加筋水泥土搅拌桩在长江堤防中的应用

湖北省咸宁市邱家湾护岸段是老险工段,岸坡工程地质条件差,近年多处发生滑塌,严重影响堤防安全,经研究分析,滑塌体治理方案应用了加筋水泥土搅拌桩新技术,该方法技术先进,比钻孔灌注桩方案经济.加筋水泥土搅拌桩多应用于工民建基坑支护及房屋地基加固中,在近年实施的堤防隐蔽工程建设中常采用多头或单头水泥土搅拌桩组成连续结构,用于堤身和堤基的防渗措施中,但采用加筋水泥土搅拌群桩作为受力结构使用,对长江堤防岸坡滑塌体进行整治尚属首次,经分析,其技术上是可行的,施工也比混凝土钻孔灌注桩方案方便,邱家湾其它3个滑塌体的治理均采用该方法进行了整治.工程直接费比混凝土钻孔灌注桩方案节省投资197万元.

Construction design of TGP''''s powerhouse on left bank

The left bank powerhouse of TGP is a dam toe one, with 14 generator units, each with 700 MW and total capacity of 9800 MW. The commissioning of the left bank station on schedule will bring about great economic benefit. The TGP's left bank powerhouse characterizes large scale, complicated construction procedure and intense construction period, so the deliberate construction design is a prerequisite condition to guarantee that the construction proceeds smoothly and the power house be put into operation on schedule. Up to the end of 2000, the construction progress of the left bank powerhouse was slightly behind the designed schedule, therefore, the design department suggested some measures to speed up the construction progress. With the effort of all aspects, the construction proceeds smoothly, it is predicted that the object of the first generator unit's commissioning in 2003 can be reached successfully.