This study investigates the variations in shear strength parameters of red clay under different clay content and pH levels through direct shear tests. It analyzes the effects of normal stress, clay content, and pH on shear strength, cohesion, and the internal friction angle. The research reveals that with an increase in normal stress, the shear strength of the soil gradually increases under the same clay content and pH conditions. Under the same clay content, as the pH level becomes more acidic ...

Civil Engineering 

The Gambia faces challenges in its energy sector, with limited access to electricity, a reliance on private generators and non-renewable energy sources that produce noise and emissions. These issues contribute to climate change and global warming. To address this, the country plans to implement national energy efficiency strategies in May 2022 to combat energy poverty and improve economic and social well-being. The paper focuses on two key aspects: providing recommendations for policymakers and ...

Architecture  Civil Engineering 

In order to collect image data in real time, the main control chip based on Cyclone IV is the EP4CE10F17C8 as the main control chip. The image information is obtained through the camera and displayed on the VGA screen. The OV7725 camera is initialized by the SCCB bus, obtained the YUV data stream, and the video flow is cached to the SDRAM. Display through VGA. The YUV data obtained from the OV7725 sensor is used in FPGA to design circuits with Verilog language, convert RAW into RGB signals, and ...

Civil Engineering  Computer Engineering 

The investments of power transmission projects are steadily increasing in recent 20 years. However, it is rare to investigate the suitability of the project delivery methods for power transmission projects. In fact, it is not an easy task to select an appropriate project delivery method as a large amount of ambiguous and uncertain information exists. This paper thus aims to develop an uncertain multiple attribute decision making (MCDM) model to help owners of power transmission projects to choos...

Electric Engineering  Civil Engineering 

In 2009, the province of Ontario, Canada enacted the Green Energy Act. Those appealing an approval of a Wind Power Plant (WPP) were challenged by a high burden of proof—proof of causality. The requirement was that, before the project was constructed and operating, it must be shown that it “will cause” serious harm to human health, or “serious and irreversible harm” to plant or animal life, or the natural environment. Methods: This ethicsreviewed study used the Grounded Theory methodology. It con...

Sociology  Civil Engineering 

Foundation pit collapse is a continuous failure process. One of the main characteristics of foundation pit collapse caused by internal support failure is that it will lead to the destruction of the enclosure structure. Based on the actual foundation pit engineering, this paper uses the finite element software Midas-GTS NX to establish a three-dimensional foundation pit model. Based on the principle of component removal method and nonlinear dynamic analysis method, the influence of the inner supp...

Civil Engineering 

The bidirectional compression bending members exhibit interactions among their strength, stiffness, and plastic deformation capacity in their two principal axis directions. Unfortunately, there is limited research on the performance of H-shaped cross-section steel members under bidirectional compression bending controlled by local instability, making it imperative to develop further research in this area. To address this issue, a finite element model was established to investigate the nonlinear ...

Civil Engineering 

This study highlights the of wood chip on the physical and mechanical characteristics of concrete. The objective is to promote iroko wood chip in the construction sector. The aim is to incorporate chip into concrete and to study its influence on the physico-mechanical properties of concrete. To conduct this study, the materials used were first characterized. Secondly the concrete was formulated and the concrete specimens were poured. Finally, the physical and mechanical characterizations of conc...

Civil Engineering 

Urban subway tunnel engineering in reducing travel inconvenience and effective utilization of urban underground space has played an important role. Due to the complexity and diversity of metro tunnel construction, the construction safety accidents occur frequently, so the choice of the reasonable construction method to improve its security and the economy is particularly important. In this paper, the construction steps, construction characteristics and applicable conditions of the common subway ...

Civil Engineering 

The Udwadia-Kalaba formulation is proposed to model the longitudinal dynamics of a road vehicle. To render complex situations such as spinning on a slippery road, an original approach is implemented by the relaxation of constraints in the Udwadia-Kalaba formulation for the rolling of a wheel. In a combined approach of both slip and stiction in the contact section, the constraints equations of pure rolling are associated with stiction. Such constraints are lifted as slip occurs to allow the dynam...

Civil Engineering