天生桥一级水电站厂区岩质高边坡稳定性三维弹塑性有限元数值分析

天生桥一级水电站厂区岩质高边坡中存在影响边坡稳定的断层、顺坡向裂隙及褶皱层面。基于三维弹塑性有限元分析，采用强度储备法研究了边坡在多种工况下的稳定性及失稳破坏机理，研究成果已供工程参考应用。该边坡已经历了施工及几年汛期暴雨的考险，边坡稳定。工程实践表明：研究成果可靠，强度储备法是岩质高边坡稳定性分析的有效方法。     

土坝机织模袋混凝土护坡质量控制与检测

大洼三角洲平原水库土坝护坡工程采用机织模袭混凝土新技术。质量表明，机织模袋混凝土施工技术满足设计要求，工程质量达到了标准。     

构皮滩水垫塘边墙衬砌块的受力分析

以瞬变流模型和随机信号理论为基础，在乌江构皮滩模型的水垫塘边墙上布置了五个测点，运用上举力量测仪量测板块所受的上举力．实验前对仪器进行了动态标定．量测了校核、设计、正常高水位下表孔单泄、表中孔联合泄洪共６种工况下衬砌块上的脉动上举力，得出相应的两个回归经验公式，为边墙衬砌块的设计提供了科学依据．     

SIMPLE INSTABILITY CRITERION FOR A CLASS OF SINGULAR SYSTEMS WITH MULTIPLE TIME DELAYS

In this paper, the instability for a class of singular systems with discrete and distributed time delays is investigated. Simple instability criterion, which is a delay‐dependent criterion, is derived to guarantee the instability of such systems. Finally, a numerical example is given to illustrate the use of the main result.     

3D Model and Estimation of Fiber Interaction Effects During Internal Instability in Non-Linear Composites

A 3D model and an estimation of fiber interaction effects during internal instability n non-linear composites are presented Results are based on a micrornechanies solution for a series of fibers embedded in an infinite non-linear incompressible matrix. An ideal bonding between the fibers and the matrix is assumed. Comparison with a limiting case in which the distance bet’ween the neighboring fibers tends to infinity is carried out. It shows the significance of the fiber interaction effects in the considered problem.     

梧州市河西防洪堤岸坡稳定探讨

针对该防洪堤工程的地形地质条件，着重讨论了影响岸坡稳定的因素，提出了堤防设计应注意的问题。     

三峡工程永久船闸高边坡卸荷松动带变形特点

岩质人工高边坡的形成常常引起稳定和变形等方面的工程问题。为了探讨裂隙岩体开挖边坡的变形特点，以三峡工程永久船闸高边坡的变形监测和地质研究成果为例，根据变形位移过程并比照开挖过程分析，认为整个边坡岩体卸荷过程须经历预变形阶段、剧变形阶段、渐变形阶段和后变形阶段等４个阶段。开挖边坡卸荷岩体可为３个带：表层松动带、卸荷变形带以及应力调整带。并对一些与边坡变形有关的因素，如结构面的产状、密度和规模，以及加固效果等也进行了讨论。     

水利水电工程边坡的工程地质分类（下）

首先按变形特征对变形边坡的分类划分为滑动、蠕动、张裂、崩塌、坍滑和剥落共６类，再结合岩性、结构和变形机理划分出１７个亚类。对各类和各亚类变形边坡的工程地质特征、野外识别方法、变形破坏机理、稳定性评价和治理原则作了简要的总结。文后附变形边坡分类表，对已发生变形边坡的勘察计有重要参考意义。全文分上、中、下三部分。     

预应力锚索在石窟文物保护中的应用

结合甘肃镇原石崆寺岩体保护的设计方案进行总结,提出在文物保护中采用最佳的岩土工程实施方案,做到遵循＂不改变文物现状＂原则,使中华民族的珍贵文化遗产得以有效保护,尽可能地延长文物保存期。     

Are Trends in Work and Health Conditions Interrelated? A Study of Swedish Hospital Employees in the 1990s.

[Correction Notice: An erratum for this article was reported in Vol 14(1) of Journal of Occupational Health Psychology (see record 2008-19186-009). This particular study was based upon a unique database (the Springlife database), with repeated questionnaire self-reports from hospital staff in the ?rebro Regional Hospital in Sweden regarding work environment and mental health in the years 1994, 1995, 1997, 1999, and 2001. The Springlife database was referred to in the text and references of the article noted above, but it should have been more clearly acknowledged. Herewith the authors want to make this late acknowledgement. The database actually started in the fall of 1993 with the regional hospital's physicians and continued with all hospital staff during the spring 1994.] Swedish hospital personnel were followed over an 8-year period, characterized by staff redundancies and restructuring processes. Self-rated and administrative data sets from 1994 to 2001 allowed for studying long-term consequences of organizational instability for staff health and work conditions. The aim was to identify, on a work-unit level, trends in work and health conditions and their interdependence. Regression analysis showed a downward trend in mental health and an upward trend in long-term sick leave. Increasing trends of work demands were accompanied by deteriorating mental health, and decreasing time to plan work showed the strongest association with increasing long-term sick leave. Job satisfaction and support were decreasing. A stable short-term sick leave rate over years related to lack of support. (PsycINFO Database Record (c) 2010 APA, all rights reserved)