CN105865942A - Shearing box of rock mass structure face shearing performance test system - Google Patents
Shearing box of rock mass structure face shearing performance test system Download PDFInfo
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- CN105865942A CN105865942A CN201610348937.7A CN201610348937A CN105865942A CN 105865942 A CN105865942 A CN 105865942A CN 201610348937 A CN201610348937 A CN 201610348937A CN 105865942 A CN105865942 A CN 105865942A
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- rock mass
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- cuboid cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
Abstract
The invention discloses a shearing box of a rock mass structure face shearing performance test system. The shearing box comprises an upper shearing box body and a lower shearing box body, and the upper shearing box body and the lower shearing box body are each a first semi-open cuboidal cavity which is formed by fixedly connecting an outer shearing box, a U-shaped plate, a left vertical plate, a right vertical plate, a front vertical plate and a rear vertical plate through bolts. According to the shearing box, the U-shaped plates, the left vertical plates, the right vertical plates, the front vertical plates and the rear vertical plates which are of different sizes are disassembled and assembled through bolt devices, thus the upper shearing box body and the lower shearing box body can form the cuboidal cavities of different sizes, and it is convenient to conduct direct shear tests on square rock mass structure face samples of more sizes; square sleeving tubes are mounted inside the cuboidal cavities through the bolt devices, the direct shear tests of cylindrical rock mass structure face samples can be completed, and thus the direct shear tests of rock mass structure face samples of different sizes and types are achieved so that different research purposes can be achieved.
Description
Technical field
The present invention relates to rock mass mechanics laboratory experiment field, be specifically related to the shear box of a kind of rock mass discontinuity shearing performance test system.
Background technology
Rock mass is made up of structure and structural plane, and the mechanical property of structural plane is mainly manifested in normal deformation, detrusion and shearing strength three aspect.In low stress area, engineering rock mass unstability is mainly manifested in rock mass along structural plane generation shear deformation breaks down, therefore commonly uses the rock mass structural plane shearing strength important indicator as evaluation engineering rock stability.
Rock mass mechanics laboratory test is the important channel of research structure facial disfigurement and strength characteristics.Wherein, direct shear test facilitates controlled loading path, it is easy to obtain normal dimensions and shear parameters, is the first-selected test method of cognitive structure face shearing behavior.
The shearing strength of rock mass discontinuity has obvious dimensional effect, restriction due to current direct shear test instrument shear box size, the Research on Size Effect of structural plane shear strength is not perfect, the stable threshold of the dimensional effect of structural face shear strength does not understands, the Research on Size Effect of structural plane dynamic shear strength still belongs to blank, and the Research on Size Effect of reinforcement structure face shearing strength is significant for obtaining structural face shear strength parameter and evaluation rock mass engineering project stability.
Summary of the invention
For solving the problems referred to above, the invention provides the shear box of a kind of rock mass discontinuity shearing performance test system, the structure of this shear box is designed to for different size, different types of rock mass discontinuity sample are carried out direct shear test.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of shear box of rock mass discontinuity shearing performance test system, including upper shear box and down cut box, described upper shear box and described down cut box all for by shear outer box, U-board, left and right riser and front and back riser be bolted and fix the first semi-open cuboid cavity of constituting.
nullPreferably，The outer box of described shearing includes the about first sidewall、First front-rear side walls and the first base plate，About first sidewall、First front-rear side walls and the first base plate constitute semi-open cuboid cavity，And first the height of front-rear side walls less than the height of the about first sidewall，It is easy to observation and shoots with video-corder failure by shear process，Described U-board includes the second base plate and the about second sidewall，Second base plate external and the contact of the first base plate interior，Described first front-rear side walls、Second base plate and the about second sidewall are bolted fixing composition the second semi-open cuboid cavity，About second side wall ends flushes with the about first side wall ends，Described left and right riser respectively with the about second sidewall and the second contacts baseplate，First front-rear side walls and described left and right riser are bolted fixing composition the 3rd semi-open cuboid cavity，The end of described left and right riser flushes with the about second side wall ends，First front-rear side walls is bolted fixing with described riser front and back，Described left and right riser constitutes the 4th semi-open cuboid cavity with described riser front and back，Before and after described, the end of riser is less than described first front-rear side walls end.
Preferably, the inner bottom surface size of described first semi-open cuboid cavity is equivalently-sized with the second semi-open cuboid cavity outer bottom.
Preferably, the size of described left and right riser is equivalently-sized with the medial wall, left and right of the second semi-open cuboid cavity.
Preferably, described front and back riser, left and right riser and U-board are respectively provided with various different size, to meet different size, the direct shear test requirement of dissimilar rock mass discontinuity sample.
The method have the advantages that
Various sizes of U-board, left and right riser and front and back riser is dismounted, so that upper shear box and down cut box can form various sizes of cuboid cavity, in order to more multiple dimensioned square rock mass discontinuity sample is carried out direct shear test by bolt device；At cuboid cavity inside, square sleeve is installed by bolt device and can complete the direct shear test of cylindrical structural interview sample, it is achieved thereby that different size, different types of rock mass discontinuity sample are carried out direct shear test to reach different research purpose.
Accompanying drawing explanation
Fig. 1 is the structural representation shearing outer box in a kind of preferred embodiment of the present invention；
Fig. 2 is the structural representation of U-board in a kind of preferred embodiment of the present invention；
Fig. 3 is to shear outer box, the structural representation of U-board combination in a kind of preferred embodiment of the present invention；
Fig. 4 is left and right riser and the structural representation of front and back riser in a kind of preferred embodiment of the present invention；
Fig. 5 is to shear outer box, U-board, left and right riser and the structural representation of riser combination front and back in a kind of preferred embodiment of the present invention；
Fig. 6 is the structural representation of U-board in a kind of preferred embodiment of the present invention；
Fig. 7 is Fig. 5 and the structural representation of Fig. 6 combination；
Fig. 8 is left and right riser and the structural representation of front and back riser in a kind of preferred embodiment of the present invention；
Fig. 9 is Fig. 7 and the structural representation of Fig. 8 combination；
Figure 10 is the structural representation of U-board in a kind of preferred embodiment of the present invention；
Figure 11 is Fig. 9 and the structural representation of Figure 10 combination；
Figure 12 is left and right riser and the structural representation of front and back riser in a kind of preferred embodiment of the present invention；
Figure 13 is Figure 11 and the structural representation of Figure 12 combination；
Figure 14 is the structural representation of U-board in a kind of preferred embodiment of the present invention；
Figure 15 is Figure 13 and the structural representation of Figure 14 combination；
Figure 16 is the structural representation of square sleeve in a kind of preferred embodiment of the present invention；
Figure 17 is Figure 13 and the structural representation of Figure 16 combination；
In figure: (a) front view；(b) side view；(c) top view；
The upper shear box of 1-；2-down cut box；3-shears outer box；4-U shape plate；About 5-riser；Riser before and after 6-；7-square sleeve.
Detailed description of the invention
In order to make objects and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As Figure 1-Figure 5, embodiments provide the shear box of a kind of rock mass discontinuity shearing performance test system, including upper shear box 1 and down cut box 2, described upper shear box 1 and described down cut box 2 all for by shear outer box 3, U-board 4, left and right riser 5 and front and back riser 6 be bolted and fix the first semi-open cuboid cavity of constituting.
nullPreferably，The outer box 3 of described shearing includes the about first sidewall、First front-rear side walls and the first base plate，About first sidewall、First front-rear side walls and the first base plate constitute semi-open cuboid cavity，And first the height of front-rear side walls less than the height of the about first sidewall，It is easy to observation and shoots with video-corder failure by shear process，Described U-board 4 includes the second base plate and the about second sidewall，Second base plate external and the contact of the first base plate interior，Described first front-rear side walls、Second base plate and the about second sidewall are bolted fixing composition the second semi-open cuboid cavity，About second side wall ends flushes with the about first side wall ends，Described left and right riser 5 respectively with the about second sidewall and the second contacts baseplate，First front-rear side walls and described left and right riser 5 are bolted fixing composition the 3rd semi-open cuboid cavity，The end of described left and right riser 5 flushes with the about second side wall ends，First front-rear side walls is bolted fixing with described riser 6 front and back，Described left and right riser 5 constitutes the 4th semi-open cuboid cavity with described riser 6 front and back，Before and after described, the end of riser 6 is less than described first front-rear side walls end，Rock mass discontinuity sample is positioned at shear box 1 and the cuboid cavity of down cut box 2 formation.
U-board 4, left and right riser 5 and front and back riser 6 all include sizes, as shown in Fig. 6, Fig. 8, Figure 10, Figure 12, Figure 14；Various sizes of U-board 4, left and right riser 5 and front and back riser 6 are dismounted by bolt device, upper shear box 1 and down cut box 2 can form various sizes of cuboid cavity, to complete the direct shear test of more multiple dimensioned square rock mass discontinuity sample, as shown in Fig. 7, Fig. 9, Figure 11, Figure 13, Figure 15.
With reference to Figure 16 and Figure 17, in order to reach different research purpose, at cuboid cavity inside as shown in fig. 13 that, by bolt device, square sleeve 7 is installed, cylindrical structural interview sample can be carried out direct shear test.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. the shear box of a rock mass discontinuity shearing performance test system, including upper shear box (1) and down cut box (2), it is characterized in that, described upper shear box (1) and described down cut box (2) all for by shear outer box (3), U-board (4), left and right riser (5) and front and back riser (6) be bolted and fix the first semi-open cuboid cavity of constituting.
nullThe shear box of a kind of rock mass discontinuity shearing performance test system the most as claimed in claim 1，It is characterized in that，The outer box (3) of described shearing includes the about first sidewall、First front-rear side walls and the first base plate，About first sidewall、First front-rear side walls and the first base plate constitute semi-open cuboid cavity，And first the height of front-rear side walls less than the height of the about first sidewall，Described U-board (4) includes the second base plate and the about second sidewall，Second base plate external and the contact of the first base plate interior，Described first front-rear side walls、Second base plate and the about second sidewall are bolted fixing composition the second semi-open cuboid cavity，About second side wall ends flushes with the about first side wall ends，Described left and right riser (5) respectively with the about second sidewall and the second contacts baseplate，First front-rear side walls and described left and right riser (5) are bolted fixing composition the 3rd semi-open cuboid cavity，The end of described left and right riser (5) flushes with the about second side wall ends，First front-rear side walls is bolted fixing with described riser (6) front and back，Described left and right riser (5) constitutes the 4th semi-open cuboid cavity with described riser (6) front and back，Before and after described, the end of riser (6) is less than described first front-rear side walls end.
The shear box of a kind of rock mass discontinuity shearing performance test system the most as claimed in claim 1, it is characterised in that the inner bottom surface size of described first semi-open cuboid cavity is equivalently-sized with the second semi-open cuboid cavity outer bottom.
The shear box of a kind of rock mass discontinuity shearing performance test system the most as claimed in claim 1, it is characterised in that the size of described left and right riser (5) is equivalently-sized with the medial wall, left and right of the second semi-open cuboid cavity.
The shear box of a kind of rock mass discontinuity shearing performance test system the most as claimed in claim 1, it is characterized in that, before and after described, riser (6), left and right riser (5) and U-board (4) are respectively provided with various different size, to meet different size, the direct shear test requirement of dissimilar rock mass discontinuity sample.
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| CN201610348937.7A CN105865942B (en) | 2016-05-24 | 2016-05-24 | A kind of shear box of rock mass discontinuity shearing performance test system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290007A (en) * | 2016-09-28 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | A kind of rock stretching and compression dual shear test device and method |
| CN107991172A (en) * | 2017-12-15 | 2018-05-04 | 浙江科技学院 | One kind is based on the more dimensional structure face shear box assemble methods of limited block combined type |
| CN108072574A (en) * | 2017-12-11 | 2018-05-25 | 中国科学院地质与地球物理研究所 | It tests rock mass discontinuity and shears anisotropic shear box |
| CN108181187A (en) * | 2017-12-15 | 2018-06-19 | 浙江科技学院 | Suitable for the stepless adjustable shear box in more dimensional structure faces |
| CN108362579A (en) * | 2018-05-25 | 2018-08-03 | 中国电建集团成都勘测设计研究院有限公司 | Portable rock mass direct shearing test device |
| CN108426784A (en) * | 2017-12-15 | 2018-08-21 | 浙江科技学院 | A kind of structural plane shear box assemble method based on combined multi-stage limiting plate |
| CN108593459A (en) * | 2017-12-15 | 2018-09-28 | 浙江科技学院 | Based on the more dimensional structure face shear boxs of limited block combined type |
| CN109164038A (en) * | 2018-08-03 | 2019-01-08 | 中国矿业大学(北京) | Coarse fissure-plane shearing slip Dynamic stress field test macro under Dynamic Loading |
| CN109342166A (en) * | 2018-12-03 | 2019-02-15 | 中国科学院地质与地球物理研究所 | Sampling die for rock mass discontinuity shearing test |
| WO2019114550A1 (en) * | 2017-12-11 | 2019-06-20 | 中国科学院地质与地球物理研究所 | Shear box for testing shear anisotropy of structural surface of rock body |
| CN110411822A (en) * | 2019-07-15 | 2019-11-05 | 中国科学院地质与地球物理研究所 | For testing the shear box of rock mass discontinuity circulation shear characteristic |
| CN112630013A (en) * | 2021-02-02 | 2021-04-09 | 石家庄铁道大学 | Jointed rock mass sample shearing test equipment |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290007A (en) * | 2016-09-28 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | A kind of rock stretching and compression dual shear test device and method |
| WO2019114550A1 (en) * | 2017-12-11 | 2019-06-20 | 中国科学院地质与地球物理研究所 | Shear box for testing shear anisotropy of structural surface of rock body |
| GB2584799A (en) * | 2017-12-11 | 2020-12-16 | Inst Geology & Geophysics Cas | Shear box for testing shear anisotropy of structural surface of rock body |
| CN108072574A (en) * | 2017-12-11 | 2018-05-25 | 中国科学院地质与地球物理研究所 | It tests rock mass discontinuity and shears anisotropic shear box |
| GB2584799B (en) * | 2017-12-11 | 2022-06-01 | Inst Geology & Geophysics Cas | Shear box for testing shear anisotropy of rock mass discontinuities |
| CN108072574B (en) * | 2017-12-11 | 2024-01-16 | 中国科学院地质与地球物理研究所 | Shear box for testing shear anisotropy of rock mass structural surface |
| CN108181187A (en) * | 2017-12-15 | 2018-06-19 | 浙江科技学院 | Suitable for the stepless adjustable shear box in more dimensional structure faces |
| CN108593459A (en) * | 2017-12-15 | 2018-09-28 | 浙江科技学院 | Based on the more dimensional structure face shear boxs of limited block combined type |
| CN108426784A (en) * | 2017-12-15 | 2018-08-21 | 浙江科技学院 | A kind of structural plane shear box assemble method based on combined multi-stage limiting plate |
| CN107991172A (en) * | 2017-12-15 | 2018-05-04 | 浙江科技学院 | One kind is based on the more dimensional structure face shear box assemble methods of limited block combined type |
| CN108181187B (en) * | 2017-12-15 | 2023-10-17 | 浙江科技学院 | Stepless adjustable shearing box suitable for multi-size structural surface |
| CN108362579A (en) * | 2018-05-25 | 2018-08-03 | 中国电建集团成都勘测设计研究院有限公司 | Portable rock mass direct shearing test device |
| CN109164038A (en) * | 2018-08-03 | 2019-01-08 | 中国矿业大学(北京) | Coarse fissure-plane shearing slip Dynamic stress field test macro under Dynamic Loading |
| CN109342166A (en) * | 2018-12-03 | 2019-02-15 | 中国科学院地质与地球物理研究所 | Sampling die for rock mass discontinuity shearing test |
| CN109342166B (en) * | 2018-12-03 | 2023-09-05 | 中国科学院地质与地球物理研究所 | Sample preparation die for shear test of rock mass structural surface |
| CN110411822A (en) * | 2019-07-15 | 2019-11-05 | 中国科学院地质与地球物理研究所 | For testing the shear box of rock mass discontinuity circulation shear characteristic |
| US10876944B1 (en) | 2019-07-15 | 2020-12-29 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Shear box for testing cyclic shear characteristics of a rock mass discontinuity |
| CN110411822B (en) * | 2019-07-15 | 2020-02-14 | 中国科学院地质与地球物理研究所 | Shearing box for testing cyclic shearing characteristics of rock mass structural plane |
| CN112630013B (en) * | 2021-02-02 | 2022-01-18 | 石家庄铁道大学 | Jointed rock mass sample shearing test equipment |
| CN112630013A (en) * | 2021-02-02 | 2021-04-09 | 石家庄铁道大学 | Jointed rock mass sample shearing test equipment |
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| CN105865942B (en) | 2018-05-25 |
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