A sodium silicate-based chemical grout was used in the Karkheh dam site in order to examine the performance of the chemical grouting technique for stabilization of the dam's filter material. Karkheh, an embankment dam with the reservoir capacity of about 7.4 billion cubic meter at the maximum water level, is the largest dam in Iran. The grouting works performed at the dam site, were part of the...

The work present in this paper was developed under the PhD thesis entitled “Application of Data Mining Techniques to the Design of Jet Grouting Columns”. The main goals of this study are the developing of analytical model, by application of Data Mining (DM) techniques, able to estimate the mechanical and physical properties of Jet Grouting (JG) material, namely the evolution of uniaxial compres...

a new chemical grouting method has been developed for conglomerate formations based on the experimental studies. due to the lack of chemical grouting experience of conglomerate formations, the testing programs were performed to evaluate the performance of chemical grouting in the water sealing of part of conglomerate foundation of karkheh earth dam using a combination of field and laboratory te...

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the effects of cementation and the physical properties of grains on the shear behavior of grouted sands are investigated in this paper. the consolidated-undrained triaxial shear behavior of three grouted carbonate sands with different physical properties, including particle size distribution, particle shape and void ratio, was studied. two sands were obtained from the north shores of the persia...

In order to investigate the fracturing of the bedrock and its possible heterogeneous distribution in situ, four boreholes equipped with double-U geothermal pipes of 100 m long were installed on the campus of the University of Liege (Liege, Belgium) over a surface area of 32 m2. The bedrock, which starts at a depth approximately of 8 m, is quite fractured and consists mainly of siltstone and sha...

A critical element in the any repair or upgrading project is the need to assess the condition of the structure. This assessment is needed to establish the existing condition of the structure and to plan for its repair. Secondly, means to assess in real time the progress of the repair are required especially when techniques such as grouting are being used. Finally, an assessment of the modified ...

This paper takes the ZF3806 working face of Shuiliandong Coal Mine in Binxian County, Shaanxi Province as engineering background. Aiming at problems development surrounding rock cracks and roof breakage encountered process roadway excavation support based on composite beam theory, method layered grouting reinforcement roadways is proposed according to deformation failure internal drilling condi...

Grouting treatment is the main technology to reduce or eliminate residual deformation and activation of foundations in goaf sites. Under influences overburden mining, distribution grouting foundation quite different from that conventional mechanism porous media. In this paper, considering time-dependent viscosity diffusion path slurry, permeation Bingham fluid derived based on seepage motion eq...

While post-grouting is frequently reported to improve the engineering performance of piles, shear strength soil around piles not well understood. To investigate strengthening mechanism with permeation grouting, laboratory tests were carried out on homemade cement from aspects and microstructure characteristics. The evolution rule stress–shear displacement curve grouting different contents was a...