大坝与安全
大壩與安全
대패여안전
LARGE DAM & SAFETY
2014年
5期
45-50,54
,共7页
沥青混凝土心墙%渗漏%物探检测%反演分析%灌浆%混凝土防渗墙
瀝青混凝土心牆%滲漏%物探檢測%反縯分析%灌漿%混凝土防滲牆
력청혼응토심장%삼루%물탐검측%반연분석%관장%혼응토방삼장
asphalt concrete core wall%seepage%geophysical detection%inversion analysis%grouting%concrete diaphragm wall
大竹河水库大坝为碾压沥青混凝土心墙石渣坝，水库蓄水过程中坝体渗漏量偏大、浸润线偏高。蓄水至1212.2 m时，下游坝坡高程1182~1185 m出现平行坝轴线的散浸带，并在局部形成流淌状。鉴于水库大坝渗漏问题严重，采取物探检测、连通试验以及对坝体渗漏进行反演计算，结合坝体安全监测资料综合分析，得出坝体沥青混凝土心墙存在渗漏；针对坝体结构特点，对大坝渗漏处理方案进行分析研究后，从有效、可靠、安全、经济等综合分析比选，推荐混凝土防渗墙方案，此工程的渗漏分析及处理方案研究成果可为类似病险工程提供参考和借鉴。
大竹河水庫大壩為碾壓瀝青混凝土心牆石渣壩，水庫蓄水過程中壩體滲漏量偏大、浸潤線偏高。蓄水至1212.2 m時，下遊壩坡高程1182~1185 m齣現平行壩軸線的散浸帶，併在跼部形成流淌狀。鑒于水庫大壩滲漏問題嚴重，採取物探檢測、連通試驗以及對壩體滲漏進行反縯計算，結閤壩體安全鑑測資料綜閤分析，得齣壩體瀝青混凝土心牆存在滲漏；針對壩體結構特點，對大壩滲漏處理方案進行分析研究後，從有效、可靠、安全、經濟等綜閤分析比選，推薦混凝土防滲牆方案，此工程的滲漏分析及處理方案研究成果可為類似病險工程提供參攷和藉鑒。
대죽하수고대패위년압력청혼응토심장석사패，수고축수과정중패체삼루량편대、침윤선편고。축수지1212.2 m시，하유패파고정1182~1185 m출현평행패축선적산침대，병재국부형성류창상。감우수고대패삼루문제엄중，채취물탐검측、련통시험이급대패체삼루진행반연계산，결합패체안전감측자료종합분석，득출패체력청혼응토심장존재삼루；침대패체결구특점，대대패삼루처리방안진행분석연구후，종유효、가고、안전、경제등종합분석비선，추천혼응토방삼장방안，차공정적삼루분석급처리방안연구성과가위유사병험공정제공삼고화차감。
Dazhu-River dam is a rolled asphalt concrete core dam. Its leakage was larger and the satura?tion line was higher than normal value in the process of impoundment. When the water level reached 1 212.2 m, spreading soaking band parallel to the dam axis in elevation 1 182~1 185 m occurred on the surface of the downstream slope, and part of the band was flowing. Since the seepage was serious, geo?physical testing, connectivity testing and inversion calculation were used to analyze the reasons of seep?age. Combined with comprehensive analysis of safety monitoring data, we have found that the asphalt concrete core wall was leaking. According to the structural characteristics of the dam, considering the as?pects such as effectiveness, reliability, safety and economy, the paper analyzed several schemes of seep?age treatment and recommended a rational one, for reference.
