Angle-variable space block body sliding model testing platform and using method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of block sliding and model test, applied in the field of geotechnical engineering, it can solve the problem of inability to simulate the sliding of rock blocks, and achieve the effect of changing the angle flexibly
Active Publication Date: 2015-02-25
NORTHEASTERN UNIV LIAONING
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] At present, most of the research on the movable blocks in the rock mass adopts numerical simulation analysis methods, and the sliding angle and the sliding process are determined according to the structure plane and some parameters of the rock blocks. The platform has the disadvantage of rotating at several fixed angles. Due to the randomness of the sliding angle of the block in the actual project, it is impossible to simulate the sliding at any angle in the space of the rock block.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Embodiment 1: select the wedge-shaped mold that contact surface is granite for selection, block body is granite material, and the coefficient of friction between mold and block body is 0.57,
[0024] (1) Keep the floor 1 of the variable-angle space block sliding model test platform level by adjusting the feet 4;
[0025] (2) Adjust the angle of the inclined table 2 and the base plate to 0°, and simultaneously adjust the angle of the turntable 3 to 0°, and put the mold 9 with the block on the turntable 3;
[0026] (3) Rotate the rotary table 3 to 0° and fix it with the locking pin 7, and rotate the screw rod 5 by turning the hand wheel 8, so that the tilting table 2 rotates slowly around the rotation axis until the block slides down, and immediately stops the screw. The rotation of bar 5, the scale reading of recording angle scale 6 is 25 °;
[0027] (4) Rotate the turntable 3 counterclockwise with a 10° angle difference, repeat the test process of step (3), obtain the ...
Embodiment 2
[0030] Embodiment 2: select the wedge-shaped mold that the contact surface is sandpaper for use, the block is a concrete material, and the friction coefficient between the mold and the block is 0.82,
[0031] (1) Keep the floor 1 of the variable-angle space block sliding model test platform level by adjusting the feet 4;
[0032] (2) Adjust the angle of the inclined table 2 and the base plate to 0°, and simultaneously adjust the angle of the turntable 3 to 0°, and put the mold 9 with the block on the turntable 3;
[0033] (3) Rotate the rotary table 3 to 0° and fix it with the locking pin 7, and rotate the screw rod 5 by turning the hand wheel 8, so that the tilting table 2 rotates slowly around the rotation axis until the block slides down, and immediately stops the screw. The rotation of bar 5, the scale reading of record angle scale 6 is 28 °;
[0034] (4) Rotate the turntable 3 counterclockwise with a 10° angle difference, repeat the test process of step (3), obtain the a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to the technical field of geotechnical engineering, in particular to an angle-variable space block body sliding model testing platform and a using method thereof. The platform comprises a baseboard and an inclined table, the baseboard is connected with the inclined table through a rotating shaft, a screw and a hand wheel connected with the screw are arranged at the upper end of the baseboard, and the screw is driven to rotate by rotating the hand wheel, so that the inclined table rotates with the rotating shaft as the center. An angle scale is arranged between the baseboard and the inclined table for accurately measuring the included angle between the baseboard and the inclined table, a rotating table capable of rotating freely is arranged on the inclined table, a locking nail is arranged on the rotating table, the angle of the rotating table is adjusted through the locking nail, the rotating table can be connected with molds with different friction coefficients, and foot margins are arranged at the lower end of the baseboard which is kept to be horizontal through the four foot margins. The angle-variable space block body sliding model testing platform and the using method lead experiments to be repeatable, supplements experiment results aiming at results of numerical simulation through relative experiments based on the testing platform and the using method, and provides the experiments complementariness and confirmation.
Description
technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a method for using a variable-angle space block sliding model test platform. Background technique [0002] With the continuous development of highways, railways, tunnels and other projects in our country, the stability and safety of rock masses and rock blocks have become the focus and difficulty of theoretical research and field construction. Fractured rock mass is a common unfavorable rock mass in engineering. The rock mass is neither a continuum nor a homogeneous body. There are a large number of internal defects such as micropores and microcracks in the rock, and there are discontinuities to varying degrees. During the disturbance process of engineering excavation, damage to rock mass structure is very easy to occur, and sometimes even engineering disasters are induced, all of which are related to rock mass structure. In addition, due to the incomplete under...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more