水科学与工程技术
水科學與工程技術
수과학여공정기술
Water Sciences and Engineering Technology
2015年
5期
72-75
,共4页
水库%边坡%安全系数%覆盖层%位移%抗滑桩
水庫%邊坡%安全繫數%覆蓋層%位移%抗滑樁
수고%변파%안전계수%복개층%위이%항활장
reservoir%slope%safety factor%overburden%displacement%anti-slide pile
为保障边坡开挖工程的施工安全，以大中河水库引水工程建设为背景，采用有限元法对边坡覆盖层的开挖和加固过程进行模拟分析，结果表明：自然状态下，边坡表面覆盖层有滑动的可能，表层开挖后稳定性虽得到一定提升，但发生较大位移。边坡加固后，位移得到有效控制，稳定性进一步提高。该文对不同工况下的边坡危险滑裂面计算了抗滑桩的最优抗弯刚度为1600kN/m。结果对大中河水库引水工程边坡的稳定性评估和加固材料的选取有一定参考价值。
為保障邊坡開挖工程的施工安全，以大中河水庫引水工程建設為揹景，採用有限元法對邊坡覆蓋層的開挖和加固過程進行模擬分析，結果錶明：自然狀態下，邊坡錶麵覆蓋層有滑動的可能，錶層開挖後穩定性雖得到一定提升，但髮生較大位移。邊坡加固後，位移得到有效控製，穩定性進一步提高。該文對不同工況下的邊坡危險滑裂麵計算瞭抗滑樁的最優抗彎剛度為1600kN/m。結果對大中河水庫引水工程邊坡的穩定性評估和加固材料的選取有一定參攷價值。
위보장변파개알공정적시공안전，이대중하수고인수공정건설위배경，채용유한원법대변파복개층적개알화가고과정진행모의분석，결과표명：자연상태하，변파표면복개층유활동적가능，표층개알후은정성수득도일정제승，단발생교대위이。변파가고후，위이득도유효공제，은정성진일보제고。해문대불동공황하적변파위험활렬면계산료항활장적최우항만강도위1600kN/m。결과대대중하수고인수공정변파적은정성평고화가고재료적선취유일정삼고개치。
In order to protect the safety of slope excavation engineering,take Dazhonghe River Reservoir diversion project as the background, finite element method was used to analyze the overburden excavation and slope support process, and the results showed that: during natural state, the overburden may slip and after excavation slope stability improved, but with larger displacement, after supporting displacement has been effectively controlled, and improve the slope stability;under different conditions, slope slipping surface is not the same; and determine the reinforcement material optimal bending stiffness is 1600kN/m. The results could provide some reference for stability assessment of the slope and the materials selection of reinforcement.
