61. Soils containing organic matter are of spongy nature.
62. The soil moisture driven off by the heat is called Hydroscopic Water.
63. Through a point in a loaded soil the principal stress is maximum on major principal plane.
64. For testing saturated clay for shear strength unconfined compression test is recommended.
65. On wetting the cohesive soils decreases the shear strength.
66. Cohesive soils are generally plastic and compressible.
67. The angle of internal friction of clays is generally 5 degree to 20 degree .
68. Angle of internal friction is maximum for angular grained dense sand. Minimum for clay.
69. A failure wedge develops if a retaining wall moves away from the backfill.
70. The lateral pressure exerted by the soil when the retaining wall moves away from the back fill is Active Earth Pressure. It is proportional to tan2 (45 + Φ)
71. The lateral pressure exerted by the soil when the retaining wall moves towards the back fill is Passive Earth Pressure. It is proportional to tan2 (45 + Φ)
72. The lateral earth pressure exerted by the soil when the retaining wall has no movement relative to the backfill is Earth Pressure at Rest.
73. Ultimate Bearing Capacity: - It is the minimum gross pressure at the base of the foundation at which the soil fails in shear.
74. Safe Bearing Capacity: The maximum pressure which the soil can carry safely without any risk of shear failure.
75. The Minimum Depth of Foundation for sandy soils is 80 cm to 100 cm. ; For clayee soil is 90 to 160 cm. for rocky soil it is 5 to 50 cm.
76. Number of piles ton support a column is 3.
77. Under reamed piles are generally board piles.
78. The shearing strength of a cohessionless soil is depends upon confining pressure
79. Sp. Gravity of quartz is 2.65. For Calcite it is 2.72.
80. Stokes law states that the velocity at which a grain settles out of suspension, the other factors remaining constant is dependent on shape, size and weight of grain.
81. Mr Terzaghi is called ‘Father of Soil Mechanics’.
82. Stabilization of soil is various process employed for modifying the properties of a soil to improve the engineering performances (strength, stability) to reduce the construction costs.
83. In SOIL-CEMENT Stabilization amount of cement varies from 5 to 15% by weight of dry soil.It is done for fine grained, cohessive soils.
84. In Lime-Soil Stabilization hydrated lime is used 2 to 8% of dry soil. It is done for coarse grained soils.
85. When water flows through a saturated soil mass, the Total Head at any point in the soil mass consists of (i) Pressure Head or Piezometer Haed, (i) the Velocity Head, & (iii) Position Head or Elevation Head.
86. SEEPAGE PRESSURE is a pressure exerted by water on the soil through which it percolates.
62. The soil moisture driven off by the heat is called Hydroscopic Water.
63. Through a point in a loaded soil the principal stress is maximum on major principal plane.
64. For testing saturated clay for shear strength unconfined compression test is recommended.
65. On wetting the cohesive soils decreases the shear strength.
66. Cohesive soils are generally plastic and compressible.
67. The angle of internal friction of clays is generally 5 degree to 20 degree .
68. Angle of internal friction is maximum for angular grained dense sand. Minimum for clay.
69. A failure wedge develops if a retaining wall moves away from the backfill.
70. The lateral pressure exerted by the soil when the retaining wall moves away from the back fill is Active Earth Pressure. It is proportional to tan2 (45 + Φ)
71. The lateral pressure exerted by the soil when the retaining wall moves towards the back fill is Passive Earth Pressure. It is proportional to tan2 (45 + Φ)
72. The lateral earth pressure exerted by the soil when the retaining wall has no movement relative to the backfill is Earth Pressure at Rest.
73. Ultimate Bearing Capacity: - It is the minimum gross pressure at the base of the foundation at which the soil fails in shear.
74. Safe Bearing Capacity: The maximum pressure which the soil can carry safely without any risk of shear failure.
75. The Minimum Depth of Foundation for sandy soils is 80 cm to 100 cm. ; For clayee soil is 90 to 160 cm. for rocky soil it is 5 to 50 cm.
76. Number of piles ton support a column is 3.
77. Under reamed piles are generally board piles.
78. The shearing strength of a cohessionless soil is depends upon confining pressure
79. Sp. Gravity of quartz is 2.65. For Calcite it is 2.72.
80. Stokes law states that the velocity at which a grain settles out of suspension, the other factors remaining constant is dependent on shape, size and weight of grain.
81. Mr Terzaghi is called ‘Father of Soil Mechanics’.
82. Stabilization of soil is various process employed for modifying the properties of a soil to improve the engineering performances (strength, stability) to reduce the construction costs.
83. In SOIL-CEMENT Stabilization amount of cement varies from 5 to 15% by weight of dry soil.It is done for fine grained, cohessive soils.
84. In Lime-Soil Stabilization hydrated lime is used 2 to 8% of dry soil. It is done for coarse grained soils.
85. When water flows through a saturated soil mass, the Total Head at any point in the soil mass consists of (i) Pressure Head or Piezometer Haed, (i) the Velocity Head, & (iii) Position Head or Elevation Head.
86. SEEPAGE PRESSURE is a pressure exerted by water on the soil through which it percolates.
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