基于裂隙段划分的粗岩裂隙注浆穿透量逐步计算方法

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology Pub Date : 2025-08-04 DOI:10.1016/j.tust.2025.106944

Xiaochen Wang , Lianzhen Zhang , Qingsong Zhang , Rentai Liu , Changxin Huang

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引用次数: 0

摘要

岩石裂隙注浆的穿透范围往往受岩石裂隙表面波动规律和结构性质（如表面粗糙度和匹配/不匹配程度）的影响。岩体裂隙注浆贯通范围的准确评估是工程实践中注浆参数选择的关键。本文提出了一种基于裂隙段划分-扩散距离推进思想的粗岩裂隙注浆穿透量逐步计算方法。该方法考虑了裂缝粗糙度、裂缝孔径以及裂缝面沿其延伸方向的高程波动等因素的影响。实现了注浆贯通范围、注浆压力、粗缝压力分布的实时计算。与前人的实验和数值研究结果比较表明，本文的计算结果与实验和数值结果吻合较好。验证了所提方法的合理性。通过参数分析，探讨了裂缝粗糙度、裂缝孔径、裂缝上下表面粗糙度差以及浆液流变参数对粗糙岩体裂隙注浆行为的影响。最后，对该方法的局限性和未来的研究方向进行了讨论。

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A stepwise calculation method for grouting penetration in rough rock fracture based on fracture segment division

The grouting penetration range in rock fracture is often influenced by the surface undulation pattern and structural property of the rock fracture (e.g. surface roughness and matching/mismatching degree). Accurate evaluation of the grouting penetration range in rock fracture is critical for selecting grouting parameters in engineering practices. In this paper, a stepwise calculation method for grouting penetration in rough rock fracture was proposed based on the idea of fracture segment division-diffusion distance advancement. This method considered the impact of fracture roughness, aperture, and the elevation fluctuations of fracture surfaces along its extended direction. It can realize the real-time calculation of the grouting penetration range, grouting pressure, and the pressure distribution in rough fractures. Comparisons with previous experimental and numerical research show that the calculated results in this paper aligned well with experimental and numerical results. It verifies the rationality of the proposed method. A parametric analysis was performed to explore the influence of fracture roughness, aperture, roughness differences between the upper and lower fracture surface, and the slurry rheological parameters on the grouting behaviour in rough rock fracture. Finally, the limitations of the proposed method and future research directions were discussed.

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来源期刊

Tunnelling and Underground Space Technology 工程技术-工程：土木

CiteScore

11.90

自引率

18.80%

发文量

454

审稿时长

10.8 months

期刊介绍： Tunnelling and Underground Space Technology is an international journal which publishes authoritative articles encompassing the development of innovative uses of underground space and the results of high quality research into improved, more cost-effective techniques for the planning, geo-investigation, design, construction, operation and maintenance of underground and earth-sheltered structures. The journal provides an effective vehicle for the improved worldwide exchange of information on developments in underground technology - and the experience gained from its use - and is strongly committed to publishing papers on the interdisciplinary aspects of creating, planning, and regulating underground space.