Construction method of enclosure system shared by cast-in-place pipe gallery and box type tunnel

Abstract

The invention relates to a construction method of an enclosure system shared by a cast-in-place pipe gallery and a box type tunnel. The construction method comprises the steps that construction preparation is conducted; constructing a shared enclosure wall; and wall toe grouting. The method has the beneficial effects that the square hammer is adopted for finishing the underground diaphragm wall construction groove wall, and the construction quality of the underground diaphragm wall and the stability of the groove wall are improved; the cutting blade is rotated and folded towards the side of the underground diaphragm wall groove wall finishing square hammer through the rotating shaft under the influence of factors such as slurry in the descending process of the square hammer, and is rotated and unfolded towards the outer side of the square hammer in the lifting process of the underground diaphragm wall groove wall finishing square hammer, so that the effect of cutting and finishing the groove wall is achieved; the trimming quality of the groove wall can be effectively improved through the blades arranged in multiple rows; in order to ensure that the underground diaphragm wall is stable and does not settle, after the underground diaphragm wall reaches the design strength, grouting reinforcement is conducted on wall toes of the underground wall; and a plurality of pull rods are arranged between the steel pipe supports on the two sides at the tops of the wooden supports on the two sides, so that the overall mold quality is improved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a construction method of a common enclosure system of a cast-in-place pipe gallery and a box tunnel. Background technique [0002] Underground integrated pipe gallery, this economical new environmental protection pipeline construction mode, can effectively solve pipeline layout and safety problems, avoid repeated excavation of roads, realize intensive development of underground space resources, and meet the needs of urban infrastructure modernization. [0003] Due to the influence of various objective conditions, adjacent projects are often constructed in the same period in urban construction, which in turn leads to the emergence of adjacent foundation pits. Due to the constraints and controls of various factors such as construction period, site layout, and project management in engineering construction, adjacent foundation pits usually cannot be combine...

AI Technical Summary

Problems solved by technology

If adjacent deep foundation pits only carry out the design work of the foundation pit enclosure structure separately, not only will the space and force between the enclosure structures have a negative impact on the stability of the structure, but it will also increase virtually. project input cost

Images