Title: Earth pressure prediction in the chamber for earth pressure balanced shield machines

Authors: Yi An; Xiaoli Zhou; Zhuohan Li; Cheng Shao

Addresses: School of Control Science and Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, Liaoning 116023, China ' School of Control Science and Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, Liaoning 116023, China ' School of Control Science and Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, Liaoning 116023, China ' School of Control Science and Engineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, Liaoning 116023, China

Abstract: Earth pressure balanced (EPB) shield machines are large and complex mechanical systems and have been widely applied to tunnel projects. The earth pressure in the chamber is very important for EPB shield machines to avoid ground settlement and guarantee safe construction during the tunnelling process. In order to improve the prediction accuracy of the earth in the chamber, we propose a new earth pressure prediction method in this paper. At first, we analyse the main factors influencing the earth pressure in the chamber and determine the inputs and output of the prediction model. Then, we use the least squares support vector machine to establish the prediction model whose parameters are optimised by the particle swarm optimisation. The experimental results demonstrate that the proposed method has high prediction accuracy and is an effective way to predict the earth pressure in the chamber for EPB shield machines.

Keywords: earth pressure; shield machine; prediction model; support vector machine; particle swarm optimisation.

DOI: 10.1504/IJCAT.2018.093525

International Journal of Computer Applications in Technology, 2018 Vol.57 No.4, pp.354 - 360

Received: 01 Apr 2017
Accepted: 21 Apr 2017
Published online: 27 Jul 2018 *

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