Mechanical equipment integrating foundation pit excavation support and hoisting

Abstract

The invention discloses mechanical equipment integrating foundation pit excavation support and hoisting. The mechanical equipment is used for city comprehensive pipe rack construction. Three gantry cranes are organically combined through a steel beam to form a rectangular frame, and iron plates are installed on the periphery and top. A sliding beam moves on a bearing beam to hoist a prefabricatedconcrete module into a foundation pit from the ground. Universal driving wheels are installed below column legs of the three gantry cranes. The headmost two sets of driving wheels are on the ground, the left four sets of driving wheels are in the foundation pit, the most front end of the equipment is provided with a vibration hammer, and a protection pile is driven into the position below the ground before excavation; a rotating wheel excavator bucket is adopted for continuous excavation, excavated-out mud is conveyed out through a conveying belt, an electric waste soil screen is arranged at the tail end of the conveying belt, and waste soil is screened and sorted; and finally, the rearmost crane column leg is hinged to a main body, thereby being capable of being removed together during turning.

Description

1. Technical field [0001] The invention relates to a mechanical device capable of integrating the functions of excavating the foundation pit of an underground comprehensive pipe gallery and supporting the pit wall in a closed space, and simultaneously hoisting the concrete pipe gallery module. 2. Technical background [0002] At present, the construction of conventional underground comprehensive pipe gallery adopts the construction method of excavating open trenches with excavators, manually laying retaining piles to support the pit walls, and then hoisting precast concrete modules by cranes. Conventional technology uses excavators to excavate open ditches, which affects the environment and has low work efficiency; manual laying of protective piles requires the cooperation of multiple people; crane hoisting operations require special crane parking spaces, occupying the construction site, which is not conducive to construction operations in crowded urban areas. 3. Contents o...

AI Technical Summary

Problems solved by technology

In order to realize its functions, the following problems need to be solved: 1. In order to meet the requirements of environmental protection, excavation of foundation pits needs to be carried out in a closed space, which requires the equipment to be regular in shape to install closed panels; 2. In order to reduce the construction site, it is necessary to use Gantry crane for hoisting operation; 3. In order to ensure that the equipment can move forward according to the installation progress, driving wheels need to be set; 4. In order to ensure that the prefabricated pipe gallery module can be hoisted from the ground to the foundation pit smoothly, the equipment needs to be on the ground and foundation pit at the same time. There are supporting components in the pit; 5. In order to ensure the safety of the excavation process of the foundation pit, the pile support work needs to be completed before excavation; 6. In order to increase the excavation speed, it is necessary to use the "excavation-transportation" assembly line process for excavation; 7 1. After the hoisting is completed, the excavated muck needs to be screened, and the dregs that meet the requirements should be reserved as backfill; 8. The space of the foundation pit is small, and it is inconvenient to turn the equipment. Measures need to be taken to reduce the turning radius of the equipment