南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2014年
1期
110-113,130
,共5页
八里湾泵站%渗透稳定%承压水%地下连续墙%排水孔%减压井%中粗砂垫层
八裏灣泵站%滲透穩定%承壓水%地下連續牆%排水孔%減壓井%中粗砂墊層
팔리만빙참%삼투은정%승압수%지하련속장%배수공%감압정%중조사점층
Baliwan pumping station%seepage stability%confined water%underground continuous w al%drainage hole%relief wells%coarse sand cushion
为了解决八里湾泵站主泵房场区潜水和承压水复杂渗流问题，采用地下连续墙围封、排水孔、水平排水管、减压井等多种渗透稳定控制措施，延长渗径，增加上游水头损失，降低下游水位。与此同时，采用三维渗流数学模型法对地基渗流场进行求解，确定了地下连续墙的深度和排水孔、排水管、减压井间距，优化了渗流控制措施方案，成功解决了泵站的设计难题。研究结果可以为平原成层地层地区泵站工程的渗流和渗控设计提供参考。
為瞭解決八裏灣泵站主泵房場區潛水和承壓水複雜滲流問題，採用地下連續牆圍封、排水孔、水平排水管、減壓井等多種滲透穩定控製措施，延長滲徑，增加上遊水頭損失，降低下遊水位。與此同時，採用三維滲流數學模型法對地基滲流場進行求解，確定瞭地下連續牆的深度和排水孔、排水管、減壓井間距，優化瞭滲流控製措施方案，成功解決瞭泵站的設計難題。研究結果可以為平原成層地層地區泵站工程的滲流和滲控設計提供參攷。
위료해결팔리만빙참주빙방장구잠수화승압수복잡삼류문제，채용지하련속장위봉、배수공、수평배수관、감압정등다충삼투은정공제조시，연장삼경，증가상유수두손실，강저하유수위。여차동시，채용삼유삼류수학모형법대지기삼류장진행구해，학정료지하련속장적심도화배수공、배수관、감압정간거，우화료삼류공제조시방안，성공해결료빙참적설계난제。연구결과가이위평원성층지층지구빙참공정적삼류화삼공설계제공삼고。
In order to resolve the complex seepage problem of the unconfined and confined aquifers in the Baliwan pumping sta-tion, several seepage stabilit y control measures, such as underground cont inuous w al , drainage holes, horizontal drainage pipes, and relief wells, w ere applied to extend the seepage path, increase upstream head loss, and decrease dow nstream w ater level. T he seepage field of the ground foundation was obtained using the three-dimensional seepage mathemat ical model, and the depth of underground continuous w al and the spacing of drainage holes, horizontal drainage pipes, and relief wells were also determined, which can optimize t he seepage control measures. Therefore, the design difficult y of pumping stations w as solved. T he research results can provide reference for the seepage control design of pumping stations in the layered strata area in the plains.
