摘要
介绍了伞式自扩锚装置及其在基坑支护中的应用,结合拉拔试验,研究了该装置抗拔力估算方法、施工工艺及其在基坑支护过程中的位移特征,基坑监测资料表明伞式自扩锚可以将锚固力传到深远土层中去,有效地控制被锚固体的位移。
An umbrella shape self - expanded anchor is proposed in the paper. It is a new kind of anchor lacked the implemented experience. The estimation of uplift resistance is presented based on the engineering analogy method. A set of specimen is made for the estimated pull - out test. The estimated pull - out resistance of the proposed anchor is agreed with that of the test one. Application the proposed anchor to foundation pit support is discussed. Some measured data indicate that the proposed anchor can transfer its load into deep and distant subsoil. The settlement of the fastened object can be controlled effectively.
出处
《土木工程学报》
EI
CSCD
北大核心
2003年第8期102-108,共7页
China Civil Engineering Journal
关键词
伞式自扩锚
抗拔力
施工工艺
基坑支护
umbrella shaped self-expanding anchor, pull-out resistance, construction technique, foundation pit support
