id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-29627	Wen, Zhaolun	Shield Machine and Shield Model Machine	2025	4	.pdf	application/pdf	3232	135	41	More automated and intelligent operation Modern shield machine has not only realized the artificial form of shield operation, through continuous improvement of innovative design, modern shield machine has gradually realized the automatic, intelligent operation and production. Research status of shield machine abroad Throughout the development history of shield tunneling for more than 180 years, the improvement of shield tunnel construction method and shield tunneling machine is around : 1 Strata stability and ground subsidence control; 2 mechanization, automatic tunneling and tunneling speed; 3 Lining and tunnel quality, the three elements of the shield tunneling machine improvement and construction methods of the revolution.	cache/ajst-29627.pdf	txt/ajst-29627.txt