CN103760020A - Complete plane strain similar test system capable of applying gradient strain - Google Patents
Complete plane strain similar test system capable of applying gradient strain Download PDFInfo
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- CN103760020A CN103760020A CN201410001118.6A CN201410001118A CN103760020A CN 103760020 A CN103760020 A CN 103760020A CN 201410001118 A CN201410001118 A CN 201410001118A CN 103760020 A CN103760020 A CN 103760020A
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Abstract
The invention relates to a complete plane strain similar test system capable of applying gradient strain. The whole system comprises a plurality of combined modules, a detachable combined module, a horizontal gradient strain servo control system, a vertical strain servo control system, a connecting lifting control system and a data acquisition control system. Due to the adoption of the system, a more practical test condition is provided for an urban underground construction and a mining engineering; the test system can slide freely along with a rock via the modules of two sides and limits the movement in the direction vertical to a model, so as to realize the plane strain similar test. The upper pressure under a deep geological condition can be compensated by the vertical strain servo control system, and the horizontal gradient strain is applied by the horizontal gradient strain servo control system. The test condition of the test system can be well consistent with the actual engineering condition, the results of the test are more real and more reliable, and can guide the design and construction scientifically and reasonably, and therefore a scientific test condition is provided for the stability research of geotechnical engineering.
Description
Technical field
The present invention relates to colliery and other mines of colliery, (non-) metal mine, city underground engineering, railway and Tunnel of Highway, slope project, especially deep mining.By international invention sorted table (IPC), divide the buildings portion that belongs to, soil layer or rock stratum exploitation branch, the pilot system of the Geotechnical Engineering exploitations such as mine, tunnel and side slope, the technical field of side slope and tunnel confined pressure steady, Urban Metro Construction security, deeps mines exploitation stability of the roadway and exploitation roof caving rule and Disaster Study.
Background technology
For the safety and high efficiency in mine and the research to orebody mining roof caving rule and disaster mechanism, in order to ensure the safety of important capital construction and municipal works, the needs of science design and manufacture bases are provided, must carry out the similar test research of orebody mining process and the similar test research of important capital construction Municipal Engineering Construction simulation according to geologic condition.
The similar test of deep tunnel, subway, tunnel and side slope etc. is all generally to take out some important transversal section to study, by these transversal section of mechanical theory analysis, should belong to plane strain state, therefore the condition that it is carried out to similar test and also will meet plane strain.
And all similar test devices are not complete Plane Strain Test device at present, reason is not limit the strain of vertical cross section direction, it is in fact plane stress test unit, also have and adopt baffle plate by the strain restriction of vertical cross section direction, but simultaneously, due to the strain of model in the plane of transversal section that had larger frictional constraint between baffle plate and model, do not meet plane strain deformation condition yet.And at present similar test is to carry out in the situation that not considering horizontal gradient stress, and these are not all inconsistent with the stress of Practical Project, and along with the impact of the increase horizontal stress of the underground works degree of depth is very remarkable, can not ignore again.Thereby, develop a kind of complete plane strain and consider that the similar test system of horizontal gradient stress is necessary, can analyze and research accurately engineering stability and the disaster mechanism problem such as deep mining, subway, tunnel, side slope, for design and construction provide scientific basis.
Summary of the invention
In order accurately to disclose underground works, build and the stability of the Geotechnical Engineering such as mining, the invention provides a kind of complete plane strain and can consider the graded pilot system of horizontal stress.This system can realize complete plane strain similar test, considers the graded of horizontal tectonics stress, and has vertical stress servo-control system, can not only test superficial part engineering, and can meet the requirement of deep Geotechnical Engineering test.The more realistic engineering stress of experiment condition that this system provides, result is more true and reliable.
The technical solution adopted for the present invention to solve the technical problems is:
Whole pilot system is comprised of multiple composite modules 3, detachable composite module 2, horizontal gradient stress servo-control system, vertical stress servo-control system, connection jacking control system, data acquisition control system.The invention has the beneficial effects as follows:
The present invention can provide more realistic test condition for city underground engineering and mining engineering, and this pilot system could be free to slide and limit by both sides module vertical mould direction movement with rock mass realizes plane strain similar test.And can, by the upper pressure under vertical stress servo-control system compensation geology of deep part condition, by horizontal gradient stress servo-control system, apply horizontal gradient stress.This pilot system test condition and Practical Project condition can be good at coincideing, and test acquired results is more true and reliable, and design that can be scientific and reasonable and construction, for Geotechnical Engineering stability study provides the test condition of science.
Accompanying drawing explanation
By describing in more detail exemplary embodiment of the present invention with reference to accompanying drawing, above and other aspect of the present invention and advantage will become more and be readily clear of, in the accompanying drawings:
Fig. 1 is that schematic diagram is looked on composite module 1 left side, Fig. 2 is the schematic top plan view of composite module 1, and Fig. 3 is detachable composite module 2 schematic diagram, and Fig. 4 is composite module 3 reset schematic diagram, Fig. 5 is composite module 3 jacking schematic diagram, and Fig. 6 is Plane Strain Test overall system schematic diagram.
Embodiment
Hereinafter, now with reference to accompanying drawing, the present invention is described more fully, various embodiment shown in the drawings.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, it will be thorough with completely providing these embodiment to make the disclosure, and scope of the present invention is conveyed to those skilled in the art fully.
Hereinafter, exemplary embodiment of the present invention is described with reference to the accompanying drawings in more detail.
With reference to accompanying drawing 1-6, composite module 1 is comprised of parts 1, parts 2, parts 3, parts 4, parts 5, parts 6, parts 7, parts 8; Detachable composite module 2 is comprised of parts 1, parts 2, parts 4, parts 5, parts 6, parts 7, parts 8, parts 9 and parts 10; Composite module 3 is comprised of composite module 1 and parts 11.
Whole pilot system is comprised of multiple composite modules 3, detachable composite module 2, horizontal gradient stress servo-control system, vertical stress servo-control system, connection jacking control system, data acquisition control system.
The method of work of this pilot system is as follows:
1) the research position of first definite engineering, clearly study geologic condition, stress condition and the construction technology at position, according to similarity theory, determine each analog quantity of model and select analog material, Plane Strain Test system location, opening control system switches on power.
2) handle connection jacking control system ground floor in lifting jack group 2 is resetted, drive composite module 1 in reset mode; Handle connection jacking control system ground floor in lifting jack group 1 is resetted, band dynamic component 11 is in reset mode.The reset mode of composite module 1 and parts 11 as shown in Figure 4.
3) according to intending excavation position, by detachable composite module 2, replace composite module 1, handle horizontal gradient stress servo-control system and reset, now formation model is built space and is built analog material, and lays pressure monitoring box.
4) perform step successively 2) and step 3) whole model is built complete.
5), when model reaches testing requirements, equal proportion answers force servo system to apply horizontal gradient stress by horizontal gradient simultaneously.As need vertical stress to compensate also equal proportion to apply vertical stress by vertical stress servo-drive system.Allow model reach actual forced status.
6) connect 1 jacking of jacking control system lifting jack group, after band dynamic component 11, move; Connect 2 jackings of jacking control system lifting jack group, after band dynamic component 4, move.Make composite module 3 become state shown in Fig. 5.
7) remove the detachable module at corresponding excavation position, according to actual excavation situation excavation model.
8) exploitation causes in the plane that Rock Displacement Movement drives parts 2 in composite module 3 of parts 1 in composite module 3 and parts 3 and parts 11 to form and moves.Displacement is monitored by parts 8, and pressure changes to be monitored and gathered by data acquisition control system by pressure cell.
9) according to Practical Project, will excavate position excavation complete, shutdown system.According to the data and the breakoff phenomenon that obtain, analyze and research.
10) off-test, regular instrument.
The foregoing is only embodiments of the invention, be not limited to the present invention.The present invention can have various suitable changes and variation.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (3)
1. complete plane strain also can apply a similar test system for gradient stress, it is characterized in that:
Pilot system is comprised of multiple the 3rd composite modules (3), detachable composite module (2), horizontal gradient stress servo-control system, vertical stress servo-control system, connection jacking control system, data acquisition control system.
2. a kind of complete plane strain as claimed in claim 1 also can apply the similar test system of gradient stress, it is characterized in that:
The first composite module (1) is comprised of parts 1, parts 2, parts 3, parts 4, parts 5, parts 6, parts 7, parts 8; Detachable composite module (2) is comprised of parts 1, parts 2, parts 4, parts 5, parts 6, parts 7, parts 8, parts 9 and parts 10; The 3rd composite module (3) is comprised of the first composite module (1) and parts 11.
3. use a kind of complete plane strain as claimed in claim 1 or 2 also can apply a test method for the similar test system of gradient stress, it is characterized in that described method comprises the steps:
1) the research position of first definite engineering, clearly study geologic condition, stress condition and the construction technology at position, according to similarity theory, determine each analog quantity of model and select analog material, Plane Strain Test system location, opening control system switches on power;
2) handle connection jacking control system ground floor in the second lifting jack group is resetted, drive the first composite module (1) in reset mode; Handle connection jacking control system ground floor in the first lifting jack group is resetted, band dynamic component 11 is in reset mode;
3) according to intending excavation position, by detachable composite module (2), replace the first composite module (1), handling horizontal gradient stress servo-control system resets, now formation model is built space and is built analog material, and lays pressure monitoring box;
4) perform step successively 2) and step 3) whole model is built complete;
5) when model reaches testing requirements, simultaneously equal proportion answers force servo system to apply horizontal gradient stress by horizontal gradient, as needs vertical stress to compensate also equal proportion by vertical stress servo-drive system, to apply vertical stress, allow model reach actual forced status;
6) connect the first lifting jack group jacking of jacking control system, after band dynamic component 11, move; Connect the second lifting jack group jacking of jacking control system, after band dynamic component 4, move;
7) remove the detachable module at corresponding excavation position, according to actual excavation situation excavation model;
8) exploitation causes in the plane that Rock Displacement Movement drives parts 2 in the 3rd composite module (3) of parts 1 in the 3rd composite module (3) and parts 3 and parts 11 to form and moves, displacement is monitored by parts 8, and pressure changes to be monitored and gathered by data acquisition control system by pressure cell;
9) according to Practical Project, will excavate position excavation complete, shutdown system, analyzes and researches according to the data and the breakoff phenomenon that obtain;
10) off-test, regular instrument.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092377A (en) * | 2015-08-11 | 2015-11-25 | 北方工业大学 | Testing device for realizing plane strain state in large deformation range and data processing method |
| CN109142067A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The experimental method and device of stress wave propagation in gradient static stress lower class rock material |
| CN109142060A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The loading experimental method and device of axial gradient static stress are realized to class rock material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208007A (en) * | 2005-01-25 | 2006-08-10 | Nidec-Shimpo Corp | Measurement control system |
| CN201382876Y (en) * | 2009-03-23 | 2010-01-13 | 长春试验机研究所有限公司 | Similar model test device for rock plane |
| CN101738331A (en) * | 2009-12-28 | 2010-06-16 | 北京交通大学 | Tunnel construction simulation plane strain model test device |
| CN202033951U (en) * | 2010-12-31 | 2011-11-09 | 长春机械科学研究院有限公司 | Testing machine for physical analog in rock mass engineering |
| CN102402892A (en) * | 2011-05-12 | 2012-04-04 | 中国矿业大学 | Device and method for carrying out filling mining plane strain simulation test |
-
2014
- 2014-01-02 CN CN201410001118.6A patent/CN103760020A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208007A (en) * | 2005-01-25 | 2006-08-10 | Nidec-Shimpo Corp | Measurement control system |
| CN201382876Y (en) * | 2009-03-23 | 2010-01-13 | 长春试验机研究所有限公司 | Similar model test device for rock plane |
| CN101738331A (en) * | 2009-12-28 | 2010-06-16 | 北京交通大学 | Tunnel construction simulation plane strain model test device |
| CN202033951U (en) * | 2010-12-31 | 2011-11-09 | 长春机械科学研究院有限公司 | Testing machine for physical analog in rock mass engineering |
| CN102402892A (en) * | 2011-05-12 | 2012-04-04 | 中国矿业大学 | Device and method for carrying out filling mining plane strain simulation test |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092377A (en) * | 2015-08-11 | 2015-11-25 | 北方工业大学 | Testing device for realizing plane strain state in large deformation range and data processing method |
| CN105092377B (en) * | 2015-08-11 | 2017-07-11 | 北方工业大学 | Testing device for realizing plane strain state in large deformation range and data processing method |
| CN109142067A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The experimental method and device of stress wave propagation in gradient static stress lower class rock material |
| CN109142060A (en) * | 2018-09-29 | 2019-01-04 | 江西理工大学 | The loading experimental method and device of axial gradient static stress are realized to class rock material |
| CN109142060B (en) * | 2018-09-29 | 2020-12-25 | 江西理工大学 | Loading experiment method and device for realizing axial gradient static stress on rock-like material |
| CN109142067B (en) * | 2018-09-29 | 2020-12-25 | 江西理工大学 | Experimental method and device for stress wave propagation in rock-like material under gradient static stress |
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Application publication date: 20140430 |