In this thesis, Large-scale triaxial apparatus is used to carry out static and cyclic loading on loose sand. Accordingly, the creep behavior of sand under cyclic loading was analyzed.
首先,采用大尺寸三轴仪,对正常固结下的松散砂土进行了静载和偏应力循环加载试验,分析了松散砂土的应力-应变特征,明确了松散砂土在循环荷载作用下的蠕变规律。
参考来源 - 松砂在循环荷载作用下力学特性的试验研究及离散元模拟Gudao oilfield is a loose sand oil reservoir deposited by positive-rhythm fluvial facies with high permeability, high viscosity and high saturation. Ng 3-4 sand is deposited by meandering river, and Ng 5-6 sand is deposited by braid river.
孤岛油田是一个高渗透、高粘度、高饱和的河流相正韵律沉积的疏松砂岩油藏,Ng3-4砂层为曲流河沉积,Ng5-6砂层为辫状河沉积。
参考来源 - 正韵律厚油层剩余油分布模式及水平井挖潜——以孤岛油田中一区Ng5~3层为例·2,447,543篇论文数据,部分数据来源于NoteExpress
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