The Design Of Strengthening Shahu Mountain Reservoirs

Instructor:professor Liang Xiujuan associate Professor Wang Zhongcheng,In Shahu Ling reservoir reinforcement preliminary design by calculating andcombining the actual situation of the research. Reservoir dam control basin area of0.85km2, stream length1.375km. The average slope of river is6.55%and check floodlevel296.07m, design flood a295.82m normal water295.02m, dead water level283.95m, with a total capacity of (check flood level below)44.68million mm3, thenormal storage37.30million m3, dead storage capacity of20000m3, check peak flow(P=0.33%)8.13m3/s, check discharge10.65m3/s and check flood total19.78millionm3, the design peak flow P=3.33%)5.68m3/s, design discharge3.25m3/s, total designflood13.33million m3. Because there was a leakage in the reservoir, and the dambody adopted geotechnical membrane+concrete anti-seepage wall of theanti-seepage, upstream dam slope check flood level to death level with geomembraneanti-seepage, dead water level to the bedrock with concrete cut-off wall. Theimpervious layer of bedrock to bedrock is treated by curtain grouting.. In the materialtransfer department, the joint is treated, the curtain grouting is extending to a relativewater separation layer between the two dam shoulders.. According to the original damcrest elevation297.60m, the maximum dam height of17m, crest width3.0m and damaxis75m length, spillway width2.3m, allowing maximum discharge14.6m3/s,cochlear duct drainage tube size2.2x33m, drain hole size diameter0.2m andirrigation culverts import floor elevation283.95m, size (diameter)0.4m*0.6m anddata, carries on the transformation to the gate type, by the original export drum typechanged to import inclined pull type, opening and closing device and the opening andclosing force (winch5T). Through the calculation of the construction organizationdesign, the project total duration of5months, the preparation for construction periodof one month, project construction period of3months, mop up to build a month.