Pavement Design Catalogue - LGED
Pavement Design Catalogue - LGED
Pavement Design Catalogue - LGED
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UPAZILA ROAD HBB PAVEMENT IN HILLY AREAS<br />
Plate UPR-HBB-HL-1<br />
This is a HBB standard option of Upazila Road <strong>Pavement</strong> without Hard shoulder<br />
through Hills having run-off drainage on both sides. Shoulder treatment may be<br />
provided as needed. It is a single carriage-way pavement where quality control is<br />
hard to ensure due to deep hills. It is aimed at all weather traffic flow at the initial<br />
stage. It has sub-grade having 4% Soaked CBR and 125 mm sand cushioning<br />
compacted to 100 percent STD. Another 25mm sand cushioning has been<br />
provided in between flat soling and HBB. This is also an option of HBB pavement<br />
for Upazila Road in plain lands excluding earth heaps at earthen shoulders.<br />
Plate UPR-HBB-HL-2<br />
This is a HBB standard option of Upazila Road <strong>Pavement</strong> without Hard shoulder<br />
through shallow Hill-cut having hills on one side. Shoulder treatment may be<br />
provided as needed. It is a single carriage-way pavement where quality control is<br />
hard to ensure due to deep hills. It is aimed at all weather traffic flow at the initial<br />
stage. It has sub-grade having 4% Soaked CBR and 125 mm sand cushioning<br />
compacted to 100 percent STD. Another 25mm sand cushioning has been<br />
provided in between flat soling and HBB.<br />
Plate UPR-HBB-HL-2A<br />
This is a HBB standard option of Upazila Road <strong>Pavement</strong> without Hard shoulder<br />
through shallow Hill-cut having hills on both sides. Shoulder treatment may be<br />
provided as needed. It is a single carriage-way pavement where quality control is<br />
hard to ensure due to deep hills. It is aimed at all weather traffic flow at the initial<br />
stage. It has sub-grade having 4% Soaked CBR and 125 mm sand cushioning<br />
compacted to 100 percent STD. Another 25mm sand cushioning has been<br />
provided in between flat soling and HBB.<br />
Plate UPR-HBB-HL-3<br />
This is a HBB standard option of Upazila Road <strong>Pavement</strong> without Hard shoulder<br />
through deep Hill-cut having hills on one side. Shoulder treatment may be<br />
provided as needed. It is a single carriage-way pavement where quality control is<br />
hard to ensure due to deep hills. It is aimed at all weather traffic flow at the initial<br />
stage. It has sub-grade having 4% Soaked CBR and 125 mm sand cushioning<br />
compacted to 100 percent STD. Another 25mm sand cushioning has been<br />
provided in between flat soling and HBB. Sub-surface drainage has been provided<br />
to drain seepage water.<br />
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