CN109000561A - For measuring the measuring device and its measurement method of sea cave volume - Google Patents

For measuring the measuring device and its measurement method of sea cave volume Download PDF

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Publication number
CN109000561A
CN109000561A CN201810744614.9A CN201810744614A CN109000561A CN 109000561 A CN109000561 A CN 109000561A CN 201810744614 A CN201810744614 A CN 201810744614A CN 109000561 A CN109000561 A CN 109000561A
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CN
China
Prior art keywords
sea cave
dial
measuring
range finder
volume
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Pending
Application number
CN201810744614.9A
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Chinese (zh)
Inventor
常方强
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Huaqiao University
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Huaqiao University
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Application filed by Huaqiao University filed Critical Huaqiao University
Priority to CN201810744614.9A priority Critical patent/CN109000561A/en
Publication of CN109000561A publication Critical patent/CN109000561A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses a kind of for measuring the measuring device and its measurement method of sea cave volume, including pedestal, vertical bar, bracket and laser range finder, vertical bar is arranged on the base, and bracket is installed on vertical bar, the bracket has a cross bar, the affixed dial in cross bar one end.It is provided with holder on the dial, which connect with dial rotation, and laser range finder is mounted on holder, and holder is fixed with pointer, is used to indicate the rotation angle of laser range finder.Pointer by the way that holder is arranged in cooperates dial to measure the angle and distance of laser range finder different rotation angle in the horizontal direction, and cooperate bracket fixation measuring laser range finder in the height of vertical direction by vertical bar, it draws to obtain the sea cave horizontal profile form on different height using mapping software and measures volume, the sea cave volume on different height is calculated by formula, the volume acquired is added up to sea cave total volume.Apparatus structure of the present invention is simple, easy to operate.

Description

For measuring the measuring device and its measurement method of sea cave volume
Technical field
The present invention relates to coastal geology disaster fields, and in particular to a kind of for measuring the measuring device of sea cave volume And its measurement method.
Background technique
Sea cave is the cave that the Weak points of rock matter seascarp are formed after wave erosion, the formation mechenism with land cave Difference, sea cave are caused by wave mechanical erosion.The positions such as joint fissure, weak intercalated layer and the weak vein of rock matter seascarp hold Easily by wave erosion, and then avalanche, broken etc. occurs, gradually forms sea cave.When wave rushes in sea cave, the meeting in hole Cause huge air pressure, when wave is far from sea cave, air pressure dissipates, and sea cave country rock is acted in this circulating pressure Lower intensity constantly weakens, and gradually corrodes, is broken, causing sea cave volume increasing.The volume of sea cave differs in size, Gao Kuan It is all distributed from tens of rice to several tens cm.The volume for measuring sea cave, erosion mechanism, clear wave strip for understanding seascarp Development process of relationship and sea cave of part and erosion amount etc. is all of great significance.Sea cave biggish for volume, can be with It is measured by instruments such as total station, levels, and calculates its volume by mathematical method;However for the sea of small volume Scoring, personnel cannot be introduced into, therefore traditional measuring instrument is not available.
Summary of the invention
The present invention provides a kind of for measuring the measuring device and its measurement method of sea cave volume, and which overcome backgrounds Technical problem present in technology.
The technical solution adopted by the present invention to solve the technical problems first is that:
It is a kind of for measuring the measuring device of sea cave volume, including pedestal, vertical bar, bracket and laser range finder, it is described Vertical bar is arranged on the base, and the bracket is installed on the vertical bar and can move up and down along the vertical bar, and the bracket has one Cross bar, described cross bar one end are connected with dial;
A holder is provided on the dial, which connect with the dial rotation, the laser range finder peace On the holder, pointer is fixed on the holder, the dial is directed toward in described pointer one end, is used to indicate described sharp The rotation angle of optar.
In preferred embodiment, the dial center offers drilling, and the holder passes through the drilling and the quarter Scale rotation connection.
In preferred embodiment, the bracket includes sleeve and at least two lock bolts, and the sleeve adaptation is sheathed on perpendicular It is tightly fixed on the vertical bar on bar and by the bolt lock;The affixed sleeve side of cross bar, the cross bar and perpendicular Bar is vertically arranged.
In preferred embodiment, several spirit bubbles are provided on the pedestal.
In preferred embodiment, the vertical bar and dial are provided with scale, and the dial is circle.
The technical solution adopted by the present invention to solve the technical problems second is that:
For measuring the measurement method of sea cave volume, comprising the following steps:
(1) the hole two edges line of two sides is made into the parallel lines of line on the outside of sea cave at sea cave hole As baseline;
(2) pedestal is placed on baseline, adjustment pedestal makes the most bottom position of pedestal and sea cave align and keeps horizontal State, vertical bar are arranged in base top surface;
(3) sleeve being sheathed on vertical bar and being regulated down to away from base height is H1Place, by the fixed simultaneously rotating clip of sleeve Seat, the point that laser range finder is issued are aligned at the leftmost edge of sea cave, and reading dial and obtaining rotation angle is α11, laser The distance that rangefinder is measured is L11
(4) holder is rotated to the right, so that the point that laser range finder issues is to moving inside sea cave, 2-5 ° of rotation every time, Record rotation angle and distance, angle when jth time rotates are α1j, distance is L1j, until the point that laser range finder issues reaches Most edge on the right side of sea cave obtains the horizontal profile data that height is sea cave at H1cm;
(5) sleeve is adjusted up with preset height, respectively obtaining height is HiWhen, the rotation angle [alpha] of each positionijWith Distance Lij, until laser range finder reaches the top of sea cave, wherein HiAnd LijUnit be cm;
(6) it is drawn on Auto-CAD software, the position that a point represents laser range finder is drawn, according to angle [alpha]ij With distance LijDraw out point Dij, by each point DijUsing spline curve line, section shape of the sea cave at different height is obtained The head and the tail of spline curve are connected by state using straight line, and the area measurement function of being carried using Auto-CAD software measures batten The area A that curve and straight line surroundj
(7) according to formulaCalculate the volume V, unit m of sea cave3
Preferably, in step (3), pedestal is adjusted to horizontality by adjusting spirit bubble.
Compared with the prior art, it has the following advantages:
Cooperate dial to measure laser range finder by the pointer being arranged on holder and rotates difference in the horizontal direction Angle and distance when angle, and calculate and fixed by vertical bar cooperation bracket and measure laser range finder in the vertical direction Highly, the sea cave horizontal profile form on different height is obtained using Auto-CAD Software on Drawing and measure volume, lead to The sea cave volume that formula is calculated on different height is crossed, the volume acquired is added to the total volume that can obtain sea cave. Measuring device structure of the present invention is simple, easy to operate.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the elevation of measuring device of the invention;
Fig. 2 is the schematic diagram of dial and holder of the invention.
Specific embodiment
Embodiment:
Fig. 1 and Fig. 2 are please referred to, the present invention provides a kind of for measuring the measuring device of sea cave volume, including pedestal 1, vertical bar 2, bracket 3 and laser range finder (not shown).
In specific structure, the vertical bar 2 is arranged on pedestal 1, and the bracket 3 is installed on the vertical bar 2 and energy edge should Vertical bar 2 moves up and down, and the bracket 3 has a cross bar 31, and described 31 one end of cross bar is connected with dial 4, on the dial 4 It is provided with a holder 5, the holder 5 and the dial 4 are rotatablely connected, and the laser range finder is mounted on the holder 5, institute It states and is fixed with pointer 51 on holder 5, the dial 4 is directed toward in described 51 one end of pointer, is used to indicate the laser range finder Rotate angle.
In the present embodiment, the pedestal 1 is made of steel plate, and in flat cube, and on the pedestal 1, there are four water for setting Flat bubble (not shown), is adjusted pedestal to horizontality by adjusting four spirit bubbles.
In the present embodiment, the dial 4 is semicircle, and the diameter side end portion of the fan dial 4 is welded on cross The end of bar 31 is to realize fixation.4 center of dial offers drilling 41, the holder 5 by the drilling 41 with The dial 4 is rotatablely connected.
In the present embodiment, the bracket 3 further includes sleeve 32 and two lock bolts 33, and the adaptation of sleeve 32 is sheathed on It on vertical bar 2, is opened up on the sleeve 32 there are two screw hole (not shown), which is spirally connected described two A screw hole is being locked the sleeve 32 on cross bar 31.Specifically, affixed 32 side of sleeve of the cross bar 31, institute Cross bar 31 is stated to be vertically arranged with vertical bar 2.
In the present embodiment, the vertical bar 2 is manufactured using rectangular aluminium-alloy pipe, has certain stiffness and strength, and And scale graduation mark is indicated on the vertical bar 2, the smallest graduation mark unit is cm.The dial 4 indicates scale, and minimum precision is 1°.The holder 5 is in cuboid, is formed using plastic production.
Specifically, the present invention measure sea cave volume measurement method the following steps are included:
(1) the hole two edges line of two sides is made into the parallel lines of line on the outside of sea cave at sea cave hole As baseline;
(2) pedestal 1 is placed on baseline, adjustment pedestal makes pedestal 1 and the most bottom position of sea cave align and keep water Level state, vertical bar 2 are arranged in 1 top surface of pedestal;
(3) sleeve 32 being sheathed on vertical bar 2 and being regulated down to away from base height is H1Sleeve 32 is fixed and is turned by place Dynamic holder 5, the point that laser range finder is issued are aligned at the leftmost edge of sea cave, and reading dial 4 obtains rotation angle and is α11, the distance that laser range finder is measured is L11
(4) holder 5 is rotated to the right, so that the point that laser range finder issues is to moving inside sea cave, 2-5 ° of rotation every time, Record rotation angle and distance, angle when jth time rotates are α1j, distance is L1j, until the point that laser range finder issues reaches Most edge on the right side of sea cave, obtaining height is H1The horizontal profile data of sea cave at cm;
(5) sleeve 32 is adjusted up with preset height, respectively obtaining height is HiWhen, the rotation angle [alpha] of each positionij With distance Lij, until laser range finder reaches the top of sea cave, wherein HiAnd LijUnit be cm;
(6) it is drawn on Auto-CAD software, the position that a point represents laser range finder is drawn, according to angle [alpha]ij With distance LijDraw out point Dij, by each point DijUsing spline curve line, section shape of the sea cave at different height is obtained The head and the tail of spline curve are connected by state using straight line, and the area measurement function of being carried using Auto-CAD software measures batten The area A that curve and straight line surroundj
(7) according to formulaCalculate the volume V, unit m of sea cave3
Preferably, in step (3), pedestal 1 is adjusted to horizontality by adjusting spirit bubble.
In the present embodiment, H1It is chosen for 5cm, is measured in H1Sea cave horizontal profile data at=5cm, represent sea cave Profile features of the height at 0-10cm.It is adjusted up sleeve to preset the height of 10cm, is measured in H2Marine abrasion at=15cm Hole horizontal profile data represent profile features of the marine abrasion height of holes at 10-20cm, and so on.
The present invention measures laser range finder by the pointer cooperation dial being arranged on holder and revolves in the horizontal direction Turn angle and distance when different angle, and calculates and cooperate bracket to fix by vertical bar and measure laser range finder in vertical side Upward height obtains the sea cave horizontal profile form on different height using Auto-CAD Software on Drawing and measures body Product, is calculated the sea cave volume on different height by formula, and the volume acquired addition can be obtained the total of sea cave Volume.Measuring device structure of the present invention is simple, easy to operate.
It above are only a specific embodiment of the invention, but the design concept of the present invention is not limited to this, all utilizations This design makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.

Claims (7)

1. the measuring device for measuring sea cave volume, including pedestal, vertical bar, bracket and laser range finder, the vertical bar are set It sets on the base, it is characterised in that: the bracket is installed on the vertical bar and can move up and down along the vertical bar, the bracket tool There is a cross bar, described cross bar one end is connected with dial;
A holder is provided on the dial, which connect with the dial rotation, and the laser range finder is mounted on On the holder, pointer is fixed on the holder, described pointer one end is directed toward the dial, is used to indicate the Laser Measuring The rotation angle of distance meter.
2. according to claim 1 for measuring the measuring device of sea cave volume, it is characterised in that: in the dial Heart position offers drilling, and the holder is connect by the drilling with the dial rotation.
3. according to claim 1 for measuring the measuring device of sea cave volume, it is characterised in that: the bracket includes Sleeve and at least two lock bolts, the sleeve adaptation are sheathed on vertical bar and are tightly fixed on by the bolt lock described perpendicular On bar;The affixed sleeve side of cross bar, the cross bar are vertically arranged with vertical bar.
4. according to claim 1 for measuring the measuring device of sea cave volume, it is characterised in that: set on the pedestal It is equipped with several spirit bubbles.
5. according to claim 1 for measuring the measuring device of sea cave volume, it is characterised in that: the vertical bar and quarter Scale is provided with scale, and the dial is circle.
6. it is a kind of as described in claim 1 to 5 for measuring the measurement method of sea cave volume, which is characterized in that including with Lower step:
(1) the hole two edges line of two sides is made into the parallel lines conduct of line on the outside of sea cave at sea cave hole Baseline;
(2) pedestal is placed on baseline, adjustment pedestal makes the most bottom position of pedestal and sea cave align and keeps horizontality, Vertical bar is arranged in base top surface;
(3) sleeve being sheathed on vertical bar and being regulated down to away from base height is H1Sleeve, is fixed and is rotated holder by place, will At the leftmost edge for the point alignment sea cave that laser range finder issues, reading dial and obtaining rotation angle is α11, laser ranging The distance that instrument is measured is L11
(4) holder is rotated to the right, so that the point that laser range finder issues is to moving inside sea cave, 2-5 ° of rotation every time, record Angle and distance is rotated, angle when jth time rotates is α1j, distance is L1j, until the point that laser range finder issues reaches marine abrasion Most edge on the right side of hole, obtaining height is H1The horizontal profile data of sea cave at cm;
(5) sleeve is adjusted up with preset height, respectively obtaining height is HiWhen, the rotation angle [alpha] of each positionijAnd distance Lij, until laser range finder reaches the top of sea cave, wherein HiAnd LijUnit be cm;
(6) it is drawn on Auto-CAD software, the position that a point represents laser range finder is drawn, according to angle [alpha]ijWith away from From LijDraw out point Dij, by each point DijUsing spline curve line, profile morphology of the sea cave at different height is obtained, The head and the tail of spline curve are connected using straight line, the area measurement function of being carried using Auto-CAD software measures batten song The area A that line and straight line surroundj
(7) according to formulaCalculate the volume V, unit m of sea cave3
7. according to claim 6 for measuring the measurement method of sea cave volume, in step (3), pass through adjust it is horizontal Bubble adjusts pedestal to horizontality.
CN201810744614.9A 2018-07-09 2018-07-09 For measuring the measuring device and its measurement method of sea cave volume Pending CN109000561A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109458938A (en) * 2019-01-05 2019-03-12 深圳市清华苑工程结构鉴定有限公司 A kind of width of measuring device and its measurement method of beam
CN110426379A (en) * 2019-08-08 2019-11-08 南京林业大学 A kind of rotary timber single fiber sectional area measuring device and method
CN111220081A (en) * 2020-01-20 2020-06-02 苏交科集团检测认证有限公司 Device and method for detecting central height of cross beam of corrugated beam steel guardrail
CN111220040A (en) * 2019-12-11 2020-06-02 湖南联智科技股份有限公司 Structural member crack measuring method and device
CN112945098A (en) * 2021-02-04 2021-06-11 常州大学 Irregular object non-contact type volume measuring device and method based on digital laser measuring instrument

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347810A (en) * 1999-02-23 2000-09-13 Nestle & Frischer Gmbh & Co Kg Measuring building arches
CN2439014Y (en) * 2000-09-18 2001-07-11 中国科学院金属研究所 Non-contact three-dimensional measuring instrument
CN101266133A (en) * 2008-04-11 2008-09-17 华南农业大学 Mechanical and visual related positioning experiment platform
CN101804720A (en) * 2010-03-16 2010-08-18 浙江博玛数码电子有限公司 Vision-based online digital electronic engraving quality monitoring method and device
CN103414847A (en) * 2013-07-30 2013-11-27 中铁隧道集团有限公司 Geological logging instrument with feature point positioning function
CN103591890A (en) * 2013-11-19 2014-02-19 北京化工大学 Device and method for mapping large hook-surface-modeling product
CN103791835A (en) * 2014-01-26 2014-05-14 扬州苏庆非标装备研发有限公司 Profile and size detecting method of section of strip-shaped optical glass
CN103868468A (en) * 2014-03-25 2014-06-18 武汉工程大学 Pavement sample structure depth detection platform and method
CN203849032U (en) * 2014-04-09 2014-09-24 镇江市环境监测中心站 Soil sampling space stationing frame
CN104561420A (en) * 2013-10-23 2015-04-29 江苏省沙钢钢铁研究院有限公司 Three-dimensional burden surface measurement device and method for experimental model of burden distribution of blast furnace
CN106019398A (en) * 2016-05-26 2016-10-12 武汉固德超前高新科技研发有限公司 Detecting device, detecting system and detecting method for exploring internal structure of cave
CN106052530A (en) * 2016-07-11 2016-10-26 华侨大学 Sea abrasion groove geometric form measurement apparatus and method
CN206363612U (en) * 2016-12-08 2017-07-28 苑举清 A kind of property teaching aid of mathematics triangle
CN206573111U (en) * 2017-03-31 2017-10-20 黑龙江科技大学 A kind of geographic information data harvester
CN206930276U (en) * 2017-06-23 2018-01-26 中建八局第四建设有限公司 A kind of range unit
CN108168454A (en) * 2017-11-28 2018-06-15 华侨大学 For measuring method of the measuring device of sea cave depth with measuring sea cave depth

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2347810A (en) * 1999-02-23 2000-09-13 Nestle & Frischer Gmbh & Co Kg Measuring building arches
CN2439014Y (en) * 2000-09-18 2001-07-11 中国科学院金属研究所 Non-contact three-dimensional measuring instrument
CN101266133A (en) * 2008-04-11 2008-09-17 华南农业大学 Mechanical and visual related positioning experiment platform
CN101804720A (en) * 2010-03-16 2010-08-18 浙江博玛数码电子有限公司 Vision-based online digital electronic engraving quality monitoring method and device
CN103414847A (en) * 2013-07-30 2013-11-27 中铁隧道集团有限公司 Geological logging instrument with feature point positioning function
CN104561420A (en) * 2013-10-23 2015-04-29 江苏省沙钢钢铁研究院有限公司 Three-dimensional burden surface measurement device and method for experimental model of burden distribution of blast furnace
CN103591890A (en) * 2013-11-19 2014-02-19 北京化工大学 Device and method for mapping large hook-surface-modeling product
CN103791835A (en) * 2014-01-26 2014-05-14 扬州苏庆非标装备研发有限公司 Profile and size detecting method of section of strip-shaped optical glass
CN103868468A (en) * 2014-03-25 2014-06-18 武汉工程大学 Pavement sample structure depth detection platform and method
CN203849032U (en) * 2014-04-09 2014-09-24 镇江市环境监测中心站 Soil sampling space stationing frame
CN106019398A (en) * 2016-05-26 2016-10-12 武汉固德超前高新科技研发有限公司 Detecting device, detecting system and detecting method for exploring internal structure of cave
CN106052530A (en) * 2016-07-11 2016-10-26 华侨大学 Sea abrasion groove geometric form measurement apparatus and method
CN206363612U (en) * 2016-12-08 2017-07-28 苑举清 A kind of property teaching aid of mathematics triangle
CN206573111U (en) * 2017-03-31 2017-10-20 黑龙江科技大学 A kind of geographic information data harvester
CN206930276U (en) * 2017-06-23 2018-01-26 中建八局第四建设有限公司 A kind of range unit
CN108168454A (en) * 2017-11-28 2018-06-15 华侨大学 For measuring method of the measuring device of sea cave depth with measuring sea cave depth

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
常方强等: "激光测距仪在海崖剖面形态快速测量中的应用", 《华侨大学学报(自然科学版)》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109458938A (en) * 2019-01-05 2019-03-12 深圳市清华苑工程结构鉴定有限公司 A kind of width of measuring device and its measurement method of beam
CN109458938B (en) * 2019-01-05 2020-10-20 深圳市清华苑工程结构鉴定有限公司 Width measuring device and method for beam member
CN110426379A (en) * 2019-08-08 2019-11-08 南京林业大学 A kind of rotary timber single fiber sectional area measuring device and method
CN111220040A (en) * 2019-12-11 2020-06-02 湖南联智科技股份有限公司 Structural member crack measuring method and device
CN111220040B (en) * 2019-12-11 2020-10-09 湖南联智科技股份有限公司 Structural member crack measuring method and device
CN111220081A (en) * 2020-01-20 2020-06-02 苏交科集团检测认证有限公司 Device and method for detecting central height of cross beam of corrugated beam steel guardrail
CN111220081B (en) * 2020-01-20 2021-11-05 苏交科集团检测认证有限公司 Device and method for detecting central height of cross beam of corrugated beam steel guardrail
CN112945098A (en) * 2021-02-04 2021-06-11 常州大学 Irregular object non-contact type volume measuring device and method based on digital laser measuring instrument

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Application publication date: 20181214