人民黄河
人民黃河
인민황하
Yellow River
2014年
9期
130-133
,共4页
王国伟%侍克斌%白现军%努尔开力·依孜特罗甫
王國偉%侍剋斌%白現軍%努爾開力·依孜特囉甫
왕국위%시극빈%백현군%노이개력·의자특라보
陡深斜井%衬砌施工%自密实混凝土%布仑口-公格尔水电站
陡深斜井%襯砌施工%自密實混凝土%佈崙口-公格爾水電站
두심사정%츤체시공%자밀실혼응토%포륜구-공격이수전참
steep deep inclined shaft%lining construction%self compacting concrete%Bulungkol-Gongur Hydropower Station
针对布仑口-公格尔水电站引水系统陡深斜井施工中,二级配高性能混凝土浇筑因斜井角度大、混凝土溜送距离长、浇筑混凝土和安装钢管所需的人员和设备需不断地交替变换而造成的人工振捣困难、泵管易堵塞、施工速度缓慢和窝工等问题,进行混凝土配合比的调整,最终得到了浇筑顺畅、免振捣、能快速连续施工的一级配泵送自密实混凝土;并通过采取增加混凝土的分段浇筑长度(一般为80 m,最长一段为110 m),以及在溜管内整个溜送过程不设任何缓降装置的措施,从而简化了施工工序、降低了施工难度、提高了施工效率。
針對佈崙口-公格爾水電站引水繫統陡深斜井施工中,二級配高性能混凝土澆築因斜井角度大、混凝土霤送距離長、澆築混凝土和安裝鋼管所需的人員和設備需不斷地交替變換而造成的人工振擣睏難、泵管易堵塞、施工速度緩慢和窩工等問題,進行混凝土配閤比的調整,最終得到瞭澆築順暢、免振擣、能快速連續施工的一級配泵送自密實混凝土;併通過採取增加混凝土的分段澆築長度(一般為80 m,最長一段為110 m),以及在霤管內整箇霤送過程不設任何緩降裝置的措施,從而簡化瞭施工工序、降低瞭施工難度、提高瞭施工效率。
침대포륜구-공격이수전참인수계통두심사정시공중,이급배고성능혼응토요축인사정각도대、혼응토류송거리장、요축혼응토화안장강관소수적인원화설비수불단지교체변환이조성적인공진도곤난、빙관역도새、시공속도완만화와공등문제,진행혼응토배합비적조정,최종득도료요축순창、면진도、능쾌속련속시공적일급배빙송자밀실혼응토;병통과채취증가혼응토적분단요축장도(일반위80 m,최장일단위110 m),이급재류관내정개류송과정불설임하완강장치적조시,종이간화료시공공서、강저료시공난도、제고료시공효솔。
In the construction of steep deep inclined shaft in Bulungkol-Gongur Hydropower Station mix proportion of the high performance concrete was adjusted because of the problems that difficult artificial vibration and easily blocked pipe and slow construction caused by large inclined angle and long distance concrete slip and the pouring concrete and steel pipe installation required to constantly turn. It finally got a grade pump pouring smooth,vibration free,fast and continuous construction self compacting concrete;by increasing the length of the segmented pouring (usually 80 m, the longest one was 110m),in the slide tube within the entire feeding process without any slow falling device measures,it thus simiplified the con-struction process,reduced the construction difficulty and improved the efficiency of the construction.