不规则波作用下9桩串列群桩效应的实验研究
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摘要
小尺度的群桩结构在海洋工程建筑物中应用广泛,其在波浪作用下产生的群桩效应也被国内外学者所关注,但是目前有关群桩效应的研究多限于较少桩柱。基于物理模型实验,对不规则波作用下,9桩串列群桩中各桩所受正向力、横向力进行了研究,结合对应波浪作用下孤立桩所受波浪力,分析了正向力和横向力群桩系数K_(G,1/3)、K_(GL,1/3)随相对桩距S/D和KC_(1/3)数变化的规律,并对比了群桩中各桩上群桩系数的区别。
Small scale pile groups are widely used in ocean engineering. The pile group effect under wave action has been focused by scholars all over the world. However, the pile number is limited at the present studies associated with pile groups. The inline and transverse force were experimentally studied for a 9-tandem-pile group structure under the action of irregular waves. Combining with the forces on a single pile, the variation of the parameters K_(G,1/3), K_(GL,1/3) with relative pile distance S/D and KC_(1/3) number were analyzed. The group effects of each pile in the group structure were compared.
Small scale pile groups are widely used in ocean engineering. The pile group effect under wave action has been focused by scholars all over the world. However, the pile number is limited at the present studies associated with pile groups. The inline and transverse force were experimentally studied for a 9-tandem-pile group structure under the action of irregular waves. Combining with the forces on a single pile, the variation of the parameters K_(G,1/3), K_(GL,1/3) with relative pile distance S/D and KC_(1/3) number were analyzed. The group effects of each pile in the group structure were compared.
引文
[1]Chakrabarti S K. Transverse forces on vertical tube array in waves [J]. Journal of the Waterways, Harbors and Coastal Engineering, 1982, 108: 1-15.
[2]Chakrabarti S K. In-line and transverse forces on a tube array in tandem with waves [J]. Applied Ocean Research, 1982, 4(1): 25-32.
[3]俞聿修,史向宏. 不规则波作用于群桩的水动力系数 [J].海洋学报,1996, 18(2): 138-147. YU Y X, SHI X H. The hydrodynamic coefficients of piles group in irregular wave [J]. Acta Oceanologica Sinica, 1996, 18(2): 138-147.
[4]俞聿修,张宁川.不规则波作用于双桩桩列上的横向力 [J].海洋学报,1991,13(2): 254-261.YU Y X, ZHANG N C. The transverse force loads on array of bi-pile in irregular wave [J]. Acta Oceanologica Sinica, 1991, 13(2): 254-261.
[5]张宁川,俞聿修.不规则波作用下的群桩效应 [J].海洋通报,1993,12(3): 95-100. ZHANG N C, YU Y X. The pile grouping effect in random wave [J]. Marine Science Bulletin,1993,12(3):95-100.
[6]李玉成,王凤龙.作用于串列双桩桩列上的波流力 [J].水动力学研究与进展,1992,7(1): 141-149.LI Y C, WANG F L. Wave current forces on bipiles in tandem array [J]. Journal of Hydrodynamics (Ser.A),1992,7(1): 141-149.
[7]Chaplin J R, Subbish K, Irani M. Effects of wave directionality on the in-line loading of a vertical cylinder[C]// Proc. of 3rd International Offshore and Polar Engineering Conf., 1993, 116-121.
[8]Hogedal M, Skourup J, Burcharth H F. Wave forces on a vertical smooth cylinder in directional waves[C]// Proc. of 4th International Offshore and Polar Engineering Conf., 1994, 218-224.
[9]俞聿修,张宁川,赵群.三维随机波浪对桩柱的作用 [J].海洋学报,1998,20(4): 121-132. YU Y X, ZHANG N C, ZHAO Q.Wave actions on a cylinder in 3-D random waves [J]. Acta Oceanologica sinica,1998,20(4):121-132.
[10]雷欣欣,孙大鹏,徐雪蛟,等,作用在高桩承台上的不规则波波浪力试验研究 [J].水道港口,2013 (4):277-287. LEI X X, SUN D P, XU X J, et al. Experimental study of irregular wave force loads on high rise pile platform [J]. Journal of Waterway and Harbor,2013 (4):277-287.
[11]胡勇,雷丽萍,杨进先.跨海桥梁基础波浪(流)力计算问题探讨 [J].水道港口,2012,33(2):101-105. HU Y, LEI L P, YANG J X. Study of wave force on foundation of sea-crossing bridges[J].Journal of Waterway and Harbor,2012, 33(2): 101-105.
[12]JTS145-2015,港口与航道水文规范[S].
[13]张宁川,俞聿修.随机波浪作用于三桩桩列上的横向力的水动力特征及群桩效应 [J].水动力学研究与进展,1996,11(4):385-393.ZHANG N C, YU Y X. The hydrodynamic characteristics and pile grouping effect of transverse forces on an array of three-piles in random waves [J]. Journal of Hydrodynamics (Ser.A),1996,11(4): 385-393.
[2]Chakrabarti S K. In-line and transverse forces on a tube array in tandem with waves [J]. Applied Ocean Research, 1982, 4(1): 25-32.
[3]俞聿修,史向宏. 不规则波作用于群桩的水动力系数 [J].海洋学报,1996, 18(2): 138-147. YU Y X, SHI X H. The hydrodynamic coefficients of piles group in irregular wave [J]. Acta Oceanologica Sinica, 1996, 18(2): 138-147.
[4]俞聿修,张宁川.不规则波作用于双桩桩列上的横向力 [J].海洋学报,1991,13(2): 254-261.YU Y X, ZHANG N C. The transverse force loads on array of bi-pile in irregular wave [J]. Acta Oceanologica Sinica, 1991, 13(2): 254-261.
[5]张宁川,俞聿修.不规则波作用下的群桩效应 [J].海洋通报,1993,12(3): 95-100. ZHANG N C, YU Y X. The pile grouping effect in random wave [J]. Marine Science Bulletin,1993,12(3):95-100.
[6]李玉成,王凤龙.作用于串列双桩桩列上的波流力 [J].水动力学研究与进展,1992,7(1): 141-149.LI Y C, WANG F L. Wave current forces on bipiles in tandem array [J]. Journal of Hydrodynamics (Ser.A),1992,7(1): 141-149.
[7]Chaplin J R, Subbish K, Irani M. Effects of wave directionality on the in-line loading of a vertical cylinder[C]// Proc. of 3rd International Offshore and Polar Engineering Conf., 1993, 116-121.
[8]Hogedal M, Skourup J, Burcharth H F. Wave forces on a vertical smooth cylinder in directional waves[C]// Proc. of 4th International Offshore and Polar Engineering Conf., 1994, 218-224.
[9]俞聿修,张宁川,赵群.三维随机波浪对桩柱的作用 [J].海洋学报,1998,20(4): 121-132. YU Y X, ZHANG N C, ZHAO Q.Wave actions on a cylinder in 3-D random waves [J]. Acta Oceanologica sinica,1998,20(4):121-132.
[10]雷欣欣,孙大鹏,徐雪蛟,等,作用在高桩承台上的不规则波波浪力试验研究 [J].水道港口,2013 (4):277-287. LEI X X, SUN D P, XU X J, et al. Experimental study of irregular wave force loads on high rise pile platform [J]. Journal of Waterway and Harbor,2013 (4):277-287.
[11]胡勇,雷丽萍,杨进先.跨海桥梁基础波浪(流)力计算问题探讨 [J].水道港口,2012,33(2):101-105. HU Y, LEI L P, YANG J X. Study of wave force on foundation of sea-crossing bridges[J].Journal of Waterway and Harbor,2012, 33(2): 101-105.
[12]JTS145-2015,港口与航道水文规范[S].
[13]张宁川,俞聿修.随机波浪作用于三桩桩列上的横向力的水动力特征及群桩效应 [J].水动力学研究与进展,1996,11(4):385-393.ZHANG N C, YU Y X. The hydrodynamic characteristics and pile grouping effect of transverse forces on an array of three-piles in random waves [J]. Journal of Hydrodynamics (Ser.A),1996,11(4): 385-393.