CN105954102A - Loading plate device of large-scale indoor true-triaxial physical simulation testing machine - Google Patents
Loading plate device of large-scale indoor true-triaxial physical simulation testing machine Download PDFInfo
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- CN105954102A CN105954102A CN201610381181.6A CN201610381181A CN105954102A CN 105954102 A CN105954102 A CN 105954102A CN 201610381181 A CN201610381181 A CN 201610381181A CN 105954102 A CN105954102 A CN 105954102A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention discloses a loading plate device of a large-scale indoor true-triaxial physical simulation testing machine. The loading plate device consists of a loading plate, rope channels and a high-strength rope, wherein the loading plate includes the rope channels formed in the loading plate. The high-strength rope passes through the rope channels formed in the loading plate and is hung on a hook of an indoor crane, the loading plate is installed on the outer side of a sample, the high-strength rope is connected with the loading plate, the high-strength rope is connected to the loading plate through the rope channels before the high-strength rope is provided with the loading plate, and the high-strength rope is hung on the hook of the lifting crane. The loading plate device is simple in structure and convenient to use. The stability of the loading plate in the installing process is improved, and potential safety hazards of an indoor test are reduced. The loading plate device is suitable for an indoor true-triaxial physical simulation test and has a certain application prospect of large triaxial tests of field rock body samples or physical simulation test samples in the fields of mechanics, tunnels, bridges, metros and the like.
Description
Technical field
The invention belongs to mechanical properties of rock studying technological domain, load plate design device particularly to a kind of indoor true triaxial large-scale physical simulation experiment machine, it is applicable to mechanics, civil engineering, Geotechnical Engineering, mining engineering etc., is particularly suited for the recovery of laboratory test fracturing fluid.
Background technology
According to mechanics principle, any object is all subject to the power from tri-directions of X, Y, Z, is called maximum principal stress, intermediate principal stress and minimum principal stress respectively, uses symbol σ1、σ2、σ3Represent (in general σ1≥σ2≥σ3).In the rock-soil mechanics environment of deep, Rock And Soil three-dimensional stress is each unequal, for the mechanical failure behavior of rock mass under simulation high-ground stress environment, carries out the large-scale physical simulation experiment of true triaxial in indoor.The size of three principal stresses suffered by rock mass is often different, the large-scale physical test of true triaxial be simulation rock mass by the case of loading, the stress state that internal arbitrary junior unit is born.
Study under the conditions of three-dimensional stress, principal stress and the relation of strain and strength characteristics.Sample is generally regular cube or cuboid.During test, mutually perpendicular principal stress plane (X, Y, Z) each to sample is applied more than principal stress σ respectively1, intermediate principal stress σ2And minor principal stress σ3(the relation of principal stress: σ1≥σ2≥σ3), i.e. sample applies the most independent three principal stress σ on three orthogonal1、σ2、σ3, measure corresponding principal strain ε1、ε2、ε3With change in volume etc..The result that indoor true triaxial test method measures more can reflect real constitutive relation than ordinary triaxial test i.e. axial symmetry triaxial test, the most more complicated.
Indoor lateral (σ used by true triaxial large-scale physical simulation experiment machine2And σ3Direction) load plate is generally 30-60mm, thick steel plate, and its length, width and height are chosen according to loading specimen size size, and length and width cross section should be slightly bigger than sample side.Load plate gross weight is typically at more than 100kg, loop wheel machine mechanical erection and the mode of human assistance is used during installation, but generally only 1 hook of load plate that indoor true triaxial large-scale physical simulation experiment machine is conventional is available for loop wheel machine and uses, installation process is easily played pendulum, certain potential safety hazard is brought to test operation personnel, for this, expect improving a kind of method for designing of load plate, in load plate, i.e. arrange 3-6 rope passage, facilitate loop wheel machine to mention, manually installed, strengthen installation process safety.Improve the stability of load plate installation process, reduce laboratory test potential safety hazard, be the main purpose of patent of the present invention.
Summary of the invention
It is an object of the invention to there are provided the load plate design device of a kind of indoor true triaxial large-scale physical simulation experiment machine, simple in construction, easy to use, improve the stability of load plate installation process, reduce laboratory test potential safety hazard.
In order to realize above-mentioned purpose, the present invention uses techniques below measure:
The load plate of a kind of indoor true triaxial large-scale physical simulation experiment machine designs device, and it is made up of load plate, rope passage, high strength cord, load plate (including the rope passage in load plate) and the high strength cord of installation load plate.It is characterized in that: high strength cord is through the rope passage in load plate, hang on the hook of indoor loop wheel machine, load plate is arranged on outside sample, high strength cord is connected with load plate, high strength cord is connected in load plate by rope passage before installing load plate, hangs on the suspension hook of lifting machine after connecting.The load plate of indoor true triaxial large-scale physical simulation experiment machine is long 680-720mm, wide 580-620mm, the cuboid of thick 48-52mm, select solid, high-strength stainless steel material, the hook passage (as a example by 4 rope passages) of 4 diameter 18-22mm it is symmetrical arranged at the top of lateral load plate, distance edge 48-52mm, the whole thickness of the through load plate of passage, rope channel distance load plate upper side 48-52mm, spacing distance 100-140mm between passage, channel diameter is more than high strength cord diameter.Loop wheel machine extracts the rope of load plate and uses the high strength cord of diameter 13-17mm, and this rope do not deforms under the pressure effect of 10KN, fracture etc. damages phenomenon, by high strength cord through the reserved rope passage of load plate.
The work process of the present invention is as described below, before the indoor large-scale physical simulation experiment of true triaxial, by indoor lifting machine, load plate is arranged on outside sample, high strength cord needs through rope passage, the connection between high strength cord and load plate is fixed with this, high strength cord is connected in load plate by rope passage before installing load plate, hang on the suspension hook of lifting machine after connecting, simultaneously need to ensure, before lifting, during lifting, in installation process, load plate is in vertical poised state all the time.Concrete experimental implementation: be connected to by high strength cord on the rope passage of load plate, loop wheel machine extracts, load plate is arranged on sample lateral surface by human assistance.
The present invention compared with prior art, has the following advantages and effect:
1) this device only need to improve on the basis of load plate at original indoor true triaxial large-scale physical simulation experiment pusher side.
2) processing technique is simple, belongs to the processing of single mechanicalness, is not related to any chemistry, physical unit, it is easy to operation.3) for extract load plate rope can with dress with, connected mode is simple.
4) easy to operate, substantially increase the safety of indoor true triaxial large-scale physical simulation experiment load plate installation and removal process.
5) indoor true triaxial large-scale physical simulation experiment time cost is saved.Using the load plate after improving to install and unloading process saves time about 10min/ time, the once indoor true triaxial large-scale physical simulation experiment process that completes need to mount and dismount load plate 4 times, therefore time-consuming about 40 minutes of single test.
The present invention installs passage by setting up the rope in load plate, strengthens load plate and is extracted integrally-built stability in installation process, is suitable to the indoor large-scale physical simulation experiment of true triaxial.The present invention has certain application prospect at the Large-scale Triaxial Experiments of the field Test in Situ samples such as mechanics, tunnel, bridge, subway or physical modeling's sample.
Accompanying drawing explanation
Fig. 1 is that a kind of indoor true triaxial large-scale physical simulation experiment pusher side is to load plate device schematic diagram；
Fig. 2 a is the front view of a kind of load plate device；
Fig. 2 b is the top view of a kind of load plate device；
Fig. 2 c is the side view of a kind of load plate device.
Wherein: 1-load plate, 1-1-rope passage；2-high strength cord.
Detailed description of the invention
Embodiment 1(is as a example by 4 rope passages):
Below in conjunction with the accompanying drawings the present invention is described in further detail, a kind of indoor true triaxial large-scale physical simulation experiment pusher side is to load plate device, it is made up of load plate 1, rope passage 1-1, high strength cord 2, it is characterized in that: high strength cord 2 passes the rope passage 1-1 in load plate, hang on the hook of indoor loop wheel machine, load plate 1 is arranged on outside sample, high strength cord 2 is connected with load plate 1, high strength cord 2 is connected in load plate 1 by rope passage 1-1 before installing load plate 1, hangs on the suspension hook of lifting machine after connecting.Before the indoor large-scale physical simulation experiment of true triaxial, by indoor lifting machine, load plate 1 is arranged on outside sample, high strength cord 2 needs through rope passage 1-1, the connection between high strength cord 2 and load plate 1 is fixed with this, high strength cord 2 is connected in load plate 1 by rope passage before installing load plate, hanging over after connecting on the suspension hook of lifting machine, simultaneously need to ensure, before lifting, during lifting, in installation process, load plate 1 is in vertical poised state all the time.
The load plate 1 of indoor true triaxial large-scale physical simulation experiment machine be long by 680 or 690 or 700 or 710 or 720mm, wide 580 or 590 or 600 or 610 or 620mm, thickness 48 or 49 or 50 or the cuboid of 51 or 52mm, select solid, high-strength stainless steel material, the hook passage of four diameter 18-22mm it is symmetrical arranged at the top of lateral load plate 1, distance edge 48 or 49 or 50 or 51 or 52mm, the whole thickness of the through load plate of passage 1, rope passage 1-1 distance load plate 1 upper side 48-52mm.This rope do not deforms under the pressure effect of 10KN, fracture etc. damages phenomenon, by high strength cord through the reserved rope passage of load plate.
As shown in Figure 2 a, the rope passage 1-1 in load plate is symmetrically distributed in load plate 1.Spacing distance 100 or 110 or 120 or 130 or 140mm between rope passage 1-1, rope passage 1-1 diameter is more than high strength cord 2 diameter.
As shown in Figure 2 b, the rope passage 1-1 in load plate is symmetrically distributed in load plate 1.
As shown in Figure 2 c, the rope passage 1-1 in load plate is symmetrically distributed in load plate 1.Rope channel diameter 13 or 14 or 15 or 16 or 17mm, rope passage 1-1 diameter is more than high strength cord 2 diameter.This rope do not deforms under the pressure effect of 10KN, fracture etc. damages phenomenon, by high strength cord through the reserved rope passage of load plate.
Claims (4)
1. an indoor true triaxial large-scale physical simulation experiment pusher side is to load plate device, it is made up of load plate (1), rope passage (1-1), high strength cord (2), it is characterized in that: high strength cord (2) is through the rope passage (1-1) in load plate, hang on the hook of indoor loop wheel machine, load plate (1) is arranged on outside sample, high strength cord (2) is connected with load plate (1), high strength cord (2) installation load plate (1) is front to be connected in load plate (1) by rope passage (1-1), hangs on the suspension hook of lifting machine after connection.
A kind of indoor true triaxial large-scale physical simulation experiment pusher side the most according to claim 1 is to load plate device, it is characterized in that: described load plate (1) long 680-720mm, wide 580-620mm, the cuboid of thick 48-52mm, the hook passage of four diameter 18-22mm, rope passage (1-1) distance load plate (1) upper side 48-52mm it is symmetrical arranged at the top, distance edge 48-52mm of lateral load plate (1).
A kind of indoor true triaxial large-scale physical simulation experiment pusher side the most according to claim 1 is to load plate device, it is characterized in that: the described rope passage (1-1) in load plate (1) is symmetrically distributed in distance 100-140mm in load plate (1), between rope passage (1-1) passage.
A kind of indoor true triaxial large-scale physical simulation experiment pusher side the most according to claim 1 is to load plate device, it is characterised in that: described rope passage (1-1) diameter 13-17mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381181.6A CN105954102A (en) | 2016-06-01 | 2016-06-01 | Loading plate device of large-scale indoor true-triaxial physical simulation testing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610381181.6A CN105954102A (en) | 2016-06-01 | 2016-06-01 | Loading plate device of large-scale indoor true-triaxial physical simulation testing machine |
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| CN105954102A true CN105954102A (en) | 2016-09-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435503A (en) * | 2011-11-24 | 2012-05-02 | 长江水利委员会长江科学院 | Large-scale true triaxial experiment testing method and equipment |
| CN103603460A (en) * | 2013-11-25 | 2014-02-26 | 浙江省建设投资集团有限公司 | Embedded prefabricated concrete external wall panel and hoisting method thereof |
| CN204330374U (en) * | 2015-01-09 | 2015-05-13 | 山东科技大学 | A kind of rig for model test of angle adjustable |
| CN105043611A (en) * | 2015-06-16 | 2015-11-11 | 中山大学 | In-situ testing device for lateral expansive force of expansive soil |
| CN205670101U (en) * | 2016-06-01 | 2016-11-02 | 中国科学院武汉岩土力学研究所 | A kind of load plate device of indoor true triaxial large-scale physical simulation experiment machine |
-
2016
- 2016-06-01 CN CN201610381181.6A patent/CN105954102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435503A (en) * | 2011-11-24 | 2012-05-02 | 长江水利委员会长江科学院 | Large-scale true triaxial experiment testing method and equipment |
| CN103603460A (en) * | 2013-11-25 | 2014-02-26 | 浙江省建设投资集团有限公司 | Embedded prefabricated concrete external wall panel and hoisting method thereof |
| CN204330374U (en) * | 2015-01-09 | 2015-05-13 | 山东科技大学 | A kind of rig for model test of angle adjustable |
| CN105043611A (en) * | 2015-06-16 | 2015-11-11 | 中山大学 | In-situ testing device for lateral expansive force of expansive soil |
| CN205670101U (en) * | 2016-06-01 | 2016-11-02 | 中国科学院武汉岩土力学研究所 | A kind of load plate device of indoor true triaxial large-scale physical simulation experiment machine |
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