CN211148646U - Combined type shallow tunnel excavation similar model test device - Google Patents
Combined type shallow tunnel excavation similar model test device Download PDFInfo
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- CN211148646U CN211148646U CN201922140483.6U CN201922140483U CN211148646U CN 211148646 U CN211148646 U CN 211148646U CN 201922140483 U CN201922140483 U CN 201922140483U CN 211148646 U CN211148646 U CN 211148646U
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Abstract
The utility model discloses a combined type shallow tunnel excavation similar model test device, which comprises a detection bench, an experiment bench arranged in the detection bench and an experiment box body arranged in the experiment bench; the experimental box body is a rectangular box body with an opening at the top, the side wall of the rectangular box body is embedded in the groove of the aluminum alloy prefabricated profile through the rectangular box body with the opening at the top, the front side wall of the rectangular box body is an excavation surface of the experimental box body, the excavation surface of the experimental box body is a glass plate at the side of tunnel excavation, and the rest 3 side walls of the rectangular box body are provided with monitoring holes according to experimental monitoring contents; filling a model test material in the test chamber body; and a monitoring instrument fixing cross beam is arranged on the right side surface of the detection rack and used for fixedly placing a detection instrument. The components are flexibly assembled, on the other hand, the test operation is convenient, the monitoring equipment is stable, and the space utilization rate of a laboratory is effectively improved.
Description
Technical Field
The utility model relates to a tunnel engineering laboratory glassware technical field specifically is a modular shallow similar model test device of tunnel excavation that buries.
Background
With the high-speed development of economy, subways gradually become main rail vehicles in large and medium-sized cities. Urban underground engineering is inevitably built in places with dense population and buildings, and the safety in the construction process is always the key point of domestic and foreign research. Stratum deformation in the tunnel excavation process is the monitoring key in tunnel engineering and is also the key of construction safety.
In the indoor similar model test, the prototype engineering is simplified into an indoor model convenient to operate through a similar theory, and qualitative or quantitative understanding of the prototype is obtained through simulating the mechanical response rule of surrounding rocks and a supporting structure in the tunnel excavation supporting process.
The indoor similar model test is used as an important tool and means for underground engineering research, and in recent years, corresponding indoor model test benches are designed by a plurality of research institutions. However, because the indoor model test bench is large in size, the box-type bench filling material is time-consuming and labor-consuming and occupies a large space in the test bench in idle time. Usually, an external monitoring equipment rack and a test bench are two independent systems, the monitoring equipment rack is not easy to fix, and a monitoring result is greatly disturbed by the outside.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides a modular shallow tunnel excavation similar model test device that buries.
The technical scheme of the utility model is that:
a combined type test device for similar models of shallow tunnel excavation comprises a detection bench, an experiment bench positioned in the detection bench and an experiment box body arranged in the experiment bench;
the detection bench is a frame formed by assembling aluminum alloy prefabricated sections with grooves on four side surfaces of a strip shape, and the sections are connected through a first connecting piece; the detection bench 6 can also facilitate wiring.
The experiment bench is a box body frame assembled by prefabricated sectional materials, grooves are arranged on four side surfaces of the prefabricated sectional materials, the prefabricated sectional materials are connected through second connecting pieces and high-strength bolts,
4 test bench side parts used for connecting the detection bench are arranged at the bottom of the box body frame;
the experimental box body is a rectangular box body with an opening at the top, the side wall of the rectangular box body is embedded in the groove of the aluminum alloy prefabricated profile through the rectangular box body with the opening at the top, the front side wall of the rectangular box body is an excavation surface of the experimental box body, the excavation surface of the experimental box body is a glass plate at the side of tunnel excavation, and the rest 3 side walls of the rectangular box body are provided with monitoring holes according to experimental monitoring contents; filling a model test material in the test chamber body;
and a monitoring instrument fixing cross beam is arranged on the right side surface of the detection rack and used for fixedly placing a detection instrument.
Further, in the above scheme, the side portions of the test bed are located on the extension lines of the front and rear edges of the bottom of the box frame, and the bottom of the detection bed is mounted on the side portions of the four test beds.
Further, in the above solution, the testing stand is connected with the side of the testing stand by a third connecting member to enhance the stability of the connection.
Further, in the above scheme, the tunnel excavation side glass plate is formed by splicing a plurality of high-strength glass plates with the same thickness, wherein a circular through hole is formed in the middle of any one of the high-strength glass plates, and the high-strength glass plate is divided into two parts by the circular through hole.
Furthermore, the installation sequence of each high-strength glass plate is adjustable, and the installation position of the high-strength glass plate provided with the circular through hole is determined according to the buried depth of the required simulated tunnel and the form of the section of the tunnel, so that the method has higher flexibility and adaptability.
The utility model has the advantages that: the utility model discloses install the experiment box in the laboratory bench to with the laboratory bench internally mounted in detecting the bench, on the one hand, the equipment is nimble between each part, on the other hand, test operation is convenient, and monitoring facilities is stable, has effectively improved the space utilization in laboratory.
Drawings
FIG. 1 is a schematic view of the overall structure of the experimental apparatus of the present invention;
FIG. 2 is an assembly view of the glass of the excavation face of the test box body of the utility model;
FIG. 3 is a sectional view of the prefabricated section of the present invention;
the test bench comprises a test bench side part, 2-a third connecting piece, 3-a second connecting piece, 4-prefabricated profiles, 41-a groove, 5-a test box body excavation surface, 6-a monitoring bench, 7, a first connecting piece, 8-a test box body, 9-a monitoring instrument fixing cross beam, 10-a test bench and 11-a high-strength glass plate.
Detailed Description
Example 1
Referring to fig. 1, the combined type shallow tunnel excavation similar model test device includes a detection bench 6, an experiment bench 10 located inside the detection bench 6, and an experiment box 8 installed in the experiment bench 10;
the detection bench 6 is a frame formed by assembling strip-shaped prefabricated sectional materials, and the sectional materials are connected through a first connecting piece 7; the detection bench 6 can also facilitate wiring.
The experiment bench 10 is a box body frame formed by assembling aluminum alloy prefabricated sections 4 with grooves 41 on four side surfaces, the grooves 41 are formed on the four side surfaces of the prefabricated sections 4, the prefabricated sections 4 are connected through second connecting pieces 3 and high-strength bolts, and the prefabricated sections 4 are made of aluminum alloy;
the box frame bottom is equipped with 4 and is used for connecting detect rack 6's test bench lateral part 1, test bench lateral part 1 is located the extension line of two edges around the box frame bottom, and the bottom of detecting rack 6 is installed on four test bench lateral parts 1, be connected through third connecting piece 2 between detecting rack 6 and the test bench lateral part 1 to the stability of reinforcing connection.
The experimental box body 8 is a rectangular box body with an opening at the top, the side wall of the rectangular box body is embedded in the groove 41 of the aluminum alloy prefabricated profile 4 through the rectangular box body with the opening at the top, the front side wall of the rectangular box body is an experimental box body excavation surface 5, the experimental box body excavation surface 5 is a tunnel excavation side glass plate, and the rest 3 side walls of the rectangular box body are provided with monitoring holes according to experimental monitoring contents; filling a model test material in the test box body 8;
and a monitoring instrument fixing cross beam 9 is arranged on the right side surface of the detection rack 6 and used for fixedly placing a detection instrument.
The tunnel excavation side glass board is assembled by 6 high-strength glass boards 11 that thickness is the same and is formed, wherein from top to bottom 3 rd high-strength glass board 11 middle part has seted up circular through-hole and this high-strength glass board quilt circular through-hole is separated into two parts.
Example 2
The difference with embodiment 1 lies in that tunnel excavation side glass board is assembled by 8 high strength glass boards 11 that the thickness is the same, wherein from top to bottom 5 th high strength glass board 11 middle part has seted up circular through-hole and this high strength glass board by circular through-hole partition becomes two parts.
Claims (5)
1. The combined type test device for the shallow tunnel excavation similar model is characterized by comprising a detection rack (6), an experiment rack (10) positioned in the detection rack (6) and an experiment box body (8) arranged in the experiment rack (10);
the detection rack (6) is a frame formed by assembling strip-shaped prefabricated sections, and the sections are connected through a first connecting piece (7);
the experimental bench (10) is a box body frame formed by assembling aluminum alloy prefabricated sections (4) with grooves (41) on four side surfaces, the aluminum alloy prefabricated sections (4) are connected through second connecting pieces (3) and high-strength bolts,
the bottom of the box body frame is provided with 4 test bed side parts (1) used for connecting the detection bed (6);
the experimental box body (8) is a rectangular box body with an opening at the top, the side wall of the rectangular box body is embedded in the groove (41) of the aluminum alloy prefabricated profile (4) through the rectangular box body with the opening at the top, the front side wall of the rectangular box body is a test box body excavation surface (5), the test box body excavation surface (5) is a tunnel excavation side glass plate, and the rest 3 side walls of the rectangular box body are provided with monitoring holes;
and a monitoring instrument fixing cross beam (9) is arranged on the right side surface of the detection rack (6).
2. The combined type test device for the shallow tunnel excavation similarity model of claim 1, wherein the test bench side parts (1) are positioned on the extension lines of the front edge and the rear edge of the bottom of the box body frame, and the bottoms of the detection benches (6) are arranged on the four test bench side parts (1).
3. The combined type test device for the shallow tunnel excavation similarity model of claim 2, wherein the detection bench (6) is connected with the side part (1) of the test bench through a third connecting piece (2).
4. The combined type shallow-buried tunnel excavation similar model test device as claimed in claim 1, wherein the tunnel excavation side glass plate is formed by assembling a plurality of high-strength glass plates (11) with the same thickness, wherein a circular through hole is formed in the middle of any one of the high-strength glass plates (11), and the high-strength glass plate is divided into two parts by the circular through hole.
5. The combined type shallow-buried tunnel excavation similar model test device as claimed in claim 4, wherein the installation sequence of the high-strength glass plates (11) is adjustable, and the installation positions of the high-strength glass plates (11) provided with the circular through holes are determined according to the buried depth and the tunnel section form of the required simulated tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922140483.6U CN211148646U (en) | 2019-12-04 | 2019-12-04 | Combined type shallow tunnel excavation similar model test device |
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| CN201922140483.6U CN211148646U (en) | 2019-12-04 | 2019-12-04 | Combined type shallow tunnel excavation similar model test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061992A (en) * | 2020-08-06 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Assembled model groove device for indoor shield tunneling test and test method thereof |
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2019
- 2019-12-04 CN CN201922140483.6U patent/CN211148646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061992A (en) * | 2020-08-06 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Assembled model groove device for indoor shield tunneling test and test method thereof |
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