摘要
五里冲水库是我国岩溶地区成功修建的第一座深过百米的盲谷无坝中型水库，是南溪河调水入蒙自、个旧地区的调节水库，工程量大，地质条件差，施工难度大，技术难点是强溶蚀渗漏区的防渗。通过大量地质勘测，防渗帷幕选线，两端为砂板岩不透水层，防渗底界为1200m以下发育微弱的岩溶层。强溶蚀地层防渗帷幕采用分层搭接悬挂式结构，在暗河、溶洞及岩溶塌陷处采用混凝土堵头、混凝土防渗墙及多排高压灌浆处理。经过蓄水运行及各种监测数据分析，防渗体系渗流量小于5L／s，溶塌体稳定，工程质量优良。
Wulicbong Reservoir is a mediumsed blind valley reservor withaut dam built succedly in bot area with adverse geO-boc conditions. The tecboed difficulty is mp treatment in percottri are with stIong soution. Tbo amtwan of the fol-lowing 3 schemes: dri^ha blanket, darn bullding and cchn gnting, it is condudal the latter is techncally reiable and bo-cally favourable. Th SeePagnd curtaln is of suSpenSon structure oVeriaped layer by 1ayer with constmction starting in the se-quence from bom Iayer to toP layer and dri doWnStrearn to upetream. bot rivere, caves and oolape sinks are treated with con-crete bullthed, concrete cutoff walls and high pare gnting. ImpoUnding qPertion and analySs of variOUS heed data reveal theseePage-nd curtain syStem woks nOrmalIy with quantity of seewee les than 5L/.
出处
《人民珠江》
2000年第2期31-33,36,共4页
Pearl River
关键词
中型水库
防渗帷幕
高压灌浆
五里冲水库
medium-sized reservoir
seepage-proof curtain
karst blind valley
high pressure grouting
underground cutoff wall
grouting of solution collapse
Wulichong Reservoir
Yunnan
