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In this paper, the author investigates root's soil mechanics' mechanism and influencing factors of a typical soil reinforcing plant- Hippophae rhamnoides Linn. in the area that has been destroyed by wind and water. This investigation has been done from two aspects: shear strength of root-soil composite and friction characteristic of root-soil interface. The results show that when the root diameter...
Through a series of direct shear tests on the interfaces between soil-soil and soil-roots of Artemisia sphaerocephala and Sabina valgaris, friction properties of the interface were examined, and the influence of normal stress, dry density of soil, water content of soil on friction properties were analyzed. The results showed that the shear relationship of interface between soil-roots of Artemisia...
Three types of dehydrated palygorskites are prepared, and XD-172 silane coupling agents are used to modify dehydrated palygorskite by the drop height method employed to evaluate the effects of surface modification. The optimal modification process parameters are obtained by analyzing the influences of modification agents quality, modification temperature and modification time on drop height, so that...
Based on the review of researches on the vibration and noise related to automobile brake, a four degrees of freedom nonlinear dynamics model of brake disk and pads is established, the stability of vibration system at the equilibrium points is analyzed. Finally the numerical method is taken to study the impacts of brake pressure, shape parameter and the brake disk's initial velocity on the vibration...
In this paper, we investigate the influence on shear strength of the roots of four typical plants which can fix the soil in coal mining subsidence area by direct shear tests ,and the shear strength of the root soil composite .The results indicate that with the same root diameter (1.25 mm) , Sabina valgsris Ant., Salix psammophila, Caragannmicrophylla Lam. Artemisia sphaerocephala Krasch are more intensive...
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