[1]赵汝森,陈志东,冯鼎华,等.岩屑堆积下原水隧洞硬岩钢顶管顶进力计算[J].中国给水排水,2026,42(10):15-21.
ZHAORusen,CHENZhidong,FENGDinghua,et al.Calculation of Jacking Force for Hard Rock Steel Pipe Jacking in Raw Water Tunnel Considering Rock Debris Accumulation[J].China Water & Wastewater,2026,42(10):15-21.
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ZHAORusen,CHENZhidong,FENGDinghua,et al.Calculation of Jacking Force for Hard Rock Steel Pipe Jacking in Raw Water Tunnel Considering Rock Debris Accumulation[J].China Water & Wastewater,2026,42(10):15-21.
岩屑堆积下原水隧洞硬岩钢顶管顶进力计算
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第42卷
期数:
2026年第10期
页码:
15-21
栏目:
出版日期:
2026-05-17
- Title:
- Calculation of Jacking Force for Hard Rock Steel Pipe Jacking in Raw Water Tunnel Considering Rock Debris Accumulation
- 摘要:
- 近年来,顶管法在岩石地层中的应用日益广泛。在岩石顶管顶进过程中,超挖间隙中岩屑的堆积不可避免地影响管岩接触状态,进而影响硬岩顶管顶进力的大小。针对硬岩长距离钢顶管顶进力计算缺乏规范指导的问题,提出一种考虑岩屑堆积效应的顶进力计算模型。该模型耦合滚刀破岩迎面阻力与管-浆-渣多态接触摩阻力,并通过国内双向对顶硬岩顶管工程进行验证。结果表明:当岩屑堆积量较少时,管-岩呈顶部点接触,顶进力相比无岩屑工况略有减小;当沉渣带占比达60%~100%时,管-渣接触主导顶进力,摩阻力上升约20%。理论曲线与硬岩顶管工程的现场实测顶进力数据吻合较好,可为类似工程提供设计依据。
- Abstract:
- In recent years, the pipe jacking method has been increasingly applied in rock formations. During rock pipe jacking, the accumulation of rock debris in the over-excavation gap inevitably affects the pipe-rock contact condition, thereby influencing the jacking force in hard rock strata. To address the lack of standardized guidelines for calculating jacking forces in long-distance steel pipe jacking through hard rock, this study proposes a jacking force calculation model that accounts for the effects of rock debris accumulation. The model integrates face resistance based on the disc cutter rock-breaking mechanism with frictional resistance under multistate pipe-slurry-debris contact conditions, and is validated through domestic bidirectional hard rock pipe jacking project. The results indicate that when debris accumulation is minimal, pipe-rock top-point contact occurs, resulting in a slight decrease in jacking force compared to debris-free conditions. When the sedimentation zone ratio reaches 60%-100%, pipe-debris contact dominates, leading to a approximately 20% increase in frictional resistance. The theoretical curves are in good agreement with field-measured jacking forces in hard rock pipe jacking, providing a critical design reference for similar projects.
相似文献/References:
[1]杨仙,肖宇锋,崔杰平,等.穿越软硬不均地层的过河钢顶管施工案例分析[J].中国给水排水,2021,37(12):160.
YANG Xian,XIAO Yu-feng,CUI Jie-ping,et al.Case Study of Steel Pipe Jacking across River through the Hard-soft Heterogeneous Stratum[J].China Water & Wastewater,2021,37(10):160.
更新日期/Last Update:
2026-05-17