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Soil improvement process using jet grouting which provides high grouting material savings
Soil improvement process using jet grouting which provides high grouting material savings
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机译:使用喷射灌浆进行土壤改良,可节省大量灌浆材料
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摘要
The invention finds application in the field of soil improvement and particularly relates to the process known in the art as "jet grouting". Particularly, with this process, in suitable soils part of the column volume is formed in a Water-Jet (WJ) step, using 2 soil eroding fluids, air and water, and the rest of the volume is formed using cement grout jacketed in air as a soil eroding fluid to be pumped through the same nozzle in the Grout-Jet (GJ) step; these steps are both carried out in the nozzle descending stage. The slurry created during the WJ step is displaced by the backfill (rich in grouting material) during the GJ step.
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