1985 Ed.] Building (Construction) Regulations
2
[CAP. 123
B 29
[Subsidiary]
1
Type of ground
5
Made ground and fill
Safe bearing capacity kPa
Value, depending on material, depth and age of fill, to be determined by tests.
Note: In the above table, the terms used shall be deemed to have the following meanings-
compact
loose
dry
core recovery (rock)
a soil which requires the use of a pick for removal; a soil which is readily removable by shovelling only;
that the ground-water level is at a depth of not less than 1 m or the width of the foundation, whichever is the greater, below the base of the foundation;
the actual length of the core of rock, taken by means of rotary drills fitted with a coring/bit, expressed in percentage of every 1.5 m interval of depth the coring is advanced into the rock.
34. The pressure on plain or reinforced concrete in foundations shall not exceed those specified in Table X.
Permissible pressure on concrete.
TABLE X
Pressure on concrete for reinforced concrete foundations
1 L.N. 294/76. 3 Designation as specified in regulation 19 Maximum pressure in kPa Grade IA IIA 7800 6,500 IIIA Grade I II 5,300 5,400 III IV V 4,700 4,200 2,100 1,60035. (1) All piling used in connexion with the foundations of any building shall, to the satisfaction of the Building Authority, be of adequate load-bearing capacity and of an approved type and each pile shall-
(a) be of material of such quality as to be durable and strong enough to carry its load without exceeding the appropriate limitations of permissible stresses and, where plain or reinforced concrete piles are used, the average compressive stress on the nominal cross-sectional area shall not exceed 5 MPa;
(b) comply with regulation 5 and be designed so as to be capable of sustaining the working load with a safety factor appropriate to the type of pile and the method of design adopted;
Piling.
L.N. 294/76.