- Title
- Micro-mechanism of pressure variation of grout in porous media considering filtration
- Creator
- Zhou, Zilong; Du, Xueming; Wang, Shanyong; Cai, Xin
- Relation
- GeoShanghai 2018 International Conference. GSIC 2018: Proceedings of GeoShanghai 2018 International Conference: Multi-physics Processes in Soil Mechanics and Advances in Geotechnical Testing (Shanghai, China 27-30 May, 2018) p. 193-200
- Publisher Link
- http://dx.doi.org/10.1007/978-981-13-0095-0_22
- Publisher
- Springer Nature Singapore
- Resource Type
- conference paper
- Date
- 2018
- Description
- The pressure variation of cement grout is an important issue when it is used to eliminate the standard for grouting at the ending of grouting. To better understand the effects of grouting parameters on the pressure variations considering filtration, a series of laboratory tests were carried out under the condition of different grouting flowrates, water/cement ratios and mass fractal dimensions. After a grouting flowrate was performed on sand samples, the pressures in each measurement point were monitored by transducers. The experimental results show that: (1) the grouting pressure presents a nonlinear decreasing law with the increase of the distance from the grouting hole, whereas the grouting pressure at the same measuring point gradually increases with time or increases firstly and then decreases; (2) too large grouting flow or too small grouting flow is unfavorable to the diffusion of grout; (3) the grouting pressure decreases as the mass fractal dimension increases.
- Subject
- grouting pressure; micro-mechanism; filtration; fractal dimension
- Identifier
- http://hdl.handle.net/1959.13/1388929
- Identifier
- uon:32836
- Identifier
- ISBN:9789811300950
- Language
- eng
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