Construction method for inclined frame foundation of vertical shaft: Fid-Bau Portal

Construction method for inclined frame foundation of vertical shaft

LIU XINYUN / ZHAO GUOYIN / MA LEI / WANG QINGHE / HE GUOWEI

The invention provides a vertical shaft inclined frame foundation construction method which comprises the steps that an inclined frame foundation pit slot is built at a first preset position of a vertical shaft mouth, and an inclined frame foundation is built on the inclined frame foundation pit slot; foundation reinforcing bars are built on the inclined frame foundation, and a bolt rigid frame fixedly provided with embedded bolts is fixed to a second preset position of the top end of the foundation reinforcing bars; after the position of the bolt rigid frame is adjusted, the bolt rigid frame and the foundation reinforcing bars are fixed for the second time; a foundation bearing platform is built on the inclined frame foundation according to the foundation reinforcing bars; and the vertical shaft inclined frame to be erected is fixed on the inclined surface of the foundation platform through the embedded bolts. By means of the method, the bolt rigid frame can serve as a whole to become a lofting object, overall concrete pouring is conducted after one-time lofting, the construction procedures are reduced, the calculation and measurement difficulty and errors are reduced, and the construction precision and the construction efficiency are effectively improved on the basis that the structural strength is guaranteed.

本发明提供一种竖井斜架基础施工方法，包括：在竖井井口的第一预设位置筑建斜架基础坑槽，并在所述斜架基础坑槽上筑建斜架基础；在所述斜架基础上搭建基础配筋，并将固定有预埋螺栓的螺栓刚性框架固定在所述基础配筋的顶端的第二预设位置；对所述螺栓刚性框架进行位置调整后，将所述螺栓刚性框架与所述基础配筋进行二次固定；根据所述基础配筋在所述斜架基础上筑建基础承台；通过所述预埋螺栓将待架设的竖井斜架固定在所述基础承台的斜面上。利用上述发明能够将螺栓刚性框架作为整体成为一个放样对象，一次放样后进行整体混凝土浇灌，减少施工工序，降低计算及测量的难度以及误差，在保证结构强度的基础上有效提高施工精度和施工效率。

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