中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2020, Vol. 39 ›› Issue (03): 136-141.DOI: 10.3969/j.issn.1674-0696.2020.03.18

• 地下工程建设与运维风险评估与防控 • 上一篇    下一篇

海底超长距离大口径混凝土顶管顶力及摩阻力测试分析

陈孝湘1,2,陈勇3,赵剑豪4,贺雷5,陈文兴6,叶琦棽2   

  1. (1. 西安交通大学 土木工程系,陕西 西安 710049; 2. 中国电建集团福建省电力勘测设计院有限公司,福建 福州 350003; 3. 福建省鑫勇通市政工程有限公司,福建 厦门 361012; 4. 福建省建筑科学研究院有限公司,福建 福州 350108; 5. 中国电力科学研究院有限公司,北京 102401; 6. 国网福建省电力有限公司,福建 福州 350003)
  • 收稿日期:2019-05-06 修回日期:2020-02-11 出版日期:2020-03-29 发布日期:2020-03-29
  • 作者简介:陈孝湘(1983—),男,福建尤溪人,高级工程师,同等学力博士研究生,主要从事地下结构的设计与研究工作。E-mail:chip0912@163.com。
  • 基金资助:
    国家电网公司依托工程基建新技术研究项目(20160124)

Test and Analysis of Jacking Force and Friction Resistance of Large-Diameter Concrete Pipe-Jacking with Super-long Distance at Seabed

CHEN Xiaoxiang1,2, CHEN Yong3, ZHAO Jianhao4, HE Lei5, CHEN Wenxing6, YE Qishen2   

  1. (1. Department of Civil Engineering, Xian Jiaotong University, Xian 710049, Shaanxi, China; 2. Power China Fujian Electric Power Survey & Design Institute Co., Ltd., Fuzhou 350003, Fujian, China; 3. Fujian Xinyongtong Municipal Engineering Co., Ltd., Xiamen 361012, Fujian, China; 4. Fujian Academy of Building Research Co., Ltd., Fuzhou 350108, Fujian, China;5. China Electric Power Research Institute Co., Ltd., Beijing 102401, China; 6. State Grid Fujian Electric Power Co., Ltd., Fuzhou 350003, Fujian, China)
  • Received:2019-05-06 Revised:2020-02-11 Online:2020-03-29 Published:2020-03-29

摘要: 基于厦门翔安某海底综合管廊工程先行线顶管的实测顶力,分别研究了总顶力Fp、平均摩阻力fk与顶程L的相关关系,以细化后行线顶管的平均摩阻力fk取值。结果表明:当顶程L=0~20 m,fk绝对值大、波动频繁;当顶程L>30 m,fk≈3.0 kPa;当顶程L>380 m,fk< 2.0 kPa,并全区间fk在2.0 kPa上下震荡,且均未超过3.0 kPa;当施工停滞时,fk在恢复顶进的2~5 m范围内显著增大,随后迅速回落至正常水平。研究结果为后行顶管的平均摩阻力取值和中继间布置提供了依据。

关键词: 隧道工程, 海底工程, 超长距离, 大口径顶管, 顶进力, 摩阻力, 中间继

Abstract: Based on the in-situ measured data of the first pipe-jacking of Xiamen Xiangan subsea comprehensive pipe gallery project, the correlation between the jacking force Fp, the average resistance friction fk and the jacking distance L were studied, so as to refine the value of the average resistance friction fk in the second pipe-jacking. The results show that: fk has a large absolute value and fluctuates frequently when L=0~20 m; fk≈3.0 kPa when L>30 m; when L>380 m, and fk<2.0 kPa, fk oscillates up and down at 2.0 kPa and never exceeds 3.0 kPa. When the construction stops, fk increases significantly in the range of 2~ 5 m of recovery jacking and then it quickly falls back to normal level. The research results provide the basis for the average friction value of the second pipe-jacking and the layout of the relay wall.

Key words: tunnel engineering, submarine engineering, super-long distance, large diameter pipe-jacking, jacking force, frictional resistance, relay wall

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