 2015-02-25 | 中国矿业大学 | Water sealing device applied to hydraulic fracture experiment under high-temperature and high-pressure condition |
| CN104977234A (en) * | 2015-06-23 | 2015-10-14 | 安徽理工大学 | Pressure rock failure and instability process and dynamic permeability test apparatus and method thereof |
| CN104977234B (en) * | 2015-06-23 | 2018-02-27 | 安徽理工大学 | Pressure-bearing rock failure mechanism of rock Instability and dynamic permeability characteristic test device and method |
| CN108871963A (en) * | 2015-11-23 | 2018-11-23 | 中国人民解放军陆军工程大学 | A kind of test method of tube wall crack propagation velocity test device |
| CN108871963B (en) * | 2015-11-23 | 2020-06-30 | 中国人民解放军陆军工程大学 | Testing method of pipe wall crack propagation speed testing device |
| CN105675724A (en) * | 2016-01-29 | 2016-06-15 | 中国矿业大学 | Acoustic emission positioning monitoring device and method for hydraulic fracturing fissure field of coal body containing gas |
| CN105675724B (en) * | 2016-01-29 | 2020-01-10 | 中国矿业大学 | Acoustic emission positioning and monitoring device and method for hydraulic fracture field of gas-containing coal body |
| CN105865929A (en) * | 2016-03-30 | 2016-08-17 | 中国科学院力学研究所 | Rock material fracture characteristic test system and method thereof |
| CN105865929B (en) * | 2016-03-30 | 2019-01-04 | 中国科学院力学研究所 | A kind of rock type materials cracking properties pilot system and method |
| CN113654904A (en) * | 2017-06-20 | 2021-11-16 | 威尔德尔格管道科技有限公司 | Pipe testing method and apparatus |
| CN110595905A (en) * | 2019-10-21 | 2019-12-20 | 安徽理工大学 | Portable rock core multi-parameter comprehensive testing device and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20110825 |