水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2014年
6期
54-58
,共5页
三溪口%河床式水电站%悬挂式防渗墙%纤维混凝土%抛石混凝土%低压注浆
三溪口%河床式水電站%懸掛式防滲牆%纖維混凝土%拋石混凝土%低壓註漿
삼계구%하상식수전참%현괘식방삼장%섬유혼응토%포석혼응토%저압주장
Sanxikou%water-retaining hydropower station%suspended cut-off wall%fiber reinforced concrete%rocked-filled concrete%low pressure grouting method
针对三溪口河床式水电站工程过闸流量大、基础为深厚强透水砂砾卵石，防渗及防冲问题突出的特点，泄洪闸底板表面考虑抗冲耐磨要求设置聚丙烯纤维混凝土面层，防冲槽局部以抛石混凝土技术进行加固；枢纽右岸地势低，防渗系统封闭困难，利用枢纽右岸上游330国道路堤兼作挡水溢流坝，并在路堤迎水坡脚设置悬挂式防渗墙，连接上游山体与闸前垂直式防渗墙构建防渗系统；枢纽交通桥兼作左右岸外部交通连接线，基础承载力要求高，根据泄洪闸结构特点及河床地质条件，以泄洪闸底板作为筏型基础，低压注浆技术在渗流状态下强透水地基中被成功运用。
針對三溪口河床式水電站工程過閘流量大、基礎為深厚彊透水砂礫卵石，防滲及防遲問題突齣的特點，洩洪閘底闆錶麵攷慮抗遲耐磨要求設置聚丙烯纖維混凝土麵層，防遲槽跼部以拋石混凝土技術進行加固；樞紐右岸地勢低，防滲繫統封閉睏難，利用樞紐右岸上遊330國道路隄兼作擋水溢流壩，併在路隄迎水坡腳設置懸掛式防滲牆，連接上遊山體與閘前垂直式防滲牆構建防滲繫統；樞紐交通橋兼作左右岸外部交通連接線，基礎承載力要求高，根據洩洪閘結構特點及河床地質條件，以洩洪閘底闆作為筏型基礎，低壓註漿技術在滲流狀態下彊透水地基中被成功運用。
침대삼계구하상식수전참공정과갑류량대、기출위심후강투수사력란석，방삼급방충문제돌출적특점，설홍갑저판표면고필항충내마요구설치취병희섬유혼응토면층，방충조국부이포석혼응토기술진행가고；추뉴우안지세저，방삼계통봉폐곤난，이용추뉴우안상유330국도로제겸작당수일류패，병재로제영수파각설치현괘식방삼장，련접상유산체여갑전수직식방삼장구건방삼계통；추뉴교통교겸작좌우안외부교통련접선，기출승재력요구고，근거설홍갑결구특점급하상지질조건，이설홍갑저판작위벌형기출，저압주장기술재삼류상태하강투수지기중피성공운용。
Sanxikou hydropower station is a water-retaining station with large flow ,it is located on the foundation of thick permeable gravel pebbles ,which causes the problem of seepage and erosion .Regarding to these problems ,FRC(fiber re-inforced concrete) was used on the floor of the gate and RFC(rocked-filled concrete) was used in anti-scour channel for energy dissipation and erosion control .The embankment of State Road 330 located at the right bank of the upstream was served as water-retaining and overfall dam ,due to the low-lying right bank of the river which made it hard to seal the an-ti-seepage system .In addition ,Suspended cut-off wall was constructed at the heel of the riverside slope to connect the anti-seepage system between the upstream mountain and the vertical cut-off wall in front of the gate .The traffic bridge as the connecting media between the left and right bank ,the bearing capacity of its foundation was set high .According to the structural characteristics and the geological condition of the sluice ,the floor of the sluice was used as raft foundation and low pressure grouting method in sandy gravels were applied on strong permeable foundation successfully in the state of seepage .
