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Today, more and more homes are built on unstable soils, such as the ones that learned in previous chapters. Among the extensive and hydro-compacted soils and sedimentation, foundations push and pull that move. Every year, thousands of homeowners are faced with evaluating and improving foundation problems. Fortunately, this means that they are reliable, the technical solutions available.
Exactly what is available, and this a solution to the structural problems?
Because the root of the structural problems of the soil, the first two options in dealing with the foundation weight off the unstable soil and bedrock places or other solid ground these solutions are called push piers and helical piers.
The push Piers basically long steel shafts, which are hydraulically via ground unstable surface soil until they reach the bed-rock or other load-bearing layers. Technicians can say that the piers reaching the bedrock by measuring the hydraulic pressure required to drive the piers into the ground until they meet specified depth engineer. The home weight then through the unstable ground and onto the pier piers brackets attached to the bottom of the house.
using similar
Helical Piers ground hydraulics, but are connected to the ground like a giant screw. Moreover, these enormous screws that hold up the house through literally a resistance force. The weight is then transferred to the domestic piers same durable steel brackets.
indicate that there is a need for a system Piering
It has an area of foundation wall, which is experiencing a vertical motion, like the sinking.
The chimney does not fit into the home.
The soil can be classified in scope, sinking, hydro, compressed, or active.
How Piers are installed 6 Basic Steps
Step 1: Outside, lawns and landscaping around the home were removed and set aside.
Step 2: The soil is removed, while the bottom of the concrete base revealed.
Step 3: Pier Foundation mounts a heavy, industrial-strength steel footings are connected to the home.
Step 4: massive steel pillars hydraulically driven down to bedrock strength equal to or load-bearing layers.
Step 5: The weight of the home, galvanized steel brackets carefully through unstable ground rock solid piers.
Step 6: After the approval of an engineer, the soil around the home instead, and the landscaping is returned to its original location.
There are several other options that are used during different eras to solve foundation problems. The oldest method is to jack up the house and replace the foundation and the latest method is to utilize piering systems or the entire perimeter of the home, or just part of it. Here’s a breakdown of the other methods that people use to solve Foundation issues oldest to most recent:
Replace the Foundation
Destroys yard and it takes several weeks to complete
There is no guarantee the same problem reoccuring (expect the same results
socket is still active zone
VERY EXPENSIVE- $ 50,000 PLUS
concrete Underpinning / Spread footing:
can take weeks / months
weight of the concrete can make the problem worse
structure can not be lifted
socket is still active zone
Concrete Piers
Concrete cylinders can crack during installation and can not be restored because of the deep
rollers too much skin friction to get through to additional shims Active Zone
necessary in the future
Even if shimming is included in the guarantee, the injury re-settlement and re -excavation not apply
square shaft helical Piers
Originally designed to withstand strong winds guy wires electrical towers.
is not designed to hold up through the weight of the soil
experience
Square shafts bending and folding when the weight rests on a foundation.
Concrete reinforcement cable Piers
designed for specific soil conditions that are not present in Colorado.
too much skin friction rollers get through the Active Zone
center cabling pier stretches over time, allowing instant after the piers in place.
Further cabling outer cylinder can increase skin friction roller.
Finally piering systems
Press Piers FOG
Let the deepest penetration of any type of steel pier.
makes it possible for low-impact interior equipment (typically much less collateral damage than the external approach)
guarantee of a lifetime transferable for the first 25 years that the vertical movement of Piero areas does not occur
Perform the job in most soil conditions of the planned service life of more than 100 years of
Press Piers mAY:
Enable the probability of lifting mechanism of a flatter, more levels condition
makes it possible for the closing or narrowing the existing cracks in brick, stucco, sheetrock or other internal or external surfaces
re-enable coordination sticking doors and windows, as well as straightening leaning chimneys
Press Piers is not
guarantee that perfect final conditions of the plane or level can be achieve
Add the lateral (horizontal) seat of a bowed foundation wall
water resistance is necessary to increase or decrease the humidity in the cellar
helical Piers WILL:
Perform the job in most soil conditions of the planned service life of more than 100 years of
allows the installation is relatively older, weaker or lighter foundation types
allow the installation as a pre- -Year of construction (or new construction) bearing system, poor soil
Leave a horizontal installation, as a “tie-back” system that can withstand the land climbs the hillside areas
, with very few exceptions, if necessary exterior excavation, destruction of the surrounding landscaping or paving
a lifetime warranty transferable for the first 25 years that the vertical movement of Piero areas does not occur
helical Piers mAY:
Let the probability of lifting means of a flatter, more levels condition
, makes it possible for the closing or narrowing the existing cracks, brick, stucco, sheetrock, or other internal or external surfaces
Allow to re-harmonize sticking doors and windows, as well as the straightening of leaning chimneys
helical Piers is not
guarantee that perfect final conditions of the plane or level can be achieved
Add the lateral (horizontal) seat of a bowed foundation wall (unless explicitly installed “tie-back” mode)
water resistance is necessary to increase or decrease the moisture content in the basement
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Source by Cassi Henes