E3S Web of Conferences最新文献_第10页

Numerical Evaluation of Slope Stability based on Temporal Variation of Hydraulic Conductivity 基于水力导率时间变化的边坡稳定性数值评价

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338224003

Alinda Gupta, Md. Azijul Islam, Md Jobair Bin Alam

{"title":"Numerical Evaluation of Slope Stability based on Temporal Variation of Hydraulic Conductivity","authors":"Alinda Gupta, Md. Azijul Islam, Md Jobair Bin Alam","doi":"10.1051/e3sconf/202338224003","DOIUrl":"https://doi.org/10.1051/e3sconf/202338224003","url":null,"abstract":"Slope failure is a common phenomenon all over the world on both man-made and natural slopes. Prolonged rainfall is one of the climatic factors which is largely responsible for slope failure. During heavy and prolonged rainfall, a part of the rainwater infiltrates through the soil and seeps into the slope. The infiltrated water lowers the matric suction and increases the porewater pressure. Eventually, the generated porewater pressure decreases the strength of the soil which results in slope failures. To evaluate the effect of rainwater seepage on slope stability, it is necessary to investigate the hydraulic conductivity of the slope soil. The objective of this study is to evaluate the effect of hydraulic conductivity on slope failure mechanisms. A finite element analysis of slope stability was conducted using Geo-Studio software. A numerical model was developed and calibrated with field monitoring data. The field monitoring data included the observation of hydraulic conductivity using a Guelph Permeameter. Afterward, the temporal variation of rainfall and hydraulic conductivity was incorporated into the SEEP/W program and the consequent changes in slope stability were evaluated in SLOPE/W. From the numerical analysis, with the identical strength parameters of the soil, different factors of safety were observed when the slope sections retain different hydraulic properties. Based on the numerical analysis, it was observed that hydraulic conductivity greater than 4×10-6 cm/s leads to slope failure. Periodic monitoring of hydraulic conductivity in the field may provide deep insight into rainfall-induced slope failures.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57921937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field observations of soil moisture, suction and movement of cornfield in tropical highland with and without vetiver system 有无香根草系统的热带高原玉米田土壤水分、吸力和运动的田间观测

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338224004

A. Jotisankasa, Wichuda Jamrueang, S. Pramusandi, Surat Semmad, J. Pilumwong

{"title":"Field observations of soil moisture, suction and movement of cornfield in tropical highland with and without vetiver system","authors":"A. Jotisankasa, Wichuda Jamrueang, S. Pramusandi, Surat Semmad, J. Pilumwong","doi":"10.1051/e3sconf/202338224004","DOIUrl":"https://doi.org/10.1051/e3sconf/202338224004","url":null,"abstract":"An increasing large number of cornfield have been cultivated in highland of many Southeast Asian countries. In most cases, this corn plantation is done without proper soil & water conservation such as vetiver system (VS), thus causing land degradation and shallow slide. This study is aimed at investigating the field behaviour of slopes with corn plantation with and without vetiver system in Chiang Mai, Northern Thailand. Tensiometers, soil moisture sensors, in-place inclinometers and tiltmeters were installed at a slope in two locations, with and without vetiver system from surface to 2m depth. The monitoring results show that for the vetiver treatment, the soil moisture tended to be higher and response faster to rainfall than the cornfield without vetiver. However, the pore-water pressure in the root zone (about 0.5m) was higher for the vetiver treatment than the cornfield which only has the root depth of about 0.2m. For cornfield without vetiver, the seasonal variation of the soil moisture and pore-water pressure was also larger. Tiltmeter indicates a larger surface movement in the cornfield without VS. However, the inclinometer readings suggested that for slope with VS there was some cyclic movement toward hillside at the surface. This could be an indication of non-uniform settlement of soil layers or influence of groundwater rising.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57921949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupled hydro-mechanical behaviour of a Kaolin Clay in the context of the geothermal use of geotechnical structures 土工结构地热利用背景下高岭土的耦合水-力学行为

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338223002

Timon Kayser, W. Baille, M. Tafili, T. Wichtmann

引用次数: 0

Nanophotonics of heterostructures is an important step in solving the problem of environmental safety of transport infrastructure 异质结构纳米光子学是解决交通基础设施环境安全问题的重要一步

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304004

A. Ruban, V. Danilov

引用次数: 0

Advanced drainage of the sides of a coal mine by horizontal wells with a camouflage cavity 带隐蔽空腔的水平井超前排煤技术

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304045

B. Baymirzaev, U. Murodbekov, Z. Mamarajabova, V. Morozov

引用次数: 0

Research primary processing of live of silk cocoons in a solar installation 研究了蚕茧在太阳能装置中的初步加工

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304029

R. Mirsaatov, J. Abdullaev, Gulbakhor Urolova

引用次数: 0

Modification of dispersed systems and its effect of the internal corrosion of hydrotransports 分散体系的改性及其对输水管道内腐蚀的影响

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304032

U. Chorshanbiev, Ahmadjon Ibadullaev, Durdona Toshpulatova, A. Babaev, Baxadir Kakharov

{"title":"Modification of dispersed systems and its effect of the internal corrosion of hydrotransports","authors":"U. Chorshanbiev, Ahmadjon Ibadullaev, Durdona Toshpulatova, A. Babaev, Baxadir Kakharov","doi":"10.1051/e3sconf/202338304032","DOIUrl":"https://doi.org/10.1051/e3sconf/202338304032","url":null,"abstract":"Studies The impact of the modification of dispersed systems of kinematic and dynamic parameters of hydraulic windows, as well as wear in pressure pipes, taking into account the variability of the mechanical composition and the number of hydraulic windows. It is recommended for the modifying additives of the GosIpol resin for dispersed systems and its movements in the cylindrical pipes. The current model that takes into account the concentration of turbidity in the stream and the structural composition of dispersed systems, developed methods of calculation in the process of hydrotransport of modified dispersed systems. The method of calculating the rate of internal corrosion of hydrotransports, specific pressure losses for fluid and solid flow and the effect of variability of the mechanical composition of particles and concentration of turbidity to the flow rate and power of the modified dispersion system is justified, the dependence of the hydraulic friction coefficient from the flow movement mode, taking into account the variability of the solid flow concentration in modified dispersed systems of hydrotransport.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57923771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Representation of a mathematical model of chemical-technological processes with acceleration through a continuous function 用连续函数表示具有加速度的化工工艺过程的数学模型

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304050

S. Fayzullaev, N. Karimova, U. Fayzullaev, N. Tojikhujaeva

引用次数: 0

Modelling and calculation of stumulated oscillation for a crushing plant with vibration 带振动破碎装置脉动振动的建模与计算

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304071

P. Savinykh, Alexei Aleshkin, A. Isupov, F. Kipriyanov, Vladimir Skhlyaev

{"title":"Modelling and calculation of stumulated oscillation for a crushing plant with vibration","authors":"P. Savinykh, Alexei Aleshkin, A. Isupov, F. Kipriyanov, Vladimir Skhlyaev","doi":"10.1051/e3sconf/202338304071","DOIUrl":"https://doi.org/10.1051/e3sconf/202338304071","url":null,"abstract":"The paper presents the results of the mathematical modelling of external stimuli to improve the efficiency of the removal of grain material from the grinding zone. Thus, the authors proposed to improve the evacuation conditions of the finished product from the working chamber of the crushing plant, as one of these solutions to improve the grinding process in crushers. As a result of creation of external vibrating influence. For this purpose, the calculation chart for modelling the proceeding process of the crushing plant body movement is created which takes into account weight and sizes of the crusher, weight, angular velocity of rotation and eccentric piece location, as well as rigidity of an elastic suspension on which the crusher is established. For the solution of the posed problem, we used methods of analytical mechanics, the Lagrange equation of the second kind, for the mechanical system with two degrees of freedom. As a result of calculations amplitude-frequency characteristics of mechanical system are determined. The conclusion about the choice of the angular velocity of the eccentric rotation for creation of necessary external stimulating influence on the crushing system and improvement of conditions of evacuation of a ready product from a working zone is given. The resonance frequencies of firstand second-order system vibrations and the vibrator frequency are determined to achieve resonance frequencies. Keywords: vibration, modelling, Lagrangian equations of the second kind, grinding, crushing plant.","PeriodicalId":11445,"journal":{"name":"E3S Web of Conferences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57924178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equation of motion of the point of the paddy mound in the dryer drum 稻谷堆在干燥滚筒内点的运动方程

E3S Web of Conferences Pub Date : 2023-01-01 DOI: 10.1051/e3sconf/202338304061

B. Bekkulov

引用次数: 0