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geological survey indicates
相关语句
  地质调查研究
     The 1:50000 regional geological survey indicates that the original Hongliuhe Formation in the Beishan area is large in scale and shows marked differences in lithology and lithofacies.
     经1∶5万区域地质调查研究,北山地区原红柳河组规模巨大,岩性、岩相差异明显,按岩石地层划分原则,应进一步分组。
短句来源
  相似匹配句对
     SURVEY
     西昌概况
短句来源
     On Geological Survey of Regional Environment
     论区域环境地质调查研究
短句来源
     Mining survey and geological information system
     煤矿地质测量信息系统(MSGIS2.5)
短句来源
     Market Survey
     谁能成为京城乳市老大——北京液体牛奶市场调查
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     The study indicates:
     研究表明:
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The resutes of ecological environment-geological survey indicated that the formation and distribution of each type soil are closely related to the condition of tapography, landforms and geological structure. Under the same degree of erosion, the forming soil mother rock decides the abundant degree of plant nutrition elements in soil. The mother rock and tiny tapography and landforms influence the region distribution and plant nutrition element assemblage of soil. The washed away intensity of soil...

The resutes of ecological environment-geological survey indicated that the formation and distribution of each type soil are closely related to the condition of tapography, landforms and geological structure. Under the same degree of erosion, the forming soil mother rock decides the abundant degree of plant nutrition elements in soil. The mother rock and tiny tapography and landforms influence the region distribution and plant nutrition element assemblage of soil. The washed away intensity of soil plant nutrition elements and feature of soil degenercy are influenced by neotectonic movement. The different features of geological and agriculture ecology environment decided obstructive factors and bring under control countermove of low yield field.

根据生态环境地质调查结果表明 ,各类型土壤的形成及分布特征与地形地貌地质构造条件密切相关 ;在侵蚀度相同时 ,成土母质决定土壤植物营养元素的富集程度 ;母质与微地形地貌共同影响土壤营养元素组合的地域分布 ;新构造运动影响土壤植物营养元素的流失强度和土壤退化特征 ;不同的地质环境和农业生态特征决定低产田的障碍因素和治理对策

Baguashan tunnel, with the total length of 5km, is mainly located at the pebble gravel stratum. And more than half of it is under the groundwater level, thus the stability of the tunnel face at pebble gravel is significantly influenced by groundwater and it is necessary to understand the groundwater condition along the tunnel. Geological survey indicates that two thick impermeable stratunis with two groundwater levels are existed. Small change of groundwater level occurs with the variation of season at...

Baguashan tunnel, with the total length of 5km, is mainly located at the pebble gravel stratum. And more than half of it is under the groundwater level, thus the stability of the tunnel face at pebble gravel is significantly influenced by groundwater and it is necessary to understand the groundwater condition along the tunnel. Geological survey indicates that two thick impermeable stratunis with two groundwater levels are existed. Small change of groundwater level occurs with the variation of season at the upper layer and the other aquifer between the two impermeable stratums is saturated with pressure water. The natural groundwater level of Baguashan tunnel before construction and the change of groundwater level at shaft area after pumping by deep well are discussed by numerical method based on hydro-geological condition. The water flow and water pressure along the tunnel is available. Further more the influence to adjacent groundwater resource by tunnel excavation can be evaluated. In addition, the effect of the quantity of the wells for de-watering of longitudinal drainage and shaft drainage can be compared by numerical method and the design will be revised to reach construction convenience. Finally the reliability of numerical method can be proved by actual effect of de-watering is assessed.

八卦山隧道总长约5km,主要地质为卵砾石层,全线有一半以上之路段位于地下水位下,由于地下水对卵砾石层隧道开挖面之稳定影响至巨,因此,对于隧道沿线之地下水位情况须妥予掌握。依据地质调查显示,隧道段含有两层较厚之不透水层,研判具有两个地下水位,上方第一含水层之地下水位随季节变化略有升降,而两层不透水层间之另一含水层为一含水量充沛之压力水层。 本文将介绍施工中的八卦山隧道,利用已知水文地质架构,以数值模拟方法分别探讨隧道区域施工前的自然地下水位分布及竖井区域深抽水井抽水后地下水位的变化情况。自然地下水位模拟结果可提供研究该区域的水流方向及隧道沿线之水压分布情况;而藉由模拟深抽水井抽水后结果,评估竖井施工降水深水井所需数量,并初步评估施工对附近区域地下水资源可能之影响。另外,藉由数值模拟检讨比较竖井环向排水与纵向排水的功能性,并修正设计以达到施工的便利性。最后,经由实际施工中降水与排水成效,以验证数值模拟之可靠度。

The landforms and geological calamity are the important studying subjects for the environmental protection in Nihewan reserve zone. The geological survey indicates that loess platform, loess ridge and gully, and river valley are the major landform types developed in " Nihewan Strata and its overlapped layers, their shape and measurement characteristics reflect the current evolutional characteristic of fluvial landform in this area. The geological calamities, such as soil erosion, mudflow, landslide...

The landforms and geological calamity are the important studying subjects for the environmental protection in Nihewan reserve zone. The geological survey indicates that loess platform, loess ridge and gully, and river valley are the major landform types developed in " Nihewan Strata and its overlapped layers, their shape and measurement characteristics reflect the current evolutional characteristic of fluvial landform in this area. The geological calamities, such as soil erosion, mudflow, landslide and collapse, which caused by fluvial agent and geomorphic evolution, have endangered the reserved geological profile. The study indicates that the geological calamity in this area is caused by many factors, but the dominant factors are climate, vegetation and calamity activity. The current geological calamity can be controlled by the calibration of vegetation.

根据泥河湾保护区实地调查,黄土台地、黄土沟梁和河谷地貌是发育在“泥河湾层”及其覆地层上的主要地貌类型,其形态特征和形态测量反映了该区流水地貌的现代演化特征。伴随流水地质作用与地貌演化发生的水土流失、泥石流、崩塌和地面塌陷等地质灾害危及保护区的地层剖面。笔者认为该区域地质灾害是多种致灾因素造成的,其中的主导因素是气候、植被和人为因素,通过控制植被因素可以改变目前的地质环境状况。

 
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