岩土工程学报2012，Vol.34Issue(9)：1691-1694,4.
加筋地基土压力测试与机理分析
Measurement of soil pressure in geobelt-reinforced foundation and analysis of reinforcement mechanism
摘要
Abstract
After geobelt is included into soil to provide lateral confinement through geobelt-soil interface friction under loading, the modulus ratio of the reinforced cushion to the underlying soft soil stratum increases, the stress distribution capacity of reinforced cushion is strengthened, the bearing capacity of soft soil under reinforced cushion can effectively function, and the foundation settlement decreases. The measurement of soil pressure under reinforced cushion is carried out based on different reinforcement parameters. The test results show that the soil pressure under reinforced cushion is not even. The stress under reinforced cushion concentrates on the edge of foundation, and the stress in the center is less than that at the foundation boundary. The reinforced foundation strength and deformation are relevant with the reinforcement parameters. The stress diffusion capacity of reinforced cushion is analyzed by stress diffusion coefficient under different reinforcement parameters. The reinforcement mechanism can be described as follows： the interface frictions function between the geobelt and the soil, the friction force direction continuously changes, and the stress spreads to the both sides. Based on the practical conditions of the project, the design diffusion angles are put forward for Taiyuan city.关键词
土工带加筋地基/现场原位试验/垫层底土压力测量/加筋机理Key words
geobelt-reinforced foundation/in-situ test/measurement of soil pressure under cushion/reinforcement mechanism分类
建筑与水利引用本文复制引用
黄仙枝..加筋地基土压力测试与机理分析[J].岩土工程学报,2012,34(9):1691-1694,4.基金项目
山西省留学基金项目 （）
山西省高校科技开发项目 （）
