An Active Compensation Method for the Pile Foundation Settlement of an Existing Bridge Influenced by Metro Construction
(1 Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing 100044; 2 Beijing Municipal Engineering Research Institute, Beijing 100037; 3 Beijing Major Projects Construction Headquarters Office, Beijing 100029)
Abstract：
In response to poor controllability and difficulties with compensating for early settlement by conventional passive protective measures during metro construction beneath existing bridges, an active compensation method for pile foundation settlement of an existing bridge is presented in this paper. The upper and lower structures of the bridge are considered as two separate units—specifically, settlement of the upper part is actively adjusted using the help of an automatic monitoring system to keep it in a safety state by means of determining the rational key technical parameters and applying computer-controlled jacking-up devices. This technique has been successfully applied to the construction of Beijing Metro Line 7 beneath the Shuangjing Bridge.
SU ,
JIE 1,
ZHANG Ding-Li-1 etc
.An Active Compensation Method for the Pile Foundation Settlement of an Existing Bridge Influenced by Metro Construction[J] MODERN TUNNELLING TECHNOLOGY, 2015,V52(3): 39-46
2015, Vol. 52 