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Technologies of =
creation of=20
holes (equipment) |
Diameter of the =
formed=20
hole |
Dredging on a=20
surface |
Bentonite is used =
for creation=20
of holes |
The used equipment =
for hole=20
creation |
Quantity of=20
workers (min.) |
Possibility of use =
of the=20
given technology for repair of =
pipelines |
At creation of =
holes the=20
liquid (installation of the is horizontal-directed creation of =
holes) is=20
applied |
max.-1250=EC=EC=20 |
Yes |
Yes |
Installation for =
creation of=20
holes. Hydrostation. Systems: preparations and =
regenerations -=20
for bentonite. |
3 = people |
No |
Puncture (Hydraulic=20
installations) |
max.-350=EC=EC |
No |
No |
Installation for a =
puncture.=20
Hydrostation. |
2=20
people |
Yes |
Punched hole=20
(pneumopunches) |
max.-250=EC=EC |
No |
No |
The compressor. =
Starting=20
device. Winch. |
2=20
people |
Yes |
Drilling of holes by a=20
chisel. (tunnel=20
micro-shield) |
max.-400=EC=EC |
Yes |
No |
Installation for =
drilling.=20
Hydrostation. |
3=20
people |
No |
(The unrolling =
device of=20
holes) |
max.-1000=EC=EC |
No |
No |
Installation for =
creation of=20
holes. Hydrostation. |
2 = people |
Yes |
The new =
company,=20
possibly, will compete between two manufacturers of following equipment: =
the=20
first are - manufacturers of the pneumopunches, the second are - =
manufacturers=20
of the equipment for the directed creation of holes.
Now machine tools =
for creation=20
of holes of the different sizes from so-called microsystems to =
large-sized=20
systems represent in the market about 24 companies, also a considerable =
quantity=20
of firms =96 offer the functional equipment.
Length of =
holes and=20
applicability of various types of the equipment of the is=20
horizontal-directed creation of=20
holes
Equipment=20
type |
Length of a hole,=20
m |
Diameter of a =
hole,=20
mm |
The size of the =
area of=20
installation of the machine tool, m |
Applicability area |
Microsystems of =
the is=20
horizontal-directed creation of holes |
max.-46 |
max.-100 |
0,9=F51,5 |
Connection of =
lines of=20
maintenance of buildings with the main=20
communications |
Minisystems of the =
is=20
horizontal-directed creation of holes |
max.-180 |
50 - = 300 |
0,9=F54,6 |
Linear =
installation and the=20
device of crossings of the main =
communications |
Average systems of =
the is=20
horizontal-directed creation of holes |
120 -=20 600 |
max.-600 |
1,2=F54,9 |
The underwater =
communications,=20
ecologically sensitive zones, =
motorways |
The big systems of =
the is=20
horizontal-directed creation of holes |
more = 300 |
max.-1500 |
3=F518 |
The underwater =
communications,=20
ecologically sensitive zones, motorways, runways of=20
airdromes |
Abroad =
for=20
installation of communications without trench creation widely use=20
pneumopunches.=20
The=20
price for a pneumopunch, depending on diameter, fluctuates from 5000$ to =
25000$.=20
Unsatisfactory work of this device consists in the following: at a =
meeting with=20
stone inclusions the pneumopunch changes a trajectory of a created hole =
and=20
builders often lose=20
it,=20
speed of creation of a hole is less than with use of the unrolling=20
device.
=20
As to the equipment =
of the is=20
horizontal-directed=20
creation of holes =
which is=20
made exclusively abroad, it is very expensive equipment in comparison with =
offered=20
installations. For example, the most widespread models of installations =
of firm=20
- =ABVERMEER=BB are estimated from 150000$ to 380000$.
Small-sized =
installation of=20
firm - =ABDITCH WITCH=BB is estimated in 102000$.
The smallest model =
of firm -=20
=ABTRACTO-TECHNIK=BB is estimated in 120000=AA.
This equipment =
expensive and=20
its purchase is possible not for all.
=20
The cost price of =
works with=20
use of such equipment above, than with use of technology of creation of =
holes by=20
the unrolling device. It occurs because in technology of the directed =
creation=20
of holes use bentonite. =
Its expense=20
in the course of work is considerable, that, in turn, and defines high =
cost of=20
creation of a hole.
Bentonite=20
=93STÜWAMIX=94, its=20
expense and cost for various types of the earth at hole creation =
on length=20
of
Parametres |
Very steady=20
dense clay |
Viscous clay, loam =
sated with=20
water |
Sand, sand with =
the loam, very=20
sated with water |
Large sand, small=20
pebble |
Large pebble, =
quicksand, peat=20
mixture |
The expense of a =
dry mixture=20
on 1=EC3 waters, =
kg |
20 |
23 |
25-29 |
30-32 |
33-35 |
Bentonite=20
cost, in $ US Æ400mm/L100m=20
|
800-1000 |
870-1130 |
1100-1430 |
1210-1575 |
1325-1720 |
Bentonite=20
cost, in $ Æ600=EC=EC/L100=EC |
1700-2210 |
1955-2540 |
2465-3200 |
2720-3535 |
2970-3860 |
Bentonite=20
cost, in $ US Æ800=EC=EC/L100=EC |
3020-3925 |
3470-4515 |
4375-5690 |
4830-6280 |
5280-6870 |
At installation of=20
communications without trench creation, technologies are traditionally =
used:=20
hole drilling using =
a=20
liquid, a =
puncture, a=20
punched hole, a drilling of holes by a=20
chisel.
In comparison with =
other=20
methods rolling has =
a number=20
of advantages:
1. =20
Unrolling devices of =
holes are=20
ecologically safe - they do not create: noise; harmful dynamic =
influences on the=20
person, on structures of buildings and in environment.
2. =20
Further the =
unrolling device=20
can be equipped by systems of automatic control with visual supervision =
of its=20
movement on the monitor.
3. =20
The unrolling device =
allows=20
creating holes in diameter of one meter, that considerably expands area =
of its use.
4. =20
Use of the unrolling =
device=20
gives considerable economic benefit.
The offered =
equipment for=20
creation of holes is cheaper than the equipment applied at use of other=20
technologies. Besides, at the expense of economy of the electric power, =
water,=20
quantity of workers and so forth, the cost price of creation of one =
meter of a=20
hole is less, than at work with the nearest =
analogues.
It is =
very=20
important to consider economic benefit of carried out works, choosing =
technology=20
of installation and repair of communications.
We=20
understand, - that use of the =
unrolling=20
device of holes, there should be on economic indicators above, than use =
of other=20
technologies.
Economic efficiency =
of=20
technology with use of the unrolling device of holes consists in the=20
following:
=B7 =20
Reduction of terms =
of creation=20
of holes;
=B7 =20
Decrease in volumes =
of=20
excavations;
=B7 =20
Reduction involved =
for=20
manufacture of creation of holes of technics and the special=20
equipment;
=B7 =20
Reduction of the =
working=20
personnel for creation of holes.
High =
speed of =
creation of=20
holes (with intermediate operations - to a 25m/hour).
High =
accuracy of =
creation of=20
holes (a deviation from an axis on distance 10=EC - 2=F1=EC).
Uniqueness=20
there where use of any =
liquids for creation of holes is forbidden - underground =
garages, the=20
airports, etc.
Ecological=20
safety - they do not =
create noise=20
and do not create vibration for constructions, it is very =
important at=20
works in city conditions and the enterprises.
Work in compact city conditions, for =
example:=20
in city wells (replacement of communications), in cellars=20
(strengthening of the bases of constructions),=20
etc.
In comparison with =
technology=20
=96 =ABis horizontal-directed hole drilling using a liquid=BB (HDD), use =
of technology=20
of creation of holes by the unrolling device, does not demand =
acquisition of=20
systems: mixture giving=92s, preparations and regenerations - for=20
bentonite. Also =
there are no=20
expenses for preparation - bentonite mixtures. At =
definition=20
of cost of 1 machine-business hour=20
of use of installations HDD which demand =
preparation -=20
bentonite mixtures, also consider, that: often cars are required for =
water=20
supply, export of the used mixtures; for this =
purpose are=20
required - special vacuum pumps, =
etc. For =
each of these=20
mechanisms there are norms of cost 1 machine-business hour which are =
considered=20
at calculation of cost of works of a full complex of equipment HDD. As =
hole=20
creation, with use of the unrolling device, is carried out by the dry =
way, all=20
these expenses in the cost price of works in the given technology are=20
absent.
Operational =
expenses at=20
work with installation "Needle", at =
creation of=20
Point=20
=B9 |
The=20
name |
The expense in=20
liters |
The price of=20
|
The =
product price at =
creation=20
of |
1 |
Diesel=20
fuel |
2,4 |
16 |
38,4 |
2 |
Motor oil |
0,03 |
30 |
0,9 |
According to=20
magazine =ABPipelines and ecology=BB =B94 (2001) size of cost of works =
on creation of=20
communications by method HDD has abroad averaged 250-600 US dollars for=20
installation of
Advertising of the =
offered=20
equipment, new created firm, will be directed on underlining of clear =
advantage=20
of technology with use of the unrolling device of holes with competing=20
technologies.
The =
manufacture=20
cost price on manufacturer plant allows appointing lower price for the =
offered=20
equipment in comparison with the prices for the equipment of other =
firms.=20
According to calculations, the prices for the Company equipment will be =
17-32 %=20
more low in comparison with the prices of manufacturers of the equipment =
applied=20
in other technologies of creation of holes.