白石水库泄洪排沙底孔水工布置及配筋设计  

Layout and Reinforcement Design of Bottom Holes in Baishi Reservoir

作　　者：宋纯玉[1] 杨伟伟[1] 黄柏洪[1] 韩旭[1] 

机构地区：[1]辽宁省水利水电勘测设计研究院,沈阳110006

出　　处：《水利水电技术》1998年第9期15-17,共3页Water Resources and Hydropower Engineering

摘　　要：白石水库位于辽宁省西部大凌河干流上．为了减少库区泥沙淤积，延长水库寿命，在河床右侧集中布置12个4m×7m的泄洪排沙底孔．为了减轻泥沙对底孔检修门槽的磨蚀，将底孔事故检修门布置在喇叭段进口，以利减小流速．为了避免泥沙对底孔的堵塞，将工作门布置在洞身平直段前缘．在底板及侧壁一定高度采用了硅粉混凝土，以增加洞壁的抗磨蚀能力．白石水库坝址气候条件属于严寒地区，对于底孔在考虑温度荷载时，如何进行配筋设计是值得商榷的一个问题．底孔配筋是以全过程粘弹性空间有限元仿真计算为依据，并考虑了其它条件如方便施工与否、内外部保温情况等进行了配筋设计，配筋量介于保温和不保温之间．Baishi reservoir lies on the main stream of the Daling River in the west of Liaoning Province. Inorder to reduce sediment depositing and to extend the life of reservoir , centralized array twelve bottom holes of4 m×7 m at the right of river-bed. For solving the gate slot of repair wear because of sediment, the repair gateis disposed in the entrance of bell mouth, thus reducing velocity of flow. To avoid the sediment block up thebottom holes, the work gate is disposed at the front verge of straight hole's body. what's more, the siliconpowder concrete is used in the bottom blank and sideway-wall, from this to increase wear capablity of holewall. Condition of climate is belong to area of sever cold, at the Baishi dam'address, considering load of temperature, how to design reinforcement that is worth a question of deliberateness. It is based on calculation to imitate real of gluey resilient space Ltd. Unit of whole process, reinforcement of Baishi bottom holes, at the sametime, considering other conditions such as easy to construction, inside and outside heat preservation etc., thequantities of reinforcement is between heat preservation and not.

关 键 词：底孔布置 底孔配筋 水库 泄洪排沙底孔 

分 类 号：TV652.2[水利工程—水利水电工程]