XN000022-1990-06-27 — Page 30

WEDNESDAY, JUNE 27, 1990

28

BILL TO TIGHTEN GEOTECHNICAL CONTROL IN NORTHWESTERN NT

LANDS, THE OF THE

READING

THE ACTING SECRETARY FOR PLANNING, ENVIRONMENT AND HON CIVE OXLEY, TODAY (WEDNESDAY) MOVED THE SECOND BUILD NGS (AMENDMENT) BILL 1990 IN THE LEGISLATIVE COUNCIL.

ΤΟ AUTHORITY

TIGHTEN THE KARST AREA OF THE

BILL THE

THE BUILDING WILL EMPOWER GEOTECHNICAL CONTROL OVER BUILDING WORKS IN NORTHWESTERN NEW TERRITORIES.

THE MR OXLEY SAID SERIOUS DIFFICULTIES HAD BEEN ENCOUNTERED IN

THE DEVELOPMENT OF, DESIGN AND CONSTRUCTION OF FOUNDATIONS FOR, AND

NEW TERRITORIES NORTHWESTERN CERTAIN SITES IN AN AREA OF THE WAS UNDERLAIN BY KARSTIC MARBLE BEDROCK, WHICH WAS ESSENTIALLY ROCK CONTAINING DISSOLUTION CAVITIES.

WHICH MARBLE

"TO ENSURE SAFE DEVELOPMENT OF A SITE IN SUCH A GEOLOGICALLY OF THE GEOLOGICAL FEATURES COMPLEX AREA, A GOOD UNDERSTANDING

THE ENGINEERING BEHAVIOUR UNDERLYING THE SITE AND HOW THESE AFFECT OF THE FOUNDATIONS IS ESSENTIAL.

"PROPERLY

DESIGNED,

BY FOLLOWED

HIGH CAREFUL

QUALITY

AND INTERPRETATION INVESTIGATION, INVESTIGATION RESULTS WILL HELP ACHIEVE THESE ENDS.

ΤΟ

ENSURE

THAT

RELIABLE

OF

GROUND THE GROUND

IMPORTANT

GEOLOGICAL NECESSARY "IT IS ALSO

AT THE DESIGN FEATURES UNDERLYING THE SITE ARE CAREFULLY CONSIDERED

AVOID THE CHOICE OF

OF AN STAGE OF THE BUILDING FOUNDATIONS SO AS TO INAPPROPRIATE FOUNDATION LAYOUT OR FOUNDATION TYPE," MR OXLEY SAID.

SOUGHT

THE

ΤΟ

OF

OF THE BILL

TO AMEND HE SAID CLAUSES 2 AND 10

(ADMINISTRATION) REGULATIONS BUILDINGS ORDINANCE AND BUILDING

APPROVAL REQUIRE SUBMISSION OF GROUND INVESTIGATION PLANS FOR THE

INVESTIGATION THE BUILDING AUTHORITY PRIOR TO COMMENCEMENT OF GROUND WORKS IN THE AREA, AND TO REQUIRE THAT THE SUBMISSION OF A FOUNDATION

REPORT CONTAINING GEOTECHNICAL PLAN SHOULD BE ACCOMPANIED BY A

TOGETHER WITH A DETAILED DESCRIPTION OF THE GEOLOGY OF THE SITE

PROBLEMS AND GEOTECHNICAL DISCUSSION OF THE ANTICIPATED GEOLOGICAL REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF FOUNDATION WORKS.

A

A RISK THAT DURING CONSTRUCTION

"FOR FOUNDATIONS IN KARST AREAS, THERE IS ALWAYS DESPITE CONSERVATIVE DESIGN, PROBLEMS WILL ARISE OF THE FOUNDATIONS," HE SAID.

REGISTERED

IS

FOUNDATIONS, IT COMPLETED

STRUCTURAL OR THE PERSON

RECORDS AND TO REVIEW CONSTRUCTION

FOUNDATION CONSTRUCTION.'

"TO ENSURE MINIMUM RISK TO THE

AUTHORISED NECESSARY FOR THE ENGINEER TO MAINTAIN DETAILED THESE AT CLOSE INTERVALS DURING

M

THAT CLAUSE 4 MR OXLEY ADDED THE BUILDING

REQUIRE THE AUTHORITY TO REVIEWS OF

OF THE BILL SOUGHT

OF SUBMISSION

TO EMPOWER PERFORMANCE

FOUNDATION WORKS

WITHIN

AREA

NUMBER

2

PRIOR TO

COMMENCEMENT

OF

SUPERSTRUCTURAL WORKS.

DEBATE ON THE MOTION WAS ADJOURNED.

0

/29

Page 30Page 31