水利科技与经济
水利科技與經濟
수리과기여경제
Water Conservancy Science and Technology and Economy
2015年
10期
48-51
,共4页
水闸%裂缝%渗流场%影响性
水閘%裂縫%滲流場%影響性
수갑%렬봉%삼류장%영향성
sluice%crack%seepage field%influence
以小型挡水闸为研究对象,结合工程实例,针对小型水闸上游铺盖不同部位出现裂缝时,闸基的渗透坡降、总水头以及渗流量等因素进行了统计分析. 当上游铺盖裂缝距离闸室越近时,闸基渗流入口及渗流出口处的渗透坡降值越大,相应的总水头递减速率越大,水头变化波动性也相对较大,对应工况的闸基渗漏量越大. 结果表明,水闸上游铺盖的裂缝位置距离闸室越近,对闸基的渗流稳定性越不利.
以小型擋水閘為研究對象,結閤工程實例,針對小型水閘上遊鋪蓋不同部位齣現裂縫時,閘基的滲透坡降、總水頭以及滲流量等因素進行瞭統計分析. 噹上遊鋪蓋裂縫距離閘室越近時,閘基滲流入口及滲流齣口處的滲透坡降值越大,相應的總水頭遞減速率越大,水頭變化波動性也相對較大,對應工況的閘基滲漏量越大. 結果錶明,水閘上遊鋪蓋的裂縫位置距離閘室越近,對閘基的滲流穩定性越不利.
이소형당수갑위연구대상,결합공정실례,침대소형수갑상유포개불동부위출현렬봉시,갑기적삼투파강、총수두이급삼류량등인소진행료통계분석. 당상유포개렬봉거리갑실월근시,갑기삼류입구급삼류출구처적삼투파강치월대,상응적총수두체감속솔월대,수두변화파동성야상대교대,대응공황적갑기삼루량월대. 결과표명,수갑상유포개적렬봉위치거리갑실월근,대갑기적삼류은정성월불리.
This paper takes the small sluice as the research object .An analysis of the cracks was made combining with the engineering examples , which will appeared at different parts of the small sluice′s blanket.And the results were analyzed with statistics , which include the seepage gradient , total head and seepage flow .The results show that the seepage gradient at the entrance and outlet will be larger when the blanket crack is close to chamber .And the total head′s decreasing rate together with the seepage flow will be changed in the same situation .
