CN213580438U - Automatic collecting device for rock point load strength - Google Patents
Automatic collecting device for rock point load strength Download PDFInfo
- Publication number
- CN213580438U CN213580438U CN202023032419.5U CN202023032419U CN213580438U CN 213580438 U CN213580438 U CN 213580438U CN 202023032419 U CN202023032419 U CN 202023032419U CN 213580438 U CN213580438 U CN 213580438U
- Authority
- CN
- China
- Prior art keywords
- automatic
- point load
- main body
- rock
- blocking rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a rock point load intensity automatic acquisition device, include: the device comprises a main body support (1), a pressure sensor (3), an automatic pressurizing jack (4) and a protective cover (7); the top of the main body bracket (1) is provided with an upper blocking rod (1.1); the pressure sensor (3) is arranged below the upper blocking rod (1.1); the automatic pressurizing jack (4) is installed at the lower part of the main body bracket (1); the jacking piece of the automatic pressurizing jack (4) is positioned right below the pressure sensor (3); the middle part of the main body bracket (1) is provided with the protective cover (7). Has the following advantages: the utility model provides a rock point load intensity automatic acquisition device has characteristics such as ageing strong, on-the-spot simple operation, data wireless transmission, accuracy height, can realize tunnel developments meticulous country rock is hierarchical for the construction becomes more according to can, and guarantee tunnel construction safety guarantees that the tunnel construction investment is more reasonable.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, concretely relates to rock point load intensity automatic acquisition device.
Background
Since the 21 st century, tunnel and underground engineering in China have never been developed with the continuous development of economy, continuous promotion of comprehensive national force and continuous application of high and new technology. The tunnel surrounding rock grade is used as an important basis for tunnel design and construction, and the safety construction and the total construction investment of tunnel engineering are seriously influenced. The classification of the surrounding rock of the tunnel is a foundation for correctly designing and constructing the tunnel, and the classification of the surrounding rock which accords with the actual condition of tunnel engineering has very important significance for improving the tunneling speed of the tunnel and ensuring the construction quality. According to relevant data statistics, in the mountain tunnel construction process, the accuracy of surrounding rock classification in the exploration stage of China is generally 50%, 30% -40% of classification results are different from actual results by 1-2 levels, and accordingly the design scheme is greatly different from the actual working conditions. The main differences are two aspects: the first case is: the quality of the designed surrounding rock is lower than that of the actually excavated surrounding rock, so that the designed support is stronger than the actually required support, and huge waste can be caused if the support is constructed according to the design; the second case is: the actual quality of the surrounding rock is better than the quality of the surrounding rock estimated in the design stage, so the designed support is weaker than the actual requirement, if the support is constructed according to the design, the support is unsafe and collapse is possible, thereby casualties and property loss in different degrees can be caused, and the construction period is influenced. In addition geological conditions are comparatively complicated, cause the country rock rank to change greatly, in order to guarantee construction quality and construction progress, need further change country rock rank in the work progress, but the method that mainly adopts at present is indoor test, on-the-spot geological survey and the test of traditional point load appearance: in the aspect of indoor test, test conditions cannot be provided on site; (II) the field geological survey excessively depends on the field experience of personnel; in the tunnel construction process, the construction site environment is complex, the traditional point loading instrument is complex in test operation, data errors are easily caused, the construction is influenced, and the tunnel construction safety and the construction investment are greatly influenced.
SUMMERY OF THE UTILITY MODEL
The defect to prior art exists, the utility model provides a rock point load intensity automatic acquisition device can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a rock point load intensity automatic acquisition device, include: the device comprises a main body support (1), a pressure sensor (3), an automatic pressurizing jack (4) and a protective cover (7);
the top of the main body bracket (1) is provided with an upper blocking rod (1.1); the pressure sensor (3) is arranged below the upper blocking rod (1.1); the automatic pressurizing jack (4) is installed at the lower part of the main body bracket (1); the jacking piece of the automatic pressurizing jack (4) is positioned right below the pressure sensor (3); the middle part of the main body bracket (1) is provided with the protective cover (7).
Preferably, the middle part of the main body bracket (1) is provided with a lower blocking rod (1.2); the lower blocking rod (1.2) and the upper blocking rod (1.1) are arranged in parallel.
Preferably, the protective cover (7) is mounted between the lower blocking rod (1.2) and the upper blocking rod (1.1).
Preferably, the automatic pressurizing jack (4) is connected with a power supply (2).
Preferably, the power supply (2) adopts a storage battery or commercial power.
Preferably, the automatic pressurizing jack (4) is provided with an indicator lamp (5).
Preferably, the pressure sensor (3) is connected with the wireless transmission unit through a signal acquisition and conversion circuit.
The utility model provides a rock point load intensity automatic acquisition device has following advantage:
the utility model provides a rock point load intensity automatic acquisition device has characteristics such as ageing strong, on-the-spot simple operation, data wireless transmission, accuracy height, can realize tunnel developments meticulous country rock is hierarchical for the construction becomes more according to can, and guarantee tunnel construction safety guarantees that the tunnel construction investment is more reasonable.
Drawings
Fig. 1 is a schematic structural view of an automatic rock point load strength collecting device provided by the present invention;
fig. 2 is a schematic view of a three-dimensional structure of the automatic rock point load strength collecting device provided by the utility model;
fig. 3 is the utility model provides a rock point load strength automatic acquisition device's schematic diagram.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a rock point load strength automatic acquisition device has characteristics such as ageing strong, on-the-spot simple operation, data wireless transmission, accuracy height, can realize tunnel developments meticulous country rock is hierarchical for the construction becomes more according to can, and guarantee tunnel construction safety guarantees that the tunnel construction investment is more reasonable.
Referring to fig. 1, fig. 2 and fig. 3, the utility model provides a rock point load intensity automatic acquisition device, include: the device comprises a main body support 1, a pressure sensor 3, an automatic pressurizing jack 4 and a protective cover 7;
the top of the main body bracket 1 is provided with an upper blocking rod 1.1; the pressure sensor 3 is arranged below the upper blocking rod 1.1; the automatic pressurizing jack 4 is arranged at the lower part of the main body bracket 1; the jacking piece of the automatic pressurizing jack 4 is positioned right below the pressure sensor 3; the middle part of the main body bracket 1 is provided with the protective cover 7.
In a specific implementation, the middle part of the main body bracket 1 is provided with a lower blocking rod 1.2; the lower blocking rod 1.2 and the upper blocking rod 1.1 are arranged in parallel. The protective cover 7 is arranged between the lower blocking rod 1.2 and the upper blocking rod 1.1.
The automatic pressurizing jack 4 is connected with a power supply 2. The power supply 2 adopts a storage battery or commercial power.
The automatic pressurizing jack 4 is provided with an indicator lamp 5 for indicating the working state.
The pressure sensor 3 is connected with the wireless transmission unit through a signal acquisition and conversion circuit.
The utility model provides a rock point load intensity automatic acquisition device comprises main part support, automatic pressurization jack, pressure sensor, terminal equipment and power etc. wherein, pressure sensor 3 passes through signal acquisition converting circuit and wireless transmission unit connection. The rock block 6 is placed between the upper blocking rod 1.1 and the lower blocking rod 1.2, the automatic pressurizing jack is used for loading and applying pressure to the rock block 6, the pressure sensor measures a voltage signal when the rock is damaged, the voltage signal is converted into a digital signal through the signal acquisition and conversion circuit, namely, a rock damage load P is transmitted to the terminal equipment through the wireless transmission unit for calculation, and finally, a rock point load intensity index I is obtaineds(50)And calculating the rock point load strength value according to the rock point load strength value. The specific method comprises the following steps:
1. placing an automatic acquisition device for the load strength of the rock points to a stable position in the tunnel;
2. selecting complete rock blocks without obvious dissociation cracks in the tunnel;
3. placing the rock between the automatic pressurizing jack and the pressure sensor on the main body bracket, and obtaining the equivalent diameter D of the rock block by applying the section area of two pointseThe calculation method is as follows:
De＝(4S/π)1/2；
4. electrifying the automatic pressurizing jack to apply pressure to the rock mass;
5. the pressure sensor collects voltage signals and converts the voltage signals into digital signals, namely rock destruction loads P, through the signal collection and conversion circuit under the pressure of the automatic pressurizing jack;
6. the rock damage load is transmitted to the terminal equipment through the wireless transmission unit;
7. the terminal equipment records and displays a rock damage load curve;
8. obtaining a plurality of rock breaking loads Pi according to the steps 3 to 7;
9. calculating the load strength index of the rock point:
Is＝Pi/De 2
Is(50)＝Kd×Is
wherein, KdThe size effect correction factor.
10. Calculation of Is(50)And calculating the average value.
The utility model provides a rock point load intensity automatic acquisition device has following advantage:
the utility model provides a rock point load intensity automatic acquisition device has characteristics such as ageing strong, on-the-spot simple operation, data wireless transmission, accuracy height, can realize tunnel developments meticulous country rock is hierarchical for the construction becomes more according to can, and guarantee tunnel construction safety guarantees that the tunnel construction investment is more reasonable.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (7)
1. The utility model provides a rock point load intensity automatic acquisition device which characterized in that includes: the device comprises a main body support (1), a pressure sensor (3), an automatic pressurizing jack (4) and a protective cover (7);
the top of the main body bracket (1) is provided with an upper blocking rod (1.1); the pressure sensor (3) is arranged below the upper blocking rod (1.1); the automatic pressurizing jack (4) is installed at the lower part of the main body bracket (1); the jacking piece of the automatic pressurizing jack (4) is positioned right below the pressure sensor (3); the middle part of the main body bracket (1) is provided with the protective cover (7).
2. The automatic acquisition device of rock point load strength according to claim 1, characterized in that the middle of the main body bracket (1) is provided with a lower blocking rod (1.2); the lower blocking rod (1.2) and the upper blocking rod (1.1) are arranged in parallel.
3. The automatic collection device of rock point load strength according to claim 2, characterized in that the protective cover (7) is installed between the lower blocking rod (1.2) and the upper blocking rod (1.1).
4. The automatic acquisition device of the rock point load strength according to the claim 1 is characterized in that the automatic pressurizing jack (4) is connected with a power supply (2).
5. The automatic acquisition device of the rock point load strength according to claim 4, characterized in that the power supply (2) adopts a storage battery or commercial power.
6. The automatic collection device of rock point load strength according to claim 1, characterized in that the automatic pressurizing jack (4) has an indicator lamp (5).
7. The automatic acquisition device of rock point load intensity according to claim 1, characterized in that, the pressure sensor (3) is connected with a wireless transmission unit through a signal acquisition and conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023032419.5U CN213580438U (en) | 2020-12-16 | 2020-12-16 | Automatic collecting device for rock point load strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023032419.5U CN213580438U (en) | 2020-12-16 | 2020-12-16 | Automatic collecting device for rock point load strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213580438U true CN213580438U (en) | 2021-06-29 |
Family
ID=76550286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023032419.5U Active CN213580438U (en) | 2020-12-16 | 2020-12-16 | Automatic collecting device for rock point load strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213580438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881168A (en) * | 2021-01-08 | 2021-06-01 | 云南航天工程物探检测股份有限公司 | Method for automatically controlling rock destruction time in point load test |
-
2020
- 2020-12-16 CN CN202023032419.5U patent/CN213580438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881168A (en) * | 2021-01-08 | 2021-06-01 | 云南航天工程物探检测股份有限公司 | Method for automatically controlling rock destruction time in point load test |
| CN112881168B (en) * | 2021-01-08 | 2022-11-04 | 云南航天工程物探检测股份有限公司 | Method for automatically controlling rock destruction time in point load test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616287B (en) | A kind of tunnel excavation indoor model test device | |
| CN202688979U (en) | Integral monitoring system of foundation pit under construction | |
| CN110554169A (en) | tunnel excavation process simulation test device and method | |
| CN103821183A (en) | Testing apparatus for simulating phenomenon and law of soil heave-piping failure | |
| CN213580438U (en) | Automatic collecting device for rock point load strength | |
| CN203572600U (en) | Surrounding rock stress monitoring early warning system based on step type full length slip-casting monitoring anchor poles | |
| CN112857988A (en) | Asymmetric load loading test system and test method for full-scale test of pipe piece | |
| CN101813691A (en) | Method for detecting secondary consolidation coefficient of soft soil indoors and measuring device using same | |
| CN101894454B (en) | Oil derrick stress measurement and data acquisition system based on wireless sensor network | |
| CN210720389U (en) | Tunnel excavation process analogue test device | |
| CN203022725U (en) | Tester for testing stress of pipe pile | |
| CN102733817B (en) | Method for determining construction sizes of tunnel and cavern | |
| CN201826829U (en) | Testing tubular column stress tester | |
| CN201051027Y (en) | Tube penetration and pull measurement device | |
| CN212391189U (en) | Be used for reinforced concrete pier anti-seismic performance loading device | |
| CN203132748U (en) | Soil internal stress change monitoring system in loess place immersing condition | |
| CN201689014U (en) | Portable base plate specific pressure testing device | |
| CN105206157B (en) | hydraulic model test teaching platform | |
| CN209460039U (en) | A kind of prestressing force clamping plate | |
| CN103063513B (en) | Testing device for testing lateral tamping effect of fragmented rock body | |
| CN109580779B (en) | Full-automatic real-time monitoring and early warning system and method for inverted arch structure | |
| CN209820441U (en) | Corner monitoring device for pipe-jacking electric power tunnel | |
| CN204228136U (en) | A kind of fully-mechanized mining working support multidigit state and descending amount of piston Analytical system | |
| CN113375715A (en) | System and method for monitoring construction process and construction quality of high-fill dynamic compaction roadbed | |
| CN207314313U (en) | A kind of transmission line tower foundation collapse monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |