人民长江
人民長江
인민장강
Yangtze River
2015年
20期
80-83
,共4页
接触性黏土料%碾压%试验%观音岩水电站
接觸性黏土料%碾壓%試驗%觀音巖水電站
접촉성점토료%년압%시험%관음암수전참
clay material%rolling compaction%test%Guanyinyan Hydropower Station
云南观音岩水电站大坝为黏土心墙堆石坝，为了检验设计合同提供的料场土料是否满足设计要求，进行了土料试验。主要试验内容包括：土料密度、天然含水率、最大干密度、液限指数、塑性指数、颗粒组成、击实度以及碾压工艺等。试验结果表明，该料场土料在铺厚为25 cm和30 cm时，分别碾压8和10遍，碾压效果俱能满足设计要求。综合考虑，推荐采用装载机碾压，碾压行进速度不大于2 km／h，铺料厚度为30 cm。
雲南觀音巖水電站大壩為黏土心牆堆石壩，為瞭檢驗設計閤同提供的料場土料是否滿足設計要求，進行瞭土料試驗。主要試驗內容包括：土料密度、天然含水率、最大榦密度、液限指數、塑性指數、顆粒組成、擊實度以及碾壓工藝等。試驗結果錶明，該料場土料在鋪厚為25 cm和30 cm時，分彆碾壓8和10遍，碾壓效果俱能滿足設計要求。綜閤攷慮，推薦採用裝載機碾壓，碾壓行進速度不大于2 km／h，鋪料厚度為30 cm。
운남관음암수전참대패위점토심장퇴석패，위료검험설계합동제공적료장토료시부만족설계요구，진행료토료시험。주요시험내용포괄：토료밀도、천연함수솔、최대간밀도、액한지수、소성지수、과립조성、격실도이급년압공예등。시험결과표명，해료장토료재포후위25 cm화30 cm시，분별년압8화10편，년압효과구능만족설계요구。종합고필，추천채용장재궤년압，년압행진속도불대우2 km／h，포료후도위30 cm。
The dam of Guanyinyan Hydropower Station in Yunnan Province is a rockfill one with clay core .To check whether the quality of soil source in the material field according to the contract meets the requirement , the test study on soil material was carried out.The main test contents included the soil density , natural water content , the maximum dry density , liquid limit index, plasticity index , granular composition , compaction degree and rolling compaction technology etc .The results show that the rolling effect of 8 and 10-time rolling compaction for the spreading soil material with the thickness of 25 cm and 30 cm can meet the de-sign demand .By comprehensive consideration , the loader was recommended for rolling compaction with the rolling speed less than 2 km/h and soil spread thickness of 30 cm.
