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Underlying layer on sloping gravel base and superstructure of

Author: LiHongXing
Tutor: LiuZengRong
School: Xi'an University of Architecture and Technology
Course: Geotechnical Engineering
Keywords: Pebble Subjacent bed Superstructure Foundation Together Numerical Analysis
CLC: TU470
Type: Master's thesis
Year: 2010
Downloads: 32
Quote: 0
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Abstract


Many colleges and universities in our new campus construction, the large number of buildings need to build on the foundations of ancient river . Tilt subjacent bed - upper structure - foundation interaction studies become geotechnical engineering practice in the face of an important issue of practical significance . In this paper, the results of existing research on the subject , based on theoretical analysis and numerical simulation using a combination of methods, the tilt underlying layer and the underlying foundation and superstructure joint action carried out further in-depth study , the major work done and related research conclusions are as follows : ( a ) the basis for different types of underlying layer on sloping gravel base and the upper structure were studied . Computational analysis shows that the inclined gravel foundation underlying layer , to reduce the displacement of the upper structure , reduce stress times the upper structure , based on a variety of different types , the use of shallow foundation ( single base , strip foundation ) , numerical analysis conclusion of the project practice has a certain reference value. A ) an independent basis for the stress distribution , the brick structure on the right side of the stress at the larger column , right -column basis in the stress is relatively small. Underlying layer along the inclined gravel hill in the direction towards its base , two fundamental right under the stress change is relatively large. ( 2 ) pebble subjacent bed for the parameters underlying layer of gravel slope different circumstances underlying layer right on the gravel base and the upper structure were studied , calculation and analysis show that: 1 ) strength than the underlying layer of gravel high, base and superstructure horizontal and vertical displacements are small , basic settlement amount , differential settlement and stress is also smaller ; cobblestone lower the strength of underlying layer , the upper structure of the larger secondary stress . 2 ) steep gravel underlying layer , the upper structure down to the pebbly slope opposite direction forward, small slope opposite ; gravel slope underlying layer more slowly , the average settlement amount based on the smaller pebbles underlying layer slope at the bottom of the column at the end of basic forces greater the smaller the place between columns .

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Foundation > The foundation and basis for the theory and computational
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