CAJ | 학술논문

盾构机推进系统可以看作一个振动系统，为了研究土压平衡式（earth pressure balance ，EPB）盾构机推进系统对初始条件的振动响应，用模态迭加法推导了无阻尼系统对初始条件的振动响应计算公式，在此基础上考虑地基弹簧的影响建立了五自由度无阻尼EPB推进系统振动模型，并推导了该振动模型对初始条件的振动响应．分析算例振动响应得出了绕 X轴和Y 轴的初始角度对推进系统的姿态影响很大．当初始角度为1°时，盾构机推进系统就会发生高达27.53°的偏转，这样对盾构机姿态角的调整会产生很大的挑战，甚至会使盾构机偏离计划路线太多无法完成掘进工作．研究结果对工程上EPB盾构机掘进过程中姿态角调整具有一定理论指导意义．
순구궤추진계통가이간작일개진동계통，위료연구토압평형식（earth pressure balance ，EPB）순구궤추진계통대초시조건적진동향응，용모태질가법추도료무조니계통대초시조건적진동향응계산공식，재차기출상고필지기탄황적영향건립료오자유도무조니EPB추진계통진동모형，병추도료해진동모형대초시조건적진동향응．분석산례진동향응득출료요 X축화Y 축적초시각도대추진계통적자태영향흔대．당초시각도위1°시，순구궤추진계통취회발생고체27.53°적편전，저양대순구궤자태각적조정회산생흔대적도전，심지회사순구궤편리계화로선태다무법완성굴진공작．연구결과대공정상EPB순구궤굴진과정중자태각조정구유일정이론지도의의．
The shield machine's thrust system can be seen as a vibration system .The computa-tional formula of the vibration response of the non-damping system to initial conditions was de-rived by using modal superposition method in order to study the response of the EPB's thrust sys-tem to initial conditions ,and based on w hich the 5 degrees of freedom non-damping thrust system vibration model was built considering the foundation spring .And then vibration response to ini-tial conditions is derived that initial angles around the X-axis and Y-axis have great influence on the attitude of the thrust system ,and the deflection of the thrust system will be up to 27.53° w hen the initial angle is 1° ,that makes a great challenge to adjust the angle of the shield machine attitude ,and even the shield will deviate from the planned route and be unable to complete the excavation work .The research has a theoretical guidance for the EPB shield machine attitude ad-justment .