CAJ | 학술논문

基坑降水在基坑施工中有着重要的地位，一般降水方案偏于保守，基坑总涌水量偏大。在确保基坑安全的前提下，为了降低基坑降水的总涌水量，节省基坑降水费用，基于目标函数法，以单井出水量为设计变量，以各个控制点水位降深的最大值最小化为目标函数，运用 MATLAB 软件最大最小化进行优化求解。通过沈阳世茂五里河 T3-T5及 S3楼深基坑降水工程，将优化结果与原设计方案进行对比分析。结果显示：优化后基坑总涌水量比原设计方案降低了4．7％；控制点水位降深满足设计要求，水位降深相比原方案减小了5．3％。该模型能够有效地减小基坑降水对周围环境的影响，降低基坑总涌水量。
기갱강수재기갱시공중유착중요적지위，일반강수방안편우보수，기갱총용수량편대。재학보기갱안전적전제하，위료강저기갱강수적총용수량，절성기갱강수비용，기우목표함수법，이단정출수량위설계변량，이각개공제점수위강심적최대치최소화위목표함수，운용 MATLAB 연건최대최소화진행우화구해。통과침양세무오리하 T3-T5급 S3루심기갱강수공정，장우화결과여원설계방안진행대비분석。결과현시：우화후기갱총용수량비원설계방안강저료4．7％；공제점수위강심만족설계요구，수위강심상비원방안감소료5．3％。해모형능구유효지감소기갱강수대주위배경적영향，강저기갱총용수량。
Foundation pit dewatering has an important role in the pit construction ,and general dewatering scheme is con-servative ,so the total water yield is relatively large .In the premise of ensuring the safety of foundation pit ,in order to reduce the total water yield and save dewatering costs ,based on the objective function method ,taking single well water yield as the design variables ,and setting up the the minimization of the maximum valve of control points drawdown as the objective fanction ,the MATLAB software is used to obtain the optimal solution .Taking Shimao Wulihe T3 - T5 and S3 foundation pit dewatering in Shenyang for example ,the comparative analysis is conducted between the optimization and o-riginal design .The optimal results show that compared with the original design ,the total water yield after optimizaton is reduced by 4 .7% comparatively ,and the drawdown of control points could meet the design requirements with the optimal drawdown reducing by 5 .3% .The model will decrease both the impact of dewatering on the surroundings and the total water yield ,so it is economical and reasonable .