Low Rang Full Ram Impact Load In The Role Of Red Sandstone Soil Effect And Energy Consumption Patterns

Our country south of the Yangtze River are widely distributed in red sandstone,which is used in a large number of excavated fill foundation. Commonly used in the reinforcement of such impact load foundation, which is characterized by a simple,efficient and cheap. This article takes Gannan red sand rock, use Compactor conduct action effects and energy consumption in the red sand and rock in passing laws indoor impact test, analyze the impact of lightweight full ram, get the following conclusions:(1)In full ram impact loads, different thickness of soil layer in the growth of red sandstone soil cohesive force should be greater than the increase of Angle of internal friction, great cohesive force and Angle of internal friction of soil layer thickness of growth is greater than small cohesive force and Angle of internal friction of soil layer thickness.(2)In the full impact of the role of ram, red sandstone fill different thickness greater than the growth rate of cohesion and internal friction angle, the large thickness of soil growth rate is also large.(3)Full ram impact energy mainly in the vertical direction to pass, the number of energy transfer increases as the thickness of the soil samples.(4)Comparative soil density static load pressure- energy curve, soil samples with the same thickness, the energy absorbed by the soil increases the total energy increases, the total rate of energy absorption of impact energy between 294 N · m to1470 N · m increased energy and increased with the shock. The total impact energy with less than 1470 N · m while the energy absorbed by the soil increases soil thickness increases, the absorption rate of energy also increases. The actual energy used to reinforce soil only part of the total energy of the impact, the more energy the greater the total energy absorbed by the soil, but the soil will not absorb unlimited energy, under the experimental conditions when the full impact load rammed earth absorbs energy limit is about 69% of the total energy.This paper studies the impact load reinforced foundation design and construction of a certain theoretical and practical significance.