Getting Stuck, Caterpillar out

We have an asphalt plant we haul sand to, one of APAC's . I absolutely hate hauling into their sites. The wheel-loader operators are morons. They don't know how to maintain the areas so frame-less end-dumps can dump on somewhat level ground. If that's not enough, it is always waaaay too soft.
We're suppose to back up to within a couple of feet of the pile, however it's just not possible. The past week I've got stuck every time. Each time I've had to get myself out. Why? Because my tow-hook or pintle hitch's pin bent when the loader tried pulling me out. Yep the pin bent, and pulled through the bumper.
Here's a couple of pics showing how the tractor and trailer sinks. I just back until it stops, can't go any further and can't pull forward.

This too, is a place where dispatcher does not want to hear about not level. I think part of the reason for this is, he's also a broker. He gets paid not only his salary, but his broker fee.

 

Ground is fairly solid around rock piles. On Friday they had another pile for the type of sand we were hauling in. The ground was real hard where we were to dump. Extremely bumpy, but much easier to dump.
You're correct about not wanting to deal with stuck trucks. Most of the time they just drove around us, until we had to use them to pull us.

 

Last Monday, I done just that. I had the bed in the air, the sand was packed against the tailgate, axles and worst of all the brake pods. I had to dig the sand away from the pods so I wouldn't tear them off. This is when the pin to my pintle-hitch bent. Loader couldn't pull me out. That's how stuck I was. I had called dispatch, and he ordered a tow-truck. However I wasn't going to sit and wait for who knows how long for this tow-truck. So I continued to work on caterpillaring. Finally one last attempt, setting the parking brake, I managed to get the hydraulics to pull the trailer. Before it would just slide the tractor backwards, with the brakes set.

It's a company truck, not mine. Most of the time dispatch will side with us, telling us not to dump. He says that he will make phone calls and rip someone's ###. However he also tells us to just get it dumped. So read between the lines, a little CYOA by the dispatcher going on. Then as I've mentioned before, either this or another thread, boss doesn't seem concerned about the trailer going down. So far no one has been fired or disciplined for that. He gets to collect insurance, and buys another trailer.
As far as dumping elsewhere, I have, at this same site, when we first started hauling into it. They didn't have the plant set up, just various piles. I couldn't get level anywhere close to the sand pile. So I dumped about 20' in front of it. Loaderman asked me to dump closer, while he was busy talking on his cellphone. In fact he was parked in my way. So proceeded to tell him that I'll dump anywhere I feel it's level and safe to do so. He has a bucket on his machine, and he needed to learn how to use it. If not I could show him how, since I've ran loaders before driving a truck!!

 

1. I always, always lock in the power divider when driving off of pavement, well except for a few county gravel roads. The ground here is very spongy even when dry. I don't know why the ground was hard in the one area on the other side of the "new" sand pile.
2. I always start my dump, by setting the trailer brakes using the trolley bar since it applies more pressure then the "red knob" emergency valve. So I always walk the tractor back first. I have a certain depth I watch for the material to be at coming out of my trailer before switching from walking the tractor to walking the trailer forward.
The trailer and tractor tires would start sinking immediately. In fact, it determined where I dumped, since I could no longer move without spinning, ie; hoppity-hop. I also like to flatten/level where I dump in these areas, by driving forward and back a couple of times if possible. However not so in this area.
3. The rear trailer tires would sink more when the bed raises, causing the "dishing" under them, and the sand being piled up in front of them when I attempted to pull the trailer forward.
4. I was not the only one getting stuck. Drivers with 10+ yrs with this company pulling only end-dumps had the same problem.

The information you provide is excellent for those inexperienced drivers just starting to pull end-dumps. Thank you for your input.