| 1. | Degree of rock weathering 岩石风化程度 |
| 2. | ( 2 ) cia can not reflect the degree of chemical weathering of black shales precisely , and a - cn - k diagram can not reflect chemical weathering processes of black shales completely ( 2 ) cia值并不能灵敏地反映黑色页岩的化学风化程度, a - cn - k三角图解并不能完整地反映黑色页岩化学风化的整个过程。 |
| 3. | A combined effect of climate , relief , integrated lithology , vegetation and cultivated area seemed to explain the variability of modern chemical weathering and mechanical denudation rates 相比而言,西江和北江流域岩石的整体化学风化进程、 2大类岩性的化学风化程度均较之长江、黄河流域强烈的多。 |
| 4. | There is a weak negative correlation between ree concentrations and ph values in these groundwater samples . weathering degree and ree concentrations of the parent rocks are the main factors affecting the concentration of ree in the groundwater 发现风化壳地下水中的稀土元素含量与水的ph值呈弱的负相关关系,并且受母岩风化程度及母岩稀土含量的影响。 |
| 5. | The results show no obvious difference in the contents of major components in the different xiashu loess profiles , but some difference in the contents of readily leaching elements of loess and the chemical weathering intensity of loess among the different xiashu loess profiles 结果表明不同下蜀土剖面在主要组分含量上差异不明显,但在易淋溶元素含量和经历的化学风化程度方面存在一定差异。 |
| 6. | The sediments in the core are weakly weathered , lightly abraded and bad sorted , they have the same feature as river sediment , which is derived from near source and did not experience seriously transformation by ocean . due to the rate of insufficient sediment supply the sedimentation rate is low 碎屑矿物风化程度低,磨蚀不显著,分选较差,河流砂特征明显,沉积物来自于近源,由河流输送入海,海洋改造不十分强烈,由于物源供应不足,沉积速率较低。 |
| 7. | A new approach to assess the weathering degrees of rocks by the variation of rayleigh wave velocities is put forward in this paper , and the weathering degrees of the marble plate revealed by this method is exactly coincided with the actual weathering situation of this plate 在第四部分中通过把超声层析和瑞雷波勘探方法应用于故宫玉石栏板风化程度评价中,对检测的精度和准确性做了一定的研究,提出了由利用瑞雷波速变化评价岩石风化程度的新方法,结果比较理想。 |
| 8. | This paper reports the analytical results of major chemical components of 94 loess samples from the xiashu loess profile in the middle and lower reaches of the changjiang river , the major component contents and the weathering intensity of xiashu loess were compared with those of luochuan loess from northwest china 摘要根据长江中下游三个下蜀土剖面94个样品主要组分元素化学成分的分析结果,结合西北洛川黄土数据资料进行了下蜀土剖面主要元素成分含量和风化程度的分析对比。 |
| 9. | The criterion to judge the relaxation depth of rock mass of excavation slope is defined by analyzing data of sonic wave speed and field investigation , and the distributing law of various weathered degree fossil weathered rock on slope of are educed . the mechanics parameters of relaxed rock mass are studied by using relational expression between mechanics parameters and value of sonic wave speed , which provide convenience for the study of mechanics parameters of rock mass in different state 在此基础上,利用现场调查和实测波速资料,制定了边坡开挖岩体松弛带深度的判定标准,从而分析得出了各风化程度古风化岩边坡的松弛带分布规律,并采用波速与岩体力学参数的相关式对松弛带岩体的力学参数进行了研究,为研究不同状态下岩体的工程特性提供了方便。 |
| 10. | Abstract : compared with soil destroyed pattern of vertical force and its controlled factor of bearing capacity , it is concluded that pile capacity and its tip resistence have some difference when soil with the same physical mecanic property is used as natural foundation and pile tip resistent layer . whereas the middle weathering rod stratum hasn ' t this property , that is to say it has the same bearing capacity and pile tip resistence 文摘:通过竖向荷载下土(岩)体的破坏模式及其承载能力控制因素的比较,论述了物理力学性能相同的土层作为浅基础的天然地基与桩端持力层时,承载力值与桩端阻力值应存在一定的差异;而中(微)风化程度的同一岩层作为天然地基与桩端持力层时,不具有这方面的差异性,承载力值与桩端阻力值应该相等。 |