**Author details**

Wen-Chieh Cheng

**Date (m/d)**

**11/02**

**11/03**

**11/04**

**11/05**

**11/06**

**11/11**

**11/12**

**11/13**

**11/14**

**11/01**

Injected grout volume Migrated volume Elevated volume Settled volume Elevated efficiency Settled efficiency Compensation efficiency

116 Current Topics in the Utilization of Clay in Industrial and Medical Applications

**Figure 9.** Excess porewater pressure dissipation with time after grouting of day four (Case B).

**-10**

**0**

**10**

**20**

**Efficiency (%)**

**30**

**40**

**50**

**10/12**

**10/13**

**10/14**

**10/15**

**10/22**

**10/28**

**10/30**

**10/31**

**Figure 10.** Variations of the elevated, settled and compensation efficiencies for the jacking-up grouting (Case B).

**Cumulative**

**volume (m3**

**)**

Address all correspondence to: w-c.cheng@xauat.edu.cn

Institute of Tunnel and Underground Structure Engineering, School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, China
