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近九年来,我们黑龙江省水利第四工程处参加了治理三江平原七星河干河开挖工程。在施工过程中,对于沼泽地段土方开挖工程的施工排水,摸索了一些施工方法,实践证明,切实可行。下面简要谈谈我们的粗浅体会。七星河位于三江平原腹地,沿河流域地质结构表层为沼泽土,均由草根、泥炭和泥炭腐泥质土组成,厚度一般为50～100厘米。
In the past nine years, we Heilongjiang Province Water Resources Fourth Engineering Department participated in the management of Sanxing Plain Qixinghe dry river excavation project. During the construction process, some construction methods have been explored for the construction drainage of the earthwork excavation in the swampy area, and the practice has proved that it is feasible. The following brief talk about our superficial experience. Qixinghe is located in the hinterland of the Sanjiang Plain. The geological structure of the river basin is swamp soil, which is composed of grass roots, peat and peat sap, with a thickness of 50-100 cm.