CN216671004U - Double-row anti-slide pile group physical model test device - Google Patents
Double-row anti-slide pile group physical model test device Download PDFInfo
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- CN216671004U CN216671004U CN202123270768.5U CN202123270768U CN216671004U CN 216671004 U CN216671004 U CN 216671004U CN 202123270768 U CN202123270768 U CN 202123270768U CN 216671004 U CN216671004 U CN 216671004U
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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
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Abstract
The utility model provides a double-row anti-slide pile group physical model test device, which comprises: the landslide model comprises a model frame, a slide bed arranged at the bottom of the model frame, a slide belt stacked on the slide bed, and a slide body stacked on the slide belt; the anti-slide pile group comprises double rows of anti-slide pile groups and strain gauges, wherein the double rows of anti-slide pile groups are embedded in the slide bed, the slide belt and the slide body, and the strain gauges are arranged on the double rows of anti-slide pile groups in a row; the loading device comprises a jack, and the jack provides thrust for the landslide model; and the monitoring device comprises soil pressure boxes arranged in the sliding body and slope indicating trace points arranged on the surface part of the sliding body. The double-row anti-slide pile group physical model test device can effectively research the action mechanism and the prevention and treatment effect of the double-row anti-slide pile group, is simple, convenient and practical, and is convenient to popularize.
Description
Technical Field
The utility model relates to the technical field of geological disaster model tests, in particular to a double-row anti-slide pile group physical model test device.
Background
China is rich in water resources, hydropower engineering generates electricity by means of the characteristics of water resources, however, the water storage and operation of the hydropower engineering have obvious influence on the original surrounding environment, and large-scale landslides are induced or revived. For large landslides which cannot be moved, the rationality and the effectiveness of the treatment project are directly related to the life and property safety of residents on the landslide and the safe operation of hydropower stations.
The anti-slide pile has good prevention and control effect, and is widely applied to landslide control engineering. However, since a large amount of reservoir landslides belong to typical traction type landslides, the anti-slide piles are generally arranged at the front edge of the landslide, which presents a great test for the construction of the anti-slide piles. Therefore, most practical projects adopt cast-in-situ bored piles (circular piles) capable of forming holes rapidly, and increase the number of pile rows, so as to improve the sliding resistance.
At present, a landslide physical model test becomes an effective means for researching the landslide-slide-resistant pile system evolution process, and scholars at home and abroad make certain progress, but the action mechanism and the reinforcement effect of the double-row circular slide-resistant pile group are not clearly researched.
Therefore, it is necessary to establish a physical model test device for landslide-double row anti-slide pile group to reveal the interaction mechanism of landslide-double row anti-slide pile group.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-row anti-slide pile group physical model test device, which solves the technical problem that the conventional double-row anti-slide pile group physical model test device cannot effectively monitor the trailing edge thrust of a landslide, the displacement of a landslide surface, the stress field of a landslide body, the stress field of an anti-slide pile and the deformation field of a pile body of the anti-slide pile.
In order to achieve the above object, the present invention provides a double-row anti-slide pile group physical model test device, which comprises:
the landslide model comprises a model frame, a slide bed arranged at the bottom of the model frame, a slide belt stacked on the slide bed and a slide body stacked on the slide belt;
the anti-slide pile group comprises double rows of anti-slide pile groups and strain gauges, wherein the double rows of anti-slide pile groups are embedded in the slide bed, the slide belt and the slide body, and the strain gauges are arranged on the double rows of anti-slide pile groups in a row;
the loading device comprises a jack, and the jack provides thrust for the landslide model;
and the monitoring device comprises soil pressure boxes arranged in the sliding body and slope indicating trace points arranged on the surface part of the sliding body.
Further, the double-row anti-slide pile group comprises a front row anti-slide pile group and a rear row anti-slide pile group, and the front row anti-slide pile group and the rear row anti-slide pile group are vertically inserted into the slide mould and the slide bed.
Furthermore, the loading device further comprises a telescopic rod and a thrust plate, the thrust plate is attached to the rear side of the landslide model in parallel, the telescopic rod transmits the thrust to the thrust plate through the jack, and the thrust plate bears the thrust and transmits the thrust to the landslide model.
Further, the loading device further comprises a pressure sensor, and the pressure sensor is attached to the thrust plate.
Further, the monitoring device further comprises a first high-speed camera positioned at the top of the model frame, a second high-speed camera positioned at the side of the model frame and a three-dimensional laser scanner positioned at the front side of the model frame.
Furthermore, six rows of soil pressure cells are arranged along the main sliding direction, four soil pressure cells are arranged along the depth direction, the row distance of each row is 11-13cm, the burial depth distance is 7.4-7.6cm, and the soil pressure cells are encrypted near the front row of anti-slide piles and the rear row of anti-slide piles.
Furthermore, two sides of the soil pressure cell perpendicular to the main sliding direction are respectively provided with one row, four rows are arranged along the depth direction, and the burial depth interval is 7.4-7.6 cm.
Furthermore, the strain gauges are arranged on two piles in the middle of the front row of anti-slide pile groups and the rear row of anti-slide pile groups, and the strain gauges are uniformly arranged on two piles in the middle of each strain gauge.
Furthermore, the horizontal cross section of the front row of slide-resistant pile groups and the horizontal cross section of the rear row of slide-resistant pile groups are circular, the diameter of the front row of slide-resistant pile groups is 4.98-5.02cm, and the pile length of the front row of slide-resistant pile groups is 44-46 cm.
Further, the slope represents that the trace points are white plastic round balls, and the distance between every two adjacent trace points is 11-13 cm.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and is embodied in the following aspects:
the double-row anti-slide pile group physical model test device can perform a complete double-row anti-slide pile group physical model test, can effectively simulate and monitor the trailing edge thrust of the landslide, the displacement of a landslide surface, a landslide body stress field, an anti-slide pile stress field and an anti-slide pile deformation field, can effectively simulate the whole process from initial deformation to damage of the landslide, provides reference for the evolution mechanism and the interaction mechanism of a large reservoir landslide-anti-slide pile group system, can reasonably evaluate the control effect of the anti-slide pile group, and improves the pertinence, the effectiveness and the economical efficiency of the large reservoir landslide control work.
Drawings
FIG. 1 is a schematic front view structural diagram of a landslide-double row anti-slide pile group physical model test device in an embodiment of the utility model;
fig. 2 is a schematic view of a top-down structure of the landslide-double row anti-slide pile group physical model test device in the embodiment of the utility model.
Description of reference numerals:
1-anti-slide pile group model; 11-a model frame; 12-a slider; 13-a slide belt; 14-a slide bed; 2-anti-slide pile group; 21-double row anti-slide pile group; 211-front row of anti-slide pile groups; 212-rear row of slide-resistant pile group; 22-strain gage; 3-a loading device; 31-a jack; 32-a telescopic rod; 33-a thrust plate; 34-a pressure sensor; 4-a monitoring device; 41-a first high speed camera; 42-a second high speed camera; 43-slope represents the trace point; 44-earth pressure cell; 45-three-dimensional laser scanner.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the terms front, back, upper and lower in the description and the drawings are defined by the parts in the figures and the positions of the parts relative to each other, and are used for the sake of clarity and convenience in the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
Referring to fig. 1-2, an embodiment of the present invention provides a double-row anti-slide pile group physical model test apparatus, which includes an anti-slide pile group model 1, an anti-slide pile group 2, a loading apparatus 3 and a monitoring apparatus 4,
the landslide model 1 comprises a model frame 11, a slide bed 14, a slide belt 13 and a slide body 12, wherein the slide bed 14 is placed at the bottom of the model frame 11, the slide belt 13 is stacked on the upper surface of the slide bed 14, and the slide body 12 is stacked on the upper surface of the slide belt 13.
The anti-slide pile group 2 comprises double rows of anti-slide pile groups 21 and strain gauges 22, the double rows of anti-slide pile groups 21 are embedded in the slide bed 14, the slide belt 13 and the slide body 12, and the strain gauges 22 are arranged on the double rows of anti-slide pile groups 21 in a row.
The loading device 3 comprises a jack 31, and the jack 31 provides thrust for the landslide model 1;
the monitoring device 4 comprises a soil pressure cell 44 and a slope tracing point 43, wherein the soil pressure cell 44 is arranged inside the sliding body 12, and the slope tracing point 43 is positioned at the surface part of the sliding body 12.
It should be noted that, in this embodiment, the model frame 11 is set as a rectangular box, the size of the actual landslide can be designed according to the similarity ratio, the main frame and the floor of the model frame 11 are made of stainless steel, the front, left and right sides are made of organic glass plates, and the upper end and the rear end are free openings.
The sliding body 12 is prepared from clay and sand according to a similar theory, the sliding belt 13 is prepared from glass beads and clay according to a similar theory, and the sliding bed 14 is composed of cement.
In addition, in the embodiment, the double-row anti-slide pile group 21 is made of a polyurethane material.
Therefore, the double-row anti-slide pile group physical model test device can effectively simulate the reinforcement measure of the actual management engineering of the landslide of the large reservoir, can effectively monitor the trailing edge thrust of the landslide, the displacement of a landslide surface, the stress field of a landslide body, the stress field of the anti-slide pile and the deformation field of the anti-slide pile, can provide reference for the evolution mechanism and the interaction mechanism of a large reservoir landslide-anti-slide pile group system, can reasonably evaluate the control effect of the anti-slide pile group, and improves the pertinence, the effectiveness and the economical efficiency of the control work of the landslide of the large reservoir.
Specifically, referring to fig. 1-2, in the embodiment of the present invention, the double row anti-slide pile group 21 includes a front row anti-slide pile group 211 and a rear row anti-slide pile group 212, and the front row anti-slide pile group 211 and the rear row anti-slide pile group 212 are vertically inserted into the slide body 12 and the slide bed 14.
Therefore, by arranging the double-row anti-slide pile group, the action mechanism and the prevention and treatment effect of the double-row anti-slide pile group on the landslide can be effectively researched.
Specifically, referring to fig. 1, in the embodiment of the present invention, the loading device 3 further includes an expansion link 32 and a thrust plate 33, the thrust plate 33 is attached to the rear side of the landslide model 1 in parallel, the expansion link 32 transmits the thrust from the jack 31 to the thrust plate 33, and the thrust plate 33 bears the thrust and transmits the thrust to the landslide model 1.
Therefore, the jack 31 provides thrust for the landslide-anti-slide pile group model, the telescopic rod 32 is a force transmission device of the jack 31, the thrust is transmitted to the thrust plate 33 from the jack 31, and the thrust plate 33 is parallelly attached to the rear side of the landslide-anti-slide pile group model, bears the thrust provided by the jack 31 and transmits the thrust to the landslide-anti-slide pile group model.
Specifically, referring to fig. 1, in the embodiment of the present invention, the loading device 3 further includes a pressure sensor 34, and the pressure sensor 34 is attached to the thrust plate 33.
Therefore, the pressure sensor 34 is attached to the thrust plate 33 and can be used for monitoring the thrust force applied to the landslide-anti-slide pile group model in the test process.
Specifically, referring to fig. 1 and 2, in the embodiment of the present invention, the monitoring device 4 further includes a first high-speed camera 41 located at the top of the model frame 11, a second high-speed camera 42 located at the side of the model frame 11, and a three-dimensional laser scanner 45 located at the front side of the model frame 11.
Therefore, the first high-speed camera 41 is arranged at the top of the model frame 11 and used for monitoring the deformation condition of the slope surface in the test process; the second high-speed camera 42 is arranged on the left side of the model frame 11 and used for monitoring the deformation condition of the landslide in the test process; a three-dimensional laser scanner 45 is placed on the front side of the model frame 11 for occasionally recording the position of the hill-representative tracking point 43 and then by further image processing to obtain the deformation process of the landslide.
Specifically, in the embodiment of the present invention, the soil pressure cells 44 are arranged in six rows in the main sliding direction, four rows are arranged in the depth direction, the row distance of each row is 11-13cm, and the burial depth distance is 7.4-7.6 cm.
Referring to fig. 1 and 2, in the present embodiment, the soil pressure boxes 44 are uniformly arranged inside the slide body 12, the stressed side of the soil pressure boxes faces the rear edge of the slide slope, six rows are arranged along the main sliding direction, the preferred row spacing is 12cm, four rows are arranged along the depth direction, the preferred buried depth spacing is 7.5cm, and the soil pressure boxes are encrypted near the front row of anti-slide piles and the rear row of anti-slide piles.
Specifically, in the embodiment of the present invention, two sides of the soil pressure cell 44 perpendicular to the main sliding direction are respectively provided with a row, each row is provided with four rows along the depth direction, and the burial depth distance is 7.4-7.6 cm.
Referring to fig. 1 and 2, in the present embodiment, two rows are respectively disposed at a distance of 10cm along both sides of the main sliding direction, so that the soil pressure cell 44 has four rows in the horizontal left-right direction, and each row has four rows in the vertical depth direction, preferably, the buried depth distance is 7.5 cm.
In total forty soil pressure cells 44 are thus provided for monitoring the stress distribution of the soil mass on the landslide during the test.
Specifically, in the embodiment of the present invention, the strain gauges 22 are arranged on the middle two piles of the front row 211 and the rear row 212, and the plurality of strain gauges 22 are uniformly arranged on each of the middle two piles.
Referring to fig. 1 and 2, in the present embodiment, the strain gauge 22 is attached to the front side surface and the rear side surface of the middle pile of the front row of anti-slide pile group and the rear row of anti-slide pile group, eight rows in total are arranged on the middle piles (counted from left to right in the top view) of the double row of anti-slide pile group 21, five strain gauges are arranged in each row, the buried depth interval is 7.5cm, and forty strain gauges are arranged in total for monitoring the stress condition of the anti-slide pile in the test process.
Specifically, referring to fig. 1 and 2, in the embodiment of the present invention, the horizontal cross-sectional shapes of the front row of anti-slide pile group 211 and the rear row of anti-slide pile group 212 are circular, the diameter is 4.98-5.02cm, and the pile length is 44-46 cm.
Therefore, the slide-resistant piles of the front row of slide-resistant pile group 211 and the rear row of slide-resistant pile group 212 are all set to be circular, on one hand, automatic processing of equipment is facilitated, on the other hand, holes formed by processing the circular slide-resistant piles are not prone to collapse, drilled cast-in-place piles with mechanical hole forming for quick pile forming in actual engineering can be fully simulated, double rows of slide-resistant pile groups with large thrust to super-huge landslides are fully simulated, and research on the reinforcing mechanism of the slide-resistant pile groups is facilitated.
Specifically, in the embodiment of the present invention, the hill-tracing points 43 are white plastic spheres, and the pitch of each hill-tracing point 43 is 11-13 cm.
Referring to fig. 1 and 2, in the present embodiment, the slope trace points 43 are disposed on the surface of the sliding body 12 and are formed by uniformly arranging white plastic pellets, wherein the distance in the direction perpendicular to the sliding direction (i.e. the left-right direction in the drawing) is preferably set to 12cm, and the total of five rows is preferably 12cm, and the distance in the direction parallel to the sliding direction (i.e. the front-back direction) is preferably set to eight rows.
In addition, the horizontal distance between the slope surface tracing points 43 of the front and rear rows of piles of the double-row anti-slide pile group 21 and the slope in the middle of the double-row anti-slide pile group 21 is 18 cm.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a double slide-resistant pile crowd physical model test device which characterized in that includes:
the landslide model (1) comprises a model frame (11), a slide bed (14) placed at the bottom of the model frame (11), a slide belt (13) stacked on the slide bed (14), and a slide body (12) stacked on the slide belt (13);
the anti-slide pile group (2) comprises double rows of anti-slide pile groups (21) which are embedded and fixed in the slide bed (14), the slide belt (13) and the slide body (12) and strain gauges (22) which are arranged on the double rows of anti-slide pile groups (21) in a row;
a loading device (3), the loading device (3) comprising a jack (31), the jack (31) providing thrust to the landslide model (1);
the monitoring device (4) comprises soil pressure boxes (44) which are all arranged inside the sliding body (12) and slope surface tracing points (43) which are arranged on the surface part of the sliding body (12).
2. The double row friction pile cluster physical model test device of claim 1, characterized in that the double row friction pile group (21) comprises a front row friction pile group (211) and a rear row friction pile group (212), the front row friction pile group (211) and the rear row friction pile group (212) are vertically inserted in the slide body (12) and the slide bed (14).
3. The double row anti-skid pile group physical model test device as claimed in claim 1, wherein the loading device (3) further comprises a telescopic rod (32) and a thrust plate (33), the thrust plate (33) is attached to the rear side of the landslide model (1) in parallel, the telescopic rod (32) transmits the thrust force from the jack (31) to the thrust plate (33), and the thrust plate (33) bears the thrust force and transmits the thrust force to the landslide model (1).
4. The double row anti-slide pile group physical model test device as claimed in claim 3, characterised in that the loading device (3) further comprises a pressure sensor (34), the pressure sensor (34) being attached to the thrust plate (33).
5. The double row stud cluster physical model test device of claim 1, characterized in that the monitoring device (4) further comprises a first high speed camera (41) located on top of the model frame (11), a second high speed camera (42) located to the side of the model frame (11), and a three-dimensional laser scanner (45) placed at the front side of the model frame (11).
6. The double row friction pile crowd physical model test device of claim 1, characterized in that the soil pressure cells (44) are arranged in six rows in the main sliding direction, four rows in the depth direction, the row spacing of each row is 11-13cm, the burial depth spacing is 7.4-7.6cm, and the encryption is performed near the friction piles in the front row and the friction piles in the rear row.
7. The double row anti-slide pile group physical model test device as claimed in claim 5, wherein the two sides of the soil pressure cell (44) vertical to the main sliding direction are respectively provided with one row, each row is provided with four rows along the depth direction, and the burial depth interval is 7.4-7.6 cm.
8. The double row anti-slide pile group physical model test device as claimed in claim 2, wherein the strain gauge (22) is arranged on the middle two piles of the front row anti-slide pile group (211) and the rear row anti-slide pile group (212), and a plurality of rows of the strain gauge (22) are uniformly arranged on each of the middle two piles.
9. The double row ram cluster physical model test device as claimed in claim 2, wherein the horizontal cross-sectional shape of the front row ram cluster (211) and the rear row ram cluster (212) is circular, the diameter is 4.98-5.02cm, and the pile length is 44-46 cm.
10. The double row friction pile group physical model test device of claim 1, characterized in that the ramp surface tracing points (43) are white plastic spheres, and each ramp represents a distance between tracing points (43) of 11-13 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123270768.5U CN216671004U (en) | 2021-12-23 | 2021-12-23 | Double-row anti-slide pile group physical model test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123270768.5U CN216671004U (en) | 2021-12-23 | 2021-12-23 | Double-row anti-slide pile group physical model test device |
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| CN216671004U true CN216671004U (en) | 2022-06-03 |
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| CN202123270768.5U Active CN216671004U (en) | 2021-12-23 | 2021-12-23 | Double-row anti-slide pile group physical model test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217125A (en) * | 2022-07-12 | 2022-10-21 | 四川省公路规划勘察设计研究院有限公司 | Multilayer slide belt accumulation layer landslide anti-skidding supporting construction |
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2021
- 2021-12-23 CN CN202123270768.5U patent/CN216671004U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217125A (en) * | 2022-07-12 | 2022-10-21 | 四川省公路规划勘察设计研究院有限公司 | Multilayer slide belt accumulation layer landslide anti-skidding supporting construction |
| CN115217125B (en) * | 2022-07-12 | 2023-09-26 | 四川省公路规划勘察设计研究院有限公司 | Multi-layer sliding belt stacking layer landslide anti-sliding support structure |
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