【作者】 欧孝夺； 吴恒； 周东； 秦伟；

【Author】 OU Xiao-duo WU Heng ZHOU Dong College of Civil Engineering and Architecture,Guangxi Univ,Nanning,Guangxi 530004,China; QIN Wei Dept of Equipment,Guangxi Univ,Nanning,Guangxi 530004,China

【机构】 广西大学土木建筑工程学院； 广西大学实验设备处；

【摘要】 设计了适用于环境岩土工程研究的环境发生器,该设备具有模拟自然环境的功能,温度范围为-30～+80℃,湿度模拟范围为50%～95%RH,降雨强度为20～100 mm/h,试验箱体积达254 m~3,箱底设有(5.0 m×3.0 m×3.0 m)试验坑.运用该环境发生器进行模拟研究,通过膨胀土边坡模型内温度试验研究表明,在90%RH湿度条件下,对膨胀土边坡内温度的影响深度为0.8 m,土体表面0.5 m范围内温度变化幅度较大,坡面处的温度变化幅度最大.更多还原

【Abstract】 An environmental generator which is suitable for the research of environmental geotechnical engi- neering was designed.This equipment can simulate natural environment.The simulative temperature range is- 30～+80℃.The simulative humidity range is 50%～95% RH.The range of rainfall intensity is 20～100 mm/ h.The volume of test chamber is 254 m~3,and a test pit(5.0m×3.0m×3.0m)was set under the bottom of the chamber.Experimentations were done in this equipment,By the temperature test in the expansive soil slope model,The results show that under the Condition of 90% RH humidity,the influence depth to the temperature in the expansive soil slope is 0.8 m,the temperature changed in a wide range within the depth of 0.5 m to the surface of soil,and the temperature changed in the widest range on the surface of the soil.更多还原