... collapse. To address these issues, this study proposes a spatially optimised anchor-grouting combined support system integrating space-interlaced anchoring and open grouting method for inclined composite roofs. Steel sleeves are configured on cables to improve the shear resistance. And a spatially...

..., cementitious grout is typically injected into the annulus to displace the bentonite and re-establish friction at the soil–structure interface. Non-uniform grout coverage, caused by viscous fingering ( VF ), poses a significant risk during this process. VF occurs when a less viscous fluid (grout) is injected...

...X. F. Liu; P. Z. Pan; Z. Q. Xiong; Y. Y. Zhou; Z. F. Wang Grouting is a very effective means to repair modified fractured rock. However, problems such as severe grout leakage, slow increase in stone body strength, uncontrolled solidification time and poor permeability are often encountered...

...M. Cao; X. Ma Extensive field monitoring and a series of centrifuge model tests of grouting for rectangular pipe jacking were carried out to investigate the mechanism of grouting and its effects. An innovative jacking grouting device was developed to model the entire grouting process...

...Y. Kang; Y. Li; M. Zhang; X. Li; B. Liu Grouting cable is a newly developed technology for the reinforcement of fractured rock mass in coal mines of China. It integrates the procedures of cable anchoring and grouting, thus simplifying the working procedure of roadway support. However, ordinary...

... trend, and then these curves turn constant. The pore-water pressure of PPT2 presents a tendency of increasing and then decreasing, which is attributed to the transformation of slurry pressure into effective stress (Xu & Bezuijen, 2019a). grouting permeability tunnels & tunnelling...

...C. A. Anagnostopoulos; G. Sapidis The main objective of this study is to investigate the use of an amino-based epoxy resin as a new chemical grout with different resin-to-water ratios on the static and cyclic behaviours of medium–fine sand. To evaluate the effect of grouting on the static behaviour...

...E. Maclachlan; G. EL Mountassir; R. J. Lunn Low pH silica-based grouts suitable for penetrating fine-aperture fractures are increasingly being developed for use in engineering applications. Silica sol has an initial low viscosity; mixing with an accelerator destabilises the suspension, producing...

... released by the nebuliser. When A_t is equal to 1·0, 100% of the aerosol is transported through the porous medium. grouting laboratory tests model tests particle-scale behaviour seepage soil stabilisation There have been numerous previous studies of the injection...