หน่วยที่ 8 การทดลองแคลิฟอร์เนีย แบริ่ง เรโช California ...

1 8 ( California bearing Ratio) 1 2 1 : .. 2552 2 : .. 2552 1 1 2 2 8 8 - 2 8 ( California bearing Ratio) California bearing Ratio 1.

2 2. 3. 4. 5. 8 8 - 3 . 1992 California Division of Highway % %

3 (Penetration Piston) ( ) 4 8 8 - 4 3 %

4 California Division of Highway 3 ( .2)3 (Penetration) (Standard Load) (Standard Unit Load) . ( ) 1, . (3,000 ) ./ 3 (1,000 / 2) . ( ) 2, . (4,500 ) ./ 2 (1,500 / 2) . ( ) 2, . (5,700 ) ./ 2 (1,900 / 2) . ( ) 3, . (6,900 ) ./ 2 (2,300 / 2) . ( ) 3, . (7,800 ) ./ 2 (2,600 / 2) % 4 % Unified 0 3 OH,CH,MH,OL 3 7 OH,CH,MH,OL 7 20 OL,CL,ML, SC,SM,SP 3.

5 2515. 79. 4 .. 154 8 8 - 5 ( ) % % Unified 20 50 , GM,GC,SW,SM 50 80 SP,GP,SW,SM 80 GW,GM (Shearing Resistance) ASTM D 1883-99 Test Method for ( California bearing Ratio) of Laboratory Compacted Soils % % %CBR % % 2 1.

6 (Soaked) 2. (Unsoaked) 8 8 - 6 3106-2010 9 8 10 ( ) 4 1) 2) 3) 4) 1) 6 7 , : .. 2552 8 8 - 7 3106-2010 9 8 10 ( ) 4 2) (Swell Plate) 15.

7 3) .. (5 ) 4) (Spacer Disk) .. 5) 12 . 6) 1 . 7) 10,000 ( 4,540 .) 10 8) 3 4 9) 12 10 18 10) 11) 30.

8 12) 4 13) 10 14) 15) 105 5 8 8 - 8 3106-2010 9 8 10 ( ) 4 16) 250 500 17) 18) 19) 20) . : .. 2552 8 8 - 9 3106-2010 9 8 10 ( ) 4.

9 2552 : .. 2552 8 8 - 10 3106-2010 9 8 10 ( ) 4 1) 2) ASTM : D698 D1557 4 3 / 4 6 1) 2) 3) (Unsoaked Sample) 1) Spacer Disc Spacer Disc Spacer Disc 2) ASTM D1140 54.

10 12 3 56 D 1557 00 . 1 8 3 56 8 8 - 11 3106-2010 9 8 10 ( ) 4 3) ( ) 4) Spacer Disc (wet ) 5) 2 10 ( .) 6) 7) , , , , , , , , , , , , 8)