工程降水设计的一种新方法

One New Method for the Design of Engineering Dewatering

对目前通用的地下水动力学方法进行工程降水设计分析 ,指出其几点不足。据几年来的工程降水实践 ,提出一种工程降水的新方法———有效半径法。该方法根据四条基本原则 ,利用单井不同降深的有效半径 ,进行井距、井数的计算 ,在此基础上利用计算机进行降水方案的优化 ,从而确定出最佳方案。该方法在长春市粘性土几个降水工程中应用 ,都取得了满意的效果。

This paper puts forward the new method-efficiency radius method of the engineering dewatering in according the practice of author’s engineering lowering water level on the basis of the analysis of general groundwater dynamics methods used to the design of dewatering engineering. The method is in accordance with four basic principles, uses the efficiency radium of single well with the different drawdowns of groundwater level to calculate distances and number of wells. On the basis, the optimal of dewatering plans will be carried out by computer to determine the optimal planning. The paper carries three dewatering plans optimal programming for example of the oil bank of the garage of Changchun University of Science and Technology. In result, the second plan is determined as using plan. It is the optimal plan through practice. The method was used in several dewatering engineerings with the soil in the city of Changchun to obtain the better efficiency.