soil improvement

soil improvement - Soil Improvement Foundation Design CE...

Info iconThis preview shows pages 1–18. Sign up to view the full content.

View Full Document Right Arrow Icon
Soil Improvement Foundation Design CE 482
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Poor Soil Options Move Adapt design Improve soil
Background image of page 2
Swamp
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Soil Improvement Densification/Consolidation Compaction Dynamic compaction Preloading Dewatering Vibro-compaction/Vibro-replacement Geosynthetic reinforcement
Background image of page 4
Densification/Consolidation Mechanism Reduce volume by expelling air from soil matrix Most common methods used Compaction Dynamic compaction Preloading Dewatering
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Compaction Select borrow soil Load/haul/dump Spread soil in layers Alter moisture content Mix to improve uniformity and break lumps Roll/whack
Background image of page 6
Borrow Soil
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Load/Haul
Background image of page 8
Spread Soil
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Roll
Background image of page 10
Roll
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Whack
Background image of page 12
Compaction Equipment weight grew a hundredfold in the 20 th Century (5,000 to 500,000 pounds) Types of rollers Smooth-wheel Rubber-tired Sheeps-foot Vibratory
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Nuclear Gage Field Density Testing
Background image of page 14
Sand Cone Density Test
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Compaction Tests Engineer determines optimum combination of soil properties for the anticipated demand Relationship between soil behavior and placement details Compaction mechanics, laboratory testing, field testing
Background image of page 16
Laboratory Testing Cheaper than field testing Various tests to duplicate field compaction Dynamic (most common) Kneading Static
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 18
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/07/2009 for the course CE 482 at USC.

Page1 / 44

soil improvement - Soil Improvement Foundation Design CE...

This preview shows document pages 1 - 18. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online