scholarly journals Effects of Shaft Grouting on the Bearing Behavior of Barrette Piles: A Case Study in Ho Chi Minh City

2021 ◽  
Vol 11 (5) ◽  
pp. 7653-7657
Author(s):  
P. H. V. Nguyen ◽  
P. C. Nguyen
Keyword(s):  
Bearing Capacity ◽  
Ho Chi Minh City ◽  
Pile Head ◽  
Economic Problems ◽  
High Rise ◽  
Building Foundation ◽  
Element Simulation ◽  
Bearing Behavior ◽  
Head Level

The shaft-grouted method has been applied on high-rise buildings in Ho Chi Minh City for the purpose of increasing the bearing capacity of barrette piles. The Exim Bank Building foundation, using two kinds of shaft-grouted barrette piles, was 65m (TP1) and 85m (TP2) in depth. To assess the bearing capacity, this project assembly used the O-cell tools installed at 49m depth below the pile head level. Shaft grouting was performed from -25m to the TP1 pile toe level and -65m to the TP2 pile toe level. This work is based on the data from the O-cell experiments at the construction site and the results of finite element simulation in Plaxis software. The effectiveness of shaft grouting was analyzed and the length and position of the ejector were evaluated and compared in order to find the best solution for applying shaft grouting with the aim to ensure safety and mitigate economic problems.

Research on the Influence of the P-δ Effect to Ultimate Bearing Capacity of Single Layer Latticed Shell Structures

2012 ◽  
Vol 193-194 ◽  
pp. 872-875
Author(s):  
Wen Feng Du ◽  
Zhi Yong Zhou
Keyword(s):  
Bearing Capacity ◽  
Shell Structure ◽  
Single Layer ◽  
Ultimate Bearing Capacity ◽  
Shell Structures ◽  
High Rise ◽  
Element Simulation

The ultimate bearing capacity of the single-layer latticed shell structure, calculated without considering the single-member instability(P-δ effect), was not consistent to the actual value of ultimate bearing capacity in practice. It was studied in detail that the ultimate bearing capacity of the single-layer latticed shell structure considering the member instability by proposing a method of multi-element simulation. The value of the ultimate bearing capacity decreased by 15.6% after considering the member instability taking a single-layer latticed shell structure with a 40m span as example. The analysis results show that the value of ultimate bearing capacity is significantly affected for the single-layer latticed shell structure with a small span and high rise-span ratio

Research on Ultimate Bearing Capacity of Single-Layer Cylinder Latticed Shells Considering the Influence of P-δ Effect

2012 ◽  
Vol 238 ◽  
pp. 589-592
Author(s):  
Wen Feng Du ◽  
Zhi Yong Zhou ◽  
Pei Zhu
Keyword(s):  
Bearing Capacity ◽  
Shell Structure ◽  
Single Layer ◽  
Ultimate Bearing Capacity ◽  
High Rise ◽  
Element Simulation

The ultimate bearing capacity of the single-layer cylinder latticed shell structure, calculated without considering the single-member instability(P-δ effect), was not consistent to the actual value of ultimate bearing capacity in practice. The ultimate bearing capacity of the single-layer cylinder latticed shell structure was studied in detail by proposing a method of multi-element simulation, considering the member instability. The value of the ultimate bearing capacity decreased by 1.2% after considering the member instability taking a single-layer latticed shell structure with a 40m span as example. The analysis results show that the value of ultimate bearing capacity is tiny affected for the single-layer cylinder latticed shell structure with a small span and high rise-span ratio

scholarly journals Influence of Underpinning Pile Drilling Construction on the Bearing Behavior of Existing Loaded Foundation Piles: Case Study

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Hua-feng Shan ◽  
Tang-dai Xia ◽  
Feng Yu ◽  
Hai-bing Tao ◽  
Shao-heng He
Keyword(s):  
Engineering Design ◽  
Skin Friction ◽  
Parameter Analysis ◽  
Borehole Diameter ◽  
High Rise ◽  
Drilling Parameters ◽  
Foundation Pile ◽  
Bearing Behavior ◽  
Negligible Influence

The mechanism of drilling borehole and its influence on the bearing behavior of existing foundation piles are unclear, hindering the application of excavation techniques. This paper proposes a new excavation scheme for high-rise buildings in downtown and develops theoretical formulas to calculate the skin friction and end resistance of existing foundation piles affected by adjacent borehole drilling for installing underpinning piles. These underpinning piles are installed and connected with the existing pile by the head cap before excavation. In a case study, the parameter analysis was then performed to understand the effect of underpinning construction on the bearing behavior of existing foundation piles in terms of skin friction and end resistance. The results show that borehole diameter, depth of drilling borehole, distance between the existing foundation pile and drilling borehole, and number of boreholes have a negligible influence on the end resistance of existing foundation piles. The effect of drilling parameters on the skin friction of existing foundation pile, as well as the influence extent, varies for different parameters. The depth of drilling borehole and the number of boreholes have significant influence and thus should be considered in real engineering design while the borehole diameter and the pile-pile distance have a negligible effect. The proposed new excavation technique could be potentially adopted for real engineering design of underneath excavation projects for high-rise buildings in downtown.

Decoupled formal and informal flooding adaptation and conflicts in coastal cities: A case study of Ho Chi Minh City

2021 ◽  
Vol 209 ◽  
pp. 105654
Author(s):  
Anh Cao ◽  
Miguel Esteban ◽  
Motoharu Onuki ◽  
Kiet Nguyen ◽  
Danh Thao Nguyen ◽  
...  
Keyword(s):  
Ho Chi Minh City ◽  
Coastal Cities

scholarly journals Analysis of CO2 Emissions from Industrial Parks: A Case Study in Ho Chi Minh City, Vietnam

2021 ◽  
Vol 1092 (1) ◽  
pp. 012084
Author(s):  
T LVan ◽  
V T T Ho ◽  
H D T Thanh ◽  
N T Thong ◽  
Q Huynh ◽  
...  
Keyword(s):  
Co2 Emissions ◽  
Ho Chi Minh City ◽  
Industrial Parks

scholarly journals Bearing Capacity of the High-Rise Pile Cap Foundation for Offshore Wind Turbines

2014 ◽  
Author(s):  
Wen-Gang Qi ◽  
Jing-Kui Tian ◽  
Hong-You Zheng ◽  
Hai-Yan Wang ◽  
Jing Yang ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Wind Turbines ◽  
Offshore Wind ◽  
Offshore Wind Turbines ◽  
High Rise ◽  
Pile Cap

A Review- Risk Assessment of Runway Overrun Incursion

2021 ◽  
pp. 455-458
Author(s):  
Priyanka Peter ◽  
Prof. Vaibhav S. Umap
Keyword(s):  
Risk Assessment ◽  
Traffic Control ◽  
Air Traffic Control ◽  
Air Traffic ◽  
The Body ◽  
High Rise ◽  
Body Of Knowledge ◽  
Mechanical Faults ◽  
Runway Incursion

Aviation crashes all over the world have recently been on the high rise, stemming from negligence, mechanical faults, weather, ground control errors, pilot errors, taxing and maintenance crew errors as are probable reasons for such accidents. This case study models the probabilistic risk assessment of runway incursion data endeavored to determine the correlation in between the reported incursions that occurred at Nagpur airport between fiscal years 2005 and 2015 and the meteorological conditions, times of day, and presence of an air traffic control tower of Nagpur Airport. With runway incursions long-plaguing the safety of aviators, their passengers, and aviation refining the body of knowledge underpinning incursions coupled with ongoing prevention efforts aspire to diminish the annual incidence of incursions, increase safety, and save lives. In accordance with this mission, mining the Civil Organization (ICAO), and Federal Aviation Association (FAA) runway incursion databases and analyzing the resulting hours, and at airport with an air traffic control tower.

ANALYSIS AND DESIGN OF G+4 RESIDENTIAL BUILDING USING ETABS

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
Chinmay Padole ◽  
Samiksha Bansod ◽  
Taniya Sukhdeve ◽  
Abhishek Dhomne ◽  
Maheshwari Nagose ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Residential Building ◽  
Shape Modelling ◽  
Analysis And Design ◽  
Design Procedures ◽  
High Rise ◽  
Building Systems ◽  
Dynamic Loadings ◽  
Storey Building

ETABS stands for Extended Three-Dimensional Analysis of Building Systems. ETABS is commonly used to analyze: Skyscrapers, concrete structures, low and high rise buildings, and portal frame structures. The case study in this paper mainly emphasizes on structural behavior of multi-storey building for different plan configurations like rectangular, C, L and I-shape. Modelling of 15-storeys R.C.C. framed building is done on the ETABS software for analysis ETABS issue, for analysis and design for building systems. ETABS features are contain powerful graphical interface coupled with unmatched modeling, analytical, and design procedures, all integrated using a common database. STAAD and ETABS both of the software are well equipped and very much capable of handling different shape of the structures, static and dynamic loadings and different material properties.

Sign in / Sign up

Export Citation Format

Share Document