拉森钢板桩+高压旋喷预应力锚索复合桩施工技术研究  

Research on the Construction Technology of Lassen Steel Sheet Pile+High Pressure Jet Grouting Prestressed Anchor Cable Composite Pile

作　　者：马鸣华 MA Minghua(Shaanxi Construction Engineering Group Corporation Limited,Xi'an 710003,China)

机构地区：[1]陕西建工集团股份有限公司,陕西西安710003

出　　处：《陕西建筑》2024年第11期13-19,共7页Shaanxi Architecture

摘　　要：目前各种建筑物与地下管线深大基坑开挖,因其需要大量的内钢撑,使用拉森钢板桩支护的案例很少,几乎不适用。拉森钢板桩+高压旋喷预应力锚索复合桩主要包括拉森钢板段和钢预应力钢束。文章详细说明了这种复合桩的施工流程以及操作要点。这种新型拉森钢板不需要内钢撑,利用预应力钢束加固土体、消除土体抗滑移、控制土体变形和位移,能够提高钢板桩的强度、刚度和稳定性。最后对目前的工程应用实例做了简要介绍。At present,the excavation of deep and large foundation pits for various buildings and underground pipelines requires a large amount of internal steel supports.There are few cases of using Larsen steel sheet piles for support,which is almost inapplicable.Larsen steel sheet pile+high pressure jet grouting prestressed anchor cable composite pile mainly includes Larsen steel sheet section and steel prestressed steel strands.The construction process and operation points of this composite pile are explained in detail.This new type of Larsen steel plate does not require internal steel bracing.It uses prestressed steel strands to reinforce the soil,eliminate soil anti-slip,control soil deformation and displacement,and can improve the strength,rigidity and stability of the steel sheet pile.Finally,a brief introduction to current engineering application examples is given.

关 键 词：拉森钢板桩 施工流程 沉降 研究 

分 类 号：TU758.11[建筑科学—建筑技术科学]