Theoretical investigation of ground deflected MODE AFTER cementation

Abstract. Purpose. To correct the normative solution for pile capacity determination in the second type slump ground in the results of field tests and to develop the strengthening solution it is necessary to investigate the bore-pile behaviour based on natural supervision. In the results of geomonitoring the effectiveness of strengthening was estimate. Methodology. If slump from the dead weight of 30 cm and higher in the second type of groung conditions it is necessary to correct existent normative methodology for pile test in wetting ground and pile capacity determination and footing deformation in the strip and plate grillage. Findings. For the pile foundation strengthening the injection can be used to compensat the negative friction and to increas the soil bearing capacity in pile foot zone. During strengthening it is necessary to observe the technology of external hole boring and pumping and then the internal hole to achiev designed injection pressure volume on lower interval in pile widening zone. Practical value. During strengthening it is recommend to make building geomonitoring. Measuring periodicity must be determine it accordance with progress schedule. The results of observations can be used for deformation stabilization in the same geological conditions.