Experimental Study on the Effect of Temperature on the Characteristics of Cutterhead Mud Cake in Complex Red-Bed Geology
Abstract
:1. Introduction
2. Engineering Background
3. Materials and Methods
3.1. Experimental Materias
3.2. Experimental Methods
- Preparation of the soil samples for the experiment. After removing impurities from the mud cake, the dried soil samples are rehydrated to their natural water content to prepare the experimental soil samples.
- Development of the adhesion device and mud cake shedding experiments. First, a device is developed to prepare mud cake samples that simulate actual conditions. This device applies pressure to the mud cake, mimicking the pressure on the cutter head face, while also using motor rotation to simulate the turning of the cutter head, creating mud cakes that closely resemble real conditions. Subsequently, the cutter head with an adhered mud cake is placed in an oven to bake, simulating the adhesion characteristics of the cutter head and mud cake at different temperatures and durations.
- The mud cake hardness test involves using a pressure gauge with a conical head to perform a compressive penetration destruction test on the mud cake adhering to the cutter head. The compressive penetration load is used to characterize the hardness of the mud cake, obtaining hardness values under various temperatures and durations.
3.2.1. Preparation of Laboratory Soil Samples
3.2.2. Mud Cake Adhesion Preparation Device
3.2.3. Mud Cake Shedding Test
3.2.4. Mud Cake Hardness Test
3.2.5. Test Samples
4. Results
4.1. The Impact of Temperature and Time on Mud Cake Shedding
4.1.1. The Impact of Temperature on Mud Cake Shedding Amount and Rate
4.1.2. The Impact of Time on Mud Cake Shedding Amount and Rate
4.2. The Impact of Water Content on Mud Cake Shedding
4.3. The Results of Mud Cake Hardness Tests
5. Discussion
5.1. Water Film Theory
5.2. Adhesion Mechanism at Different Water Contents
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Water Content (%) | Natural Water Content (%) | Liquid Limit (%) | Plastic Limit (%) |
---|---|---|---|
15.13 | 36.5 | 42 | 23 |
Test Sample | Temperature (°C) | Time (min) | Test Sample | Temperature (°C) | Time (min) |
---|---|---|---|---|---|
T25-10 | 25 | 10 | T125-10 | 125 | 10 |
T25-20 | 25 | 20 | T125-20 | 125 | 20 |
T25-30 | 25 | 30 | T125-30 | 125 | 30 |
T25-40 | 25 | 40 | T125-40 | 125 | 40 |
T25-50 * | 25 | 50 | T125-50 * | 125 | 50 |
T50-10 | 50 | 10 | T150-10 | 150 | 10 |
T50-20 | 50 | 20 | T150-20 | 150 | 20 |
T50-30 | 50 | 30 | T150-30 | 150 | 30 |
T50-40 | 50 | 40 | T150-40 | 150 | 40 |
T50-50 * | 50 | 50 | T150-50 * | 150 | 50 |
T75-10 | 75 | 10 | T175-10 | 175 | 10 |
T75-20 | 75 | 20 | T175-20 | 175 | 20 |
T75-30 | 75 | 30 | T175-30 | 175 | 30 |
T75-40 | 75 | 40 | T175-40 | 175 | 40 |
T75-50 * | 75 | 50 | T175-50 * | 175 | 50 |
T100-10 | 100 | 10 | T200-10 | 200 | 10 |
T100-20 | 100 | 20 | T200-20 | 200 | 20 |
T100-30 | 100 | 30 | T200-30 | 200 | 30 |
T100-40 | 100 | 40 | T200-40 | 200 | 40 |
T100-50 * | 100 | 50 | T200-50 * | 200 | 50 |
Test Sample | Force (N) | Percentage Increase (%) |
---|---|---|
T25-50 * | 6.68 | 0 |
T50-50 * | 7.67 | 14.8 |
T75-50 * | 8.92 | 16.3 |
T100-50 * | 16.70 | 87.2 |
T125-50 * | 14.69 | -12.0 |
T150-50 * | 22.52 | 53.3 |
T175-50 * | 31.32 | 39.1 |
T200-50 * | 52.10 | 66.3 |
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Yan, J.; Xue, X.; Xue, K.; Gong, C.; Zhang, K. Experimental Study on the Effect of Temperature on the Characteristics of Cutterhead Mud Cake in Complex Red-Bed Geology. Coatings 2024, 14, 1071. https://doi.org/10.3390/coatings14081071
Yan J, Xue X, Xue K, Gong C, Zhang K. Experimental Study on the Effect of Temperature on the Characteristics of Cutterhead Mud Cake in Complex Red-Bed Geology. Coatings. 2024; 14(8):1071. https://doi.org/10.3390/coatings14081071
Chicago/Turabian StyleYan, Jinshuo, Xingwei Xue, Kaiwen Xue, Chaofan Gong, and Kexin Zhang. 2024. "Experimental Study on the Effect of Temperature on the Characteristics of Cutterhead Mud Cake in Complex Red-Bed Geology" Coatings 14, no. 8: 1071. https://doi.org/10.3390/coatings14081071