CN109578015B - Shield method connection channel assembled type negative ring pipe piece integral dismantling method - Google Patents
Shield method connection channel assembled type negative ring pipe piece integral dismantling method Download PDFInfo
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- CN109578015B CN109578015B CN201811495545.9A CN201811495545A CN109578015B CN 109578015 B CN109578015 B CN 109578015B CN 201811495545 A CN201811495545 A CN 201811495545A CN 109578015 B CN109578015 B CN 109578015B
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- Prior art keywords
- negative ring
- ring pipe
- pipe piece
- negative
- cylinder
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
- E21D11/406—Placing endless lining elements, e.g. from reels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a method for integrally removing assembled negative ring duct pieces of a shield method communication channel, which is characterized in that each negative ring duct piece which is borne by a support system trolley and is assembled is fixed by a bolt, and each negative ring duct piece is fixedly connected along the axial direction by channel steel to form a negative ring duct piece cylinder body with an integral structure; in the support system trolley, a movable distance is formed between the retracted rear support plate and the side wall of the shield tunnel; the rear supporting plate and the negative ring duct piece cylinder which are retracted are fixedly connected into a whole by a rigid pull rod, and the rear supporting plate can be pushed by a cross-brace oil cylinder arranged between a vertical upright post and the rear supporting plate in a supporting system trolley, so that the negative ring duct piece cylinder and the positive ring duct piece can be separated. The invention realizes the integral dismantling of the negative ring pipe sheet in the construction process of the assembled type connecting channel.
Description
Technical Field
The invention relates to the construction field of subway main line tunnels and interval communication channels, in particular to a method for dismantling a spliced negative ring pipe sheet applied to shield method communication channel construction.
Background
In the shield starting construction, the negative ring segment is a temporary structure for providing counter force for the tunneling of a shield machine; the negative ring duct piece basically adopts the same structural form as the positive ring duct piece; the negative ring duct piece is arranged between a shield machine power system and a back support system, and stable counter force is provided for the shield machine to tunnel by using the structural rigidity and strength of the back support system and the negative ring duct piece.
In the prior art, the application of the negative ring duct piece in the construction of the subway positive line tunnel is that the negative ring duct piece is installed in a shield starting shaft, and the negative ring duct piece needs to be removed after a shield machine tunnels to a proper distance or a tunnel is opened. At present, the negative ring pipe piece in a shield starting shaft is removed from top to bottom one by utilizing negative ring pipe piece blocking and construction, a single pipe piece is firstly pulled open in the negative ring pipe piece by adopting a vertical lifting appliance, and then the negative ring pipe piece is vertically lifted out of the shaft.
However, in the construction of the shield method communication channel, the assembled negative ring segment is assembled in the subway positive line tunnel when the shield is started, and is limited by the inner diameter of the positive line tunnel, the top space of the negative ring segment is very narrow and cannot provide the vertical lifting operation space of a lifting appliance, and the disassembly of the negative ring segment becomes one of the difficulties in the construction of the assembled communication channel.
Disclosure of Invention
The invention provides a method for integrally removing the assembled negative ring pipe piece of the shield method communication channel in order to avoid the defects in the prior art, so that the construction of the assembled communication channel can be smoothly carried out, and the progress of the project is ensured.
The invention adopts the following technical scheme for solving the technical problems:
the invention relates to a method for integrally removing a spliced negative ring pipe piece of a shield method communication channel, which is characterized by comprising the following steps of:
and 6, integrally hoisting and transporting the negative ring pipe piece cylinder out of the well at the well mouth through ground vertical hoisting equipment, and disassembling the negative ring pipe piece on the ground to realize the integral disassembly of the assembled negative ring pipe piece of the shield method communication channel.
The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel is also characterized in that: and (4) when the step (1) is finished, an axial pushing device is arranged between the positive ring pipe piece and the adjacent negative ring pipe piece, and in the step (4), the axial pushing device and/or the cross-brace oil cylinder are utilized to push the rear supporting plate, so that the negative ring pipe piece cylinder body is quickly separated from the positive ring pipe piece.
The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel is also characterized in that: the axial pushing device is a jack fixedly installed on one side of the positive ring pipe piece by utilizing a temporary support.
The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel is also characterized in that: the number of the rigid pull rods is four, and the four rigid pull rods are uniformly distributed on the circumference of the negative ring segment cylinder.
The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel is also characterized in that: the rigid pull rod is an extension section of the channel steel.
Compared with the prior art, the invention has the beneficial effects that:
1. the method effectively solves the problem of dismantling the negative ring pipe piece in the construction of the shield method connecting channel.
2. According to the invention, the transverse supporting oil cylinder in the supporting system trolley is utilized to push the rear supporting panel, so that the negative ring duct piece barrel is separated from the positive ring duct piece, and the negative ring duct piece barrel is transported along the trolley track in the shield tunnel along with the supporting system trolley, the existing equipment is effectively utilized, the integral dismantling and hoisting well discharge of the negative ring duct piece barrel are realized, the whole process is compact and efficient, and other equipment is not required to be added.
3. The invention fully utilizes the existing equipment and arrangement, reorganizes and lays, exerts the working performance of each part, realizes the disassembly of the reinforced concrete structure negative ring which has heavy weight, large volume and difficult disassembly in a small space, avoids the construction risk of independent disassembly, and ensures the construction safety and the construction efficiency.
4. According to the invention, the assembled negative ring pipe pieces are tightly connected into a whole by using the channel steel, so that the rigidity performance of the negative ring pipe pieces is fully exerted, the concrete structure is prevented from loosening and falling in the dismantling and hoisting processes, and the safety is ensured.
Drawings
FIG. 1 is a view showing an overall disassembled structure of a negative ring pipe piece in the present invention;
FIG. 1a is a schematic side view of FIG. 1;
FIG. 2 is a schematic view of a support system trolley of the present invention;
FIG. 2a is a schematic side view of FIG. 2;
FIG. 3 is a schematic view of a negative loop plate support reaction frame of the present invention;
FIG. 3a is a schematic side view of FIG. 3;
FIG. 4 is a schematic view of the removal process of the negative collar piece of the present invention, with the support panel retracted;
FIG. 4a is a schematic side view of FIG. 4;
FIG. 5 is a schematic view of a tension bar made of channel steel connecting a negative ring tube sheet and a support panel;
FIG. 5a is a schematic side view of FIG. 5;
FIG. 6 is a schematic view of the present invention with the negative ring removed as a whole;
FIG. 7 is a schematic view of the whole negative ring of the present invention being lifted out;
reference numbers in the figures: the supporting system trolley comprises a supporting system trolley body 1, a vertical stand column 1a, a supporting reaction frame 2, a rear supporting plate 3, a cross-brace oil cylinder 4, a negative ring pipe piece 5, a positive ring pipe piece 6, a shield tunnel 7, a temporary support 8, a jack 9, channel steel 10, a rigid pull rod 10a, a sling 11 and a trolley track 12.
Detailed Description
Referring to fig. 1, fig. 1a, fig. 2a, fig. 4 and fig. 4a, the structure for integrally removing the assembled negative ring pipe piece of the shield method communication channel in the present embodiment is: fixing each negative ring pipe piece 5 which is borne by the support system trolley 1 and is assembled by using bolts, and fixedly connecting each negative ring pipe piece 5 along the axial direction by using channel steel 10 to form a negative ring pipe piece cylinder body with an integral structure; in the support system trolley 1, a movable distance is formed between the retracted rear support plate 3 and the side wall of the shield tunnel 7; the retracted rear supporting plate 3 and the negative ring duct piece cylinder are fixedly connected into a whole by a rigid pull rod 10a, and the rear supporting plate 3 can be pushed by a cross-brace oil cylinder 4 arranged between a vertical upright 1a and the rear supporting plate 3 in the supporting system trolley 1, so that the negative ring duct piece cylinder and the positive ring duct piece 6 can be separated.
In the specific implementation, the corresponding measures also comprise:
as shown in fig. 4 and 6, an axial pushing device is arranged between the positive ring segment 6 and the adjacent negative ring segment 5, and the axial pushing device and/or the cross-bracing oil cylinder 4 is used for pushing the rear support plate 3, so that the negative ring segment cylinder body is quickly separated from the positive ring segment 6, and the axial pushing device is a jack 9 fixedly mounted on one side of the positive ring segment 6 by using a temporary support 8; the number of the rigid pull rods 10a is four, and the four rigid pull rods 10a are uniformly distributed on the circumference of the negative ring segment cylinder; the rigid tie rod 10a is an extension of the channel 10.
The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel in the embodiment comprises the following steps:
And 2, removing a supporting reaction frame 2 at the tail part of the negative ring pipe sheet cylinder body (as shown in figures 3 and 3 a), and retracting the rear supporting plate 3 by using a cross-support oil cylinder 4 arranged between a vertical upright 1a and the rear supporting plate 3 in the supporting system trolley 1 (as shown in figures 4 and 4 a), so that a movable distance is formed between the rear supporting plate 3 and the side wall of the shield tunnel 7.
And 3, fixedly connecting the rear supporting plate 3 and the negative ring pipe piece cylinder into a whole by using a rigid pull rod 10a (as shown in fig. 5 and 5 a), and removing a connecting bolt between the positive ring pipe piece 6 and the negative ring pipe piece 5 positioned at the front end of the negative ring pipe piece cylinder to remove the connection between the negative ring pipe piece cylinder and the positive ring pipe piece 6.
And 4, pushing the rear supporting plate 3 by using a cross-brace oil cylinder 4 in the supporting system trolley 1, so that the negative ring duct piece cylinder moves along with the rear supporting plate 3, and separating the negative ring duct piece cylinder from the positive ring duct piece 6 (as shown in fig. 6).
And 5, the separated negative ring pipe piece cylinder is kept to be borne by the support system trolley 1, and the support system trolley 1 is utilized to transport the negative ring pipe piece cylinder to a wellhead along a trolley track 12 in the shield tunnel 7.
And 6, hoisting the whole negative ring pipe piece cylinder out of the well by using a lifting belt 11 (shown in figure 7) through ground vertical hoisting equipment at a wellhead, and disassembling the negative ring pipe piece on the ground to realize the whole disassembly of the assembled negative ring pipe piece of the shield method communication channel.
In specific implementation, when the step 1 is completed, an axial pushing device can be arranged between the positive ring pipe piece 6 and the adjacent negative ring pipe piece 5, and in the step 4, the axial pushing device and/or the cross-brace oil cylinder 4 is used for pushing the rear supporting plate 3, so that the negative ring pipe piece cylinder body is quickly separated from the positive ring pipe piece; the axial pushing device is a jack 9 fixedly arranged on one side of the positive ring pipe piece 6 by utilizing a temporary support 8; the number of the rigid pull rods 10a is four, the four rigid pull rods 10a are uniformly distributed on the circumference of the negative ring segment cylinder, and the rigid pull rods 10a are also channel steel members and are extension sections of channel steel 10 to strengthen the integrity of the structure.
Claims (5)
1. The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel is characterized by comprising the following steps of:
step 1, fastening connecting bolts among the negative ring pipe pieces (5), and fixedly connecting the negative ring pipe pieces (5) along the axial direction by utilizing channel steel (10) to form a negative ring pipe piece cylinder body with an integral structure;
step 2, removing a supporting reaction frame (2) at the tail part of the negative ring duct piece cylinder, and withdrawing the rear supporting plate (3) by utilizing a cross-brace oil cylinder (4) arranged between a vertical upright post (1a) and the rear supporting plate (3) in a supporting system trolley (1) to form a movable distance between the rear supporting plate (3) and the side wall of the shield tunnel (7);
step 3, fixedly connecting the rear supporting plate (3) and the negative ring duct piece cylinder into a whole by using a rigid pull rod (10a), and removing a connecting bolt between the positive ring duct piece (6) and the negative ring duct piece (5) positioned at the front end of the negative ring duct piece cylinder to release the connection between the negative ring duct piece cylinder and the positive ring duct piece (6);
step 4, pushing the rear supporting plate (3) by using a cross-brace oil cylinder (4) in a supporting system trolley (1), so that the negative ring duct piece cylinder moves along with the rear supporting plate (3) until the negative ring duct piece cylinder is separated from the positive ring duct piece (6);
step 5, the separated negative ring pipe piece cylinder is kept to be borne by the support system trolley (1), and the support system trolley (1) is utilized to transport the negative ring pipe piece cylinder to a wellhead along a trolley track in the shield tunnel (7);
and 6, integrally hoisting and transporting the negative ring pipe piece cylinder out of the well at the well mouth through ground vertical hoisting equipment, and disassembling the negative ring pipe piece on the ground to realize the integral disassembly of the assembled negative ring pipe piece of the shield method communication channel.
2. The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel according to claim 1, which is characterized in that: when the step 1 is finished, an axial pushing device is arranged between the positive ring pipe piece (6) and the adjacent negative ring pipe piece (5), and in the step 4, the axial pushing device and/or the cross-brace oil cylinder (4) are utilized to push the rear supporting plate (3), so that the negative ring pipe piece cylinder body is quickly separated from the positive ring pipe piece.
3. The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel according to claim 2, is characterized in that: the axial pushing device is a jack (9) fixedly installed on one side of the positive ring pipe piece (6) by utilizing a temporary support (8).
4. The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel according to claim 1, which is characterized in that: the number of the rigid pull rods (10a) is four, and the four rigid pull rods (10a) are uniformly distributed on the circumference of the negative ring segment cylinder.
5. The method for integrally removing the assembled negative ring pipe piece of the shield method communication channel according to claim 4, which is characterized in that: the rigid pull rod (10a) is an extension section of the channel steel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495545.9A CN109578015B (en) | 2018-12-07 | 2018-12-07 | Shield method connection channel assembled type negative ring pipe piece integral dismantling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495545.9A CN109578015B (en) | 2018-12-07 | 2018-12-07 | Shield method connection channel assembled type negative ring pipe piece integral dismantling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578015A CN109578015A (en) | 2019-04-05 |
| CN109578015B true CN109578015B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811495545.9A Active CN109578015B (en) | 2018-12-07 | 2018-12-07 | Shield method connection channel assembled type negative ring pipe piece integral dismantling method |
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| CN (1) | CN109578015B (en) |
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| CN111550271A (en) * | 2020-05-27 | 2020-08-18 | 中建八局轨道交通建设有限公司 | Method for removing shield negative ring duct piece in vertical shaft transverse passage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201650365U (en) * | 2010-01-29 | 2010-11-24 | 中铁六局集团有限公司 | Emergent air-tight door applied to communication channel construction |
| CN106948833B (en) * | 2017-04-05 | 2019-08-27 | 宁波大学 | Pin-connected panel service channel structure and its construction method |
| CN108005686A (en) * | 2018-01-12 | 2018-05-08 | 中铁上海工程局集团有限公司 | With the service channel combined steel section of jurisdiction at main tunnel connecting position and construction method |
| CN108868797B (en) * | 2018-06-29 | 2020-05-01 | 中铁工程装备集团有限公司 | Shield machine host system |
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Effective date of registration: 20210414 Address after: 200040 No. 278 Jiangchang Third Road, Jing'an District, Shanghai Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee after: NINGBO RAIL TRANSIT GROUP Co.,Ltd. Patentee after: SHANGHAI CIVIL ENGINEERING CO., LTD. OF CREC URBAN RAIL TRANSIT ENGINEERING Co. Address before: No. 272 and 278, JIANGCHANG Third Road, Jing'an District, Shanghai, 200436 Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee before: SHANGHAI CIVIL ENGINEERING CO., LTD. OF CREC URBAN RAIL TRANSIT ENGINEERING Co. |