论文部分内容阅读
一、概况: 1986年我们施工的齐铁工程一处11、12住宅楼,建筑面积为8170平方米,工期一年。11、12住宅楼基础开挖时,有大量的原有住宅条形素混凝土基础,必须清除掉。其较大的有620～800mm宽,1800mm～2000mm高,计600m~3。基础虽然没有钢筋,但强度仍然较高。如采用人工凿除,劳动强度大,效率低,势必影响工期,采用常规炸药爆破方法施工,将产生很大的振动声,同时产生大量飞石、粉末,施工操作又不安全,周围环境污染,在人群密集的居
I. Overview: In 1986, we constructed a 11- and 12-storey residential building in the Qitie project with a construction area of 8,170 square meters and a construction period of one year. 11.12 When the foundation of a residential building is excavated, there are a large number of existing original residential strip concrete foundations that must be removed. The larger ones are 620-800mm wide, 1800mm-2000mm high, and 600m~3. Although the base is not reinforced, the strength is still high. If artificial chiseling is used, the labor intensity is large and the efficiency is low, which will inevitably affect the construction period. Using the conventional explosive blasting method, it will generate a lot of vibration sound, and at the same time, a large amount of flying stones and powders will be produced, the construction operation will be insecure, and the surrounding environment will be polluted. In dense crowds