Parametric Study Of Stability Of Pond Ash Embankments

The results shows us that the hypothesis between the river Loughton brook and the erosion shows that it gets wider and deeper due to many reasons such as vertical erosion, lateral erosion, hydraulic action and abrasion of rocks.

There are six different types of water erosion: splash erosion, sheet erosion, rill erosion, gully erosion, valley or stream erosion, and bank erosion. Splash erosion is when raindrops hit soil and small soil particles are displaced. Sheet erosion is when raindrops remove soil in thin layers. During rill erosion, small concentrated flow paths are created. “These paths create a sediment source and delivery system for hillslope erosion. Areas where precipitation rates exceed soil infiltration rates are more prone to this type of erosion. During gully erosion, water flows in narrow channels during or after heavy rains or melting snow. The gullies can erode to considerable depths. Valley or stream erosion is created by water flowing alongside land. It extends downward, deepening a valley, and extending the valley into the hillside. This occurs more frequently

Stephen F. Austin State University (SFA) has a gorgeous, nature filled campus. While visiting SFA, students are able to see why lumberjacks are so proud of their campus. Unfortunately, there is one place on campus that is just so grotesque that many avoid it entirely, the Ag pond. The Ag pond has the potential to be a beautiful spectacle to not only students but prospective students. The solution is simple. Create a group of students and faculty under campus sustainability to maintain the Ag pond. To limit the pollution of the Ag pond, the campus sustainability could dredge and clean, then in return make the pond beautiful again.

Complete this week’s lab by filling in your responses to the questions from Geoscience Laboratory. Select answers are provided for you in red font to assist you with your lab work. Although you are only required to respond to the questions in this worksheet, you are encouraged to answer others from the text on your own.

In the LULC/Soil/Slope tool box, the last option is slope tab. User has to select to number of slope classes for the watershed. Two options are available to define the slope discretization in the slope definition tool box. First one is single slope and second one is multiple slopes. If user select single slope in the tool box, it creates slope range class 0-999%, if user selects multiple slopes, the tool allows to create 5 classes. For the kaddam watershed five slope classes has been selected in the tool box. The classes are 1) 0-5% 2) 5-10% 3) 10-15% 4) 15-35% and 5) 35-9999%. The slope map of the kaddam shown in the

“Drainage patterns, the hilliness of the ground, the range of soils, the nature of the bedrock,

The purpose of this paper is to define karst topography as it appears in the United States, to illustrate how natural chemical processes facilitate sinkhole development, and to present a brief overview of how modern geotechnical and hydrogeological specialists are attempting to solve the sinkhole problem through innovative engineering design and land study. Ultimately, the goal from an engineering perspective is to understand karst and sinkholes on a fundamental level so that a variety of case-by-case solutions may be made available to keep the public safe. This is certainly one geological problem where the stakes are high, and humankind is competing against the very ground it stands upon. The question is: Will filling holes in engineering knowledge translate to preventing sinkholes from causing any more damage than they already have?

Site drainage management is a very important part of the design of footing system. It is because the site drainage could influence the success of the footing system, the maintenance of the site drainage influencing the economic life of the building and the site drainage plan is required to be documented (AS2870, 2011). In the AS2870, there is a detailed drainage requirement helping owner-builders to know how to manage drainage and the several factors influencing the site drainage.

Recent decades have seen an increase in the amount of water flowing into the reservoirs, primarily due to increases in impervious surfaces. “Of the 10 largest pools that have accumulated in the reservoirs, nine have occurred since 1990 and six of those were since 2000.”21 In 2009, the dams of the reservoirs underwent an evaluation. They were classified as Dam Safety Action Classification (DSAC) 1 Dams, meaning at extremely high relative risk for failure when considered with the potential life and economic consequences. The embankment permeability and strength and the outlet structures were seen as areas of

With the tremendous loss of life and destruction of property that resulted from Hurricane Katrina, the American Society of Civil Engineers and the U.S. Army Corps of Engineers (USACE) began redesigning and implementing new hurricane prevention system guidelines. Through extensive studies, it was evident that the structures for the levees were constructed on weak and compressible soil. “Although the geology of the area was relatively well known and borings taken were reasonably adequate for characterizing the variety of conditions in the area, the spacing could have missed local anomalies in soil type and strength” (USACE I-119). As a result, geotechnical engineers suggested a

If the length of the incline plane increases then it will potentially take less force for the Aspire crew to lift and complete the task. The amount of work input varies on the length of the inclined plane the longer the ramp is, the less force will be needed to be exerted in order to lift the stone. Through a complete understanding of the concept through my research it is my understanding that the incline plane will decrease the force being applied but nevertheless it will increase the distance.

The slope conditions worsen more while doing maintenance works. The slide might grow bigger after signing contracts.

Wind Sliding: how the wind works up parallel pressure that may result in foundation 'home sliding'

Trial Pitting – Trial pits can easily be performed by hand but it will take triple the amount of time and you won’t be able to get a good depth to get a good samples. Trial pits are usually dug mechanically because it is finished much faster and can be dug a lot deeper. Trial pits are normally excavated at 4.5m deep as this provides a good insight of what the foundations will be sitting on and it provides information if deeper foundations are needed. The advantages of machinery is that greater depths can be achieved which would result in a more detailed soil sample test etc. A disadvantage of this would be minor ground disturbance which could cause problems.

When a strip foundation is to be used on a sloping site the most economic solution is to use a stepped foundation which will reduce the amount of excavation, construction under ground, backfill and trench support. The provision of stepped foundations following the line of the ground requires each step to be between 150 and 225millimetres in order to accommodate brick or block courses. The lap of concrete at the step should be not less than the depth of the foundation concrete and never less than 300millimetres whichever is the greater.