Ground Water Levels and Risks to Underground Car Parks

Ground Water Levels and Risks to Underground Car Parks

Groundwater Levels And Risks To Underground Car Parks

With the well-known heat experienced in Dubai, more and more structures are being built inside away from the sun.  It is far more common now for city centre facilities such as carparks, to be built underground, particularly underneath new hotels and shopping complexes.

An important factor with underground facilities is the surrounding ground’s water table.  In essence, this is the amount of water in the ground which mixes with the soil and fractured rock and creates the stable surface which we walk and build on every day.   The water either comes from underground sources nearby, such as rivers and streams or, alternatively, from rain or installed irrigation systems.


If the subterranean water levels increase, due to leaks or heavy rainfall, the water table rises, effectively causing flooding and the groundwater will look for drier areas or a point of entry through which to drain.  This can cause issues for underground structures, particularly if the waterproofing to boundary walls is poorly installed or experiences leaks, a common problem for old and new buildings alike.

Whilst there are many ways that an underground structure can be waterproofed, including proofing applied to the exterior of the boundary walls, or a concrete structure with an integrated waterproofing system; there is always the risk of small cracks or gaps that can appear, allowing groundwater to seep through the boundary walls.  It would be difficult to detect if water was seeping through, but the most common indicators would be cracked and damaged concrete to the interior floors and walls.

Car park owners will want to ensure their facilities remain in a good, clean and tidy state, encouraging customers to return.  If water leaks create ugly and hazardous looking cracks and damage, the car park will lose business.  In addition, leaking water can cause slippery floors, posing risks to pedestrians and, alkaline salt drips onto car paintwork, all of which could result in expensive damage claims on top of the building’s repair bills!

Luckily there are now ways in which leaks can be accurately located from either above ground, or inside the structure.  The creation of a new innovative technology using a combination of damp-testing, ground penetrating radars and thermal imaging, allows problems to be swiftly and economically resolved, keeping your car park, clean and safe for busy city life.

For information on how we can help if you suspect a leak, consult LeakDTech’s professionals now!

Dubai Rains are coming! – are you prepared?

Dubai Rains are coming! – are you prepared?

Heavy Rainfall – How to Prepare and What to Check
As we have seen over recent years, with our ever changing global climate, there is the regular occurrence of heavy storms with relentless rain causing flooded grounds and properties, a costly and upsetting situation to watch unfold.
When heavy rainfall is forecast you want to try and make sure you have taken every precaution to protect your home and family.We want to provide you with some useful information and guidance on what you can do to make your home as waterproof and safe as possible:-

    • Take time to wander around your property and identify where water could backup when there is sudden heavy or persistent rain. For example, your gutters and down pipes are not designed to hold lots of water in a short space of time.  If they are blocked up with natural debris or rubbish, the rain will find it hard to drain away.  Regularly check to ensure they are clear and ready for weather.
    • Flat roofs on most properties can collect debris throughout the year and collect around roof drains during times of rain leading to a larger than expected collection of water, causing levels to rise and then flood down into any property.
    • Examine your windows and doors for any gaps or areas where sealant or insulation is missing or lose, particularly with conservatory fixtures. Water can seep in through the smallest of gaps.
    • Electricity is always a risk in bad weather. Ensure that any outside exposed electrical points around summer houses and deckings are well covered.   Some electrical appliances are safer when raised and fitted to walls, preventing them being at ground level. If you are prone to flooding, raise your electrical sockets and always make sure your fuse box is accessible.
    • Any air vents, air bricks and drains should be securely closed and covered to avoid any water filtering through.
    • If you have low placed windows, doors or access points, use sand bags or other flood barriers to barricade these areas minimising the risk of flooding.
    • Finally, heavy rain water can be pushed back through drains and pipes which lead out from your sinks and appliances. If you have a leaking or cracked pipe in your water system, this increased pressure can result in burst pipes, causing further major damage within your property.

As you can see above, there are many steps that you can take and precautions you can put in place to try and avoid water leaking or flooding into your home, but there are a couple of areas where you will not realise there is a problem until after the event, such as the pressure on your internal water pipes.  When there is damage to any of your pipes, the pressure from extra water will only lead to more significant problems.

There are technological ways which can help to prevent this situation by having a leak detection system put in place.  This is managed by way of multiple sensors, appropriately placed through your plumbing or property in order to monitor and detect for water leaks or problems and alert you.  Not everything can be avoided but with water leaks so if you cannot see it, arrange to detect it!

For information on how we can help if you suspect a leak, consult LeakDTech’s professionals now!

Irrigation water leaks and what to look for

Irrigation water leaks and what to look for

Irrigation and the Challenge of Water Loss in a Hot Climate

Dubai has struggled for many years with the ever decreasing supply of water both in terms of drinking water, the drying out of rivers and lowering groundwater levels which has driven government investment into desalinisation.  In addition, with lack of water resources for plants and crop growth, it is no wonder that residents and businesses have turned to the use of irrigation systems as a form of management.If designed and fitted well, these miles of plastic pipe carry much needed water to community parks, gardens, crops and plants and would normally be in the form of water droplets onto individual plants or a spray type system.  However, with the regular occurrence of soaring temperatures, spray irrigation has become less favourable with the water often evaporating before or just after it hits the ground.

A newer system being used more recently is an underground system, consisting of pipes being laid in gravel about 60cm below the surface, underneath the vegetation.   At planned locations, holes are made into the pipes allowing water to flow out in a controlled fashion into the gravel and directly reach the plant roots, without soil and other dirt getting into the irrigation pipes.  This cuts water usage by about three quarters for an average plot size.

However, the problem is, how can you tell if there are unplanned leaks in the pipes?

There are some common indicators which may highlight a potential issue:

  • An area being boggier than others with puddles forming.
  • Animals or birds congregating around particular areas indicating above ground access to a supply of water.
  • Your crops – are there parts where crops or plants look healthier than others indicating a lack of water supply due to leaks.

But……even if you can locate these indicators it does not identify exactly where the problem is or if there is more than one.

Luckily there are now ways in which leaks and problems can be detected from above ground, and resolved, which would be at a far lower cost compared to ruining a well-established crop by having to dig up a whole irrigation system!

For information on how we can help if you suspect a leak, consult LeakDTech’s professionals now!

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