Study on Influencing Factors and Control Measures of Diaphram Wall Panel Trench

2012 ◽  
Vol 535-537 ◽  
pp. 1851-1854
Author(s):  
Jun Zhang ◽  
Huie Chen ◽  
Cheng Qiu Cai ◽  
Ming Yuan Shi ◽  
Huan Yan ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Control Measures ◽  
Diaphragm Wall ◽  
Wall Panel ◽  
Key Factors ◽  
Foundation Construction ◽  
Deformation Control ◽  
Slurry Wall ◽  
The Stability ◽  
And Control

The stability of the slurry wall in the process of slurry supporting into slot directly affects the stability of the pit. This paper analyzes the key factors for deformation control, researches the influencing factors on slurry wall stability during slurry trenching and concreting for diaphragm wall, and proposes control measures to control the stability of slurry wall and matters need attention, which is of great significance to guide the foundation construction.

Influencing Factors and Control Measures of the Saturation Line of Tailing Dams

2013 ◽  
Vol 790 ◽  
pp. 165-168
Author(s):  
Zhi Fe Song ◽  
Qun Wang
Keyword(s):  
Influencing Factors ◽  
Saturation Line ◽  
Control Measures ◽  
Future Research ◽  
Line Position ◽  
Tailing Dam ◽  
Tailing Dams ◽  
The Stability ◽  
And Control ◽  
Great Harm

Given that the current security situation of tailing reservoir is not optimistic in China, and the loss of stability of tailing dam has caused great harm to people's life and property, the article emphasizes the importance of saturation line position to the stability of tailing dam, and analyses several key influencing factors of the saturation line position, at the same time, some measures of controlling the rising of saturation line are put forward to improve the security and stability of tailing dams. In the end, it concludes with a discussion of future research consideration.

Stability Analysis and Control Measures of the Kim-Yun-Mine Collapse

2012 ◽  
Vol 594-597 ◽  
pp. 358-361
Author(s):  
Shan Shan Zhang ◽  
Yu Liang Wu
Keyword(s):  
Rock Mass ◽  
Stability Analysis ◽  
Stereographic Projection ◽  
Control Measures ◽  
Collapse Characteristics ◽  
Basic Characteristics ◽  
The Stability ◽  
Mine Collapse ◽  
And Control ◽  
Dangerous Rock Mass

Collapse is one of the major geological disasters all over the world and threats to life and property safety of people. To make a better understanding of the reason it occurs and how to deal with it, the Kim-Yun-Mine collapse is researched. There are one dangerous rock mass and two collapse accumulation body. The basic characteristics of the collapse is described clearly according to the geological exploration data, and the stability of the dangerous rock mass and the collapse accumulated body is analyzed in the way of engineering geology and stereographic projection. At last, we put forward comprehensive control measures based on the results of stability analysis and collapse characteristics.

Causes Analysis and Control Measures of Landslide on Expressway from Yangshuo to Pingle in Guangxi

2013 ◽  
Vol 353-356 ◽  
pp. 116-119
Author(s):  
Chan Juan Yu ◽  
Yu Dong Peng
Keyword(s):  
Transfer Coefficient ◽  
Reference Value ◽  
Control Measures ◽  
The Other ◽  
Retaining Structure ◽  
Treatment Measures ◽  
Stability Of Slope ◽  
The Stability ◽  
And Control ◽  
Coefficient Method

According to the analysis on engineering geological and hydrological conditions of landslide on expressway from Yangshuo to Pingle in Guangxi, the formation mechanism of the landslide was summarized. The stability of slope was analyzed by mechanical transfer coefficient method. Then two kinds of effective preventions and treatment measures are proposed: setting retaining structure after drainage, or unloading after drainage. These measures have reference value to the management of the other landslide.

Landslide Formation Mechanism and its Control Measures in Dabaolang

2014 ◽  
Vol 722 ◽  
pp. 419-422
Author(s):  
Peng Lv ◽  
Bao Yu Li ◽  
Yu Zhang ◽  
Yun Xun Zhang
Keyword(s):  
Prevention And Control ◽  
Evolutionary Process ◽  
Heavy Rain ◽  
Control Measures ◽  
Skid Resistance ◽  
Effective Prevention ◽  
Main Factors ◽  
Mechanism Of Landslide ◽  
The Stability ◽  
And Control

Through analyzing Dabaoliang geological characteristics, this paper discussed the factors of the mechanism of landslide in Dabaoliang area and simulated its evolutionary process. The paper could get some conclusions, and the factors of landslide are as follow: the stability of the slope which mainly composed by clastic rock not only depended on the performance of the mudstone layer but also the skid resistance of the sliding surface and the shape of slope. Under the influence of regional structure, the joint fissures which developed along the boundary of the landslide will connect the crack and benefit the permeation of the surface water. The heavy rain is one of the main factors caused the slope unstable and sliding. Provide effective prevention and control for prevention and control of projects.

Amount of Leachate Generated Factors and Control Measures

2011 ◽  
Vol 250-253 ◽  
pp. 1667-1670
Author(s):  
Ying Li ◽  
Ai Jun Guo
Keyword(s):  
Influencing Factors ◽  
Computational Methods ◽  
Landfill Leachate ◽  
Control Measures ◽  
The Common ◽  
And Control ◽  
Control Quantity

The influencing factors of landfill leachate are analyzed. This paper introduced the common computational methods for quantity of leachate generation, and put forward some measures and methods to control quantity of leachate generation.

scholarly journals Design and Implementation of a Quadcopter Based on a Linear Quadratic Regulator (LQR)

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Amevi Acakpovi ◽  
François-Xavier Fifatin ◽  
Maurel Aza-Gnandji ◽  
François Kpadevi ◽  
Justice Nyarko
Keyword(s):  
Coastal Zone Management ◽  
Linear Quadratic Regulator ◽  
Control Measures ◽  
The Internet ◽  
Linear Quadratic ◽  
Infrastructure Monitoring ◽  
Zone Management ◽  
Forestry Management ◽  
The Stability ◽  
And Control

This paper presents the design and construction and control of a quadcopter drone for Aerial Data Collection (ADC). The frame of the drone was designed using CadDian Software and the parts were printed using a 3D printer. The flight controller was based on Arduino board using an Atmega328p microprocessor with GSM, GPS and GPRS for sending data over the internet and also enhancing long range flight. A feedback control system was developed and tested to control the stability of drone. The proposed control strategy of the drone was tested for a case of pursuit of trajectory and also for speed of response and the findings were very positive confirming the appropriateness of the control measures for independent and autonomous flying with promising precision. This Unmanned Aerial Vehicle (UAV) fitted with IoT has the capability of collecting and sending data over the internet and therefore can be used in many applications including risk assessment, forestry management, urban planning, coastal zone management, infrastructure monitoring, post-disaster damage assessment and delivery of medical supplies.

scholarly journals A close-loop verification approach for pedestrian stability based on machine vision

2022 ◽  
Vol 355 ◽  
pp. 03037
Author(s):  
Rongyong Zhao ◽  
Ping Jia ◽  
Yan Wang ◽  
Cuiling Li ◽  
Yunlong Ma ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Machine Vision ◽  
Lyapunov Theory ◽  
Control Measures ◽  
System Stability ◽  
Random Errors ◽  
Public Places ◽  
Crowd Management ◽  
The Stability ◽  
And Control

In public places, it is significant to analyze the stability of the crowd which can support the crowd management and control, and protect the evacuees safely and effectively. The numerical analysis method of system stability based on Lyapunov theory suffers problems that it is difficult to avoid random errors in the initialization of pedestrian density and velocity, as well as cumulative errors due to time increasing, limiting its application. This study adopts a complementary model of theoretical numerical analysis and machine vision with a parallel convolutional neural network (CNN) model. It proposes an approach of stability analysis and closed-loop verification for crowd merging systems. Thereby, this research provides theoretical and methodological support for planning of the functional layout of crowd flow in public crowd-gathering places and the control measures for stable crowd flow.

scholarly journals Effects of medical resource capacities and intensities of public mitigation measures on outcomes of COVID-19 outbreaks

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xia Wang ◽  
Qian Li ◽  
Xiaodan Sun ◽  
Sha He ◽  
Fan Xia ◽  
...  
Keyword(s):  
Prevention And Control ◽  
Control Strategies ◽  
Control Measures ◽  
Mitigation Measures ◽  
Effective Control ◽  
Medical Resource ◽  
Key Factors ◽  
Medical Resources ◽  
Detection Rates ◽  
And Control

Abstract Background The COVID-19 pandemic is complex and is developing in different ways according to the country involved. Methods To identify the key parameters or processes that have the greatest effects on the pandemic and reveal the different progressions of epidemics in different countries, we quantified enhanced control measures and the dynamics of the production and provision of medical resources. We then nested these within a COVID-19 epidemic transmission model, which is parameterized by multi-source data. We obtained rate functions related to the intensity of mitigation measures, the effective reproduction numbers and the timings and durations of runs on medical resources, given differing control measures implemented in various countries. Results Increased detection rates may induce runs on medical resources and prolong their durations, depending on resource availability. Nevertheless, improving the detection rate can effectively and rapidly reduce the mortality rate, even after runs on medical resources. Combinations of multiple prevention and control strategies and timely improvement of abilities to supplement medical resources are key to effective control of the COVID-19 epidemic. A 50% reduction in comprehensive control measures would have led to the cumulative numbers of confirmed cases and deaths exceeding 590,000 and 60,000, respectively, by 27 March 2020 in mainland China. Conclusions Multiple data sources and cross validation of a COVID-19 epidemic model, coupled with a medical resource logistic model, revealed the key factors that affect epidemic progressions and their outbreak patterns in different countries. These key factors are the type of emergency medical response to avoid runs on medical resources, especially improved detection rates, the ability to promote public health measures, and the synergistic effects of combinations of multiple prevention and control strategies. The proposed model can assist health authorities to predict when they will be most in need of hospital beds and equipment such as ventilators, personal protection equipment, drugs, and staff.

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