Results 1 to 10 of about 21,673 (162)

Experimental Study on the Difference Mechanism of Shaft Resistance between Uplift Piles and Compressive Piles

Applied Sciences, 2023
To study the formation mechanism of the lower shaft resistance of uplift piles compared to compression piles, the additional stress caused by uplift and compressive piles in the soil is obtained through indoor model tests with embedded micro earth ...
Hailong Ma, Yufei Ma, Lin Zhu, Hangyu Zhang   +3 more
doaj   +3 more sources

Field Measurement and Theoretical Analysis of Sidewall Roughness on Shaft Resistance of Rock-Socketed Piles

Journal of Marine Science and Engineering, 2023
Sidewall roughness is a key factor influencing the shaft resistance of rock-socketed piles. Owing to the difficulties in onsite measuring and the inconsistency in quantitatively characterizing the roughness degree of sidewalls, existing approaches for ...
Jun Liu, Zhongwei Li, Guoliang Dai, Weiming Gong   +3 more
doaj   +3 more sources

Empirical Shaft Resistance of Driven Piles Penetrating Weak Rock. [PDF]

Rock Mech Rock Eng, 2020
Barrett JW, Prendergast LJ.
europepmc   +2 more sources

Operational performance research of layered rotary tillage and ridging machine on for the sticky soil using DEM [PDF]

Scientific Reports
To address the challenges of low soil fragmentation rates and high tillage resistance during land preparation for the sticky soil in southwest China, a double-shaft layered rotary tillage and ridging machine was designed to enhance the soil layer ...
Tao Zhang, Xinglong Tang, Cong Dai, Guiying Ren, Youlun Pang   +4 more
doaj   +2 more sources

Method for Calculating Vertical Compression Bearing Capacity of the Static Drill Rooted Nodular Pile

Applied Sciences, 2022
The static drill rooted nodular (SDRN) pile is a new kind of composite pile foundation made by inserting a precast nodular pile into the cemented soil.
Jing Guo, Guoliang Dai, Yue Wang
doaj   +1 more source

Research on ventilation system optimization of mine central pump room based on thermal cycle theory

Meikuang Anquan, 2021
Taking Zhushantang Coal Mine as the research background, based on the thermal cycle theory, the original ventilation system of mine central pump room was reformed.
TANG Jianhua, WANG Haiqiao, SUN Dingzhong   +2 more
doaj   +1 more source

Comparative Investigation of Axial Bearing Performance and Mechanism of Continuous Flight Auger Pile in Weathered Granitic Soils

Buildings, 2023
Axial bearing performance and mechanism of continuous flight auger (CFA) pile in weathered granitic soils, i.e., a widespread special soil in South China, were investigated by field test in this study.
Xuqun Zhang, Zhili Li, Siyuan Zhang, Yaohua Sui, Chengjun Liu, Zilong Xue, Zhaofeng Li   +6 more
doaj   +1 more source

Considerations on an embedded pile’s effective length in an analytical calculation according to the commentary on the STN 73 1002 standard

Acta Polytechnica CTU Proceedings, 2023
The analytical model for calculating the bearing capacity of a pile, presented in the commentary to STN 73 1002 – Pile Foundations, gives a recommendation to reduce the pile’s length in the calculation of the shaft resistance.
Jakub Stacho, Monika Súľovská
doaj   +1 more source

Axial Bearing Mechanism of Post-Grouted Piles in Calcareous Sand

Applied Sciences, 2022
Post-grouted piles, as a foundation form for large-span and large-scale structures on calcareous sand, are expected to provide a high bearing capacity, but research on the response of post-grouted piles subjected to axial load in calcareous sand is still
Zhihui Wan, Heng Liu, Feng Zhou, Guoliang Dai   +3 more
doaj   +1 more source

Transient unsaturated shaft resistance of a single pile during water flow [PDF]

MATEC Web of Conferences, 2021
The pile foundations’ design is commonly based on the soil’s initial in situ condition during field investigations or the assumption of its saturated condition.
Santos Daniel Batista, Lemos Moisés Antônio da Costa, Cavalcante André Luís Brasil   +2 more
doaj   +1 more source