|
Rotary Drilling Rig Model |
KR40A |
|
Max. torque |
40 kN.m |
|
Max. drilling diameter |
1200 mm |
|
Max. drilling depth |
10 m |
|
Max. cylinder thrust |
70 kN |
|
Max. cylinder trip |
600 mm |
|
Main winch pull force |
45 kN |
|
Main winch speed |
30 m/min |
|
Mast inclination(Lateral) |
±6° |
|
Mast inclination(Forward) |
-30°~+60° |
|
Working speed |
7-30rpm |
|
Min. radius of gyration |
2750mm |
|
Max. pilot pressure |
28.5Mpa |
|
Operating height |
7420mm |
|
Operating width |
2200mm |
|
Transport height |
2625mm |
|
Transport width |
2200mm |
|
Transport length |
8930mm |
|
Transport weight |
12 tons |
Construction geology：
Soil layer, Sand cobble layer, Rock layer
Drilling depth：8m
Drilling Diameter：1200mm
Construction plan:
Reaming step by step , the upper 6m being the soil layer and gravel layer, using a 800mm double-bottom buckets first , then changed by 1200mm buckets to make the hole.
At the bottom being the rock layer, using the 600mm and 800mm diameter core buckts to remove and breaker the rock.
In the end, cleaning the hole with a1200mm double bottom bucket.
