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The 5 most common errors in deep excavation design.

May 26th, 2017

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DeepFND - Deep Foundation Software, caissons, CFA, drilled piles, driven piles, concrete, timber

 

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Our Software Solutions
DeepFND 2017: Deep Foundation software (NEW!)
DeepEX 2017: Deep Excavation software
Soldier pile walls
Sheet pile walls
Secant pile Walls
Tangent piles
Diaphragm Walls
Soldier and Tremied Concrete
Soil Mix walls
Combined king pile sheet piles
Slope stability
Cost estimation for braced excavations
Waler-Strut Cofferdams
SnailPlus: Soil nailing - soil nailing walls
SiteMaster: Inclinometer software (adopted by Geokon)
HelixPile: Helical Pile Software
RC-Solver: Concrete Design ACI-318, EC2, EC8
Steel-Beam: Steel beam column design, full equations, AISC, EC3

Soil nail design, soil nail wall design with DeepEX!

Soil nail design requires carefull consideration of many parameters. Constructing a soil nailed wall involves reinforcing the soil as work progresses in the excavated area by the introduction of passive bars, which essentially work in tension. These are usually parallel to one another and slightly inclined downward. These bars can also work partially in bending and by shear. The skin friction between the soil and the nails puts the latter in tension, and transfers acting soil forces deeper within the soil mass.

Soil nail design and analysis

Using this method, and working from the top downward, a mass of reinforced soil is gradually built up. In order to keep the soil from caving in between the bars, some sort of facing needs to be installed. This facing is generally constructed with some shotcrete reinforced by a welded wire mesh. This facing can be vertical, battered to a wide variety of angles, or made up of a series of benches. The passive bars are often referred as “nails” and the soil reinforcing technique is known as “soil nailing”.

Once constructed, a soil nailed wall shows a certain similarity with a Reinforced Earth wall. However, the fact  that a soil nailed wall is been built downward with the soil being reinforced in situ, while a Reinforced Earth wall is constructed by building an embankment that is then strengthened as the work progresses, constitutes an essential difference between the two.

DeepEX can also design soil nail walls as it incorporates the recommendations by the French Clouterre, AASHTO LRFD, and Eurocode. Soil nailing with DeepEX includes the following capabilities:

- Clouterre French recommendations -AASHTO and FHWA recommendations
- Shotcrete design
- Cover plate design
- Mobilized force calculations - Soil nail mass reductions
- Head plate force calculations - Advanced design features

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DeepEX Pricing

The most complete solution for deep excavations!

Annual technical maintenance agreement: $400 (includes unlimited technical support and upgrades for one year).

DeepEX

Ultimate DeepXcav: $3,475.00
Ultimate DeepXcav + Cost estimation: $4,100.00
DeepX + Slope + Frame Analysis: $5,075.00
DeepX + Slope + Frame modules
DeepEX Ultimate + DXF: $6,025.00
DeepEX Platinum + DXF
DeepEX Platinum (Building Damage Module): $7,525.00
All + Building damage module

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