CN104792587A - Simulation method for similar surface of field large-scale rock structural plane - Google Patents
Simulation method for similar surface of field large-scale rock structural plane Download PDFInfo
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Abstract
A simulation method for a similar surface of a field large-scale rock structural plane comprises the following steps: (1), rock structural plane region selection and surface treatment; (2), rock structural plane category judgment: sampling delineated rock, and determining the rock category, composition and mechanical parameters; (3), gluing simulation: selecting neutral gel as a simulation material, extruding the gel out of a glue bottle with a gluing gun, flatting the surface of the gel, making the gel in full contact with the rock surface, and finishing the surface; (4), glue removal treatment: when the hardness reaches a preset value, firstly taking down small wooden strips from the periphery in a clockwise direction, divorcing away from the rock surface, and keeping the original shape of reverse grains; and (5), maintenance: carrying out maintenance, and making the gel hardened. The invention provides the simulation method for the similar surface of the field large-scale rock structural plane, preparation of the model structural plane with the similar surface undulation shape can be met without field sampling, and the accuracy is higher.
Description
Technical field
The invention belongs to field of engineering technology, relate to the analogy method of a kind of field large-scale rock structural plane similarity surface, for the configuration of surface of field acquisition rock structural face, in the correlation engineering such as water conservancy, traffic, mining, geology, simulate the determination that structural plane carries out the parameters of engineering designs such as structural face shear strength.
Background technology
The Shear Strength Index of rock structural face is the important references index in engineering design, needs to carry out the shear strength test of structural plane in order to obtain Shear Strength Index.But protolith structural plane is generally compose to be stored in rock mass, and the cost of on-site sampling is high, transport difficult, and the test period is long, is difficult to the needs of satisfied a large amount of engineering test; In order to the mechanical test of structural face shear strength can be carried out, analogue formation structural plane is needed to replace protolith structural plane.The patent No. is ZL200910154781.9, propose a kind of method for making of direct shear test structural plane model, the method is the simulation sample production to the protolith structural plane of having sampled carrying out different size, obtains the model structure face that anastomose property that is the same with protolith structural plane configuration of surface, upper lower burrs structural plane is good.Protolith structural plane can not be destroyed in the model structure face made by the method, meets the requirement making different size model structure face, decreases the number of samples of field protolith structural plane, reduce experimentation cost.But the primary work of the method also needs to adopt meet the protolith structural plane of testing requirements, and it is perfect to require that the surface undulation form of protolith structural plane in sampling process needs, and also must not have any destruction in transportation.Also need the sample carrying out field in this patent visible, and higher requirement is proposed to the sampling of protolith structural plane.And how can sample without the need to the protolith in field, the configuration of surface similar to protolith structural plane can be obtained, the making requirement of various sample in patent No. ZL200910154781.9 can be met again, further cost and the test period of reducing test is the developing direction of model structure face shear strength test.
Summary of the invention
Field acquisition sample is needed in order to solve existing rock structural face sample production method, the deficiency that cost is high, the cycle is long, the invention provides the analogy method of a kind of field large-scale rock structural plane similarity surface, just can meet the model structure face making similarity surface rolling shape without the need to field sampling, accuracy is higher.
The technical solution adopted for the present invention to solve the technical problems is:
An analogy method for field large-scale rock structural plane similarity surface, described analogy method comprises the steps:
(1) the selected and surface treatment in rock structural face region: delimit the rock surface texture region needing simulation, and this surface is cleared up, the rubble removing surface is mixed block, and the region separation of delimitation is opened by the little batten re-using setting thickness;
(2) rock structural face classification judges: to the rock sampling delimited, measure the classification of its rock, composition and main mechanical parameter;
(3) gluing simulation: choose neutral gel as simulation material, with making glue rifle, it is got in glue bottle, carry out the floating gel that makes to gel surface to contact completely with rock surface, and by its surfacing, the minimum thickness of gel rubber material thinnest part controls at 5 ~ 10mm;
(4) degumming process: treat that hardness reaches preset value, first little batten is taken off from its surrounding successively in a clockwise direction, the characteristic surperficial applying one that takes the lead in thereon of recycling gel itself is not more than an extraneous load of its elastic telescopic intensity, make it spin off from rock surface, and keep the lines former state of its configuration of surface;
(5) maintenance: be laid on level ground by silicone adhesive model, carries out maintenance, makes gel hardening.
Further, described analogy method also comprises the steps:
(6) repeat above-mentioned steps (3) ~ (5), gather the anti-texture of more than four rock surfaces, choose integrality comparatively strong, texture is silicone adhesive model comparatively clearly;
(7) utilize the equipment such as configuration of surface measuring instrument to obtain the surface undulation form in protolith structural plane and model structure face, its similarity degree of comparative analysis, when similarity degree is more than 95%, can meet testing requirements.
Further again, described step (3) described gel is one-component silicone adhesive.
Further, in described step (3), the scraper plate made with glass, spreads a small amount of clear water on its surface.
In described step (3), when the surface area that need simulate exceedes preset value, the method that gluing screeding and compaction of selecting to take the lead in from corner comes together to centre again simulates its configuration of surface.
In described step (5), the environment of maintenance is: more than 23 DEG C, 50% relative humidity.
Beneficial effect of the present invention is mainly manifested in: (1) solves the problem that protolith gathers transport difficult; (2) the higher rock surface shape of similarity degree can be copied comparatively accurately; (3) silicone adhesive dead weight is comparatively light, flexibly more convenient compared with protolith; (4) to take off sclerosis rear surface form relatively stable for silicone adhesive, can reuse, the Cost Problems of a part for solution; (5) the unhardened front caking ability of silicone adhesive material is better, can be attached to the rock surface of inclination and be unlikely to come off; (6) rock surface regional choice is relatively flexible, can carry out its surface simulation in specific region; (7) the method can not destroy the surface of rock, but the configuration of surface of the good simulation rock of energy; (8) silicone adhesive has the process of sclerosis, and before not completing sclerosis, departed from protolith surface, after hardening completely, its intensity is high, the bottom surface template that can make using it as model test piece.
Embodiment
The invention will be further described below.
An analogy method for field large-scale rock structural plane similarity surface, described analogy method comprises the steps:
(1) the selected and surface treatment in rock structural face region: delimit the rock surface texture region needing simulation, and this surface is cleared up, the rubble removing surface is mixed block, and the region separation of delimitation is opened by the little batten re-using setting thickness;
(2) rock structural face classification judges: to the rock sampling delimited, measure the classification of its rock, composition and mechanics parameter;
(3) gluing simulation: choose neutral gel as simulation material, with making glue rifle, it is got in glue bottle, carry out the floating gel that makes to gel surface to contact completely with rock surface, and by its surfacing, the minimum thickness of gel rubber material thinnest part controls at 5 ~ 10mm; , be preferably 5mm;
(4) degumming process: treat that hardness reaches preset value, first little batten is taken off from its surrounding successively in a clockwise direction, the characteristic surperficial applying one that takes the lead in thereon of recycling gel itself is not more than an extraneous load of its elastic telescopic intensity, make it spin off from rock surface, and keep the lines former state of its configuration of surface;
(5) maintenance: carry out maintenance, makes gel hardening.
Further, described analogy method also comprises the steps:
(6) repeat above-mentioned steps (3) ~ (5), gather the anti-texture of more than four rock surfaces, choose integrality comparatively strong, texture is silicone adhesive model comparatively clearly.
Further again, described step (3) described gel is one-component silicone adhesive.
Further, in described step (3), the scraper plate made with glass, spreads a small amount of clear water on its surface.
In described step (3), when the surface area that need simulate exceedes preset value (such as 50cm*50cm), the method that gluing screeding and compaction of selecting to take the lead in from corner comes together to centre again simulates its configuration of surface.
In described step (5), the environment of maintenance is: more than 23 DEG C, 50% relative humidity.
The analogy method of the field large-scale rock structural plane similarity surface of the present embodiment, comprises following steps:
(1) field rock surface delimit the region of test: choose and need the rock surface of research to carry out the cleaning on surface to it, and be divided into several region, be numbered.
(2) Region dividing: use the little batten of 3mm thickness the region separation of delimitation to be opened.
(3) gluing: choose neutral one-component silicone adhesive starting material, with making glue rifle, it is got in glue bottle, then with the scraper plate that glass is made, a small amount of clear water is spread as lubricant on its surface, carrying out screeding and compaction to silicone adhesive surface makes silicone adhesive contact completely with rock surface, and by its surfacing.Wherein need to ensure that the minimum thickness of silicone adhesive controls at about 3mm.If the surface area that need simulate is excessive, the lines former state of the method simulation configuration of surface that gluing screeding and compaction of can selecting to take the lead in from corner comes together to centre again.
(4) come unstuck: treat that its hardness reaches 30%, first little batten is taken off from its surrounding successively in a clockwise direction, the characteristic surperficial applying one that takes the lead in thereon of recycling silicone adhesive itself is not more than an extraneous load of its elastic telescopic intensity, make it spin off from rock surface, and keep the lines former state of its configuration of surface.
(5) maintenance: more than 23 DEG C, under the environment of 50% relative humidity, exceeds about 5cm on silicone adhesive surface and has disposed water-proof die plate, prevents rainwater to be mixed in silicone adhesive and has an impact to silicone adhesive sclerosis.For shorten curing time can be suitable raising local environment in temperature and humidity, with accelerate its sclerosis condensation time.
Profilograph is utilized to carry out surface undulation morphometry to protolith structural plane and silicone adhesive model, the similarity on comparative simulation surface and protolith surface.Be of a size of 100cm*100cm (see table 1) for model configuration face, the surface undulation degree of upper and lower dish structural plane and the numerical value of roughness coefficient are more or less the same, the upper and lower dish structural plane roughness coefficient JRC of different scale
nmaximum relative error be less than 7.14%, average error is 4.54%.This analogy method of visible employing can meet testing requirements preferably.Table 1 is the fluctuating difference R of structural plane
ywith roughness coefficient JRC
n
Table 1
The transparent neutral silicone adhesive raw material that the silicone adhesive that the present embodiment uses is one-component; Firm time is undertaken by its standard, namely can the silicone adhesive of hardened surface 3mm after 24 hours; The silicone adhesive material used preferably has certain foaming and intumescing performance; There is the elasticity coefficient of some strength, ensureing that its configuration of surface when coming off does not change.
Claims (6)
1. an analogy method for field large-scale rock structural plane similarity surface, is characterized in that: described analogy method comprises the steps:
(1) the selected and surface treatment in rock structural face region: delimit the rock surface texture region needing simulation, and this surface is cleared up, the rubble removing surface is mixed block, and the region separation of delimitation is opened by the little batten re-using setting thickness;
(2) rock structural face classification judges: to the rock sampling delimited, measure the classification of its rock, composition and mechanics parameter;
(3) gluing simulation: choose neutral gel as simulation material, with making glue rifle, it being got in glue bottle, the floating gel that makes being carried out to gel surface and contacts completely with rock surface, and by its surfacing, the minimum thickness of gel controls at 3 ~ 8mm;
(4) degumming process: treat that hardness reaches preset value, first little batten is taken off from its surrounding successively in a clockwise direction, the characteristic surperficial applying one that takes the lead in thereon of recycling gel itself is not more than an extraneous load of its elastic telescopic intensity, make it spin off from rock surface, and keep the former state of its reverse lines;
(5) maintenance: carry out maintenance, makes gel hardening.
2. the analogy method of field as claimed in claim 1 large-scale rock structural plane similarity surface, is characterized in that: described analogy method also comprises the steps:
(6) repeat above-mentioned steps (3) ~ (5), gather the anti-texture of more than four rock surfaces, choose integrality comparatively strong, texture is silicone adhesive model comparatively clearly;
(7) utilize the equipment such as configuration of surface measuring instrument to obtain the surface undulation form in protolith structural plane and model structure face, its similarity degree of comparative analysis, when similarity degree is more than 95%, can meet testing requirements.
3. the analogy method of field as claimed in claim 1 or 2 large-scale rock structural plane similarity surface, it is characterized in that: in described step (3), described gel is one-component silicone adhesive.
4. the analogy method of field as claimed in claim 3 large-scale rock structural plane similarity surface, it is characterized in that: in described step (3), the scraper plate made with glass, spreads a small amount of clear water on its surface.
5. the analogy method of field as claimed in claim 3 large-scale rock structural plane similarity surface, it is characterized in that: in described step (3), when the surface area that need simulate exceedes preset value (such as 50cm*50cm), the method that gluing screeding and compaction of selecting to take the lead in from corner comes together to centre again simulates its configuration of surface.
6. the analogy method of field as claimed in claim 3 large-scale rock structural plane similarity surface, it is characterized in that: in described step (5), the environment of maintenance is: more than 23 DEG C, 50% relative humidity.
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Cited By (5)
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| CN105865868A (en) * | 2016-04-01 | 2016-08-17 | 四川大学 | Artificial preparation method for rock sample with structural surface in different directions |
| CN108801202A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of soil surface local roughness detection |
| CN108801204A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of soil surface roughness detection sampler and sampling method |
| CN108801203A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of farmland dry soil roughness measurement |
| CN109520798A (en) * | 2018-11-09 | 2019-03-26 | 绍兴文理学院 | The production method of more sizes, the multi-angle structure interview spliced mold of sample based on 3D printing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108801204A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of soil surface roughness detection sampler and sampling method |
| CN108801203A (en) * | 2018-07-24 | 2018-11-13 | 佛山市高明曦逻科技有限公司 | A kind of sample collection method of farmland dry soil roughness measurement |
| CN109520798A (en) * | 2018-11-09 | 2019-03-26 | 绍兴文理学院 | The production method of more sizes, the multi-angle structure interview spliced mold of sample based on 3D printing |
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