1) degraded red sandtone soil
退化红砂土
2) red sand soil
红砂土
1.
Study on the dry shrinking property of stabilized red sand soil soft aggregate pavement base;
稳定红砂土软质集料基层的干缩特性研究
2.
Effects of application of sulpher fertilizer on the yields of sesame and rapeseed on a red sand soil in west Zhejiang:;
浙西红砂土施用硫肥对芝麻和油菜的增产效应
3) red sand silty clay reinforced with geosynthetics
加筋红砂岩风化土
4) degraded red soil
退化红壤
1.
Community structure of collembolan in degraded red soil under different restoration vegetation types;
退化红壤不同植被恢复类型的土壤弹尾虫群落结构
2.
Seasonal variation of light fraction organic matter in degraded red soil after vegetation restoration;
退化红壤植被恢复后土壤轻组有机质的季节动态
3.
Effects of vegetation restoration on water stability and organic carbon distribution in aggregates of degraded red soil in subtropics of China;
植被恢复对退化红壤团聚体稳定性及碳分布的影响
5) red soil degradation
红壤退化
1.
The soil physical, chemical, and biological properties on red soil of six different erosion degree experimental plots were conducted by using the Main Component Analysis Method to evaluate red soil degradation.
对 6个不同土地利用方式条件下不同侵蚀程度的红壤退化试验小区土壤的物理、化学和生物学性质进行了测定 ,应用主成分分析法对 6个试验小区的红壤肥力退化进行排序和评价。
6) eutric arenosols
饱和红砂土
补充资料：砂土液化
| 砂土液化 Sand Liquefaction 饱水的疏松粉、细砂土在振动作用下突然破坏而呈现液态的现象。其机制是饱和的疏松粉、细砂土体在振动作用下有颗粒移动和变密的趋势，对应力的承受从砂土骨架转向水，由于粉和细砂土的渗透力不良，孔隙水压力会急剧增大，当孔隙水压力大到总应力值时，有效应力就降到0，颗粒悬浮在水中，砂土体即发生液化。砂土液化后，孔隙水在超孔隙水压力下自下向上运动。如果砂土层上部没有渗透性更差的覆盖层，地下水即大面积溢于地表；如果砂土层上部有渗透性更弱的粘性土层，当超孔隙水压力超过盖层强度，地下水就会携带砂粒冲破盖层或沿盖层裂隙喷出地表，产生喷水冒砂现象。地震、爆炸、机械振动等都可以引起砂土液化现象，尤其是地震引起的范围广、危害性更大。砂土液化的防治主要从预防砂土液化的发生和防止或减轻建筑物不均匀沉陷两方面入手。包括合理选择场地；采取振冲、夯实、爆炸、挤密桩等措施，提高砂土密度；排水降低砂土孔隙水压力；换土，板桩围封，以及采用整体性较好的筏基、深桩基等方法。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条