风化与土(外文翻译).rar
风化与土(外文翻译),包含中文翻译和英文原文,内容详细完整,建议下载参考!中文:3975字英文:15300字符地表状况地层剖面最上面数米深处一般包括:土、坡积土和风化岩石。其工程性质不同于最底层的基岩。土 :是矿物碎屑和植物风化后的混合体,通常小于1米厚,通常被分为上层腐殖质和富含粘土的下层土。 风 化:岩石、坡积土与空...
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内容介绍
原文档由会员 xiaowei 发布
风化与土(外文翻译)
包含中文翻译和英文原文,内容详细完整,建议下载参考!
中文: 3975字
英文: 15300字符
地表状况
地层剖面最上面数米深处一般包括:土、坡积土和风化岩石。其工程性质不同于最底层的基岩。
土 :是矿物碎屑和植物风化后的混合体,通常小于1米厚,通常被分为上层腐殖质和富含粘土的下层土。
风 化:岩石、坡积土与空气和水接触后,被自然侵蚀和分解的过程。风化深度一般小于10米。
坡积土:泥沙经过运输、沉积在基岩表面上;大多数非固结粘土、沙和粗碎屑碎片;一般属于第四纪,因时间太短不能固结;厚度在0到大于50米之间。
崩积层:边坡碎片,移动的滑坡体主要由重力引起;因此输送泥沙的程度:滑移体>崩积层>土,包括由蠕变和片状冲积层产生的碎片,岩屑堆。丧失植被和地表水增加产生的片状冲积层。
基覆面:被埋坡积土与岩石的界面;普遍存在于软土、坡积土和坚硬岩石之间的显著边界;不容易在风化岩石深剖面作界定;若在坡积土沉积之前形成的侵蚀面,形成的地形可能跟现在的表面完全无关 ......
weathering and soil
GROUND CONDITIONS
Top few metres of the ground profile generally consist of soil ,drift and weathered rock,withengineering properties very different from those of the underlying bedrock.
Soil: mixture of weathered mineral debris and plant material,
usually<1 m thick;many divide into plant-rich topsoil and clay-rich subsoil.
Weathering:the natural decay and break down of rock or drift in contact with air and water;generally < 10m deep.
Drift transported,superficial sediment deposited on top of the bedrock; mostly unconsolidated clay,sand and coarser clastic debris; generally Quaternary age ,
hence too yang to be consolidated;varies in thickness from 0 to >50m.
Colluvium:slope debris,
moved downslope largely by gravity alone;extent of sediment transport therefore drift>colluvium>soil;
includes debris from creep and sheetwash,also head and
scree.Sheetwash by surface water increases greatly with loss of vegetation ......
包含中文翻译和英文原文,内容详细完整,建议下载参考!
中文: 3975字
英文: 15300字符
地表状况
地层剖面最上面数米深处一般包括:土、坡积土和风化岩石。其工程性质不同于最底层的基岩。
土 :是矿物碎屑和植物风化后的混合体,通常小于1米厚,通常被分为上层腐殖质和富含粘土的下层土。
风 化:岩石、坡积土与空气和水接触后,被自然侵蚀和分解的过程。风化深度一般小于10米。
坡积土:泥沙经过运输、沉积在基岩表面上;大多数非固结粘土、沙和粗碎屑碎片;一般属于第四纪,因时间太短不能固结;厚度在0到大于50米之间。
崩积层:边坡碎片,移动的滑坡体主要由重力引起;因此输送泥沙的程度:滑移体>崩积层>土,包括由蠕变和片状冲积层产生的碎片,岩屑堆。丧失植被和地表水增加产生的片状冲积层。
基覆面:被埋坡积土与岩石的界面;普遍存在于软土、坡积土和坚硬岩石之间的显著边界;不容易在风化岩石深剖面作界定;若在坡积土沉积之前形成的侵蚀面,形成的地形可能跟现在的表面完全无关 ......
weathering and soil
GROUND CONDITIONS
Top few metres of the ground profile generally consist of soil ,drift and weathered rock,withengineering properties very different from those of the underlying bedrock.
Soil: mixture of weathered mineral debris and plant material,
usually<1 m thick;many divide into plant-rich topsoil and clay-rich subsoil.
Weathering:the natural decay and break down of rock or drift in contact with air and water;generally < 10m deep.
Drift transported,superficial sediment deposited on top of the bedrock; mostly unconsolidated clay,sand and coarser clastic debris; generally Quaternary age ,
hence too yang to be consolidated;varies in thickness from 0 to >50m.
Colluvium:slope debris,
moved downslope largely by gravity alone;extent of sediment transport therefore drift>colluvium>soil;
includes debris from creep and sheetwash,also head and
scree.Sheetwash by surface water increases greatly with loss of vegetation ......