Technology for the Treatment of Local Water Seepage of a Grout Curtain Adopted in a Deep Water-Rich Foundation PitChinese Full Text
Li Yitang;The Second Engineering Company, China Railway No.1 Engineering Group Co. Ltd.;
Abstract: Utilizing project experience, this paper analyzes the cause of local seepage of a "bored pile+twintube 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.
Keywords：
Metro station; Water-rich deep foundation pit; Grouting curtain; Seepage treatment technology;
- DOI：
10.13807/j.cnki.mtt.2014.03.029
- Series：
- Subject：
- Classification Code：
TU753
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