AMSTER
0000
Hong Kong Builder
15
BQULLA
B
蹴
Plan of general arrangement at operating floor levels, and Reserve Tank floor.
proved quite satisfactory. Filtration from below was a difficulty which was overcome by pumping but a more serious question arose when concreting inside the caisson
after the required depth had been attained, as the pumps carried away the fine cement with the water. The pro- blem was solved by resting four piling tubes of large