利用该回归模型进行抗压强度的计算，可以为建立油井出砂的理论预测模式提供较为准确的岩石抗压强度数据。
The computed rock compressive strength with the established regression model can support exact compressive strength for the establishing of sand prediction model for oil well.
本文采用地层倾角方位频率图和蓝模式矢量方向研究古水流方向和沉积砂体延伸方向和沉积砂体的相带变化特征。
The dip frequency plot and vectograph of blue mode were used to study the paleocurrent, the extension o.
最后研究了成都地区砂卵石深基坑的破坏模式，以及最适宜成都地区砂卵石深基坑的支护形式。
At last. the failure pattern of sand-cobble deep excavation in Chengdu is researched, and then, the suitable retaining structure is given.
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