Abstract
This paper adopts finite element software to carry out structure design and force analysis for Machetang wire nets concrete inverted siphon engineering. Researching distribution laws of stress and deformation for inverted siphon's typical sections and paths under various cases in construction and operating process. Research results provide reliable theory references for safe operation of Machetang wire nets concrete inverted siphon engineering. Project summary Machetang inverted siphon engineering is located east main canal of Baifeng reservoir irrigation, which is located Yiwu county in Zhejiang province. Inverted siphon engineering distances upstream of the canal is 9.5km, the basin area that is controlled by inverted siphon engineering is 16000 mu. The engineering adopts bridge-type inverted siphon structure form, inverted siphon is precast wire nets concrete pipe structure, concrete strength grade of inverted siphon is C30. Juncture of inverted siphon adopts socket type joint, rubber ring sealing is adopted. Inverted siphon's flow rate is 1.1m 3 /s, flow velocity is 2.14m/s, roughness is 0.012, inner diameter of reinforced concrete pipe is 0.8 m, wall thickness is 0.1 m. Inverted siphon's overall length is 155.3m, head loss is 1.5m. Inverted siphon's minimum level is 16.5m, design level is 21m, maximum level is 22.4m.
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