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第八章 高程控制测量 PowerPoint PPT Presentation


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第八章 高程控制测量. 第八章 高程控制测量. §8-1 高程控制测量概述 §8-2 三、四等水准测量 §8-3 三角高程测量 §8-4 图根高程测量 ※§8-5 跨河水准测量 ※§8-6 高程控制网的平差计算. §8-1概述. 一、高程控制测量的 任务和方法 :. 在测区布设一批高程控制点,即水准点,用精确方法测定它们的高程,构成高程控制网。. 高程控制测量的 方法 :水准测量和三角高程测量。. 二、国家高程控制网.

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第八章 高程控制测量

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6458863


6458863

8-1

8-2

8-3

8-4

8-5

8-6


6458863

8-1


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4


6458863

11500km

2500~750km

3200km

480km

5


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,

1~3km


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km

8-1

0.7

Lkmn


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8-2


6458863

m

m

m

mm

mm

DS

65

80

3.0

6.0

2.0

3.0

3

80

DS

5.0

10.0

3.0

5.0

3

100

8-2

DS3


6458863

a2

b2

a1

b1

1(1)

(23

2. 4

3. 5

67

48)

---


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8-3

8-3


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.

1.

2.

3.

4

---


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1

(1)

5m

3m

9=1-2

10=5-6

11=9-10

12=11+12


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(2)

K

K4.6874.787

3mm

2mm

K4.6874.787

13=3+K1-4

14=7+K2-8


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(3)

5mm3mm

(15)=(3)-(7)

(16)=(4)-(8)

17=14-13=15-16100

100mm

17

:18= {[15+16100]}


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2( )

(1)

(2)


6458863

HA=45.286M

+2.331

+2.813

+1.430

-2.244

1

2

A

3

1.6KM

2.0KM

2.1KM

1.7KM

HB=49.579M

B

3


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8-3


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8-3

:

:

:


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S

ABD

B


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Prf


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R=6371km0.08~0.14k=0.14

:


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10

2mm4mm


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1km102km4

DJ232

5mm+510-6


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Dkm

8-3

8-3


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1

(1)iv

(2)v

(3)S

D

8-3

2

(1)SDI

V

(2)Df

(3)f


6458863

10

401

401

402

402

12

401

10

402

401

12

402

+32415

-32247

-04723

+04656

+02732

-02558

Sm

577.157

577.137

703.485

703.490

417.653

417.697

+34.271

-34.024

-9.696

+9.604

+3.345

-3.155

i m

1.565

1.537

1.611

1.592

1.581

1.601

vm

1.695

1.680

1.590

1.610

1.713

1.708

0.022

0.022

0.033

0.033

0.012

0.012

+34.163

-34.145

-9.642

+9.942

+3.225

-3.250

hm

+34.154

-9.630

+3.238

8-4

8-4 :


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8-4

1

100m

2

12


6458863

8-5

i


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2~3m

aI1I2bcI1I2b1b2


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500m

1/2.55


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1

250,

12


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3

3 mm5 mmN S km


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8-6

.

()Lipipi= ABZ1Z2

E:


6458863

Z1Z2E F


6458863

m

km

m

Z1

Z2

Z3

Z4

Z5

+9.279

-9.262

+1.108

-12.169

+5.386

25

20

40

30

25

A

B

C

D

34.260

52.780

47.776

61.073

AB Z1Z2E


6458863

E

FAB Z5F


6458863

CDZ3Z4F

F


6458863

F

EAB

Z5F


6458863

f L5

E

E


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