Civil Projects

Main Break Water(MBW) access road occurs several cracks on the asphalt binder course. The road cracks are monitored and investigated with specialist from RDA Research & Development. This report describes the reason and remedial method of the cracks based on the investigation and consultation. MBW access road structure consists of fallowing cross section and the core samples have been taken on the cracks. According to core sample data, can be observed that the crack was started from CBM and reflected to the binder course surface. CRACK INVESTIGATION The crack survey carried out for the entire road and investigation detail summarized as an attached sheet. Core samples were taken from the jointly selected locations with the engineer. MBW access road cracks were categorized into two types based on crack surface appearance. Transverse cracks Longitudinal cracks Transverse cracks Transverse cracks were occurred as a perpendicular to the road center line. These cracks are reflecting from ...

Excavation For Pile Cap Shoring is provided around the proposed pile cap with 600mm working space. Excavation is carried out up to certain level by using backhoe. Then excavation was carried out manually. Excavation is very difficult below ground water level. De watering system should be provided. Excavation With Jcb Shoring Is Provided Difficulties in excavation below the ground water level. Difficult to remove the soil Need continuous de watering process Density of soil will increased Erosion or collapse of the sides of the excavation Pile Hacking Pile is casted up to above required level. Then it is broken up to required level. This is known as pile hacking. Top concrete is weaken so pile should be casted above required level. Normally height above required level, it is equal to the diameter of the pile. But during the concreting ensure the concreting whole pile, normally concreting the ground level. Then excavate soil and pile ...

Tendering Methods & procedures: Methods of Contractor Selection: The selection of a contractor to carry out construction works in a project is a very important matter. A wrong choice may lead to an unhappy client / contractor relationship. It also may end up with dissatisfied client and sometimes even with an insolvent contractor. The client’s professional advisers should find a contracting company; That is financially stable / and has a good business record. For which the size of project is neither too small nor too large. That has a reputation for good quality workmanship and efficient organization. There are three principal methods for choosing a contractor: (a) open tendering, (b) selective tendering, (c) nomination. Open Tendering – Initiated by client’s architect/ quantity surveyor advertising in newspapers and/or inviting contractors to apply for tender documents and to tender in competition for carrying out the work. Usually a deposit i...