CN207379386U - Measure the instrument of rock mass body crack rate - Google Patents
Measure the instrument of rock mass body crack rate Download PDFInfo
- Publication number
- CN207379386U CN207379386U CN201721159029.XU CN201721159029U CN207379386U CN 207379386 U CN207379386 U CN 207379386U CN 201721159029 U CN201721159029 U CN 201721159029U CN 207379386 U CN207379386 U CN 207379386U
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- crack
- rock mass
- pedestal
- skeleton
- mass body
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Abstract
The utility model discloses the instrument of measurement rock mass body crack rate, including pedestal, skeleton, crack sighting device, fixing device and manual setter；Screw rotary motion under the action of the manual setter, and pass through screw-driven and the crack sighting device in the fixing device is driven to move up and down along it；Pedestal is positioned on rock mass during measurement, and place plane and the plane of flattening in rock cranny group crack to be measured are mutually parallel；Laser beam is mutually parallel with the plane that zero groove on the graduated scale of pedestal side is formed and the plane of flattening in rock cranny group crack to be measured, using a crack of rock cranny group to be measured as starting point, it measures successively from the bottom up, it is wide and the distance between with starting point to record the true gap in this group of crack Zhong Ge cracks, the measurement Fracture Width is wide for true gap, measurement data is accurate, and the calculating for rock mass body crack rate provides parameter；Equipment instrument is smaller, light to be easy to carry about with one, and application method is simple, and field is suitble to measure rock mass body crack.
Description
Technical field
The utility model belongs to geological exploration and geotechnical engineering field, and in particular to one kind measures rock mass for field condition
The instrument of body crack rate.
Background technology
For the Large scale construction of the infrastructure such as railway, highway, the measurement of preliminary engineering rock-mass quality just seems particularly
It is important.The most critical factor for weighing engineering rockrnass quality is the developmental state of rock cranny.The development characteristics in crack can be used very
Multi objective reacts, wherein common index has：Line crack rate, face crack rate and body crack rate.The natural attribute of rock mass determines
Engineering rockrnass quality, which is weighed, most differentiates the index of meaning for body crack rate.
In correlation technique, the balancing method of rock mass body crack rate is field water injection test method and random structure three-dimensional fracture net
Network modelling.Field flood-pot experiment is easy to operate, but the developmental state and connectedness in rock mass body crack can only be judged, no
It can carry out quantitative calculating；Inside rock mass, occasionally there are one or several connective preferable cracks, so that it may real to field water filling
The result judgement tested makes a big impact, therefore field water injection test judges that there are certain blindness to fractured rate of rock mass.With
Mechanism builds three-dimensional fracture network model compared to field water injection test, and operation is increasingly complex, if being used during field construction, difficulty compared with
Greatly.
Utility model content
In view of this, the utility model provides a kind of suitable field measurement rock mass body crack rate light and handy, nimble, easy to operate
Instrument.
In order to solve the above technical problems, the utility model embodiment the technical solution adopted is that, measure rock mass body crack rate
Instrument, including pedestal, skeleton, crack sighting device, fixing device and manual setter；The pedestal is laterally disposed, pedestal
Side is equipped with graduated scale；The skeleton is placed longitudinally, and one end of the pedestal is connected with the bottom of the skeleton；The skeleton
Screw is installed on the longitudinal direction of middle part, the manual setter is connected with the screw, and the fixing device is connected with the wire rod thread,
The crack sighting device is installed in the fixing device, the laser beam that the crack sighting device is sent and the scale
The plane and the plane of flattening in rock cranny group crack to be measured that the graduation mark of ruler is formed are mutually parallel；The manual setter is shaken to drive
The screw rotary motion, the screw drive crack sighting device in the fixing device along above and below it by screw-driven
It is mobile.
Preferably, one end of the pedestal is connected with the bottom of the skeleton by sliding support.
Preferably, the manual setter includes hand-operated wheel；The hand-operated wheel shakes the screw rotary motion；It is described hand
Wheel is opposite with the crack sighting device position positioned at the outside of the skeleton.
Preferably, 0 graduation mark of starting of the graduated scale and the laser sight of the crack sighting device reach bottom
When laser beam formed plane and the plane of flattening in crack to be measured be mutually parallel.
Compared with correlation technique, the advantageous effect for the technical solution that the utility model embodiment provides is to measure rock mass body
The instrument of crack rate, including pedestal, skeleton, crack sighting device, fixing device and manual setter；The pedestal is laterally disposed,
The side of pedestal is equipped with graduated scale；The skeleton is placed longitudinally, and one end of the pedestal is connected with the bottom of the skeleton；It is described
Screw is installed, the manual setter is connected with the screw, the fixing device and the screw spiral shell on the middle part longitudinal direction of skeleton
Line connects, and the crack sighting device is installed in the fixing device, the laser beam that the crack sighting device is sent with
The graduation mark of the graduated scale forms a plane and the plane of flattening in rock cranny group crack to be measured is mutually parallel；It shakes described hand
Device drives the screw rotary motion, and the screw drives the crack sighting device in the fixing device by screw-driven
It moves up and down along it；The pedestal is positioned on rock mass, and place plane and the plane of flattening in rock cranny group crack to be measured are mutual
It is parallel, and be mutually perpendicular to skeleton, the height of the crack sighting device is adjusted by screw；Before measurement, laser beam and zero
The plane and the plane of flattening in crack to be measured that groove is formed are mutually parallel, using a crack of rock cranny group to be measured as starting
Point, measures successively from the bottom up, records that the true gap in this group of crack Zhong Ge cracks is wide and the distance between with starting point, and the measurement is split
Gap width is wide for true gap, is not wide regarding gap, measurement data is accurate, and the calculating for rock mass body crack rate provides parameter；Instrument body
Product is smaller, and light to be easy to carry about with one, application method is simple, field is suitble to measure rock mass body crack, data reliability is higher.
Description of the drawings
Fig. 1 is the instrumentation diagram of the utility model embodiment measurement rock mass body crack rate；
Fig. 2 is the utility model embodiment rock mass body crack rate measuring method flow diagram.
Wherein：Pedestal 1, graduated scale 11, skeleton 2, crack sighting device 3, screw 4, sliding support 5, fixing device 6, hand dress
Put 7, hand-operated wheel 71.
Specific embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type embodiment is further described.
It please refers to Fig.1, the embodiment of the utility model provides the instrument of measurement rock mass body crack rate, including pedestal 1, bone
Frame 2, crack sighting device 3, fixing device 6 and manual setter 7；The pedestal 1 is laterally disposed, and the side of pedestal 1 is equipped with scale
Ruler 11；The skeleton 2 is placed longitudinally, and one end of the pedestal 1 is connected with the bottom of the skeleton 2；It indulges at the middle part of the skeleton 2
Installation screw 4 upwards；The manual setter 7 is connected with the screw 4, and the fixing device 6 is threadedly coupled with the screw 4,
The plane and rock cranny to be measured that the graduation mark of the laser beam that the crack sighting device 3 is sent and the graduated scale 11 is formed
The plane of flattening in group crack is mutually parallel, and the crack sighting device 3 is installed in the fixing device 6；The screw 4 is described
Under the action of manual setter 7 during rotary motion, 3 edge of crack sighting device in the fixing device 6 is driven by screw-driven
The screw 4 moves up and down.When measuring rock mass body crack, the pedestal 1 is positioned on rock mass, adjusts the skeleton 2 and institute
It states pedestal 1 vertically, 4 rotary motion of screw is driven by the effect of the manual setter 7, the screw passes through screw-driven
The adjusting crack sighting device 3 in the fixing device 6 is driven to be moved up and down along the screw 4, so as to adjust its height
Degree；During measurement, adjust crack sighting device 3 height make its laser beam sent institute and the graduated scale 11 zero graduation line
The plane of formation and the plane of flattening in crack to be measured are mutually parallel, and adjust the height of crack sighting device 3 successively from the bottom up, note
The corresponding true gap in crack of scale where recording laser beam is wide and the distance between with starting point, is carried for the calculating of rock mass body crack rate
It is supported for data.
Referring to the drawings 2, the utility model embodiment is additionally provided a kind of data measured using the instrument and calculates rock mass
The method of body crack rate, comprises the following steps：
(1) the rock mass region of generated structural fracture lower to tectonic stress effect and bedding fissure carries out geology
Exploration and information are collected, and number j (j=1,2,3m), the crack in every group of crack are grouped to the fracture set of rock mass
Number is i (i=1,2,3n), selects typical to-be-measured cell sphere of the radius for R；
When actually measuring rock mass body crack, it is ensured that selected joint fissure covers all diagenesis in research area, construction
Crack；The body crack rate of the typical to-be-measured cell sphere of selection can represent the body crack rate of whole district's rock mass；The to-be-measured cell body
Radius of a ball R made choice according to joint plane average headway, the joint interplanar distance of field rock mass mostly within 1cm~100cm,
It is less more than the complete huge thick-layer rock mass of 100cm, so regulation：Joint plane average headway is within 30cm, typical unit body
Radius of a ball R takes 1m；Joint plane average headway takes 2m in 30cm~100cm, typical unit body radius of a ball R；Rock mass is averaged
Joint spacing is more than 100cm, and the definite of the radius of a ball of the typical unit body is determined on a case-by-case basis, and R also can use 0.5m or 3m；
During actual measurement, in a measurement point, each group crack forms the space Fracture Networks of measurement point in space, and each group is split
Gap is measured respectively using the respective centre of sphere as measuring center.The measurement sphere in each group crack in space is overlapped, is considered as
Each group crack is put into the sphere that radius is R during calculating and calculates by homocentric sphere.Any bar crack is approximately small cylinder
Body can calculate the fissure-plane with the distance of reference plane by fissure-plane and intersect the half of obtained fissure-plane with measurement sphere
Footpath is worth, i.e., the bottom surface radius of circle of approximate cylinder, you can to calculate the area of the fissure-plane cut, this area and gap are wide
Product is crack volume shared in sphere.Volume of the grouping mea-sure each group crack in sphere is measured, you can m is obtained
The ratio of crack total volume of the group crack in measurement sphere space, crack's volume and sphere volume is that the body of the measurement point is split
Gap rate；
(2) pedestal 1 is positioned in the plane at maximum radius circle place of the to-be-measured cell sphere, and prolonged with it
Developable surface is mutually parallel；The skeleton 2 is vertical with the m groups fracture set to be measured, shakes the manual setter 7 and drives the screw 4
Rotary motion, the screw 4 of rotation are driven the crack sighting device 3 in fixing device 6 to move up and down by screw-driven and adjust it
Highly, measured by reading the high scale line of the graduated scale 11 corresponding to the laser beam sent described in crack sighting device 3
Obtain the wide L of true gap in first group of i-th of crack crackiAnd its distance h with starting pointi；
(3) the distance h of plane and starting point according to where radius of a ball R and first group of i-th of cracki, obtain first group
The area A of plane where the crack of i-th of cracki=π ri 2, ri 2=R2-hi 2；
(4) according to the true wide L of gapiAnd the area A of plane where the crack of first group of i-th of crackiObtain Vi, Vi=Li×
Ai；
(5) according to the volume V in first group of i-th of crack crackiObtain V1,
(6) second group of crack, the 3rd group of crack ... m groups crack body shared in to-be-measured cell sphere are obtained successively
Product Vj；
(7) according to first group of crack, second group of crack ... m groups crack is shared in to-be-measured cell sphere
Volume VjThe total volume V in each group crack is obtained,
(8) it is V according to the volume of the total volume V in each group crack and to-be-measured cell sphere0Body crack rate K is obtained,
Wherein：
hi-- the distance of plane and reference plane (this organized the crack of the centre of sphere) where crack；
Li-- the gap in i-th crack is wide；
ri-- the radius for the disc that i-th crack is intersected with spherical surface；
Ai-- i-th crack and the area of a circle (floor space of segment) that spherical surface intersects in to-be-measured cell sphere；
Vi-- the volume in to-be-measured cell sphere shared by i-th crack；
Vj-- volume of this group of crack in to-be-measured cell sphere；
V0The volume of-selected unit sphere；
R-- selectes the radius of unit sphere；
K-- rock mass body crack rates.
Further, one end of the pedestal 1 is connected with the bottom of the skeleton 2 by sliding support 5.Measure rock mass body crack
When, it is vertical with the skeleton 2 by the adjusting pedestal 1 of sliding support 5, sliding support 5 is adjusted when not in use by the pedestal 1 and 2 folding of skeleton
It is folded, storage, transport convenient for instrument etc..
Further, the manual setter 7 includes hand-operated wheel 71；The hand-operated wheel 71 drives 4 rotary motion of screw；
The hand-operated wheel 71 is located at the back side of the skeleton 2, opposite with 3 position of crack sighting device.Hand-operated wheel 71 is shaken, it is described
Screw 4 constantly does rotary motion, the 6 continuous threads turn of fixing device being threadedly coupled with screw 4, so that crack sighting device
3 move up and down adjusting height along the screw 4.
Further, the crack sighting device 3 is laser sight, and the laser sight includes switch, camera lens, tune
Save button and power supply.Where the laser beam sent by laser sight at scale, the true gap that can accurately read crack is wide.
Further, the length of the pedestal 1, width, be highly followed successively by 65cm, 14cm, 6cm, be acrylic material system
Into；The pedestal 1 is cuboid, and surface is smooth, with the hand-operated wheel 71, crack sighting device 3 corresponding to position to engrave
Hollow structure, convenient for the folding of skeleton 2 and pedestal 1.
Further, the length of the skeleton 2, width, be highly followed successively by 3cm, 10cm, 60cm, using acrylic material
It is made.
Further, the diameter 16mm of the screw 4, screw 4 stroke 550mm, screw pitch 4mm.
Herein, the involved nouns of locality such as forward and backward, upper and lower are to be located at parts in attached drawing in figure and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
In the case where there is no conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. the instrument of rock mass body crack rate is measured, it is characterized in that, including pedestal, skeleton, crack sighting device, fixing device and hand
Shake device；The pedestal is laterally disposed, and the side of pedestal is equipped with graduated scale；The skeleton is placed longitudinally, one end of the pedestal
It is connected with the bottom of the skeleton；Screw is installed on the middle part longitudinal direction of the skeleton, the manual setter is connected with the screw,
The fixing device is connected with the wire rod thread, and the crack sighting device is installed in the fixing device, the crack
The plane that the graduation mark of the laser beam that sighting device is sent and the graduated scale is formed is prolonged with rock cranny group crack to be measured
Developable surface is mutually parallel；Screw rotary motion under the action of the manual setter, and pass through screw-driven drive it is described solid
The crack sighting device determined on device moves up and down along it.
2. it is according to claim 1 measurement rock mass body crack rate instrument, it is characterized in that, one end of the pedestal with it is described
The bottom of skeleton is connected by sliding support.
3. the instrument of measurement rock mass body crack rate according to claim 1, it is characterized in that, the manual setter includes hand
Wheel；The hand-operated wheel shakes the screw rotary motion；The hand-operated wheel is located at the outside of the skeleton, is aimed at the crack
Setting position is opposite.
4. the instrument of measurement rock mass body crack rate according to claim 3, it is characterized in that, the length of the pedestal, width,
65cm, 14cm, 6cm are highly followed successively by, using acrylic material；The pedestal is cuboid, is aimed at the hand-operated wheel, crack
Position corresponding to device is engraved structure.
5. the instrument of measurement rock mass body crack rate according to claim 1 or 2, it is characterized in that, the length of the skeleton, width
Degree is highly followed successively by 3cm, 10cm, 60cm, using acrylic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721159029.XU CN207379386U (en) | 2017-09-11 | 2017-09-11 | Measure the instrument of rock mass body crack rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721159029.XU CN207379386U (en) | 2017-09-11 | 2017-09-11 | Measure the instrument of rock mass body crack rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207379386U true CN207379386U (en) | 2018-05-18 |
Family
ID=62339780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721159029.XU Expired - Fee Related CN207379386U (en) | 2017-09-11 | 2017-09-11 | Measure the instrument of rock mass body crack rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207379386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436119A (en) * | 2017-09-11 | 2017-12-05 | 中国地质大学（武汉） | Measure the instrument and method of rock mass body crack rate |
-
2017
- 2017-09-11 CN CN201721159029.XU patent/CN207379386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436119A (en) * | 2017-09-11 | 2017-12-05 | 中国地质大学（武汉） | Measure the instrument and method of rock mass body crack rate |
| CN107436119B (en) * | 2017-09-11 | 2023-10-27 | 中国地质大学（武汉） | Instrument and method for measuring rock mass fracture rate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20190911 |