20万吨级卸荷式板桩码头离心模型试验研究

徐光明; 刘阳; 任国峰; 顾行文

doi:10.11779/CJGE201801003

20万吨级卸荷式板桩码头离心模型试验研究 English Version

徐光明^1,2,
刘阳³,
任国峰^1,2, ,,
顾行文^1,2

1.南京水利科学研究院岩土工程研究所,江苏南京 210024
2.水文水资源与水利工程国家重点实验室,江苏南京 210029
3.南京市城乡建设委员会,江苏南京210029

基金项目: 国家高技术研究发展计划（“863”计划）课题项目（2012AA112510）

详细信息

作者简介:
徐光明(1963-),男,江苏武进人,教授级高级工程师,主要从事港口工程等方面的土工离心模型试验研究工作。E-mail:gmxu@nhri.cn。

通讯作者:
任国峰，E-mail：gfren@nhri.cn

中图分类号: TU473.1
计量
- 文章访问数: 411
- HTML全文浏览量: 3
- PDF下载量: 232
出版历程
- 收稿日期: 2016-03-29
- 发布日期: 2018-01-24

Centrifuge modeling of 200000 tonnage sheet-pile wharfs with relief platform

1.Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China
2.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China
3.Nanjing Urban and Rural Construction Committee, Nanjing 210029, China

摘要

摘要: 中国板桩码头结构的设计和建设从2000年前的3.5万吨级到现今的20万吨级,有了长足的进步。新提出的一种20万吨级卸荷式板桩码头结构,考虑了刚性较大的T型地连墙方案和柔性较大的组合钢管桩前墙方案,与之相对应的卸荷承台群桩基础结构中分别设置2排和3排直立灌注桩。开展了大型土工离心模型试验,对这两种方案的卸荷式板桩码头结构性能进行了验证。结果发现,这两种方案都是可行的,前墙位移均在允许范围内,其中刚性较大的T型地连墙方案中,前墙锚着点位移较小,但墙身弯矩反应较大,拉杆力较小,承台群桩基础结构中灌注桩弯矩反应正常,而柔性较大的组合钢管桩方案中,前墙锚着点位移较大,但墙身弯矩反应较小,拉杆力较大,承台群桩结构中灌注桩弯矩反应较强。前墙和灌注桩弯矩反应强烈程度所呈现的此消彼长特性,揭示了卸荷式板桩码头中单锚式板桩结构部分和卸荷承台群桩基础结构部分之间的荷载分担工作机制。
- 卸荷式板桩码头 /
- T型地连墙 /
- 组合钢管桩 /
- 卸荷承台群桩基础 /
- 拉杆 /
- 离心模型试验
Abstract: There is a great stride in the design and building of sheet-pile wharfs in China from 35000-tonnage before the year of 2000 to 200000-tonnage at present. Two design schemes are proposed to verify a 200000-tonnage sheet-pile wharf with relief platform. One has the rigid front wall of the reinforced concrete diaphragm of T-shaped cross-section with relief platform of 2 rows of vertical cast-in-place piles. The other has flexible front wall of composite steel pipe pile with relief platform of 3 rows of vertical cast-in-place piles. Two series of geotechnical centrifuge tests are carried out to investigate the performance of the sheet-pile wharf. It is shown that the two design schemes are verified to be feasible in that the front wall displacement is within the allowable limit. The response of the wall bending moment of the front is greater for the former scheme than for the latter scheme, whereas the displacements of the front wall at anchorage, the internal forces of tie-rods and the maximum bending moments of cast-in-place piles are smaller for the former scheme than for the latter scheme. The load transfer mechanism between the internal sheet-pile structure with a single anchorage and the pile group with relief platform is fully revealed from the above-stated shift of bending moment response intensity between the front wall and the cast-in-place piles.
- sheet-pile wharf with relief platform /
- T-shaped diaphragm wall /
- composite steel pipe pile /
- pile group with relief platform /
- tie-rod /
- centrifuge model test

HTML全文

参考文献(11)

[1]	刘永绣. 板桩式岸壁结构的设计理论与方法[M]. 北京:人民交通出版社, 2014. (LIU Yong-xiu.Design theories and methods for sheet-pile bulkhead[M]. Beijing: China Communications Press, 2014. (in Chinese))
[2]	李士林, 徐光明. 单锚板桩结构码头离心模型试验研究[J].水利水运工程学报, 2008(1): 67-72. (LIU Shi-lin, XU Guang-ming.Centrifuge modeling tests for sheet-pile bulkhead anchored by single layer of tie-rods[J]. Hydro-Science and Engineering, 2008(1): 67-72. (in Chinese))
[3]	徐光明, 李士林. 板桩码头中群桩基础联接型式的试验研究[J]. 岩石力学与工程学报, 2016, 35(增刊1): 1-8. (XU Guang-ming, LI Shi-lin.Experimental study of head fixity conditions of pile group in sheet-pile bulkhead[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(S1): 1-8. (in Chinese))
[4]	徐光明, 蔡正银, 曾友金, 等. 一种新型板桩码头结构的离心模拟[J]. 岩土力学, 2010, 31(增刊1): 48-52. (XU Guang-ming, CAI Zheng-yin, ZENG You-jin, et al.Centrifuge modeling for an innovative sheet-pile bulkhead of diaphragm[J]. Rock and Soil Mechanics, 2010, 31(S1): 48-2. (in Chinese))
[5]	徐光明, 章为民. 离心模型中的粒径效应和边界效应研究[J]. 岩土工程学报, 1996, 18(3): 80-86. (XU Guang-ming, ZHANG Wei-min.A study of size effect and boundary effect in centrifugal tests[J]. Chinese Journal of Geotechnical Engineering, 1996, 18(3): 80-86. (in Chinese))
[6]	CHAKRABARTI S K.Advanced series on ocean engineering-volume 9: offshore structure modeling[M]. Singapore: World Scientific Publishing Co Pte Ltd, 1994: 1-11.
[7]	刘永绣, 吴荔丹, 徐光明, 等. 遮帘式板桩码头工作机制[J]. 水利水运工程学报, 2006(2): 8-12. (LIU Yong-xiu, WU Li-dan, XU Guang-ming, et al.Working mechanism of sheet pile wharf with barrier piles[J]. Hydro-Science and Engineering, 2006(2): 8-12. (in Chinese))
[8]	徐光明, 陈爱忠, 曾友金, 等. 超重力场中界面土压力的测量[J]. 岩土力学, 2007, 28(12): 2671-2674. (XU Guang-ming, CHEN Ai-zhong, ZENG You-jin, et al. Measurement of boundary total stress in a multi-gravity environment[J]. Rock and Soil Mechanics, 2007, 28(12): 2671-2674. ( in Chinese))
[9]	JTS/T231—7—2013港口工程离心模型试验技术规程[S]. 2013. (JTS/T231—7—2013 Code for centrifugal model test for port engineering[S]. 2013. (in Chinese))
[10]	DL/T 5102—2013土工离心模型试验技术规程[S]. 2014. (DL/T 5102—2013 Specification for geotechnical centrifuge model test techniques[S]. 2014. (in Chinese))
[11]	TSINKER G P.Handbook of port and harbor engineering: geotechnical and structural aspects[M]. Springer US: ITP International Thomson Publishing, Chapman and Hall Press, 1997: 397-508.

施引文献(5)

期刊类型引用(5)

1.	吴锋，卓杨，刘旭. 整体卸荷式板桩码头原型观测技术. 水运工程. 2023(01): 29-33 . 百度学术
2.	田秀强. 深水地下连续墙板桩码头施工技术研究. 工程与建设. 2023(03): 1009-1011 . 百度学术
3.	蔡正银. 板桩结构土压力理论的创新发展. 岩土工程学报. 2020(02): 201-220 . 本站查看
4.	李沛. T型地下连续墙测试中弯矩的计算方法推导. 港工技术. 2020(06): 40-44 . 百度学术
5.	徐光明，任国峰，顾行文，陈爱忠，李乐晨. 新型板桩码头群桩基础被动段桩侧压力试验研究. 岩土工程学报. 2018(03): 502-511 . 本站查看