scholarly journals Study on Influence Factors of Water Content of Expansive Soil in Canal Slope Based on Grey Correlation Model

2019 ◽  
Vol 304 ◽  
pp. 022027
Author(s):  
Zuqiang Liu ◽  
Mingzhe Li ◽  
Feng Yan ◽  
Hongming Luo
Keyword(s):  
Water Content ◽  
Influence Factors ◽  
Expansive Soil ◽  
Correlation Model ◽  
Grey Correlation

Assessing the effect of moulding water content on the behaviour of lime-stabilised an expansive soil

2021 ◽  
pp. 1-13
Author(s):  
Abdelmoumen Aala-Eddin Driss ◽  
Khelifa Harichane ◽  
Mohamed Ghrici ◽  
Hamid Gadouri
Keyword(s):  
Water Content ◽  
Expansive Soil

scholarly journals Shear strength characteristics of Jerash expansive soil

2021 ◽  
Vol 3 (2) ◽  
pp. 74-80
Author(s):  
Talal Masoud
Keyword(s):  
Shear Strength ◽  
Internal Friction ◽  
Water Content ◽  
Direct Shear Test ◽  
Shear Test ◽  
Expansive Soil ◽  
Content Increase ◽  
Direct Shear ◽  
Initial Water ◽  
Angle Of Internal Friction

The results of the direct shear test on Jerash expansive soil show the effect of the initial water content on the cohesion (c) and on the angel of internal friction ( ) [shear strength parameters].it show that, as the initial water increase, the cohesion (c) of Jerash expansive soil also increase up to the shrinkage limit, after that increase of water even small amount, decrease the cohesion of the soil. On the other hand, the results of direct shear test show also  that as the water content increase, the angle of internal friction ( )remain unchanged up to shrinkage limit , any increase of water cause a large decrease on the angle of internal friction of Jerash expansive soil.

scholarly journals PENGUJIAN TANAH EKSPANSIF DENGAN SKALA MODEL MENGGUNAKAN KAYU DOWEL SEBAGAI PENGGANTI DINDING PENAHAN TANAH

2020 ◽  
Vol 3 (3) ◽  
pp. 853
Author(s):  
Richard Samuel ◽  
Alfred Jonathan Susilo
Keyword(s):  
Water Content ◽  
Pile Foundation ◽  
Expansive Soil ◽  
Lateral Movement ◽  
Swelling Properties ◽  
Important Thing ◽  
Shrinkage Potential

Foundation is one of the most important thing in a construction. The frequently used foundation in construction is pile foundation. In Indonesia  the used of pile is adapt by the condition and quality of the soil. Indonesia had many types of soil, and one of them is expansive soil. Expansive soil is a type of clay that had a swelling and shrinkage potential where the swelling happen when the water content is increase and shrink when the water content decreased. One of the mineral that can cause swelling is montmorillonite mineral in expansive soil. The chemical chain between particles that influenced by the increase of water content is causing montmorillonite mineral to swell. The focus of this research is lateral movement that happened to pile as an effect of the swelling properties in expansive soil. This analysis will also inform the effectiveness on using different size and number of pile in expansive soil. Fondasi merupakan salah satu bagian terpenting dalam suatu konstruksi. Salah satunya yang sering digunakan pada proses pelaksanaan konstruksi adalah fondasi tiang pancang. Di Indonesia sendiri penggunaan fondasi tiang pancang disesuaikan dengan kondisi dan kualitas dari tanah yang ada. Indonesia memiliki berbagai macam tipe dan jenis tanah yang berbeda, salah satunya adalah tanah ekspansif. Tanah ekspansif merupakan jenis lempung yang memiliki daya pengembangan dan penyusutan dimana pengembangan tersebut terjadi jika adanya penambahan kadar air dan menyusut ketika terjadi pengurangan kadar air. Salah satu yang dapat menjadi penyebab terjadinya pengembangan adalah kandungan mineral montmorillonite yang terdapat pada tanah ekspansif. Ikatan kimia antar partikel yang dipengaruhi oleh adanya peningkatan kadar air tanah menyebabkan mineral montmorillonite pada tanah ekspansif tersebut akan mengembang. Analisis yang dilakukan akan berfokus pada pergeseran lateral yang terjadi pada  tiang pancang sebagai akibat dari dampak pengembangan yang terjadi pada tanah ekspansif. Analisis ini juga menghasilkan efektivitas pada penggunaan ukuran dan jumlah tiang pancang ditanah ekspansif.

scholarly journals Screening the Main Factors Affecting the Wear of the Scraper Conveyor Chute Using the Plackett–Burman Method

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Rui Xia ◽  
Bo Li ◽  
Xuewen Wang ◽  
Zhaojian Yang ◽  
Liping Liu
Keyword(s):  
Particle Size ◽  
Water Content ◽  
Coal Particle ◽  
Normal Load ◽  
Influence Factors ◽  
Optical Microscope ◽  
Operating Conditions ◽  
Wear Loss ◽  
Regression Equations ◽  
Scraper Conveyor

The wear of scraper conveyor chute causes both significant economic and environmental losses by shortening the service life. The life of the chute under coal abrasive wear situations is primarily decided by operating conditions and the materials properties. The comprehensive analysis of the influence factors had not been studied before. In this paper, the Plackett-Burman design (PBD) method was used to screen the main influence factors and a regression equation was developed to predict the wear loss. The steel was tested on a modified pin-on-disk apparatus in which coal abrasive was filled in the disk. The influence factors included water content, gangue content, coal particle size, Hardgrove Grindability-Index (HGI) of the coal, normal load, and scraper chain speed. The results of the investigation suggested that the significance of water content, normal load, and gangue content on wear loss was relatively higher than the HGI of coal, scraper chain speed, and coal particle size. The wear loss increased with the increase of water content, gangue content, normal load, and coal particle size while it decreased as increase in HGI of the coal and scraper chain speed. Based on the significance of the parameters, the regression equations were derived and verified further with a number of test cases. Optical microscope studies revealed the main wear mechanism of the chute was mainly micro-cutting and corrosive wear and accompanied by fatigue fracture.

The Analysis of the Load Rate Influence Factors Based on the Grey Correlation

2014 ◽  
Vol 631-632 ◽  
pp. 94-98
Author(s):  
Xue jun Wang ◽  
Ji Xiang Zhang ◽  
Zhen Gao Zhang ◽  
Ming Zhi Liu
Keyword(s):  
Influence Factor ◽  
Rapid Development ◽  
Influence Factors ◽  
Key Factors ◽  
Grey Correlation ◽  
Power Characteristics ◽  
Load Rate ◽  
Grey Correlation Analysis ◽  
Influence Degree ◽  
The Relationship

With the rapid development of power industry, the load rate which describes the power characteristics is playing a more and more important role, this paper uses the grey correlation analysis to find the relationship between the load rate and the influence factors based on the historical data of the load rate influence factors and analyzes the weight of each influence factor quantitatively through the grey correlation coefficient so as to reflect the influence degree of different factors on load rate, meanwhile, through the analysis of various influencing factors of load rate, this paper hopes to clarify its effects on the load rate which includes strength, size and the order and help the power grid enterprise choose the key factors influencing the load rate which provide a basis for the future to improve the load rate.

Analyses of Anti-Seepage Measure for Expansive Soil Subgrade in Hefei

2014 ◽  
Vol 580-583 ◽  
pp. 552-555
Author(s):  
Yuan Wei ◽  
Wei Zhong Xing ◽  
Yan Shao
Keyword(s):  
Numerical Calculation ◽  
Moisture Content ◽  
Water Content ◽  
Engineering Design ◽  
Control Measure ◽  
Expansive Soil ◽  
Large Change ◽  
Time Range ◽  
Seepage Control ◽  
Unsaturated Expansive Soil

Deformation of expansive soil subgrade depends on moisture content. Anti-seepage measure of unsaturated expansive soil was carried out using ABAQUS as for the influence of atmosphere. The results show that there is large change in water content using anti-seepage measure measure. After using anti-seepage measure, range of water content decreases. At the same time, range of water content value obviously decreases with the increase of the depth of seepage control. Therefore, damage of pavement caused the deformation can decrease by seepage control measure. The results could be used for engineering design and numerical calculation.

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