CN113160684B - Device and method for simulating deformation and damage of tunnel fault fracture zone - Google Patents
Device and method for simulating deformation and damage of tunnel fault fracture zone Download PDFInfo
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- CN113160684B CN113160684B CN202110184150.2A CN202110184150A CN113160684B CN 113160684 B CN113160684 B CN 113160684B CN 202110184150 A CN202110184150 A CN 202110184150A CN 113160684 B CN113160684 B CN 113160684B
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- G09B23/40—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
Abstract
The invention relates to the technical field of physical simulation of deformation and damage of a tunnel fault fracture zone, and discloses a device and a method for simulating deformation and damage of the tunnel fault fracture zone. Including bearing frame, hoop jack, experimental inside groove, ground filled groove, tunnel excavation face, actuator support, actuator, back reaction wall, back jack and tunnel lining model, hoop jack fixed mounting be in on the bearing frame inner wall, experimental inside groove position in inside the bearing frame, the tunnel excavation face is located on the experimental inside groove, the tunnel lining model sets up tunnel excavation face department, the actuator support with the actuator is connected, constitutes and actuates the device, back jack with back reaction wall fixed connection, the hoop jack the back jack with the cooperation of experimental inside groove is right experimental inside groove outer wall is exerted the load. The invention can break through the problem that the traditional simulation device can only perform plane dislocation, and the simulation result is more real and reliable.
Description
Technical Field
The invention relates to the technical field of tunnel fault fracture zone deformation and damage physical simulation, in particular to a simulation test device for realizing fault activation effect by applying loads in multiple directions and simulating tunnel structure deformation and damage when a tunnel passes through a fault fracture zone under the action of train dynamic load and earthquake load and an operation method thereof.
Background
With the rapid development of economy in China, infrastructure construction is also continuously perfected, tunnel engineering is unprecedented in development, and the tunnel engineering is the country with the largest scale, the fastest development speed and the most complex structure in tunnel engineering construction in the world at present. Along with the gradual promotion of infrastructure construction in recent years, the national investment on the field of the traffic infrastructure in the western region is continuously increased; however, most of western China is mountainous, geological conditions are complex, earthquakes are frequent, tunnel construction inevitably needs to pass through fault and high-intensity earthquake areas, and the tunnels often encounter unfavorable geology such as faults, broken zones and the like in construction. Many engineering practices and related researches show that the deformation and damage of tunnel surrounding rocks are generally controlled by weak structural planes such as fault fracture zones, and accidents such as water burst, mud burst and tunnel collapse are particularly easily induced if the deformation and damage are not properly treated, so that great challenges are brought to the design and construction of tunnel engineering. The model test is used as a scientific and effective research means and plays an important role in the field of tunnel engineering.
The model test simulates tunnel deformation characteristics and destruction characteristics during tunnel excavation and operation according to a certain model proportion size. The tunnel model test device in the current stage is basically perfect, but the existing test bench can only realize plane strain three-way loading, and the research of the simulation test device and the method for realizing fault activation, train dynamic load and tunnel structure deformation of a fault fracture zone under the action of earthquake is relatively deficient.
Disclosure of Invention
The invention aims to design a simulation test device which can realize the fault activation effect and can simulate the deformation and the damage of a tunnel structure when the tunnel passes through a fault fracture zone under the action of train dynamic load and earthquake load; meanwhile, an operation method of the test device is also specifically introduced to solve the problem of deformation and damage when the tunnel structure passes through a fault fracture zone under the action of dynamic load of a train and earthquake.
In order to achieve the above object, an aspect of the present invention provides a simulation apparatus for tunnel fault fracture zone deformation damage, including: bearing frame, hoop jack, experimental inside groove, ground filled groove, tunnel excavation face, actuator support, actuator, back reaction wall, back jack and tunnel lining model, wherein, hoop jack fixed mounting be in on the bearing frame inner wall, experimental inside groove position in inside the bearing frame, experimental inside groove inboard does the ground filled groove, the tunnel excavation face is located on the experimental inside groove, tunnel lining model sets up tunnel excavation face department, tunnel lining model runs through preceding, the rear surface of experimental inside groove, actuator support with the actuator is connected, constitutes and actuates the device, actuate the device through stretching into in the tunnel lining model, with the tunnel lining model cooperatees, back jack with back reaction wall fixed connection.
According to the simulation device for tunnel fault broken zone deformation and damage, compared with the existing device, the loading counterforce device formed by combining the bearing frame and the annular jack can simultaneously simulate loads in multiple directions, so that the simulation result is more accurate and has higher reference, the defect that the existing device can only apply the load in one direction can be effectively overcome, and the simulation device has remarkable beneficial effects.
In addition, the simulation device for tunnel fault fracture zone deformation and damage provided by the technical scheme of the invention also has the following technical characteristics:
as a preferable scheme of the present invention, the load-bearing frame and the circumferential jack together form a load reaction device.
In a preferred embodiment of the present invention, the circumferential jack and the back jack are combined to apply a load to the outer wall of the test inner tank.
As a preferable scheme of the present invention, the actuators are installed at the bottom of the actuator support, the number of the actuators is not less than 2, and the actuators are uniformly arranged on the actuator support.
In a preferred embodiment of the present invention, the tunnel lining form has a tubular structure, and the length of the tunnel lining form is equal to the length of the trial inner tank.
As a preferable scheme of the present invention, the inner test tank is composed of an active tank and a passive tank, the active tank is flexibly connected to the passive tank, an active cover is disposed on the top of the active tank, a passive cover is disposed on the top of the passive tank, and the active cover is flexibly connected to the passive cover.
As another preferable scheme of the present invention, the inner test tank comprises the active tank, a middle tank and the passive tank, the active tank is flexibly connected with the middle tank, the other side of the middle tank is flexibly connected with the passive tank, an active cover is arranged on the top of the active tank, a passive cover is arranged on the top of the passive tank, and a middle tank cover is arranged on the top of the middle tank.
As a modified version of the above preferred embodiment of the present invention, the number of the middle grooves is at least 1, and when the number of the middle grooves is more than 1, the adjacent middle grooves are flexibly connected.
Compared with the prior art, the invention has the beneficial effects that:
according to the device of this application, through the loading counterforce device that bearing frame and hoop jack combined together and constitute, compare in current device, can carry out the simulation of the ascending load of a plurality of directions simultaneously, make the simulation result more accurate, the simulation result has more the referential, can effectively overcome the not enough that current device can only one-way apply the load, has apparent beneficial effect.
The annular jack and the back jack are combined to apply load to the active groove, so that the problem that the conventional simulation device can only perform plane dislocation is solved, and three-dimensional space displacement is realized; utilize actuator support and actuator to be connected, form and to dismantle and actuate the device, realize train vibration load and seismic action and cross broken tunnel structure deformation simulation in fault zone down.
The technical scheme of one aspect of the invention provides a use method of a simulation device for deformation and damage of a tunnel fault fracture zone, which comprises the following steps:
s1, acquiring a reference model, and filling the rock-soil filling grooves in the test inner grooves with materials similar to the reference model;
s2, placing the filled test inner groove into the loading counterforce device, applying gradient load to the test inner groove through the annular jack, simulating the actual stress condition of the tunnel structure, and applying load to the outer wall of the test inner groove through the cooperation of the annular jack and the back jack to enable the test inner groove to generate relative displacement to form a fault zone;
s3, tunnel excavation is carried out along the tunnel excavation face, the tunnel excavation face penetrates through the fault zone, and the tunnel lining model is inserted after excavation is finished;
s4, connecting the actuator support with the actuator to form the actuating device, extending the actuating device into the tunnel lining model, and applying dynamic load to the tunnel lining model through the actuating device;
and S5, applying gradient load to the whole test inner groove by using the annular jack to simulate the earthquake state.
Drawings
Fig. 1 is a perspective view of a simulation apparatus for tunnel fault fracture zone deformation destruction according to an embodiment of the present invention;
FIG. 2 is a front view of the main body of the simulation apparatus for tunnel fault fracture zone deformation destruction according to the embodiment of the present invention;
FIG. 3 is a side view of the main body of the simulation apparatus for deformation and destruction of a tunnel fault fracture zone according to the embodiment of the present invention;
FIG. 4 is a schematic space structure diagram of a loading device of a simulation device for tunnel fault fracture zone deformation damage according to an embodiment of the invention;
FIG. 5 is a structural diagram of a back reaction wall of a simulation device for deformation and damage of a tunnel fault fracture zone according to an embodiment of the invention;
FIG. 6 is a schematic diagram of an actuating device of the simulation device for deformation and damage of the tunnel fault fracture zone according to the embodiment of the invention;
FIG. 7 is a schematic structural diagram of a tunnel lining model of a simulation device for deformation and damage of a tunnel fault fracture zone according to an embodiment of the invention;
fig. 8 is a schematic view of a trial inner tank scheme of a simulation device for deformation and damage of a tunnel fault fracture zone according to an embodiment of the invention;
FIG. 9 is a schematic diagram of a second experimental inner tank scheme of the simulation device for deformation and damage of the tunnel fault fracture zone in the embodiment of the invention;
fig. 10 is a schematic diagram of another experimental inner tank scheme of the simulation apparatus for tunnel fault fracture zone deformation failure according to the embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 10 is:
the device comprises a bearing frame 1, a ring-shaped jack 2, an experimental inner groove 3, a rock-soil filling groove 4, a tunnel excavation surface 5, an actuator bracket 6, an actuator 7, a back reaction wall 8, a back jack 9, a tunnel lining model 10, an active groove 11, a passive groove 12, an active cover 13, a passive cover 14, a middle groove 15 and a middle groove cover 16.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The actuator is a key part for implementing active vibration control and is an important link of an active control system. The actuator is also called a vibration exciter and is used for carrying out a dynamic test and is a force output device for the dynamic test.
An apparatus and method for simulating deformation damage of a tunnel fault fracture zone according to some embodiments of the present invention will be described with reference to fig. 1 to 10.
Example one
As shown in fig. 1 to 8, a simulation apparatus for tunnel fault fracture zone deformation damage according to some embodiments of the present invention includes a bearing frame 1 and a circumferential jack 2, the circumferential jack 2 is fixedly installed on an inner wall of the bearing frame 1, the bearing frame 1 and the circumferential jack 2 jointly form a loading counterforce device, a bottom surface of the bearing frame 1 is fixedly installed on the ground, the bearing frame 1 is a frame structure with openings on front and rear surfaces, an inclined surface is provided at an intersection position of a top surface and a side surface of the bearing frame 1, an included angle between the inclined surface of the bearing frame 1 and the inner wall of the side surface is 135 °, an included angle between the inclined surface of the bearing frame 1 and the inner wall of the top surface is 135 °, the structural stability of the bearing frame 1 can be increased by providing the inclined surface at a top of the bearing frame 1, the circumferential jacks 2 are distributed on the inner wall of the top surface, the inner wall of the bottom surface, the inner wall of the side surface, and the inner wall of the inclined surface of the bearing frame 1, the circumferential jacks 2 are distributed on each inner wall surface of the bearing frame 1, a plurality of the circumferential jacks 2 are uniformly distributed in an array; it should be noted that, the number and arrangement of the circumferential jacks 2 are not limited, but may be arranged according to actual needs.
The test inner groove 3 is formed by an active groove 11 and a passive groove 12, the active groove 11 is flexibly connected with the passive groove 12, an active cover 13 is arranged at the top of the active groove 11, the active cover 13 is detachably connected with the active groove 11, a passive cover 14 is arranged at the top of the passive groove 12, the passive cover 14 is detachably connected with the passive groove 12, the active cover 13 is flexibly connected with the passive cover 14, a rock-soil filling groove 4 is arranged at the inner side of a groove body formed by the active groove 11 and the passive groove 12, and the rock-soil filling groove 4 is used for filling rock-soil materials used for simulating a fault zone; the test inner groove 3 is placed inside the bearing frame 1, and when the annular jack 2 does not apply load to the test inner groove 3, the bottom surface of the test inner groove 3 is in contact with the annular jack 2 at the bottom of the bearing frame 1.
The tunnel lining model 10 is used for simulating a tunnel in a test, the tunnel lining model 10 is arranged at a tunnel excavation face 5, after tunnel excavation is completed, the tunnel lining model 10 is inserted into an excavation position, the tunnel lining model 10 penetrates through the front surface and the rear surface of the inner experimental groove 3, the length of the tunnel lining model 10 is equal to that of the inner experimental groove 3, and the structure of the tunnel lining model 10 is of a circular tubular structure.
Load can be exerted to 11 front surfaces of initiative groove through back jack 9, load is exerted to 11 left surface, right flank, top surface, bottom surfaces of initiative groove through hoop jack 2, exerts load to initiative groove 11 through hoop jack 2 and jack 9 dorsad, makes and takes place the dislocation between initiative groove 11 and the passive groove 12, and then realizes fault zone formation process simulation.
The device is moved in the process of simulation train dynamic load, places tunnel lining model 10 in, and the vibration that the device produced of moving is transmitted tunnel lining model 10 and fault zone, and then realizes under the effect of train dynamic load, the analogue test of tunnel structure deformation and destruction.
In the process of earthquake load simulation, gradient load is applied to the whole experiment inner groove 3 through the annular jack 2, and then earthquake load simulation is achieved.
Since the principles and techniques of jacks and actuators are already the prior art, they are directly cited here, and thus, they are not described in detail.
Example two
As shown in fig. 9-10, the present embodiment is different from the first embodiment in that the inner test groove 3 is composed of an active groove 11, a middle groove 15 and a passive groove 12, the active groove 11 is flexibly connected with the middle groove 15, the other side of the middle groove 15 is flexibly connected with the passive groove 12, the top of the active groove 11 is provided with an active cover 13, the active groove 11 is detachably connected with the active cover 13, the top of the passive groove 12 is provided with a passive cover 14, the passive cover 14 is detachably connected with the passive groove 12, the top of the middle groove 15 is provided with a middle groove cover 16, the middle groove cover 16 is detachably connected with the middle groove 15, the inner side of the groove body composed of the active groove 11, the passive groove 12 and the middle groove 15 is a rock-soil filling groove 4, the rock-soil filling groove 4 is used for filling rock-soil materials used for simulating fault zones, the number of the middle grooves 15 is at least 1, when the number of the middle grooves 15 is more than 1, the adjacent middle grooves 15 are flexibly connected, and the test device can simulate the situation when the tunnel is in more than 1 fault zone.
EXAMPLE III
According to some embodiments of the invention, a use method of the simulation device for deformation and damage of the tunnel fault fracture zone is provided, and comprises the following steps:
And 2, placing the test inner groove 3 consisting of the active groove 11 and the passive groove 12 into the bearing frame 1, applying loads to the left side surface, the right side surface, the top surface and the bottom surface of the active groove 11 through the annular jack 2, applying loads to the front surface of the active groove 11 through the back jack 9, applying loads to the active groove 11 through the annular jack 2 and the back jack 9 together, enabling the active groove 11 and the passive groove 12 to be staggered, and further achieving the simulation of the fault zone forming process.
And 3, excavating the tunnel along the tunnel excavation surface 5 and penetrating the fault zone, and after the tunnel excavation is finished, placing the tunnel lining model 10 at the excavation position for simulating the process that the tunnel penetrates the fault zone.
And 4, installing and connecting the actuator support 6 and the actuator 7 to form an actuating device, placing the actuating device into the tunnel lining model 10, and transmitting vibration generated by the actuator 7 to the tunnel lining model 10 and the fault zone so as to realize a simulation test of deformation and destruction of the tunnel structure under the action of dynamic load of the train.
And 5, applying gradient load to the whole experimental inner groove 3 through the annular jack 2, and further realizing a simulation test of deformation and damage of the tunnel structure under the action of an earthquake.
Example four
According to some embodiments of the invention, a use method of the simulation device for tunnel fault fracture zone deformation damage is provided, which comprises the following steps:
And 2, placing the test inner groove 3 consisting of the driving groove 11, the middle groove 15 and the driven groove 12 into the bearing frame 1, applying loads to the left side surface, the right side surface, the top surface and the bottom surface of the driving groove 11 through the annular jack 2, applying loads to the front surface of the driving groove 11 through the back jack 9, applying loads to the driving groove 11 through the annular jack 2 and the back jack 9 together, enabling the driving groove 11, the middle groove 15 and the driven groove 12 to generate dislocation, and further achieving the simulation of the formation process of the fault zone.
And 3, excavating the tunnel along the tunnel excavation surface 5 and penetrating the fault zone, and after the tunnel excavation is finished, placing the tunnel lining model 10 at the excavation position for simulating the process that the tunnel penetrates the fault zone.
And 4, installing and connecting the actuator support 6 and the actuator 7 to form an actuating device, placing the actuating device into the tunnel lining model 10, and transmitting vibration generated by the actuator 7 to the tunnel lining model 10 and the fault zone so as to realize a simulation test of deformation and destruction of the tunnel structure under the action of dynamic load of the train.
And 5, applying gradient load to the whole experimental inner groove 3 through the annular jack 2, and further realizing a simulation test of deformation and damage of the tunnel structure under the action of an earthquake.
The difference between this embodiment and the third embodiment is that in this embodiment, the test inner tank 3 is provided with an intermediate tank 15 between the active tank 11 and the passive tank 12, and the top of the intermediate tank 15 is provided with an intermediate tank cover 16.
In the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance: the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Broken analogue means who takes deformation damage of tunnel fault, its characterized in that includes:
the device comprises a bearing frame (1), a circumferential jack (2), an inner testing groove (3), a rock-soil filling groove (4), a tunnel excavation face (5), an actuator support (6), an actuator (7), a back reaction wall (8), a back jack (9) and a tunnel lining model (10), wherein the circumferential jack (2) is fixedly installed on the inner wall of the bearing frame (1), the inner testing groove (3) is positioned inside the bearing frame (1), the rock-soil filling groove (4) is arranged on the inner side of the inner testing groove (3), the tunnel excavation face (5) is positioned on the inner testing groove (3), the tunnel lining model (10) is arranged at the tunnel excavation face (5), the tunnel lining model (10) penetrates through the front surface and the back surface of the inner testing groove (3), the actuator support (6) is connected with the actuator (7) to form an actuating device, the actuating device extends into the tunnel lining model (10) to be matched with the tunnel lining model (10), and the back jack (9) is fixedly connected with the back reaction wall (8);
bearing frame top surface and the crossing position of side are equipped with the inclined plane, and the hoop jack distributes on bearing frame inclined plane inner wall, and the hoop jack on the inclined plane can provide the power of incline direction.
2. The tunnel fault zone crush simulation apparatus of claim 1, wherein: the bearing frame (1) and the annular jack (2) jointly form a loading counterforce device.
3. The tunnel fault zone crush simulation apparatus of claim 1, wherein: the annular jack (2) and the back jack (9) are combined to apply load to the outer wall of the test inner groove (3).
4. The tunnel fault zone crush simulation apparatus of claim 1, wherein: install actuator (7) actuator support (6) bottom, 2 are no less than in the quantity of actuator (7), actuator (7) are evenly arranged on actuator support (6).
5. The apparatus for simulating deformation and destruction of a tunnel fault fracture zone as claimed in claim 1, wherein: the structure of the tunnel lining model (10) is a tubular structure, and the length of the tunnel lining model (10) is equal to that of the test inner groove (3).
6. The tunnel fault zone crush simulation apparatus of claim 1, wherein: the test inner groove (3) is composed of an active groove (11) and a passive groove (12), the active groove (11) is flexibly connected with the passive groove (12), an active cover (13) is arranged at the top of the active groove (11), a passive cover (14) is arranged at the top of the passive groove (12), and the active cover (13) is flexibly connected with the passive cover (14).
7. The tunnel fault zone crush simulation apparatus of claim 6, wherein: the test inner groove (3) is composed of an active groove (11), a middle groove (15) and a passive groove (12), the active groove (11) is flexibly connected with the middle groove (15), the other side of the middle groove (15) is flexibly connected with the passive groove (12), an active cover (13) is arranged at the top of the active groove (11), a passive cover (14) is arranged at the top of the passive groove (12), and a middle groove cover (16) is arranged at the top of the middle groove (15).
8. The tunnel fault zone crush simulation apparatus of claim 7, wherein: the number of the middle grooves (15) is at least 1, and when the number of the middle grooves (15) is more than 1, the adjacent middle grooves (15) are in flexible connection.
9. A method for simulating deformation failure of a tunnel fault fracture zone, which is applied to the simulation apparatus for deformation failure of a tunnel fault fracture zone according to any one of claims 1 to 8, characterized by comprising the steps of:
s1, obtaining a reference model, and filling the rock-soil filling grooves (4) in the test inner groove (3) with materials similar to the reference model;
s2, the filled test inner groove (3) is placed in a loading counterforce device, gradient load is applied to the test inner groove (3) through the annular jack (2), the actual stress condition of the tunnel structure is simulated, the annular jack (2) and the back jack (9) are matched to apply load to the outer wall of the test inner groove (3), and the test inner groove (3) is enabled to generate relative displacement to form a fault zone;
s3, tunnel excavation is carried out along the tunnel excavation face (5), the tunnel excavation face penetrates through the fault zone, and the tunnel lining model (10) is inserted after excavation is finished;
s4, connecting the actuator support (6) with the actuator (7) to form the actuating device, extending the actuating device into the tunnel lining model (10), and applying dynamic load to the tunnel lining model (10) through the actuating device;
and S5, applying gradient load to the whole test inner groove (3) by using the annular jack (2) to simulate the earthquake state.
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| CN114136793B (en) * | 2021-10-19 | 2024-01-12 | 中国铁路设计集团有限公司 | Experimental method and experimental device for tunnel crossing double faults |
| CN114705386B (en) * | 2022-02-25 | 2024-03-01 | 河海大学 | Quasi-static force anti-seismic test device and test method for long tunnel structure |
| CN114863779B (en) * | 2022-04-06 | 2024-03-15 | 云南省滇中引水工程有限公司 | Diversion tunnel overactive fault zone structure model |
| CN115165282B (en) * | 2022-07-05 | 2023-03-21 | 北京科技大学 | Pseudo-static force reciprocating push test device and method for simulating longitudinal seismic response of tunnel |
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| JP2009236802A (en) * | 2008-03-28 | 2009-10-15 | Railway Technical Res Inst | Three-dimensional tunnel loading simulation device |
| CN101285808B (en) * | 2008-05-29 | 2010-08-04 | 山东大学 | High crustal stress genuine three-dimensional load model trial system |
| CN102235942B (en) * | 2010-04-27 | 2013-12-25 | 同济大学 | Multifunctional model test system for tunnel and underground engineering |
| CN103076128B (en) * | 2013-01-04 | 2015-06-24 | 西南交通大学 | Tunnel three-dimensional stress field simulator |
| CN103257072A (en) * | 2013-04-28 | 2013-08-21 | 中国矿业大学 | Three-dimensional visualization true triaxial simulation test bench |
| CN103792104B (en) * | 2014-01-24 | 2016-10-05 | 中铁隧道集团有限公司 | Tunnels mimic loading experiment platform |
| CN107328898B (en) * | 2017-07-18 | 2023-02-21 | 招商局重庆交通科研设计院有限公司 | Crossing fault tunnel excavation simulation experiment device |
| CN108548712B (en) * | 2018-03-07 | 2019-03-19 | 山东大学 | A kind of simulation different angle tilted stratum physical model test device and method |
| CN108827669B (en) * | 2018-03-12 | 2020-11-27 | 同济大学 | Test system for simulating deformation and damage characteristics of tunnel |
| CN110161212A (en) * | 2019-05-31 | 2019-08-23 | 绍兴文理学院 | A kind of test method and its device for simulating tunnel or roadway excavation |
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