Analysis on Improvement of Earth Pressure Balance Shield Soil in Water-Rich Pressure Sand and Pebble Stratum：a Case Study on  Shield Tunnel at Section from Qingniangong Station to Jiamaying Station on Line 2 of Luoyang Metro

Analysis on Improvement of Earth Pressure Balance Shield Soil in Water-Rich Pressure Sand and Pebble Stratum：a Case Study on 

WANG Shimin, WANG Xianming, WU Hengsheng, DING Yanchang

Tunnel Construction . 2021, (S2): 68 -74 . DOI: 10.3973/j.issn.2096-4498.2021.S2.008