GPT-3.5 USCS Soil Classification

uscs-incorrect.py

# Prompt: Write a python code for USCS soil classification
#
# Output:
# USCS Soil Classification
# Based on ASTM D2487-17 Standard Practice for Classification of Soils for Engineering Purposes

# Enter soil properties
percent_gravel = float(input("Enter percent gravel: "))
percent_sand = float(input("Enter percent sand: "))
percent_fines = float(input("Enter percent fines (silt + clay): "))

# Calculate soil classification
if percent_fines < 5:
    if percent_gravel > 50:
        print("Classification: GW - well-graded gravel")
    elif percent_sand > 50:
        print("Classification: SP - poorly-graded sand")
    else:
        print("Classification: GP - poorly-graded gravel")
elif percent_fines >= 5 and percent_fines < 12:
    if percent_gravel > 50:
        print("Classification: GM - silty gravel")
    elif percent_sand > 50:
        print("Classification: SM - silty sand")
    else:
        print("Classification: GP-GM - gravelly, sandy, or clayey silt")
elif percent_fines >= 12 and percent_fines < 50:
    if percent_sand < 50:
        print("Classification: CL - clay")
    elif percent_gravel > percent_sand:
        print("Classification: GC - clayey gravel")
    else:
        print("Classification: SC - clayey sand")
else:
    if percent_sand < 50:
        print("Classification: OL - organic soil")
    else:
        print("Classification: MH - highly organic silt or clay")

with_plasticity_index-incorrect.py

# Prompt: Write a python code for USCS soil classification using liquid limit and plastic limit
# USCS Soil Classification
# Based on ASTM D2487-17 Standard Practice for Classification of Soils for Engineering Purposes

# Enter soil properties
percent_gravel = float(input("Enter percent gravel: "))
percent_sand = float(input("Enter percent sand: "))
percent_fines = float(input("Enter percent fines (silt + clay): "))
liquid_limit = int(input("Enter liquid limit: "))
plastic_limit = int(input("Enter plastic limit: "))

# Calculate soil classification
if percent_fines < 5:
    if percent_gravel > 50 and (percent_sand <= 50 or liquid_limit >= 40):
        print("Classification: GW - well-graded gravel")
    elif percent_sand > 50 and (percent_gravel <= 50 or liquid_limit >= 40):
        print("Classification: SP - poorly-graded sand")
    elif liquid_limit < 50 and plasticity_index >= 4 and percent_sand > 15 and percent_fines < (10 * percent_sand):
        print("Classification: SW - well-graded sand")
    else:
        print("Classification: GP - poorly-graded gravel")
elif percent_fines >= 5 and percent_fines < 12:
    if percent_gravel > 50 and (percent_sand <= 50 or liquid_limit >= 40):
        print("Classification: GM - silty gravel")
    elif percent_sand > 50 and (percent_gravel <= 50 or liquid_limit >= 40):
        print("Classification: SM - silty sand")
    elif liquid_limit < 50 and plasticity_index >= 4 and percent_sand > 15 and percent_fines < (10 * percent_sand):
        print("Classification: SW - well-graded sand")
    else:
        print("Classification: GP-GM - gravelly, sandy, or clayey silt")
elif percent_fines >= 12 and percent_fines < 50:
    if liquid_limit >= 50 and plasticity_index >= 4 and percent_clay >= 50:
        print("Classification: CL - lean clay")
    elif liquid_limit >= 50 and plasticity_index >= 4 and (percent_clay < 50 or percent_sand > (2 * percent_clay)):
        print("Classification: CL-ML - silt-clay")
    elif percent_sand < 50 and percent_clay >= (30 * (percent_sand - 15)):
        print("Classification: CH - clayey gravel")
    elif percent_sand >= 50 and percent_clay >= (30 * (percent_sand - 15)):
        print("Classification: SC - clayey sand")
    else:
        print("Classification: CL-ML - silt-clay")
else:
    if percent_sand < 50 and (liquid_limit < 80 or plasticity_index < 10):
        print("Classification: PT - peat")
    elif percent_sand >= 50 and (liquid_limit < 80 or plasticity_index < 10):
        print("Classification: MH - highly organic silt or clay")
    elif liquid_limit >= 80 and plasticity_index >= 10:
        print("Classification: OH - organic clay")
    else:
        print("Classification: OL - organic soil")