Robertofg,
You could drill a hole through the timber pile and place a rebar in it and cast it into the grout at the toe. Now your timber pile uplift force will also be resisted by the shearing of the timber and rebar. I have used these type of detail in pole frame buildings. I do not have the...
sunpat,
The geo's recommendations must address foundation requirements better than you stated above. Ask what depth the adequate soils are founded at, and other items such as what are the compaction requirements of stone, just leaving it to a contractor to say compacted can lead to problems...
pmkPE,
You will have to look at the stresses from the footings (if used) of the new addition and how they impact on the block wall. Just placing footings a few feet down adjacent the old block foundation wall may not be acceptable. In some cause like this you may have to place the new...
crstrode,
I am not sure about your question. But, if the contractors engineer had completed the stability assessment and design of the walls, then it may be best to discuss your questions with them. The distance from the toe of the wall or slope to the retaining wall depends on site and soil...
Rancorinco,
Just a note, do not think that the lateral soil stress will not "kick in". There are lots of people who are killed every year due to standing soil cuts and think it will be OK to work beside. Without looking I can recall a handful of people killed while working adjacent to over...
Rookie2,
Best to have a look though ASTM D698. But overall, if the granular was compacted and the density was not impacted by seasonal changes then loss of moisture would not necessaryly decrease dry density value it can increase it. I am not sure what you mean by 88% to 96% depending on...
burao,
Yes you could end up with higher values if you used hollow stem augers rather than solid stem, but not always. With solid stem augers you may not have placed the SP on the native sands but rather on slough from the side walls of the bore hole. The reliability of the data depends on...
CED
?
You should evaluate the site based on slope stability. But you most likely will find the impact from the development on stability to be negligible. Toe erosion may not just be caused by wave action, soil (toe) softening may also occur as a result of high water levels, thereby causing...
SkiOn1,
You should just hire a local engineer to do a test hole and provide the required design drawings to a local contractor or yourself. But, inform the engineer what you are planning, say you will be doing the work over xxx time frame, then design details can be best fitted for situation...
evenbetter,
The 4.5 ft away from the toe of the MSE wall should not be a problem, but you will need to assess soil conditions to ensure there will be no problems during drilling or during the pouring of the concrete. A fast set concrete may be required depending on site conditions, such as the...
jeansa,
I assume the old foundation is on a strip footing given it is stone. The connection detail could be completed different ways, but you will still have the hinge/week point at the interface. The footings in the old and new may not move the same, and therefore you should expect...
emceditor,
Did you check the blocks to ensure no manufacture defects? This would not take much time or money, and I would check because the subcontractor will most likely be looking for others to share in the cost of reconstruction.
regards
elfman,
Do a review of the information on the topic of retaining walls in the form. Lots of references given.
A design of a retaining wall should be completed by a person who practices in this field. Best to contact a local who can aid you in the design and provide advice as required. This...
m1e9r5c6,
You have a few options,
1st, if you could live with the existing movements then you may be able to tie back wall to prevent further movements.
2nd, soil removal then jacking can work, but most likely the wall is already cracked if it has moved any noticeable amount. And you will...
facca,
BigH is correct at when global stability should be completed. However, I have come across projects where global stability is left to the contractor. This creats a problem if the contractor does not understand what they are to do before they bid. In the furture at any time you...
Krautso,
If you are the one writting the tender you have a lot of control. You need to outline what you want the product to do and what is important so you get what you want. In the tender you could then start to specify specific properties, so if you want concrete block with opening, say so...
jcali,
If you plan to use tie backs through the wall you will have to ensure the anchors are installed past the soil wedge behind the wall. I am not to sure if the use of plates or screw anchors are the best since you will have to remove or drill out large holes in blocks (depending on size of...
jcali,
Have you evaluated strapping the wall with steel angle iron and anchor bolts held in place via epoxy? We have used and proposed the above in a few situations were laterial soil pressure on house basement walls (cast concrete and block) became a concern.
regards,
Grouser,
I do agree with the statistical approach, but like Focht3 said, on some but not all jobs. We have worked on a few jobs which used statistics to pay out contractor bonuses, and these jobs do require full time inspection. Statistics is not used more (I think) due to cost. It does...
