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厦门怡山商业中心共5层地下室,采用逆作法施工。根据现场场地狭窄等情况,开创性采用一层半一逆作的施工技术,即中间部分土方开挖深度为2层,四周土方开挖为1层,形成一层半一逆作的盆式土方开挖方法。详细介绍了复杂条件下地下连续墙、大直径逆作板墙深井扩底灌注桩、一层半一逆作、储土区域设专用提土设备及一个接力转土出土相结合、管网降压抗浮排水等关键技术,取得了良好的经济技术效益。
Xiamen Yishan Commercial Center, a total of 5 basements, the use of reverse construction. According to the scene of the site is narrow and so on, pioneering the use of a half-inverted construction technology, that is, the middle part of the earth excavation depth of 2 layers, earth excavation around the four layers to form a layer of semi-inverted pots earthwork Excavation method. This paper introduces in detail the underground continuous wall under complex conditions, the large diameter counter-sluice-wall deep well expanded bottom bored pile, the combination of one-half and one-in-the-reverse operation, the special earth-lifting equipment in the soil area and the unearthed one earth- Anti-floating drainage and other key technologies, and achieved good economic and technological benefits.