We are engaged in designing , producing and installing all kinds of adjustable storage racks , drive - in racks , movable racks , dynamic storage racks and article shelves , which are used in supermarket , library , archive , bank , factory , store house and shopping center and etc . widely 本公司选用优质的原材料，致力于各类可调试装配式仓储货架巷道式货架贯通式货架移动式货架重力式货架和物料器具存放的设计制造安装。广泛应用于各类商场超市厂矿银行机关医药储运文教图书馆展览馆等各行各业。
A brief introduction is given to the treatment of the zeya dam foundation , principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir . as for the excavation of the sand - gravel zones , except the toe slab and its 1 / 9 bottom width down stream , the alluvial layers are excavated to the micro - weathered rocks , while the other sections remain unexcavated . regarding to the treatment of the fracture zones , concrete filling is used for the toe slabs and semi - permeable materials are used for other section . according to the construction characteristics , a filter is placed in the down stream embankment foot . to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted . as a result safety , economic benefit , convenience in construction and good performace are achieved 介绍碧莲水电站拦水坝系软基上的水力自控翻板闸门溢流坝工程特点和设计原理.闸门利用水力和杠杆原理实现自控关闭；闸坝平时挡水发电,洪水期自动翻倒泄洪冲砂,有效地解决洪水对上游库区实物的淹没损失及水库泥沙淤积问题；闸坝采用地下混凝土连续墙进行地基防渗处理及面流消能，消能效果显著，工程投资少.本工程设计可供其它建固定坝淹没损失过大或在软基上建低重力式堰坝的类似工程参考
Retaining wall is a construction form of the widespread adoption in engineering field , although appeared the new form of the wall in recent years with the new way of doing , the gravity wall built with stone is still the main form , and therefore the study on optimization design of the gravity wall built with stone has very important meaning 挡土墙是工程界普遍采用的结构形式，虽然近年来出现了不少挡土墙的新形式和新做法，但石砌重力式挡土墙仍然是工程中挡土墙的主要形式，因此对砌石重力式挡土墙进行优化设计研究具有十分重要的意义。
We , civil engineers , also get the chance to welcome a revolution to widely apply new computer technology to civil engineering although it is a little bit later compared to other engineering fields like mechanical engineering . under this background , with the full help of some new computer technologies , a software system called netfeaf ( network based finite element analysis framework ) is built . it integrates three important parts : ooparafea ( object oriented parallel finite element analysis ) , webfea ( web based finite element analysis ) and netgrawcad ( network based gravity wharf cad integrated system , which has passed the appraisal of china ministry of transportation with a comment which says " holds the first - class level in china " ) 计算集群的建立、串并行有限元分析( ooparafea ： objectorientedparallelfiniteelementanalysis ) 、 web有限元计算( webfea ： webbasedfiniteelementanalysis ) 、基于网络的重力式码头cad系统( netgrawcad ： networkbasedgravitywharfcadintegratedsystem ) 、用户接口以及通信模块等的实现都充分利用了面向对象的思想，模块化的实现策略使系统具有了很好的稳定性及可扩展性。
