Surveying Flashcards
excavation made at the bottom of a shaft to collect water
sump
horizontal passage or drift which starts from shafts and are commonly spaced at regular intervals
level
construction at a top of a shaft which houses hoisting equipment
headframe
vertical/inclined opening drive upwards in ore from a level
raise
wall/rock under a vein or other steeply inclined mineral formations
footwall
wall/rock on the upper side of steeply inclined deposits
hanging wall
vertical/inclined opening driven downwards from a point inside the mine for the purpose of connecting with a lower level
winze
mined rocks that do not contain minerals
waste
elevator for workers and materials in a mine shaft
cage
mineral deposit that can be worked at a profit under existing economic conditions
ore
vertical/diagonal opening between levels to permit movement of ore by gravity
ore pass
thin deposit of minerals between definite boundaries
vein
exposed part of the vein
outcrop
for dewatering of water
adit
line of intersection between vein and horizontal plane
strike
angle inclination of the vein from horizontal plane
dip
horizontal opening in or near a mineral deposite and parallel to the course of the vein or long dimension of the deposit
drift
vertical/inclined excavation in a mine extending downward from the surface or from some interior point as a principal opening
inclined and vertical shaft
the term applied to the timbering or concrete around the mouth or top of a shaft
collar
underground room or working area from whicch ore is removed
stope
waste rock or other materials used to fill a mined out of stope to prevent caving
backfill
ore deposit of tabular form that lies horizontally or slightly inclined and is commonly parallel to the stratification of the enclosing rocks
bedded deposit
narrow shaft bored in the ground, either vertically or horizontally, constructed for extraction of water or other liquid or gases, mineral exploration etc.
boreholes
coordinates of station balanacan
lat: 13-33-41 N
long: 121-52-03 E
Azi: 9-12-37
accion reinvindicatoria is appropriate when the case
to be settled in the right to own a real property
____ is designed by an archipelagic state for the passage of ships and aircrafts
archipelagic sea lane
a line representing an equal value of a quantity given
isogram
difference in elevation between one contour line and the next
contour interval
the length of a traverse leg may be obtained by multiplying the latitude and the
secant of its reduced bearing
the vertical distance between 2 consecutive contours
contour interval
repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena
vegetative cover
the line normal to the plumb line
level line
open or surface mine site where stone, rocks, and construction materials are extracted
quarry
the azimuth checks for secondary traverse should not exceed
30”
to avoid inconvenience to passengers on highways, the recommended value of the centrifugal ratio is
1/4
removal of volume of earth from the grade
excavation
addition of volume of earth from the grade.
embankment
accumulation of excavation or embankment. helpful for costs of operations.
mass haul diagram
excess of embankment
borrow
excess of excavation
waste
fixed distance where hauling has no cost
free haul distance
distance beyond the free haul distance
overhaul
