Results 21 to 30 of about 2,147,929 (306)

Interactions of Foundation Pit on the Underlying Adjacent Existing Underground Structures

open access: yesGeofluids, 2022
The influence of foundation pit excavation on deformation and stability of the supporting structure of underlying adjacent existing tunnel is a comprehensive geotechnical engineering problem, including unloading effect of foundation pit excavation and ...
Wanzhong Xu   +3 more
doaj   +1 more source

Variation of axial force of steel struts in deep excavations

open access: yesYantu gongcheng xuebao, 2022
The discrete data and unclear variation trend of axial force of steel structs are the important design problems, which seriously affect the safety and economic rationality of deep excavations.
CAO Xue-shan 1, LU Xin-yu 2, GU Yi-ming 3
doaj   +1 more source

Supporting Mechanism of Pile-Anchor Systems for Deep Foundation Pits in Alpine Regions during the Spring Thaw

open access: yesGeofluids, 2023
This study investigated the supporting mechanism of the retaining piles and prestressed anchor cables of a deep foundation pit in alpine regions during the spring thaw. A numerical model was developed based on a subway project in Changchun City.
Qiang Shi   +5 more
doaj   +1 more source

Tension Force Estimation in Axially Loaded Members using Wearable Piezoelectric Interface Technique

open access: yesSensors, 2018
Force changes in axially loaded members can be monitored by quantifying variations in impedance signatures. However, statistical damage metrics, which are not physically related to the axial load, often lead to difficulties in accurately estimating the ...
Joo-Young Ryu   +2 more
doaj   +1 more source

Bolt axial force measurement using Digital Image Correlation Method considering bending force on bolt

open access: yesNihon Kikai Gakkai ronbunshu
As a simple and highly accurate axial force management method during manufacturing and maintenance of bolt-tightened structures, we examined a method to calculate the axial force from images of the bolt head. In this method, the axial force is calculated
Takeshi INOUE   +4 more
doaj   +1 more source

The variation characteristics of axial force of bolts under alternating temperature

open access: yesResults in Engineering
This paper focus on the variation characteristics of axial force of bolts under alternating temperature. The temperature distribution characteristics of various regions in China were considered, and a typical alternating temperature load (0∼25 °C) was ...
Fan Gao   +5 more
doaj   +1 more source

Direct measurement of axial optical forces

open access: yesOptics Express, 2015
Direct measurement of optical forces based on recording the change of momentum between the in- and outgoing light does not have specific requirements on particle size or shape, or on beam shape. Thus this approach overcomes many of the limitations of force measurements based on position measurements, which require frequent calibration.
Gregor Thalhammer   +2 more
openaire   +2 more sources

Noncontact measurement of bolt axial force during tightening processes using scattered laser ultrasonic waves

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
This paper presents a new methodology for noncontact measurement of the axial force of bolts in their tightening processes using laser-generated ultrasound waves.
So Kitazawa, Yong Lee, Rikesh Patel
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng   +3 more
wiley   +1 more source

Experimental and Numerical Study on the Behavior of RC Members under Combined Loads

open access: yesInternational Journal of Concrete Structures and Materials
In this paper, we present an investigation of the performance of reinforced concrete (RC) columns under combined bending loads and various axial forces using a finite element method (FEM) model developed with the ABAQUS finite element program, verified ...
Sangwoo Kim   +3 more
doaj   +1 more source

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