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This paper is concerned with the stability analysis of reinforced slopes. A new approach based on the limit equilibrium principle is proposed to evaluate the stability of the reinforced slopes. The effect of reinforcement is modeled as an equivalent restoring force acting the bottom of the slice and added into the general limit equilibrium (GLE) method. The equations of force and moment equilibrium...
The asymptotic behavior of soil under constant strain increment ratio is a topic of current research interest. In this paper, the effect of anisotropy on the asymptotic behavior of sand is investigated. A new device is developed for testing soil samples along paths with constant strain increment ratio. This triaxial test apparatus with hydraulic loading systems is particularly suitable to study the...
In order to effectively improve the heat utilization of solar energy, by the convection heat transfer field synergy theory, this paper studies a solar wall air heating system, analysis the flow velocity field and temperature field of the solar wall channel, and calculation the variation rules of temperature gradient direction within the channel and air flow velocity (speed ratio) with the field synergy...
In this paper numerical simulated the thermal properties of solar air collector. With the ray-tracing solar load model provided by Fluent software, the solar radiation heat flux can be solve using radiation heat transfer equation, and then consider loading radiation heat into the source terms of the energy equation. The thermal effects rules of air flow and heat transfer in the collector box, temperature...
Of a placement at the roof of a building using solar collectors to heating the air thermal properties were studied. Introduction a unit of the air flowing through the solar radiation collector temperature rise that characterized the parameters of a combination of collector, through measuring the thermal performance of the relevant factors of collector, such as outlet temperature, export air speed...
The field-synergy theory has been applied for convective heat transfer analysis of fluid flow inside solar wall, the factors affected convective heat transfer was discussed. The results indicate that increasing the gradient of heat flux along the vertical direction of solar wall-, increasing the ratio of vertical velocity u to horizontal velocity v(u/v>5) ^ and changing the direction of temperature...
The transmission property of power line channel has been analyzed, and power line spread spectrum communication has been expounded in the paper. We study a complementary network system which works simultaneously two communication systems, wireless (IEEE 802.15.4 Zigbee) and wired (Power line carrier communication; PLC) communication. Our analyze results show that the communication result of the table...
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