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Vacuum Preloading Treatment Application of Hydraulic Fill

Author: WanJianJun
Tutor: LiPanWu；YangZhenPing
School: Chang'an University
Course: Architecture and Civil Engineering
Keywords: Vacuum combined with surcharge preloading method Dredger fill Numerical Simulation Consolidation FLAC3D
CLC: TU472.33
Type: Master's thesis
Year: 2010
Downloads: 168
Quote: 1
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Abstract


With the rapid economic development of the coastal cities , a lot of work in Hong Kong , seawall construction , a lot of Reclamation land engineering gradually expand in recent years, with the rapid development the industrial strategy eastward shift in Tianjin Binhai New Area , land resources has become an constraints of sustainable development , and therefore the use of coastal beach reclamation from the sea to land reclamation works to ease the lack of land resources and rapid economic development of the conflict , has become one of the most important project development and utilization of the the shoals resource development of the marine economy . A lot of land reclamation , land reclamation is undoubtedly one of the most effective of the many ways in cost , and shorten the duration . Vacuum preloading of the land reclamation project in Tianjin Nangang Industrial Zone, an engineering background , according to the Tianjin Port and Tanggu Binhai a lot of years of accumulated experience in ground treatment works , sludge in the original soft soil below the original soil surface , mucky soil and dredger fill the saturated cohesive venues , after using vertical plastic drainage board set up to fight in the soft soil , vacuum preloading soft soil reaches drainage consolidation effect , the elimination of settlement , thereby enhancing the soft soil strength is more economical and reasonable ground treatment program . In this paper, analysis of vacuum preloading and vacuum joint preloading reinforce the practical significance of the land reclamation works of engineering , engineering survey data , analyze the venue soil engineering properties , and calculated its settlement of the land reclamation project foundation settlement calculations, the study of vacuum preloading mechanism and reinforcement effect of the applicable conditions of vacuum preloading . Based on Biot consolidation theory , the basic equations of summarize vacuum preloading Ground Consolidation , describes the basic process of using the finite element method of vacuum preloading Ground Consolidation . Engineering field data using FLAC3D finite -drop method to calculate the three-dimensional consolidation . Simulate the the real loading process , to analyze the impact of vacuum preloading deformation , and thus be able to propose to improve reinforcement effect of vacuum preloading measures and measures to reduce the impact of vacuum preloading foundation of surrounding buildings .

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Foundation > Artificial foundation reinforcement > Shallow and deep mechanical reinforcement ( compaction ) > Preload ( sand wells, heap load )
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