Method for preventing muck from being accumulated on upper surface of foundation pit supporting beam

Abstract

The invention discloses a method for preventing muck from being accumulated on the upper surface of a foundation pit supporting beam. According to the method, the supporting beam is included, muck sliding devices are arranged at the positions, close to the inner edge of a foundation pit, of the two ends of the supporting beam, each muck sliding device comprises a plurality of annular hoops arranged in the circumferential direction of the supporting beam, annular sliding ways are arranged on the outer circumferential end faces of the hoops, the end faces of the outer circumference of the sliding ways abut against the inner walls of circular sleeves, the hoops, the sliding ways and the sleeves are each composed of two semi-annular structures, a plurality of sets of corresponding side lugs are arranged at the ends of the two semi-annular structures of the sleeves, when the muck falls on the sleeves, the muck is unevenly distributed on the sleeve and generates rotation driving force on the supporting beam under different gravity effects, the sleeves are driven to automatically rotate around the supporting beam, no muck is accumulated on the supporting beam, manual cleaning is not needed any more, manpower for cleaning the muck on a steel support can be saved, and the situation that the excavation progress of the foundation pit is affected by cleaning the steel support is avoided, so that good economic benefits and social benefits are generated.

Description

Technical field: [0001] The present invention belongs to the field of deep base pit construction, mainly involved in preventing the surface area of ​​the surface area of ​​the foundation pit. Background technique: [0002] With the rapid development of the city, the development of urban underground space is increasingly attached importance, and the deep foundation pit project is increasingly widely used in urban construction. In the construction of deep base pit, the support structure of the enclosure structure is essential. Especially the steel pipe support structure is in a wide range of applications with its fast, performance stable, and can be used in turnover. In actual construction, deep base pits often have multiple supports, concrete support and steel structures support two kinds, and the slag soil in the excavation process falls off the surface of the support beam and accumulates it. Clean up, on the one hand, when the staff in the bottom of the foundation pit, the poten...

AI Technical Summary

Problems solved by technology

In actual construction, deep foundation pits often have multiple supports, including concrete supports and steel structure supports. During the excavation process, it is inevitable that slag will fall on the upper surface of the support beam and accumulate on it. Cleaning, on the one hand, when the later workers are constructing the lower part of the foundation pit, the soil clods accumulated on the support beams may fall, and there is a risk of injuring the construction personnel; on the other hand, there is soil accumulation on the support beams, which is not in line with civilization Construction requirements. Furthermore, if the supporting beam is made of steel structure, it will be composed of multiple steel structure supporting beams spliced ​​through connecting flanges. If there is soil accumulation on the supporting beam, it may affect the stability of the entire supporting beam.

Therefore, during the construction process, on-site personnel are required to regularly clean up the muck. Because the support is in a suspended position, muck cleaning often requires high-altitude operations, which threatens the safety of operators and affects the normal excavation of foundation pits.

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