CN101244397B - Assembled constant-humidity constant-temperature enclosed analog material simulation laboratory and experimental method - Google Patents
Assembled constant-humidity constant-temperature enclosed analog material simulation laboratory and experimental method Download PDFInfo
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- CN101244397B CN101244397B CN200710099678XA CN200710099678A CN101244397B CN 101244397 B CN101244397 B CN 101244397B CN 200710099678X A CN200710099678X A CN 200710099678XA CN 200710099678 A CN200710099678 A CN 200710099678A CN 101244397 B CN101244397 B CN 101244397B
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Abstract
The invention discloses a packaged sealing simulating laboratory of analogue materials with constant humidity and temperature and an experimental approach, comprising a laboratory, the laboratory is sealing and removable, and a temperature control device and a humidity control device are arranged in the laboratory. The sealing laboratory is assembled by color-coated steel compound sandwich boards. The analogue material models which need simulating experiment are arranged in the laboratory, under the designed temperature and humidity conditions, the simulating experiment of analogue materials is operated. At the same time of the experiment, the time-dependent hardening process curve of the dynamics parameter of the analogue material model is tested. And according to the error difference between the design value and the actual measured value of the dynamics parameter of the analogue material model, the error compensation of the experiment result is calculated. So that the experiment result is more reliable, and the simulation experiment result of the analogue material can be transformed to quantitative from qualitative. The experiment approach and the device are mainly suitable for geotechnical and mining engineering simulating experiments, and also are suitable for the simulating experiments of analogue materials under other conditions.
Description
Technical field
The present invention relates to a kind of experimental provision and experimental technique, relate in particular to a kind of device and method that carries out the equivalent material simulating experiment.
Background technology
Equivalent material simulating test is the model test technology based on the theory of similarity, is to utilize features such as the phase Sihe that exists between things or phenomenon is similar to study a kind of method of the natural law.It is specially adapted to those research fields that is difficult to obtain with theoretical analysis method the result, also is a kind of effective means of theoretical study results being analyzed comparison simultaneously.
Equivalent material simulating test has following characteristics: the main parameters that the equivalent material simulating test can strict control simulated object is not subjected to the restriction of external condition; The equivalent material simulating test can be given prominence to the principal contradiction that is studied a question, so that find and hold the substantive characteristics and the inner link of research object; Similar material model is made easily, compares with prototype test, has the manpower of saving, financial resources, material resources and the advantage of time; Equivalent material simulating is measurable to directly test and the performance that can not analyze of prototype; The equivalent material simulating test can combine the correctness of check prototype gained conclusion with numerical simulation.
Theoretically, the equivalent material simulating test should obtain quantitative test result.But current experiments device and experimental technique are owing to multiple reason, and experimental result is accurate inadequately, generally can only obtain qualitative conclusions so far.One of them major reason is exactly that the mechanics parameter behind its cast material dry solidification dispersed often after test model was laid, and is difficult to guarantee that the mechanics parameter behind the cast material dry solidification is consistent with the mechanics parameter of design, and its error is often bigger.The discrete main cause of mechanics parameter is an experimental enviroment behind the cast material dry solidification and cause, and mainly is the influence of temperature and humidity.
Summary of the invention
The purpose of this invention is to provide assembled constant-humidity constant-temperature enclosed analog material simulation laboratory and experimental technique thereof that a kind of temperature and humidity can be controlled, the equivalent material simulating result of experiment that this laboratory and experimental technique obtain is more reliable.
The objective of the invention is to be achieved through the following technical solutions:
Assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention, it comprises the laboratory, described laboratory is airtight laboratory and is dismountable, is provided with temperature control equipment and humidity conditioner in the laboratory; Be provided with the equivalent material simulating testing stand in the described laboratory.
Described equivalent material simulating testing stand comprises plane equivalent material simulating testing stand and/or three-dimensional analog material simulator stand.
Described laboratory is assembled by color steel composite sandwich panel.
The method of utilizing above-mentioned assembled constant-humidity constant-temperature enclosed analog material simulation laboratory to carry out the equivalent material simulating experiment of the present invention comprises:
At first, similar material model is placed on the equivalent material simulating testing stand in the laboratory; Then, the laboratory is airtight, carry out the equivalent material simulating experiment;
The breadboard temperature and humidity of control is in the scope that experiment needs in whole experiment.
Described equivalent material simulating experiment comprises, under temperature of setting and damp condition, measure time dependent hardening process curves such as similar material model parameter, described analog material parameter comprises moisture content w, elastic modulus E, Poisson's Ratio μ, the uniaxial compressive strength σ of analog material
0
Described equivalent material simulating experiment also comprises, according to the design load of described analog material parameter and the error amount between the practical measurement value, according to by the relevant theoretical theoretical formula that derives of rock mechanics, experimental result is carried out the error compensation computing, described error compensation comprises following at least a:
Strata displacement error compensation, the compensation of rock stratum strain error and terrane stress error compensation.
As seen from the above technical solution provided by the invention, assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention and experimental technique thereof, because the laboratory is airtight laboratory and is dismountable, is provided with temperature control equipment and humidity conditioner in the laboratory; Be provided with the equivalent material simulating testing stand in the described laboratory.Can strictly control breadboard interior temperature and humidity in the experimentation, in the laboratory of design temperature and humidity, carry out the equivalent material simulating experiment, make experimental result more reliable.
This analog material simulation laboratory and experimental technique thereof mainly are applicable to simulated experiments such as Geotechnical Engineering, mining engineering, also are applicable to the equivalent material simulating experiment under other situation.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention;
Fig. 2 is the side structure schematic diagram of assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention;
Fig. 3 is the structure schematic diagram of assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention.
The specific embodiment
Assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of the present invention, its preferable specific embodiment be, comprises the laboratory, is provided with the equivalent material simulating testing stand in the laboratory.Described equivalent material simulating testing stand comprises plane equivalent material simulating testing stand and three-dimensional analog material simulator stand.
As Fig. 1, Fig. 2, shown in Figure 3, described laboratory is airtight laboratory and is dismountable that assembled by color steel composite sandwich panel, color steel composite sandwich panel has insulation, moisture preserving function.Also can adopt other light building material plate to assemble.
Be provided with temperature control equipment and humidity conditioner in the described laboratory, can set and the control room in temperature.
The present invention utilizes above-mentioned assembled constant-humidity constant-temperature enclosed analog material simulation laboratory to carry out the method for equivalent material simulating experiment, comprising:
At first, similar material model is layed on the equivalent material simulating testing stand in the laboratory; Then, the laboratory is airtight, carry out the equivalent material simulating experiment;
The breadboard temperature and humidity of control is in the scope that experiment needs in whole experiment.
Specifically comprise step:
Step 1, on the equivalent material simulating experimental bench, lay similar material model;
Step 2, assemble constant-humidity constant-temperature enclosed laboratory, the experimental bench that lays similar material model is enclosed within the constant-humidity constant-temperature enclosed laboratory;
Step 3, constant experiment humidity and the temperature of setting are waited for the similar material model sclerosis;
Step 4, after the sclerosis of similar material model meets the demands, come into effect experimental works such as excavation, test.
In carrying out the equivalent material simulating experimentation, under temperature of setting and damp condition, measure time dependent hardening process curves such as similar material model parameter, described analog material parameter comprises moisture content w, elastic modulus E, Poisson's Ratio μ, the uniaxial compressive strength σ of analog material
0, and other some parameters that need measure.
Then, according to the design load of described analog material parameter and the error amount between the practical measurement value,, experimental result is carried out the error compensation computing according to by the relevant theoretical theoretical formula that derives of rock mechanics.
Described error compensation comprises: strata displacement error compensation, the compensation of rock stratum strain error and terrane stress error compensation etc., can carry out computing to one or more error compensations wherein as required.
The present invention mainly is applicable to simulated experiments such as Geotechnical Engineering, mining engineering, also is applicable to the equivalent material simulating experiment under other situation.
The process and the philosophy and technique main points of concrete experiment are:
At first, the equivalent material simulating test is carried out in the dismountable airtight laboratory of design and construction in confined chamber.Test temperature is controlled at 16 °, and relative humidity is controlled at 60%; Secondly, carry out the experimental study of analog material physical and mechanical parameter sclerosis rule, the moisture content w of test determination analog material, elastic modulus E, uniaxial compressive strength σ
0Rule is carried out the analog simulation test on this basis over time, so just can obtain better simulated test achievement.
As Fig. 1, Fig. 2, shown in Figure 3, the constant-humidity constant-temperature analog material simulation laboratory of designed construction, breadboard sheet material use color steel composite sandwich panel, mainly play heat-blocking action.Make demountable modular construction, this is in order to use overhead traveling crane to carry out the channel-section steel lifting in the process of laying at model.Using temperature and humidity in air-conditioning, the humidifier conditioning chamber, is a kind of simple, scheme that expense is cheap.Indoor serviceability temperature meter, relative humidity meter monitor temperature and humidity, and build plane and three-dimensional two kinds of simulated experiment platforms, plane platform size can be long 8m, wide 0.3m, high 4.0m, three-dimensional platform are of a size of long 6m, wide 3.5m, high 4m.Also can be other size as required.
The main feature of this analog material simulation laboratory is: can strictly control the environmental condition (being temperature and humidity) of testing, thereby control the mechanics parameter of cast material effectively, equivalent material simulating is tested by qualitative to quantitatively taking a step forward.The reliability of equivalent material simulating experiment how, whether its mechanics parameter can both reach the experimental design requirement after depending primarily on model material hardens, and the size of intensity after the model material hardens and elastic modelling quantity depends primarily on: the mechanical property of raw material, proportioning, temperature and humidity, firm time etc., for same group of raw material, the mechanics of materials parameter under different conditions of mixture ratios can be tested acquisition.Like this,, and determine the hardening curve of analog material, then can effectively control its mechanics parameter, thereby improve the reliability of experiment if can effectively control temperature and humidity.
Simultaneously, set up the experimental error compensatory theory.Generally speaking, lay the mechanics parameter of the similar material model behind the hardened forming, always have either large or small error with the mechanics parameter of designing requirement: elastic modelling quantity error delta E, uniaxial compressive strength error delta σ
0Deng, this is inevitable.Thus, can be according to plastoelasticity and structural mechanics theory, by elastic modelling quantity error delta E, uniaxial compressive strength error delta σ
0Obtain consequent strata displacement error delta U
iWith stress error delta σ
i, the strata displacement value U that can obtain the equivalent material simulating experimental observation so just
iWith stress value σ
i, add strata displacement error delta U
iWith stress error delta σ
i, the simulated experiment observation is compensated, thereby sets up the error compensation theory of equivalent material simulating experiment.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (4)
1. assembled constant-humidity constant-temperature enclosed analog material simulation laboratory, be used to carry out the equivalent material simulating experiment, it is characterized in that it comprises the laboratory, described laboratory is airtight laboratory and is dismountable, is provided with temperature control equipment and humidity conditioner in the laboratory; Be provided with the equivalent material simulating testing stand in the described laboratory;
Described equivalent material simulating testing stand comprises plane equivalent material simulating testing stand and/or three-dimensional analog material simulator stand;
Described laboratory is assembled by color steel composite sandwich panel.
2. a method of utilizing the described assembled constant-humidity constant-temperature enclosed analog material simulation laboratory of claim 1 to carry out the equivalent material simulating experiment is characterized in that, comprising:
At first, similar material model is placed on the equivalent material simulating testing stand in the laboratory; Then, the laboratory is airtight, carry out the equivalent material simulating experiment;
The breadboard temperature and humidity of control is in the scope that experiment needs in whole experiment.
3. the method for equivalent material simulating experiment according to claim 2, it is characterized in that, described equivalent material simulating experiment comprises, under temperature of setting and damp condition, measure the time dependent hardening process curve of analog material parameter, described analog material parameter comprises moisture content w, elastic modulus E, Poisson's Ratio μ and/or the uniaxial compressive strength σ of analog material
0
4. the method for equivalent material simulating experiment according to claim 3, it is characterized in that, described equivalent material simulating experiment also comprises, according to the design load of described analog material parameter and the error amount between the practical measurement value, according to theoretical formula by the relevant theoretical derivation of rock mechanics, experimental result is carried out the error compensation computing, and described error compensation comprises following at least a:
Strata displacement error compensation, the compensation of rock stratum strain error and terrane stress error compensation.
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| CN101244397B true CN101244397B (en) | 2010-12-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103399505B (en) * | 2013-07-23 | 2016-01-06 | 中国矿业大学 | Intensity of similar material model watch-dog |
| CN103575857A (en) * | 2013-09-27 | 2014-02-12 | 安徽理工大学 | Method for maintaining constant temperature and constant humidity of similar simulation test |
| CN105527403B (en) * | 2016-01-20 | 2017-11-17 | 安徽理工大学 | A kind of analog simulation experimental rig and test method applied to coal and rock |
| CN110204266A (en) * | 2019-06-27 | 2019-09-06 | 辽宁工程技术大学 | A kind of elastic-plastic model test analog material and preparation method thereof |
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| SU701874A1 (en) * | 1977-08-22 | 1979-12-05 | Научно-Исследовательский Горнорудный Институт | Device for turning a cargo about horizontal axis |
| CN2195122Y (en) * | 1994-04-30 | 1995-04-19 | 西安矿业学院 | Combined stacked body similar material simulation experiment device |
| CN1759996A (en) * | 2005-02-18 | 2006-04-19 | 刘亚州 | Glove box |
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2007
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU701874A1 (en) * | 1977-08-22 | 1979-12-05 | Научно-Исследовательский Горнорудный Институт | Device for turning a cargo about horizontal axis |
| CN2195122Y (en) * | 1994-04-30 | 1995-04-19 | 西安矿业学院 | Combined stacked body similar material simulation experiment device |
| CN1759996A (en) * | 2005-02-18 | 2006-04-19 | 刘亚州 | Glove box |
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| 崔希民等.岩层与地表移动相似材料模拟试验的误差分析.岩石力学与工程学报21 12.2002,21(12),1828页. * |
| 徐文胜 等.岩爆模拟材料的筛选试验研究.岩石力学与工程学报19.2000,19873-877. |
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Owner name: LONGKOU MINING INDUSTRY GROUP CO., LTD. |
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Inventor after: Gao Yanfa Inventor after: Chang Ying Inventor after: Ding Xiukai Inventor before: Gao Yanfa |
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Effective date of registration: 20111103 Address after: 100083 Beijing City, Haidian District Institute of Rutosids No. 11 Co-patentee after: Longkou Mining Group Co., Ltd. Patentee after: China University of Mining & Technology, Beijing Address before: 100083 Beijing City, Haidian District Institute of Rutosids No. 11 Patentee before: China University of Mining & Technology, Beijing |
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