First, the answer to Vol. 23 (last week).
Thanks to those of you who answered!
The reason I chose this photo was to show the obvious contraction of the geomembrane that took place overnight – about 6-inches. With a late evening rain (which occurred at the conclusion of the previous shift), the drier subgrade is perfect for this illustration.
As I mentioned, I seem to find something new each time I look at this photo. As Emmanuel pointed out, the wet conditions are present which are more of an issue on the geomembrane, both for safety and quality. Likewise, Mike pointed out the lack of good housekeeping including tripping hazards, scraps of liner, the lack of rubsheets being used and the gas can on the liner.
One other noteworthy item I observed is the tape sticking off the edge of the geomembrane which was used to hold the geomembrane to the core during manufacturing. Installers and CQA personnel need to pay attention to this and make sure it is removed prior to seaming – I’ve had plenty of fusion wedge weld destructs fail that were tracked back to welding through tape! On the bright side – they weren’t stapled to the core!
In these blog posts, Do You See What Glen Sees, I will present a photograph or short video related to earthwork or geosynthetics construction and have you identify the significance of what you’re seeing.
It could be things being done correctly or incorrectly. Primarily, these will be things that impact quality.
In addition to my blog, I’ll post this content on X and LinkedIn. You can post your response on one of those two.
I’ll give you my thoughts on each photo or video when I post the next installment.
Do you see what I see? Or did you find something I missed? I’m excited to find out!
Here is the next installment. Take a good look. Do You See What Glen Sees?
Welcome to volume #24 of Do You See What Glen Sees?! For those of you here in the United States, it is our time for our annual celebration of Independence Day – be safe! I’ve spent way too many of them throughout my career admiring fireworks from the top of a landfill cap!
This photo comes with the holiday to serve as a good reminder to take preventative measures to prevent this from happening on your project. Since it is fairly straightforward, I’m asking for you to tell me the issue you see here, and what the proper remedy is in this case.
Post your response on X or LinkedIn.
