Results 21 to 30 of about 212,626 (307)

Influence of Drilling Methods on the Results of Standard Penetration Test in Loess–Paleosol Sequence

Frontiers in Built Environment, 2022
Standard penetration test (SPT) is an important in situ measurement for field investigation of geotechnical and geological engineering. The drilling approaches for implementation of SPT can be classified into dry, wet, and water circulation drillings ...
Xin Li, Yanrong Li, Dongdong Lv, Shengdi He, Weiwei Zhang   +4 more
doaj   +1 more source

Assessment of model bias of SPT, Vs and CPT-based liquefaction models

Yantu gongcheng xuebao, 2023
The liquefaction models established through the in-situ tests and liquefaction case histories are widely adopted in the liquefaction evaluation of a site.
SHEN Mengfen , BAO Lichun , SUN Honglei , CAI Yuanqiang
doaj   +1 more source

Evaluation method for sand liquefaction of Hong Kong-Zhuhai-Macao Bridge based on CPTU tests

Yantu gongcheng xuebao, 2017
The earthquake liquefaction is one of the direct causes for unstable ground and damage of upper structure. Therefore, the liquefaction assessment is an important part of anti-seismic investigation in engineering.
DUAN Wei 1, CAI Guo-jun 1, LIU Song-yu 1, ZHU Liu-wen 2, DU Yu 2
doaj   +1 more source

Estimation of Pressuremeter Modulus and Limit Pressure in Weathered Granite Based on the SPT-N Value and Chemical Weathering Index: A Case Study in South Korea

Applied Sciences, 2021
A pressuremeter test (PMT) is a representative and highly reliable in situ test for assessing the stress–strain behavior of weathered granite. Its application, however, is restricted by its cost and time requirements.
Seung-Hwan Lee, Tae-Young Kwak, Ka-Hyun Park   +2 more
doaj   +1 more source

Pile Installation Assessment of Offshore Wind Jacket Foundation in Completely Weathered Rock: A Case Study of the South China Sea

Journal of Marine Science and Engineering, 2022
The assessment of pile drivability is the premise of successful pile installation, and completely weathered (CW) rock may bring the risk of pile refusal. This paper presents a case of pile driving refusal that occurred in a CW gneiss layer.
Jiangsong Yin, Sa Li, Liqiang Sun, Tingting Li   +3 more
doaj   +1 more source

Assessment of seismic liquefaction hazard in Shanghai based on ground motion intensity and Standard Penetration Test

Dizhi lixue xuebao, 2021
Shanghai is located in the alluvial plain of the Yangtze River Delta, the merge area of the Huangpu River and Suzhou River. The unique geographical and sedimentary environment have formed the shallow sand layers in Shanghai.
LI Xue, ZENG Yuyan, YU Fei, SHI Gang
doaj   +1 more source

Field tests on the effects of diameter of drill pipe on number N of SPT

Yantu gongcheng xuebao, 2017
Currently the application of 50 drill pipe is more in the standard penetration test (SPT) in the geotechnical engineering investigation, which is different from the code that 42 drill pipe is specified.
NIE Qing-ke 1,2, JIA Xiang-xin 1,2, QIN Lu-sheng 1,2, WANG Ying-hui 1,2, LIANG Shu-qi 1,2
doaj   +1 more source

Using a genetic algorithm to develop a pile design method

Soils and Foundations, 2022
A genetic algorithm (GA) was used in this study to develop a standard penetration test (SPT)-based design method for the axial capacity of driven piles.
Markus Jesswein, Jinyuan Liu
doaj   +1 more source

Developing a Regionally Adaptable CPT-SPT Correlation Using Linear Regression and Genetic Algorithms

Applied Sciences
Establishing a correlation between the Cone Penetration Test (CPT) and the Standard Penetration Test (SPT) is of significant importance for geotechnical engineering practice. A novel correlation between CPT-qt and SPT-N60 based on a genetic algorithm (GA)
Shuai Fang, Nan Zhang, Xinpeng Lv, Haoran Li   +3 more
doaj   +1 more source