An ellipticparaboloid is proposed as the failure surface for concrete under multiaxial Stresses.
本文用椭圆抛物面作为混凝土三向应力时的强度破坏面。
2
Identifying the basic properties of mining fissure ellipticparaboloid zone and gas delivery law governing goaf represents an effective measure to control gas.
研究采动裂隙椭抛带的基本性质及其采空区瓦斯运移的规律,可以采取有效措施进行瓦斯治理。
3
After raining, a dynamic EllipticParaboloid Zone distribution would be formed if the bed-separated fissures and broken fissures of the overlying stratum were connected.