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在挖河疏浚工程中,如不适当解决排水问题,会给施工带来了很多困难,尤其是在冬季困难更多。我们在去冬今春大干河网化工程中,根据各种不同的施工条件,创造出一套施工辨水的经验,一般采取有以下三种排水方法:(1)滚龙沟自流排水法,适用于下游有排水出路老河槽深于新河底。在界南河杨桥施工团全部采用这一个方法,用倒比降自流排入泉河,优点是节省劳力和提水工具,如附图(1)
Dredging dredging project, if not properly solve the drainage problems, will bring a lot of construction difficulties, especially in winter more difficult. In the winter and spring of the Dakan River Network Engineering, we have created a set of experience in water diversion according to various construction conditions. Generally, we have the following three drainage methods: (1) Applies to the downstream drainage channel Laohe deep in the new river bottom. In the boundary river Yangqiao construction group all adopt this one method, with inverted downfall into the spring river, the advantage is to save labor and water lifting tools, as shown in Figure (1)