1) curtain in dam foundation
坝基帷幕
1.
Due to operating for40years,it has many problems including part of curtain in dam foundation losing effectiveness, the integrality of facing concrete being weakened in some extent,stability agai nst sliding of some monoliths and lateral stability of counterfort retaining wa ll falling short of requirement of specifications in force.
大坝经过近40年运行,坝基帷幕部分失效,面板混凝土整体性遭受一定程度削弱,部分坝段抗滑稳定性、垛墙的侧向稳定性达不到现行规范要求。
2) heavy curtain grouting of large-delta base
坝基帷幕灌浆
1.
By the instance analysis of the sleeve valve tube grouting for the heavy curtain grouting of large-delta base in a reservoir in Chaoyang,this paper demonstrates the construction principles,technology,practicability and grouting effect of sleeve valve tube grouting method.
通过对潮阳某水库坝基帷幕灌浆采用袖阀管灌浆的实例分析,阐明袖阀管灌浆法的施工原理、工艺、实用性及其灌浆效果。
4) dam heavy curtain grouting
大坝帷幕灌浆
1.
Through grouting practice of design and construction,it is proved feasible and cheaper to use dam heavy curtain grouting technology for leakproof and bracing for foundation pit in the sandy gravel stratum.
通过一灌浆工程设计和施工实践，说明了在含水量高补给充分的砂砾卵石层中运用大坝帷幕灌浆技术进行基坑止水和支护的可行性和经济性。
5) curtain
[英]['kɜ:tn] [美]['kɝtṇ]
帷幕
1.
Effects of pH Value and Temperature on Adsorption of Heavy Metal lons by Anti-Seepage Curtain for Landfills;
温度和pH对填埋场防渗帷幕吸附重金属离子的影响
2.
Through curtain grouting, an effective and stable "flood control dam" is built which guarantee safty production of Zhangmatun iron deposit for 30 years.
济南张马屯铁矿安全生产30年,其根本保证是通过帷幕注浆建立起了一条长效稳定的地下“拦水大坝”。
3.
The general rule of fissure development in low dip soft-hard interbedding rock mass is described,and then based on this the dam foundation seepage is simulated with dual-medium model,and the influence of unstratabound fissure and waterproof curtain is discussed.
阐述了缓倾软硬互层状岩体中裂隙发育的一般规律,在这个基础上采用双重介质模型对层状坝基渗流进行了模拟,讨论了软岩层中切层裂隙的发育以及嵌入软岩帷幕对坝基渗流场的影响。
6) drapery
[英]['dreɪpəri] [美]['drepərɪ]
帷幕
1.
It introduces application of deep mixing cement-soil pile in maintenance of foundation pit, combined with storing pool of coking equipment it discusses no-support and earth-retaining & water-retaining drapery and its effect, which to extend the method.
介绍了深层搅拌水泥土桩在基坑维护中的应用,以某焦化装置内贮焦池具体工程为例,探讨了这种坑内无支撑、挡土挡水型帷幕的做法及应用效果,以推广应用该方法。
补充资料：帷幕
帷幕
curtain
WelmU帷幕(curtain)沿坝基及其两岸延伸部分的地下连续防渗幕体.它是常用的坝基防渗措施之一帷幕与挡水建筑物的防渗结构的可靠连接，共同形成地上、地下连续的防渗体系.用钻孔灌水泥浆或各种化学浆液形成的帷幕称灌浆帷幕(见帷幕灌策和化学灌泉).在砂砾石坝基中用泥投土防渗堵形成的帷幕称垂直防渗J.帷幕(见软基处理)。在防渗墙下进行灌浆的帷幕称组合式帷幕。帷幕的作用主要有:①减少坝基和绕坝渗漏量。②防止断层裂隙中的充填物及抗水性能差的岩层产生管涌。③在帷幕和排水的共同作用下，使幕后坝基及两岸边岸的渗透压力降低至允许值，防止渗透压力对坝体、坝基及两岸边坡稳定产生不利影响。④灌浆帷幕兼有对坝基表层的接触灌装和固结灌泉的作用。 帷幕的深度和伸人两岸的范围由坝高、地质条件及防渗要求等确定。帷幕深度一般伸人相对隔水层以下3~sm;伸人两岸的范围一般至正常蓄水位与天然地下水位相接处。帷幕范围也可根据地质条件及防渗要求，经计算或试验确定.通常帷幕深度多为0.3一。.7倍水头.相对隔水层考虑坝高、坝型、地质条件等因素，以钻孔压水试验透水率q<1~10 Lu(吕荣)为标准。岩溶地区的帷幕深度及伸入两岸的范围，应根据岩溶及渗漏通道的分布情况和防渗要求确定。伸人相对隔水层的帷幕称封闭式帷幕。未伸人相对隔水层的帷幕称悬挂式帷幕. 帷幕灌浆的钻孔方向有垂直的和倾斜的。帷幕钻孔的排数有单排的和多排的.倾斜帷幕在一定地质条件下，能穿过较多的岩体裂膝和层面，有时比垂直帷幕的防渗效果好，但对钻孔施工要求较高。单排孔帷幕适用于岩体完整性良好透水性弱的坝基;当帷幕承受水头较高或裂隙发育、岩体透水性强时，可采用多排孔帷幕。 当水头较高时，为保证帷幕质量和方便施工，两岸帷幕沿坝基按30~50m高差分层布置和施工，上、下层帷幕搭接处采取浅孔灌浆等措施以保证其可靠衔接。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条