This standard specifies the classifications,technical requirements,test methods,inspection rules,marking,packaging,transport and storage for rotary drilling rigs.
This standard is applicable to tracked,wheeled or walking type rotary drilling rigs electrically-driven or engine-driven.
定价: 540元 / 折扣价: 459 元 加购物车
本标准规定了冲击压路机的术语和定义、型号标记、要求、试验方法、检验规则、标志、包装、运输和贮存等。
本标准适用于拖式冲击压路机,其他类型冲击压路机可参照使用。
冲击压路机的冲击碾压主要用于下列工况:
——地基冲击碾压;
——土石混填,填石路堤分层冲压;
——路基补压;
——旧砂石(沥青)路面冲压;
——旧水泥混凝土路面冲压;
——风积沙、盐渍土等特殊土在试验段试验结果的基础上,经过充分论证方可实施。
不宜采用冲击压路机冲击碾压的工况:
——加筋土挡土墙路段;
——旧路改建中挡土墙、桥梁和涵洞等的承载力不足以承受冲击碾压荷载的路段;
——含水量超出范围,经冲击碾压试验验证效果不明显的路段;
——路基增强补压试验段冲击碾压20遍后平均下沉量≤30 mm的路段;
——建筑物安全间距不足的路段;
——有需要特别保护的建筑物路段。
定价: 31元 / 折扣价: 27 元 加购物车
This standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, marking, packaging and transportation of central turning hydraulic joint for hydraulic excavators.
This standard is applicable to the central turning hydraulic joint for hydraulic excavators.The central turning hydraulic joint for cranes, rotary drilling rigs, graders and other machinery may refer to this standard.
定价: 252元 / 折扣价: 215 元 加购物车
The standard specifies terms and definitions,technical requirements,test methods,inspection rules,product labels,operating instructions and attached documents,packaging,transportation and storage of mobile concrete pump.
The standard is applicable to mobile concrete pump with placing booms,truck-mounted concrete pump and pump with mixing drum and placing boom.
定价: 504元 / 折扣价: 429 元 加购物车