CN102359776A - Zero reading level measurement method and accurate adjustment structure for height of leveling instrument - Google Patents

Zero reading level measurement method and accurate adjustment structure for height of leveling instrument Download PDF

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Publication number
CN102359776A
CN102359776A CN2011102041394A CN201110204139A CN102359776A CN 102359776 A CN102359776 A CN 102359776A CN 2011102041394 A CN2011102041394 A CN 2011102041394A CN 201110204139 A CN201110204139 A CN 201110204139A CN 102359776 A CN102359776 A CN 102359776A
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CN
China
Prior art keywords
leveling instrument
spirit
height
leveling
backsight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011102041394A
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Chinese (zh)
Inventor
张杰胜
张宏斌
刘武生
方太平
董上锋
刘晓东
米之银
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
First Engineering Co Ltd of CTCE Group
Original Assignee
First Engineering Co Ltd of CTCE Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by First Engineering Co Ltd of CTCE Group filed Critical First Engineering Co Ltd of CTCE Group
Priority to CN2011102041394A priority Critical patent/CN102359776A/en
Publication of CN102359776A publication Critical patent/CN102359776A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a zero reading level measurement method and an accurate adjustment structure for the height of a leveling instrument; the zero reading level measurement method is characterized by comprising the following steps of: in a measurement process, respectively erecting the leveling instrument and a rearview leveling staff at places which are equal to the elevation of the top surface of a measured constructional element; adjusting the height of the leveling instrument so that the top surface of the measured constructional element is flush with the height of a level mark silk thread in the leveling instrument; maintaining the height of the adjusted leveling instrument, defining the position of the corresponding height of the level mark silk thread in the leveling instrument on a rearview leveling staff as a viewpoint A; and measuring the elevation of the rearview point A on the rearview leveling staff by using a known leveling point B, wherein the elevation of the rearview point A is the elevation of the top surface of the measured constructional element. A fore-view leveling staff is not needed to be erected on the top surface of the measured constructional element, thereby being very effective for avoiding the difficulty and insecurity caused by ascending of levellers.

Description

Zero reading level measurement method and spirit-leveling instrument height accurate adjustment structure
Technical field
The present invention relates to an elevation measurement method, and more specifically is the main crossing for road engineering or ditch high Dun leveling.
Background technology
There are many projects in the road ditch crossing or bridge projects, including the construction process of high-Dun leveling is particularly important, the current standard of measurement for the high pier methods include: Level down ruler France, Common Total triangle Elevation France, GPS measured directly access or use long emulated tape directly measured, these measurements require high Dun surveyors boarded top, top in the high pier supporting legislation Front leveling rod, thus not only increase due to vertical feet while climbing resulting measurement difficulty, but also to bring a greater measure of security personnel risks.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, the convenient safety of a kind of measuring process, measuring accuracy height are provided, can satisfying the zero reading level measurement method of the third-class measurement of the level accuracy requirement of highway.
The present invention adopts following technical scheme for the technical solution problem:
The characteristics of zero reading level measurement method of the present invention are to be undertaken by following process:
The place that the elevation of top surface of a, selection and tested member is suitable is set up spirit-leveling instrument and backsight levelling pole respectively; Require the apical side height of tested member and the chi face reading of backsight levelling pole all to be in the scope surveyed of spirit-leveling instrument; The sight line length of spirit-leveling instrument tested member of distance and backsight levelling pole is more or less the same in 1m;
The height of b, adjustment spirit-leveling instrument makes the end face of tested member and the level mark silk thread height flush in the spirit-leveling instrument;
The height of c, the adjusted spirit-leveling instrument of maintenance transfers spirit-leveling instrument towards the backsight levelling pole to, and the respective heights position of level mark silk thread on the backsight levelling pole is backsight point A in definition spirit-leveling instrument this moment;
D, utilize known water on schedule B measure the elevation of the backsight point A on the backsight levelling pole, the elevation of said backsight point A is the elevation of top surface of tested member.
The characteristics of spirit-leveling instrument height accurate adjustment structure of the present invention are that said height accurate adjustment structure is one to be the screw shell structure of vertical setting; The top of the external thread tube of spirit-leveling instrument body supports in the screw shell structure, the internal thread tube in the screw shell structure is supported on the top of spirit-leveling instrument foot rest; Between said external thread tube and internal thread tube, carry out threaded engagement.
Compared with present technology, beneficial effect of the present invention is embodied in:
1, the inventive method need not propped up upright forward sight levelling pole at the end face of tested member, and difficulty and the insecurity therefore having avoided survey crew to ascend a height bringing are very effective.
2, the inventive method is not owing to need survey crew to climb up Gao Dun; Therefore; Accomplish as yet at the support that is used to climb high pier and can carry out the measurement of higher degree of high pier end face before setting up, for next step operation provides required elevation, can effectively increase work efficiency thus in advance.
3, spirit-leveling instrument height accurate adjustment structure makes the height of spirit-leveling instrument can access adjustment fast, accurately among the present invention, has thoroughly taken on a new look and only can utilize levelling tripod on three feets, to adjust the situation that wastes time and energy and can not guarantee to adjust precision repeatedly in the prior art.
Description of drawings
Fig. 1 is the reconnaissance position view in the inventive method;
Fig. 2 is for using spirit-leveling instrument height accurate adjustment structural representation in the methods of the invention;
Label among the figure: 1 spirit-leveling instrument body; 2 external thread tubes; 3 internal thread tubes; 4 spirit-leveling instrument foot rests; 21 backsight levelling poles; 22 tested members; 23 spirit-leveling instruments.
Embodiment
Zero reading level measurement method referring in Fig. 1, the present embodiment is to be undertaken by following process:
1, the place that the elevation of top surface of selection and tested member 22 is suitable is set up spirit-leveling instrument 23 and backsight levelling pole 21 respectively; Require the apical side height of tested member 22 and the chi face reading of backsight levelling pole 21 all to be in the scope surveyed of spirit-leveling instrument 23; The tested member 22 of spirit-leveling instrument 23 distances is more or less the same in 1m with the sight line length of backsight levelling pole 21;
2, accurately adjust the height of spirit-leveling instrument 23, make the end face of tested member 22 and the level mark silk thread height flush in the spirit-leveling instrument 23;
3, keep the height of adjusted spirit-leveling instrument 23, transfer spirit-leveling instrument 23 towards backsight levelling pole 21 to, the respective heights position of level mark silk thread on backsight levelling pole 21 is backsight point A in the definition spirit-leveling instrument 23 this moment;
4, utilize the elevation of the backsight point A on the known water B measurement on schedule backsight levelling pole 21, the elevation of backsight point A is the elevation of top surface of tested member 22, accomplishes and measures.
Referring to Fig. 2; For spirit-leveling instrument 23 can be adjusted rapidly and accurately, improve the measuring accuracy of spirit-leveling instrument 23, provide spirit-leveling instrument height accurate adjustment structure in the present embodiment; Shown in Figure 2; Height accurate adjustment structure is one to be the screw shell structure of vertical setting, and spirit-leveling instrument body 1 is supported on the top of the external thread tube 2 in the screw shell structure, and the internal thread tube 3 in the screw shell structure is supported on the top of spirit-leveling instrument foot rest 4; In the use, at first adjust spirit-leveling instrument foot rest 4, accurately locate the precise height of spirit-leveling instrument 23 again through the careful adjustment of threaded engagement between double thread sleeve China and foreign countries' thread barrel 2 and the internal thread tube 3 with the coarse adjustment of quick completion to spirit-leveling instrument 23 height.

Claims (2)

1. zero reading level measurement method is characterized in that being undertaken by following process:
The suitable place of elevation of top surface of a, selection and tested member (22) is set up spirit-leveling instrument (23) and backsight levelling pole (21) respectively; Require the apical side height of tested member (22) and the chi face reading of backsight levelling pole (21) all to be in the scope surveyed of spirit-leveling instrument (23); Spirit-leveling instrument (23) the tested member of distance (22) is more or less the same in 1m with the sight line length of backsight levelling pole (21);
The height of b, adjustment spirit-leveling instrument (23) makes the end face of tested member (22) and the level mark silk thread height flush in the spirit-leveling instrument (23);
C, keep the height of adjusted spirit-leveling instrument (23), transfer spirit-leveling instrument (23) towards backsight levelling pole (21) to, the respective heights position of level mark silk thread on backsight levelling pole (21) is backsight point A in definition spirit-leveling instrument this moment (23);
D, utilize known water on schedule B measure the elevation of the backsight point A on the backsight levelling pole (21), the elevation of said backsight point A is the elevation of top surface of tested member (22).
2. spirit-leveling instrument height accurate adjustment structure that is applied in the described zero reading level measurement of claim 1 method; The said height accurate adjustment of its characteristic structure is one to be the screw shell structure of vertical setting; Spirit-leveling instrument body (1) is supported on the top of the external thread tube (2) in the screw shell structure, and the internal thread tube (3) in the screw shell structure is supported on the top of spirit-leveling instrument foot rest (4); Between said external thread tube (2) and internal thread tube (3), carry out threaded engagement.
CN2011102041394A 2011-07-20 2011-07-20 Zero reading level measurement method and accurate adjustment structure for height of leveling instrument Pending CN102359776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102041394A CN102359776A (en) 2011-07-20 2011-07-20 Zero reading level measurement method and accurate adjustment structure for height of leveling instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102041394A CN102359776A (en) 2011-07-20 2011-07-20 Zero reading level measurement method and accurate adjustment structure for height of leveling instrument

Publications (1)

Publication Number Publication Date
CN102359776A true CN102359776A (en) 2012-02-22

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CN2011102041394A Pending CN102359776A (en) 2011-07-20 2011-07-20 Zero reading level measurement method and accurate adjustment structure for height of leveling instrument

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CN (1) CN102359776A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759704A (en) * 2014-01-15 2014-04-30 王胜杰 Handheld movable elevation mark cursor sliding staff
CN110030985A (en) * 2019-04-11 2019-07-19 江苏省地震局 A kind of moving method of earthquake measurement of the level mark

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800779A (en) * 2005-12-27 2006-07-12 厦门大学 Apparatus and method for measuring tidal flat elevation
CN201514535U (en) * 2009-09-27 2010-06-23 林松国 Image-pickup tripod
CN101799107A (en) * 2010-04-20 2010-08-11 李�杰 Portable tripod
CN202204507U (en) * 2011-07-20 2012-04-25 中铁四局集团第一工程有限公司 Height fine-adjustment structure of level

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800779A (en) * 2005-12-27 2006-07-12 厦门大学 Apparatus and method for measuring tidal flat elevation
CN201514535U (en) * 2009-09-27 2010-06-23 林松国 Image-pickup tripod
CN101799107A (en) * 2010-04-20 2010-08-11 李�杰 Portable tripod
CN202204507U (en) * 2011-07-20 2012-04-25 中铁四局集团第一工程有限公司 Height fine-adjustment structure of level

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈良珍: "普通钢板尺配合水准仪的精密水准测量", 《第六届全国矿山测量学术讨论会论文集》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759704A (en) * 2014-01-15 2014-04-30 王胜杰 Handheld movable elevation mark cursor sliding staff
CN110030985A (en) * 2019-04-11 2019-07-19 江苏省地震局 A kind of moving method of earthquake measurement of the level mark

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Application publication date: 20120222

C02 Deemed withdrawal of patent application after publication (patent law 2001)