强夯法加固煤矸石地基动应力模型试验研究OA北大核心CSCDCSTPCD
Model tests on dynamic stress in colliery wastes improved by dynamic compaction
通过强夯法加固煤矸石地基物理模型试验，用DH5939动态应变仪完整地记录了强夯每一击作用下煤矸石地基中的动应力，系统地研究了不同夯击能和夯击次数作用下不同深度煤矸石地基动应力的分布特征及其衰减规律。结果表明，在强夯冲击荷载作用下，动应力为单一的波峰，沿夯锤不同深度的动应力达到峰值具有明显的时滞性。强夯动应力在水平方向的衰减速度比竖直方向快，竖直方向的影响范围比平方向大。在相同的夯击能作用下，动应力峰值随深度衰减很快，近似呈负幂指数规律衰减。另外，…查看全部>>
Through physical model tests on colliery wastes improved by dynamic compaction, the dynamic strain gauge DH5939 is used to record the induced dynamic stress. The distribution and rules of the dynamic stress at different depths under different impact loadings and numbers of dynamic compaction are studied. It is shown that the dynamic stress has a single peak, and it has a significant decay to reach the peak under the impact loadings along the depth of the ham…查看全部>>
张清峰;王东权
江南大学环境与土木工程学院,江苏无锡214122中国矿业大学建筑工程学院,江苏徐州221008
建筑与水利
强夯法煤矸石地基动应力模型试验
dynamic compactioncolliery wastedynamic stressmodel test
《岩土工程学报》 2012 (6)
1142-1147,6
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