Based on similar material model experiment, this paper studies the subsidence difference of fault hanging wall and lying wall when mining face crosses fault and the normal relative movement regularity of a fault zone....Based on similar material model experiment, this paper studies the subsidence difference of fault hanging wall and lying wall when mining face crosses fault and the normal relative movement regularity of a fault zone. The change in bulking coefficients of fault zone, hanging wall and lying wall are given, the difference of mean bulking coefficients of two fault walls are discussed and the dynamic development pattern of fissure zone during mining face crossing fault is obtained.展开更多
By utilizing the data of the intensive observation period (May-June, 2000) of Dunhuang land-surface process field experiment that belongs to 'Land-atmosphere Interactive Field Experiment over Arid Region of Northw...By utilizing the data of the intensive observation period (May-June, 2000) of Dunhuang land-surface process field experiment that belongs to 'Land-atmosphere Interactive Field Experiment over Arid Region of Northwest China', the bulk momentum transfer coefficient Cd and bulk sensible heat transfer coefficient Ch between surface and atmosphere over desert and Gobi in the arid region are determined according to three different methods. The result shows that, though these bulk transfer coefficients are different, they are in the same order. Especially, the means of Cd and Ch are close. Moreover, through analyzing the wind direction, the interference of the building near the observational station with the data is eliminated. From this, the relation between the bulk transfer coefficients and the bulk Richardson number and the range of the typical values of the bulk transfer coefficients over desert and Gobi in the typical arid region are obtained.展开更多
文摘Based on similar material model experiment, this paper studies the subsidence difference of fault hanging wall and lying wall when mining face crosses fault and the normal relative movement regularity of a fault zone. The change in bulking coefficients of fault zone, hanging wall and lying wall are given, the difference of mean bulking coefficients of two fault walls are discussed and the dynamic development pattern of fissure zone during mining face crossing fault is obtained.
基金This work was supported by theNational Key Programme for Basic Sciences --"Research on Formation Mechanism and Prediction Theory of Heavy ClimaticDisaster in China" (Grant No. G1998040904-2) the National Natural Science Foundation of China (Grant
文摘By utilizing the data of the intensive observation period (May-June, 2000) of Dunhuang land-surface process field experiment that belongs to 'Land-atmosphere Interactive Field Experiment over Arid Region of Northwest China', the bulk momentum transfer coefficient Cd and bulk sensible heat transfer coefficient Ch between surface and atmosphere over desert and Gobi in the arid region are determined according to three different methods. The result shows that, though these bulk transfer coefficients are different, they are in the same order. Especially, the means of Cd and Ch are close. Moreover, through analyzing the wind direction, the interference of the building near the observational station with the data is eliminated. From this, the relation between the bulk transfer coefficients and the bulk Richardson number and the range of the typical values of the bulk transfer coefficients over desert and Gobi in the typical arid region are obtained.
