CN203204916U - Test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling - Google Patents
Test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling Download PDFInfo
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- CN203204916U CN203204916U CN 201320077929 CN201320077929U CN203204916U CN 203204916 U CN203204916 U CN 203204916U CN 201320077929 CN201320077929 CN 201320077929 CN 201320077929 U CN201320077929 U CN 201320077929U CN 203204916 U CN203204916 U CN 203204916U
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Abstract
A test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling comprises a model box, wherein a tunnel simulation mechanism and elevating adjusting mechanisms are disposed on the model box. The model box is formed by splicing four side plates and a bottom plate, wherein two opposite side plates are correspondingly provided with through grooves. The tunnel simulation mechanism has a shield tube and a tunneling tube, wherein the shield tube is sleeved on the tunneling tube; at least two groups of elastic supporting members are arranged between the shield tube and the tunneling tube in the direction of the pipe axis. Each through groove is correspondingly provided with a set of the elevating adjusting mechanism. Each set of elevating adjusting mechanism includes an elevating plate which tightly clings to the side plates of the model box in the through groove position, wherein a jacking mechanism or a lifting mechanism is connected with the elevating plate; the elevating plate is provided with a through hole in a manner of corresponding to the shield tube. The tunnel simulation mechanism penetrates through the through holes and the through grooves. The test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling solves problems that a conventional indoor physical model can hardly consider influential effect and influencing rule on stratum displacement exerted by influencing factors such as tunneling depth and tunneling diameter of a tunnel.
Description
Technical field
The utility model belongs to the Tunnel Engineering field in ground and the underground works, dynamically tunnels the indoor model test device that brings out stratum loss and subsidence but be specifically related to a kind of simcity shield tunnel.
Background technology
Metro Tunnel is as an important branch of city underground engineering, and it realizes that for solving urban traffic blocking, trip difficulty the strategy of sustainable development plays crucial effects.The constructing metro tunnel method mainly contains: shield structure subsurface excavation method, mine method, lid dig contrary sequence method, open cut along the practice, are to the less shield structure subsurface excavation method of surrounding enviroment influence and use morely in the urban underground space exploitation.But, the various resistances that shield machine is subjected in the excavation tunneling process all will inevitably produce disturbance to the soil body, cause tunnel perimeter soil body stress relief and stratum deformation, particularly in the soft soil tunnel more so, very easily bring a series of such as pavement of road subside, environmental problems such as structures distortion, cracking such as underground utilities and existing subway tunnel.Therefore be necessary that the development law the when stratum deformation that causes at the shield tunnel excavation advances with displacement mechanism and with the shield structure launches reliably to study, thus the normal use of assurance subway tunnel safe construction, operation and surrounding building.
Excavating the method for bringing out heterotactic research employing about subway tunnel at present mainly contains: experimental formula method, numerical method, field measurement method and indoor physical experiments method.Wherein, test condition can be controlled and change to indoor physical experiments method artificially because of it, can carry out destructive test repeatedly, effect is intuitively clear, short, instant effect of cycle, and the advantage that can replenish, verify theoretical analysis and numerical result and the personnel that are studied extensively use, although this test method is difficult to the stress condition that reaches identical with prototype, but if based on similarity theory, keep model and prototype similar at aspects such as how much, material, just can be applied to prototype to the model test result.During the response of stratum that causes at tunnel excavation is studied at present, indoor physical experiments method commonly used have trapdoor (trap door) test method(s), rigid pipe in conjunction with removable excavation face test method(s), air-compressing, polystyrene in conjunction with organic solvent dissolution method and miniature tunnel piercing machine technology, but, above-mentioned test apparatus and method are difficult to all consider that influence factors such as the tunnel excavation degree of depth, digging diameter influence effect and influence rule heterotactic, and often has only a kind of model boundary size, be subject to the boundary effect influence, make test findings depart from reality.
Summary of the invention
The utility model provides the dynamic driving of a kind of shield tunnel to bring out stratum loss and subsidence test unit, its objective is that will solve existing indoor physical experiments device is difficult to adapt to the problem that influence factors such as the tunnel excavation degree of depth, digging diameter change.
For achieving the above object, the technical solution adopted in the utility model is: a kind of shield tunnel dynamically driving brings out stratum loss and subsidence test unit, comprise model casing, its innovation is: described model casing is provided with tunnels mimic mechanism and lifting regulating mechanism;
Described model casing is the uncovered rectangular box of end face, and this rectangular box is spliced to form by four blocks of side plates and a base plate, and wherein correspondence offers groove on two opposing sideplates, and the length of groove is arranged along the vertical direction of rectangular box side plate;
Described tunnels mimic mechanism has the shield pipe of simulation shield structure and the tunnel pipe of simulation tunnel, the shield pipe is hollow tubular body, the tunnel pipe has the outer wall of simulation tunnel, the shield pipe box is contained on the tunnel pipe, be provided with at least two group elastic supporting member for supporting optical member along tube axial direction between shield pipe and the tunnel pipe, every group of elastic supporting member for supporting optical member is made of three resiliency supported pin that circumferentially arrange along the shield inside pipe wall at least, makes tunnel pipe unsettled location in the shield pipe, leaves the space between the outer wall of the inwall of shield pipe and tunnel pipe; Described resiliency supported pin has elastic arm or spring, and an end of elastic arm or spring is connected with the inwall of shield pipe, and the other end contacts with the outer wall of tunnel pipe;
Corresponding each groove of described lifting regulating mechanism is equipped with a cover, every cover lifting regulating mechanism comprises a lifter plate, this lifter plate is close to the model casing side plate on described groove position, the lifter plate both sides are provided with slideway, slideway relative model case is fixed, and slideway is along the vertical direction setting of model casing, and the left and right sides of lifter plate is positioned on the slideway, there are a lifting body or hoisting gear to be connected with lifter plate, and act on vertical direction; Corresponding shield pipe offers through hole on the described lifter plate, and under confined state, described tunnels mimic mechanism is arranged in through hole and the groove.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described elastic arm comprises swing arm, pulley and elastic component, one end of described swing arm is connected with the shield pipe, the other end is connected with pulley bearing, described pulley is against on the tunnel pipe outer wall, described elastic component one end connects the shield pipe, and the other end connects swing arm, and described elastic component is extension spring or torsion spring.
2, in the such scheme, described tunnel inside pipe wall along the tunnel pipe axially on offer groove, described pulley is positioned at groove, groove slides and arranges relatively.
3, in the such scheme, in four blocks of side plates of described model casing, having a side plate at least is poly (methyl methacrylate) plate, and each face of all the other of model casing all adopts steel plate or/and poly (methyl methacrylate) plate.
4, in the such scheme, described groove is rectangle, and groove is located at the centre position of its place side plate, and the geometric center of the geometric center of described groove and its place side plate is on same vertical curve.
5, in the such scheme, four blocks of side plates of described model casing are respectively front side board, back side panel, left plate and right plate, the bottom of described model casing is provided with two secondary slide rails along left and right directions, be equipped with first slideway on every secondary slide rail, the corresponding first slideway place of described left plate and right plate offers first groove, and this first groove and first slideway are slidingly connected; Fixedly connected by screw between described left plate and front side board and the back side panel, fixedly connected by screw between described right plate and front side board and the back side panel.
6, in the such scheme, described lifting body is lifting jack.
The utility model design concept and beneficial effect are: the utility model is established the resiliency supported pin at the shield inside pipe wall, this resiliency supported pin deformable, therefore, the tunnel pipe of various outer diameter can be set in the inside of shield pipe, make adjustable gaps between shield pipe and the tunnel pipe, the Different Strata loss of bringing out with the simulation shield-tunneling construction; Simultaneously, the utility model combines groove with lifting regulating mechanism, can simulate the stratum loss of tunnel pipe under the different buried depth situation.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment model casing;
Accompanying drawing 2 is the structural representation of the utility model embodiment lifting regulating mechanism;
Accompanying drawing 3 is the structural representation of the utility model embodiment;
Accompanying drawing 4 is the arrangement architecture synoptic diagram of the utility model embodiment resiliency supported pin;
Accompanying drawing 5 is the A place enlarged diagram of accompanying drawing 4.
In the above accompanying drawing: 1, model casing; 2, groove; 3, support; 4, lifter plate; 5, lifting jack; 6, through hole; 7, shield pipe; 8, tunnel pipe; 9, resiliency supported pin; 10, swing arm; 11, pulley; 12, elastic component; 13, slide rail; 14, first slideway; 15, first groove.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shield tunnel dynamically driving brings out stratum loss and subsidence test unit
Shown in accompanying drawing 1 ~ 5, comprise model casing 1, described model casing 1 is provided with tunnels mimic mechanism and lifting regulating mechanism;
Described model casing 1 is the uncovered rectangular box of end face, the dead size of this rectangular box is 2 meters * 1.5 meters * 1.7 meters (length * wide * height), described rectangular box is spliced to form by four blocks of side plates and a base plate, four blocks of side plates are respectively front side board, back side panel, left plate and right plate, described front side board, back side panel, left plate, right plate and base plate are poly (methyl methacrylate) plate, the length of front side board and back side panel is 2 meters, highly be 1.7 meters, thickness is 10 millimeters, and correspondence offers groove 2 on front side board and the back side panel, and the length of this groove 2 is arranged along the short transverse of rectangular box side plate; Described groove 2 is the slit-like opening of rectangle conducting, and it is positioned at the centre position of its place side plate, and the geometric center of the geometric center of described groove 2 and its place side plate is on same vertical curve; The upper edge of groove 2 is 0.36 meter apart from the upper edge of its place side plate, 0.70 meter apart from the upper edge of its place side plate of the lower edge of groove 2, and the width of described groove 2 is 219 millimeters.
Described tunnels mimic mechanism comprises the shield pipe 7 of simulation shield structure and the tunnel pipe 8 of simulation tunnel, described shield pipe 7 is hollow stainless steel tubulose body with tunnel pipe 8, tunnel pipe 8 has the outer wall of simulation tunnel, shield pipe 7 is sleeved on the tunnel pipe 8, be the inside that the external diameter of tunnel pipe 8 is positioned at shield pipe 7 less than internal diameter and the tunnel pipe 8 of shield pipe 7, be provided with at least two group elastic supporting member for supporting optical member along tube axial direction between shield pipe 7 and the tunnel pipe 8, every group of elastic supporting member for supporting optical member comprises at least three resiliency supported pin 9 that circumferentially arrange along shield pipe 7 inwalls, make tunnel pipe 8 unsettled location in shield pipe 7, leave the space between the outer wall of the inwall of shield pipe 7 and tunnel pipe 8; Described resiliency supported pin 9 has elastic arm or spring, one end of elastic arm or spring is connected with the inwall of shield pipe 7, the other end contacts with the outer wall of tunnel pipe 8, described elastic arm specifically can comprise swing arm 10, pulley 11 and elastic component 12, one end and the shield pipe 7 of described swing arm 10 are hinged, the other end is connected with pulley 11 supportings, described pulley 11 is against on tunnel pipe 8 outer walls, support tunnel pipe 8, tunnel pipe 8 is not contacted with shield pipe 7, be convenient to separating of shield pipe 7 and tunnel pipe 8, described elastic component 12 1 ends connect shield pipe 7, the other end connects swing arm 10, and described elastic component 12 specifically can be extension spring or torsion spring; Described tunnel pipe 8 outer walls are offered groove along its tube axial direction, and described pulley 11 is positioned at groove and groove slip setting relatively.
Corresponding each groove 2 of described lifting regulating mechanism is equipped with a cover, every cover lifting regulating mechanism includes lifter plate 4 and support 3, described lifter plate 4 is close to model casing 1 side plate on described groove 2 positions, prevent from after model casing 1 from filling the simulation soil body leakage of the simulation soil body taking place, influence the accuracy of measurement data, described support 3 is provided with slideway, and slideway relative model case 1 is fixing, slideway is along the vertical direction setting of model casing 1, and the left and right sides of lifter plate 4 is positioned on the slideway; Described lifter plate 4 is 1.7 meters for the height of poly (methyl methacrylate) plate and this lifter plate 4, width is 0.3 meter, thickness is 10 millimeters, there are a lifting body or hoisting gear to be connected with lifter plate 4, and act on vertical direction, described lifting body can be specially lifting jack 5, and this lifting jack 5 acts on the bottom of lifter plate 4, lifter plate 4 is vertically risen or reduces; Corresponding shield pipe 7 offers through hole 6 on the described lifter plate 4, and the diameter of described through hole 6 is more than or equal to the external diameter of shield pipe 7, and the diameter of described through hole 6 specifically can be 219 millimeters, 1 meter apart from the lower edge of lifter plate 4 of the minimum point of described through hole 6; Under confined state, described tunnels mimic mechanism is arranged in through hole 6 and the groove 2, and the length of shield pipe 7 and tunnel pipe 8 all is longer than the distance between the relative two through hole 6, and the part that grows at shield pipe 7 arranges jack, make handle, corresponding draw-gear is installed when to be tested.
The bottom of described model casing 1 is provided with two secondary slide rails 13 side by side along fore-and-aft direction, two secondary slide rails 13 all arrange to left and right direction, slide rail 13 is provided with first slideway 14, corresponding first slideway of described left plate and right plate 14 places offer first groove 15, this first groove 15 is slidingly connected with corresponding first slideway 14, be that described left plate and right plate can horizontally slip along first slideway 14, offer the multiple row pilot hole in the left and right directions correspondence on described front side board and the back side panel, pilot hole slides into the location of this position for left plate or right plate, corresponding pilot hole is provided with threaded hole on the joint face of described left plate and front side board and back side panel, passing pilot hole by screw between described left plate and front side board and the back side panel cooperates fixedly connected with threaded hole, corresponding pilot hole is provided with threaded hole on the joint face of described right plate and front side board and back side panel, passing pilot hole by screw between described right plate and front side board and the back side panel cooperates fixedly connected with threaded hole, be provided with plug in the described pilot hole, described plug embeds the pilot hole from the inboard of model casing 1.
The utility model shield pipe 7 only has a kind of, external diameter is 219 millimeters, 5 millimeters of thickness, the external diameter of tunnel pipe 8 can be divided into several, be respectively 120 millimeters, 140 millimeters, 159 millimeters, 180 millimeters, thickness is 5 millimeters, when carrying out shield tunnel dynamically driving bring out stratum loss and subsidence test, the tunnel pipe 8 that with external diameter is 180 millimeters earlier inserts in the shield pipe 7, and in the two through hole 6 that shield pipe 7 is relative with 8 insertions of tunnel pipe, in model casing 1, fill the simulation soil body then, after only extracting shield pipe 7 out, sedimentation can take place in the simulation soil body, observe settling process, and obtain subsidence curve by pick-up unit, extract tunnel pipe 8 out, and the simulation soil body in the model casing 1 dug out, placing shield pipe 7 and external diameter then and be 159 millimeters tunnel pipe 8 measures again, the rest may be inferred, tunnel pipe 8 up to various outer diameter all measures, present embodiment can also be measured the subsidence curve under the various boundary, i.e. mobile left plate and right plate, and the plug in the pilot hole of premeasuring position taken out, left plate and right plate are passed through the screw stationary positioned in pre-position separately respectively, and then insert the tunnel pipe 8 of various outer diameter, and measure, change the position of left plate and right plate, repeat above-mentioned measuring process, all surveyed until all premeasuring positions, drawn multi-group data, and carried out comparative analysis.
Present embodiment is established resiliency supported pin 9 at shield pipe 7 inwalls, these resiliency supported pin 9 deformables, therefore, the tunnel pipe 8 of various outer diameter can be set in the inside of shield pipe 7, make adjustable gaps between shield pipe 7 and the tunnel pipe 8, simultaneously, the utility model combines groove 2 with lifting regulating mechanism, can simulate the Different Strata loss of tunnel pipe 8 under the different buried depth situation, and present embodiment left plate and right plate and slide rail 13 are slidingly connected, left plate and right plate position can change, and this design makes that the experimental provision border is adjustable, thereby have considered the influence of boundary effect.
The utility model embodiment is used for ground settlement and the distortion mensuration directly detaches shield pipe 7 from model casing 1 after; with this reflect shield tunneling and slip casting in time cause limit ground putting-down machine reason; for Tunnel Design and workmen provide theory and technical support, and take corresponding the reinforcing or safeguard measure at the shield tunnel digging process according to this.For example, can be according to test findings anticipation shield-tunneling construction directly perceived coverage, and then carry out shield structure design and construction targetedly and guarantee the normal use of shield structure periphery buildings or structures.
Present embodiment is preferred version of the present utility model, and the utility model can also have following variation:
In above-described embodiment, on front side board and the back side panel respectively vertically correspondence offer groove 2, in actual applications, also can offer groove 2 simultaneously on left plate and the right plate, the ground settlement situation that this device can the analog crossover tunnel.
In above-described embodiment, described front side board, back side panel, left plate, right plate and base plate all adopt poly (methyl methacrylate) plate, in actual applications, in the side plate of groove a side plate to be arranged be poly (methyl methacrylate) plate as long as offer, and is convenient to observe and shooting, in fact, can all not adopt poly (methyl methacrylate) plate, because can obtain testing required subsidence curve by pick-up unit, just directly perceived inadequately, be unfavorable for observing.Simultaneously, because model casing 1 need bear certain soil pressure, it is calculated that, the bottom maximum vertical pressure of model casing 1 is about 33 kPas, the maximum pressure that side direction is born around the model casing 1 is about 17 kPas, and above-mentioned pressure is bigger, if poly (methyl methacrylate) plate can't bear this pressure, left plate, right plate and base plate can be adopted steel plate, maybe adopt steel plate to replace all side plates and base plate.
In above-described embodiment, described elastic arm specifically can comprise swing arm 10, pulley 11 and elastic component 12, and in actual applications, elastic arm also can be a shell fragment.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (8)
1. a shield tunnel dynamically tunnels and brings out stratum loss and subsidence test unit, comprises model casing (1), and it is characterized in that: described model casing (1) is provided with tunnels mimic mechanism and lifting regulating mechanism;
Described model casing (1) is the uncovered rectangular box of end face, this rectangular box is spliced to form by four blocks of side plates and a base plate, wherein correspondence offers groove (2) on two opposing sideplates, and the length of groove (2) is arranged along the vertical direction of rectangular box side plate;
Described tunnels mimic mechanism has the shield pipe (7) of simulation shield structure and the tunnel pipe (8) of simulation tunnel, shield pipe (7) is hollow tubular body, tunnel pipe (8) has the outer wall of simulation tunnel, shield pipe (7) is sleeved on the tunnel pipe (8), be provided with at least two group elastic supporting member for supporting optical member along tube axial direction between shield pipe (7) and the tunnel pipe (8), every group of elastic supporting member for supporting optical member is made of three the resiliency supported pin (9) that circumferentially arrange along shield pipe (7) inwall at least, make tunnel pipe (8) unsettled location in shield pipe (7), leave the space between the outer wall of the inwall of shield pipe (7) and tunnel pipe (8); Described resiliency supported pin (9) has elastic arm or spring, and an end of elastic arm or spring is connected with the inwall of shield pipe (7), and the other end contacts with the outer wall of tunnel pipe (8);
Corresponding each groove of described lifting regulating mechanism (2) is equipped with a cover, every cover lifting regulating mechanism comprises a lifter plate (4), this lifter plate (4) is close to model casing (1) side plate on described groove (2) position, lifter plate (4) both sides are provided with slideway, slideway relative model case (1) is fixing, slideway is along the vertical direction setting of model casing (1), the left and right sides of lifter plate (4) is positioned on the slideway, there are a lifting body or hoisting gear to be connected with lifter plate (4), and act on vertical direction; Described lifter plate (4) is gone up corresponding shield pipe (7) and is offered through hole (6), and under confined state, described tunnels mimic mechanism is arranged in through hole (6) and the groove (2).
2. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, it is characterized in that: described elastic arm comprises swing arm (10), pulley (11) and elastic component (12), one end of described swing arm (10) is connected with shield pipe (7), the other end is connected with pulley (11) supporting, described pulley (11) is against on tunnel pipe (8) outer wall, described elastic component (12) one ends connect shield pipe (7), and the other end connects swing arm (10).
3. shield tunnel according to claim 2 dynamically tunnels and brings out stratum loss and subsidence test unit, and it is characterized in that: described elastic component (12) is extension spring or torsion spring.
4. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, it is characterized in that: described tunnel pipe (8) outer wall along tunnel pipe (8) axially on offer groove, described pulley (11) is positioned at groove, is slidingly connected with groove.
5. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, it is characterized in that: offer in the side plate of groove (2) on the described model casing (1), having a side plate at least is poly (methyl methacrylate) plate, and all the other each faces of model casing (1) all adopt steel plate or/and poly (methyl methacrylate) plate.
6. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, it is characterized in that: described groove (2) is rectangle, groove (2) is located at the centre position of its place side plate, and the geometric center of described groove (2) and the geometric center of its place side plate are on same vertical curve.
7. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, it is characterized in that: four blocks of side plates of described model casing (1) are respectively front side board, back side panel, left plate and right plate, the bottom of described model casing (1) is provided with two secondary slide rails (13) along left and right directions, be equipped with first slideway (14) on every secondary slide rail (13), corresponding first slideway of described left plate and right plate (14) locates to offer first groove (15), and this first groove (15) is slidingly connected with first slideway (14); Fixedly connected by screw between described left plate and front side board and the back side panel, fixedly connected by screw between described right plate and front side board and the back side panel.
8. shield tunnel according to claim 1 dynamically tunnels and brings out stratum loss and subsidence test unit, and it is characterized in that: described lifting body is lifting jack (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077929 CN203204916U (en) | 2013-02-20 | 2013-02-20 | Test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077929 CN203204916U (en) | 2013-02-20 | 2013-02-20 | Test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling |
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| Publication Number | Publication Date |
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| CN203204916U true CN203204916U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320077929 Expired - Lifetime CN203204916U (en) | 2013-02-20 | 2013-02-20 | Test apparatus of ground loss and subsidence induced by shield tunnel dynamic tunneling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117020A (en) * | 2013-02-20 | 2013-05-22 | 苏州科技学院 | Experimental facility for simulating shield tunnel dynamically boring causing ground loss and surface subsidence |
| CN106198931A (en) * | 2016-08-26 | 2016-12-07 | 浙江大学城市学院 | A kind of assay device simulating shield stagewise excavation |
| CN106483023A (en) * | 2016-12-08 | 2017-03-08 | 兰州交通大学 | A kind of true triaxial simulation tunnel experimental provision |
| US10465124B2 (en) | 2016-02-08 | 2019-11-05 | Red Leaf Resources, Inc. | Internal friction control systems for hydrocarbonaceous subsiding bodies |
-
2013
- 2013-02-20 CN CN 201320077929 patent/CN203204916U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117020A (en) * | 2013-02-20 | 2013-05-22 | 苏州科技学院 | Experimental facility for simulating shield tunnel dynamically boring causing ground loss and surface subsidence |
| CN103117020B (en) * | 2013-02-20 | 2014-10-08 | 苏州科技学院 | Experimental facility for simulating shield tunnel dynamically boring causing ground loss and surface subsidence |
| US10465124B2 (en) | 2016-02-08 | 2019-11-05 | Red Leaf Resources, Inc. | Internal friction control systems for hydrocarbonaceous subsiding bodies |
| CN106198931A (en) * | 2016-08-26 | 2016-12-07 | 浙江大学城市学院 | A kind of assay device simulating shield stagewise excavation |
| CN106198931B (en) * | 2016-08-26 | 2018-06-08 | 浙江大学城市学院 | A kind of experimental rig simulated shield segmented and excavated |
| CN106483023A (en) * | 2016-12-08 | 2017-03-08 | 兰州交通大学 | A kind of true triaxial simulation tunnel experimental provision |
| CN106483023B (en) * | 2016-12-08 | 2023-12-05 | 兰州交通大学 | True triaxial simulation tunnel experimental device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130918 Effective date of abandoning: 20141008 |
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| RGAV | Abandon patent right to avoid regrant |