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针对基坑降水方案确定过程中的计算问题,参考相关技术手册及资料,总结了其主要计算步骤。基于VB程序设计方法,编写可视化程序,实现不同井位、抽水量、井结构条件下,基坑范围内水位变化预报。结合北京某大厦基坑调查的实际数据,对基坑工程的降水方案进行了设计计算,获得了井点数量及间距、布井方式等对施工有指导意义的数据,同时,对人工降水对周围水环境的影响进行了预测。结果表明:通过人机交互系统,可方便快速地确定合理的降水实施方案,为安全施工提供可靠依据。
Aiming at the calculation of foundation pit dewatering scheme determination process, and referring to relevant technical manuals and data, the main calculation steps are summarized. Based on the programming method of VB, the visualization program is programmed to predict the change of water level within the foundation pit under different well positions, pumping amount and well structure. Combined with the actual data of foundation pit survey in a building in Beijing, the design and calculation of the precipitation scheme of foundation pit project were carried out, and the data of guiding points such as the number and spacing of well points and well drilling pattern were obtained. At the same time, The impact of water environment was predicted. The results show that: through human-computer interaction system, a reasonable implementation scheme of precipitation can be determined quickly and conveniently, providing a reliable basis for safe construction.