CN217688180U - Shear strength testing device for tunnel face of soft soil tunnel - Google Patents
Shear strength testing device for tunnel face of soft soil tunnel Download PDFInfo
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- CN217688180U CN217688180U CN202123230410.XU CN202123230410U CN217688180U CN 217688180 U CN217688180 U CN 217688180U CN 202123230410 U CN202123230410 U CN 202123230410U CN 217688180 U CN217688180 U CN 217688180U
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- rotating wheel
- soft soil
- shear strength
- traction rope
- cross plate
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Abstract
The utility model provides a weak soil tunnel palm face shear strength testing arrangement, weak soil tunnel palm face shear strength testing arrangement includes: supporting mechanism, drive mechanism and cross shear plate, supporting mechanism is used for upwards supporting drive mechanism and cross shear plate, drive mechanism is used for rotating the cross shear plate towards soft soil tunnel palm face. The utility model provides a soft soil tunnel palm face shear strength testing arrangement can carry out spot test to the shear strength of vertically soft soil tunnel palm face to it is difficult to have solved the not drainage shear strength test of vertically soft soil tunnel palm face, and the difficult problem of stability rapid assessment.
Description
Technical Field
The utility model belongs to the technical field of the weak soil tunnel, especially, relate to a weak soil tunnel palm face shear strength testing arrangement, the weak soil tunnel who relates to in mainly being applicable to water and electricity, municipal administration, traffic, the railway.
Background
The soft soil tunnel construction occupies a large proportion in the total construction amount of underground engineering in various industries, particularly in the municipal engineering industry. The soft soil tunnel adopts a step-by-step reserved core soil sequential excavation method, so that the construction procedures are multiple, and the construction period is greatly influenced. As the full-section excavation method has the characteristics of high safety, strong controllability and the like, the full-section excavation method is more and more widely applied along with the continuous improvement of construction equipment and level.
The non-drainage shear strength of the soil body, namely the ultimate capacity of resisting shear damage of the soil under the condition factor of non-drainage, is a main mechanical property index of the soil for evaluating the stability, the bearing capacity and the like of the building foundation, and can be obtained by carrying out in-situ test through a cross plate shear test. The conventional testing device and equipment are mainly used for testing horizontal strata, and have certain difficulty for testing a vertical working face.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a weak soil tunnel palm face shear strength testing arrangement to the not enough of existence among the prior art.
For this reason, the above-mentioned purpose of the present invention is achieved by the following technical solutions:
the utility model provides a soft soil tunnel palm face shear strength testing arrangement which characterized in that: soft soil tunnel palm face shear strength testing arrangement includes: supporting mechanism, drive mechanism and cross shear plate, supporting mechanism is used for upwards supporting drive mechanism and cross shear plate, drive mechanism is used for rotating the cross shear plate towards soft soil tunnel palm face.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses an preferred technical scheme: the supporting mechanism comprises a bottom plate, a plurality of supporting legs and a workbench, the lower ends of the supporting legs are fixed to the bottom plate, and the upper ends of the supporting legs are fixed to the lower portion of the workbench.
As the utility model discloses an preferred technical scheme: the edge of the workbench is provided with a traction rope notch for freely falling the traction rope.
As the utility model discloses an preferred technical scheme: the supporting legs are upper and lower two sections, and supporting leg adjusting knobs are arranged at the joints of the upper and lower two sections and used for adjusting the height of the workbench.
As the utility model discloses an preferred technical scheme: the upper surface of the workbench is provided with a level bubble.
As the utility model discloses a preferred technical scheme: the transmission mechanism comprises a traction rope rotating wheel, a cross plate rotating wheel, a traction rope and a cross plate connecting rod; the traction rope is arranged on the traction rope rotating wheel and the cross plate rotating wheel in a penetrating mode, a cross plate connecting rod is fixed to the side face of the cross plate rotating wheel, the other end of the cross plate connecting rod is fixed to the cross shear plate, and the traction rope rotating wheel and the cross plate rotating wheel are respectively erected on the traction rope rotating wheel supporting frame and the cross plate rotating wheel supporting frame.
As the utility model discloses an preferred technical scheme: and the middle part of the cross plate connecting rod is also provided with a cross plate supporting frame.
The utility model provides a soft soil tunnel palm face shear strength testing arrangement can carry out spot test to the shear strength of vertically soft soil tunnel palm face to it is difficult to have solved the not drainage shear strength test of vertically soft soil tunnel palm face, and the difficult problem of stability rapid assessment.
Drawings
Fig. 1 is the whole diagram of the shear strength testing device for the tunnel face of the soft soil tunnel provided by the utility model.
FIG. 2 is a schematic view of the cross plate runner, cross plate connecting rod and cross shear plate connection.
Fig. 3 is a use diagram of the shear strength testing device for the tunnel face of the soft soil tunnel provided by the utility model.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the shear strength testing device for the soft soil tunnel face mainly comprises a bottom plate 1, supporting legs 2, supporting leg adjusting knobs 3, a workbench 4, a traction rope rotating wheel support frame 5, traction rope rotating wheels 6, a cross plate rotating wheel support frame 7, a cross plate rotating wheel 8, a cross plate support frame 9, a cross plate connecting rod 10, a cross shear plate 11, a leveling bubble 12, a traction rope 13 and a traction rope notch 14.
The shear strength testing device for the tunnel face of the soft soil tunnel mainly comprises a supporting mechanism, a transmission mechanism and a cross shear plate.
The supporting mechanism mainly comprises a bottom plate 1 and a workbench 4, the bottom plate 1 is connected with the workbench 4 through 4 supporting legs 2, the supporting legs 2 are divided into an upper section and a lower section, the height can be adjusted through supporting leg adjusting knobs 3, and the workbench 4 can be shown to reach a horizontal state through a level bubble 12.
The transmission mechanism mainly comprises a traction rope rotating wheel support frame 5, a traction rope rotating wheel 6, a cross plate rotating wheel support frame 7, a cross plate rotating wheel 8, a traction rope 13 and a cross plate connecting rod 10; the bottom of the traction rope rotating wheel support frame 5 is fixed on the workbench 4, and the upper part of the traction rope rotating wheel support frame is fixed with a traction rope rotating wheel 6; the bottom of the cross plate rotating wheel bracket 7 is fixed on the workbench 4, and the upper part is fixed with a cross plate rotating wheel 8; the center and the size of the traction rope rotating wheel 6 are the same as those of the cross plate rotating wheel 8, and the rotating wheel is provided with a groove, so that the traction rope 13 can be wound and slide conveniently; one section of the traction rope 13 is fixed on the cross plate rotating wheel 8, bypasses the cross plate rotating wheel 8 and the traction rope rotating wheel 6, and passes through a traction rope notch 14 on the workbench; a force can be applied by pulling the free end of the rope 13.
As shown in fig. 2, a cross shear plate 11 is fixed to one end of a cross plate connecting rod 10, and the other end of the cross plate connecting rod 10 is fixed to the cross plate runner 8. If the length of the cross plate connecting rod 10 is longer, a cross plate supporting frame 9 can be further arranged to support the cross plate connecting rod 10 upwards.
The traction rope 13 drives the fixed cross plate rotating wheel 8 under the action of the free end pulling force, the cross shear plate 11 is driven through the cross plate connecting rod 10, and when the pulling force reaches a certain value, the soft soil tunnel face is sheared and damaged.
As shown in fig. 3, fig. 3 is a diagram of the shear strength testing device for the tunnel face of the soft soil tunnel provided by the present invention, 15 is the ground, and 16 is the tunnel face of the soft soil tunnel.
The above-mentioned embodiments are only for explaining the preferred embodiments of the present invention, and not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention fall within the protection scope of the present invention within the spirit and the protection scope of the claims.
Claims (5)
1. The utility model provides a soft soil tunnel face shear strength testing arrangement which characterized in that: soft soil tunnel palm face shear strength testing arrangement includes: the supporting mechanism is used for upwards supporting the transmission mechanism and the cross shear plate, and the transmission mechanism is used for rotating the cross shear plate towards the tunnel face of the soft soil tunnel;
the supporting mechanism comprises a bottom plate, a plurality of supporting legs and a workbench, the lower ends of the supporting legs are fixed on the bottom plate, and the upper ends of the supporting legs are fixed below the workbench;
the edge of the workbench is provided with a traction rope notch for freely falling the traction rope.
2. The soft soil tunnel face shear strength testing device of claim 1, characterized in that: the supporting legs are upper and lower two sections, and supporting leg adjusting knobs are arranged at the joints of the upper and lower two sections and used for adjusting the height of the workbench.
3. The soft soil tunnel face shear strength testing device of claim 2, characterized in that: and a level bubble is arranged on the upper surface of the workbench.
4. The soft soil tunnel face shear strength testing device of claim 1, characterized in that: the transmission mechanism comprises a traction rope rotating wheel, a cross plate rotating wheel, a traction rope and a cross plate connecting rod; the traction rope is arranged on the traction rope rotating wheel and the cross plate rotating wheel in a penetrating mode, a cross plate connecting rod is fixed to the side face of the cross plate rotating wheel, the other end of the cross plate connecting rod is fixed to the cross shear plate, and the traction rope rotating wheel and the cross plate rotating wheel are respectively erected on the traction rope rotating wheel supporting frame and the cross plate rotating wheel supporting frame.
5. The soft soil tunnel face shear strength testing device of claim 4, characterized in that: and the middle part of the cross plate connecting rod is also provided with a cross plate supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123230410.XU CN217688180U (en) | 2021-12-21 | 2021-12-21 | Shear strength testing device for tunnel face of soft soil tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123230410.XU CN217688180U (en) | 2021-12-21 | 2021-12-21 | Shear strength testing device for tunnel face of soft soil tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217688180U true CN217688180U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123230410.XU Active CN217688180U (en) | 2021-12-21 | 2021-12-21 | Shear strength testing device for tunnel face of soft soil tunnel |
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| CN (1) | CN217688180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544385A (en) * | 2021-12-21 | 2022-05-27 | 中国电建集团华东勘测设计研究院有限公司 | Shear strength testing device for tunnel face of soft soil tunnel and stability evaluation method |
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2021
- 2021-12-21 CN CN202123230410.XU patent/CN217688180U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544385A (en) * | 2021-12-21 | 2022-05-27 | 中国电建集团华东勘测设计研究院有限公司 | Shear strength testing device for tunnel face of soft soil tunnel and stability evaluation method |
| CN114544385B (en) * | 2021-12-21 | 2024-05-24 | 中国电建集团华东勘测设计研究院有限公司 | Soft soil tunnel face shear strength testing device and stability evaluation method |
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