Experimental Investigation of Compression of Overlength Bored Piles Shaft in Loess Area

2014 ◽  
Vol 644-650 ◽  
pp. 5023-5027
Author(s):  
Xing Xie ◽  
Dong Hong Wang ◽  
Ji Wen Zhang

Calculation and discussion have been carried about relation between compression of bored piles shaft and settlement of pile top, and valuation of ξ as composition coefficient adopted in standard method and distribution pattern of compression settlement characteristic by static load test on overlength bored piles in loess area as well as test and analysis on load-settlement characteristic of pile top together with strain test data on piles shaft.

2013 ◽  
Vol 671-674 ◽  
pp. 186-189
Author(s):  
Werasak Raongjant ◽  
Meng Jing

Field test data from three instrumented large diameter bored piles in Pattaya city of Thailand were analyzed to study the behavior of load transfer mechanism from the pile to soil. The pile load test data were obtained from conventional static load test. These bored piles used for conventional static load test have the same diameter of 0.80 m and different length in the range of 25 m to 32 m. Results from back-analysis found that the skin friction resistance, β, has the value between 0.20 and 0.64 and the bearing capacity at end of piles, Nq, which is in the range of 10 to150, is much lower than the theoretical values proposed by other researchers before.


2020 ◽  
Vol 8 (4) ◽  
pp. 22-27
Author(s):  
Pavel Gavrilov ◽  
Vyacheslav Glukhov

The purpose of this research is to estimate the bearing capacity of bored piles with broadening, formed by stone rolling. A series of static tests of the existing piles was performed in accordance with the requirements of the current regulatory documentation, the analysis of the obtained results was carried out. According to this experimental researches, was made a conclusion about the advisable to take into account the standard values of settlements at the determining of the bearing capacity of piles by ground. The results of field tests were compared with the calculated values, determined by calculation with the recommendations of SP 24.13330.2011. Noted, that the value of load, corresponding to the moment of the pile «failure», should be taken as a criterion of the factual bearing capacity.


2011 ◽  
Vol 243-249 ◽  
pp. 2395-2400
Author(s):  
Zi Ran Dai ◽  
Zhi Hong Huang ◽  
Hui Li ◽  
Xi Da Yin

This paper introduced the application of Self-balanced Test Method for Bearing Capacity of Foundation Piles on a construction project of Gui Zhou province, while sorting out and analyzing the test data, the application results indicates that the method of the static load test is an effective and convenient method of testing technique. it can popularize the use in the similar projects.


2012 ◽  
Vol 17 (5) ◽  
pp. 929-938 ◽  
Author(s):  
Jae Hyun Park ◽  
Jungwon Huh ◽  
Kyung Jun Kim ◽  
Moonkyung Chung ◽  
Ju Hyung Lee ◽  
...  

2016 ◽  
Vol 8 (5) ◽  
pp. 495-498
Author(s):  
Tautvydas Statkus

In this article jacked pile installation technology and its current processes, altering the base physical and mechanical characteristics are discussed. For the jacked pile static load test simulation Plax 3D software was selected, the opportunities and developments were described. Model building, materials, models, model geometry, finite elements, boundary conditions and assumptions adopted in addressing problems described in detail. Three different tasks formulated and load-settlement dependence a comparison of the results with the experiment given. Conclusions are formulated according to the modeling results. Šiame straipsnyje aptarta spaustinių polių įrengimo technologija ir ją taikant vykstantys procesai, keičiantys pagrindo fizines ir mechanines charakteristikas. Spaustinio polio bandymui statine apkrova modeliuoti pasirinktas PLAXIS 3D programinis paketas ir aprašytos jo galimybės bei raida. Detaliai nupasakotas modelio kūrimas, medžiagų modeliai, modelio geometrija, baigtiniai elementai, kraštinės sąlygos ir priimamos prielaidos sprendžiant problemą. Suformuluoti trys sprendžiami uždaviniai ir apkrovos bei nuosėdžio priklausomybe pateikiamas rezultatų palyginimas su eksperimentu. Atsižvelgiant į modeliavimo rezultatus suformuluotos išvados.


2013 ◽  
Vol 790 ◽  
pp. 227-230
Author(s):  
Jian Feng Su ◽  
Yu Feng Xu

Floor slab static load test is a important method to judge the performance and carrying capacity of the slab. This paper, with the background of a factory frame-structure slab, introduced the testing scheme, the details of the testing process as well as the test results. The testing cases provide a useful reference for the same type of project.


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