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| DOI：10.13522/j.cnki.ggps.20180113 |
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| Determining the Sectional Shape of in-situ Casted Concrete Drain Pipe Based on Numerical Simulations |
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XU Yi， ZHAO Gang， WANG Maomei， ZHU Dadong， JIANG Baohua
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1.Hydraulic Resarch Insititue of Jiangsu Province, Nanjing 210017, China；2. Nantong Silt Dredging Machinery Co.，Ltd., Nantong 226404, China
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| Abstract: |
| 【Objective】 The purpose of this paper is to examine the effect of cross sectional shape of concrete drain pipeline casted in-situ on its bearing capacity. 【Method】 We used the ANSYS software to simulate and analyze the bearing capability of a vertical elliptical drain pipe under designed load, and compared it with the bearing capability of a circular pipe with the same cross-sectional area. 【Result】 Vertical elliptical covered concrete pipeline with long and short axle ratios of about 1.3 could be in normal use under various design load conditions; The strength safety factor of vertical elliptical covered concrete pipeline with the same cross-section area increased by about 83% in non-irrigation period and by about 41% in irrigation period. 【Conclusion】 It is rational and feasible to use the vertical elliptical section in in-situ casting concrete drain pipeline, and it improves the bearing capacity compared to the circular ones. |
| Key words: concrete drain pipeline; types of cross section; numerical simulation |
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