Abstract：
Utilizing project experience, this paper analyzes the cause of local seepage of a "bored pile+twin-tube jet grouting pile" grout curtain under a high-pressure, water-rich sand formation in a floodplain area of the Songhuajiang River. Such measures as vertical ground grouting, oblique grouting consolidation between the piles, exploratory excavation, enclosure of steel plates, intensive mesh+shotcrete support, and rapid subsealing were carried out to overcome the difficulty related to local seepage of the grout curtain during excavation of the deep foundation pit, ensuring successful construction.
LI Yi-Tang
.Technology for the Treatment of Local Water Seepage of a Grout Curtain Adopted in a Deep Water-Rich Foundation Pit[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(3): 188-192
2014, Vol. 51 