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Study on Seepage Analysis and Measure about Seepage Control for the Channel’s High Slope of the Middle Route Project of Yellow River Crossing Tunnel under South-to-North Water Diversion Part on South Bank of Yellow River

Author: LiMingXin
Tutor: HuZaiQiang；WangJiangTao
School: Xi'an University of Technology
Course: Hydraulic Engineering
Keywords: The South Yellow River Project Channel high slope Seepage Analysis Seepage control measures
CLC: TV223.4
Type: Master's thesis
Year: 2008
Downloads: 63
Quote: 0
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Abstract


The south bank of the Yellow River Project of Middle Route channels to root out the side slope, soil , silty loam , loess-like channel slope maximum slope height exceeds 50m . The high water table , most of the channel bottom nearly 30m higher . Small slope loess permeability coefficient caused by the construction of deep well dewatering and free surface precipitation after a longer time to make the soil consolidation , dewatering wells to stop running after the slope soil moisture content may be supplied with significant recharge of groundwater and rainfall increases have a greater impact on the construction and running . Therefore, on the south bank of the canal slope seepage control measures . In this paper, a full analysis of the previous survey data , a detailed survey of the construction status quo based on the use of three-dimensional finite element method to calculate the different construction plans for the construction period and the descending slope of the drainage measures seepage , precipitation in the subsequent construction measures; computational analysis run different conditions and different drainage program seepage situation , and based on the results of seepage analysis , the the multiple runtime precipitation , and the technical and economic feasibility . The study results show that : the dewatering wells may occur in the long run , clogging, Lining Construction channels Next excavation process and the need to increase precipitation measures ; drainage network overhaul period of temporary strong emission from the row plus program at run in the technical and economic comparison of better is recommended ; groundwater level long-term observation is necessary .

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic investigation of hydraulic design > Foundation and its reinforcement > Seepage of hydraulic structures and impervious
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