TM 5-3805-248-10
JOB SITE MANAGEMENT - CONTINUED
0007 00
JOB SITE MANAGEMENT - CONTINUED
e.
Expedient haul roads may be built and maintained using conventional construction techniques. The scraper is well
suited for this job.
(1) Select path of haul road.
(2) Configure machine for land planing operations.
(3) Once route of road has been determined, use scraper in 1st gear to plane haul road surface.
(4) Offset subsequent passes by the wheel width until width of road has been established.
f.
Monitor condition of haul roads and use scraper to keep them properly graded and smooth.
g.
Control dust on roads with a water distributor.
3.
Operation on Haul Roads.
a.
To reduce ruts in haul roads, operators should travel next to the previous track.
b.
Report haul road defects to your supervisor.
4.
Traffic Control.
a.
Stagger machine movements at work site to ensure a smooth workflow with as few interruptions as possible. This
will also reduce traffic snarls.
b.
Keep traffic patterns safe, simple and, if possible, flowing in the same direction.
(1) Direct machines so that they load in the direction of the fill, and uphill, whenever possible.
(2) Machines should approach the fill site in a direction that allows for load to be dumped and spread, then scraper
returned to the load site without having to turn machine around.
c.
Position a ground guide at blind spots or crossings.
INITIAL SITE WORK--CUTTING HIGH, FILLING LOW
1.
Typically, a work site will have high spots and low spots, where water may accumulate and where the uneven terrain will
retard construction operations.
2.
The scraper is most efficient when operating on an approximate level plane. Therefore, the first priority at a new work site
should be to use the machine to establish a level plane. However, a slight grade is desired to shed rain and prevent pooling
of water.
3.
Begin by cutting high spots, straddling scraper centerline with centerline of high spot. Several 2-in. (5-cm) cuts are prefer-
able to attempting a single 6-in. (15-cm) bite. Use a ground guide as required.
4.
Once the machine is loaded, ground guide should direct operator to dump load in lowest spot at site. Straddle scraper cen-
terline over centerline of low spot. Lift should be 4-6 in. (10-15 cm).
5.
If soil is too wet to support machine, deposit material adjacent to low spot, to be bulldozed into hole.
LAND PLANING OPERATIONS
1.
Introduction.
a.
Land planing is a finishing operation. It may be used throughout the construction of a horizontal surface.
b.
To perform land planing operations, configure scraper cutting edge for finishing operations--use straightedge with no
stinger.
c.
Prior to land planing operations, inspect construction site to determine the location of high spots to be removed and
low spots to be filled in.
(1) The more uneven the terrain, the higher the cutting edge should be above the plane established by the tractor.
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