Abstract: Following the principle of organically combining earth-fill reclamation with bank protection, the protective technology of the reservoir bank is explored, which is of important practical significance to beautify and improve the urban function as well as increase the urban land. Taking the Ningjiangdao general harness project of Wushan in Three Gorges Reservoir area as an example, the bank protective technology with the consideration of reclamation is proposed and applied to earth-fill reclamation about 100 Mu. This technology consists of several elements, such as the reservoir bank foundation treatment, riprap protection, rockfill dam, rolled backfill soil, slope surface protection and gravity retaining wall. The stability under different conditions is analyzed, and the conclusion that taking dead weight and water level fall from 175m to 145m as the control condition is reasonable is drawn. The subentry design of design approach is explicated in detail. The quality control of earth-fill compaction problem is also explored. Research results show that the area of 3m on the surface of slope is usually the un-compacted area. Partial collapses always occur in the period of water level falling and the potential danger of crack exists. Thus the structure of protective slope and the grouting treatment method arc proposed.

Key words: geotechnical engineering , bank protection , earth-fill reclamation , the comprehensive harness project of Ningjiangdao in Wushan ;

摘要： 遵循填土造地与岸坡防护有机结合的原则,探索考虑造地功能的水库岸坡防护技术,对于美化、完善城 市功能、适当增加城市用地,具有重要的现实意义。以三峡库区巫山宁江岛综合整治工程为例,提出了考虑造地功 能的水库岸坡防护技术,为基础处理及抛石护脚+堆石坝+碾压回填土+坡面防护+重力式挡土墙,进行了不 同工况的稳定性分析,发现将??自重+库水位从175~145m降落工况作为防护工程控制工况是合理的;详细论 述了防护工程设计方案的分项设计;探讨了此类工程建设中填土压实质量控制问题,指出边坡表层3m左右区域 通常是欠压实区,在水位降落期间存在局部滑塌、坍塌破坏的安全隐患,提出了护坡结构及马道开裂的注浆处治思 路。

关键词: 岩土工程, 库岸防护, 填土造地, 巫山宁江岛综合整治工程