DGsLtd.

18/04/2024

Question and answer of the day.

31/12/2023

Many thanks for being part of me for the year 2023.
Wishing you memorable moments and favour that follow the year 2024. Happy New Year.

25/12/2023

Season greetings to you all.

12/08/2023

The effect of the profession can be seen, it cut across all ramifications.

08/07/2023

Start with the hardest tasks to achieve outstanding results.

05/06/2023

Isolation Pipe in CFA

In the context of CFA (Continuous Flight Auger) piling, an isolation pipe refers to a cylindrical pipe that is used to separate and protect the reinforcement cage from the surrounding soil during the piling process.

CFA piling is a technique used in foundation construction, typically for deep foundations in soil or weak rock. It involves drilling a hole into the ground using a hollow-stemmed auger, and while the auger is being withdrawn, concrete is pumped through the hollow stem to fill the void left by the auger.

To ensure the integrity and structural strength of the pile, a steel reinforcement cage is often inserted into the fresh concrete. The reinforcement cage consists of longitudinal steel bars and circular hoops that provide additional strength and stability to the pile.

During the process of pumping concrete into the hole, an isolation pipe is often placed around the reinforcement cage. This pipe acts as a barrier between the cage and the surrounding soil, preventing direct contact between the reinforcement and the soil. The isolation pipe helps to maintain the integrity of the reinforcement cage and prevents soil intrusion into the fresh concrete.

By isolating the reinforcement cage, the isolation pipe ensures that the structural integrity of the pile is not compromised by soil movement or contamination. It helps to prevent the potential weakening of the pile due to soil intrusion or corrosion of the reinforcement.

In summary, an isolation pipe in CFA piling serves as a protective barrier between the reinforcement cage and the surrounding soil, helping to maintain the strength and durability of the pile.

04/06/2023

Surveying and Geoinformatics, a course to study.

Surveying and Geoinformatics as a course and a profession! Are you an individual with the erratic conclusion that what a Surveyor does is on...

16/05/2023

Dewatering Pipe Installation

In piling excavation, a dewatering pipe is used to remove water from the excavated area, allowing for a dry working environment. It is commonly employed when the water table is high or when the excavation is located below the groundwater level.

The dewatering pipe is typically a perforated or slotted pipe that is installed in the bottom of the excavation or in trenches dug around the excavation site. The pipe is connected to a pump or a well point system that helps draw water out of the ground.

The process of dewatering involves lowering the water table in the vicinity of the excavation to create a safe and stable working area. The dewatering pipe acts as a conduit for the water to flow towards the pump or well point system. As water seeps into the pipe through the perforations or slots, it is pumped away, usually to a drainage system or an appropriate discharge location.

It is important to design and install the dewatering system correctly to ensure effective water removal and prevent any adverse effects on the surrounding soil or nearby structures.

07/05/2023

Catching them young

As our society continues to evolve, we need more individuals who are trained in Surveying and Geoinformatics to help us navigate...

29/04/2023

Land related terms to be known.

SURVEY PLAN: is a document that measures the boundary of a parcel of land to give an accurate measurement and description of that land. EXCISION: An excised land is a land that has been released by the government to the indigenes of the area who originally owned the land before the government acquir...