impervious curtain meaning in English
不透水帏幕
防渗帷幕
Examples
- Power intake dam section foundation impervious curtain grouting in the dachaoshan hydropower plant
大朝山水电站进水口坝段坝基防渗帷幕灌浆施工 - Design and construction of dam foundation impervious curtain grouting for dachaoshan hydropower station
大朝山水电站大坝基础防渗帷幕灌浆设计与施工 - Boring , grouting and finally forming an impervious curtain in the rock mass with cracks , that is one of the most popular methods of the foundation seepage control at hydraulic and hydroelectric engineering
采用钻孔水泥灌浆封堵岩体中的缝隙而形成阻水帷幕，达到减少渗漏量和降低渗透压力的目的，是水利水电工程基础处理的重要手段之一。 - For example , after the collapse of ditong dam in idaho , may 5 , 1976 , it was found that it was not impervious very well , the impervious curtain was built poorly . when the seepage went through the impervious curtain , the exit water from the pervious material of the downstream or the right side of dam through the foundation or certain line between the foundation and the dam caused contact scour and piping
如美国爱得华州提堂坝于1976年5月5日溃决，事后调查分析，因坝基透水性大，防渗帷幕施工质量差，渗流穿透帷幕，经地基或地基与坝的接触面从坝体下游侧透水料区逸出或从右坝肩绕渗经下游坝体逸出，出逸的水流引起了接触冲刷和管涌，导致溃坝。 - Gin is the abbreviation for grouting intensity number . it is showed by the product of the final grouting pressure p ( unit : mpa ) on the grouting section and the grouting volume v ( unit : l / m ) on every one meter of the grouting section , which means the energy consumed on every one meter of grouting section . according to gin method , if during the grouting construction , same energy is consumed on every grouting section , i . e . gin keeps to be a constant , an approximately uniform impervious curtain can be obtained
Gin ( groutingintensitynumber )即灌浆强度值，它用灌浆孔段上最终的灌浆压力p ( mpa )和单位灌浆段长度浆液灌注量v ( l / m )的乘积表示，其含义为单位灌浆段上消耗的能量， gin法灌浆认为在灌浆施工中，保持各灌浆孔段上消耗一致的能量，即保持gin为常数，便可形成一道大致均匀的防渗帷幕。