CN209841563U - Soil body stress strain analogue test device around enlarged footing stock - Google Patents
Soil body stress strain analogue test device around enlarged footing stock Download PDFInfo
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- CN209841563U CN209841563U CN201822261837.8U CN201822261837U CN209841563U CN 209841563 U CN209841563 U CN 209841563U CN 201822261837 U CN201822261837 U CN 201822261837U CN 209841563 U CN209841563 U CN 209841563U
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- 239000002689 soil Substances 0.000 title claims abstract description 97
- 238000006073 displacement reaction Methods 0.000 claims abstract description 55
- 238000004873 anchoring Methods 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 238000004088 simulation Methods 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000010998 test method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A device for simulating and testing the stress and strain of a soil body around an enlarged footing anchor rod comprises a test box and an enlarged footing anchor rod model. The expanded head anchor rod model comprises a tubular anchoring section model and a rod-shaped free section model; the test box comprises a box body, wherein the top surface of the box body is provided with a cover plate for sealing and a first servo hydraulic loading device; soil is filled in the box body. The anchoring section model is buried in the middle of the soil body, and the right end of the free section model is connected with a second servo hydraulic loading device, a tension and pressure sensor and a first displacement meter; the left end of the anchoring section model is connected with a second displacement meter through a metal wire; a plurality of soil pressure boxes are distributed on the soil body in the vertical plane and the horizontal plane where the center point of the anchoring section model is located at equal intervals; the data acquisition instrument, the first displacement meter, the second displacement meter, the first servo hydraulic loading device and the second servo hydraulic loading device are connected with the controller through signals.
Description
Technical Field
The utility model belongs to the geotechnical engineering field, concretely relates to enlarged footing stock soil body stress-strain analogue test device around.
Background
In the soft soil region of the southeast coastal region, because the strength of foundation soil is low, the ultimate uplift resistance of a common anchor rod is small, and the application of the anchor rod in a soft soil foundation is restricted. In order to improve the pulling resistance of the anchor rod in the soft soil foundation, engineering personnel research and develop the anchor rod with the enlarged head. The anchor rod adopts a high-pressure rotary spraying process, and a cylindrical anchoring section with a larger diameter is formed in a certain range at the bottom of the anchor rod, so that the pulling resistance of the anchor rod is obviously improved.
The anchor rod with the enlarged head has the advantages of high construction speed, high quality, small influence on the surrounding environment, capability of effectively improving the pulling resistance of the anchoring body and the like. However, the mechanism of action of the enlarged head anchor is not clear, so that the enlarged head anchor is still in the empirical design stage at present. Therefore, the mechanism of action of the expansion head anchor rod is further researched through an indoor model test, and the expansion head anchor rod has very important significance for safe application and popularization of the expansion head anchor rod.
But no simulation test device for uplift resistance of the expanded head anchor rod exists in the market.
Disclosure of Invention
In order to overcome the defects in the background art, the embodiment of the application provides a simulation test device for the stress and strain of the soil body around the anchor rod of the enlarged footing.
The utility model adopts the technical proposal that:
the embodiment of the application provides a device for simulating the stress and strain of a soil body around an enlarged footing anchor rod, which comprises a test box and an enlarged footing anchor rod model;
the expanded head anchor rod model comprises a tubular anchoring section model and a rod-shaped free section model, a first sleeve is coaxially and fixedly sleeved outside the free section model, and the anchoring section model is fixedly sleeved on the left end of the sleeve;
the test box comprises a box body, wherein the top surface of the box body is provided with an opening for filling soil, the opening is provided with a cover plate for sealing, and the cover plate covers the top surface of the box body; a first reaction frame is erected on the box body, a first servo hydraulic loading device which vertically extends downwards to load and apply pressure to the cover plate is arranged on the first reaction frame, and the bottom end of the first servo hydraulic loading device is in contact with the upper surface of the cover plate;
the box body is filled with soil, a second reaction frame is arranged on the left side of the box body, a third reaction frame is arranged on the right side of the box body, a first through hole is formed in the left side surface of the box body, a second through hole is formed in the right side surface of the box body, and the central axes of the first through hole and the second through hole are overlapped;
the enlarged head anchor rod model horizontally penetrates into the box body from the second through hole along the central axis direction of the second through hole, the anchoring section model is buried in the middle of the soil body, the first sleeve separates the soil body from the free section model, and the right end of the free section model horizontally penetrates through the second through hole and the third reaction frame; the right end of the free section model is connected with a second servo hydraulic loading device for horizontally pulling the expansion head anchor rod model; the right end of the free section model is also connected with a tension and pressure sensor for measuring the horizontal tension borne by the enlarged head anchor rod model and a first displacement meter for measuring the elastic displacement information of the free section model;
the left end of the anchoring section model is connected with the right end of a metal wire, the left end of the metal wire sequentially penetrates through the first through hole and the second reaction frame, the left end of the metal wire is connected with a second displacement meter used for measuring horizontal displacement information of the enlarged head anchor rod model, and a second sleeve used for isolating the metal wire and the soil body is further sleeved on the metal wire;
a plurality of soil pressure boxes for detecting soil pressure information are distributed on the soil body in the vertical plane and the horizontal plane where the center point of the anchoring section model is located at equal intervals, and each soil pressure box is in signal connection with a data acquisition instrument so as to collect the soil pressure information of the soil body;
the data acquisition instrument is in signal connection with the controller so as to transmit the soil pressure information to the controller;
the first displacement meter and the second displacement meter are respectively in signal connection with the controller so as to respectively transmit the detected elastic displacement information and the detected horizontal displacement information to the controller;
the first servo hydraulic loading device and the second servo hydraulic loading device are connected with the controller through signals, and the controller controls the first servo hydraulic loading device and the second servo hydraulic loading device.
Further, the anchoring section model is a rubber tube, and the free section model is a threaded rod.
Further, the first sleeve and the second sleeve are both plastic sleeves.
Further, the distance between two adjacent soil pressure boxes is 10 cm.
Furthermore, the wall surfaces of the box body are all made of toughened glass
Further, the outer surface of the anchoring section model is coated with an epoxy resin layer.
Furthermore, an iron sheet is arranged at the right end of the free section model, and the first displacement meter is fixedly connected with the iron sheet.
Further, the cover plate is an iron plate.
A test method of soil body stress strain analogue test device around enlarged footing stock, including following step:
step 1, connecting the anchoring section model and the free section model to form the enlarged footing anchor rod model;
step 2, filling a first preset amount of soil body into the box body and compacting to enable the top surface of the soil body to be flat, and enabling the distance between the top surface of the soil body and the central shaft of the second through hole to be equal to the radius of the anchoring section model;
step 3, inserting the expansion head anchor rod model into the box body from the second through hole along the axial direction of the second through hole, wherein the anchoring section model is positioned in the middle of a soil body in the box body, and the free section model horizontally penetrates through the second through hole;
step 4, connecting the left end of the anchoring section model with a metal wire, and enabling the right end of the metal wire to horizontally penetrate through the first through hole;
step 5, continuously filling soil with a second preset amount into the box body and compacting, ensuring that the upper surface of the soil is flush with the top surface of the box body, and covering the cover plate;
step 6, fixing an iron sheet on the enlarged head anchor rod model and connecting the iron sheet with a first displacement meter, and connecting the left end of the metal wire with a second displacement meter;
step 7, arranging soil pressure boxes on soil bodies in a vertical plane and a horizontal plane where the center point of the anchoring section model is located at intervals of 10cm, wherein each soil pressure box is in signal connection with a data acquisition instrument;
step 8, connecting the expansion head anchor rod model with a pulling pressure sensor, connecting the right end of the expansion head anchor rod model with a second servo hydraulic loading device, and connecting the first servo hydraulic loading device with the cover plate;
step 9, respectively starting the first servo hydraulic loading device and the second servo hydraulic loading device and loading the first servo hydraulic loading device and the second servo hydraulic loading device to a set value;
step 10, the controller controls the first servo hydraulic loading device to load on the soil body;
the controller controls the second servo hydraulic loading device to pull the expansion head anchor rod model, and the actual bearing capacity of the expansion head anchor rod model is measured by the pull pressure sensor;
the first displacement meter detects elastic displacement information of the free section model and transmits the elastic displacement information to the controller;
the second displacement meter detects horizontal displacement information of the enlarged head anchor rod model and transmits the horizontal displacement information to the controller;
the data acquisition instrument collects pressure information of each soil pressure cell and transmits the soil pressure information to the controller;
and the controller simulates the stress strain process of the soil body around the enlarged head anchor model in the uplift process of the enlarged head anchor model according to the actual bearing capacity, the elastic displacement information, the horizontal displacement information and the soil pressure information.
The beneficial effects of the utility model are embodied in:
(1) the test device has simple structure, low cost and convenient and easy use.
(2) Utilize test device implement test method, can simulate the process that the soil body stress meets an emergency around the enlarged footing stock resistance to plucking test in laboratory to know the influence law that the peripheral soil body stress of anchor section meets an emergency in enlarged footing stock use phase.
(3) The utility model discloses utilize threaded rod and rubber tube to constitute and enlarge first stock model, it is actual more to laminate, and the simulation effect is more accurate.
Drawings
FIG. 1 is a schematic overall structure diagram of a simulation test device for stress and strain of a soil body around an anchor rod of an enlarged head in one embodiment;
FIG. 2 is a schematic diagram of the construction of an enlarged head anchor model in one embodiment;
FIG. 3 is a schematic view of the engagement of a wire with a second displacement gauge in one embodiment;
FIG. 4 is a schematic view showing a fitting structure of the free-segment mold and the first displacement meter in one embodiment;
FIG. 5 is a schematic view of a vertical plane and a horizontal plane in which the center points of the anchor section models are located in one embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, the embodiment provides a simulation test device for stress and strain of a soil body around an enlarged footing anchor rod, and the simulation test device comprises a test box and an enlarged footing anchor rod model;
the expanded head anchor rod model comprises a tubular anchoring section model 8 and a rod-shaped free section model 10, a first sleeve 9 is coaxially and fixedly sleeved outside the free section model 10, and the anchoring section model is fixedly sleeved on the left end of the sleeve 9;
the test box comprises a box body 1, wherein an opening for filling soil is formed in the top surface of the box body 1, a cover plate 3 for sealing is arranged in the opening, and the cover plate 3 covers the top surface of the box body 1; a first reaction frame 4 is erected on the box body 1, a first servo hydraulic loading device 5 which vertically extends downwards to load and press the cover plate 3 is arranged on the first reaction frame 4, and the bottom end of the first servo hydraulic loading device is in contact with the upper surface of the cover plate 3;
specifically, the box body 1 is cuboid or cubic.
Soil is buried in the box body 1, a second reaction frame 15 is arranged on the left side of the box body 1, a third reaction frame 16 is arranged on the right side of the box body 1, a first through hole is formed in the left side surface of the box body 1, a second through hole is formed in the right side surface of the box body 1, and the central axes of the first through hole and the second through hole are overlapped;
the enlarged head anchor rod model horizontally penetrates into the box body 1 from the second through hole along the central axis direction of the second through hole, the anchoring section model 8 is buried in the middle of the soil body, the first sleeve 9 separates the soil body from the free section model 10, and the right end of the free section model 10 horizontally penetrates through the second through hole and the third reaction frame 16; the right end of the free section model 10 is connected with a second servo hydraulic loading device 20 for horizontally pulling the enlarged head anchor rod model; the right end of the free section model 10 is also connected with a tension and pressure sensor 19 for measuring the horizontal tension borne by the enlarged head anchor rod model and a first displacement meter 13 for measuring the elastic displacement information of the free section model 10;
the left end of the anchoring section model 8 is connected with the right end of a metal wire 18, the left end of the metal wire 18 sequentially penetrates through the first through hole and the second reaction frame 15, the left end of the metal wire 18 is connected with a second displacement meter 14 used for measuring horizontal displacement information of the enlarged head anchor rod model, and a second sleeve 17 used for isolating the metal wire 18 from the soil body is further sleeved on the metal wire 18;
specifically, the first displacement meter 13, the tension and pressure sensor 19 and the second displacement meter 14 are all located outside the box body 1.
A plurality of soil pressure boxes for detecting soil pressure information are distributed on the soil body in the vertical plane and the horizontal plane where the central point of the anchoring section model 8 is located at equal intervals, and each soil pressure box is in signal connection with a data acquisition instrument 22 so as to collect the soil pressure information of the soil body;
specifically, the center point of the anchoring section model 8 refers to a center of the anchoring section model 8 along the center axis direction.
The data acquisition instrument 22 is in signal connection with the controller 21 so as to transmit the soil pressure information to the controller 21; the first displacement meter 13 and the second displacement meter 14 are respectively in signal connection with the controller 21 to respectively transmit the detected elastic displacement information and the detected horizontal displacement information to the controller 21;
the first servo hydraulic loading device 5 and the second servo hydraulic loading device 20 are in signal connection with the controller 21, and the controller 21 controls the first servo hydraulic loading device 5 and the second servo hydraulic loading device 20.
Specifically, the anchoring section model 8 is a rubber tube, and the free section model 10 is a threaded rod.
Specifically, the first sleeve 9 and the second sleeve 17 are both plastic sleeves.
Specifically, the distance between two adjacent soil pressure boxes is 10 cm.
Specifically, the wall surface 2 of the box body 1 is made of toughened glass
Specifically, the outer surface of the anchoring section model 8 is coated with an epoxy resin layer, and the epoxy resin layer is convenient for the anchoring section model 8 to be pasted with soil particles.
Specifically, an iron sheet 12 is arranged at the right end of the free section model 10, and the first displacement meter 13 is fixedly connected with the iron sheet 12.
Specifically, the cover plate 3 is an iron plate.
A test method of soil body stress strain analogue test device around enlarged footing stock, including following step:
step 1, connecting the anchoring section model 8 and the free section model 10 to form the enlarged head anchor rod model;
step 2, filling a first preset amount of soil body into the box body 1 and compacting to level the top surface of the soil body, wherein the distance between the top surface of the soil body and the central axis of the second through hole is equal to the radius of the anchoring section model;
step 3, inserting the enlarged head anchor model into the box body 1 from the second through hole along the axial direction of the second through hole, wherein the anchor section model is positioned in the middle of the soil body in the box body 1, and the free section model 10 horizontally penetrates through the second through hole;
step 4, connecting the left end of the anchoring section model 8 with a metal wire 18, and enabling the right end of the metal wire 18 to horizontally penetrate through the first through hole;
step 5, continuously filling soil with a second preset amount into the box body 1 and compacting the soil, ensuring that the upper surface of the soil is flush with the top surface of the box body 1, and covering the cover plate 3;
step 6, fixing an iron sheet 12 on the enlarged head anchor rod model, connecting the iron sheet with a first displacement meter 13, and connecting the left end of the metal wire 18 with a second displacement meter 14;
step 7, arranging soil pressure boxes on soil bodies in a vertical plane and a horizontal plane where the center point of the anchoring section model is located at intervals of 10cm, wherein each soil pressure box is in signal connection with a data acquisition instrument;
step 8, connecting the expansion head anchor rod model with a tension and pressure sensor 19, connecting the right end of the expansion head anchor rod model with a second servo hydraulic loading device 20, and connecting the first servo hydraulic loading device 5 with the cover plate 3;
step 9, respectively starting the first servo hydraulic loading device 5 and the second servo hydraulic loading device 20 and loading the first servo hydraulic loading device and the second servo hydraulic loading device to set values;
step 10, the controller 21 controls the first servo hydraulic loading device 5 to load the soil body;
the controller 21 controls the second servo hydraulic loading device to pull the enlarged head anchor rod model, and the actual bearing capacity of the enlarged head anchor rod model is measured by the pull pressure sensor 19;
the first displacement meter 13 detects elastic displacement information of the free-segment model 10 and transmits the elastic displacement information to the controller 21;
the second displacement meter 14 detects horizontal displacement information of the enlarged head anchor model and transmits the horizontal displacement information to the controller 21;
the data acquisition instrument 22 collects pressure information of each soil pressure cell and transmits the soil pressure information to the controller 21;
the controller 21 simulates a soil stress-strain process around the enlarged head anchor model in the uplift process of the enlarged head anchor model according to the actual bearing capacity, the elastic displacement information, the horizontal displacement information and the soil pressure information, so that the action mechanism of the enlarged head anchor can be conveniently researched, and the safe application and popularization of the enlarged head anchor can be promoted.
The embodiments described in this specification are merely exemplary of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention is intended to cover all technical equivalents that may be conceived by one skilled in the art based on the inventive concepts.
Claims (8)
1. The utility model provides an enlarged footing stock is soil body stress strain analogue test device on every side which characterized in that: the device comprises a test box and an enlarged head anchor rod model;
the expanded head anchor rod model comprises a tubular anchoring section model and a rod-shaped free section model, a first sleeve is coaxially and fixedly sleeved outside the free section model, and the anchoring section model is fixedly sleeved on the left end of the sleeve;
the test box comprises a box body, wherein the top surface of the box body is provided with an opening for filling soil, the opening is provided with a cover plate for sealing, and the cover plate covers the top surface of the box body; a first reaction frame is erected on the box body, a first servo hydraulic loading device which vertically extends downwards to load and apply pressure to the cover plate is arranged on the first reaction frame, and the bottom end of the first servo hydraulic loading device is in contact with the upper surface of the cover plate;
the box body is filled with soil, a second reaction frame is arranged on the left side of the box body, a third reaction frame is arranged on the right side of the box body, a first through hole is formed in the left side surface of the box body, a second through hole is formed in the right side surface of the box body, and the central axes of the first through hole and the second through hole are overlapped;
the enlarged head anchor rod model horizontally penetrates into the box body from the second through hole along the central axis direction of the second through hole, the anchoring section model is buried in the middle of the soil body, the first sleeve separates the soil body from the free section model, and the right end of the free section model horizontally penetrates through the second through hole and the third reaction frame; the right end of the free section model is connected with a second servo hydraulic loading device for horizontally pulling the expansion head anchor rod model; the right end of the free section model is also connected with a tension and pressure sensor for measuring the horizontal tension borne by the enlarged head anchor rod model and a first displacement meter for measuring the elastic displacement information of the free section model;
the left end of the anchoring section model is connected with the right end of a metal wire, the left end of the metal wire sequentially penetrates through the first through hole and the second reaction frame, the left end of the metal wire is connected with a second displacement meter used for measuring horizontal displacement information of the enlarged head anchor rod model, and a second sleeve used for isolating the metal wire and the soil body is further sleeved on the metal wire;
a plurality of soil pressure boxes for detecting soil pressure information are distributed on the soil body in the vertical plane and the horizontal plane where the center point of the anchoring section model is located at equal intervals, and each soil pressure box is in signal connection with a data acquisition instrument so as to collect the soil pressure information of the soil body;
the data acquisition instrument is in signal connection with the controller so as to transmit the soil pressure information to the controller;
the first displacement meter and the second displacement meter are respectively in signal connection with the controller so as to respectively transmit the detected elastic displacement information and the detected horizontal displacement information to the controller;
the first servo hydraulic loading device and the second servo hydraulic loading device are connected with the controller through signals, and the controller controls the first servo hydraulic loading device and the second servo hydraulic loading device.
2. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: the anchoring section model is a rubber tube, and the free section model is a threaded rod.
3. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: the first sleeve and the second sleeve are both plastic sleeves.
4. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: the distance between two adjacent soil pressure boxes is 10 cm.
5. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: the wall surface of the box body is made of toughened glass.
6. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: and an epoxy resin layer is coated on the outer surface of the anchoring section model.
7. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: and an iron sheet is arranged at the right end of the free section model, and the first displacement meter is fixedly connected with the iron sheet.
8. The enlarged footing stock surrounding soil body stress-strain simulation test device of claim 1, characterized in that: the cover plate is an iron plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261837.8U CN209841563U (en) | 2018-12-30 | 2018-12-30 | Soil body stress strain analogue test device around enlarged footing stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261837.8U CN209841563U (en) | 2018-12-30 | 2018-12-30 | Soil body stress strain analogue test device around enlarged footing stock |
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| Publication Number | Publication Date |
|---|---|
| CN209841563U true CN209841563U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822261837.8U Withdrawn - After Issue CN209841563U (en) | 2018-12-30 | 2018-12-30 | Soil body stress strain analogue test device around enlarged footing stock |
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| Country | Link |
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| CN (1) | CN209841563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580373A (en) * | 2018-12-30 | 2019-04-05 | 浙江工业大学 | Enlarged footing anchor pole surrounding soil ess-strain simulates experimental rig and its test method |
| CN112681403A (en) * | 2020-12-07 | 2021-04-20 | 浙江工业大学 | Model test device and test method capable of changing angle of anchor rod |
-
2018
- 2018-12-30 CN CN201822261837.8U patent/CN209841563U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580373A (en) * | 2018-12-30 | 2019-04-05 | 浙江工业大学 | Enlarged footing anchor pole surrounding soil ess-strain simulates experimental rig and its test method |
| CN109580373B (en) * | 2018-12-30 | 2023-11-17 | 浙江工业大学 | Device and method for simulating stress and strain of soil around enlarged head anchor rod |
| CN112681403A (en) * | 2020-12-07 | 2021-04-20 | 浙江工业大学 | Model test device and test method capable of changing angle of anchor rod |
| CN112681403B (en) * | 2020-12-07 | 2022-10-04 | 浙江工业大学 | Model test device and test method capable of changing angle of anchor rod |
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