Mobile application technology in levelling for Mining Engineering

Discuss about the Report of Mobile application technology in levelling for Mining Engineering.

Station	E (m)	N(m)
A	-21226.98	-140959.77
B	-20944.56	-141107.20
C	-23763.67	-141101.13
D	-24728.79	-141121.39

 

The rise of the fall in the height of the collimation methods of booking levelling methods is about the triangle having the different coordinates in different angles.

 

The simple technique of erect and linear collimation is ensuring that the reading is possible for the study.

 

The technique of triangulation is that the coordinates of the points have been calculated for the target points. The techniques of trilateration the working with the distances have been done so that the angles can be computed.

 

BS	IS	FS	Remarks
0.599	0.672	0.653	BM 58.031 m AOD
2.587	2.897	3.132	A
2.534	1.565	1.7823	B
1.624	1.911	1.834	C
0.567	0.376	0.768	D
2.244		1.522	E
3.421	3.771	3.872	F
1.334		1.985	G
0.678	0.601	0.752	H
1.589	0.578	2.002	I

Yes according to the readings a lorry of 4.1m can pass under the bridge.

Staff readings	Distance from A	Remarks
1.759	0	BS to A
0.652	40 m	IS
0.091	80 m	FS
1.689		BS
0.430	120 m	IS
0.917	160 m	FS
0.680	130m	BS
0.671	200 m	IS
0.494	240 m	FS
2.243	390m	BS
1.682	280 m	IS
0.216	320 m	FS
1.520	370m	BS
0.686	360 m	FS to B

 

BS	IS	FS	Distance (m)	Remarks
3.094	2.789	2.563	0	Point A
3.672	2.694	2.786	20	Above datum
2.310	2.532	2.344	40	Above Datum
2.654	2.027	2.897	60	Not on Track
1.283	1.478	1.676	80	Point B
2.783	0.829	0.846	100	Point A
2.502	2.346	1.692		Not on track
3.762	1.146	0.762	120	Point A
3.462	0.725	0.891	140	Point A
3.879	3.723	0.332	160	Point B

 

Backsight	Intersight	Foresight	Height of Collimation	RL	Distance	Remarks
1.85	1.65	1.78	88.41	84.03	0m	BM
1.97	4.27	1.32	88.78	89.04	30m	BF
1.78	2.65	2.87	88.92	85.76	60m	CP
1.67	1.78	0.23	91.80	83.87	90m	CP
1.50	1.63	2.89	96.24	98.35	120m	CP
1.69	1.98	0.52	97.98	97.52	150m	CP
1.42	0.97	0.56	92.67	92.00	180m	CP
1.47	0.72	0.67	93.67	92.25	210m	CP
1.81	1.02	0.41	91.87	91.95	240m	CP
1.62	1.10	0.871	95.87	91.87	270m	CP
1.89	1.43	0.678	98.24	91.76	300m	CP
2.89	1.74	0.981	91.63	94.72	180m	Last RL – First RL
9.69	1.78	0.89	92.76	98.64	230m	= 8.80

i)Correct length=50-49.95= 0.5m

ii) The reduced horizontal length used in plotting the survey is 236.78m

iii) The reading is 276.02m

Bay	Length (m)	Difference in level (m)
1	26.898	+ 0.382
2	26.950	- 0.234
3	26.883	+ 0.271
4	26.901	- 0.075

The length of the line is 0.672m

The gradient of the existing slide slope is 4.60m and the additional width of 1.65m is added.

The correct depth of the mineshaft is 463.87m

Plan Lengths (m)	Included angles
	RO-P-Q = 138°15’00”
PQ = 251.23	P-Q-R = 225°36’00”
QR = 213.67	Q-R-S = 272°42’00”
RS = 273.44	R-S-P = 281°14”00”
SP = 388.00	S-P-Q = 300°24’00”

The adjusted coordinates of the Q-R-S is 178°21’06”

Horizontal
Line	Length	Angle	Value
		RO1-A-B	85°27’38”
AB	113.630
		A-B-C	141°41’20”
BC	110.570
		B-C-D	152°28’44”
CD	129.380
		C-D-E	255°18’02”
DE	138.400
		D-E-RO2	139°20’26”

Horizontal
Line	Length	Angle	Value
XY	260853.2	38°41’	376183.7
XP	260985.6	23°16’	376.812.3
XZ	260955.0	38°41’	377387.6

True north describes the north point situation along with its direction unit and angle description. Magnetic north describes about the saturation point of both horizontal and vertical angles. Whole circle refers to the bearing segments all angles that are needed to be calculated.

Angle A	42°47’55”	AB	329.88m
B	135°37’30”	BC	181.60m
C	137°31’50”	CD	265.15m
D	44°02’30”	DA	650.14m

 

Station	Included angle
A	122°42’20”
B	87°16’40”
C	133°08’20”
D	125°55’20”
E	92°47’40”
F	158°06’40”

Borehole	Easting	Northing	Level above datum	Depth to orebody
A	2960	1920	90	400
B	4020	2850	260	300
C	4970	1830	100	500
D	3680	430	390	800

The actual length of the divage is 462.5.

The coordinates of the point at which it meets the lower roadway is 4169.

B = 82.40m w

C = 84.23 e

D = 80.12 N

27.

Station	Clockwise Angle	Length (m)
A B C D E	260° 31’ 18”   123° 50’ 42”   233° 00’ 06”   158° 22’ 48”   283° 00’ 18”	129.352   81.700   101.112   94.273

Horizontal distance from A to B is 200 m

A

AE = 2075

Two methods are used to transfer coordinates from surface to underground such as GPS system and another is GSM system.

One of the process of doing mine surveying is the SVY2302 mine surveying.

GPS stands for global positioning system. By the GPS system any place or element can be tracked. GPS system is worked on the principle of transmitter and receiver. Hen transmitter sends the signal receivers accept all those signals through suitable channels. Through this process tracking activity can be done.

BS	IS	FS	Height of Instrument	RL	Remarks
3.21	2.02	0.78	279.08	277.65	BM
3.12	2.01	0,67	213.89	265.09	BM
2.98	2.34	1,05	299.06	278.07	BM
3.37	1,78	0.40	234.56	278.68	TBM
3.45	2.98	1.09	266.09	277.45	BM
3.98	1.41	0.87	276.12	280.64	TBM
4.12	2.0	0.98	298.09	281.37	TBM

The answer of circle bearing is 75 degree.

Value of the co-ordinate= 45⁰25^/40^//

Contour (m)	190	188	186	184	182
Area (m2)	3150	2460	1630	840	210

It was asked to calculate the volume of the water in the lake between the   182 and 190 contours. After the calculation the result is 132m^3.

Grid Co-ordinates		Ground Level (m)
Easting	Northing
100	100	87.6
200	100	89.0
300	100	90.0
100	200	88.4
200	200	89.7
300	200	90.8
100	300	89.3
200	300	90.6
300	300	91.9

Co-ordinate of the borehole is (200,200)

Overall volume of the overburdened gridded area is 50m^3.

References

Bednarczyk, M. (2014). Mobile application technology in levelling. Acta Geodynamica et Geomaterialia, pp.1-5.

Blackburn, J. (1968). Self-levelling venous pressure transducer. BMJ, 4(5634), pp.825-825.

Collier, R. (1988). Mine surveying at Newlands. Australian Surveyor, 34(4), pp.381-399.

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Culp, R., Gravseth, I. and King, N. (1995). Polarization signals of several common spacecraft materials. [Washington, D.C.: National Aeronautics and Space Administration].

LE NEVE FOSTER, C. (1888). Mine-Surveying. Nature, 38(979), pp.317-318.

Levelling agents for powder coatings. (2000). Metal Finishing, 98(4), p.86.

Speight, J. (2011). An Introduction to Petroleum Technology, Economics, and Politics. Hoboken: Wiley.

Subramanian, R. (2012). Surveying and levelling. New delhi: Oxford university press.

The Action of Electric Currents on Mine Surveying Instruments. (1896). Sci Am, 42(1077supp), pp.17214-17215.