div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentdreng-ahmed-moussa-professor-of-rc-structures-faculty-of-eng-helwan-universityhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · DrEng AHMED MOUSSA Professor of RC Structures Faculty of Eng Helwan University 1225 Shotcrete in Tunnelling tSaftey of Tunnels Of : Tunnels D2- Consult GCI SWOFTWARE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220603135f0b529d7e708231d42ff251html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentdreng-ahmed-moussa-professor-of-rc-structures-faculty-of-eng-helwan-universityhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · DrEng AHMED MOUSSA Professor of RC Structures Faculty of Eng Helwan University 1225 Shotcrete in Tunnelling tSaftey of Tunnels Of : Tunnels D2- Consult GCI SWOFTWARE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220603135f0b529d7e708231d42ff251html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentdreng-ahmed-moussa-professor-of-rc-structures-faculty-of-eng-helwan-universityhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · DrEng AHMED MOUSSA Professor of RC Structures Faculty of Eng Helwan University 1225 Shotcrete in Tunnelling tSaftey of Tunnels Of : Tunnels D2- Consult GCI SWOFTWARE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...