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1.室内采暖地沟盖板上没设混凝土垫层,造成地面裂缝寒冷及严寒地区有些采暖房屋底层地面下没有暗敷采暖管道地沟,由于地沟上部地面和房心地面的温差较大,地沟盖板上没设混凝上垫层,直接在板上抹1:2水泥砂浆面层;有的地沟墙下素土夯得不实,或地沟底面混凝上垫层太薄而下沉,造成地面裂缝,见图1。预防室内采暖地沟地面裂缝的措施,一是认真做好地沟内采暖管道的
1. There is no concrete cushion on the indoor heating trench cover, which causes cold cracks on the ground, and there are no underground heating pipes under the ground floor of some heating houses. Due to the large temperature difference between the floor above the ground and the floor of the room, the floor cover There is no concrete layer on the top of the concrete, and a 1:2 cement mortar surface is directly applied to the surface of the concrete; some soils on the surface of the trench may not be soiled, or the underlying surface of the trench may be too thin and sink, resulting in the ground. Cracks, see Figure 1. Measures to prevent ground cracks in indoor heating trenches are: First, seriously implement the heating pipelines in the trenches.