UDC中华人民共和国国家标准PGB50086-2011岩土锚固与喷射混凝土支护工程技术规范Technicalcodeforengineeringofgroundanchoringandshotcretesupport1GB规范修编组2011-071总则........................................................................................................................................................62术语、符号............................................................................................................................................72.1术语................................................................................................................................................72.2符号.............................................................................................................................................103工程勘察与调查..................................................................................................................................143.1一般规定.......................................................................................................................................143.2环境地质调查...............................................................................................................................143.3工程勘察.......................................................................................................................................154预应力锚杆..........................................................................................................................................174.1一般规定.......................................................................................................................................174.2锚杆类型与构造...........................................................................................................................17（Ⅰ）拉力型与压力型预应力锚杆.............................................................................................17（Ⅱ）压力分散与拉力分散型锚杆.............................................................................................18（Ⅲ）可拆芯式锚杆.....................................................................................................................20（Ⅳ）树脂卷锚杆与快硬水泥卷锚杆.........................................................................................20（Ⅴ）涨壳中空注浆锚杆.............................................................................................................20（Ⅵ）摩擦型锚杆.........................................................................................................................204.3预应力锚杆类型的选择...............................................................................................................204.4材料...............................................................................................................................................224.5防腐保护.......................................................................................................................................254.6设计...............................................................................................................................................27（Ⅰ）锚杆设置.............................................................................................................................27（Ⅱ）锚杆的安全系数.....
