摘要
针对N-J水电工程调压竖井长溜管输送混凝土时骨料离析、下料速度快、混凝土和易性较差等输送技术难点,设计出一种"套接式H型"缓冲器,并对其结构设计及工作原理进行了详细研究。现场对比试验及应用表明:与原有的MY·BOX型缓冲器相比,新型缓冲器结构简单,制作成本低,且能有效控制高落差条件下的混凝土下落速度,解决混凝土拌和物离析及对管路磨损、击穿问题,保证了设备的使用寿命、施工安全及混凝土工程质量,可为类似竖井混凝土衬砌施工提供良好的借鉴。
Regarding aggregate segregation, excessively fast slipping and poor concrete mix-ability during concrete long distance convey by articulated chute in surge shaft of N-J （NEELUM-JHELUM）hydroelectric project, one kind of ＂sleeve-connected H：type＂ buffer was designed and its structure design ＆ operation principle were discussed. Compara- tive trial and application in site indicate that comparing with original MY · BOX buffer the new one has a simpler struc- ture and cheaper cost, and it can effectively control the concrete＇s dropping speed under high elevation difference and re- solve the concrete segregation and damage as well as breaking through for chute, guaranteeing the service life of equip- ment, construction safety and quality of concrete works, which can also provide reference for similar surge shaft con- crete lining project.
出处
《山东大学学报（工学版）》
CAS
北大核心
2017年第2期37-40,46,共5页
Journal of Shandong University（Engineering Science）
关键词
竖井
长溜管输送
混凝土衬砌
“套接式H型”缓冲器
shaft
long articulated chute transportation
concrete lining
sleeve-connected H-type Buffer
