沙特复杂地质条件下全护筒施工技术应用介绍  

Application of Full Casing Construction in the Saudi Power Workshop Project

作　　者：于华童 Yu Huatong(Power Construction Corporation of China,Shandong Electric Power Construction Co.,Ltd.,Jinan,China)

机构地区：[1]中国电建集团山东电力建设有限公司,山东济南

出　　处：《科学技术创新》2025年第9期141-144,共4页Scientific and Technological Innovation

摘　　要：本论文探讨了全护筒施工技术在沙特动力车间项目中的应用及其效果。在项目初期,因地层粉细砂层的存在,普通护筒施工工艺频繁出现塌孔问题,导致施工进度受阻。为解决这一技术难题,经过多次试钻与降水调整后,项目部决定采用全护筒施工工艺。该技术不仅有效解决了桩基施工中的塌孔问题,还提高了施工安全性和效率。在此过程中,桩基试桩通过多项测试验证了设计假设及施工的可行性。研究表明,全护筒施工技术在复杂地质条件下表现出显著优势,尤其适用于不稳定的粉细砂层和高地下水位条件下的施工。This paper explores the application and effectiveness of full casing construction technology in the Saudi Power Workshop Project.During the initial phase of the project,the presence of silty fine sand layers led to frequent borehole collapses with the conventional casing construction method,hindering construction progress.To address this technical challenge,after multiple trial drillings and dewatering adjustments,the project team decided to adopt full casing construction technology.This approach not only effectively resolved the issue of borehole collapse during pile foundation construction but also enhanced construction safety and efficiency.Throughout the process,the trial piles were subjected to various tests that validated the feasibility of the design assumptions and construction methodology.The study demonstrates that full casing construction technology shows significant advantages under complex geological conditions,particularly for construction in unstable silty fine sand layers and high groundwater levels.

关 键 词：全护筒施工 复杂地质条件 钻孔灌注桩 桩基施工 粉细砂层 

分 类 号：TU753.3[建筑科学—建筑技术科学]