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加筋高压旋喷桩帷幕挡土墙 近年来,采用高压旋喷桩加固软弱地基,在我国已经得到广泛应用。然而采用加筋高压旋喷桩形成帷幕作挡土墙且防渗止水还无成功的先例。 上海扬子江大酒店工程采用加筋高压旋喷桩形成帷幕挡土墙,加固深度为10m、长108m、宽1.2～1.5m,两层旋喷桩重叠,每桩直径为800mm。根据工程需要挡土墙划分为三个区域,西区37m和东区25m范围采用双排桩,中区37m范围采用单排桩,
Reinforced high pressure jet grouting pile curtain retaining wall In recent years, using high pressure jet grouting piles to reinforce the weak foundation has been widely used in China. However, the use of reinforced high-pressure jet grouting piles to form a retaining wall as a retaining wall and water seepage prevention has no precedent for success. Shanghai Yangzi River Hotel project uses reinforced high-pressure jet-grouting piles to form a curtain retaining wall with a reinforcement depth of 10m, a length of 108m, and a width of 1.2-1.5m. The two-tier rotary jet piles overlap, each diameter being 800mm. According to the project needs, the retaining wall is divided into three areas. The double row of piles are used in the 37m in the west and 25m in the east, and the single row is used in the 37m in the middle area.