施钧良,段福平,吴尧成,蔡杰宇,黄超胜
SHI Jun liang,DUAN Fu ping,WU Yao cheng,CAI Jie yu,HUANG Chao sheng

• 1:浙江省送变电工程公司

摘要(Abstract)：

舟山与大陆联网工程螺头水道大跨越2基370 m高塔均位于海岛,基础坑底四侧采用掏挖嵌固形式,基础具有基坑深度大、掏挖净深大、开挖方量大等特点。为避免坑底掏挖对上部坑壁岩体产生破坏造成塌方,确保基坑成型质量及施工过程中的人身安全,结合基坑地质条件及成形特点,采用静态爆破掏挖施工工艺对这2基370 m高塔基础坑底进行施工。
The two 370-meter tower foundations of Luotou watercourse large crossing of Zhoushan-Mainland transmission project are located in sea islands. The four sides of foundation pits are excavated and embedded,and the foundations are characterized by deep foundation pit, large depth of excavation and large earthwork. In order to prevent landslide due to damage on rock of upper pit wall by excavation at the pit bottom and ensure forming quality of foundation pit and body safety during construction, the static blasting technology for excavation is adopted in construction of foundation pit bottom of two 370-meter towers by combining geological condition and forming character of foundation pit.

关键词(KeyWords)： 输电线路;370m高塔;基坑掏挖;静态爆破;施工工艺
transmission line;370-meter high tower;foundation pit excavation;static blasting;construction technology

Abstract:

Keywords:

基金项目(Foundation): 国家工程项目(浙发改能源[2007]564号)

作者(Author): 施钧良,段福平,吴尧成,蔡杰宇,黄超胜
SHI Jun liang,DUAN Fu ping,WU Yao cheng,CAI Jie yu,HUANG Chao sheng

DOI: 10.19585/j.zjdl.2013.10.021

参考文献(References)：

• [1]朱天浩,徐建国,叶尹,等.输电线路特大跨越设计中的关键技术[J].电力建设,2010,31(4):25-31.
• [2]叶建云,段福平,俞科杰.斜置式插入钢管基础施工的定位测量与控制[J].电力建设,2012,33(9):101-105.
• [3]杨永康.浅论架空输电线路施工基础的几种形式[J].科技资讯,2010,18:131.
• [4]李永祥.岩石嵌固式基础在750 kV输电线路中的应用研究[J].电力建设,2009,30(6):39-42.
• [5]鲁先龙,程永锋.我国输电线路基础工程现状与展望[J].电力建设,2005,26(11):25-27.
• [6]蓝芝宝.平行走向高压线路基础的爆破施工方法[J].广西电力,2003(2):25-27.
• [7]王运生.锚喷支护问题分析[J].科技资讯,2008(35):91.
• [8]卢勇,朱有武,邵侯清,等.静态爆破工艺在旧桥改造中的应用[J].筑路机械与施工机械化,2005,22(5):50-51.
• [9]王光辉.静态破碎剂在特殊路段路基岩石开挖中的应用[J].甘肃水利水电技术,2008,44(1):67-68.