ate\rqualification certificate in accordance with the law, and.\rcontract projects in the scope of its qualification grade\rwithin the permitted.\r167. The construction units shall take special protective\rmeasures against adjacent buildings, structures and\runderground pipelines that may cause damage to construction\rprojects.\r168. The main function of retaining wall is to maintain the\rstability of soil slope, prevent slope sliding and prevent the\rcollapse of earthwork slope.\r169. The vertical transportation platform shall be provided\rwith measuring protection railing and platform, and movable\rguard rails shall be provided, and the safety door shall be\rprovided at the platform port.\r170,
全文预览