中越桩基检测规范抗压静载试验差异探讨
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摘要
对于抗压桩的静载试验,越南规范《Piles-standard test method in situ for piles under axial compressive load》(TCVN 9393:2012)与中国规范《建筑基桩检测技术规范》(JGJ106-2014)存在一定的差异。本文对试桩数量、加载量、试验桩、试桩—反力系统—位移测量系统的布置距离、越南标准加载法与我国慢速维持荷载法、终止加载条件、极限承载力判定方法和安全系数取值等重点内容进行了比较,并就二者显著差异之处进行了讨论。
There are some differences between Vietnam code Piles-standard test method in situ for piles under axial compressive load(TCVN 9393:2012) and Chinese code Technical code for testing of building foundation piles(JGJ106-2014) on the static load test method of piles under compressive load. The main contents of the two codes are compared including the requirement on test pile quantity, test load, trial pile, the distance between testing pile, reaction system and measurement system, the test procedure, the test termination criteria, the ultimate bearing capacity determination, the safety factor etc. The main differences between the two codes are discussed.
There are some differences between Vietnam code Piles-standard test method in situ for piles under axial compressive load(TCVN 9393:2012) and Chinese code Technical code for testing of building foundation piles(JGJ106-2014) on the static load test method of piles under compressive load. The main contents of the two codes are compared including the requirement on test pile quantity, test load, trial pile, the distance between testing pile, reaction system and measurement system, the test procedure, the test termination criteria, the ultimate bearing capacity determination, the safety factor etc. The main differences between the two codes are discussed.
引文
[1] 龚维明, 于清泉,戴国亮. 越南大翁桥桩基承载性能试验研究[J]. 岩土力学, 2009, 30(2): 558～562.Gong Weiming, Yu Qingquan, Dai Guoliang. Experimental research on bearing behavior of piles with self-balanced method in Daweng bridge in Vietnam[J]. Rock and Soil Mechanics, 2009, 30(2): 558～562. (in Chinese)
[2] 甘七零. 越南金瓯化肥项目试桩成果分析[J]. 工程建设与设计, 2011,(5): 128～131.Gan Qiling. Analysis for results of piling test on Vietnam Ca Mau fertilizer plant[J]. Construction & Design for Project, 2011,(5): 128～131. (in Chinese)
[3] 张利洁, 边智华, 景锋等. 越南海防热电厂二期工程超长大直径灌注桩荷载传递机理试验研究[J]. 长江科学院院报, 2012, 29(3): 55～58.Zhang Lijie, Bian Zhihua, Jing Feng et al. Mechanism of load transfer on ultra-long and large-diameter bored piles at thermal power plant phase-Ⅱ in Hai Phong City of Vietnam[J]. Journal of Yangtze River Scientific Research Institute, 2012, 29(3): 55～58. (in Chinese)
[4] Piles-standard test method in situ for piles under axial compressive toad(TCVN 9393:2012)[S]. (in Vietnamese)
[5] 中华人民共和国行业标准. 建筑基桩检测技术规范(JGJ106-2014)[S]. 北京: 中国建筑工业出版社, 2014.The Professional Standards of the People′s Republic of China.Technical code for testing of building foundation piles(JGJ106-2014)[S]. Beijing: China Architecture & Building Press, 2014. (in Chinese)
[6] 霍少磊, 朱小军, 龚维明. 钢管斜桩自平衡法静载试验研究[J]. 施工技术, 2014, 43(1): 23～25,44.Huo Shaolei, Zhu Xiaojun, Gong Weiming. Self-balance static loading experiment of inclined steel-pipe pile[J]. Construction Technology, 2014, 43(1): 23～25,44. (in Chinese)
[7] 徐江, 龚维明, 张琦等. 大口径钢管斜桩竖向承载特性数值模拟与现场试验研究[J]. 岩土力学, 2017, 38(8): 2434～2440,2447.Xu Jiang, Gong Weiming, Zhang Qi et al. Numerical simulation and field test study on vertical bearing behavior of large diameter steel of inclined piles[J]. Rock and Soil Mechanics, 2017, 38(8): 2434～2440,2447. (in Chinese)
[8] ASTM D1143-81(1987)e1. Standard test method for piles under static axial compressive load[S].
[9] High rise building-static loading test and control of quality of bored piles (TCXD 196-1997)[S]. (in Vietnamese)
[10] Pile foundation-design standard (TCVN 10304:2014)[S]. (in Vietnamese).Comparative study on static pile load test between Chinese and Vietnam code Zhu Jianmin et al.(30)Effect of humidity change on soil resistivity Sun Xu et al.(35)
[2] 甘七零. 越南金瓯化肥项目试桩成果分析[J]. 工程建设与设计, 2011,(5): 128～131.Gan Qiling. Analysis for results of piling test on Vietnam Ca Mau fertilizer plant[J]. Construction & Design for Project, 2011,(5): 128～131. (in Chinese)
[3] 张利洁, 边智华, 景锋等. 越南海防热电厂二期工程超长大直径灌注桩荷载传递机理试验研究[J]. 长江科学院院报, 2012, 29(3): 55～58.Zhang Lijie, Bian Zhihua, Jing Feng et al. Mechanism of load transfer on ultra-long and large-diameter bored piles at thermal power plant phase-Ⅱ in Hai Phong City of Vietnam[J]. Journal of Yangtze River Scientific Research Institute, 2012, 29(3): 55～58. (in Chinese)
[4] Piles-standard test method in situ for piles under axial compressive toad(TCVN 9393:2012)[S]. (in Vietnamese)
[5] 中华人民共和国行业标准. 建筑基桩检测技术规范(JGJ106-2014)[S]. 北京: 中国建筑工业出版社, 2014.The Professional Standards of the People′s Republic of China.Technical code for testing of building foundation piles(JGJ106-2014)[S]. Beijing: China Architecture & Building Press, 2014. (in Chinese)
[6] 霍少磊, 朱小军, 龚维明. 钢管斜桩自平衡法静载试验研究[J]. 施工技术, 2014, 43(1): 23～25,44.Huo Shaolei, Zhu Xiaojun, Gong Weiming. Self-balance static loading experiment of inclined steel-pipe pile[J]. Construction Technology, 2014, 43(1): 23～25,44. (in Chinese)
[7] 徐江, 龚维明, 张琦等. 大口径钢管斜桩竖向承载特性数值模拟与现场试验研究[J]. 岩土力学, 2017, 38(8): 2434～2440,2447.Xu Jiang, Gong Weiming, Zhang Qi et al. Numerical simulation and field test study on vertical bearing behavior of large diameter steel of inclined piles[J]. Rock and Soil Mechanics, 2017, 38(8): 2434～2440,2447. (in Chinese)
[8] ASTM D1143-81(1987)e1. Standard test method for piles under static axial compressive load[S].
[9] High rise building-static loading test and control of quality of bored piles (TCXD 196-1997)[S]. (in Vietnamese)
[10] Pile foundation-design standard (TCVN 10304:2014)[S]. (in Vietnamese).Comparative study on static pile load test between Chinese and Vietnam code Zhu Jianmin et al.(30)Effect of humidity change on soil resistivity Sun Xu et al.(35)