"hagman" <google@[EMAIL PROTECTED]
> wrote in message
news:90cd1d1e-9854-4a18-995f-a763ca857a02@[EMAIL PROTECTED]
> On 21 Mai, 14:15, "Jim Langston" <tazmas...@[EMAIL PROTECTED]
> wrote:
>> Larry Hewitt wrote:
>> > "Jim Langston" <tazmas...@[EMAIL PROTECTED]
> wrote in message
>> >news:4PfYj.7$N06.5@[EMAIL PROTECTED]
>> >> Jerry Beeler wrote:
>> >>> A cylindrical pipe has a radius of 100 inches and a length of 30
>> >>> feet. The pipe was run under a road, but, due to an error it had to
>> >>> be
>> >>> removed and dropped 18 inches below it's original position.
>>
>> >>> What is the volume of the void that is left from the original
>> >>> position?
>> >>> Note: This void has to be filled with $200/square yard material so
>> >>> I have to be accurate.
>>
>> >>> Thanks!
>>
>> >> Are you sure you need to fill up the volume at all? It sounds to me
>> >> like you are thinking that once you dig out the pipe and put a new
>> >> one lower down you will have a void where the old pipe was. But
>> >> consider, you are going to have to remove as much material where you
>> >> put the pipe lower down. You are going to have to remove the dirt
>> >> where you are going to place the pipe lower down and put it...
>> >> somewhere. So actually when you are done moving the pipe down you
>> >> won't have any void.
>>
>> > Fill removed from the trenching would not be able to be compacted
>> > enough to sup****t a road. The void will need to be filled with a
>> > grout, cement, or similar material that can flow to fill all
cavities.
>>
>> Well, then your problem is compounded, isn't it? Because you are going
>> to
>> have to dig down to the pipe to remove it, and aren't going to be able
to
>> reuse the fill over it, right? So you will need to fill with material
>> all
>> the way down to the bottom of the pipe. Or are you somehow going to be
>> able
>> to reuse the material?
>>
>> >> --
>> >> Jim Langston
>> >> tazmas...@[EMAIL PROTECTED]
>>
>> --
>> Jim Langston
>> tazmas...@[EMAIL PROTECTED]
>
> If it's really expensive, some "micro-surgery" might pay out, i.e. you
> dig/drill a negligibly small hole down to the pipe, let nanobots
> remove 18 inches of material below the pipe; then the pipe is lowered
> by 18" and the void above it, which has a volume of 100" x 18" x 30',
> is filled through the little hole with that expensive material. If the
> hole is thin enough, filling it should be cheap.
Except the void is not rectangular, it is moon shaped.
Trace a quarter, move it 3/16 in and trace it again. The top arc is the
void.
Larry
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