New standards about soil types - V - set-back from excavations are now with us. I am personally happy that whenever the 1 to 1 rule has been discussed there have been no dissenting opinions as to its worth and wisdom. We all agree that this is one rule that no one wishes to \'cheat\' on.

The folks that are in the excavation business have now decided that the one to one rule is a conditional, absolute minimum; and in many cases should be changed to

One and one half feet back

for

every one foot deep. (minimum)

When loose or granular soil is present, or the soil is somewhat saturated an even greater distance may be prudent.

I will try and post more specific information tomorrow. The reason I brought it up this evening is in hopes that any of you that find yourself in such a situation tomorrow are now forewarned.

So check out the soil type, be on the skeptical side of caution until I can post the new guidelines.

Thanks........... and; HEY, lets be careful out there!!!

;~)

The one to one rule.. In your opinion If the bank is cut on a 45% slope How close can you push it. I have a site where I have the 50m parked one side I can\'t even open up, the other side I\'m 2ft from the start of the slope down, it\'s about 8 ft down The ground is frozen down a couple of feet. I have the boom flat as a pancake (i\'m still to short)

We will have to lay hose down on the back wall to pour it. 

There is no where else to sit. When the thaw starts what should i say to these kind folk when we start with the upper floors. and the ground won\'t support the weight.(base underneath now is frozen saturated sand, clay mix)

It is in the core of the city,, no room, trees beside me, hydro lines beside me, mud truck have to do a 4 point turn to get to me.

Thankfully frost is saving me now I just hope somone has an Idea when the warm weather comes back.

Ideas would be great,

Thanks

Royal Concrete Pumps

All measurments are made from the \"toe\" of an excavation. important note: this is true and correct if there are no undercut or \'dished out\' areas that interrupt that line. please read ACPA SAFETY MANUAL. My copy is (version 5.0.1) and the information is on page #23.

Marcus is correct about those steel plates (or crane pads) being your best defense against a bad result. PLEASE talk to the sup\'t about the soil and let him know your thoughts about the steel pads. 99.9% of all contractors in that situation will respect your views and appreciate your concern; the other .01% need to buy their own pump, as no professional pumping company will operate under those unsafe conditions.

All jobs of any size and scope have pre pour meetings, attend them ot request that they be held. Smaller jobs must be delt with as they enter the schedule.

PLEASE REFER to \"Risk Management\"  post.

Don\'t spend time thinking about reasons that you can not live and operate safely; spend your time looking for ways that you can.

ps.

Betting on \'frost\' to better your soil is a fools bet.

The Situation:

1. Site was subbed out by another pumping company, there biggest is a 40m.
2. Arrived on site Concrete was there.
3. I have never pushed the limits of something I don\'t know, I ask to see if others would do the same pour.

I took some pics with the phone sorry for the poor quality.

If they don\'t show i will add them to my profile.

email me the picture i will put them up.

todd@concretepumping.com

use extra dunnage to spread out the weight when it thaws

Thanks for making this post Bob, i hope it saves somebody from flipping over their pump.