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The potential for 'windows' in deeper jet grouting treatment

The potential for 'windows' in deeper jet grouting treatment becomes more significant when there are known variations in the soil characteristics over the length of the column. When changes in soil type or density occur, it is normal practice to vary the jet grouting parameters in an attempt to obtain regular column diameters. However, according to Soletanche Bachy, it is not possible to adjust jetting parameters for minor soil variations.

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