储油库地基高能级强夯+灌注桩处理分析.pdf

研究探讨
储油库地基高能级强夯艹灌注桩处理分析
马永峰,史宣陶2,周丁恒,易礼4
中国石油天然气华东勘察设计研究院,山东青岛266071
2.中铁二院工程集团有限责任公司,四川成都610031
3.票已黑工业大学,德国慕尼黑85748
4.上海申元岩土工程有限公司,上海20040
doi:10.3969/issn.1001-2206.2016.01.005
摘要:以珠海高栏岛成品油储备库地基处理工程为例,对全场地18000kN·m高能级强秀+关键建筑区域
灌注桩的地基处理方案进行研究。在平板载荷试验、重型动力触探、多道瞬态面波及土工试验的基础上,分析
了18000kN·m高能级强夯加固处理效果,并完成了灌注桩的低应变动力测试、钻芯法试验、超声波透射及
单柱静载荷试验,同时对蘿注桩桩身质量及桩基处理效果进行了检测与分析。分析结果表明,场地经过强夯和
灌注桩加固处理后,地基承载力和压缩模量满足设计要求;在依托工程地质条件下,该强夯能级的有效影礼向深
度为20m左右;此外,在实际施工中,应注意检测结果反映的软弱区域,适当地补充后续加固措施,以达到
工程设计及安全性要求。该工程地质条件下采用的地基处理方法可为后续类似工程提供借鉴与参考。
关键词:储油库;地基处理;强秀;高能级;灌注粧
Analysis on Treatment Effect of Using High Energy Level Dynamic Compaction and
Bored Piles in Oil Depots Foundation
MA Yongfeng, SHI Xuantao?, ZHOU Dingheng, YI Li+
1. China Petroleum East China Design Institute, Qingdao 266071, China
2. China Railway Second Engineering Group Co, Ltd, Chengdu 610031, Chir
3. Technical University of Munich, Munich 85748, German
4. Shanghai Shen Yuan Geotechnical Engineering Co, Ltd. Shanghai 200040, China
Abstract: Based on the foundation treatment engineering of the refined oil depots located in Gaolan Island, Zhuhai City
the treatment scheme of using ynamic compaction of 18000 KN.m level for the whole petrochemical site and bored piles
for the key building area was introduced in detail. Based on multi-channel transient surface wave test, heavy dynamic
penetration test, plate load test and laboratory test, the compaction effect was ana yzed. Low strain d namic test, core
drill n m ho ultrasonic transmission and static load test of single pile were carried out With results of those methods
bored pile quality and pile foundation treatment effect were tested and anal zed. Some conclusions have been drawn. The
foundation bearing capacity and compression modulus have reached the design standard after dynamic compaction and
bored pile treatment, The effective influence depth resulted from 18 000 KN.m energy level, which was about 20 m, was
proposed under this geotechnical condition. Besides, some later measures should be carried out to satisfy the design
foundation bearing capacity according to the soil layer condition and test results
ywords: oil depot; foundation treatment; dynamic compaction; high energy level; bored pile
随着我国能源需求的进一步加大,越来越多的沿现场试验810或数值模#拟1等方法,对强夯法与其他
海地区及城市兴建了大型炼厂。在软弱地基上建造大地基处理方法相结合进行了研究和工程应用,相关研
型油懽,控制地基变形,尤其是控制基础倾科,成为究成果仍需要在工程实践中进一步验证与分析。
炼厂地基写基础设计中的关键回题。大量工程实践表
本文以珠海高栏岛成品油储鍲库地基处理工程为
明,软弱地基上的大型油,基础不均匀沉降和倾斜背景,对全场地18000kN·m高能级强秀+关键建
是影向正常运营和使用的关键因素。强夯法作为地基筑区域灌注桩的地基処理方案进行了分析和研究。结
处理常用的方法,逐渐与其他地基奴处理方法结合,形成果表明,场地经过强夯和灌注桩加固处理后,地基承
综合处理方法。近年来,许多学者采用理论分析桁、载力和压缩模量满足设计要求。
第42卷第1期21