Stress Model Test of Anti-Sliding Micropile Groups
Journal Title: 河南科技大学学报（自然科学版） - Year 2016, Vol 37, Issue 2
Abstract
The model test was carried out to analyze the stress performance of anti-sliding micropile groups and the function of connecting beam. The results shows that the maximum shearing force of the piles occurs around the slip surface and decreases from the front to the back row with maximum shearing force section moving upwards. Landslide thrust on micropiles is distributed in a approximate triangle shape with a greater thrust in the middle lower pile. The pile body deformation undergoes a transition from an integral bend to a partly shear around slip surface with anti-sloding resultant force lowering. The ratio of sliding thrust undertaken by every row of piles is 1. 00∶ 0. 64∶ 0. 44. The maximum load is enhanced 11%. Slope displament and bending moment of micropiles are reduced via connecting beam. The connecting beam enables the front row of pile pulled out and back row pressed down. Connecting beam also increases the soil pressure between piles in the front and reduces pile body pressure.
Authors and Affiliations
Kaiyuan LIU, Chu CHU, Xiaolei HAN, Shigang SHI
Keywords
Related Articles
- EP ID EP461023
- DOI 10.15926/j.cnki.issn1672-6871.2016.02.012
- Views 68
- Downloads 0
Strength Change Mechanism of Undisturbed Red Clay and Remolded Red Clay
In order to study the strength characteristics and influencing mechanism of red clay, direct shear tests were carried out on undisturbed soil samples and remolded soil samples under different normal stresses σ.Scanning e...
Design of High Precision Conductivity Sensor in Water Quality Monitoring
In order to solve the problem that the online detection results of the conductivity sensor in water quality monitoring were widely inaccurate, unstable and unsuitable integration, the high precision conductivity sensor b...
Application of Wireless Communication Technology to Tractor Traction Performance Testing
To solve the problem of the multifarious wired connection between tested tractor and power wagon, the low working reliability and the poor motility of the tractor traction performance test system, two-cars and multicompu...
Weighted Wavelet Estimation in Heteroscedastic Models with Linear Trend and Dependent Errors
For the heteroscedastic models with linear trend, the weighted wavelet estimators of the unknown parameters and variance function were constructed by the wavelet method.When the random error sequence wasα-mixing, the asy...
Primary Resonance of Functionally Graded Graphene-Reinforced Nanocomposite Beams in Thermal Environments
In order to study the influence of temperature on the nonlinear forced vibration of functionally graded graphene-reinforced beams, the first-order shear deformation theory was adopted to derive the governing equations of...