This site is constructing a foodcourt centre which meant for Tourism Malaysia...
It consists of two types of constructions, they are rc and steel...
What special about this construction is where they are using caisson pile...
caisson pile meaning to say, a hole need to be dug out into required level until they found sound bedrock...
During the digging process, it is not simply easy like digging a hole which contains sands only...the ground condition consists of sands and rocks...every time when they found rocks, a blasting process will be used to crush the rocks...the blasting process need a permit from police...so everytime a blasting is required, a permit should be taken out by police...
Moreover, they also do PDT...PDT stands for Penetration Drill Test at the rocks whereby they estimate it as sound bedrock...every PDT should required 4500mm depth and every 3 feets, the drill test should be more than 2 minutes...then they can conclude that it is sound bedrock and digging process stop at there....
After finish digging, concreting will be the next...the concreting process was using tremie pipe...where the concrete is classified as tremie mix grade 30...a tremie pipe is installed into the hole then the tremie mix will be poured down into the hole...the pipe should be burried into the tremie mix about 3 feets...then concreting process can proceed...
The pictures during the process are not with me yet...so I upload the RC drawing of the caisson pile...
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