Engineers/Public Projects

For more information about slope failures and slope restoration, please follow the informational links below.

Factors that influence slope stability 

A sample slope repair plan

When does Hillside get involved?

What steps do I take to repair my slope?

 

FACTORS THAT INFLUENCE SLOPE STABILITY

 

 

Gravity
The main force responsible for slope movement is gravity. Gravity is the force that acts everywhere on the Earth's surface, pulling everything in a direction toward the center of the Earth. On a flat surface the force of gravity acts downward. So long as the material remains on the flat surface it will not move under the force of gravity.

gravflat.gif

 

On a slope, the force of gravity can be resolved into two components: a component acting perpendicular to the slope and a component acting tangential to the slope.

gravslope.gif

 

  • The perpendicular component of gravity, gp, helps to hold the object in place on the slope. The tangential component of gravity, gt, causes a shear stress parallel to the slope that pulls the object in the down-slope direction parallel to the slope.
  • On a steeper slope, the shear stress or tangential component of gravity, gt, increases, and the perpendicular component of gravity, gp, decreases.

 

  • The forces resisting movement down the slope are grouped under the term shear strength which includes frictional resistance and cohesion among the particles that make up the object.
  • When the sheer stress becomes greater than the combination of forces holding the object on the slope, the object will move down-slope.
  • Alternatively, if the object consists of a collection of materials like soil, clay, sand, etc., if the shear stress becomes greater than the cohesional forces holding the particles together, the particles will separate and move or flow down-slope.

ShearStressSteepSlopeDiagramB.jpg

 

Click here for a sample slope repair plan

 

When does Hillside get involved?  (Right now, please call us at 760-451-8600)

You can get us involved at any stage in the process. 

Have you already obtained a geotechnical or civil engineer? Let us help you with the rest of it. 

Do you already have a permit and you’re ready to go.  Give us a call and we’ll provide a competitive quote for the construction.

Is your project stuck in limbo with unresponsive engineers or city personnel?  We can help.

You are not sure what steps to take? Please read the ‘what steps do I take’ section below

What steps do I take to repair my slope?

 

1) The first thing to do is Call Hillside Slope Restoration at 760-451-8600.  We can help you with the following items:

A) Determine if permits are required in your particular city or county for the repair.  Including what type of permit, SWPPP’s plans, required department approvals, etc.

B) Determine if there is cause for insurance company involvement.  We have been able to interface between multiple property owners, HOA’s, and insurance companies to reach quick settlements and obtain the necessary funds for the repairs

C) Contract with and hire a geotechnical firm that will perform a concise site specific geotechnical investigation of the causes and (working with Hillside) determine the most cost efficient repair plan.

D) Working with our civil engineer, Hillside will provide plans and details, as specified by the geotechnical report, to meet all city requirements and approvals.

E) Assist in obtaining all necessary permits and construction bonds.

F) Build the repair project for you using all of our own equipment and crews in a professional workman like manner.

Please call so we can help you get this process started (760-451-8600).