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1·With the increase of the stress ratio r, the threshold decreased.

随着应力比的增加，门槛值下降。

2·Gravel pile; Composite foundation; Static load test; Pile-soil stress ratio.

碎石桩；复合地基；静载荷实验；桩土应力比。

3·The influence of consolidation stress ratio on damping ratio is not distinct.

但固结应力比与有效围压应力对阻尼比之影响则较不明显。

4·With the increase of cyclic stress ratio, the pore water pressure rate increases.

随着循环应力比的增加，孔压率增加。

5·Main effect factors on stress ratio between piles and soil are described in more detail.

阐明影响桩士应力比的主要因素。

6·The effects of the stress ratio in the cyclic loading and the environment medium were studied.

同时研究了循环加载中的应力比以及环境介质对于疲劳裂纹扩展的影响。

7·We get valuable results about the effect of the stress ratio and residual stress on fatigue crack growth.

在应力比，残余应力对疲劳裂纹扩展的影响方面获得了有价值的成果。

8·The fully stressed design criterion is approximate and the stress ratio algorithm must be used repeatedly.

满应力设计准则是近似的，同时必须循环运用应力比算法。

9·The effects of thickness, temperature and stress ratio on fatigue crack growth behavior were studied separately.

分别研究了厚度、温度、应力比等因素对直接时效GH 4169高温合金疲劳裂纹扩展性能的影响。

10·The stress ratio between pile and soil of the said pile and stress transmission property of pile are also discussed.

文中还研究了粉煤灰桩的桩土应力比及桩身应力传递特性。