Experimental research on the structural optimization of grouting holes in circular and rectangular pipe sections for trenchless pipe jacking

J Jiwei Wen Y Yachen Ma T Tian Xiang M Minchuan Gan H Huilin Qiao W Wenhao Zhang (School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China) D Dongyu Li (Department of Molecular Genetics, University of Texas Southwestern Medical Center) J Jiale Wu (Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Republic of Singapore) Z Zizhe Lu