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151.
索俊锋 《测绘与空间地理信息》2012,35(4):16-19
从生产实践对土木工程专业人才的测量能力的要求出发,对工程测量实践教学内容、教学方法、实践体系、评价体系进行了改革与探索,教学中既有效继承传统测量方法又重视现代测量技术的应用,致力于提高土木大类工程测量教学质量和培养合格的应用型人才. 相似文献
152.
地理国情监测是动态掌握自然资源分布、生态环境变化、社会可持续发展及科学决策的重要手段。本文综合介绍黑龙江省地理国(省)情监测的现有基础,列举了已有具体实践,并结合黑龙江省的工作重点及基础测绘现状提出黑龙江省地理国(省)情监测方向,阐述了主要技术手段及监测成果与发布。 相似文献
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154.
针对“地形测量实习”课程考核存在的问题,构建了“过程化、定量化”的考核体系,以考核学生的实践动手能力为重点优化考核内容,形成了贯穿于实践教学全过程的、多样化的考核方法,制定了定量化的成绩评定标准,课程考核由终结性评价向形成性评价转变。该考核体系引导学生由被动学习转变为主动学习,能够切实加强学生实践能力培养,进而完善测绘学科在工程教育专业认证环境下的人才培养模式。 相似文献
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157.
David J. Wachal Kenneth E. Banks Paul F. Hudak R. Daren Harmel 《Environmental Geology》2009,56(8):1615-1627
Sediment yields from natural gas well sites in Denton County, TX, USA can be substantial and warrant consideration of appropriate
erosion and sediment control best management practices (BMPs). Version 2 of the revised universal soil loss equation (RUSLE
2.0) was used to predict sediment yields and evaluate the efficiency of BMPs for multiple combinations of different land surface
conditions (soil erodibility and slope) commonly found at gas well sites in the area. Annual average sediment yield predictions
from unprotected site conditions ranged from 12.1 to 134.5 tonnes per hectare per year (t/ha/yr). Sediment yield predictions
for 1, 2, 5, and 10-year design storms ranged from 8.1 to 20.6 t/ha. When site conditions were modeled with BMPs, predicted
sediment yields were 52–93% less. A comparison of modeled efficiency values to a review of laboratory and field data suggests
that modeled (theoretical) sediment yield results with BMPs are likely best case scenarios. This study also evaluated BMPs
in the context of site management goals and implementation cost, demonstrating a practical approach for the application of
RUSLE 2.0 for managing soil loss and understanding the importance of selecting appropriate site-specific BMPs for disturbed
site conditions. 相似文献
158.
结合当前正在全党开展的深入学习实践科学发展观活动和科技性企业特点,从党委书记“第一责任人”的角度积极思考,提出并探讨了扎实有效开展学习实践活动需要辩证认识和把握的“提高认识”与“搞好活动”、“注重实践”与“理论武装”、“加强领导”与“做好表率”等三个关系问题。 相似文献
159.
160.
Collapse and/or severe damage to pile-supported structures are still observed in liquefiable soils after most major earthquakes.
Poor performance of pile foundations remains a great concern to the earthquake engineering community. This review paper compares
and contrasts the two plausible theories on pile failure in liquefiable soils. The well established theory of pile failure
is based on a flexural mechanism; where the lateral loads on the pile (due to inertia and/or lateral spreading) induce bending
failure. This theory is well researched in the recent past and assumes that piles are laterally loaded beams. A more recent
theory based on buckling instability treats the piles as laterally unsupported slender columns in liquefiable soils and investigates
the buckling instability (bifurcation). The objective of this paper is to investigate the implications to practical pile foundation
design that flow from both these theories. Provisions for design made by major international codes of practice for pile design
including the Japanese Highway Code (JRA) will be considered. The necessity for such codes to consider alternative forms of
failure mechanisms such as the buckling instability of piles in liquefied ground will be discussed.
S. Bhattacharya–Previously Departmental Lecturer in Engineering Science, University of Oxford, UK and Fellow of Somerville
College, Oxford. S. P. G. Madabhushi–Fellow of Girton College, Cambridge. 相似文献