specification สำหรับงาน survey

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specification สำหรับงาน survey

ตั้งหัวข้อ by bomberserk on Mon Jun 11, 2007 4:38 pm

?ʹՁէҹ͍?Ẻ infrastructure ?ը?´?ҁ?Ñ? ??鍧?҃ specification ʓ˃Ѻ?ҹ topographic survey ?Ñ? ?́յч͂蒧?钧䋁?Ñ?


แก้ไขล่าสุดโดย เมื่อ Wed Jun 13, 2007 12:26 pm, ทั้งหมด 1 ครั้ง

bomberserk

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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by thaitopo on Tue Jun 12, 2007 3:16 am

Ẻ ˹ ФѺ ?
Ӷ ѹҧ˹ ФѺ... Basketball

Ҩ Ҥ ҧͧͪ ˹觢 йҨФ˭ҺҹѴ㹺ҹ ҧкҸóٻ 鹰ҹѡ
¡Ǩ 鹰ҹͧԻ ͡˹ circuration к drainnage ѡ ʹͧѺѡ ҧǡͧ......йʹٻẺ landscape construction

ɳ Ẻ էҹ jointventure ....㹻͹ҹ͹ѹ褧ö Դ¢ǹ...Фҡ file ҹ

繧ҹ ԧҹѴ÷բҴ˭˹ concept ѹк infastructure
ʹǡѺ landscape construction ͧ circuration drainnaged
Ҩо¹ cad file ֡˭梹Ҵ a0 ͧͺ͹ѹ ѹҨеҧѹ仡ҹФѺ Իռᵡҧҡ

㹷ͧ survey 鹰ҹ¹ФѺ....
ҹçҧ ͧкҸóٻ鹰ҹͧç ͧͧͧ кк¹ѡ contour 鹰ҹ С˹ 鹷ҧѭʹͧѹ
Ѻҹ earthworkԴ ҡ⨷˹ա о鹷͹ѹ ( contour Ẻ construction)
ѧ ֧....ҧҹ§ ѡǷҧѡǡѹ ҹ...

ԧ ѹӤѭ͡ present ...˹ҷѺԴͺ֧ç˹
觨˹ ҷͺࢵͧҹҶ١.....ѹش㹤繨ԧ

ҡѧ㹢鹵͹˹ Ǣͧҧ.....Ӷѹҧ仹Դ мҨФԴ˹.....ͧաѡԴФѺ

........

thaitopo
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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by bomberserk on Tue Jun 12, 2007 8:52 am

ͺسҡѺ Тɴ·Ӷҧ˹ Very Happy

繧ҹҧ ç´ ФѺ ͡Ẻǹ infra
ʹ繧ҹҧȪá ¤ԴҨҧ˹ѧͤ¡Ѻ specification standard of topographic survey ʹ١ѺǨ´Һҵͧѧ䧺ҧ

ǡ search search ҡҤѺ

http://www.nspsmo.org/resources/standards.shtml

任ѺاաԴ˹СѺͺࢵͧҹ हФѺ

bomberserk

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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by thaitopo on Tue Jun 12, 2007 9:48 pm

ѡͧѺǨ ͡Ẻ ԧǡͧ§᤹ ФѺ

1 boundary (base plan кԡѴ ʴشҧԧö Ǩͺ㹾鹷)
2 topographic map ( interval ҡ 0.50 m.)
3 detail ˹觵 觡ҧ Ƕ ͧ ٤ͧ

Ӥѭ ͡ҹͶ ˹෤շ ٻẺùʹͧҹ
йѺ jointventure ҡ

ǹǼͧªͺá˹ spect ѡ
еǪҧͧ зӧҹӺҡ ҷè ǹӤѭ 㹢鹵͹.. 觼ŷҹҪ

.....ͧҪվ...ѺҹҴԹǹá͹
surveyor Ш site consult繼˹ ҹТ鹵͹ ͧǹ Ҩŷ١ͧлѴ...ҹФѺ


....ҧ spect ѧҪԡ ǡǷҧ֡ ѹ¹ФѺ

thaitopo
Admin

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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by bomberserk on Wed Jun 13, 2007 12:19 pm

ǹ÷ӧҹͧǨѺ ÷ҵðҹѡǹ˹觡ͨдդѺ
鹤зӧҹӺҡ ҡ˹ ѹк ҹͨسҾҡѹ еǨѴ 繻ª駵ǼǨ, ç м͡Ẻ Ѻ Ҩ鹨ҡ´鹰ҹس thaitopo йӡʹդѺ

´ŧ˹ еѴҧǹ͡ǤѺ س thaitopo Ъ comment ¡ʹդѺ

1. DEFINITIONS
A. Bench Mark is a relatively permanent material object, natural or artificial,
bearing a marked point whose elevation above or below and adopted datum
is known.
B. A Contour is an imaginary line on the ground, all points of which are of the
same elevation above or below a specified datum.
C. The Parcel is the area designated by the client and is usually, but not
necessarily, given by a legal description of the property.
D. Utilities are services provided by governmental and private entities that
provide the following: electric power, telephone, water, sanitary and storm
sewer, gas, etc.
2. RESEARCH AND INVESTIGATION
The Surveyor shall acquire the elevation and datum of all bench marks to be used
in the survey. The elevation used shall be based on a nationally accepted datum
whenever practical or unless otherwise instructed by the client. The client shall
specifically describe the parcel to be surveyed.
3. THE SURVEY
The topographic survey shall be performed on the ground to obtain the information
required in this standard and any additional information requested by the client.
The Surveyor shall select the equipment and procedures necessary to obtain the
horizontal and vertical positional accuracy required by these standards.
4. THE PUBLISHED RESULT
A topographic map or plat shall be prepared that shall be of a scale, size and
accurately to clearly show the results of the survey.
5. DATA
The surveyor shall locate and show on the topographic survey map or plat the
following information:
A. Existing contours lines indicating the shape and elevation of the land over
the entire parcel in accordance with the following table, unless specifically
excluded in the contract with the client:
Map or Plat Scale Contour Interval
1 : 250 250 mm.
1 : 500 250 mm.
1 : 750 250 mm.
1 : 1000 250 or 500 mm.
1 : 2500 500 or 1000 mm.
1 : 5000 1000 or 1500 or 2500 mm.
B. The location of permanent structures including retaining walls, bridges, and
culverts.
C. The location of street or road paving, entrance drive openings and
sidewalks.
D. Elevations on the top of curbs, gutters and sidewalks.
E. The official street or road names and address numbers assigned to the
parcel.
F. North arrow and scale of drawing.
G. Legend depicting the symbols and abbreviations used on the drawing.
H. Spot elevations covering the entire survey limits showing high points, low
points, grade changes, and at sufficient intervals to represent the general
character of the terrain.
I. Provide main floor elevations of buildings.
J. Location and elevation of lakes, rivers, streams or drainage courses on or
near the surveyed parcel.
K. Description, location and elevation of bench marks used in the survey.
L. All Optional items required in Section 7.
6. POSITIONAL ACCURACY
The following relative positional accuracies are provided as a guide for
topographic surveys.
Vertical Horizontal
Positional Accuracy Positional Accuracy
Contour line 250 mm. interval ± 200 mm. ± 250 mm.
Contour line 500 mm. interval ± 400 mm. ± 500 mm.
Contour line 1000 mm. interval ± 800 mm. ± 1000 mm.
Contour line 1500 mm. interval ± 1000 mm. ± 1000 mm.
Contour line 2500 mm. interval ± 2000 mm. ± 2000 mm.
Floor elevations ± 25 mm. ± 250 mm.
Spot paving elevations ± 25 mm. ± 250 mm.
Spot ground elevations ± 50 mm. ± 500 mm.
Sewer invert elevations ± 25 mm. ± 250 mm.
Well defined planimetric features ± 25 mm. ± 250 mm.
7. OPTIONAL ITEMS
The following items may be included in the requirements to be shown on a
topographic survey if specifically and mutually agreed upon by the client and
surveyor:
A. Boundary survey of the parcel.
B. Vicinity map with subject property highlighted.
C. Observable evidence of site use as a solid waste dump, sump or sanitary
landfill.
D. Observable evidence of recent earth moving work, borrow or fill.
E. Location and the top elevation of soil borings or monitoring wells if
ascertainable. (Performed by others)
F. Cross-section of offsite drainage courses for engineering studies.
G. Location and elevation of at least one bench mark within the limits of the
survey.
H. Dimensions of curb, sidewalk, and gutter lines or ditch lines and centerline
of all streets, alleys or roads adjoining the parcel. Indicate type of paving
surface and condition.
I. Location, width and elevation at both ends of all existing sidewalks.
Include a description of the kind and general condition of the sidewalk.
J. Location, diameter, and species of all trees over a 150 mm. diameter.
K. Perimeter outline only of thickly wooded areas unless otherwise directed.
L. Electric utilities – the location of power poles, guy wires, anchors, vaults,
etc., on the parcel or in the streets, roads, alleys, or railroad right of way
adjoining the parcel.
M. Storm, sanitary or combined sewers – the location of all observable
manholes and other structures such as culverts, headwalls, catch basins and
clean-outs on the parcel or in streets, roads alleys or railroad right of way
adjoining the parcel. Include elevations of the top and bottom of manholes
and catch basins. Show type, size, direction of flow and invert elevation of
all pipes or culverts.
N. Water – the location of any water valves, standpipes, regulators, fire
hydrants, etc. that are visible on the parcel.
O. Gas – the location of all valves, meters, and gas line markers that are
visible on the parcel. Show elevation on top of any valves.
P. Telephone – the location of all poles, manholes, boxes, etc that are visible
on the parcel.
Q. Street lighting – the location of all lamp poles, boxes etc
R. Location and dimensions of any existing buildings, tanks, fences,
miscellaneous structures, driveways, or other obstructions on the parcel.
S. Location and description of any building or major structure on adjoining
land that is not more than 25 meters outside the parcel being surveyed
T. Location and elevation of the 25 year floodplain, if applicable for the
surveyed parcel.
U. Location and elevation of swamps, or wetland limits if determined by other
experts.
V. Location of visible rock formations.
8. ELECTRONIC DATA DISTRIBUTION
The client may request the Surveyor to provide the survey data in an electronic
format. These formats include such files as CADD drawing files, digital terrain
model (DTM) files, digital elevation model (DEM) files or Land XML files. When
the Surveyor provides these files, they are only for the benefit of the client on this
specific survey

bomberserk

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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by thaitopo on Thu Jun 14, 2007 1:14 am

100 ǧ..Ҵ´!

http://www.manager.co.th/IndoChina/ViewNews.aspx?NewsID=9500000068493

ֹ...ѡµ....Ѻ´...˹


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Re: specification สำหรับงาน survey

ตั้งหัวข้อ by lersak on Fri Jun 15, 2007 6:25 pm

ҨԴ ´к ԡѴͧ (datum) ǹͧ շ 95
wgs 84 Ǩ˹ datum 㹡Ǩ datum Ẻ
ҾԡѴ дѺ ҧѹѺ 10
͹á秧 駢ͧ н 觻١ҧ ҧ͹ ͧ ˹ ؤ͹ҹԤ
...ӾǡçӺҡ˹Ҩ繧ҹҧ͹ӷ Ҩ connect Ѻͧҷ˹ ͧٷ ࡪ蹴 ٻ¡д ͶԹԴ ҧá ҡպԡ
dzҡ˹ ҳ 40-50 ͤ ͧ

lersak

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