7 Important steps for the Micro Piling

There are many reasons to consider recommending the deep foundation. Pile foundations are the types of deep foundations. Piling is one of the foundation methods in most of projects used construction industry. Few types of piling methods have under the section of pile foundation

One the famous piling method is Micro piling, which is in the complicated locations and tunnels.

Preparation

Contractor must prepare the method of statement and risk assessment and design mix calculation, manpower data, all the safety and legal checklist before sating the piling projects.

Pile Location

Piling equipment carefully mobilized in to the site and park. Ensure all the pile location points by the approved surveyor of the main contractor. If the contract mentions the make the location is done by sub contractor that means piling contractor should ensure the pile location by own surveyor based on the piling drawing.

Safety

All the worker must attended the in-house safety rules in the site and ensure they must understand the risk assessment. Ensure the entire check list for the safety site before start the piling process. Piling rig must drive on the safe access like sheet plat

Drive

Must ensure the pile qualities like pile vertical, pile length, pile size, temporary casing or permanent casing position. Especially the vertical of the pile must check every one meter depth that you drive. Before leave the location must check the depth and conform to the authorized personal. If once start the re bar installation then difficult to drill again. It is wasting of your time and energy.

Re bar installation

Steel re bar must be fabricate as the same time of boring. If you select that use the free fabricate materials then must ensure sufficient pieces have on site. Re bar must be inserting vertically and joints must fix properly. It’s very important for the quality of the pile. Grouting hose must insert with the re bar gauge.

Grouting

Wash properly to the boring hole through the grouting hose, when the water come out like clean water then you may stop and start to grout. Ensure the water cement ratio and chemical compounds for the setting process based on the design mix of the pile. When you pump the cement mix, maintain the steady flow and the mean time don’t forgot to take pull the grouting hose. During the grouting water may overflow from the boring hole as the same the cement come out like harder thick then you may conform with authorized person to stop the grouting

General Points

Must fallow the safety rules and use the personal productive equipment's at all the times. Spacer all placed and ties properly with the steel re bar gauge. Don’t forget to take the cube for the cube test to know the strength of grouting cement. Maintain the steady flow of the cement pump if not you may facing your pump may be chock.