OSHA - SECTION 1926.652 -
SUBPART P - APPENDIX A
EXCAVATIONS - SOIL
CLASSIFICATION LATEST UPDATE
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
Professional Academic Assistance Services
Section 1926.652 - Subpart P - Appendix A: Excavations - Soil
Classification (type A) - Answer: Type A means: cohesive soils
with an unconfined, compressive strength of 1.5 ton per square
foot (tsf) (144 ka) or greater. Examples o cohesive soils are: clay,
silty clay, sandy clay, clay loam and, in some cases, silly clay
loam and sandy clay loam. Cemented soils such as caliche and
hardpan are also considered Type A. However, no soil is — Type
A if:
(i) The soil is fissured; or
(ii) he soil is subject to vibration from heavy traffic
(iii) The soil has been previously disturbed; or
(iv) The soil is part of a sloped, layered system where the layers
dip into the excavation on a slope of
, four horizontal to one vertica (4H:1V) or greater
(v) The material is subject to other factors that wor be classified
as a less stable material.
Section 1926.652 - Subpart P - Appendix A: Excavations - Soil
Classification (Type B) - Answer: Type B means:
(i)Cohesive soil with an unconfined compressive strength great
than 0.5 tsf (48 kPa) but less than 1.5
tsf (144 kPa); or
(ii) Granular cohesionless soils including: angular gravel (simlar.
crushed rock), silt, silt loam, sandy
loam and, in some cases silty clay loam and sandy clay loam.
(iii) Previously disturbed soils except those which would
otherwise be classed as Type C soil.
(iv) Soil that meets the unconfined compressive strength or
cemen. tation requirements for Type A,
but is fissured or subject to vibration; or
(v) Dry rock that is not stable; or
(vi) Material that is part of a sloped, layered system where the
layers dip into the excavation on a
slope less steep than 4 horizontal to one vertical (4H:1V) but
only the material would be classified
SUBPART P - APPENDIX A
EXCAVATIONS - SOIL
CLASSIFICATION LATEST UPDATE
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
Professional Academic Assistance Services
Section 1926.652 - Subpart P - Appendix A: Excavations - Soil
Classification (type A) - Answer: Type A means: cohesive soils
with an unconfined, compressive strength of 1.5 ton per square
foot (tsf) (144 ka) or greater. Examples o cohesive soils are: clay,
silty clay, sandy clay, clay loam and, in some cases, silly clay
loam and sandy clay loam. Cemented soils such as caliche and
hardpan are also considered Type A. However, no soil is — Type
A if:
(i) The soil is fissured; or
(ii) he soil is subject to vibration from heavy traffic
(iii) The soil has been previously disturbed; or
(iv) The soil is part of a sloped, layered system where the layers
dip into the excavation on a slope of
, four horizontal to one vertica (4H:1V) or greater
(v) The material is subject to other factors that wor be classified
as a less stable material.
Section 1926.652 - Subpart P - Appendix A: Excavations - Soil
Classification (Type B) - Answer: Type B means:
(i)Cohesive soil with an unconfined compressive strength great
than 0.5 tsf (48 kPa) but less than 1.5
tsf (144 kPa); or
(ii) Granular cohesionless soils including: angular gravel (simlar.
crushed rock), silt, silt loam, sandy
loam and, in some cases silty clay loam and sandy clay loam.
(iii) Previously disturbed soils except those which would
otherwise be classed as Type C soil.
(iv) Soil that meets the unconfined compressive strength or
cemen. tation requirements for Type A,
but is fissured or subject to vibration; or
(v) Dry rock that is not stable; or
(vi) Material that is part of a sloped, layered system where the
layers dip into the excavation on a
slope less steep than 4 horizontal to one vertical (4H:1V) but
only the material would be classified
