海洋平台射流辅助沉桩试验研究

朱丽红; 陈新勇; 王京印; 邢永超

doi:10.3969/j.issn.1001-5485.2014.12.017

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raybet体育在线院报 ›› 2014, Vol. 31 ›› Issue (12) : 83-87. DOI: 10.3969/j.issn.1001-5485.2014.12.017

岩土工程

海洋平台射流辅助沉桩试验研究

朱丽红¹,陈新勇²,王京印¹,邢永超¹

作者信息 +

High-pressure Water Jet to Assist Pile Driving for Offshore Platform

ZHU Li-hong¹, CHEN Xin-yong², WANG Jing-yin¹, XING Yong-chao¹

Author information +

文章历史 +

摘要

为探寻海洋石油平台桩基高效的建设方法,针对停锤后打桩困难甚至出现拒锤现象,提出高压水射流辅助沉桩的技术设想,并设计了海洋平台射流辅助沉桩模型试验装置,测试了6种不同形状喷嘴产生的射流对土塞表面的作用力。同时,通过对土体内应力分布状态进行数值模拟,得到6种喷嘴射流作用下土塞内的最大应力和最小应力,验证了模型试验结果。结果表明海洋平台桩基建设过程中,采用高压水射流辅助沉桩提高桩基建设效率是完全可行的,且6种喷嘴中等变速型喷嘴有限喷距最长,作用在土塞表面中心处的压力也最大。研究结果为海洋平台射流辅助沉桩原理样机采用等变速喷嘴试制提供了重要依据。

Abstract

In the pile foundation construction for offshore oil platform, pile drilling becomes difficult after hammer stops and even repelling of hammering occurs. To explore efficient approach of pile construction, we present a technical proposal of driving pile by high-pressure water jet, and design apparatus for model test. Forces generated by jets with six different nozzles acting on the soil plug are tested, and the stress distributions in the soil are numerically simulated. The maximum and minimum stresses in the soil plug under jet forces are obtained, and model test results are verified. Results showed that it is feasible to improve pile construction efficiency by employing high pressure water jet. Among the six different nozzles, nozzle with iso-variable velocity could generate the longest limited jet distance and in the meantime the largest force on the soil plug surface center. This research provides basis for the preparation of model machine.

导出引用

朱丽红,陈新勇,王京印,邢永超. 海洋平台射流辅助沉桩试验研究[J]. raybet体育在线院报. 2014, 31(12): 83-87 https://doi.org/10.3969/j.issn.1001-5485.2014.12.017

ZHU Li-hong, CHEN Xin-yong, WANG Jing-yin, XING Yong-chao. High-pressure Water Jet to Assist Pile Driving for Offshore Platform[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(12): 83-87 https://doi.org/10.3969/j.issn.1001-5485.2014.12.017

中图分类号： TE242

参考文献

[1]SPARREVIK P. Suction Pile Technology in Deep Waters[J]. Offshore Technology Conference, 2002, 142(41):1-9.
[2] 张伟丽,蔡健,郭嘉,等. 桩长对搅拌桩复合地基承载性能影响的数值分析[J]. raybet体育在线学报, 2010, 27(12): 64-67. (ZHANG Wei-li, CAI Jian, GUO Jia, et al. Numerical Analysis on Effect of Pile Length on Bearing Capacity of Cement-Soil Mixing Pile Composite Foundation [J]. Journal of Yangtze River Scientific Research Institute, 2010, 27(12): 64-67.( in Chinese))
[3] 亓乐,王青松,曲宁. 复合地基桩体向垫层刺入量模型试验研究[J]. raybet体育在线院报, 2012, 29(8): 125-128. (QI Le, WANG Qing-song, QU Ning. Model Test on the Depth of Pile Penetration into the Cushion of Composite Foundation[J]. Journal of Yangtze River Scientific Research Institute, 2012, 29(8): 125-128. ( in Chinese))
[4] 朱向荣,汪胜忠,叶俊能,等. 自平衡试桩荷载传递模型及荷载-沉降曲线转换方法改进研究[J].岩土工程学报, 2010, 32(11): 1717-1721. (ZHU Xiang-rong, WANG Sheng-zhong, YE Jun-neng, et al. Load Transfer Model and Improved Transition Method for Load-settlement Curve under O-cell Pile Testing Method[J]. Chinese Journal of Geotechnical Engineering,, 2010, 32(11):1717-1721. ( in Chinese))
[5] 闫澍旺,张锡治,刘润.海洋石油平台桩基拒锤现象[J].天津大学学报,2007,40(11): 1271-1276. (YAN Shu-wang, ZHANG Xi-zhi, LIU Run. Pile Driving Refusal of Offshore Platform[J]. Journal of Tianjin University, 2007,40(11): 1271-1276. ( in Chinese))
[6] 李素华, 殷建华,周健,等. 端承型基桩的桩-土作用机理研究探讨[J].岩石力学与工程学报,2004,23(6): 996-1000. (LI Su-hua, YIN Jian-hua, ZHOU Jian, et al. Study on Action Mechanism of End Bearing Piles and Its Application[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(6): 996-1000. ( in Chinese))
[7] 胡汉兵,余祖明,杨升威. 竖向荷载下群桩承载特性的弹塑性分析[J]. raybet体育在线院报,2001,18(1):41-44.(HU Han-bing, YU Zu-ming, YANG Sheng-wei. Elastic-plastic Analysis on Load-bearing Characteristics of Pile Groups under Vertical Loads [J]. Journal of Yangtze River Scientific Research Institute,2001,18(1):41-44. ( in Chinese))
[8] 韩志强.海洋平台桩基计算与施工方法探讨[J].中国海洋平台, 2002, 17(6): 28-31.(HAN Zhi-qiang. The Designing and Construction of Offshore Platform Pile Foundation[J]. China Offshore Platform,2002,17(6):28-31. (in Chinese))
[9] 李飒,韩志强,杨清侠,等. 海洋平台大直径超长桩成桩机理研究[J].工程力学, 2010, 27(8): 241-245.(LI Sa, HAN Zhi-qiang, YANG Qing-xia, et al. The Formation Mechanism of Super Large Diameter and Deep Penetration Pile in Offshore Platform[J]. Engineering Mechanics, 2010, 27(8): 241-245. ( in Chinese))
[10]袁灯平,黄宏伟,马金荣.软土地基桩侧表面负摩阻力解析模型[J].上海交通大学学报,2005,39(5):731-735,741. (YUAN Deng-ping, HUANG Hong-wei, MA Jin-rong. An Analytical Model of Negative Skin Friction of Piles in Soft Soil[J]. Journal of Shanghai Jiaotong University, 2005, 39(5): 731-735,741. (in Chinese))
[11]MANKBADI R R. Transition, Turbulence and Noise, Theory and Applications for Scientists and Engineers[M]. Holland: Klumwer Academic Publisher, 1994.
[12]闫澎旺,董伟,刘润, 等. 海洋采油平台打桩工程中土塞效应研究[J]. 岩石力学与工程学报, 2009, 28(4):703-709.(YAN Shu-wang, DONG Wei, LIU Run, et al. Study of Influence of Soil Plug on Driving Piles of Offshore Oil Drilling Platform[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(4): 703-709. (in Chinese))
[13]KUEHN H. Tests Extend Range for Underwater Pile Driving[J]. Journal of Ocean industry, 1988, 23(8): 42-44, 46-47.
[14]沈忠厚.水射流理论与技术[M].山东东营:石油大学出版社,1998.(SHEN Zhong-hou. Water Jet Theory and Technology[M]. Dongying: China University of Petroleum Press,1998. (in Chinese))
[15]杨永印,王瑞和,沈忠厚,等. 淹没条件下星形喷嘴射流流动特点的实验研究[J].石油学报, 2003, 24(2): 109-112.(YANG Yong-yin, WANG Rui-he, SHEN Zhong-hou, et al. Experimental Study on Jet Flow field of Star-shaped Nozzle under Submergent Condition[J]. Acta Petrolei Sinica, 2003, 24(2): 109-112. (in Chinese))
[16]卢长娜,姜景山. PCC 桩复合地基桩土应力比的计算及影响因素分析[J]. raybet体育在线院报, 2011,28(11):77-82.(LU Chang-na,JIANG Jing-shan. Calculation and Influencing Factors of Pile-Soil Stress Ratio of PCC Pile Composite Foundation[J]. Journal of Yangtze River Scientific Research Institute, 2011,28(11):77-82. (in Chinese))
[17]虞海珍,汪稔,赵文光,等. 波浪荷载下钙质砂孔压增长特性的试验研究[J].武汉理工大学学报, 2006, 28(11): 86-89.(YU Hai-zhen, WANG Ren, ZHAO Wen-guang, et al. Experimental Research on Development Pattern of Pore Water Pressure of Carbonate Sand under Wave Loads[J]. Journal of Wuhan University of Technology, 2006, 28(11): 86-89. (in Chinese))
[18]王孝兵,文松霖,徐文强. 大直径长桩接触面参数的敏感性分析[J]. raybet体育在线院报, 2011, 28(2):38-44. (WANG Xiao-bing, WEN Song-lin, XU Wen-qiang. Sensitivity Analysis of Interface Parameters of Large-Diameter Long Pile [J]. Journal of Yangtze River Scientific Research Institute, 2011, 28(2):38-44. (in Chinese))
[19]唐世栋,何连生,傅纵.软土地基中单桩施工引起的超孔隙水压力[J].岩土力学,2002,23(6):725-729,732. (TANG Shi-dong, HE Lian-sheng, FU Zong. Excess Pore Water Pressure Caused by an Installing Pile in Soft Foundation[J].Rock and Soil Mechanics,2002,23(6):725-729,732. (in Chinese))
[20]曾庆军,周波,龚晓南.冲击荷载下饱和黏土孔压特性初探[J].岩土力学,2001,22(4):427-431. (ZENG Qin-gjun,ZHOU Bo,GONG Xiao-nan. The Properties of Pore Water Pressure in Saturated Clay Soils under Impact Load[J]. Rock and Soil Mechanics,2001,22(4):427-431. (in Chinese))
[21]孟庆山,汪稔,刘观仕.冲击荷载下饱和软黏土的孔压和变形特性[J].水力学报,2005,36(4): 467-472.(MENG Qing-shan, WANG Ren, Liu Guan-shi. Experimental Study on Pore Water Pressure and Axial Strain of Saturated Soft Clay under Impact Load[J].Journal of Hydraulic Engineering, 2005,36(4): 467-472. (in Chinese))
[22]唐世栋,王永兴,叶真华.饱和软土地基中群桩施工引起的超孔隙水压力[J].同济大学学报, 2003,31(11):1290-1294. (TANG Shi-dong, WANG Yong-xing, YE Zhen-hua. Excess Pore Water Pressure Caused by Installing Pile Group in Saturated Soft Soil[J]. Journal of Tongji University,2003,31(11):1290-1294. (in Chinese))
[23]徐建平,周健,许朝阳,等. 沉桩挤土效应的模型试验研究[J].岩土力学, 2000,21(3): 235-237. (XU Jian-ping, ZHOU Jian, XU Zhao-yang, et al. Model Test Research on Pile Driving Effect of Squeezing against Soil[J]. Rock and Soil Mechanics, 2000,21(3): 235-237. (in Chinese))

基金

国家“863”计划项目(SQ2011AAJY3058);国家科技重大专项(2011ZX05026-004-08);山东省自然科学基金课题(ZR2011EEQ012);高等学校博士学科点专项科研基金资助课题(20110133120013);中央高校基本科研业务费专项资金资助 (13CX02050A/14CX02164A);中国石油大学科研启动基金资助项目(Y1302056)