Based on the first phase project of Longhu Central Ring Road Station-Zhengda First Affiliated Hospital(East District)Station of Zhengzhou Metro Line 8,this paper analyzes the possible problems of shield crossing rivers and bridge piles,investigates the performance of shield machine before construction,controls the advancing speed,synchronizes grouting and adjusts the posture of shield machine during shield construction,pays attention to grease injection at shield tail and strictly controls segment installation after tunneling,sets safety measures,and pays attention to pipeline cleaning.The results show that the adopted construction technology and control measures can effectively improve the effect of EPB shield tunneling under rivers and reduce construction risks.
关键词
郑州地区/下穿河流/盾构掘进/施工控制
Key words
Zhengzhou area/underpass the river/shield tunneling/construction control
维普
万方数据