Analysis of Rainfall Effect to Slope Stability in Ulu Klang, Malaysia

Mukhlisin, Muhammad; Matlan, Siti Jahara; Ahlan, Mohamad Jaykhan; Taha, Mohd Raihan

doi:10.11113/jt.v72.4005

Cited by 20 publications

(16 citation statements)

References 26 publications

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“…The series of floods were unusual as the 2006 average rainfall return period was 50 years, while 2007 had more than a 100-year return period. Local weather changes are among the natural causes that triggered the flash flood [35,36].…”

Section: Floodsmentioning

confidence: 99%

Risks of Climate Change with Respect to the Singapore-Malaysia High Speed Rail System

Sa’adin¹,

Kaewunruen

Jaroszweski

2016

Climate

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Abstract:Warming of the climate system is unequivocal, and many of the observed changes are unprecedented over the past five decades. Globally, the atmosphere and the ocean are becoming increasingly warmer, the amount of ice on the earth is decreasing over the oceans, and the sea level has risen. According to the Intergovernmental Panel on Climate Change, the average increase in global temperature (combined land and surface) between the 1850-1900 period and the 2003-2012 period was 0.78 • C (0.72 to 0.85). But should we prepare for such a relatively small change? The importance is not the means of the warming but the considerable likelihood of climate change that could trigger extreme natural hazards. The impact and the risk of climate change associated with railway infrastructure have not been fully addressed in the literature due to the differences in local environmental parameters. On the other hand, the current railway network in Malaysia, over the last decade, has been significantly affected by severe weather conditions such as rainfall, lightning, wind and very high temperatures. Our research findings based on a critical literature review and expert interviews point out the extremes that can lead to asset system failure, degraded operation and ultimately, delays in train services. During flooding, the embankment of the track can be swept away and bridge can be demolished, while during drought, the embankment of the track can suffer from soil desiccation and embankment deterioration; high temperature increases the risk of track buckling and high winds can result in vegetation or foreign object incursion onto the infrastructure as well as exert an additional quasi-static burden. This review is of significant importance for planning and design of the newly proposed high speed rail link between Malaysia and Singapore.

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Section: Floodsmentioning

confidence: 99%

Risks of Climate Change with Respect to the Singapore-Malaysia High Speed Rail System

Sa’adin¹,

Kaewunruen

Jaroszweski

2016

Climate

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“…He also mentions that the ground water level also playing important role in triggering the landslide, which is always overlooks as one of the initial factors of landslide. (Mukhlisin et al 2015) analyzed 15 event of rainfall prompted landslides in Ulu Klang, and found that all of the event were triggered by landslide but some events casual factors were different that was inadequate slope design, improper design, construction method, poor maintenance of the internal drainage system, off slope and retaining structural soil type and slope gradient. In Malaysia most slope failure occurred by manmade slope development in hilly terrain areas, such as highland tower at kualampur in 1993, bukit lanjan rockside in 2003, taman zooview in 2006, and again bukit lanjan at 2014.…”

Section: Class 3 (Landslide Triggering Factors Investigation)mentioning

confidence: 99%

Landslide Disaster in Malaysia: An Overview

Akter¹,

Noor²,

Goto³

et al. 2019

ijird

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Introduction Nowadays, a disaster is a common phenomenon and a great concern all over the world. Large numbers of causalities, property damages, livelihood deterioration, destructions of habitat and many other destructive events take place when different kinds of natural and manmade disasters occur. In Malaysia various types of disaster are frequently striking every year. According to the report (Prevention Web 2014) Malaysia had faced flood (62.5%), storm (12.5%), wild fire (8.5%), landslides (8.3%), drought (4.2%), earthquake (2.1%) and mass movement (2.1%) during 15-years period (1990-2014). The report shows that not only flood and storm, but also landslide has great devastating effects on advanced contemporary societies around the world. This natural disaster causes huge casualties and massive financial losses, especially, in hilly areas. The United States annually faces economic losses of more than USD 2 billion and about 25 to 50 deaths (Li & Wang 1992) due to landslide. The economic loss in China caused by landslides is estimated to be more than USD 500 million. Landslides are common in hilly and mountainous areas in Malaysia too. During the period between 1963 and 2014, Malaysia had faced many major and medium landslide disasters which caused up to 500 fatalities in total as well

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“…Generally, it is expressed by the estimation of factor of safety (FOS), defined as the ratio of the available strength to the strength at failure. There is much research that studied the changes in factor of safety influenced by rainfall, extreme drying, vegetation or earthquake such as Mohd Taib et al [15], Mukhlisin et al [16], Altalhea et al [17], Mukhlisin et al [18], Mukhlisin et al [19], Harianto et al [20], Kristo et al [21] and Fan et al [22] work. In this paper, the stability of slopes is affected by the waste degradation where Babu et al [3] suggested that the value of safe safety factors to guarantee long-term slope stability of the landfill is 1.5-3.0.…”

Section: Factor Of Safetymentioning

confidence: 99%

Slope Stability of Landfill with Waste Degradation

Ismail¹,

Taib²,

Rahman³

et al. 2019

IJITEE

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Nowadays, a large amount of municipal solid waste (MSW) is generated due to the rapid urbanisation in developing countries leads to the demand for larger and higher capacity landfills. Bioreactor landfill technology has been introduced to accelerate the stability of landfill and to solve the issue of limited landfill area. However, the accelerated degradation of the refuse in bioreactor landfills also considerably changes the geotechnical characteristics of the waste in the landfill and thereby increases the concern for waste stability. Hence, this study aims to analyse the stability of both conventional and bioreactor landfill slope with the effects of waste degradation. Finite element method has been used in the slope stability analysis and the stability is presented by the factor of safety. The objectives of this study are i) to determine and assess the main parameter which influences the stability of the waste slope, ii) to determine the effects of waste degradation to the waste properties and iii) to obtain the factor of safety of the landfill slope using numerical analysis by finite element method. From the literature review, it is found that slope stability of a landfill mainly depends on the geotechnical properties of waste, such as moisture content, unit weight, shear strength parameters and hydraulic conductivity of waste. After the degradation process, engineering properties of field refuse are affected which includes the increased pore-water pressure and unit weight, decreased strength and lower hydraulic conductivity. Based on the analysis of conventional landfill slope stability by using Plaxis software, slope ratio of 1:3, 1:4 and 1:5 calculated safe with 1.69, 2.3 and 2.8 whereas the analysis of bioreactor landfill slope stability calculated safe only for slope ratio of 1:4 and 1:5 with 1.60 and 1.97. Moreover, the factor of safety for steeper slopes is lower and vice versa. From the parametric analysis, it is found that the full height of slope and unit weight of waste input affect the result analysis. This study is significant to evaluate the landfill slope stability with the effects of waste degradation and to ensure both conventional and bioreactor landfill slope stability for long periods.

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Analysis of Rainfall Effect to Slope Stability in Ulu Klang, Malaysia

Cited by 20 publications

References 26 publications

Risks of Climate Change with Respect to the Singapore-Malaysia High Speed Rail System

Risks of Climate Change with Respect to the Singapore-Malaysia High Speed Rail System

Landslide Disaster in Malaysia: An Overview

Slope Stability of Landfill with Waste Degradation

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