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

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 ;