Site
Preparation Regardless
of choice of lining products, subgrade preparation is critical
to a successful project. The lining system will only be as good
as its supporting structure. Care should be taken to match the
right lining material with local site conditions.
This
lakes's bottom is well-prepared. The surface is compacted,
smooth, and free if sticks and rocks that could puncture the
liner. These steps ensure that the liner will function as
designed.
Pre-fabricated
Panels The
use of large fabricated panels allows field installation crews
to install acres of lining per day while limiting the number
of field seams.
Fabrication
is available for all materials except Polyethylene and EPDM.
Pre-fabricating
lets our crews install liner in panels of up to 25,000 square
feet.
Panels
are delievered in rolls, marked for placement.
Field
Seams
The type of liner material used determines the type of field
seam required. We work closely with you to determine what lining
material matches your design and engineering specifications.
We
can provide full field installation with our certified crews
and CLI state-of-the art equipment.
Seams
are tested by air testing seams and pulling destructive samples.
Pipe
Boots A
pipe boot is a "sleeve" that allows mechanical piping
to be placed as needed without destroying the integrity of the
liner.
Pipe
boots are prefabricated and selected to work in tandem with
the lining your project specifies.
Pipe
boots can be pre-made to your liner type and outer-diameter
pipe specifications. Shipped with the liner to your site,
this step reduces field installation time.
Pipe
boots are also available in 90-degree and slope boots.
Anchor
Trenches
To secure the edges of the lining in an earthen pit, an "anchor
trench" is dug. Anchor trenches are approx. two foot wide by two foot deep (2' x 2') and
one foot back from the crest of the berm (standard trench dimensions
and depth vary according to project design.)
This
example of an edge anchor trench utilizes a "U" cut
to permanently stabilize the liner. Slightly rounding corners of the trench avoids sharp bends in
the geomembrane. The trench itself needs to be free of loose
soil and rocks.
Edge
Treatment
As
with all lining used in golf construction, care should be taken
to design a good edge transition from water to fairway. A safety bench and edge treatment are recommended.
For
larger lakes, erosion and wave action should be taken into account.
The use of rip-rap, concrete shore protection or synthetic erosion
control protection is highly recommended.
A
note on safety:
Many projects utilize a safety bench designed at 3' below the
operating surface. This bench solves several potential problems.
First, as the name implies, it allows someone who may fall into
the lake an area on which to stand and exit the lake. It also
allows the golf course contractor or architect the ability to
create a nice looking edge around the lake, both protecting
the lining from possible mechanical or spike damage and also
creating an aesthetically pleasing finish.