CN217055188U - Starting receiving device for shield construction - Google Patents
Starting receiving device for shield construction Download PDFInfo
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- CN217055188U CN217055188U CN202220982093.2U CN202220982093U CN217055188U CN 217055188 U CN217055188 U CN 217055188U CN 202220982093 U CN202220982093 U CN 202220982093U CN 217055188 U CN217055188 U CN 217055188U
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Abstract
The utility model belongs to the technical field of shield construction, and discloses a starting and receiving device for shield construction, which comprises a steel sleeve and a transition sleeve, wherein the transition sleeve is provided with a mounting end and a telescopic matching end, and the mounting end is used for connecting a portal steel ring; the steel sleeve is provided with a telescopic connecting end and is in sliding sleeve joint with the telescopic matching end of the transition sleeve through the telescopic connecting end, and the steel sleeve can axially move relative to the transition sleeve; a first sealing structure is arranged between the telescopic connecting end and the telescopic matching end. The utility model discloses a steel sleeve can be directly with transition sleeve sliding seal cooperation to this can make it have certain flexible volume, when steel sleeve received outside pulling force and takes place the displacement, alright realize micro displacement and scalable through the connection structure that slides and cup joint like this, and then can avoid portal steel ring and steel sleeve hard link and lead to appearing the condition of drawing the crack easily, and through seal structure's setting, can make the junction more reliable and stable.
Description
Technical Field
The utility model belongs to the technical field of the shield constructs the construction, concretely relates to receiving arrangement that starts for shield constructs construction.
Background
China is large in population and large in cities, the investment of subways is increased in many cities at present, a large number of shields are used for carrying out tunnel excavation work underground every year, and the launching and receiving of the shields are also accompanied by an auxiliary construction method, namely launching and receiving of the shields in a steel sleeve. In the traditional construction method, the shield steel sleeve and the embedded steel ring of the station end wall are generally connected by welding or bolts, the method is simple and direct to install, but the disadvantage is obvious, the steel sleeve and the embedded steel ring of the station end wall are in rigid connection, and once the steel sleeve has larger displacement in the tunnel axis direction, even if a steel support supports the steel sleeve, the steel sleeve and the embedded steel ring of the portal and the steel sleeve can be cracked, so that the sealing effect of the steel sleeve can be damaged, and the engineering risk of water leakage and mud leakage can be generated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a receiving arrangement that starts for shield constructs construction to solve current steel sleeve because then with pre-buried steel ring rigid connection and exist easily and take place the problem of drawing the fracture.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a starting and receiving device for shield construction comprises a steel sleeve and a transition sleeve, wherein the transition sleeve is provided with a mounting end and a telescopic matching end, and the mounting end is used for connecting a tunnel portal steel ring; the steel sleeve is provided with a telescopic connecting end and is in sliding sleeve joint with the telescopic matching end of the transition sleeve through the telescopic connecting end, and the steel sleeve can axially move relative to the transition sleeve; a first sealing structure is arranged between the telescopic connecting end and the telescopic matching end.
In a possible implementation manner, the mounting end of the transition sleeve is welded, flanged or bolted to the portal steel ring.
In a possible implementation mode, the telescopic connecting end is internally connected with the telescopic matching end, and the inner diameter of the telescopic connecting end is consistent with that of the portal steel ring.
In a possible implementation mode, a grease injection channel is arranged in the wall of the steel sleeve, two ends of the grease injection channel respectively penetrate through the outer side wall of the steel sleeve and respectively form a grease outlet and a grease injection port, and the grease outlet is located at the telescopic connecting end.
In a possible implementation manner, the steel sleeve further has a main body end opposite to the telescopic connection end, at least two axially telescopic support members are arranged on the periphery of the main body end, and the support members have support ends and are connected with the outer side wall of the transition sleeve through the support ends.
In a possible implementation manner, the outer side wall of the main body end is provided with a supporting seat corresponding to one supporting part respectively, the outer side wall of the telescopic matching end is provided with a plurality of connecting seats corresponding to one supporting seat respectively, the supporting parts are arranged on the supporting seats, and the supporting ends of the supporting parts are fixedly connected with the connecting seats.
In a possible implementation manner, at least one sleeve pipe joint is axially arranged at one end of the main body end, which is far away from the telescopic connecting end, and an end cover is fixedly connected to the rear end of the last sleeve pipe joint;
the body end, the sleeve joint and/or the end cap are connected with steel supports.
In a possible implementation manner, the mounting end of the transition sleeve is provided with a first sliding connection part which is in sliding fit and is internally connected with the portal steel ring, and a second sealing structure is arranged between the first sliding connection part and the portal steel ring; the steel sleeve is also provided with a main body end opposite to the telescopic connecting end, at least two axially telescopic supporting parts are arranged on the periphery of the main body end, and each supporting part is provided with a supporting end and is connected with the outer side wall of the transition sleeve through the supporting end.
In a possible implementation manner, when the receiving device is used for an air shaft in a shield area, the air shaft is provided with two portals, one portal is provided with the portal steel ring, the portal steel ring is a first portal steel ring, and the other portal is provided with a second portal steel ring;
and the main body end of the steel sleeve is provided with a second sliding connecting part, the second sliding connecting part is connected with the second portal steel ring in an inscribed mode in a sliding mode, and a third sealing structure is arranged between the second sliding connecting part and the second portal steel ring.
In a possible implementation, the wall of the steel sleeve is provided with a filling opening.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a receiving arrangement that starts for shield structure construction, through setting up in the transition sleeve of portal steel ring, the steel sleeve can be directly with transition sleeve sliding seal cooperation, with this can make it have certain flexible volume, the shield constructs the cutting propulsion in-process in the steel sleeve like this, when the steel sleeve receives outside pulling force and takes place the displacement, alright realize micro displacement and scalable through the connection structure that the slip cup jointed, and then can avoid portal steel ring and steel sleeve hard link and lead to appearing the condition of drawing the crack easily, and through seal structure's setting, can make the junction more reliable and stable.
Moreover, through the arrangement of the grease injection channel, the grease can be conveniently injected, so that the telescopic matching end of the transition sleeve and the telescopic connecting end of the steel sleeve are more convenient to stretch.
Meanwhile, the oil cylinder arranged between the transition sleeve and the steel sleeve can eject the extension sleeve when the shield is cut and pushed in the steel sleeve and the steel sleeve is subjected to outward pulling force to displace, so that the sleeve is stably pressed on an embedded steel ring of a tunnel portal, and the risk of the steel sleeve being cracked during the receiving process of the shield is greatly reduced.
In addition, the receiving device can also be used for shield launching and receiving of structures such as an air shaft in a shield interval and the like, and can play a role in preventing tension fracture of portal steel rings of two portals.
Drawings
Fig. 1 is a schematic structural diagram of a first implementation structure of an originating and receiving device for shield construction according to an embodiment of the present application, which illustrates an implementation structure when a transition sleeve is fixedly connected with a steel ring of a tunnel portal;
FIG. 2 is a schematic view of the installation principle of the structure shown in FIG. 1 when the transition sleeve is connected with the steel ring of the hole door through a flange and in a specific implementation process;
fig. 3 is a schematic structural diagram of another embodiment of an originating and receiving device for shield construction according to an embodiment of the present application, which shows an embodiment of a transition sleeve slidably sleeved with a steel ring of a tunnel portal;
FIG. 4 is a schematic diagram illustrating the mounting of the structure of FIG. 3 in an exemplary implementation;
FIG. 5 is a schematic cross-sectional view of a steel sleeve of an originating receiving device for shield construction according to an embodiment of the present application, the schematic view mainly showing a setting position of a cylinder;
FIG. 6 is a schematic view of an installation structure of an originating receiving device for shield construction when applied to a shield zone air shaft according to an embodiment of the present application;
fig. 7 is a front view of a casing end when an originating receiving apparatus for shield construction according to an embodiment of the present application is used for originating.
In the figure: 1-portal steel ring; 2-a transition sleeve; 21-a mounting end; 22-a telescopic mating end; 23-a first sliding connection; 3-a steel sleeve; 31-a telescopic connection end; 32-body end; 33-a grease injection channel; 34-a grease outlet; 35-grease injection port; 36-a sleeve joint; 37-end cap; 38-a second sliding connection; 39-originating end cap; 310-tunnel segment; 4-a support member; 41-oil cylinder; 42-a connection seat; 43-a support base; 5-supporting steel; 6, a shield machine; 7-a filling opening; 8-filling; 9-sliding sealing ring.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The present invention will be further explained with reference to the drawings and specific embodiments.
Referring to fig. 1-4, an embodiment of the present application provides an originating receiving apparatus for shield construction, which includes a steel sleeve 3, and further includes a transition sleeve 2, where the transition sleeve 2 has a mounting end 21 and a telescopic mating end 22, and the mounting end 21 is used for connecting a steel ring 1 of a tunnel portal; the steel sleeve 3 is provided with a telescopic connecting end 31 and is in sliding sleeve joint with the telescopic matching end 22 of the transition sleeve 2 through the telescopic connecting end 31, and the steel sleeve 3 can axially move relative to the transition sleeve 2; a first sealing structure is arranged between the telescopic connecting end 31 and the telescopic matching end 22.
The transition sleeve 2 and the steel sleeve 3 can form a sleeve structure with a certain telescopic amount through a telescopic matching connection structure, and the steel sleeve 3 can be realized only through one transition sleeve 2, so that trace displacement and scalability can be realized through the sliding sleeved connection structure when the steel sleeve 3 is subjected to outward pulling force to displace in the process of cutting and propelling the shield machine 6 in the steel sleeve 3, and the situation that the tunnel portal steel ring 1 and the steel sleeve 3 are hard connected to cause easy cracking can be avoided, and the connection position can be more reliable and stable through the arrangement of the sealing structure; through the arrangement of the sealing structure, the connecting structure is more reliable and stable.
With continued reference to fig. 1-4, in the embodiment of the present application, the connection between the mounting end 21 of the transition sleeve 2 and the steel ring 1 includes a fixed connection or a movable connection.
The fixed connection may be welding, flange connection or bolt connection, and since the transition sleeve 2 and the steel sleeve 3 are telescopic, the mounting end 21 of the transition sleeve 2 and the portal steel ring 1 may be fixedly connected, and the fixed connection may be welding, flange connection, bolt connection, or the like, without limitation. In one embodiment shown in fig. 1 and 2, the transition sleeve 2 is welded to the steel ring 1 of the tunnel portal. The movable connection may be a sliding connection, that is, a connection structure of the telescopic mating end 22 and the telescopic connecting end 31 is adopted, such as the implementation structure shown in fig. 3 and 4, and such a structure needs to be matched with the supporting part 4.
In a specific implementation process, the telescopic connecting end 31 is inscribed in the telescopic mating end 22, and the inner diameter of the telescopic connecting end 31 is consistent with the inner diameter of the portal steel ring 1. The steel sleeve 3 can be better connected with the portal steel ring 1 through the arrangement structure, so that the shield can be conveniently received.
In order to make the sliding between the steel sleeve 3 and the transition sleeve 2 smoother, as shown in fig. 2 and 4, a grease injection channel 33 may be disposed in the cylinder wall of the steel sleeve 3, two ends of the grease injection channel 33 respectively penetrate through the outer side wall of the steel sleeve 3 and respectively form a grease outlet 34 and a grease injection port 35, and the grease outlet 34 is located at the telescopic connection end 31. Grease outlets 34 and grease inlets 35 are provided at each end of the steel sleeve 3, and the grease outlets 34 are located at the telescoping connection ends 31, which facilitates grease entry to the target through the grease inlet passage 33.
Referring to fig. 1-6, in the embodiment of the present application, the steel sleeve 3 further has a main body end 32 opposite to the telescopic connection end 31, at least two axially telescopic support members 4 are disposed on the periphery of the main body end 32, and the support members 4 have support ends and are connected with the outer side wall of the transition sleeve 2 through the support ends.
The main body section is used as the main body part of the steel sleeve 3, the supporting component 4 which can be arranged on the main body section is used for connecting the transition sleeve 2, the stretching of the receiving device can be controlled through the supporting component 4, and meanwhile, the connection between the receiving device and the steel sleeve can be more stable. The supporting member 4 is a linear driving member, which may be the oil cylinder 41, or may be other existing members that can provide a considerable supporting force, but it is preferably the oil cylinder 41 in the implementation process.
Further, the outer side wall of the body end 32 is provided with a supporting seat 43 corresponding to one of the supporting members 4, the outer side wall of the telescopic mating end 22 is provided with a plurality of connecting seats 42 corresponding to one of the supporting seats 43, the supporting members 4 are mounted on the supporting seats 43, and the supporting ends of the supporting members 4 are fixedly connected with the connecting seats 42.
Thus, the support member 4 can be better connected with the steel sleeve 3 and the transition sleeve 2 through the support seat 43 and the connection seat 42, and can play a role in stable support.
Furthermore, at least one sleeve pipe joint 36 is axially arranged at one end of the main body end 32, which is far away from the telescopic connecting end 31, and an end cover 37 is fixedly connected to the rear end of the last sleeve pipe joint 36; the body end 32, the sleeve joint 36 and/or the end cap 37 are connected with steel struts 5. The sleeve pipe joints 36 are used as the components of the steel sleeve 3, and can be arranged in multiple numbers and spliced at the rear end of the main body end 32, so that the steel sleeves 3 with different length requirements can be spliced by the sleeve pipe joints 36 with different numbers, and the sleeve pipe joints are more flexible and practical; the end cap 37 is used to close off the steel sleeve 3 so as to form a sealed receiving channel; and the steel support 5 may support the steel support 5.
In some embodiments, as shown in fig. 2 and 4, the sliding connection between the steel sleeve 3 and the transition sleeve 2 may be optimized to make the sliding fit structure more reasonable, for example, the outer side wall of the telescopic connection end 31 is provided with a step-like structure distributed along the circumferential direction, and a limiting structure may be formed, so that the connection with the transition sleeve 2 is facilitated, and the limiting structure is also facilitated.
Referring to fig. 3 and 4, in the embodiment of the present application, the mounting end 21 of the transition sleeve 2 has a first sliding connection portion 23, the first sliding connection portion 23 is connected to the portal steel ring 1 in a sliding fit manner, and a second sealing structure is disposed between the first sliding connection portion 23 and the portal steel ring 1; the steel sleeve 3 further has a main body end 32 opposite to the telescopic connection end 31, at least two axially telescopic support members 4 are arranged on the periphery of the main body end 32, and the support members 4 have support ends and are connected with the outer side wall of the transition sleeve 2 through the support ends.
So, under the supporting role of supporting component 4, transition sleeve 2 all through both ends with steel sleeve 3 and portal steel ring 1 sliding connection, do not have direct fixed connection between transition sleeve 2 and the portal steel ring 1, but adopted the seal structure that slides and cup joint, can make and can install fast and demolish between sleeve and the portal steel ring 1, sealed good moreover.
Furthermore, the first sliding connection portion 23 is a stepped connection structure, the second sealing structure includes two sliding sealing rings 9 respectively disposed on the step surface and the circumferential outer side surface, and the transition sleeve 2 is also provided with a grease injection port 35, a grease outlet 34, and a grease injection channel 33, so that when the sliding sealing ring 9 on the step surface is subjected to pushing pressure of the extension oil cylinder 41, the sliding sealing ring 9 is tightly attached between the transition sleeve 2 and the portal pre-embedded steel ring, and then shield tail sealing grease is injected through the grease injection port 35, thereby ensuring the sealing effect between the steel sleeve 3 and the portal steel ring 1.
Referring to fig. 6, an originating and receiving apparatus for shield construction according to an embodiment of the present invention may also be used for shield originating and receiving of structures such as an air shaft in a shield section, where the air shaft generally has two portals, one portal has the portal steel ring 1, and the portal steel ring 1 is a first portal steel ring, and the other portal has a second portal steel ring; the main body end 32 of the steel sleeve 3 (including the main body end 32 provided with the sleeve pipe joint 36) is provided with a second sliding connection part 38, the second sliding connection part 38 is connected with the second portal steel ring in a sliding fit manner, and a third sealing structure is arranged between the second sliding connection part 38 and the second portal steel ring.
The general shield interval air shaft and other structures are generally 6 meters to 10 meters in length, if the embedded steel ring and the steel sleeve 3 are welded, the sleeve is not prestressed in advance, the tightness of the sleeve installation is not good, and after the steel sleeve 3 adopting the flexible structure is adopted, the oil cylinder 41 actively extends out, so that the transition sleeve 2 and the steel sleeve 3 can be respectively propped against the end walls at two ends, and the stability and the sealing effect of the steel sleeve 3 are improved.
Fig. 6 is a schematic diagram of a general shield crossing the air shaft interval by using the receiving device, the shield needs to come out from a tunnel portal a and slide for 6-10 meters and then reach a tunnel portal B, and the short 6-10 meters are used for completing the receiving of the shield and the starting of the shield. By adopting the sleeve structure of the transition sleeve 2 and the steel sleeve 3, after the filling material 8 is filled in the steel sleeve 3, the shield can normally tunnel through the inside of the steel sleeve 3 filled with mortar or other filling materials 8 without adjusting the soil pressure, thereby ensuring the safety of the ground.
In the embodiment of the present application, the wall of the steel sleeve 3 is provided with a filling opening 7.
The filler opening 7 can facilitate filling of mortar or other fillers 8, and the filler opening 7 can be disposed at both the transition sleeve 2 and the steel sleeve 3, and can be disposed at both positions, so as to facilitate rapid filling of the fillers 8, without limitation.
In a specific implementation process, the steel sleeve 3 and the transition sleeve 2 respectively comprise an upper part and a lower part, each part is of a semicircular structure, and the parts are spliced with each other to form a complete sleeve structure.
The starting and receiving device for shield construction of the embodiment of the application is a construction method when a transition sleeve 2 and a portal steel ring 1 are also in sliding connection, and takes the construction method as a representative description, and comprises the following steps:
1. the lower half of the transition sleeve 2 is hoisted into position in the shaft of the shield.
2. The upper half part of the transition sleeve 2 is hung on the lower half part of the transition sleeve 2 in the shaft, and the upper part and the lower part of the transition sleeve 2 are firmly connected by bolts or welded.
3. The lower half part of the steel sleeve 3 is hoisted into a vertical shaft of the shield,
4. the upper half of the steel sleeve 3 is suspended into the shield shaft and connected with the lower half of the steel sleeve 3.
5. At the front end of the steel sleeve 3 is mounted a sliding seal 9, which may have one to several passes.
6. The front end of the steel sleeve 3 is pushed into the interior of the transition sleeve 2,
7. the oil cylinder 41 is connected with a connecting seat 42 on the transition sleeve 2.
8. A sliding seal ring 9 is mounted on the step surface and the peripheral side surface.
9. The combination of the steel sleeve 3 and the transition sleeve 2 is pushed into the steel ring 1 of the tunnel door, and the sleeve section where the sliding seal ring 9 at the step surface of the transition sleeve 2 is located is pressed and attached to the end wall of the tunnel door of the station.
10. The required number of sleeve pipe joints 36 are installed in sequence, and the corresponding number of pipe joints can be installed according to the actual required length.
11. Sleeve end cap 37 is installed.
12. A steel support 5 for mounting the steel sleeve 3.
13. After all the systems are installed, the oil cylinder 41 is pressurized, and the installation of the device is completed.
14. Grease is injected from the grease hole injection port, so that the sliding seal ring 9 is lubricated, and the sealing capacity between the transition sleeve 2 and the steel sleeve 3 is improved.
15. And injecting shield tail sealing grease from the grease injection port 35 on the transition sleeve 2, and closing a valve of the grease injection port 35 after the injection is finished.
16. And pouring water between the cavities in the steel sleeve for sealing test, and discharging the water after the sealing requirement is met.
17. And filling the filler from a filler opening 7 with a valve at the top of the cylinder body of the transition sleeve 2 or the steel sleeve 3, and tightly closing the valve after the filler is filled to be compact, so that the receiving preparation work of the steel sleeve 3 is completed.
The construction method is described by taking shield receiving as an example, the embodiment of the application can also be used during shield starting, the using method is basically the same as that of shield receiving, and the specific difference is that an end cover 37 is not arranged at the main body end of the steel sleeve, an originating end cover 39 is adopted, the originating end cover 39 is of an annular structure, the outer diameter of the originating end cover is connected with the sleeve, and the inner diameter of the originating end cover is slightly larger than that of the tunnel segment 310. The starting end cover 39 is connected with a steel sleeve, and after the tunnel segment is assembled, the tunnel segment is pushed out and pressed on the starting end cover 39 by pushing of the propelling oil cylinder, as shown in fig. 7.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (10)
1. An originating and receiving device for shield construction, comprising a steel sleeve (3), characterized in that: the transition sleeve (2) is provided with a mounting end (21) and a telescopic matching end (22), and the mounting end (21) is used for connecting the portal steel ring (1); the steel sleeve (3) is provided with a telescopic connecting end (31) and is in sliding sleeve joint with the telescopic matching end (22) of the transition sleeve (2) through the telescopic connecting end (31), and the steel sleeve (3) can axially move relative to the transition sleeve (2); a first sealing structure is arranged between the telescopic connecting end (31) and the telescopic matching end (22).
2. The originating and receiving apparatus for shield construction according to claim 1, wherein: and the mounting end (21) of the transition sleeve (2) is welded, connected with a flange or connected with a bolt with the portal steel ring (1).
3. The originating receiving apparatus for shield construction according to claim 1, wherein: the telescopic connecting end (31) is internally connected with the telescopic matching end (22), and the inner diameter of the telescopic connecting end (31) is consistent with that of the portal steel ring (1).
4. The originating receiving apparatus for shield construction according to claim 1, wherein: the oil injection passage (33) is arranged in the wall of the steel sleeve (3), two ends of the oil injection passage (33) penetrate through the outer side wall of the steel sleeve (3) respectively and form an oil outlet (34) and an oil injection port (35) respectively, and the oil outlet (34) is located at the telescopic connecting end (31).
5. An originating receiving apparatus for shield construction according to any one of claims 1 to 4, wherein: the steel sleeve (3) is further provided with a main body end (32) opposite to the telescopic connecting end (31), at least two axially telescopic supporting components (4) are arranged on the periphery of the main body end (32), and the supporting components (4) are provided with supporting ends and connected with the outer side wall of the transition sleeve (2) through the supporting ends.
6. The originating receiving apparatus for shield construction according to claim 5, wherein: the outer side wall of the main body end (32) corresponds to one supporting part (4) respectively and is provided with a supporting seat (43), the outer side wall of the telescopic matching end (22) is provided with a plurality of connecting seats (42) corresponding to one supporting seat (43), the supporting part (4) is installed on the supporting seat (43), and the supporting end of the supporting part (4) is fixedly connected with the connecting seats (42).
7. The originating and receiving apparatus for shield construction according to claim 6, wherein: at least one sleeve pipe joint (36) is axially arranged at one end of the main body end (32) which is far away from the telescopic connecting end (31), and an end cover (37) is fixedly connected to the rear end of the last sleeve pipe joint (36);
the body end (32), the sleeve tube section (36) and/or the end cap (37) are connected with a steel support (5).
8. An originating receiving device for shield construction according to any one of claims 1, 3 and 4, wherein: the mounting end (21) of the transition sleeve (2) is provided with a first sliding connection part (23), the first sliding connection part (23) is connected with the portal steel ring (1) in a sliding fit manner, and a second sealing structure is arranged between the first sliding connection part (23) and the portal steel ring (1);
the steel sleeve (3) is further provided with a main body end (32) opposite to the telescopic connecting end (31), at least two axially telescopic supporting components (4) are arranged on the periphery of the main body end (32), and the supporting components (4) are provided with supporting ends and are connected with the outer side wall of the transition sleeve (2) through the supporting ends.
9. The originating and receiving apparatus for shield construction according to claim 8, wherein: when the receiving device is used for the air shaft in the shield area, the air shaft is provided with two portals, one portal is provided with the portal steel ring (1), the portal steel ring (1) is a first portal steel ring, and the other portal is provided with a second portal steel ring;
the body end (32) of the steel sleeve (3) is provided with a second sliding connection part (38), the second sliding connection part (38) is connected with the second portal steel ring in an inscribed sliding fit mode, and a third sealing structure is arranged between the second sliding connection part (38) and the second portal steel ring.
10. The originating and receiving apparatus for shield construction according to claim 1, wherein: and a filling opening (7) is formed in the wall of the steel sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220982093.2U CN217055188U (en) | 2022-04-25 | 2022-04-25 | Starting receiving device for shield construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220982093.2U CN217055188U (en) | 2022-04-25 | 2022-04-25 | Starting receiving device for shield construction |
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| Publication Number | Publication Date |
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| CN217055188U true CN217055188U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220982093.2U Active CN217055188U (en) | 2022-04-25 | 2022-04-25 | Starting receiving device for shield construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949419A (en) * | 2023-02-13 | 2023-04-11 | 北京京合顺通隧道工程有限公司 | Construction system and construction method for shield to pass through air shaft |
-
2022
- 2022-04-25 CN CN202220982093.2U patent/CN217055188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949419A (en) * | 2023-02-13 | 2023-04-11 | 北京京合顺通隧道工程有限公司 | Construction system and construction method for shield to pass through air shaft |
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