Due to the difficulty and weakness of current stress measurement methods in deep soft rock, a new rheological stress recovery method of the determination of the three-dimensional(3D) stress tensor is proposed. It is s...Due to the difficulty and weakness of current stress measurement methods in deep soft rock, a new rheological stress recovery method of the determination of the three-dimensional(3D) stress tensor is proposed. It is supposed that rock stresses will recovery gradually with time and can be measured by embedding transducers into the borehole. In order to explore the applicability and accuracy of this method, analytical solutions are developed for stress measurement with the rheological stress recovery method in a viscoelastic surrounding rock, the rheological properties of which are depicted as both the Burger's model and a 3-parameter solid model. In such conditions, explicit analytical expressions for predicting time-dependent pressures on the transducer are derived. A parametric analysis is then adopted to investigate the influences of the grout solidification time and the mechanical properties of the grout layer. The results indicate that this method is suitable for stress measurement in deep soft rock, the characteristics of which are soft, fractured and subjected to high geo-stress.展开更多
This study explores how school physical education promotes students’mental health education,focusing on analyzing the impact of sports activities on improving students’self-esteem,reducing psychological stress,impro...This study explores how school physical education promotes students’mental health education,focusing on analyzing the impact of sports activities on improving students’self-esteem,reducing psychological stress,improving social skills and other aspects of mental health.By analyzing the connotation and function of school sports,supported by the three theories of self-determination,stress reduction,and social support,the relationship between the adjustment effect of school sports on students’psychology,the cultivation of psychological resilience in sports competitions,and the impact of sports on social activities was analyzed.This proves that school physical education has significant advantages in students’self-esteem,stress resistance,and social skills.It is recommended that educational decision makers and school administrators focus on curriculum innovation and differentiated customization,strengthen participation and self-efficacy cultivation,sports skills improvement and psychological construction,team cohesion and social network construction,cross-border integration and system integration,increase investment in school sports facilities and procedures,design more diverse and highly participatory sports activities,and more effectively promote students’mental health growth.展开更多
基金supported by the National Basic Research Program of China (No.2014CB046904)the National Natural Science Foundation of China (Nos.41130742 and 11302242)
文摘Due to the difficulty and weakness of current stress measurement methods in deep soft rock, a new rheological stress recovery method of the determination of the three-dimensional(3D) stress tensor is proposed. It is supposed that rock stresses will recovery gradually with time and can be measured by embedding transducers into the borehole. In order to explore the applicability and accuracy of this method, analytical solutions are developed for stress measurement with the rheological stress recovery method in a viscoelastic surrounding rock, the rheological properties of which are depicted as both the Burger's model and a 3-parameter solid model. In such conditions, explicit analytical expressions for predicting time-dependent pressures on the transducer are derived. A parametric analysis is then adopted to investigate the influences of the grout solidification time and the mechanical properties of the grout layer. The results indicate that this method is suitable for stress measurement in deep soft rock, the characteristics of which are soft, fractured and subjected to high geo-stress.
基金Project: 2022 National Key Research Base of Philosophy and Social Sciences on Physical Health and Sports Research Theme, Sichuan Province: “Study on the Promotion of School Sports to Promote the ‘Double Reduction’ of Middle School Students’ Mental Health, Exploratory Research on the Penetration of Mental Health Education Into Middle School Sports”, Project Number: GT-022022217.Project: 2021 National Physical Health and Sports Research Project of the Key Research Base of Philosophy and Social Sciences in Zigong City, Sichuan Province: “Analytical Research on the Penetration of Mental Health Education Into Middle School Physical Education”, Project Number: GT-03202103.
文摘This study explores how school physical education promotes students’mental health education,focusing on analyzing the impact of sports activities on improving students’self-esteem,reducing psychological stress,improving social skills and other aspects of mental health.By analyzing the connotation and function of school sports,supported by the three theories of self-determination,stress reduction,and social support,the relationship between the adjustment effect of school sports on students’psychology,the cultivation of psychological resilience in sports competitions,and the impact of sports on social activities was analyzed.This proves that school physical education has significant advantages in students’self-esteem,stress resistance,and social skills.It is recommended that educational decision makers and school administrators focus on curriculum innovation and differentiated customization,strengthen participation and self-efficacy cultivation,sports skills improvement and psychological construction,team cohesion and social network construction,cross-border integration and system integration,increase investment in school sports facilities and procedures,design more diverse and highly participatory sports activities,and more effectively promote students’mental health growth.
