Impact Assessment on the Safety of Surrounding Buildings Due to Construction of Pit Support and Pile Foundations
With the acceleration of urbanization,pit excavation projects and pile foundation engineering have been widely used.Determin-ing the safety impact of construction on surrounding buildings has gradually become an important issue.Employs numerical calculation soft-ware such as MIDAS/GTS to simulate the entire process of pit excavation and manual drilling pile construction,assessing the deformation impacts on surrounding buildings caused by construction.The results show that during the excavation and pile construction of this project,the maximum horizontal deformation of the support structures calculated by traditional theory and numerical simulation were 12.89 mm and 10.43 mm,respectively,both meeting the regulatory requirement of 30 mm,confirming that the support scheme is reasonable and feasible.The maximum horizontal displacement of the northern tower in the west area was 5.43 mm,the maximum interlayer horizontal displacement was 0.174 mm,the maximum vertical displacement was 2.15 mm,and the maximum inclination rate was 0.0063%,all within regulatory limits.The maximum horizontal displacement of the farmhouse on the north side was 1.40 mm,the maximum vertical displacement was 11.21 mm,and the maximum inclination rate was 0.002 1%,all within a safe and controllable range.Excavation and pile construction impact surrounding buildings,but the effects are controllable and the deformations are minor.The findings provide theoretical support for assessing safety risks to buildings near urban pit support and pile foundation projects,and are of significant reference value for similar construction projects.
pit supportpile foundation engineeringsurrounding buildingssafety impact
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