- 摘 要
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(1 四川省川建勘察設計院有限公司, 成都 610095; 2 四川省建筑設計研究院有限公司,成都 610095; 3 四川省建筑設計研究院有限公司復雜結構設計研究中心, 成都 610095)
摘要: 大直徑鋼管混凝土樁具有強度高、承載力大、變形小、施工快速等特點,適用于應急搶險工程. 在吳家溝安置區(qū)滑坡應急搶險工程中設置 6 根直徑 2m 鋼管混凝土抗滑樁,采用全回旋工藝成孔. 介紹了大直徑鋼管混凝土樁設計過程,分析了大直徑鋼管混凝土樁施工前后滑坡位移監(jiān)測數(shù)據(jù). 結果表明,大直徑鋼管混凝土樁短時間內(nèi)有效控制了滑坡體變形速率,保證了永久抗滑工程的實施;處置后的滑坡處于穩(wěn)定狀態(tài),工程治理效果良好,為類似工程提供了一種新的思路.
關鍵詞: 大直徑鋼管混凝土樁; 滑坡; 應急搶險工程; 變形監(jiān)測
中圖分類號:TU473. 1 文獻標志碼:A 文章編號:1002-848X(2023)07-0137-06
DOI:10. 19701 / j. jzjg. SADI2321
Analysis on application of large-diameter concrete-filled steel pile in landslide emergency rescue in a resettlement area
LUO Yongzhong1,2, ZHOU Jun1,2, ZHAO Shixing2,3, NIE Haofan1,2,HUANG Xiangchun1,2, XIONG Bin1,2
(1 Sichuan Chuanjian Geotecnical Survey Design Institute Co. , Ltd. , Chengdu 610095, China; 2 Sichuan ProvincialArchitectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China; 3 Complex Structure Design andResearch Center, Sichuan Provincial Architectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China)
Abstract: Large-diameter concrete-filled steel pile has the characteristics of high strength, high bearing capacity, littledeformation,rapid construction, etc. , which is suitable for emergency rescue engineering. The landslide emergency rescueengineering in Wujiagou resettlement area was equipped with 6 concrete-filled anti-slide steel piles with a diameter of 2mand the full swing process was used to drill holes. The design process of large-diameter concrete-filled steel pile wasintroduced, and the monitoring data of landslide displacement before and after the construction of large-diameter concretefilled steel pile were analyzed. The result show that the large-diameter concrete-filled steel pile effectively controls thedeformation rate of the landslide mass in a short time, which ensures the implementation of permanent anti-slideengineering. The landslide after treatment is in a stable state, and engineering treatment is quite effective, which providesa new method to deal with similar projects.
Keywords:large-diameter concrete-filled steel pile; landslide; emergency rescue engineering; deformation monitoring
第一作者:羅永忠,碩士,教授級高級工程師,主要從事巖土工程、地質(zhì)災害勘察(查)、設計、施工工作,Email:351041227@qq. com.
[引用本文] 羅永忠,周俊,趙仕興,等. 大直徑鋼管混凝土樁在某安置區(qū)滑坡應急搶險中的應用研究[J]. 建筑結構,2023,53(7):137-142. LUO Yongzhong,ZHOU Jun,ZHAO Shixing,et al. Analysis on application of large-diameterconcrete-filled steel pile in landslide emergency rescue in a resettlement area [ J]. Building Structure, 2023, 53 ( 7):137-142.
