采用混凝土灌注桩挡土护坡,与钢板桩相比,具有工程造价低,节约钢材,施工噪音小等优点。深圳国际商业中心地下车库是深圳地区首次大规模采用护坡桩挡土的工程,本工程基坑开挖原设计采用钢板桩,后改为混凝土护坡桩。仅此方案的改变使工程造价降低了73万元人民币,同时由于护坡桩的长期性,减小了原设计地下车库外墙的厚度,又使工程造价降低了22万元。 The use of concrete cast-in-place piles for soil protection and slope protection, compared with steel sheet piles, has the advantages of low construction cost, saving of steel materials, and low construction noise. The underground parking garage of the Shenzhen International Business Center is the first large-scale project to use the slope protection piles in the Shenzhen area. The original design of the excavation of the project used steel sheet piles and was later replaced by concrete slope protection piles. Only this change in the program has reduced the project cost by 730,000 yuan. At the same time, due to the long-term nature of the slope protection piles, the thickness of the original design underground garage was reduced, and the project cost was reduced by 220,000 yuan.