CN109580312B - Slope forming support test device and method for model test - Google Patents
Slope forming support test device and method for model test Download PDFInfo
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- CN109580312B CN109580312B CN201910037283.XA CN201910037283A CN109580312B CN 109580312 B CN109580312 B CN 109580312B CN 201910037283 A CN201910037283 A CN 201910037283A CN 109580312 B CN109580312 B CN 109580312B
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- guide rail
- test
- angle
- slope
- support
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The application discloses a slope forming support test device and a test method for a model test, which solve the problem that a slope is required to be cut when filling materials are arranged in the prior art, and have the beneficial effects of simple operation, convenient installation and disassembly and convenient formation of a test body, and the scheme is as follows: the slope forming support test device for the model test comprises a test box and a support, wherein the test box is used for setting a filler; the support can be detachably connected with the test box and comprises a guide rail which can be obliquely upwards arranged relative to the bottom surface of the test box; the support pieces are supported by the guide rail and are detachably arranged relative to the guide rail.
Description
Technical Field
The application relates to the technical field of civil construction, in particular to a slope forming support test device and a slope forming support test method for model test.
Background
In slope engineering, it is generally necessary to perform an indoor downsizing model test to perform related researches on a slope, including stability, bearing capacity, fracture surface, and the like of the slope. There are a large number of model tests for slopes at home and abroad at present, in the test process, different types of fillers (sand, silt, clay and the like) need to form a slope with a certain angle, and the current practice is to firstly fill the slope to a certain height and then cut the slope. However, when the filler is sand, the dry sand cannot cut the slope due to no cohesive force, and only a certain amount of water can be added into the dry sand to form wet sand with a certain water content, so that the slope can be cut.
The inventors have found that the above-described disadvantage is evident in that not only is a need for multiple filling of the filler during the filling phase, but also a large amount of filler needs to be removed, especially when the gradient is small, the amount of removal is greater. In addition, this approach has been difficult to handle when dry sand that cannot be cut is formed into a side slope for the study of dry sand formation inhibition.
Therefore, a new research design is required for a test method of slope formation in a model test.
Disclosure of Invention
In order to overcome the defects in the prior art, the application provides a slope forming support test device for a model test, which is simple to manufacture and operate, easy to install and disassemble and capable of effectively forming a slope with a certain angle.
The concrete scheme of the slope forming bracket test device for the model test is as follows:
a ramp-forming stand test device for model testing, comprising:
the test box is used for setting a filler;
the support can be detachably connected with the test box and comprises a guide rail which can be obliquely upwards arranged relative to the bottom surface of the test box;
the support sheets are supported by the guide rail, the end parts of the adjacent support sheets are attached, the support sheets are detachably arranged relative to the guide rail, and the support sheets are used for blocking the filler and preventing the filler from flowing sideways.
According to the test device, the side slope with the set angle is formed in the test box through the arrangement of the support and the support piece, the side slope is cut after the whole packing is not needed, the whole workload is effectively reduced, and the operation is convenient.
Further, the support includes two sets of, and two sets of interval sets for the distance setting, and every support of group all includes the guide rail and with guide rail swing joint's couple body, the couple body is whole L type, the short side and the guide rail of couple body are connected, long side tip sets up the couple.
Further, in order to facilitate the adjustment of the angle of the guide rail relative to the bottom surface of the test box, the hook body is detachably connected with the guide rail, the guide rail is connected with the hook body through screws, the angles of the hook body and the guide rail can be adjusted by unscrewing the screws, and the angle can be kept by screwing the screws. The end part of the guide rail connected with the hook body is provided with an angle line, so that the angle of the guide rail can be conveniently controlled.
Further, the guide rail lateral part sets up a plurality of openings, the supporting plate tip can insert the opening setting, and the opening is rectangular, and the setting of the supporting plate of being convenient for, the opening one-to-one that every supporting plate tip and guide rail set up installs the supporting plate through the inboard opening of two sets of guide rails, and the installation of not only being convenient for the supporting plate also makes things convenient for the demolition of supporting plate.
Further, the supporting sheet is the steel sheet, and the steel sheet has certain elasticity, is convenient for insert in the opening of guide rail, and the length of supporting sheet equals with the width of test box, in addition, set up the lug at the steel sheet surface, the lug exceeds the lateral part of steel sheet for after setting up preceding steel sheet, inject the position of second piece steel sheet through the lug, perhaps, one of them sets up the lug of adjacent steel sheet, and another sets up the draw-in groove, lug and draw-in groove cooperation in order to guarantee the laminating degree of adjacent steel sheet.
Further, the support is abutted with the side wall of the test box through a fastener, and a threaded hole is formed in the hook body for the fastener such as a bolt to be inserted into the threaded hole to be abutted with the side wall of the test box.
Further, in order to ensure better simulation of the slope, the guide rail is attached to the inner side wall of the test box.
In order to overcome the defects of the prior art, the application also provides a test method for the model test, and the slope-forming support test device for the model test is adopted.
The test method comprises the following specific steps:
according to the test requirement, adjusting the inclination angle of the guide rail relative to the bottom surface of the test box, obliquely upwards setting the guide rail, and connecting the bracket with the test box;
a first supporting sheet is arranged at the bottom side of the guide rail, and gradually filled to the height of the first steel sheet from low to high;
a second supporting piece is arranged on the side part of the first supporting piece from the bottom side of the guide rail, and the second supporting piece is gradually filled to the height of the second steel piece;
continuously arranging the support plates until the slope tops are reached, attaching the end parts of the adjacent support plates, and completing corresponding filling work;
and after filling, removing the bracket to finish slope test preparation with a set angle.
Filling filler to the bottom of the guide rail by adopting a dynamic compaction method before the first supporting sheet is arranged; or, after the first supporting sheet is inserted into the guide rail, filling is carried out by adopting a deluge method, and after each supporting sheet is arranged, filling is carried out by adopting a dynamic compaction method or a deluge method.
And when the bracket is dismantled, the hook body and the test box are firstly loosened, and then the whole bracket is taken out of the test box, so that the operation can be finished.
Further, when the filler is dry sand, the repose angle of the dry sand needs to be obtained before the test, and the inclination angle of the guide rail relative to the bottom surface of the test box is smaller than or equal to the repose angle of the dry sand.
Compared with the prior art, the application has the beneficial effects that:
1) The device can effectively travel the side slope with the required angle, can adjust the corresponding angle according to different fillers, can effectively reduce the filling amount, does not need to cut the slope, and greatly reduces the workload.
2) The device has the advantages of simple support, simple and convenient operation and relatively simple installation and disassembly.
3) The application effectively facilitates the connection of the bracket and the side wall of the test box through the arrangement of the hook body, and can realize the fixation with the test box with high stability and reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a front view of a test device according to an embodiment of the present application;
FIG. 2 is a top view of a test device according to an embodiment of the present application;
FIG. 3 is a side view of a test device according to an embodiment of the present application;
FIG. 4 is a detail view of the test device of the embodiment of the present application, showing a side view of the rail and the steel sheet;
FIG. 5 is a schematic view of a steel sheet according to an embodiment of the present application;
wherein, 1, the guide rail, 2, the couple body, 3, guide rail articulated end, 4, the steel sheet, 5, lug.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As described in the background art, the application provides a slope forming support test device for model test in order to solve the technical problems.
In an exemplary embodiment of the present application, as shown in fig. 1 to 3, a slope-forming stand test device for model test includes a test chamber made of transparent material for setting a filler; the support can be detachably connected with the test box and comprises a guide rail 1, and the guide rail 1 can be obliquely arranged relative to the bottom surface of the test box; the supporting pieces are supported by the guide rail 1, the end parts of the adjacent supporting pieces are attached, and the supporting pieces can be detached and arranged relative to the guide rail 1.
According to the test device, the side slope with the set angle is formed in the test box through the arrangement of the support and the support piece, the side slope is cut after the whole packing is not needed, the whole workload is effectively reduced, and the operation is convenient.
In order to facilitate the adjustment of the angle of the guide rail 1 relative to the bottom surface of the test box, the hook body is detachably connected with the guide rail 1. The end part of the guide rail, which is connected with the hook body, is provided with an angle line, so that the control of the angle of the guide rail is facilitated, and the hinged end of the guide rail 1 is provided with a screw, so that the angle of the guide rail 1 relative to the hook body can be kept by screwing the screw.
The guide rail 1 lateral part sets up a plurality of openings, and the supporting plate tip can insert the opening setting, and the opening is rectangular, and the setting of supporting plate of being convenient for, every supporting plate tip and the opening one-to-one that guide rail 1 set up, as shown in fig. 4, installs the supporting plate through the inboard opening of two sets of guide rails 1, not only is convenient for the installation of supporting plate, also makes things convenient for the demolishment of supporting plate.
The supporting sheet is steel sheet 4, and steel sheet 4 has certain elasticity, and steel sheet 4 is the rectangle for guarantee closely when every steel sheet 4 contacts, and can not take place the condition such as filler leakage, in order to be convenient for insert in the opening of guide rail 1, and the length of supporting sheet equals with the width of test box, in addition, as shown in fig. 5, set up lug 5 on steel sheet 4 surface, lug 5 outstanding in the lateral part of steel sheet 4 for after setting up preceding steel sheet, inject the position of second steel sheet through lug 5, perhaps, one of them sets up the lug of adjacent steel sheet, another sets up the draw-in groove, lug and draw-in groove cooperation, in order to guarantee the laminating degree of adjacent steel sheet.
In order to ensure better simulation of the side slope, the side part of the guide rail 1 is attached to the inner side wall of the test box, the length of the steel sheet 4 corresponds to the width of the test box, otherwise, the steel sheet is excessively long and can be placed in the model test box, and if the steel sheet is excessively short, the filling leakage can possibly occur. The support includes two sets of, and two sets of interval set for the distance setting, and every support of group all include guide rail 1 and with guide rail 1 swing joint's couple body 2, couple body 2 wholly be the L type, couple body 2's short side is connected with guide rail 1, long side tip sets up the couple, angle between the long side of couple body 2 and the guide rail extension line is the acute angle, guide rail 1 slope upwards sets up so that the formation of slope, through the setting of couple body 2 short sides, also be favorable to the formation of slope bottom horizontal plane, guarantee the stability of slope setting.
The bracket is fixedly connected with the side wall of the test box through a fastener, and a threaded hole is formed in the hook body for the fastener such as a bolt to be inserted into the threaded hole to be abutted with the side wall of the test box.
In order to overcome the defects of the prior art, the application also provides a test method for the model test, and the slope-forming support test device for the model test is adopted.
The test method comprises the following specific steps:
1) According to the test requirement, adjusting the inclination angle of the guide rail relative to the bottom surface of the test box, hanging the hook body of the bracket on the side wall of the test box, arranging the hook body part in the test box, arranging the guide rail obliquely upwards relative to the short side of the hook body, and filling the bottom of the guide rail with a dynamic compaction method;
2) A first supporting sheet is arranged from the bottom side of the guide rail and gradually filled to the height of the first steel sheet;
3) A second supporting piece is arranged on the side part of the first supporting piece from the bottom side of the guide rail, and the second supporting piece is gradually filled to the height of the second steel piece;
4) Continuously arranging the support plates until the slope tops are reached, attaching the end parts of the adjacent support plates, and completing corresponding filling work;
5) And after filling, removing the bracket to finish slope test preparation with a set angle.
And when the bracket is dismantled, the hook body and the test box are firstly loosened, and then the whole bracket is taken out of the test box, so that the operation can be finished.
If the rain method is adopted, a part of filling is not needed to be filled, then the first steel sheet is inserted, the first steel sheet can be directly inserted into the guide rail, then filling is carried out, and the dynamic compaction method or the rain method is adopted in the steps 2) to 4) to fill.
When the filler is dry sand, the repose angle of the dry sand needs to be obtained before the test, and the inclination angle of the guide rail relative to the bottom surface of the test box is smaller than or equal to the repose angle of the dry sand, otherwise, slump of the whole side slope can occur when the slope forming support is taken out after the filling is completed. However, the existence of pseudo-cohesion does not cause such a problem in the case of wet sand, or in the case of clay such as clay or silt.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. A slope support test device for model test, its characterized in that includes:
the test box is used for setting a filler;
the support can be detachably connected with the test box and comprises a guide rail which can be obliquely upwards arranged relative to the bottom surface of the test box;
the support pieces are supported by the guide rail and are detachably arranged relative to the guide rail;
the brackets comprise two groups, the two groups are arranged at intervals by a set distance, and each group of brackets comprises a guide rail and a hook body movably connected with the guide rail; the whole hook body is L-shaped, the short side of the hook body is connected with the guide rail, and the end part of the long side is provided with a hook; in order to facilitate the adjustment of the angle of the guide rail relative to the bottom surface of the test box, the hook body is detachably connected with the guide rail, the guide rail is connected with the hook body through a screw, the angle of the hook body and the guide rail can be adjusted by unscrewing the screw, and the angle can be kept by screwing the screw; the end part of the guide rail, which is connected with the hook body, is provided with an angle line, so that the angle of the guide rail can be conveniently controlled;
the side part of the guide rail is provided with a plurality of openings, and the end part of the supporting piece can be inserted into the openings.
2. The ramp-forming bracket test device for model testing of claim 1, wherein the support sheet is a steel sheet.
3. The apparatus of claim 1, wherein the rack is attached to the side wall of the test chamber by fasteners.
4. A test method for model test, characterized in that the slope-forming stand test device for model test according to any one of claims 1 to 3 is used.
5. The method for model test according to claim 4, wherein the specific steps are as follows:
according to the test requirement, adjusting the inclination angle of the guide rail relative to the bottom surface of the test box, and connecting the bracket with the test box;
a first supporting sheet is arranged from the bottom side of the guide rail and gradually filled to the height of the first steel sheet;
a second supporting piece is arranged on the side part of the first supporting piece from the bottom side of the guide rail, and the second supporting piece is gradually filled to the height of the second steel piece;
continuously arranging the support plates until the slope tops are reached, attaching the end parts of the adjacent support plates, and completing corresponding filling work;
and after filling, removing the bracket to finish slope test preparation with a set angle.
6. The method according to claim 5, wherein when the filler is dry sand, an angle of repose of the dry sand is obtained before the test, and the inclination angle of the guide rail with respect to the bottom surface of the test chamber is equal to or smaller than the angle of repose of the dry sand.
7. The test method for model test according to claim 6, wherein the filler is filled to the bottom of the guide rail by dynamic compaction before the first supporting sheet is arranged;
or after the first supporting sheet is inserted into the guide rail, filling is carried out by adopting a deluge method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037283.XA CN109580312B (en) | 2019-01-15 | 2019-01-15 | Slope forming support test device and method for model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037283.XA CN109580312B (en) | 2019-01-15 | 2019-01-15 | Slope forming support test device and method for model test |
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| CN109580312A CN109580312A (en) | 2019-04-05 |
| CN109580312B true CN109580312B (en) | 2023-08-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308663A (en) * | 2013-05-13 | 2013-09-18 | 西南交通大学 | Geotechnical engineering landslide model test box |
| WO2016107360A1 (en) * | 2014-12-31 | 2016-07-07 | 东北大学 | Adjustable multifunctional fractured rock mass collapse-slide testing device and use method therefor |
| CN107037195A (en) * | 2016-10-31 | 2017-08-11 | 中国地质大学（武汉） | Water-level fluctuation influences experimental rig and method to lower sleeping ice sheet talus slope stability |
| CN206930670U (en) * | 2017-07-27 | 2018-01-26 | 中国电建集团成都勘测设计研究院有限公司 | Come down simulation test device |
| CN109142685A (en) * | 2018-10-19 | 2019-01-04 | 西南交通大学 | Subgrade slope engineering model test box |
| CN209416804U (en) * | 2019-01-15 | 2019-09-20 | 山东大学 | For model test at slope stented test device |
-
2019
- 2019-01-15 CN CN201910037283.XA patent/CN109580312B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308663A (en) * | 2013-05-13 | 2013-09-18 | 西南交通大学 | Geotechnical engineering landslide model test box |
| WO2016107360A1 (en) * | 2014-12-31 | 2016-07-07 | 东北大学 | Adjustable multifunctional fractured rock mass collapse-slide testing device and use method therefor |
| CN107037195A (en) * | 2016-10-31 | 2017-08-11 | 中国地质大学（武汉） | Water-level fluctuation influences experimental rig and method to lower sleeping ice sheet talus slope stability |
| CN206930670U (en) * | 2017-07-27 | 2018-01-26 | 中国电建集团成都勘测设计研究院有限公司 | Come down simulation test device |
| CN109142685A (en) * | 2018-10-19 | 2019-01-04 | 西南交通大学 | Subgrade slope engineering model test box |
| CN209416804U (en) * | 2019-01-15 | 2019-09-20 | 山东大学 | For model test at slope stented test device |
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| CN109580312A (en) | 2019-04-05 |
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