Application Of Reinforced Concrete Bored Piles And High Pressure Jet Piles In Deep Excavation

In recent years, along with the building of underground buildings, deep foundationpit engineering has increased rapidly. Because of the uncertainty of the constructionsite engineering geological conditions, the design method of foundation pit supportingdesign method is not very mature, construction management is often not enoughspecification, so the foundation pit engineering accidents have occurred, which causedhuge losses of economy to the society.On the basis of predecessors research proof, the paper used the geologicalconditions of Handan city formation, with the quaternary recently deposited soil,general sedimentary soil and shallow depth of underground water level. From thefoundation pit supporting and draining the two main aspects, this paper mainlyexpounded methods, requirements and principles of a combination of the reinforcedconcrete bored piles and the high pressure jet grouting pile, which can retain the waterand support. And combined with practical engineering, the paper selected the schemesof combination of filling pile and jet grouting pile, then carried on the design andcalculation, and the LIZHENG software analysed and validated foundation pit. Fromthe aspect of safety, the feasibility of the design, the rationality of the construction, thispaper researched high pressure jet grouting pile and reinforced concrete piles, In orderto reduce the number of foundation pit engineering accidents and for Handan city andhave a similar situation with the area to provide reference in foundation pit supportingoption.