PSI - Issue 32

A.K. Fedoseev et al. / Procedia Structural Integrity 32 (2021) 202–208 A. K. Fedoseev/ Structural Integrity Procedia 00 (2021) 000 – 000

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When maximum pressure is maintained over the whole length of flaw zone at the WPS top the situation doesn’t change much while pumping pressure doesn’t exceed 1.5 MPa, but its increase up to 2 MPa leads to visible widening of fault zone, especially in the middle, and its downward propagation (Fig.4).

Fig.4. Fault areas distribution in WPS for pumping pressure 2 MPa when maximum pressure is maintained over the whole length of flaw zone

Fig.5. Fault areas distribution in WPS for pumping pressure 1.5 MPa when maximum pressure is maintained over the whole length of flaw zone and infiltration of grouting material takes place