抽水蓄能电站建设征地与移民安置模式探讨

建设征地与移民安置作为抽水蓄能电站建设前期的一项重要工作,很大程度上影响着项目的顺利推进。尽管抽水蓄能电站与常规大中型水利水电工程有着较大差异,但依据现行的法律法规和水电行业规程规范,抽水蓄能电站的建设征地移民同常规大中型水利水电工程的建设征地移民工作一样,需要经过严格甚至繁琐的流程。对抽水蓄能电站征地移民与一般建设项目征地拆迁过程中的优缺点进行了分析,建议国家相关部门加大对抽水蓄能移民征地政策的研究,完善相关制度,出台针对性举措,以简化移民流程、缩短项目工期。     

安徽响水涧抽水蓄能电站通过蓄水验收

2011年7月3日,受国家发展改革委的委托,以水电水利规划设计总院为主组成了安徽响水涧抽水蓄能电站工程蓄水验收委员会,在安徽省合肥市开展响水涧抽水蓄能电站工程蓄水验收工作。验收委员会听取了建设、设计单位关于工程蓄水验收工作情况、建设征地移民安置初步验收情况、     

抽水蓄能电站工程渣场征地移民实践与问题探讨

抽水蓄能电站工程较常规水电站工程开挖挖方量大,下水库往往利用已有水库或天然河道改造而成,且依水而居的老百姓较多,渣场规模又以特大型1级、大型2级居多,具有占地面积广、堆渣高度大、环境危害大的特点,这样弃渣场的征地移民周期及效果直接影响工程的进度。本文通过研究抽水蓄能电站的渣场类型与特点,利用工程实例探讨在建项目弃渣场征地移民安置过程中出现的问题,从征地移民安置的角度对渣场选址规划提出相关建议,以期为新时期抽水蓄能电站工程渣场的工程规划设计选址、移民规划设计及具体征地移民实施工作起到一定的参考作用。     

抽蓄电站移民安置阶段性验收工作探讨

文中针对抽水蓄能电站(以下简称抽蓄电站)建设征地移民安置工作特点,结合国家对建设征地移民安置关于阶段性验收要求,分析抽蓄电站建设征地移民安置阶段性验收工作安排,从设计角度结合案例分析,对抽蓄电站建设征地移民安置阶段性验收工作安排的改进提出了建议.     

惠州抽水蓄能电站建设征地与移民安置设计

惠州抽水蓄能电站是广东省第二座蓄能电站.文章就水库淹没、移民安置规划以及专项设施复建规划等设计内容做了介绍,目的在于揭示当时该项目的征地移民规划设计方案是可行的.     

广东阳江抽水蓄能电站征地移民生产安置方案研究

水电工程征地移民补偿机制是一种创新型的移民生产安置模式.在广东阳江抽水蓄能电站征地移民工作中,通过比较研究三种生产安置方案,优选出农业和非农相结合的移民安置方案,以保障移民的长远生计、降低征地移民难度.     

基于洛宁抽水蓄能电站新时代移民安置的实践与探索

抽水蓄能电站较一般常规水电项目,移民安置具有规模小的特点,常采用集中安置的方式,将原处于基础条件差的山区居民集镇式安置,以水电工程建设推动移民区的乡村振兴与发展,新时代能源发展的国家战略对移民安置过程实施提出新的挑战与要求。本文通过分析移民安置政策及管理体制发展历程,研究新时代水电工程移民安置规划及实施管理新特点,以洛宁抽水蓄能电站移民安置实践为例,总结其移民安置的成功经验与特色,探索新时代抽水蓄能电站工程系统化、精细化的移民安置工作方式,为其他抽水蓄能电站工程移民安置的管理体制与机制运行、规划设计的新理念、实施管理衔接性提供有益的参考与借鉴。     

引汉济渭工程建设征地特点及移民安置规划设计思路

文章以陕西省引汉济渭工程建设征地移民安置规划为基础,对建设征地移民安置规划设计工作过程进行了回顾,并对工程建设征地特点进行了分析归纳,同时对今后建设征地移民安置规划设计提出了具体建议,为同类工程建设征地移民安置规划设计工作提供了可借鉴的工作思路。     

宝泉抽水蓄能电站移民工作实践

宝泉抽水蓄能电站是国家重点工程建设项目,其征地移民安置工作备受关注。建设单位在各方支持下,经不懈努力取得了较好的成绩。结合工作实践,介绍了征地移民工作的指导思想和具体安置措施。     

项目管理在建设征地移民安置规划设计中的应用

建设征地移民安置是工程建设的重要组成部分,移民安置规划设计工作关系到工程顺利进行和建设征地区的社会稳定。为了优化建设征地移民安置规划设计工作的管理方法,结合移民安置工作的内容及特点,将项目管理的理论和方法应用于建设征地移民安置规划设计工作中。通过应用案例可以看出,项目管理方法在提高移民安置工作的费用、进度、质量管理水平及组织协调能力等方面发挥发了显著作用。     

地下厂房施工过程的三维非线性数值模拟分析

根据冗各电站地下厂房开挖支护的施工顺序,以隐式杆单元模拟锚杆,以壳单元模拟混凝土喷层,采用三维非线性有限元技术,对洞室群的开挖支护动态过程进行了模拟计算。通过三维非线性有限元计算分析得到:洞室群动态开挖过程中围岩应力变形的分布规律,围岩塑性区的发展规律,锚杆受力变化情况。计算结果表明:整个开挖过程中,洞周围岩位移变化规律正常,量值较小,塑性区主要分布在洞室周边,围岩稳定性较好;但在洞室交叉口处围岩的变形较大,出现较大范围的塑性区,在此基础上提出了支护措施优化方案,并对优化方案的效果进行了评价。     

Evaluation of freshwater mussel relocation as a conservation and management strategy

The relocation of unionacean mussels is commonly used as a conservation and management tool in large rivers and streams. Relocation has been used to recolonize areas where mussel populations have been eliminated by prior pollution events, to remove mussels from construction zones and to re-establish populations of endangered species. More recently, relocation has been used to protect native freshwater mussels from colonization by the exotic zebra mussel Dreissena polymorpha. We conducted a literature review of mussel relocations and evaluated their relative success as a conservation and management strategy. We found that 43% of all relocations were conducted because of construction projects that were forced to comply with the Endangered Species Act 1973 and that only 16% were monitored for five or more consecutive years. Most (43%) relocation projects were conducted from July to September, presumably a period when reproductive stress is relatively low for most species and the metabolic rate is sufficient for reburrowing in the substrate. The mortality of relocated mussels was unreported in 27% of projects; reported mortality varied widely among projects and species and was difficult to assess. The mean mortality of relocated mussels was 49% based on an average recovery rate of 43%. There is little guidance on the methods for relocation or for monitoring the subsequent long-term status of relocated mussels. Based on this evaluation, research is needed to develop criteria for selecting a suitable relocation site and to establish appropriate methods and guidelines for conducting relocation projects.     

基于模型试验的河床砂砾石层基本特性研究

为了经济可靠地确定深厚覆盖层的基本特性参数,以大渡河双江口水电站坝基河床砂砾石层基本特性研究为工程背景,进行大尺寸模型试验,研究河床砂砾石层的旁压模量和动探击数随密度、级配以及上覆压力的变化规律。根据室内模型试验结果,结合现场旁压试验及钻孔试验成果,推断出坝址区河床砂砾石相关层位的密度,并依此进行砂砾石室内力学试验,获得设计所需力学参数。研究成果可为深厚覆盖层基本特性测试提供新的方法。     

基于BP神经网络-马尔科夫链模型的隧道围岩位移预测

在隧道工程施工中,围岩位移预测起着很重要的作用。将BP神经网络-马尔科夫链模型引入到隧道围岩位移预测中来,通过对训练样本的学习,利用BP神经网络实现了对位移时间序列的滚动预测,同时得到了实测值与预测值的相对误差;在此基础上利用马尔科夫链对相对误差进行修正,有效地提高了预测结果的精度。并将该模型应用于某公路隧道拱顶下沉位移时序预测中,结果表明该模型具有精度高、科学可靠的特点,为隧道围岩变形的预测提供了新的途径。     

Short communication. Pipelines as a refuge for freshwater snails

In the lower River Murray, Australia, populations of gastropods have declined markedly over the past 40 years. Of the native fauna of about 18 species, only the ancylid Ferrissia petterdi remains common (but in patches), and another five species feature in sporadic local resurgences. Until recently the viviparid Notopala was thought to be extinct. The introduced physid Physa acuta is widespread, but in low numbers. The decline probably is associated with flow regulation, high turbidity and the introduction of common carp. Snail populations have persisted, however, in irrigation pipelines fed from the river, where they periodically cause blockages. This paper reports the discovery of the only known populaion of Notopala hanleyi in a pipeline where the inner wall accumulates microbial and other organic matter, providing high quality food for snails. In the Murray before regulation most of the periphytic biomass was probably microbial, as fluctuating water levels would have maintained littoral communities in a highly productive, early state of succession his postulated that, by stabilizing seasonal water levels, regulation has promoted the production of filamentous green algae, an inferior food source, and so displaced snail populations from the open aquatic environment.     

浙江省水域调查录入系统的设计和应用

浙江省水域调查录入系统将调查数据与电子地图相整合,对分类水域数据进行统计计算,并对输入数据进行合理性和完整性检查,得到调查范围内现有水域的详细数据,实现了水域调查数据输入、计算、统计和查询的数字化管理,提高了工作效率和工作质量,为各地下阶段水域保护规划编制和水域管理工作提供了数据支持。对该系统的设计原则、功能和技术设计等作了介绍。     

基于CT-连续加荷水泥乳化沥青混凝土细观损伤规律研究

利用CT技术对水泥乳化沥青混凝土的细观损伤过程进行实时扫描观测,获得了混凝土试件在连续加荷下的CT图像。通过采用直观分析法、CT数分析法、CT数与损伤变量关系3种方法分析表明,水泥乳化沥青混凝土的破坏过程可分为压密、扩容、裂纹扩展、破坏4个阶段,同时混凝土在受压过程中具有韧性,在极限荷载之前各断面处于压密和微扩容的强化阶段,极限荷载之后混凝土从损伤到破坏发展比较平稳。     

Automated system for removal and pneumatic transport of fly ash from electric precipitator hoppers

A system for removal and pneumatic transport of fly ash is examined, in which air pulses act on batches (pistons) of ash formed in a duct. Studies are made of the effect of several physical parameters on the force required to displace a piston of ash and these serve as a basis for choosing a system for removal and pneumatic transport of ash simultaneously from several hoppers of an electric precipitator. This makes it possible to separate the ash particles according to size without introducing additional components. Formulas are given for calculating the structural and dynamic parameters of this system and measurements of indirect dynamic parameters are used to calculate the input-output characteristics of the system. In order to optimize the system, configurations for summing several ducts into a single transport duct for pneumatic ash transport are proposed. Some variants of dry ash utilization and the advantages of producing of size-separated particles are considered. __________ Translated from élektricheskie Stantsii, No. 2, pp. 26–30 (2008).     

The flood pulse advantage and the restoration of river-floodplain systems

The ‘flood pulse advantage’ is the amount by which fish yield per unit mean water area is increased by a natural, predictable flood pulse. Evidence for this increase is presented from tropical and temperate fisheries. It is argued that increasing multispecies fish yield by restoring the natural hydrological regime is consistent with increasing production of other trophic levels and with restoration from ecological and aesthetic viewpoints. When applied to a river-floodplain system, this restoration would provide a large, self-sustaining potential for recreation, commercial exploitation, and flood control. An interim ‘natural flood pulse’ restoration approach is proposed for systems modified for navigation. This approach approximates the natural hydrological regime in a river reach and is intended as a first step in the long process of restoring the watershed.     

浅谈天湖水电站水轮机运行故障及处理措施

简述天湖水电站投运以来各种故障的表现形式，分析其原因，提出了相应的处理方法及措施，并对合理利用国内外设备提出建议。