CN115096165A - Centimeter ruler for accurately measuring thickness of rock stratum - Google Patents

Centimeter ruler for accurately measuring thickness of rock stratum Download PDF

Info

Publication number
CN115096165A
CN115096165A CN202210875173.2A CN202210875173A CN115096165A CN 115096165 A CN115096165 A CN 115096165A CN 202210875173 A CN202210875173 A CN 202210875173A CN 115096165 A CN115096165 A CN 115096165A
Authority
CN
China
Prior art keywords
rod group
rod
scale
lateral surface
group
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
CN202210875173.2A
Other languages
Chinese (zh)
Inventor
陈留勤
吴文斌
郭福生
刘富军
彭苹
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.)
East China Institute of Technology
Original Assignee
East China Institute of Technology
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 East China Institute of Technology filed Critical East China Institute of Technology
Priority to CN202210875173.2A priority Critical patent/CN115096165A/en
Publication of CN115096165A publication Critical patent/CN115096165A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • G01B5/061Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a centimeter ruler for accurately measuring the thickness of a rock stratum, which comprises a vertical level, a horizontal level, a first graduated rod group and a second graduated rod group, wherein the first graduated rod group and the second graduated rod group are rotatably connected through a knob assembly, the first graduated rod group and the second graduated rod group are respectively detachably connected with the knob assembly, the vertical level is embedded on the outer side surface of the first graduated rod group, the horizontal level is embedded on the outer side surface of the second graduated rod group, and one end of the first graduated rod group and one end of the second graduated rod group are respectively provided with an end assembly. Compared with the traditional complex calculation process of geological profile measurement, the method can realize direct, rapid and accurate measurement of the thickness of the rock stratum in the field geological exploration work, greatly reduce the measurement error and improve the working efficiency.

Description

Centimeter ruler for accurately measuring thickness of rock stratum
Technical Field
The invention relates to the technical field of measuring tools, in particular to a centimeter ruler for accurately measuring the thickness of a rock stratum.
Background
Formation thickness is a common and very important parameter in field geological profiling. Formation thickness is an important parameter for understanding geological history and evaluating geological stability, and generally refers to the true thickness of the formation, i.e., the perpendicular distance between two parallel top and bottom boundaries of the formation. The existing rock stratum thickness measuring tools comprise a tape measure, a measuring rope, a steel tape, a measuring rod, a geological compass, a laser range finder and the like, and are respectively suitable for rock stratum thickness measurement under a specific geological background. In the actual measurement process, due to the limitations of objective factors such as the structure, length, precision and material of the measuring tool and the diversity of formation occurrence, a large error exists between the measured and calculated thickness and the actual thickness. In addition, errors caused by measurement methods and human factors are not negligible, and the common defects of the measurement tools in field work are that the measurement tools have limitations which cannot meet the accurate measurement of the true thickness of most rock formations. Therefore, how to measure the thickness of the rock stratum efficiently and accurately is a practical problem to be solved urgently at present, and the method has important significance for field geological investigation and related scientific research work.
According to the traditional geological profile measuring method, a plurality of parameters such as the azimuth, the gradient, the slant range, the rock formation tendency and the inclination angle of a lead are obtained in the field, and then the thickness of the rock formation can be obtained through formula calculation after the lead returns to the indoor environment. The measurement method and the measurement process are complex, the practical operability is weak in the area where the outcrop of the stratum is discontinuous and the production form is gentle (such as the southern Danxia landform area in China), the error is large, and the accurate thickness of the stratum is difficult to obtain, so that a convenient tool capable of accurately measuring the thickness of the stratum in the field is needed.
Disclosure of Invention
The invention aims to provide a centimeter ruler for accurately measuring the thickness of a rock stratum, which is used for solving the problems in the prior art, realizing the rapid and accurate measurement of the thickness of the rock stratum in the field geological exploration work, simplifying the rock stratum thickness obtaining process, reducing the error and improving the working efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the utility model provides a rock stratum thickness precision measurement centimetre chi, includes vertical level, horizontal level, first scale rod group and second scale rod group, first scale rod group with second scale rod group rotates through knob assembly to be connected, first scale rod group with second scale rod group respectively with knob assembly can dismantle the connection, vertical level inlays to be located first scale rod group lateral surface, horizontal level inlays to be located second scale rod group lateral surface, first scale rod group with the one end of second scale rod group is provided with end subassembly respectively.
Preferably, the first graduated rod group structure is completely consistent with the second graduated rod group structure; the first scale rod group comprises a first branch rod, a second branch rod, a third branch rod and a fourth branch rod, the first branch rod, the second branch rod, the third branch rod and the fourth branch rod are sequentially sleeved and slidably connected, and one end, far away from the knob assembly, of the fourth branch rod is provided with the end head assembly; perpendicular surveyor's level inlays to be located the first minute pole lateral surface of first scale bar group, horizontal surveyor's level inlays to be located the first minute pole lateral surface of second scale bar group.
Preferably, the knob subassembly include two respectively with first scale rod group with the arc board of second scale rod group looks adaptation, the lateral surface of two arc boards respectively the rigid coupling have a bull stick and a commentaries on classics cover, the one end of bull stick insert the one end of commentaries on classics cover and with it rotates to overlap and connects, a plurality of screws have been seted up to the lateral surface of commentaries on classics cover, threaded connection has the jackscrew in the screw, the one end lateral surface of bull stick seted up with the draw-in groove of jackscrew looks adaptation, the jackscrew passes through the draw-in groove with the one end of bull stick is inconsistent to be set up, the both ends rigid coupling of arc board has and is used for fixing first scale rod group or the elastic webbing of second scale rod group.
Preferably, the end assembly comprises a top cap and an inner embedded plate, one end face of the top cap is fixedly connected with one end, far away from the knob assembly, of the fourth dividing rod, one end of the inner embedded plate is rotatably connected with the top face of the top cap, and one side face of the inner embedded plate is attached to one end face of the top face.
Preferably, a nut is fixedly connected to the end face, far away from the knob assembly, of the first branch rod, a screw rod is screwed to the nut, and an extension rod is fixedly connected to the screw rod.
Preferably, the outer side surface of the first branch rod, the outer side surface of the second branch rod, the outer side surface of the third branch rod and the outer side surface of the fourth branch rod are respectively provided with scale values, the scale value of the outer side surface of the first branch rod is 0cm-50cm, the scale value of the outer side surface of the second branch rod is 0cm-45cm, the scale value of the outer side surface of the third branch rod is 0cm-40cm, and the scale value of the outer side surface of the fourth branch rod is 0cm-35 cm.
Preferably, the outer side surface of the extension rod is provided with a scale of 0cm-50 cm.
Preferably, the clamping grooves are formed in the outer side face of one end of the rotating rod at equal intervals.
The invention has the following technical effects:
the method can realize quick and accurate measurement of the true thickness of the rock stratum, has strong adaptability, and is suitable for measurement of the true thickness of various rock stratum under output states.
Compared with other measuring tools, the invention has the advantages of small measuring error, capability of realizing single-person operation, capability of directly obtaining the accurate thickness of the rock stratum in the field, higher measuring precision and convenience for operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic structural view of the first or second set of bars;
FIG. 3 is a schematic diagram of the top cap and insert panel construction;
FIG. 4 is a schematic view of a knob assembly;
FIG. 5 is a schematic cross-sectional view of the joint between the rotary rod and the rotary sleeve;
FIG. 6 is a schematic view of a screw and nut structure;
fig. 7 is a schematic view of the measurement principle.
FIG. 8 is a simplified schematic diagram of an embodiment.
FIG. 9 is a schematic view of the measurement principle two.
Fig. 10 is a simplified schematic diagram of the second embodiment.
Wherein, 1, a vertical level; 2. a level gauge; 3. a first branch rod; 4. a second branch rod; 5. a third branch rod; 6. a fourth branch rod; 7. an arc plate; 8. a rotating rod; 9. rotating the sleeve; 10. carrying out top thread; 11. a card slot; 12. an elastic band; 13. a top cap; 14. an inner panel; 15. a nut; 16. a screw; 17. an extension rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
The centimeter gauge for measuring the thickness of the rock stratum shown in the figures 1-10 comprises a vertical level 1, a horizontal level 2, a first graduated rod group and a second graduated rod group, wherein the first graduated rod group and the second graduated rod group are connected in a rotating mode through a knob assembly, the first graduated rod group and the second graduated rod group are respectively connected with the knob assembly in a detachable mode, the vertical level 1 is embedded in the outer side face of the first graduated rod group, the horizontal level 2 is embedded in the outer side face of the second graduated rod group, and end assemblies are respectively arranged at one ends of the first graduated rod group and the second graduated rod group.
Further, the vertical level 1 and the horizontal level 2 are both instruments capable of determining that one surface is horizontal, which is the prior art and is not described herein again.
The invention can realize the measurement of the thickness of the geological rock stratum through the first graduated rod group and the second graduated rod group which are mutually rotatably connected, and the first graduated rod group and the second graduated rod group can realize the extension and contraction, thereby expanding the measurement range, meanwhile, the addition of the vertical level 1 and the horizontal level 2 realizes the adjustment of the mutual verticality and levelness of the first graduated rod group and the second graduated rod group, and can also realize the representation of the zero-degree line by utilizing the end head assembly arranged at one end of the first graduated rod group and one end of the second graduated rod group, thereby facilitating the reading.
According to the further optimized scheme, the structure of the first scale rod group is completely consistent with that of the second scale rod group; first scale bar group is including first minute pole 3, the second divides the pole 4, the third divides pole 5 and fourth minute pole 6, 3 covers of first minute pole are established at the second divides the pole 4 lateral surfaces, 4 covers of second branch pole are established at the third divides the pole 5 lateral surfaces, 5 covers of third branch pole are established at the fourth minute pole 6 lateral surfaces and first minute pole 3, the second divides the pole 4, have damped sliding connection between adjacent in third branch pole 5 and the fourth minute pole 6, can enough realize flexible each other, also can avoid sliding too smoothly, lead to the registration inaccurate, the one end that knob subassembly was kept away from to fourth minute pole 6 is provided with the end subassembly, vertical level 1 inlays 3 lateral surfaces of first branch pole of locating first scale bar group, horizontal level 2 inlays 3 lateral surfaces of first branch pole of locating the second scale bar group.
Further optimize the scheme, the knob subassembly includes two arc boards 7 with first scale rod group and second scale rod group looks adaptation respectively, the lateral surface of two arc boards 7 rigid coupling respectively has bull stick 8 and commentaries on classics cover 9, the one end of bull stick 8 is inserted and is changeed the one end of cover 9 and rotate with commentaries on classics cover 9 and be connected, a plurality of screws have been seted up to the lateral surface of commentaries on classics cover 9, threaded connection has jackscrew 10 in the screw, draw-in groove 11 with 10 looks adaptations of jackscrew is seted up to the one end lateral surface of bull stick 8 equidistant, jackscrew 10 sets up through draw-in groove 11 and the one end counterbalance of bull stick 8, the both ends rigid coupling of arc board 7 has elastic band 12 that is used for fixed first scale rod group or second scale rod group.
Furthermore, four clamping grooves 11 matched with the jackscrews 10 are formed in the outer side face of one end of the rotating rod 8, and the two arc plates 7 can be matched with the jackscrews 10 to realize rotation at a fixed angle (0 degree, 90 degrees, 180 degrees and 360 degrees) with each other.
According to a further optimized scheme, the end assembly comprises a top cap 13 and an inner embedded plate 14, one end face of the top cap 13 is fixedly connected with one end, far away from the knob assembly, of the fourth divided rod 6, one end of the inner embedded plate 14 is rotatably connected with the top face of the top cap 13, a groove is formed in one side face of one end of the fourth divided rod 6, the inner embedded plate 14 is arranged in the groove, and one side face of the inner embedded plate 14 is attached to one end face of the top face.
Furthermore, one end of the inner panel 14 can rotate 90 degrees around the axis rotationally connected with the top cap 13, one side surface of the opposite side surfaces of the inner panel 14 is attached to one end surface of the top cap 13, and the other side surface of the opposite side surfaces of the inner panel 14 is flush with the zero line of the scale on the fourth quarter rod 6 and can be used as an auxiliary reference line.
Furthermore, the end surfaces of the two top caps 13 fixedly connected with the first scale rod group and the second scale rod group are perpendicular to each other, so that the inner embedded plate 14 can be used as a reference surface when the end surfaces are attached to a horizontal measuring surface.
According to the further optimized scheme, a nut 15 is fixedly connected to the end face, away from the knob assembly, of the first branch rod 3, a screw 16 is screwed to the nut 15, an extension rod 17 is fixedly connected to the screw 16, the extension rod 17 is added, and the measuring range of the device is further expanded.
According to the further optimization scheme, scale values are respectively arranged on the outer side surface of the first branch rod 3, the outer side surface of the second branch rod 4, the outer side surface of the third branch rod 5 and the outer side surface of the fourth branch rod 6, the scale value of the outer side surface of the first branch rod 3 is 0cm-50cm, the scale value of the outer side surface of the second branch rod 4 is 0cm-45cm, the scale value of the outer side surface of the third branch rod 5 is 0cm-40cm, and the scale value of the outer side surface of the fourth branch rod 6 is 0cm-35 cm.
In a further optimized scheme, the outer side surface of the extension rod 17 is provided with scales of 0cm-50 cm.
The working process of the embodiment is as follows:
when the first graduated rod group and the second graduated rod group are independently used as a rock stratum thickness measuring centimeter, the first graduated rod group and the second graduated rod group are mainly suitable for the conditions that the section is vertical and the rock stratum is produced horizontally. As shown in fig. 8, assuming that the cube ABCD-EFGH is a local part of a section rock stratum, the thickness of the measured target rock stratum is the distance from the bottom layer to the top layer, and knowing that the top and bottom layers are parallel, the inner panel 14 is parallel and intersected with the bottom layer, the leveling instrument bubble on the first graduated rod group or the second graduated rod group is kept centered, and the measured thickness is the accurate thickness of the rock stratum.
When the first graduated rod group and the second graduated rod group are connected through the knob assembly to serve as a rock stratum thickness measuring centimeter, the first graduated rod group and the second graduated rod group are mainly suitable for measuring the thickness of a non-vertical section rock stratum. Assuming that the cube ABCD-EFGH is a part of a sectioned rock formation, and the thickness of the measured target rock formation is the distance from the bottom face to the top face, the first and second scale bar sets are known to be upright, the inner panels 14 of the first scale bar set are parallel and intersect at the bottom face, and the inner panels 14 of the second scale bar set are parallel and intersect at the top face, as shown in fig. 10. The bubble of the level gauge on the outer side of the first sub-rod 3 is kept centered, and the distance between any straight line on the top surface and the bottom surface is the shortest, namely the real thickness of the rock stratum.
The first embodiment is as follows:
as shown in FIG. 9, during measurement, only the first set of the graduated rods or the second set of the graduated rods are vertically arranged, the top cap 13 is tightly attached to the bottom layer of the target rock stratum, the inner panel 14 is opened, one side surface of the inner panel is parallel to the bottom layer of the rock stratum, the length of the graduated rods is properly adjusted according to the height of the target rock stratum, and after the measurement is finished, the thickness is measured and read. The use of a single first set of graduations or a second set of graduations is accomplished without the use of extension rods 17 for measuring thicknesses of rock formations below 1 m. The target formation is too high and an extendable rod 17 is screwed to one end of the first sub-rod 3 to take measurements and take readings. The reading in the above example is the true thickness of the formation.
Example two:
in the embodiment, during measurement, the jackscrew 10 is loosened, the rotating rod 8 and the rotating sleeve 9 rotate 90 degrees relatively, then the jackscrew 10 is screwed to be abutted to the clamping groove 11, the rotating rod 8 and the rotating sleeve 9 are prevented from rotating relatively, after the first scale rod group or the second scale rod group is perpendicular to each other, the top cap 13 at the end of the first scale rod group is tightly attached to the bottom layer surface of a target rock stratum, and the corresponding inner embedded plate 14 is opened to be parallel to the bottom layer surface of the rock stratum. And opening the inner panel 14 at the end of the second graduated rod group, properly adjusting the length of the second graduated rod according to the thickness of the target rock stratum and the inclination trend of the section, enabling the top cap 13 at the end of the second graduated rod group to be tightly attached to the top layer of the target rock stratum, enabling the inner panel 14 at the end of the second graduated rod group to be parallel to the top layer of the rock stratum, keeping the bubble in the center by the level gauge on the first graduated rod group or the second graduated rod group, and measuring the thickness and reading after finishing. The thickness of the rock stratum is too large or the profile topography is gentle during measurement, and the measurement can be conveniently carried out through the external extension rod 17. The reading in the above example is the true thickness of the formation.
According to the specific field measurement task, a rock stratum thickness measuring centimeter is strictly operated according to the measurement principle, and accurate first-hand data of the thickness of the field stratum section can be obtained.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (8)

1. The utility model provides a rock stratum thickness precision measurement centimetre chi, a serial communication port, including perpendicular surveyor's level (1), horizontal surveyor's level (2), first scale rod group and second scale rod group, first scale rod group with second scale rod group rotates through knob subassembly to be connected, first scale rod group with second scale rod group respectively with knob subassembly can dismantle the connection, perpendicular surveyor's level (1) inlays to be located first scale rod group lateral surface, horizontal surveyor's level (2) inlay to be located second scale rod group lateral surface, first scale rod group with the one end of second scale rod group is provided with end subassembly respectively.
2. A rock formation thickness precision gauge according to claim 1, wherein: the first graduated rod group structure is completely consistent with the second graduated rod group structure; the first scale rod group comprises a first branch rod (3), a second branch rod (4), a third branch rod (5) and a fourth branch rod (6), the first branch rod (3), the second branch rod (4), the third branch rod (5) and the fourth branch rod (6) are sequentially sleeved and slidably connected, and one end, far away from the knob assembly, of the fourth branch rod (6) is provided with the end head assembly; perpendicular surveyor's level (1) inlays and locates first minute pole (3) lateral surface of first scale bar group, horizontal surveyor's level (2) inlay and locate the first minute pole (3) lateral surface of second scale bar group.
3. A rock formation thickness precision gauge according to claim 2, wherein: knob subassembly include two respectively with first scale rod group with arc board (7) of second scale rod group looks adaptation, the lateral surface of two arc boards (7) rigid coupling respectively have bull stick (8) and commentaries on classics cover (9), the one end of bull stick (8) is inserted change the one end of cover (9) and with it rotates to overlap (9) and connects, a plurality of screws have been seted up to the lateral surface of commentaries on classics cover (9), threaded joint has jackscrew (10) in the screw, the one end lateral surface of bull stick (8) seted up with draw-in groove (11) of jackscrew (10) looks adaptation, jackscrew (10) pass through draw-in groove (11) with the one end of bull stick (8) is inconsistent to be set up, the both ends rigid coupling of arc board (7) has and is used for fixing first scale rod group or elastic band (12) of second scale rod group.
4. A micrometer for accurately measuring the thickness of a rock formation as claimed in claim 2, wherein: the end assembly comprises an ejector cap (13) and an inner embedded plate (14), one end face of the ejector cap (13) is fixedly connected with one end, far away from the knob assembly, of the fourth dividing rod (6), one end of the inner embedded plate (14) is rotatably connected with the top face of the ejector cap (13), and one side face of the inner embedded plate (14) is attached to one end face of the top face.
5. A rock formation thickness precision gauge according to claim 2, wherein: first minute pole (3) are kept away from the one end terminal surface rigid coupling of knob subassembly has nut (15), nut (15) spiro union has screw rod (16), screw rod (16) rigid coupling has extension rod (17).
6. A rock formation thickness precision gauge according to claim 2, wherein: first minute pole (3) lateral surface the second divide pole (4) lateral surface the third divide pole (5) lateral surface with the fourth divides pole (6) lateral surface to be provided with the scale interval respectively, the first scale interval that divides pole (3) lateral surface is 0cm-50cm, the second divides the scale interval of pole (4) lateral surface to be 0cm-45cm, the scale interval that the third divides pole (5) lateral surface is 0cm-40cm, the scale interval of fourth minute pole (6) lateral surface is 0cm-35 cm.
7. An accurate measure of formation thickness in centimeters per square as defined in claim 5 wherein: the outer side surface of the extension rod (17) is provided with 0cm-50cm of scales.
8. A rock formation thickness precision gauge according to claim 3, wherein: the clamping grooves (11) are formed in the outer side face of one end of the rotating rod (8) at equal intervals.
CN202210875173.2A 2022-07-25 2022-07-25 Centimeter ruler for accurately measuring thickness of rock stratum Pending CN115096165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210875173.2A CN115096165A (en) 2022-07-25 2022-07-25 Centimeter ruler for accurately measuring thickness of rock stratum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210875173.2A CN115096165A (en) 2022-07-25 2022-07-25 Centimeter ruler for accurately measuring thickness of rock stratum

Publications (1)

Publication Number Publication Date
CN115096165A true CN115096165A (en) 2022-09-23

Family

ID=83298569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210875173.2A Pending CN115096165A (en) 2022-07-25 2022-07-25 Centimeter ruler for accurately measuring thickness of rock stratum

Country Status (1)

Country Link
CN (1) CN115096165A (en)

Similar Documents

Publication Publication Date Title
CN203769763U (en) Azimuth and obliquity combined measuring instrument for drilling
CN102322896B (en) Omnibearing measurement device and method for tunnel TSP (Total Suspended Particulate) geometric parameter
CN209760321U (en) Inclination measuring device for foundation pit support of building engineering construction
CN217716235U (en) Centimeter ruler for accurately measuring thickness of rock stratum
CN115096165A (en) Centimeter ruler for accurately measuring thickness of rock stratum
CN208443394U (en) A kind of orientation centering rack for short-term legal system beam
CN217585638U (en) Engineering scale rock mass structural plane roughness coefficient measuring device
CN213842583U (en) Multipurpose measuring tool
CN210533371U (en) Building design spot measurement room auxiliary stand is built in room
CN212931426U (en) Foldable and adjustable brick row tape measuring scale
CN221404281U (en) Inclination measuring device for geological survey
CN107218925B (en) Pointer type horizontal and vertical ruler
CN205537652U (en) Building engineering manages and uses detection device
CN218411139U (en) Side slope angle surveying device
CN108896224B (en) Device for measuring ground stress
CN212806871U (en) Building engineering concrete core appearance measuring device
CN221549605U (en) Precast box girder span measuring device
CN2935088Y (en) Perpendicularity and parallelism measurer
CN212747545U (en) Foundation planning device for building planning engineering
CN219081481U (en) Positioning and punching device for geological exploration
CN210513044U (en) Wall body levels detection device in civil engineering
CN220959872U (en) Multifunctional measuring device for building engineering management
CN221764328U (en) Survey and drawing angle chi
CN217541919U (en) Anchor rod type retaining wall anchor hole drilling angle measuring and establishing instrument
CN221630730U (en) Multidimensional measuring and positioning device for decoration

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination