岩土锚固与预应力钢材  

Rock-soil anchoring and prestressed steel

作　　者：屠月辉[1] 王新竹[1] 朱龙[1] 

机构地区：[1]天津钢铁有限公司金属科技公司,天津300301

出　　处：《金属制品》2009年第3期39-44,共6页Metal Products

摘　　要：介绍岩土锚固技术的基本概念、重要性和发展历史,说明采用预加应力锚索的岩土锚固比仅靠自身强度或重力的传统锚固方法稳定的优点。介绍岩土锚固技术的主要应用领域和作用,给出在边坡稳定、深基坑与抗浮、抗倾覆、隧道与地下洞室等工程的应用结构和实例。说明锚杆以不同分类方法划分的类型,给出锚杆用预应力钢材的型号、技术要求,对锚杆用钢绞线的伸直度和表面质量的特殊要求进行分析。提高原料洁净度,使盘条既有高的抗拉强度又有高的韧性,采用合适的生产工艺,预应力钢材才能满足岩土锚固工程的寿命和安全要求。To introduce the basic concept, importance and development history of rock - soil anchoring technology. It is pointed out that rock - soil anchoring adopted prestressed anchoring rope has the advantage over traditional anchoring way which uses self strength or gravity to keep structure stable. The main applied field and function of rock - soil anchoring technology is introduced. The applied structure and sample of engineering such as sicle slope stability, deep foundation pit, anti - floating, anti - overturning, tunnel and underground chamber etc. are given out. The type of anchoring bar classified in different way is illustrated. The pattern and technical requirement of prestressed steel for anchoring are given out. The straightness and special requirement of surface quality of steel strand for anchoring oat is analyzed. By improving purity of raw material can keep wire rod high tensile strength and high toughness. By adopting appropriate production process, the prestressed steel can satisfy the lifetime and safety requirements of rock - soil anchoring engineering.

关 键 词：岩土锚固 锚杆 预应力钢绞线 精轧螺纹钢筋 

分 类 号：TU528.571[建筑科学—建筑技术科学]