HorizontalDirectionaldrilling

http://scratchpad.wikia.com/wiki/Sasecurity

This article is part of TrenchingEquipment and VibratoryPlow

Build a Telephone exchange via Directional Drilling and Trenchers
Directionl drilling CC owner Andrei(082 569 9154) recently did a project in Sandton where he trenced from driveway to driveway using a VibratoryPlow and TrenchingEquipment. Using a Horizontal directional drill he tunneled under each residents driveway. A 70mm pipe was layed through which the telephone wires and fiber optics were pulled via a wire for the DsLam telephone exchange. A Rod Pusher, Soil displacement mole, Piercing tool and HDD are the equipment used for trenchless pipe laying. An alternative method is to TelephonePoles for a DsLam exchange.

Horizontal Directional Drill (HDD)
http://www.horizontaldrill.com/services/hillsidestability.htm attachment:hillsidedril.jpg

The HDD is the solution to South-Africa's crime and Telkom problem

If somehow we can convince people to take their monthly payment to the ISPs and and security companies and rather invest it in a machine that has extremely low operational costs we will make South-Africa a better place. BL Construction who imports the DitchWitch a gentlemen by the name of Paul Kruger informed me that the operational costs are extremely low on the HDD. It is basically just the drillbit that needs replacement. And in our application we will only drill straight line 1m below surface which won't stress the rods very much.

On Ebay used HDD vary in price between $8000 and $20000.

*http://www.ditchwitch.com *Buy HDD online at ebay http://item-specifics.ebay.com/97125-0-1.html *http://www.tttechnologies.com Grundodrill HDD model 7xl with rubber tracks: R1,5mil

FTTH (Fiber to the Home) contractors in America use a HDD to lay fiber from the pavement to home. See: http://www.ditchwitch.com/dwcom/Category/CategoryView/11 attachment:hddDitchWitchJT921.jpg

Rod pushers
attachment:rodpushersebay.jpg

*RodPushers Ditch Witch rod pushers are compact, economical, powerful and easily transportable solutions for long-distance trenchless installation of pipe, interduct, conduit and cable. Bore with directional control to 200 feet (61 m) or more with the P40; 500 feet (152 m) or more with the P80. http://www.ditchwitch.com/dwcom/Equipment/ProductFullSpecView/161 attachment:rodpusher.jpg

User Rod pushers about $850 on Ebay http://cgi.ebay.com/Ditch-Witch-P40-Rod-Pusher_W0QQitemZ300040489234QQihZ020QQcategoryZ73120QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Piercing Tool
The PT20, PT30 and PT40 will provide a low cost method of installing utility service lines under sidewalks, driveways, streets or other areas in which larger traditional trenching methods aren't feasible. Ditch Witch Piercing Tools perform short- to medium-range compaction boring projects, pipe ramming and pushing, and pipe pulling. On Ebay used DitchWitch piercing tools are $3000. http://www.ditchwitch.com/dwcom/Equipment/ProductFullSpecView/143 attachment:piercingTool.jpg attachment:piercingtool2.jpg

http://www.sunriseequipment.com/articles.aspx?article=211

Build Your own HDD
1. Hydrolic motor 2. Hydrolic pump 3. DingoDrill like unit.

SmithDrilling built a HDD with Hydrolic motor mounted on a small platform that can slide forwards and backwards. Use DitchWitch drillbit connected to a strait rod lowered into the trench to tunnel under driveway.

Soil displacement moles
The GRUNDOSTEER on-board transmitter sonde provides pitch, roll and depth information, whilst above the ground a hand-held receiver/ locating device tracks the exact lateral and depth position and forward progress of the machine. This information can be passed on from the person tracking the machine back to the steering operator, therefore both operators always have a clear picture about the location of the machine.

The head is 75mm in diameter and can bore upto 60m. HDPE pipe can be installed by using the air hose to pull in the pipe after the bore is completed. The tool does not require any special drilling fluid to work properly. The Grundosteer is ideal for installations where directional drill rigs are impractical. A pit has to be dug for both the operator and Grundosteer.

*http://www.nodig-construction.com/index.cfm?menuID=56&object_ID=7 *http://www.reeftrenchlesstech.co.za are the agents for TTtechnologies.com (011)828 2397 *http://www.tttechnologies.com *GRUNDOSTEER: R250 000 *Grundopit: R600 000

Used Directional drills on EBAY
A Straitline Directional drill for $8000 *http://cgi.ebay.com/2000-Sraightline-Directional-Drill_W0QQitemZ160037899633QQihZ006QQcategoryZ73120QQssPageNameZWDVWQQrdZ1QQcmdZViewItem attachment:Hdd1.JPG

DitchWitch JT2321 for $11000 attachment:hddDitchWitchJT2321.JPG

DitchWitch JT1720 for $9000 attachment:hddDitchwJT1720.JPG

Planar Construction project in Houghton
Using GroundPenetratingRadar the underground topology is mapped out and any pipes marked. A ditch is dug 1m from the wall by hand. A pit is dug where the four walls meet. Into this pit the Grundopit is placed. The Grundopit or Grundosteer bores a tunnel under the wall to the adjacent pit on the other side of the wall. After this it bores a tunnel towards the house. Adjacent the house a drilbox is installed from which the house connects to the backbone running down the perimeter. a Galvanised wire is blown through the pipe via a parashoot and compressor. Corrie Scheepers Planar Construction - 083 413 1027 splender@mweb.co.za

He linke two banks branches in JHB CBD 15m underground a total distance of 100m. To get the full background to this thread you should read this thread. http://mybroadband.co.za/vb/showthread.php?t=29635

An operator steered VibratoryPlow can used instead of the Grundosteer/Grundopit to lay a cable from the point where the four property boundaries meet to the house that connects to the backbone.

Or tunnel under the pavements of each house, under the driveway of each residence. From each residents pavement a tunnel is drilled under his perimeter wall to the wall of his house where the drillbox is installed. Using a vibrational plow a ditch is dug from driveway to driveway. And the HDD is used to drill under the driveway. This is cost effective solution if the HDD has to be hired at R250/m.

HDD owner Andrei (082 569 9154) Sandton project
He uses a HDD machines to drill under pavements. He recently did a project in Sandton where he Trenched (See TrenchingEquipment) upto the driveway a depth of 600mm and then tunneld 60cm under the medical doctor's driveway using his HDD and the project had social accpetance

Ampvar PTY ltd Hdd and Vibratory plow
Ampvar uses a VibratoryPlow a line is cut from driveway to driveway. And the HDD is used to drill only under the driveway. This is a cost effective solution if the HDD has to be hired at R250/m. A VibratoryPlow can only lay cabling and not piping.

HDD operators in South Africa
*ANDREI - 082 569 9154 Nelspruit Horizontal drilling *Corrie Scheepers Planar Construction - 083 413 1027 splender@mweb.co.za *Ampvar PTY ltd - Neil Botes (082 807 5800)/011 472 9599   ampvar@mweb.co.za  *Bill Smith 082 723 1918 Mgoti Horizontal drilling

Plant hire
*http://www.cpha.co.za Lists all the plant hire companies *SA Plant Solutions	Contact SA Plant Solutions	0827837137	012-6641850	Centurion *ATLAST COPCO

Social aspects
See NetworkCentricWarfare

Academic literature
*Construction Equipment ;  May 15, 1991  ;  Landberg, Lynn;   1,093 words *Underground Construction *Pipeline & Gas Journal