CN211201973U - Shield constructs top and digs quick-witted power system's cable erection joint structure - Google Patents
Shield constructs top and digs quick-witted power system's cable erection joint structure Download PDFInfo
- Publication number
- CN211201973U CN211201973U CN201921704319.7U CN201921704319U CN211201973U CN 211201973 U CN211201973 U CN 211201973U CN 201921704319 U CN201921704319 U CN 201921704319U CN 211201973 U CN211201973 U CN 211201973U
- Authority
- CN
- China
- Prior art keywords
- cable
- shield
- relay box
- power supply
- tunnel
- 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
The utility model discloses a shield constructs top and digs quick-witted electric power system's cable erection joint structure, shield constructs top and digs quick-witted electric power system and includes ground power supply system, shield body distribution system and cable, is provided with the trunk on annular top iron or top pushing system, the cable divide into fixed part cable and portable part cable, fixed part cable one end is connected with ground power supply system, and its other end is connected with trunk inlet wire end, portable part cable one end is connected with the trunk leading-out terminal, and its other end is connected with shield body distribution system. The utility model discloses an install the relay box additional, on satisfying safe power consumption standard's basis, wholly break off original cable for two parts, dig the construction at the top and accomplish a lesson back like this, only need to accomplish the cable in the lesson with the tunnel and the leading-out terminal disconnection of relay box, can satisfy the installation location of next lesson to improve the construction process and linked up, guaranteed the smooth tunnelling of rectangle shield top excavator.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to mainly to balanced rectangle shield of earth pressure to sandy gravel stratum constructs cable erection joint structure of machine electric power system of digging on top.
Background
Along with the rapid development of urban construction, the demand and the requirement on the construction of urban underground space are continuously improved, the traditional underground engineering construction technology cannot meet the requirement of central urban construction, and the traditional underground engineering construction technology replaces the rapidly-developed non-excavation technology, wherein the technology comprises a rectangular shield top excavation technology.
The earth pressure balance rectangular shield top excavation construction method is a novel construction process which takes earth pressure balance top excavation as a core and combines the characteristics of shield construction and pipe jacking construction, and the process is only applied to a few domestic areas at present.
According to the original power system design of a medium-speed railway equipment CRE 242 rectangular shield machine, as shown in fig. 1, a low-voltage 0.4KV TN-S power supply system is mainly adopted in the power system of the conventional rectangular shield machine, and a box transformer substation and a first-level distribution box of S11-630KVA are arranged on the ground. A low-voltage main switch cabinet is arranged on the ground of an originating working well by a manufacturer, and is mainly used for distributing power consumption requirements of a host and equipment of the originating well. The outgoing line of the switch cabinet is directly connected to the main switch cabinet of the shield body of the equipment main machine in a three-phase five-wire system TN-S system mode through 6 single-core 240mm2 and 2 flexible rubber sleeve cables of 50mm2, and main power supply connection is achieved.
As shown in fig. 2, in this power supply connection manner, after 7 construction of a pipe joint is completed by each top excavation, 8 cables need to be disassembled from the main power distribution cabinet in the shield body, and manually pulled back to the space where the tunnel is completed, and coiled to the ground through the cable coil 10, so as to achieve the purpose of not influencing the construction of the pipe joint installation. The whole cable is disassembled, installed and constructed, and certain risks exist due to very complicated manual pulling.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the existing problems, the cable installation and connection structure of the shield top excavator power system can greatly improve the efficiency of the link that the rectangular shield machine stops to wait for installation of the pipe joints, so that smooth construction is guaranteed.
The technical scheme of the utility model is realized like this: a cable installation connection structure of a shield top excavator power system comprises a ground power supply system, a shield body power distribution system and a cable, wherein one end of the cable is connected with the ground power supply system, and the other end of the cable is connected with the shield body power distribution system of the shield top excavator after penetrating through a pushing system and an annular top iron, and is characterized in that: the annular top iron or the pushing system is provided with a relay box, the cable is divided into a fixed part cable and a movable part cable, one end of the fixed part cable is connected with a ground power supply system, the other end of the fixed part cable is connected with a wire inlet end of the relay box, one end of the movable part cable is connected with a wire outlet end of the relay box, and the other end of the movable part cable is connected with a shield body power distribution system.
Shield constructs top and digs quick-witted power system's cable erection connection structure, its the trunk is installed on the inboard ring post of annular top iron.
Shield constructs top and digs quick-witted power system's cable erection connection structure, it is provided with a plurality of drums in the tube coupling that the tunnel has been accomplished, the wire-wound has corresponding cable on every drum.
Shield constructs top and digs quick-witted power system's cable erection connection structure, it is provided with a plurality of cable buckle along the tunnel direction in the tube coupling that the tunnel has been accomplished, but the movable part cable joint who arranges along the tunnel is on each cable buckle.
The utility model discloses an additional relay box of installing is used for the intermediate junction of rectangle shield structure host computer part power consumption, on satisfying safe power consumption standard's basis, wholly break off original cable for two parts, after a pipe coupling is accomplished in the construction of top digging like this, only need to accomplish the cable in the pipe coupling and the leading-out terminal disconnection of relay box with the tunnel, can satisfy the installation location of next pipe coupling, thereby improved the construction process and linked up, guaranteed that rectangle shield constructs the smooth tunnelling of top excavator.
Drawings
Fig. 1 is a schematic diagram of a cable connection structure of a conventional device.
Fig. 2 is a schematic view of the prior art apparatus in the installed position of the pipe joints.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic view of the present invention when the pipe joint is installed and positioned.
The labels in the figure are: the system comprises a ground power supply system 1, a shield body power distribution system 2, a cable 3, a fixed part cable 3a, a movable part cable 3b, a pushing system 4, an annular top iron 5, a relay box 6, a pipe joint 7, a wire coil 8, a cable buckle 9 and a cable wire coil 10.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 3, a cable installation and connection structure of a shield top excavator electric power system includes a ground power supply system 1, a shield body power distribution system 2 and a cable 3, one end of the cable 3 is connected with the ground power supply system 1, the other end of the cable passes through a pushing system 4 and a ring-shaped top iron 5 and then is connected with the shield body power distribution system 2 of the shield top excavator, a relay box 6 is arranged on the ring-shaped top iron 5 or the pushing system 4, the cable 3 is divided into a fixed part cable 3a and a movable part cable 3b, one end of the fixed part cable 3a is connected with the ground power supply system 1, the other end of the fixed part cable is connected with a wire inlet end of the relay box 6, one end of the movable part cable 3b is connected with a wire outlet end of the relay box 6, and the other end of the movable part cable is connected with the shield body power.
In the embodiment, the relay box 6 is installed on an inner side ring column of the annular top iron 5, and according to the actual structural size of the annular top iron and the installation specification of electrical equipment, the height of the cabinet body is 2 meters on the bottom surface of the inner side of the annular top iron, and an insulating operation platform is arranged; the width of the box body is consistent with that of the annular top iron stand column, the thickness of the box body is 2mm, the relay box mainly comprises wire inlet and outlet wiring terminals, the requirement of three-phase five-wire wiring is met, and a grounding terminal row is arranged in the power distribution cabinet and is mainly used for repeated grounding; a plurality of wire coils 8 are arranged in the tube section 7 with the finished tunnel, corresponding cables are wound on each wire coil 8, a plurality of cable buckles 9 are arranged in the tube section 7 with the finished tunnel along the tunnel direction, and the movable partial cables 3b arranged along the tunnel are clamped on the cable buckles 9.
As shown in fig. 3 and 4, a method for connecting a cable installation connection structure of a shield tunneling machine power system specifically includes: when the shield top excavator needs to supply power to operate, one end of the fixed part cable is connected with a ground power supply system, the other end of the fixed part cable is connected with a wire inlet end of the relay box, one end of the movable part cable is connected with a wire outlet end of the relay box, and the other end of the movable part cable is connected with a shield body power distribution system, so that power supply connection of the shield top excavator is achieved.
After one pipe joint is completed in the top excavation construction, a switch of a low-voltage cabinet of a starting well is disconnected, then a cable at a wire outlet end is disassembled on a relay box, a movable part of the disassembled cable joint is pulled into the completed tunnel pipe joint, a fixed part of the cable is always connected with a wire inlet end of the relay box, a pushing system drives an annular top iron to retract, after the next pipe joint is hoisted to a specified installation position, the movable part of the cable joint is connected with the wire outlet end of the relay box again, and the construction of the corresponding pipe joint is continued.
The utility model discloses disassembling, the installation of well cable are simple, safety, have practiced thrift the preparation pipeline time after each ring canal festival accomplishes, have improved the efficiency of construction. After an original pushing is finished on a ring pipe joint, the pipe joint needs 2 hours of installation and positioning and pipeline connection, and through the improved design of additionally installing a relay box of an electric power system, the link can be shortened to 1 hour, so that the efficiency of the link that the rectangular shield machine stops to wait for the installation of the pipe joint is greatly improved, and the smoothness of construction is ensured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A cable installation connection structure of a shield top excavator power system comprises a ground power supply system (1), a shield body power distribution system (2) and a cable (3), wherein one end of the cable (3) is connected with the ground power supply system (1), and the other end of the cable is connected with the shield body power distribution system (2) of the shield top excavator after passing through a top pushing system (4) and a ring-shaped top iron (5), and is characterized in that: the annular top iron (5) or the pushing system (4) is provided with a relay box (6), the cable (3) is divided into a fixed part cable (3a) and a movable part cable (3b), one end of the fixed part cable (3a) is connected with the ground power supply system (1), the other end of the fixed part cable is connected with the wire inlet end of the relay box (6), one end of the movable part cable (3b) is connected with the wire outlet end of the relay box (6), and the other end of the movable part cable is connected with the shield body power distribution system (2).
2. The cable installation connection structure of the shield tunneling machine power system according to claim 1, characterized in that: the relay box (6) is arranged on an inner side ring column of the annular top iron (5).
3. The cable installation connection structure of the shield tunneling machine power system according to claim 1, characterized in that: a plurality of wire coils (8) are arranged in the tube joint (7) with the finished tunnel, and corresponding cables are wound on each wire coil (8).
4. The cable installation connection structure of the shield tunneling machine power system according to claim 3, wherein: a plurality of cable buckles (9) are arranged in the finished pipe joint (7) of the tunnel along the tunnel direction, and the movable part of the cable (3b) arranged along the tunnel is clamped on each cable buckle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704319.7U CN211201973U (en) | 2019-10-12 | 2019-10-12 | Shield constructs top and digs quick-witted power system's cable erection joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704319.7U CN211201973U (en) | 2019-10-12 | 2019-10-12 | Shield constructs top and digs quick-witted power system's cable erection joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211201973U true CN211201973U (en) | 2020-08-07 |
Family
ID=71850985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921704319.7U Active CN211201973U (en) | 2019-10-12 | 2019-10-12 | Shield constructs top and digs quick-witted power system's cable erection joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211201973U (en) |
-
2019
- 2019-10-12 CN CN201921704319.7U patent/CN211201973U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203734209U (en) | Live working device for cable bypass | |
| CN205049795U (en) | Integration optical cable draws device down in transformer substation | |
| CN211201973U (en) | Shield constructs top and digs quick-witted power system's cable erection joint structure | |
| CN204481450U (en) | Underground pipe gallery wire rod water repellent component | |
| CN106786227B (en) | A kind of rock tunnel(ling) machine service cable extends device and operating method | |
| CN110735643A (en) | cable mounting and connecting structure of shield top excavator power system and connecting method thereof | |
| CN202424099U (en) | Branch joint of underground distribution cable | |
| CN101645548A (en) | Method for grounding single-core high-voltage cable metal sheath | |
| CN203103897U (en) | Cold shrink intermediate connector | |
| CN212723181U (en) | Cable fault on-line detection and positioning device based on shield layer grounding wire coupling | |
| CN103594971A (en) | Method for replacing single-circuit wire of common-tower double-circuit lines | |
| CN201533144U (en) | Lengthened cable intermediate connector | |
| CN201490354U (en) | Grounding system of metal sheath of single-core high-voltage cable | |
| CN204424850U (en) | Cable laying RC pipejacking | |
| CN202772544U (en) | T-type three-phase high-tension no-partial-discharge cable joint | |
| CN206804952U (en) | Optical cable and communications cable component | |
| CN204424852U (en) | A kind of spring clip cable reel device | |
| CN206302059U (en) | A kind of switch cubicle of the quick secondary connection of energy | |
| CN213243484U (en) | Double-loop cable laying system | |
| CN201430402Y (en) | Connection system for tower and ground wires | |
| CN209765117U (en) | High strength protection wire jumper that zooms out | |
| CN112918312A (en) | Split type charging pile adopting aerial connecting pipeline or earth surface connecting pipeline outgoing mode | |
| CN218678377U (en) | Structure of overhead suspension power cable and signal cable on same pole | |
| CN203456828U (en) | Overhead wire type terminal wire pulling device | |
| CN203931616U (en) | The dual-purpose cable of a kind of mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |