CN214952197U - Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability - Google Patents
Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability Download PDFInfo
- Publication number
- CN214952197U CN214952197U CN202120170065.6U CN202120170065U CN214952197U CN 214952197 U CN214952197 U CN 214952197U CN 202120170065 U CN202120170065 U CN 202120170065U CN 214952197 U CN214952197 U CN 214952197U
- Authority
- CN
- China
- Prior art keywords
- shield
- model
- reaction plate
- hydraulic cylinder
- angle adjusting
- 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
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A ground-in-out shield model test reaction frame device with continuous propulsion capability is characterized in that an equipment foundation is a ground or concrete foundation poured with a shield model box into a whole; the supporting bracket is fixedly connected with the equipment foundation; one end of the angle adjusting hydraulic oil cylinder is connected with the equipment foundation through a tail rotating shaft of the angle adjusting hydraulic oil cylinder, and the other end of the angle adjusting hydraulic oil cylinder is connected with the model shield tunneling machine track through a head rotating shaft of the angle adjusting hydraulic oil cylinder; the model shield machine track is connected with the support bracket, and the shield reaction plate slide rail is fixedly connected with the model shield machine track; the shield reaction plate is connected with the shield reaction plate slide rail through a clamping groove and is fixedly connected with the reaction plate hydraulic oil cylinder; the baffle is fixedly connected with the shield reaction plate; the fixed base of the hydraulic oil cylinder of the counterforce plate is fixedly connected with the model shield machine track; the model shield machine is placed in a groove of the model shield machine track and is tightly attached to the groove. The utility model discloses angle modulation range is big, the accuracy is high, has promoted the compatibility to the shield structure machine greatly.
Description
Technical Field
The utility model belongs to the technical field of the shield constructs the experiment, a ground goes out income formula shield and constructs experimental reaction frame device of model with propulsion ability in succession is related to, is applicable to ground and goes out income formula shield and constructs the model test.
Background
The ground access type shield is a novel shield construction method, compared with the traditional shield construction method, the ground access type shield does not need to excavate a shield initial well and a shield receiving well, avoids traffic diversion and building mobility required in the traditional shield construction, avoids a large amount of engineering risks, and greatly improves the subway shield construction efficiency in dense urban areas. The shield tunnel is used as an underground structure, and the safety of the shield tunnel in the construction period and the operation period is very important for a city, and needs to pay close attention of city builders. The model test is used as an intuitive and reliable test method, is widely used for feasibility research of shield construction, and can guide the design of shield parameters and construction organizations. The existing shield test equipment at the present stage is generally used for traditional shield model tests of underground originating and underground receiving, has no shield originating inclination angle adjusting function, and cannot be used for ground access type shield originating model tests. In addition, the existing shield model test reaction frame device can not actively provide thrust for the shield machine, the jack stroke (step length) of the applicable shield machine is single, and the requirement for simulating multiple propulsion step lengths can not be met.
Disclosure of Invention
In order to overcome the shortcoming and not enough of current shield structure model test reaction frame device of starting, realize that accurate ground goes out income formula shield structure model test, fill the blank that the income formula shield structure model test device goes out on ground, the utility model provides a ground goes out income formula shield structure model test reaction frame device with continuous propulsive ability, the utility model discloses not only can be applied to the ground that the angle of arbitrary starting goes out income formula shield structure model test of starting, angle modulation range is big, the accuracy is high, can initiatively provide thrust for the shield structure machine in addition, has promoted the compatibility to the model shield structure machine greatly.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a ground goes out income formula shield and constructs experimental reaction frame device of model with continuous propulsion ability, the device includes equipment foundation, fixing bolt, support bracket, shield constructs quick-witted track pivot, angle modulation hydraulic cylinder afterbody pivot, angle modulation hydraulic cylinder head pivot, model shield and constructs quick-witted track, shield and constructs reaction plate slide rail, shield and constructs reaction plate, baffle, reaction plate hydraulic cylinder unable adjustment base, model shield and construct machine, shield and construct model case and the soil body.
The equipment foundation is a concrete foundation which is poured into a whole with the ground or the shield model box; the supporting bracket is fixedly connected with the equipment foundation; one end of the angle adjusting hydraulic cylinder is connected with the equipment foundation through an angle adjusting hydraulic cylinder tail rotating shaft, and the other end of the angle adjusting hydraulic cylinder is connected with the model shield tunneling machine track through an angle adjusting hydraulic cylinder head rotating shaft, so that the angle adjusting hydraulic cylinder tail rotating shaft and the angle adjusting hydraulic cylinder head rotating shaft can rotate by taking the angle adjusting hydraulic cylinder tail rotating shaft and the angle adjusting hydraulic cylinder head rotating shaft as shafts; the model shield machine track is connected with the support bracket through a shield machine track rotating shaft and can rotate by taking the shield machine track rotating shaft as a shaft; the shield reaction plate slide rail is fixedly connected with a model shield machine track; the shield reaction plate is connected with the shield reaction plate slide rail through a clamping groove, is fixedly connected with the reaction plate hydraulic cylinder, and can be pushed by the reaction plate hydraulic cylinder to slide along the shield reaction plate slide rail; the baffle is fixedly connected with the shield reaction plate; the reaction plate hydraulic oil cylinder is fixedly connected with the reaction plate hydraulic oil cylinder fixing base; the fixed base of the hydraulic oil cylinder of the counterforce plate is fixedly connected with the model shield machine track; the model shield machine is placed in a groove of the model shield machine track and is tightly attached to the groove.
Furthermore, the device also comprises an angle indicator, an angle indicating pointer and scale marks; the angle indicator is connected with the supporting bracket through an adhesive; the angle indicating pointer is connected with the model shield tunneling machine track through an adhesive and penetrates through the angle indicator, so that the angle indicating pointer can normally point to the scale mark; the scale lines are printed on the angle indicator.
Furthermore, the supporting bracket is connected with the equipment foundation through a fixing bolt; the shield reaction plate slide rail is welded with the model shield machine track; the shield is characterized in that the shield reaction plate is connected with the reaction plate hydraulic cylinder in a welding mode, the baffle is connected with the shield reaction plate in a welding mode, and the reaction plate hydraulic cylinder fixing base is connected with the model shield machine track in a welding mode.
The beneficial effects of the utility model are that: (1) the shield launching angle can be accurately adjusted. The device is provided with an angle adjusting hydraulic oil cylinder and related connecting pieces, the connecting modes are all fixed hinge supports, stepless accurate adjustment of the ground access type shield starting angle is achieved, the adjustment is completed by stretching of the angle adjusting hydraulic oil cylinder, and the shield starting angle is indicated by an angle indicator in real time. (2) The reaction system is multifunctional. The device is provided with the independently controlled reaction plate hydraulic oil cylinder at the tail part of the reaction plate, so that the device can not only freely adjust the position of the reaction plate, realize the circular construction of propulsion-jack retraction-re-propulsion in the traditional shield construction, but also continuously provide thrust for the model shield machine, and simplify the working requirements of the model shield machine. (3) The device is simple and easy to deploy in a test, the device is connected by the fixed hinge support, only the reaction plate hydraulic cylinder and the angle adjusting hydraulic cylinder need to be controlled in the test process, the hydraulic control is realized, the hydraulic servo system can be used for controlling the reaction plate hydraulic cylinder and the angle adjusting hydraulic cylinder, the requirements on test sites and equipment are less, and the operation is simple and convenient.
Drawings
Fig. 1 is a front view of a ground-entry shield model test reaction frame arrangement with continuous propulsion capability.
Figure 2 is a left side view of a ground-entry shield model test reaction frame arrangement with continuous propulsion capability.
Figure 3 is a right side view of a ground-entry shield model test reaction frame arrangement with continuous propulsion capability.
Fig. 4 is a schematic of horizontal origination (0 degrees).
Fig. 5 is a schematic diagram of a tilt-launch (ground entry).
Figure 6 is a schematic illustration of hydraulic ram advancement.
Fig. 7 is a schematic illustration of the propulsion of a model shield machine.
Fig. 8 is a schematic view of an angle indicator.
FIG. 9 is a front view of the reaction force system.
Fig. 10 is a left side view of the reaction force system.
Fig. 11 is a schematic diagram of an implementation state.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 11, a ground-in-out shield model test reaction frame device with continuous propulsion capability comprises an equipment foundation 1 (ground), a fixing bolt 2, a support bracket 3, a shield machine track rotating shaft 4, an angle adjusting hydraulic cylinder 5, an angle adjusting hydraulic cylinder tail rotating shaft 6, an angle adjusting hydraulic cylinder head rotating shaft 7, a model shield machine track 8, a shield reaction plate sliding rail 9, a shield reaction plate 10, a baffle 11, a reaction plate hydraulic cylinder 12, a reaction plate hydraulic cylinder fixing base 13, a model shield machine 14, a shield model box 18 and a soil body 19.
The equipment foundation 1 is a concrete foundation which is cast on the ground or integrated with the shield model box 18; the supporting bracket 3 is fixedly connected with the equipment foundation 1; one end of the angle adjusting hydraulic oil cylinder 5 is connected with the equipment foundation 1 through an angle adjusting hydraulic oil cylinder tail rotating shaft 6, and the other end of the angle adjusting hydraulic oil cylinder is connected with the model shield machine track 8 through an angle adjusting hydraulic oil cylinder head rotating shaft 7, so that the angle adjusting hydraulic oil cylinder tail rotating shaft 6 and the angle adjusting hydraulic oil cylinder head rotating shaft 7 can rotate by taking the angle adjusting hydraulic oil cylinder tail rotating shaft 6 and the angle adjusting hydraulic oil cylinder head rotating shaft 7 as shafts; the model shield tunneling machine track 8 is connected with the support bracket 3 through the shield tunneling machine track rotating shaft 4 and can rotate by taking the shield tunneling machine track rotating shaft 4 as a shaft; the shield reaction plate slide rail 9 is fixedly connected with a model shield machine track 8; the shield reaction plate 10 is connected with the shield reaction plate slide rail 9 through a clamping groove, is fixedly connected with the reaction plate hydraulic oil cylinder 12, and can be pushed by the reaction plate hydraulic oil cylinder 12 to slide along the shield reaction plate slide rail 9; the baffle 11 is fixedly connected with the shield reaction plate 10; the reaction plate hydraulic oil cylinder 12 is fixedly connected with a reaction plate hydraulic oil cylinder fixing base 13; the reaction plate hydraulic oil cylinder fixing base 13 is fixedly connected with the model shield tunneling machine track 8; the model shield machine 14 is placed in a groove of the model shield machine track 8 and is tightly attached to the groove.
Further, the device also comprises an angle indicator 15, an angle indicating pointer 16 and scale marks 17; the angle indicator 15 is connected with the support bracket 3 through an adhesive; the angle indicating pointer 16 is connected with the model shield tunneling machine track 8 through an adhesive and penetrates through the angle indicator 15, so that the angle indicating pointer can normally point to a scale mark 17; the graduation marks 17 are printed on the angle indicator 15.
Furthermore, the supporting bracket 3 is connected with the equipment foundation 1 through a fixing bolt 2; the shield reaction plate slide rail 9 is connected with the model shield machine track 8 in a welding way; the shield is characterized in that the shield reaction plate 10 is connected with the reaction plate hydraulic cylinder 12 in a welding mode, the baffle is connected with the shield reaction plate in a welding mode, and the reaction plate hydraulic cylinder fixing base 13 is connected with the model shield machine track 8 in a welding mode.
Example of cycle construction of propulsion-jack retraction-re-propulsion: the shield launching engineering of the certain ground in-out type adopts a special earth pressure balance shield construction of a GPST with the diameter of phi 6380mm, has two shield propulsion step lengths (ring widths) of 1m and 1.2m respectively, and is arranged as shown in a table 1, and soil layer parameters obtained by engineering investigation are shown in a table 2. In order to seek the balance between the construction quality and the economic benefit, the optimal shield launching angle is disclosed, and a series of ground access type shield launching model tests are developed. The traditional shield model test reaction frame can not meet the actual requirement of ground in-out type shield model test starting, and the ground in-out type shield model test reaction frame device with continuous propelling capability and the operation method thereof can conveniently, quickly and accurately realize the requirement of ground in-out type shield model test starting.
| |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | In total |
| Ring width (m) | 1 | 1 | 1.2 | 1.2 | 1.2 | 1.2 | 1 | 1.2 | 1 | 1 | 11 |
TABLE 1
TABLE 2
The utility model discloses an embodiment is:
(a) according to the actual situation and site conditions of the ground entry-exit shield starting project, the reduced scale ratio is determined to be 1:20, the test scheme is determined as shown in table 4, and the model shield machine 14 with the diameter of 320mm and the length of 1200mm is selected. In order to eliminate the influence of the boundary effect, a shield model box 18 with the length a of 4000mm, the width b of 2500mmm, the height of the starting side (the starting end of the shield propulsion axis) of the shield model box of 1400mm and the height of the terminal side (the ending end of the shield propulsion axis) of the shield model box of 2200mm is selected, and the starting side of the bottom plate of the shield model box 18 extends out 1500mm in the length direction to be used as the equipment foundation 1 of the device. The height of the support bracket 3 is the same as the height of the originating side of the shield model box.
(b) And laying soil. The height of the starting side of the soil body 18 is 1300mm and the height of the terminal side is 1800mm according to the calculation of the test scheme, so that the soil body is in a slope shape at the starting side of the shield model box, the slope foot is close to the starting side, the slope top is close to the terminal side, and the shield propulsion axis passes through the slope of the soil body. Firstly, soil is paved according to the calculated height of the soil on the end point side, the soil layer distribution is shown in table 3, and soil samples are all taken from the engineering construction site. As shown in the figure, when the soil body is arranged, soil pressure boxes are arranged on two sides of a predicted propulsion axis, and displacement sensors are arranged on the upper portion of the soil body and used for measuring changes of internal stress and displacement of the soil body in the test process.
| Serial number | Soil layer name | Soil thickness (mm) | Level of the layer top (mm) |
| ① | |
150 | 0 |
| ② | Sandy |
600 | 150 |
| ③ | |
750 | 750 |
| ④ | Layer of |
300 | 1500 |
TABLE 3
(c) The soil mass originating side grade was treated according to the test protocol shown in table 4. And excavating the soil body at the starting side to the height of the soil body starting side obtained by calculation to form a soil body slope with a slope toe close to the starting side, a slope top close to the terminal side and a slope gradient consistent with the test scheme.
| |
① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ |
| Slope angle (°) | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 |
TABLE 4
(d) According to the requirements of a ground-in shield model test, a support bracket 3 and a tail rotating shaft 6 of an angle adjusting hydraulic oil cylinder are fixed on an equipment foundation (ground) 1 on one side of a shield model box by a fixing bolt 2, so that the equipment is connected with the ground.
(e) An angle adjusting hydraulic oil cylinder 5 is installed, and the angle adjusting hydraulic oil cylinder 5 is connected with an equipment foundation (ground) 1 through a rotating shaft 6 at the tail part of the angle adjusting hydraulic oil cylinder.
(f) And installing a model shield machine track 8, wherein the model shield machine track 8 is connected with the supporting bracket 3 through a shield machine track rotating shaft 4 and is connected with an angle adjusting hydraulic cylinder 5 through an angle adjusting hydraulic cylinder tail rotating shaft 6.
(g) The oil pressure in the counter-force plate hydraulic oil cylinder 12 is released, and the shield counter-force plate 10 retracts along the shield counter-force plate slide rail 9.
(h) And when the shield reaction plate 10 retracts to the tail part of the shield reaction plate slide rail 9, closing the reaction plate hydraulic oil cylinder 12, and stopping the shield reaction plate 10 from moving.
(i) And installing a model shield machine 14 on the model shield machine track 8, so that the tail part of the model shield machine is tightly attached to the shield reaction plate 10.
(j) And installing a baffle 11 to keep the angle of the model shield tunneling machine 14 stable.
(k) And starting the angle adjusting hydraulic oil cylinder 5, starting the model shield machine track 8 to rotate around the shield machine track rotating shaft 4, and observing the angle indicator 15.
(l) And when the angle indicating pointer 16 is about to point to the current experimental set angle, reducing the oil pressure increment of the angle adjusting hydraulic oil cylinder 5 to enable the model shield tunneling machine track 8 to rotate slowly.
(m) immediately closing the angle adjusting hydraulic oil cylinder 5 until the angle indicating pointer 16 points to the current experimental set angle, and stopping the rotation of the model shield tunneling machine track 8.
(n) starting the model shield tunneling machine 14, wherein a cutter head at the front end of the model shield tunneling machine 14 starts to cut soil, and a jack at the tail part starts to provide thrust.
(o) according to the actual propelling step length requirement of the shield engineering and the model test scale, the test propelling step length is shown in table 5. When the model shield machine 14 advances a ring (a working period) specified in the test, the hydraulic oil cylinder 12 of the reaction plate is opened, and simultaneously the jack at the tail part of the model shield machine 14 is retracted, so that the shield reaction plate 10 is always tightly attached to the jack at the tail part of the model shield machine 14.
| |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | In total |
| Ring width (mm) | 50 | 50 | 60 | 60 | 60 | 60 | 50 | 60 | 50 | 50 | 550 |
TABLE 5
(p) immediately closing the reaction plate hydraulic oil cylinder 12 after the jack at the tail part of the model shield machine 14 is completely retracted.
And (q) starting the jack at the tail part of the model shield machine 14 again to push the model shield machine 14 to advance.
(r) repeating the steps (n) - (q) and enabling the model shield tunneling machine 14 to enter the soil body step by step.
(s) when most of the model shield machine 14 enters the soil body, the soil body has sufficient supporting force to the model shield machine 14 to keep the angle of the model shield machine, the baffle 11 is disassembled, and the steps (n) - (q) are continuously repeated.
(t) when the hydraulic oil cylinder 12 of the reaction plate reaches the stroke, the shield reaction plate 10 moves to the front end of the track 8 of the model shield machine, the model shield machine 14 enters the soil body completely, and the model shield machine 14 is closed.
(u) recording each item of data of the test and finishing one test period.
(v) And (4) repeating the steps (b) to (u) according to the test scheme, completing all tests described in the table 4, analyzing and summarizing test data, concluding the schemes that the stress and the settlement meet the construction quality requirements, carrying out economic evaluation on the schemes, and finally revealing the optimal shield launching angle to guide the design and construction of the tunnel.
Examples of continuous uninterrupted propulsion: in the shield launching project of the certain ground, a special earth pressure balance shield with phi 6380mm GPST is adopted for construction, the shield propulsion mode is continuous propulsion, and soil layer parameters obtained by project investigation are shown in table 2. In order to seek the balance between the construction quality and the economic benefit, the optimal shield launching angle is disclosed, and a series of ground access type shield launching model tests are developed. The traditional shield model test reaction frame can not meet the requirement of starting a ground in-out type shield model test, and the ground in-out type shield model test reaction frame device with continuous propelling capability and the operation method thereof can realize the continuous ground in-out type shield starting model test.
The utility model discloses an embodiment is:
(a) according to the actual situation and site conditions of the ground entry-exit shield starting project, the reduced scale ratio is determined to be 1:20, the test scheme is determined as shown in table 4, and the model shield machine 14 with the diameter of 320mm and the length of 1200mm is selected. In order to eliminate the influence of the boundary effect, a shield model box 18 with the length a of 4000mm, the width b of 2500mmm, the height of the starting side (the starting end of the shield propulsion axis) of the shield model box of 1400mm and the height of the terminal side (the finishing end of the shield propulsion axis) of the shield model box of 2200mm is selected, and the starting side of the bottom plate of the shield model box 18 extends out of 1500mm in the starting side in the length direction to be used as the equipment foundation 1 of the device. The height of the support bracket 3 is the same as the height of the originating side of the shield model box.
(b) And laying soil. The height of the starting side of the soil body 18 is 1300mm and the height of the terminal side is 1800mm according to the calculation of the test scheme, so that the soil body is in a slope shape at the starting side of the shield model box, the slope foot is close to the starting side, the slope top is close to the terminal side, and the shield propulsion axis passes through the slope of the soil body. Firstly, soil is paved according to the calculated height of the soil on the end point side, the soil layer distribution is shown in table 3, and soil samples are all taken from the engineering construction site. As shown in the figure, when the soil body is arranged, soil pressure boxes are arranged on two sides of a predicted propulsion axis, and displacement sensors are arranged on the upper portion of the soil body and used for measuring changes of internal stress and displacement of the soil body in the test process.
(c) The soil mass originating side grade was treated according to the test protocol shown in table 4. And excavating the soil body at the starting side to the height of the soil body starting side obtained by calculation to form a soil body slope with a slope toe close to the starting side, a slope top close to the terminal side and a slope gradient consistent with the test scheme.
(d) According to the requirements of a ground-in shield model test, a support bracket 3 and a tail rotating shaft 6 of an angle adjusting hydraulic oil cylinder are fixed on an equipment foundation (ground) 1 on one side of a shield model box by a fixing bolt 2, so that the equipment is connected with the ground.
(e) An angle adjusting hydraulic oil cylinder 5 is installed, and the angle adjusting hydraulic oil cylinder 5 is connected with an equipment foundation (ground) 1 through a rotating shaft 6 at the tail part of the angle adjusting hydraulic oil cylinder.
(f) And installing a model shield machine track 8, wherein the model shield machine track 8 is connected with the supporting bracket 3 through a shield machine track rotating shaft 4 and is connected with an angle adjusting hydraulic cylinder 5 through an angle adjusting hydraulic cylinder tail rotating shaft 6.
(g) The oil pressure in the counter-force plate hydraulic oil cylinder 12 is released, and the shield counter-force plate 10 retracts along the shield counter-force plate slide rail 9.
(h) And when the shield reaction plate 10 retracts to the tail part of the shield reaction plate slide rail 9, closing the reaction plate hydraulic oil cylinder 12, and stopping the shield reaction plate 10 from moving.
(i) And installing a model shield machine 14 on the model shield machine track 8, so that the tail part of the model shield machine is tightly attached to the shield reaction plate 10.
(j) And installing a baffle 11 to keep the angle of the model shield tunneling machine 14 stable.
(k) And starting the angle adjusting hydraulic oil cylinder 5, starting the model shield machine track 8 to rotate around the shield machine track rotating shaft 4, and observing the angle indicator 15.
(l) And when the angle indicating pointer 16 is about to point to the current experimental set angle, reducing the oil pressure increment of the angle adjusting hydraulic oil cylinder 5 to enable the model shield tunneling machine track 8 to rotate slowly.
(m) immediately closing the angle adjusting hydraulic oil cylinder 5 until the angle indicating pointer 16 points to the current experimental set angle, and stopping the rotation of the model shield tunneling machine track 8.
(n) starting the model shield tunneling machine 14, starting a cutter head at the front end of the model shield tunneling machine 14 to cut soil, starting the counter-force plate hydraulic oil cylinder 12 to provide continuous thrust for the model shield tunneling machine 14, and enabling the model shield tunneling machine 14 to continuously enter the soil.
(o) when most of the model shield machine 14 enters the soil body, the soil body has sufficient supporting force to the model shield machine 14 to keep the angle of the model shield machine, the baffle 11 is disassembled, and the shield machine continues to be propelled.
(p) when the hydraulic oil cylinder 12 of the reaction plate reaches the stroke, the shield reaction plate 10 moves to the front end of the track 8 of the model shield machine, the model shield machine 14 enters the soil body completely, and the model shield machine 14 is closed.
(q) recording each item of data of the test, and finishing a test period.
(r) repeating the steps (b) - (q) according to the test scheme, completing all tests described in the table 4, analyzing and summarizing test data, concluding the schemes that the stress and the settlement meet the construction quality requirements, carrying out economic evaluation on the schemes, and finally revealing the optimal shield launching angle to guide the design and construction of the tunnel.
The embodiments described in this specification are merely examples of implementations of the inventive concepts, which are intended for illustrative purposes only. The scope of the present invention should not be construed as being limited to the specific forms set forth in the following description, but rather should be construed as encompassing all the equivalent technical means which may be conceived by one of ordinary skill in the art based on the teachings of the present invention.
Claims (3)
1. A ground-in-out shield model test reaction frame device with continuous propelling capability is characterized by comprising an equipment foundation, a fixing bolt, a supporting bracket, a shield machine track rotating shaft, an angle adjusting hydraulic cylinder tail rotating shaft, an angle adjusting hydraulic cylinder head rotating shaft, a model shield machine track, a shield reaction plate sliding rail, a shield reaction plate, a baffle, a reaction plate hydraulic cylinder fixing base, a model shield machine, a shield model box and a soil body;
the equipment foundation is a concrete foundation which is poured into a whole with the ground or the shield model box; the supporting bracket is fixedly connected with the equipment foundation; one end of the angle adjusting hydraulic cylinder is connected with the equipment foundation through an angle adjusting hydraulic cylinder tail rotating shaft, and the other end of the angle adjusting hydraulic cylinder is connected with the model shield tunneling machine track through an angle adjusting hydraulic cylinder head rotating shaft, so that the angle adjusting hydraulic cylinder tail rotating shaft and the angle adjusting hydraulic cylinder head rotating shaft can rotate by taking the angle adjusting hydraulic cylinder tail rotating shaft and the angle adjusting hydraulic cylinder head rotating shaft as shafts; the model shield machine track is connected with the support bracket through a shield machine track rotating shaft and can rotate by taking the shield machine track rotating shaft as a shaft; the shield reaction plate slide rail is fixedly connected with a model shield machine track; the shield reaction plate is connected with the shield reaction plate slide rail through a clamping groove, is fixedly connected with the reaction plate hydraulic cylinder, and can be pushed by the reaction plate hydraulic cylinder to slide along the shield reaction plate slide rail; the baffle is fixedly connected with the shield reaction plate; the reaction plate hydraulic oil cylinder is fixedly connected with the reaction plate hydraulic oil cylinder fixing base; the fixed base of the hydraulic oil cylinder of the counterforce plate is fixedly connected with the model shield machine track; the model shield machine is placed in a groove of the model shield machine track and is tightly attached to the groove.
2. The ground-entry shield model test reaction frame apparatus with continuous propulsion capability of claim 1, further comprising an angle indicator, an angle indicating pointer and a graduation mark; the angle indicator is connected with the supporting bracket through an adhesive; the angle indicating pointer is connected with the model shield tunneling machine track through an adhesive and penetrates through the angle indicator, so that the angle indicating pointer can normally point to the scale mark; the scale lines are printed on the angle indicator.
3. The ground-access shield model test reaction frame device with continuous propelling capability according to claim 1 or 2, wherein the supporting bracket is connected with the equipment foundation through a fixing bolt; the shield reaction plate slide rail is welded with the model shield machine track; the shield is characterized in that the shield reaction plate is connected with the reaction plate hydraulic cylinder in a welding mode, the baffle is connected with the shield reaction plate in a welding mode, and the reaction plate hydraulic cylinder fixing base is connected with the model shield machine track in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170065.6U CN214952197U (en) | 2021-01-21 | 2021-01-21 | Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120170065.6U CN214952197U (en) | 2021-01-21 | 2021-01-21 | Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214952197U true CN214952197U (en) | 2021-11-30 |
Family
ID=79079083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120170065.6U Active CN214952197U (en) | 2021-01-21 | 2021-01-21 | Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214952197U (en) |
-
2021
- 2021-01-21 CN CN202120170065.6U patent/CN214952197U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112098624B (en) | Test device and method for simulating ground access type shield tunnel excavation | |
| CN105040754B (en) | Device for testing limited soil mass rigid retaining wall soil pressure model | |
| CN102434166A (en) | Device and method for testing influence of tunnel excavation on existing close-distance parallel tunnels | |
| CN108709977A (en) | A kind of ground preloading influences the indoor model test device and test method of existing subway tunnel | |
| CN211904664U (en) | Multifunctional pipe jacking and grouting lubrication resistance reduction process simulation experiment device | |
| CN109403984B (en) | Automatic guiding system for long-distance curve jacking pipe | |
| CN112147313A (en) | Simulation test device for antifriction grouting of large-section rectangular jacking pipe | |
| WO2023226249A1 (en) | Upward earth pressure shield excavation face stability test apparatus and use method thereof | |
| CN110940571B (en) | Test device for simulating dynamic soil arch effect of shed frame structure | |
| CN214952197U (en) | Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability | |
| CN208902713U (en) | Ground preloading influences the indoor model test device of existing subway tunnel | |
| CN110686980B (en) | Tunnel excavation analogue means under inhomogeneous side direction load | |
| CN113622316A (en) | Steel truss girder multipoint traction type pushing construction system and construction method thereof | |
| CN112963159B (en) | Operation method of ground-in shield model test reaction frame device with continuous propelling capability | |
| CN112816235A (en) | Ground outlet-inlet type shield model test reaction frame device with continuous propelling capability | |
| CN204919633U (en) | Limited soil body rigidity barricade soil pressure model test device | |
| CN112985859A (en) | Operation method of two-way inclined ground access type shield launching model test device capable of being accurately controlled | |
| CN210482269U (en) | Reinforced soil body strength detection device for shield construction | |
| CN214616534U (en) | Ground outlet type shield model test reaction frame device for angle stepless adjustment | |
| CN111535318A (en) | Precise installation and adjustment device for steel pipe column by reverse construction method and use method | |
| CN208537201U (en) | A kind of experimental rig of simulation shield machine driving | |
| CN112985856B (en) | Operation method of ground entrance-exit type shield model test reaction frame device suitable for angle stepless adjustment | |
| CN203337473U (en) | Soil pressure sensor mounting and loading test device | |
| Xu et al. | Investigation on the surface settlement of curved shield construction in sandy stratum with laboratory model test | |
| CN206546165U (en) | A kind of horizontal type subgrade settlement measurement apparatus of tandem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |