摘要
以广西柳州一处于复杂环境中的深基坑综合支护为对象,结合工程地质条件及勘察试验,提出了"注浆微型钢管桩+注浆微型树根桩+挂网喷砼+锚杆+预应力锚索"及"钢筋混凝土排桩+旋喷桩+挂网喷砼"2种综合支护方案进行支护,并阐述了方案的设计参数选取和施工工艺要求。实践表明,支护方案具有较好的适用性和安全性,可为类似基坑工程的设计和施工提供参考。
Taking a deep foundation pit supporting engineering in complex environment as an object, combined with engi- neering geological conditions and exploration test, comprehensive support schemes of ＂grouting micro steel pipe pile ＋ grou- ting micro root pile ＋ hanging net shotcrete ＋ anchor bar ＋ pre-strcssed anchor cable＂ and ＂reinforced concrete row pile ＋ jet grouting pile ＋ hanging net shotcrete＂ are put forward, and the selection of design parameters and the construction technolo- gy are also described. The practice shows that the support scheme has good applicability and safety, which can provide ref- erence for the design and construction of similar foundation pit engineering.
出处
《探矿工程（岩土钻掘工程）》
2017年第1期70-74,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
柳州市科技开发项目(编号:2014C030403)
关键词
复杂环境
深基坑
综合支护
微型桩
排桩
complex environment
deep foundation pit
comprehensive support
micro pile
row pile
