scholarly journals ANALISIS PENURUNAN PONDASI TIANG BOR DENGAN METODE EMPIRIS DAN UJI BEBAN PADA PROYEK GEDUNG “K” UNIVERSITAS MUHAMMADIYAH PURWOKERTO

2022 ◽  
Vol 3 (1) ◽  
Author(s):  
Amris Azizi ◽  
M. Agus Salim Al Fathoni ◽  
Sulfah Anjarwati
Keyword(s):  
Pile Driving

Gedung “K” Universitas Muhammadiyah Purwokerto dirancang menggunakan pondasi tiang bor dengan kedalaman ujung mencapai 16 meter. Dalam pelaksanaan pekerjaan pondasi, sering dijumpai kondisi tanah pada kedalaman yang sama mempunyai karakteristik yang berbeda. Hal ini dapat mempengaruhi ketercapaian kedalaman pondasi yang direncanakan, mempengaruhi kualitas, kapasitas dukung dan besarnya penurunan pondasi. Penelitian ini menganalisis besarnya penurunan pondasi tiang menggunakan metode statik (pendekatan teoritis) kemudian dibandingkan dengan penurunan pondasi tiang hasil uji beban metode Pile Driving Analyzer (PDA). Analisis diperlukan untuk memastikan penurunan pondasi terpasang masih dalam batas-batas yang diijinkan.Hasil analisis menunjukkan penurunan pondasi tiang dengan cara statik pada tiang BP4 dan BP6 adalah 0,25 dan 0,24 mm, jauh lebih kecil dibandingkan dengan penurunan pondasi tiang hasil uji pembebanan dilapangan, yaitu sebesar 3 mm. Penurunan pondasi tiang tunggal dengan cara statik maupun hasil uji lapangan masih dibawah batas maksimum penurunan yang diijinkan.

Effect of Pile-Driving Playback Sound Level on Fish-Catching Efficiency in Harbor Porpoises (Phocoena phocoena)

2019 ◽  
Vol 45 (4) ◽  
pp. 398-410 ◽  
Author(s):  
Ronald A. Kastelein ◽  
Léonie A. E. Huijser ◽  
Suzanne Cornelisse ◽  
Lean Helder-Hoek ◽  
Nancy Jennings ◽  
...  
Keyword(s):  
Sound Level ◽  
Pile Driving ◽  
Phocoena Phocoena ◽  
Harbor Porpoises

Reduced Detection of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) in an Inner Harbour Channel During Pile Driving Activities

2015 ◽  
Vol 41 (4) ◽  
pp. 455-468 ◽  
Author(s):  
Estênio G. Paiva ◽  
Chandra P. Salgado Kent ◽  
Marthe Monique Gagnon ◽  
Robert McCauley ◽  
Hugh Finn
Keyword(s):  
Bottlenose Dolphins ◽  
Pile Driving ◽  
Tursiops Aduncus

MECHANISM OF LARGE-SIZE GRANULUR WASTE DRAGGING BY PILE DRIVING THROUGH WASTE LANDFILL

2019 ◽  
Vol 75 (2) ◽  
pp. I_468-I_473
Author(s):  
Riki NOMURA ◽  
Yoshiaki KIKUCHI ◽  
Shohei NODA ◽  
Tamaki INOUE ◽  
Takayuki HIRAO ◽  
...  
Keyword(s):  
Pile Driving ◽  
Waste Landfill ◽  
Large Size

Response Law and Influencing Factors of the Soil under Action of Pile Driving Vibration Based on Midas/GTS

2013 ◽  
Vol 353-356 ◽  
pp. 979-983
Author(s):  
Dong Zhang ◽  
Jing Bo Su ◽  
Hui De Zhao ◽  
Hai Yan Wang
Keyword(s):  
Damping Ratio ◽  
Large Diameter ◽  
Time History ◽  
Pile Driving ◽  
Analysis Model ◽  
Vibration Load ◽  
History Analysis ◽  
Study Results ◽  
Propagation Law ◽  
Dynamic Time

Due to the upgrade and reconstruct of a high-piled wharf, the piling construction may cause the damage of the large diameter underground pipe of a power plant nearby. For this problem, a dynamic time-history analysis model was established using MIDAS/GTS program. Based on the analysis of the pile driving vibration and its propagation law, some parameters, such as the modulus of the soil, the Poissons ratio of soil, the action time of vibration load and the damping ratio of the soil that may have an effect on the response law of the soil, were studied. The study results not only serve as an important inference to the construction of this case, but also accumulate experience and data for other similar engineering practices.

scholarly journals Driven Pile Effects on Nearby Cylindrical and Semi-Tapered Pile in Sandy Clay

2021 ◽  
Vol 11 (7) ◽  
pp. 2919
Author(s):  
Massamba Fall ◽  
Zhengguo Gao ◽  
Becaye Cissokho Ndiaye
Keyword(s):  
Coupling Effect ◽  
Lateral Displacement ◽  
Bending Moment ◽  
Adaptive Mesh ◽  
Pile Driving ◽  
Arbitrary Lagrangian Eulerian ◽  
Axial Forces ◽  
Tapered Pile ◽  
Driven Pile ◽  
The Impact

A pile foundation is commonly adopted for transferring superstructure loads into the ground in weaker soil. They diminish the settlement of the infrastructure and augment the soil-bearing capacity. This paper emphases the pile-driving effect on an existing adjacent cylindrical and semi-tapered pile. Driving a three-dimensional pile into the ground is fruitfully accomplished by combining the arbitrary Lagrangian–Eulerian (ALE) adaptive mesh and element deletion methods without adopting any assumptions that would simplify the simulation. Axial forces, bending moment, and lateral displacement were studied in the neighboring already-installed pile. An investigation was made into some factors affecting the forces and bending moment, such as pile spacing and the shape of the already-installed pile (cylindrical, tapered, or semi-tapered). An important response was observed in the impact of the driven pile on the nearby existing one, the bending moment and axial forces were not negligible, and when the pile was loaded, it was recommended to consider the coupling effect. Moreover, the adjacent semi-tapered pile was subjected to less axial and lateral movement than the cylindrical one with the same length and volume for taper angles smaller than 1.0°, and vice versa for taper angles greater than 1.4°.

scholarly journals Magnetomechanical response of a steel monopile during impact pile driving

2021 ◽  
Vol 240 ◽  
pp. 112340
Author(s):  
P.C. Meijers ◽  
A. Tsouvalas ◽  
A.V. Metrikine
Keyword(s):  
Pile Driving

scholarly journals Ground Movement Analysis Based on Stochastic Medium Theory

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Meng Fei ◽  
Wu Li-chun ◽  
Zhang Jia-sheng ◽  
Deng Guo-dong ◽  
Ni Zhi-hui
Keyword(s):  
Distribution Function ◽  
Back Analysis ◽  
Movement Analysis ◽  
Measured Data ◽  
Ground Movement ◽  
Pile Driving ◽  
Normal Distribution Function ◽  
Stochastic Medium ◽  
Medium Theory ◽  
Vertical Ground

In order to calculate the ground movement induced by displacement piles driven into horizontal layered strata, an axisymmetric model was built and then the vertical and horizontal ground movement functions were deduced using stochastic medium theory. Results show that the vertical ground movement obeys normal distribution function, while the horizontal ground movement is an exponential function. Utilizing field measured data, parameters of these functions can be obtained by back analysis, and an example was employed to verify this model. Result shows that stochastic medium theory is suitable for calculating the ground movement in pile driving, and there is no need to consider the constitutive model of soil or contact between pile and soil. This method is applicable in practice.

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