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| DOI：10.13522/j.cnki.ggps.2023253 |
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| Application Analysis of Measurement and Calculation Methods for Dredging in River Channels |
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WANG Dechuan, SU Xiuyong, XIE Shuangjun
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1. China Coal Zhejiang Surveying and Mapping Geo-information Co., Ltd, Hangzhou 310021, China;
2. Zhejiang Huadong Mapping and Engineering Safety Technology Co., Ltd, Hangzhou 310014, China;
3. Hangzhou Weidi Surveying and Mapping Co., Ltd, Hangzhou 311308, China
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| Abstract: |
| Dredging river channels is an effective means of ecological environment management and flood control and drainage. The measurement and calculation data of dredging are important basis for engineering bidding and construction budget and final settlement. There are various methods for measuring and calculating river dredging, each with its own technical characteristics, and the operational efficiency and cost investment vary greatly. Taking a certain year's river dredging project in Hangzhou as an example, different field data collection modes and internal data processing methods were listed, and the results of measurement and calculation were compared for applicability and difference analysis. The results indicated that selecting suitable dredging measurement and calculation methods based on the surrounding environment and historical data of the river could provide reliable surveying and mapping results in a timely manner, meet the planning, design, and construction needs of dredging engineering, and assisted in the comprehensive improvement of urban river channels. Analyzing and researching the measurement and calculation methods for dredging in river channels has engineering application significance. |
| Key words: river dredging; dredging volume; cross section method; triangulation method |
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