Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions
Compared with most dynamic tests, point load test is widely used in engineering practice because of its wide requirements for test conditions. In offshore mining engineering, the surrounding rock is affected by dynamic load impact and corrosion of various aqueous solutions for a long time. Therefore...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2023/3925252 |
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| _version_ | 1832558491970043904 |
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| author | Ming Zhou Lan Qiao An Luo Qingwen Li |
| author_facet | Ming Zhou Lan Qiao An Luo Qingwen Li |
| author_sort | Ming Zhou |
| collection | DOAJ |
| description | Compared with most dynamic tests, point load test is widely used in engineering practice because of its wide requirements for test conditions. In offshore mining engineering, the surrounding rock is affected by dynamic load impact and corrosion of various aqueous solutions for a long time. Therefore, it is of great significance to study the influence of hydrochemical corrosion on dynamic mechanical properties of rock to ensure the stability of surrounding rock. In this paper, a large number of dynamic point load and dynamic uniaxial compression tests were carried out on the granite mined from a large mine by using the Split Hopkinson pressure bar test device after the corrosion of pH values of 2, 5, and 7 solutions, respectively. Based on the energy theory, the crushing energy consumption in the test process is analyzed, and finally the fitting formula of the dynamic compressive strength and the crushing energy consumption in the dynamic point load test is obtained through fitting analysis. The results show that when the crushing energy consumption in the dynamic point load test is used to estimate the dynamic compressive strength, a certain crushing energy consumption (the final value of this test is 70 J in this paper) is more accurate, and it can estimate the dynamic compressive strength under various corrosion conditions under this crushing energy consumption. However, with the change of crushing energy consumption in the dynamic point load test, this transformation relationship is no longer accurate, and it is necessary to modify this transformation relationship with corrosion condition as the influencing factor. This conclusion can provide reference for obtaining the dynamic compressive strength of rocks under different corrosion conditions in engineering field in the future. |
| format | Article |
| id | doaj-art-f94398b5bc094f8bbec05b00cc247636 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f94398b5bc094f8bbec05b00cc2476362025-02-03T01:32:19ZengWileyShock and Vibration1875-92032023-01-01202310.1155/2023/3925252Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion ConditionsMing Zhou0Lan Qiao1An Luo2Qingwen Li3University of Science & Technology BeijingUniversity of Science & Technology BeijingUniversity of Science & Technology BeijingUniversity of Science & Technology BeijingCompared with most dynamic tests, point load test is widely used in engineering practice because of its wide requirements for test conditions. In offshore mining engineering, the surrounding rock is affected by dynamic load impact and corrosion of various aqueous solutions for a long time. Therefore, it is of great significance to study the influence of hydrochemical corrosion on dynamic mechanical properties of rock to ensure the stability of surrounding rock. In this paper, a large number of dynamic point load and dynamic uniaxial compression tests were carried out on the granite mined from a large mine by using the Split Hopkinson pressure bar test device after the corrosion of pH values of 2, 5, and 7 solutions, respectively. Based on the energy theory, the crushing energy consumption in the test process is analyzed, and finally the fitting formula of the dynamic compressive strength and the crushing energy consumption in the dynamic point load test is obtained through fitting analysis. The results show that when the crushing energy consumption in the dynamic point load test is used to estimate the dynamic compressive strength, a certain crushing energy consumption (the final value of this test is 70 J in this paper) is more accurate, and it can estimate the dynamic compressive strength under various corrosion conditions under this crushing energy consumption. However, with the change of crushing energy consumption in the dynamic point load test, this transformation relationship is no longer accurate, and it is necessary to modify this transformation relationship with corrosion condition as the influencing factor. This conclusion can provide reference for obtaining the dynamic compressive strength of rocks under different corrosion conditions in engineering field in the future.http://dx.doi.org/10.1155/2023/3925252 |
| spellingShingle | Ming Zhou Lan Qiao An Luo Qingwen Li Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions Shock and Vibration |
| title | Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions |
| title_full | Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions |
| title_fullStr | Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions |
| title_full_unstemmed | Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions |
| title_short | Study on the Numerical Relationship between Dynamic Compressive Strength and Crushing Energy Consumption in Dynamic Point Load Test under Different Corrosion Conditions |
| title_sort | study on the numerical relationship between dynamic compressive strength and crushing energy consumption in dynamic point load test under different corrosion conditions |
| url | http://dx.doi.org/10.1155/2023/3925252 |
| work_keys_str_mv | AT mingzhou studyonthenumericalrelationshipbetweendynamiccompressivestrengthandcrushingenergyconsumptionindynamicpointloadtestunderdifferentcorrosionconditions AT lanqiao studyonthenumericalrelationshipbetweendynamiccompressivestrengthandcrushingenergyconsumptionindynamicpointloadtestunderdifferentcorrosionconditions AT anluo studyonthenumericalrelationshipbetweendynamiccompressivestrengthandcrushingenergyconsumptionindynamicpointloadtestunderdifferentcorrosionconditions AT qingwenli studyonthenumericalrelationshipbetweendynamiccompressivestrengthandcrushingenergyconsumptionindynamicpointloadtestunderdifferentcorrosionconditions |