site survey & soil investigation

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By: Hughes62 (36 month(s) ago)

This is a very nicely presented, useful introduction to site investigation.

By: chirath (54 month(s) ago)

Brilliant work............................i like this presentation...........

Presentation Transcript

CONSTRUCTION : 

CONSTRUCTION CONSTRUCTION SITE SURVEY matadam97@yahoo.com.my

INTODUCTION : 

INTODUCTION CONSTRUCTION SITE SURVEY Land Surveying Soil Testing to determine the differences in elevation plotting contour land boundaries measuring distance measuring angles position to know the soil strength to support different load matadam97@yahoo.com.my

Site Map : 

Site Map matadam97@yahoo.com.my

Land Surveying : 

Land Surveying Plotting Contour Land Boundaries Lot 6, 25.184 ac matadam97@yahoo.com.my

Levelling : 

Levelling Method to determine the height of a point on the earth surface from datum To obtain cross section and profile plans for the proposed construction site. Datum Imaginary level point on earth surface Eg. Sea level matadam97@yahoo.com.my

Levels : 

Levels A level is a tool to determine the difference in height between two point. matadam97@yahoo.com.my

Tilting level and its components : 

Tilting level and its components Telescope Air bubble tube Bubble mirror Pivot and spindle Eyepiece lens Telescopic horizontal axis Telescopic focusing screw Round air bubble Tilting screw Clamp screw Telescopic base axis Adjusting footscrew matadam97@yahoo.com.my

Types of tilting level : 

Types of tilting level Optical Level Digital Level Auto Focus Level Precise Level matadam97@yahoo.com.my

Levelling Staff : 

Levelling Staff 1.6 1.5 matadam97@yahoo.com.my

Levelling Technique : 

Levelling Technique datum h1 h2 h A B Lavelling staff Lavelling staff Reduced level at point A (HA) Reduced level at point B (HB) Collimation line Level h = h1 – h2 HB = HA + h matadam97@yahoo.com.my

Different Levelling Area : 

Different Levelling Area 0.590 1.860 1.415 1.085 1.365 2.655 2.815 2.440 0.535 matadam97@yahoo.com.my

Levelling Documentataion : 

Levelling Documentataion matadam97@yahoo.com.my

Levelling Plotting : 

Levelling Plotting Reduced level Chainage Imaginary datum 85.000 matadam97@yahoo.com.my

Practical Soil Work : 

Practical Soil Work Every area has different types of soil. Different soil have different bearing capacity (strength to support load). Different soil have different properties and characteristics. Type of soil can be determined by conducting several test. matadam97@yahoo.com.my

Slide 15: 

100 90 80 70 60 50 40 30 20 10 10 100 90 80 70 60 50 40 30 20 100 90 80 70 60 50 40 30 20 10 loam clay foam sandy day loam sandy day clay sandy loam silt silt loam silt clay loam silt clay percent clay percent silt percent sand loamy sand sand matadam97@yahoo.com.my

Soil Gradation Test (Sieve Analysis) : 

Soil Gradation Test (Sieve Analysis) Purpose To find out the percentage of silt, sand and gravel in soil Component Sieve machine Sieve filter Weighing instrument Dry soil sample matadam97@yahoo.com.my

Soil Investigation : The work : 

Soil Investigation : The work matadam97@yahoo.com.my

Sieve analysis data : 

Sieve analysis data matadam97@yahoo.com.my

Slide 19: 

FINE MEDIUM COARSE FINE MEDIUM COARSE FINE MEDIUM COARSE SILT SAND GRAVEL HYDROMETER SIEVE PARTICLE SIZE DISTRIBUTION Soil mass that passed through the sieve % Cumulative total matadam97@yahoo.com.my

Slide 20: 

FINE MEDIUM COARSE FINE MEDIUM COARSE FINE MEDIUM COARSE SILT SAND GRAVEL HYDROMETER SIEVE PARTICLE SIZE DISTRIBUTION Soil mass that passed through the sieve % Cumulative total matadam97@yahoo.com.my

Slide 21: 

FINE MEDIUM COARSE FINE MEDIUM COARSE FINE MEDIUM COARSE SILT SAND GRAVEL HYDROMETER SIEVE PARTICLE SIZE DISTRIBUTION Soil mass that passed through the sieve % Cumulative total 0 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 10 100 Particle size analysis Good grade soil contain wide range in particle uniform curve & lies across Poor grade soil - mix of silt and gravel - Particle size between 0.2 & 0.6 Very poor grade soil - sand type - Almost same type of particle matadam97@yahoo.com.my

Soil characteristics : 

Soil characteristics Adhesive consists of fine particles that Wet : bond together. Dry : become hard solid. eg. Clay and silt. Non-Adhesive consists of multiform particle that won’t bond if there are water exist. eg. sand and gravel matadam97@yahoo.com.my

Slide 23: 

matadam97@yahoo.com.my

Soil characteristics : 

Soil characteristics Air content Moisture content Organic matter content Soil particle Pocket Large particle create large pocket and the particle become loose Water content High water content (moisture) of soil has low bearing capacity Organic matter decay easily. The decay of organic matter creates air pocket and filled with air and water. High organic matter of soil has low bearing capacity. matadam97@yahoo.com.my