Our previous article, Retaining Wall: A Design Approach discusses the principle and concept behind and when and where to consider a retaining wall in our design.
We have learned the different checks against the mode of failures in the Retaining Wall Drainage Pipe retaining wall should be considered in the design. To further understand the designed approach, here is a worked example of the design of the retaining wall. This example is intended to be readily calculated by hand although a lot of structural spreadsheets and software such as Prokon are available. The purpose of this article is for the reader to fully understand the principle behind it.
Figure A. Consider the cantilever retaining wall with the cross-section shown in the above Figure A. Analytical Geometry and Variables. Before we proceed with the design, it is important for the designer to know the geometric variable and parameters of the retaining wall.
Refer to Figure A. The next thing to consider is the assumptions that we can make in terms of the geometry of the retaining wall 2 metres high zoom wall that we are designing. Given the height, retaining wall 2 metres high zoom, H of the retaining wall, we can assume or counter check our initial design considerations should at least according to the following geometric proportions:. Based on the above approximate geometric proportions, let us assumed the following parameters to be used in our design:.
Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article, Retaining Wall: A Design Approach. Based on our example in Figure A. Considering the Figure A. Notice that the pressures acting on the wall are equivalent to the area triangle of the pressure distribution diagram. According to Rankine and Coulomb Formula, the following are the equation in calculating the coefficient of pressure:.
There are two checks to consider the retaining wall 2 metres high zoom of the retaining wall. One is the check for an overturning moment and the other one is the check for sliding.
The weight of the retaining wall including the gravity loads within it plays a vital role in performing the stability check. The self-weight component of the retaining wall should be factored down or to be multiplied by weight reduction factor 0. With reference to Figure A. The sliding check should be carried out with reference to the Figure A. The nominal shear is equal to the lateral forces on the retaining wall, neglecting the effect of passive pressure which will give retaining wall 2 metres high zoom. For the thickness of the wall to be safe in shear, the ultimate shear, V u should less than the allowable shear, V allow as recommended by the ACI code.
The foundation bearing capacity usually governs the design of the wall. The soil, particularly under the toe of the foundation, is working very hard to resist the vertical bearing loads, sliding shear, and to provide passive resistance to sliding.
The bearing capacity of the soil should be calculated taking into account the effect of simultaneous horizontal loads applied to the foundation from the soil pressure.
For the footing to be safe in soil pressure, retaining wall 2 metres high zoom, the maximum soil pressure under working load shall be less than the allowable soil bearing capacity. The maximum soil bearing pressure under the footing considering 1m strip is:. If q umin is in tension check the required length otherwise ignore if it is in compression. The presented calculations above are actually too tiring to perform manually especially if you are doing a trial and error design.
Thanks to structural design soft wares and spreadsheetsavailable nowadays, our design life will be easier. Our team developed a user-friendly spreadsheet for the design of cantilever retaining wall based on the above calculation.
Grab your copy here! What do you think about this article? Tell us your thoughts! Leave a comment on the section. Subscribe to our newsletter to be updated with the latest posts or follow us on our social media pages on the below icons. You can use the parameters written in section 2 of this article and confirm whether the thickness Retaining Wall 3 Feet High School is adequate using a shear check. This is a helpful guide to Retaining Wall design.
For example, Pp is not substituted correctly. I have not checked further than. It Retaining Wall Waterproofing Bunnings Australia would be worth double-checking the spreadsheet you are selling as this is a dangerous error that would show a retaining wall having a higher capacity than it actually does.
Thanks for pointing. We have checked and found out that that is merely a typo error and it has been updated accordingly. We have retaining wall 2 metres high zoom double-checked the attached spreadsheet and it is not affecting the results as we conservatively neglect the effect of passive pressure in the calculation.
Can you explain why the height of the surcharge is only 0. Also ,would you be able to explain how is the d in critical shear calculated? That will give us 1. In this example, a 0. Here some worked examples of the design of the retaining wall are described. I like the I have also found this resource Rfmasonry. This is just a typo error and we corrected this according to 12KPa as per the retaining wall 2 metres high zoom spreadsheet. Your email address will not be published.
Ross October 11, at am. Intisar October 22, at am. Helpful guide. Which section in ACI the calculations are referred to? Edgar October 29, at am. Hello Can you explain why the height of the surcharge is only 0. Its very detailed examplethanks for. Edgar October 29, at pm.
Rosina October 29, at pm. Very helpful information. Thanks Rosina! Renzo January 14, at am. Thanks in advance! Ant April 1, at am. You need to use effective stress when doing the calculation. KL June 9, retaining wall 2 metres high zoom, at am. Charles July 9, at pm, retaining wall 2 metres high zoom. I find this helpful. Samir Khan December 30, at am. In the overturning moment, you have this factor: W1 0. PS I purchased the spreadsheet!
Ranjana January 8, at pm. Leave a Comment Cancel reply Your email address will not be published. All original content on these pages is fingerprinted and certified by Digiprove. Go to mobile version.
Images videos of a Eagle Dance, non-bending immaculate steel as well as can be employed for the large accumulation of gardening as well as landscaping tasks. I celebrated the 60ish male scooting along in the wheelchair as well as weeding his 1-acre grassed area ! Your front doorway contingency be really simply identifiable, similar to switching to organic, retaining wall 2 metres high zoom.
A cubic back yard of mulch or topsoil which is widespread dual inches low covers about 120 block feet (or about 80 block feet during the abyss of 3 inches).
|
Define Underwater Landscape Backyard Design Diy Quotes Coastal Landscape Canvas Quiz |
