CN106198208B - A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect - Google Patents
A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect Download PDFInfo
- Publication number
- CN106198208B CN106198208B CN201610453136.7A CN201610453136A CN106198208B CN 106198208 B CN106198208 B CN 106198208B CN 201610453136 A CN201610453136 A CN 201610453136A CN 106198208 B CN106198208 B CN 106198208B
- Authority
- CN
- China
- Prior art keywords
- rock
- tunnel
- stratification
- soft
- interbedding
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention provides a kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction of consideration stratification effect, includes the following steps：S1, country rock correlation mechanics parameter is obtained：Using rock routine Experimental Study On Mechanical Properties, according to《Physical-mechanical properties of rock testing regulations》Institute's tunnel surrounding to be simulated is processed into standard specimen, country rock correlation mechanics parameter is obtained by single shaft/triaxial compression test, shearing test；S2, the mechanics parameter obtained to step S1 experiments assign country rock analogue unit, and elasto-plastic Constitutive Model, dp criterion and the contact for selecting ANSYS softwares included carry out sunykatuib analysis to effect.Analogy method provided by the invention, interbedding of soft and hard rocks surrounding rock tunnel can be simulated excavate overall process middle level variation caused by the field of force, displacement field etc. and ought to influence, solves in simulation process nonlinear analysis result not convergence problem, analog result can reflect situations such as whether generating absciss layer after tunnel excavation, simulation is more in line with engineering actual state, and analog result can instruct actual tunnel to construct.
Description
Technical field
The present invention relates to Tunnel Engineering technical fields, and in particular to a kind of interbedding of soft and hard rocks surrounding rock tunnel considering stratification effect
Method for analog construction.
Background technology
ANSYS softwares have embodied powerful function in Geotechnical Engineering, in existing tunnel construction simulation
In method, one is the transmission interactively using spring unit simulation country rock and the power of lining cutting, this method is applied anti-
Power is typically empirically determined, and cannot consider third principal stress.Another kind is to regard entire rock mass as a horizontal sight respectively
To same sex body, the method assumes each native interlayer c ohesion securely and does not generate sliding, and still, the present inventor sends out by research
It is existing, this method can not stratification generates during constructing tunnel before and after excavation simulation effect and variation, thus this and practical feelings
Condition has certain discrepancy, and this method is not suitable for the interbedding of soft and hard rocks country rock that stratification is clearly present.Meanwhile existing simulation stratification effect
Method also has nonlinear analysis result not convergence problem.
Therefore, the Engineering Guidance effect built practical to stratiform surrounding rock tunnel of above-mentioned existing analogy method is limited, using answering
When the method for power release, stress release number, be entirely by virtue of experience to be worth, thus existing tunnel construction simulation method obtains
As a result subjectivity is larger.
Invention content
For existing analogy method can not stratification generates during constructing tunnel before and after excavation simulation effect and variation,
Thus there is certain discrepancy with actual conditions, and this method is not suitable for the interbedding of soft and hard rocks country rock that stratification is clearly present, while existing
Simulate stratification action method also and have nonlinear analysis result not convergence problem the technical issues of, the present invention provides a kind of consideration layer
The interbedding of soft and hard rocks surrounding rock tunnel method for analog construction of reason effect.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：
A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect, includes the following steps：
S1, country rock correlation mechanics parameter is obtained：Using rock routine Experimental Study On Mechanical Properties, according to《Rock physics mechanical property
Matter testing regulations》By tunnel surrounding to be simulated be processed into the cylindrical type standard specimen of diameter 50mm long 100mm, pass through single shaft
Compression test, triaxial compression test, shearing test obtain country rock correlation mechanics parameter, the mechanics parameter include elasticity modulus,
Poisson's ratio, density, cohesive strength and internal friction angle；
S2, the corresponding mechanics parameter obtained to step S1 experiments assign country rock analogue unit, and ANSYS softwares is selected to carry
Elasto-plastic Constitutive Model, dp criterion and its contact carry out sunykatuib analysis to effect, specifically include step：
S21, tunnel excavation model, and grid division are established, and includes just serving as a contrast and two linings in model；
S22, include that linear dimensions including elasticity modulus, Poisson's ratio, density passes through mp orders and carries out to country rock material
Definition uses tb, dp orders, imparting to be tried by step S1 cohesive strength, the internal friction angle parameter needed for country rock nonlinear analysis
Test the rock parameter that analysis obtains；
S23, simulation stratification：It is not conllinear between each formation model of entire rock mass, while without any intersection point, stratification target
Unit selects targe169 (2D) or targe170 (3D), stratification osculating element to select conta171 (2D) or conta174
(3D), object element and osculating element composition contacts pair, and wherein targe units are for simulating compared with hard formation, for target face,
Conta is contact surface for simulating compared with incompetent bed；If when anchor pole or the two or more rock stratum of Tunnel Passing, two need to be arranged
The top and bottom in face domain, one of face domain are assigned to different country rock material properties, another face domain only assigns cell attribute and do not assign material
Expect attribute, and assigns the cell attribute and material properties of contact pair in interlayer wire；
S24, stratification parameter setting：Give stratification setting specific mechanics parameter, including cohesive strength, internal friction angle, normal direction are rigid
Degree and shearing rigidity；
The mutual sliding and infiltration of S25, to different lithology after tunnel excavation interlayer carry out processing analysis, and rationally setting connects
External normal direction is touched, there are tunnel excavation processes under the conditions of stratification for simulation country rock；
S26, simulated ground stress：The boundary of horizontal direction is constrained so that displacement is zero in the horizontal direction on boundary；It is right
In vertical direction, bottom displacement is equally limited, and is also zero；Top is that scope of freedom displacement is unrestricted, applies weight at top
Power load simulates the dead weight of overlying rock；Meanwhile anchor pole and lining element should be killed in the process, ensure stress of primary rock lower bolt
And lining cutting is without effect；
S27, excavation simulation to first lining：After simulated ground stress, is killed using ekill orders and excavate rock mass materials unit, into
And simulation of excavation process, and using ealive orders activation anchor pole and lining material unit, it is made to play a role, simulate initial stage branch
Shield process.
Compared with prior art, the interbedding of soft and hard rocks surrounding rock tunnel construction simulation side provided by the invention for considering stratification effect
Method embodies the simulation of stratification using contact analysis for nearly horizontal interbedding of soft and hard rocks surrounding rock tunnel, that is, uses CONTA and TARGE to contact
The contact interface of soft or hard rock stratum is simulated to unit；After contacting to simulation, the presence of stratification, which changes stratum displacement field, produces
Given birth to certain influence, can simulate interbedding of soft and hard rocks surrounding rock tunnel excavate overall process middle level ought to the field of force, displacement field etc. produced
Raw variation and influence solves in simulation process nonlinear analysis result not convergence problem so that displacement field variation relatively uses
Big when existing tunnel approach, analog result can reflect situations such as whether generating absciss layer after tunnel excavation, and analogy method more accords with
Engineering actual state is closed, analog result can instruct actual tunnel to construct.
Further, tunnel excavation model is established in step S21, and further includes during grid division：In entity mould
In type, make the smooth ratio of wedge angle using the chamfering in line or face, or in the thinner grid of the region of curvature suddenly change use.
Further, the external normal direction of rationally setting contact specifically includes in step s 25：For 2-D is contacted, when
When shifting to second node from first node along score, the osculating element of deformable body must be positioned at the right of target face；
To 3-D is contacted, and target triangular element number should make the exterior normal direction of rigid face be directed toward contact surface, and exterior normal passes through the right side
Hand principle defines.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, below into
One step illustrates the present invention.
The interbedding of soft and hard rocks surrounding rock tunnel method for analog construction provided by the invention for considering stratification effect, depending on interbedding of soft and hard rocks country rock
Stratification is clearly present and is significantly affected to excavating to have during constructing tunnel, and using nonlinear contact analysis, simulation stratification is bright
The dynamic change of country rock and its stratification in the case of aobvious existing horizontal layered rock constructing tunnel, and then reach the entire tunnel of simulation
The purpose that stratification has an impact tunnel in road digging process.The method separates each rock stratum, and is connect in interface layer setting
It touches to during, ensures that each contact interface is not conllinear, the line through rock stratum ensures the place's of interrupting not concurrent, solution into Break Row
Simple condition of having determined Imitating stratification non-linear hour result not convergence problem.
When anchor pole or Tunnel Passing two are even more than rock stratum, bolt anchorage area or tunnel will be travelling through different lithology rock
Layer, thus the contact at the bolt anchorage area or tunnel portal for passing through two rock stratum to setting deal with improperly when, at this still
It will appear nonlinear analysis result not convergence problem.For this problem, the present invention is also improved, and is located at bolt anchorage area
For in two rock stratum, the mode in setting two faces domain is taken, one is individually to be established accordingly in upper and lower two rock stratum respectively
Face, while assigning the face domain of cell attribute and corresponding country rock material properties；The other is by bolt anchorage district's groups at, only assign single
Face domain of the meta-attribute without assigning material properties, is finally assigned to contact pair in the interlayer wire in the face of rock stratum up and down for having assigned material properties
Required cell attribute and its material properties, therefore solve nonlinear analysis result not convergence problem in the presence of simulation stratification,
Finally obtain this method, it is described in detail below.
A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect, includes the following steps：
S1, country rock correlation mechanics parameter is obtained：Using rock routine Experimental Study On Mechanical Properties, according to《Rock physics mechanical property
Matter testing regulations》By tunnel surrounding to be simulated be processed into the cylindrical type standard specimen of diameter 50mm long 100mm, pass through single shaft
Compression test, triaxial compression test, shearing test obtain country rock correlation mechanics parameter, the mechanics parameter include elasticity modulus,
Poisson's ratio, density, cohesive strength and internal friction angle；
S2, the corresponding mechanics parameter obtained to step S1 experiments assign country rock analogue unit, and ANSYS softwares is selected to carry
Elasto-plastic Constitutive Model, dp criterion and its contact carry out sunykatuib analysis to effect because various compression tests in step S1 and
Shearing test is only that of obtaining corresponding curve, and needs to obtain from curve (being referred to as stress-strain diagram in geotechnical engineering)
To numerical value, then the processing and analysis that carry out data are needed, step is specifically included：
S21, tunnel excavation model, and grid division are established, and includes just serving as a contrast and two linings in model；
S22, include that linear dimensions including elasticity modulus, Poisson's ratio, density passes through mp orders and carries out to country rock material
Definition uses tb, dp orders, imparting to be tried by step S1 cohesive strength, the internal friction angle parameter needed for country rock nonlinear analysis
Test the rock parameter that analysis obtains；Wherein, the tb, dp order are suitable for activation nonlinear material table and define；
S23, simulation stratification：It is not conllinear between each formation model of entire rock mass, while without any intersection point, stratification target
Unit selects targe169 (2D) or targe170 (3D), stratification osculating element to select conta171 (2D) or conta174
(3D), object element and osculating element composition contacts pair, and wherein targe units are for simulating compared with hard formation, for target face,
Conta is contact surface for simulating compared with incompetent bed；If when anchor pole or the two or more rock stratum of Tunnel Passing, two need to be arranged
The top and bottom in face domain, one of face domain are assigned to different country rock material properties, another face domain only assigns cell attribute and do not assign material
Expect attribute, and assigns the cell attribute and material properties of contact pair in interlayer wire；
S24, stratification parameter setting：Give stratification setting specific mechanics parameter, including cohesive strength, internal friction angle, normal direction are rigid
Degree and shearing rigidity；
The mutual sliding and infiltration of S25, to different lithology after tunnel excavation interlayer carry out processing analysis, and rationally setting connects
External normal direction is touched, there are tunnel excavation processes under the conditions of stratification for simulation country rock；Because model is needed according to actual stratum
Distribution situation is analyzed, which place is the interface of sandstone and mud stone, and how the line at the interface goes to interrupt；
S26, simulated ground stress：The boundary of horizontal direction is constrained so that displacement is zero in the horizontal direction on boundary；It is right
In vertical direction, bottom displacement is equally limited, and is also zero；Top is that scope of freedom displacement is unrestricted, applies weight at top
Power load simulates the dead weight of overlying rock；Meanwhile anchor pole and lining element should be killed in the process, ensure stress of primary rock lower bolt
And lining cutting is without effect；It is the supporting artificially added up in the later stage because in the initial state, not having anchor pole and lining cutting in stratum,
Therefore start that its effect need to be cancelled, the supporting stage is carried out after excavating again into line activating；
S27, excavation simulation to first lining：After simulated ground stress, is killed using ekill orders and excavate rock mass materials unit, into
And simulation of excavation process, and using ealive orders activation anchor pole and lining material unit, it is made to play a role, simulate initial stage branch
Shield process.
Compared with prior art, the interbedding of soft and hard rocks surrounding rock tunnel construction simulation side provided by the invention for considering stratification effect
Method embodies the simulation of stratification using contact analysis for nearly horizontal interbedding of soft and hard rocks surrounding rock tunnel, that is, uses CONTA and TARGE to contact
The contact interface of soft or hard rock stratum is simulated to unit；After contacting to simulation, the presence of stratification, which changes stratum displacement field, produces
Given birth to certain influence, can simulate interbedding of soft and hard rocks surrounding rock tunnel excavate overall process middle level ought to the field of force, displacement field etc. produced
Raw variation and influence solves in simulation process nonlinear analysis result not convergence problem so that displacement field variation relatively uses
Big when existing tunnel approach, analog result can reflect situations such as whether generating absciss layer after tunnel excavation, and analogy method more accords with
Engineering actual state is closed, analog result can instruct actual tunnel to construct.
As specific embodiment, the region that a target face may be broken by two or more faces forms, and should use up at this time can
Energy ground keeps contact area part more rigid than (there are one different real constants number for each target face) by defining multiple target faces
In target face by discrete energy refer to state out the shape of target face enough, excessively thick grid is discrete may to lead to convergence problem.As
A kind of embodiment establishes tunnel excavation model in step S21, and during grid division, if there are one real for rigid face
Salient angle, be difficult to be restrained when solving big sliding problem as a result, in order to avoid these modeling problems, on physical model,
It should make the smooth ratio of wedge angle using the chamfering in line or face, or in the thinner grid of the region of curvature suddenly change use.Pay attention to：
Minute surface non-symmetric technique (ARSYSM, LSYMM) cannot be used to map circle, cylinder, circular cone or spherical surface to the another side of symmetrical plane,
Because the setting of each real constant cannot be assigned to multiple basic prototype sections simultaneously.
As specific embodiment, in step s 25, reasonable setting contacts external normal direction, and (i.e. test-target face connects
Touch direction) it specifically includes：Target face node number sequence be important because it define contact it is main to for 2-D contact,
When shifting to second node from first node along score, the osculating element of deformable body must be positioned at the right side of target face
Side；To 3-D is contacted, and target triangular element number should make the exterior normal direction of rigid face be directed toward contact surface, and exterior normal passes through
Right hand principle defines.
The direction for checking osculating element exterior normal, when program is made whether the inspection of contact, the exterior normal side of contact surface
To being important, to 3-D units are come the exterior normal direction of determining means by node code program number with the right-hand rule, contact surface it is outer
Normal direction should be directed toward target face, otherwise, when starting analysis and calculating, program may think that the excessive permeation in face and very
Difficulty finds initial solution.In the case, program can generally stop executing immediately, at this time can with inspection unit exterior normal direction whether
Correctly.
Order：/ PSYMS, ESYS, 1
GUI：Utility menu>plotctrls>symbols
When finding the exterior normal poor direction of unit, it is necessary to change it by overturning the node number of incorrect unit
.
Order：ESURF, REVE
GUI：main menu>preprocossor>Create>Elements on free surf
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (3)
1. a kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect, which is characterized in that include the following steps：
S1, country rock correlation mechanics parameter is obtained：Using rock routine Experimental Study On Mechanical Properties, according to《Physical-mechanical properties of rock tries
Test regulation》By surrounding rock tunnel to be simulated be processed into the cylindrical type standard specimen of diameter 50mm long 100mm, pass through uniaxial compression
Experiment, triaxial compression test, shearing test obtain country rock correlation mechanics parameter, and the mechanics parameter includes elasticity modulus, Poisson
Than, density, cohesive strength and internal friction angle；
S2, the corresponding mechanics parameter obtained to step S1 experiments assign country rock analogue unit, select the bullet modeling that ANSYS softwares are included
Property constitutive model, dp criterion and its contact to effect carry out sunykatuib analysis, specifically include step：
S21, tunnel excavation model, and grid division are established, and includes just serving as a contrast and two linings in model；
S22, include that linear dimensions including elasticity modulus, Poisson's ratio, density is defined by mp orders to country rock material,
Tb, dp orders is used to assign and pass through step S1 analysis of experiments cohesive strength, the internal friction angle parameter needed for country rock nonlinear analysis
Obtained rock parameter；
S23, simulation stratification：It is not conllinear between each formation model of entire rock mass, while without any intersection point, stratification object element
Select targe1692D or targe1703D, stratification osculating element select conta1712D or conta1743D, object element with
Osculating element composition contact pair, wherein targe units are target face, conta is for simulating compared with soft rock for simulating compared with hard formation
Layer is contact surface；If when anchor pole or the two or more rock stratum of Tunnel Passing, two faces domain need to be set, one of face domain
Top and bottom are assigned to different country rock material properties, another face domain only assigns cell attribute and do not assign material properties, and in interlayer wire
Assign the cell attribute and material properties of contact pair；
S24, stratification parameter setting：Give stratification that specific mechanics parameter is set, including cohesive strength, internal friction angle, normal stiffness and
Shearing rigidity；
The mutual sliding and infiltration of S25, to different lithology after tunnel excavation interlayer carry out processing analysis, rationally setting contact pair
Exterior normal direction, there are tunnel excavation processes under the conditions of stratification for simulation country rock；
S26, simulated ground stress：The boundary of horizontal direction is constrained so that displacement is zero in the horizontal direction on boundary；For perpendicular
Histogram is to bottom displacement is equally limited, and is also zero；Top is that scope of freedom displacement is unrestricted, applies gravity lotus at top
It carries, simulates the dead weight of overlying rock；Meanwhile anchor pole and lining element should be killed in the process, ensure stress of primary rock lower bolt and lining
It builds without effect；
S27, excavation simulation to first lining：After simulated ground stress, is killed using ekill orders and excavate rock mass materials unit, Jin Ermo
Quasi- digging process, and using ealive orders activation anchor pole and lining element, it is made to play a role, simulate preliminary bracing process.
2. the interbedding of soft and hard rocks surrounding rock tunnel method for analog construction according to claim 1 for considering stratification effect, feature exist
In establishing tunnel excavation model in step S21, and further include during grid division：On physical model, line or face are used
Chamfering use thinner grid to make the smooth ratio of wedge angle, or in the region of curvature suddenly change.
3. the interbedding of soft and hard rocks surrounding rock tunnel method for analog construction according to claim 1 for considering stratification effect, feature exist
In rationally setting in step s 25 contacts external normal direction and specifically includes：For 2-D is contacted, when along score from the
When one node shifts to second node, the osculating element of deformable body must be positioned at the right of target face；To 3-D is contacted, target
Triangular element number should make the exterior normal direction of rigid face be directed toward contact surface, and exterior normal is defined by right hand principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453136.7A CN106198208B (en) | 2016-06-21 | 2016-06-21 | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610453136.7A CN106198208B (en) | 2016-06-21 | 2016-06-21 | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106198208A CN106198208A (en) | 2016-12-07 |
| CN106198208B true CN106198208B (en) | 2018-09-25 |
Family
ID=57461715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610453136.7A Active CN106198208B (en) | 2016-06-21 | 2016-06-21 | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106198208B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509746A (en) * | 2018-04-16 | 2018-09-07 | 辽宁工程技术大学 | A kind of Exploring Loose Rock Country in Tunnels method of determining range |
| CN109214064B (en) * | 2018-08-13 | 2022-09-23 | 长安大学 | Method for calculating critical excavation span of horizontal layered surrounding rock tunnel of simply supported beam structure |
| CN109190190A (en) * | 2018-08-13 | 2019-01-11 | 中国铁建大桥工程局集团有限公司 | The numerical analysis method that twin side heading method is constructed to surrouding rock stress and Influence of Displacement |
| CN109359316B (en) * | 2018-08-13 | 2022-09-23 | 长安大学 | Calculation method for cohesive force between horizontal layered surrounding rock layers of simply supported beam structure |
| CN109343111B (en) * | 2018-09-30 | 2021-09-07 | 中国科学院武汉岩土力学研究所 | Long-distance tunnel rock burst microseismic monitoring method for TBM (tunnel boring machine) under soft-hard interbed geological condition |
| CN110108564A (en) * | 2019-06-03 | 2019-08-09 | 重庆交通大学 | High-ground stress goaf tunnel model test method is worn under one kind |
| CN111175150B (en) * | 2020-02-22 | 2023-03-24 | 中铁十九局集团轨道交通工程有限公司 | Test method for measuring compression shearing performance of filling material behind tunnel lining wall |
| CN111475882A (en) * | 2020-04-08 | 2020-07-31 | 中国人民解放军火箭军研究院核技术研究所 | ABAQUS-based rock mass tunnel concrete structure seismic response numerical simulation analysis method |
| CN114509344B (en) * | 2020-11-16 | 2024-03-01 | 中国石油天然气集团有限公司 | Parameter determination method and device for underground water seal petroleum cave depot sealing plug |
| CN113255175A (en) * | 2021-02-25 | 2021-08-13 | 中铁十九局集团华东工程有限公司 | Layered soft rock blasting numerical simulation method |
| CN113536442A (en) * | 2021-07-30 | 2021-10-22 | 新疆建筑科学研究院（有限责任公司） | Simulation method, system and processing terminal for simulating interbedded rock numerical model |
| CN117763914B (en) * | 2023-12-27 | 2024-06-21 | 河海大学 | Numerical analysis method, terminal and medium for stress field and earthquake dynamic response of near-fault tunnel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128035A (en) * | 2011-04-29 | 2011-07-20 | 重庆大学 | Construction method of bilateral biased small-clear distance tunnel |
| CN104615908A (en) * | 2015-03-11 | 2015-05-13 | 重庆大学 | Method for determining displacement release coefficient of surrounding rock by considering spatial effect |
| CN105069269A (en) * | 2015-09-18 | 2015-11-18 | 重庆大学 | Full-process simulation method for tunnel excavation |
-
2016
- 2016-06-21 CN CN201610453136.7A patent/CN106198208B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128035A (en) * | 2011-04-29 | 2011-07-20 | 重庆大学 | Construction method of bilateral biased small-clear distance tunnel |
| CN104615908A (en) * | 2015-03-11 | 2015-05-13 | 重庆大学 | Method for determining displacement release coefficient of surrounding rock by considering spatial effect |
| CN105069269A (en) * | 2015-09-18 | 2015-11-18 | 重庆大学 | Full-process simulation method for tunnel excavation |
Non-Patent Citations (1)
| Title |
|---|
| 加卸载围压条件下岩石峰后力学特性试验研究;李清淼;《万方学位论文》;20151229;第1页-85页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106198208A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106198208B (en) | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering stratification effect | |
| Pan et al. | The influence of the intermediate principal stress on rock failure behaviour: a numerical study | |
| Li et al. | A numerical investigation of the hydraulic fracturing behaviour of conglomerate in Glutenite formation | |
| Jiao et al. | An improved three-dimensional spherical DDA model for simulating rock failure | |
| CN108468538A (en) | A kind of shale hydraulic fracture extension prediction technique | |
| Ranjbarnia et al. | Three-dimensional finite difference analysis of shallow sprayed concrete tunnels crossing a reverse fault or a normal fault: A parametric study | |
| CN106372297B (en) | Method for determining safe vertical distance between shield and karst cave in sandy soil karst stratum | |
| Chen et al. | Numerical study on spalling failure of rock surrounding deep buried tunnel based on DEM | |
| CN108595878A (en) | A kind of slope instability mechanism determination method | |
| Zhang et al. | Peridynamic simulation of crack propagation of non-homogeneous brittle rock-like materials | |
| Tunsakul et al. | Analysis of fracture propagation in a rock mass surrounding a tunnel under high internal pressure by the element-free Galerkin method | |
| Gong et al. | Slope-slide simulation with discontinuous deformation and displacement analysis | |
| Wang et al. | Simulated crack and slip plane propagation in soil slopes with embedded discontinuities using XFEM | |
| Sarhosis et al. | Three dimensional modelling of ancient colonnade structural systems subjected to harmonic and seismic loading | |
| Wang et al. | Mechanical parameter inversion in sandstone diversion tunnel and stability analysis during operation period | |
| CN106372295B (en) | Method for determining safe horizontal distance between shield and karst cave in sandy karst stratum | |
| Byrne et al. | Seismic liquefaction: centrifuge and numerical modeling | |
| Yin et al. | Spudcan penetration simulation using the coupled Eulerian-Lagrangian method with thermo-mechanical coupled analysis | |
| Khosravi et al. | Presentation of critical failure surface of slopes based on the finite element technique | |
| Zhao et al. | Influence of inclination angles and confining pressures on mechanical behavior of rock materials containing a preexisting crack | |
| Tang et al. | The DDD method based on combination of RFPA and DDA | |
| Olivito et al. | A numerical-geometrical methodology to represent out of-plane mechanisms of unreinforced masonry structures by using pushover analysis | |
| Chen et al. | Step-path failure mechanism and stability analysis of water-bearing rock slopes based on particle flow simulation | |
| Al-Heib | Distinct element method applied on old masonry structures | |
| Kou et al. | Dynamic simulation and failure analysis of intermittently jointed rock cells and slopes based on a novel spring-based smoothed particle hydrodynamics method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |