CN110685723A - Process method for simultaneously hoisting and lowering pipe piece assembling machine and shield tail into well - Google Patents
Process method for simultaneously hoisting and lowering pipe piece assembling machine and shield tail into well Download PDFInfo
- Publication number
- CN110685723A CN110685723A CN201910978410.6A CN201910978410A CN110685723A CN 110685723 A CN110685723 A CN 110685723A CN 201910978410 A CN201910978410 A CN 201910978410A CN 110685723 A CN110685723 A CN 110685723A
- Authority
- CN
- China
- Prior art keywords
- shield tail
- segment erector
- well
- shield
- tail
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
Abstract
The invention provides a process method for simultaneously hoisting and lowering a pipe fitting assembling machine and a shield tail into a well, which comprises the following steps: hoisting the shield tail to a first given height away from the ground, and adjusting the center line of the shield tail to be parallel to the center line of the pre-excavated tunnel; hoisting the segment erector to a second given height away from the ground, and adjusting the rotation center of the segment erector to be coaxial with the center line of the shield tail; after the segment erector is embedded into the shield tail to a given embedding depth, limiting the relative position of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector to the position above a wellhead of an originating well; and synchronously hoisting the shield tail and the segment erector down to the originating well. The process method provided by the invention avoids the problem that shield tail well descending cannot be smoothly carried out due to insufficient space in the initial well after the segment erector is put into the well for assembly, and meanwhile, the shield tail and the segment erector are hoisted for well descending, so that the well descending time of the shield machine is shortened, and the well descending efficiency of the shield machine is improved.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a process method for simultaneously hoisting and lowering a pipe fitting machine and a shield tail.
Background
The shield construction is an important construction method in tunnel construction, particularly in urban subway construction, has the characteristics of not influencing urban traffic but finishing tunnel construction in cities, and has the advantages of high construction speed and one-step tunnel forming. The most critical equipment in shield construction is the shield machine, when the shield machine is used for subway tunnel construction, the shield machine needs to be sent downwards to a dug starting well, and shield tunneling can be carried out only after the shield machine reaches a preset starting position in the starting well.
When the shield machine goes into the well, because the shield machine is long, the shield machine is generally disassembled into a plurality of sections, then respectively hoisted into an originating well, and then reassembled in the originating well in order to facilitate the convenience of going into the well; after the hoisting, well descending and primary assembly of a middle shield, a front shield and a cutter head are completed by the shield tunneling machine, then the hoisting, well descending and assembly of the segment erector are needed to be carried out, and finally, the shield tail is well descended and assembled; however, in the process of the shield tunneling machine going into the well, especially in the city, under the influence of buildings, traffic, existing utility tunnels in the city, etc., the size of the excavated starting well is limited, and particularly, when the final shield tail and the segment erector go into the well, the segment erector goes into the well and is assembled, so that the underground space of the starting well is greatly reduced, and at this time, the underground space may not meet the requirement of the shield tail going into the well, so that the shield tail cannot go into the well smoothly, and therefore, a segment erector and a construction method for the shield tail going into the well are urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problem that a pipe piece assembling machine and a shield tail cannot smoothly go into a well under the condition that the size of an originating well is limited, and provides a technological method for simultaneously hoisting the pipe piece assembling machine and the shield tail to go into the well so as to quickly and effectively solve the problem.
In order to achieve the above object, an embodiment of the present invention provides a process method for simultaneously hoisting and lowering a pipe piece assembling machine and a shield tail into a well, where the process method includes the following steps: hoisting the shield tail to a first given height from the ground, and adjusting the center line of the shield tail to be parallel to the center line of the pre-excavated tunnel; hoisting the segment erector to a second given height away from the ground, and adjusting the rotation center of the segment erector to be coaxial with the central line of the shield tail; after the segment erector is embedded into the shield tail to a given embedding depth, limiting the relative position of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector to the position above a wellhead of an originating well; and synchronously hoisting the shield tail and the segment erector down to the originating well.
Specifically, a plurality of lifting lugs are welded on the shield tail and the segment erector.
Specifically, after embedding the segment erector in the shield tail to a given embedding depth, limiting the relative position of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector to the position above the wellhead of a starting well, the method comprises the following steps: determining the wellhead dimension of the originating well and the length dimension of the shield tail and the segment erector in the axial direction; determining the given embedding depth according to the wellhead size of the originating well and the length size of the shield tail and the segment erector in the axial direction; embedding the segment erector into the shield tail according to the given embedding depth; embedding a plurality of supporting blocks between the outer wall of the segment erector and the inner wall of the shield tail along the circumferential direction of the shield tail so as to limit the relative position of the segment erector and the shield tail in the radial direction; and simultaneously moving the shield tail and the segment erector to the position above the wellhead of the starting well.
Specifically, the support block is made of any one of wood, hard plastic, or hard rubber.
Specifically, the segment erector is embedded into the shield tail by adopting a chain block according to the given embedding depth.
Specifically, a crawler crane is adopted to move the shield tail and the segment erector to the position above the wellhead of the originating well.
Specifically, the process method further comprises the step of emptying articles on preset positions of the shield tail and the segment erector in the originating well before synchronously hoisting the shield tail and the segment erector down to the originating well.
The invention provides a process method for simultaneously hoisting and lowering a pipe piece assembling machine and a shield tail, which comprises the steps of hoisting the shield tail and the pipe piece assembling machine respectively, adjusting the central line of the shield tail and the rotation central line of the pipe piece assembling machine after hoisting to enable the central line of the shield tail to be coaxial with the rotation central line of the pipe piece assembling machine and to be parallel to the central line of a pre-excavated tunnel, embedding the pipe piece assembling machine into the shield tail, enabling the embedding depth of the pipe piece assembling machine into the shield tail to be a given embedding depth, limiting the relative position of the pipe piece assembling machine and the shield tail in the radial direction, namely limiting the radial direction of the pipe piece assembling machine in the shield tail not to move, simultaneously moving the pipe piece assembling machine and the shield tail above a well opening of a starting well, synchronously hoisting the pipe piece assembling machine and the shield tail down into the starting well, and accelerating the hoisting speed of the shield tail and the pipe piece assembling.
By adopting the process method for simultaneously hoisting and lowering the pipe piece assembling machine and the shield tail, the pipe piece assembling machine is embedded into the shield tail, and then the shield tail and the pipe piece assembling machine are simultaneously hoisted into the starting well, so that the problem that the well lowering of the shield tail cannot be smoothly carried out due to insufficient space in the starting well after the pipe piece assembling machine is lowered and assembled is avoided, the shield tail and the pipe piece assembling machine are hoisted and lowered into the well, the well lowering time of the shield machine is shortened, and the well lowering efficiency of the shield machine is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a process method for simultaneously hoisting and lowering a well by a pipe piece assembling machine and a shield tail according to an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment of the invention provides a process method for simultaneously hoisting and lowering a well by a pipe piece assembling machine and a shield tail, and fig. 1 is a flow chart of the process method for simultaneously hoisting and lowering the well by the pipe piece assembling machine and the shield tail, wherein the process method comprises the following steps: hoisting the shield tail to a first given height from the ground, and adjusting the center line of the shield tail to be parallel to the center line of the pre-excavated tunnel; hoisting the segment erector to a second given height away from the ground, and adjusting the rotation center of the segment erector to be coaxial with the central line of the shield tail; after the segment erector is embedded into the shield tail to a given embedding depth, limiting the relative position of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector to the position above a wellhead of an originating well; and synchronously hoisting the shield tail and the segment erector down to the originating well.
According to the pipe piece assembling machine and the shield tail simultaneous hoisting and well descending process method, after the shield tail is hoisted, the central line of the shield tail is adjusted to be parallel to the central line of the pre-excavated tunnel, the shield tail is prevented from turning over after well descending, then the hoisted pipe piece assembling machine is embedded into the shield tail, and then the pipe piece assembling machine and the shield tail are simultaneously well descending, so that the well descending time of the shield machine is saved, the problem that the shield tail cannot be smoothly descended due to insufficient space in a starting well after the pipe piece assembling machine is firstly subjected to well descending assembly due to limited starting well size is avoided, the well descending time of the shield machine is shortened, and the well descending efficiency of the shield machine is improved.
In one embodiment, the shield tail and the segment erector are respectively hoisted, the central line of the shield tail is adjusted to be parallel to the central line of the pre-excavated tunnel, the shield tail is hoisted to a first given height away from the ground, for example, the first given height is 45cm, then the segment erector is hoisted, the hoisting height of the segment erector can be determined according to the hoisting height of the shield tail, namely, the second given height is determined according to the first given height hoisted by the shield tail, after the segment erector is hoisted, the position of the segment erector is adjusted to ensure that the rotation center of the segment erector is coaxial with the central line of the shield tail, then the segment erector is embedded into the shield tail, so that the sum of the exposed length dimension of the segment erector in the axial direction of the shield tail and the length dimension of the shield tail in the axial direction of the shield tail is smaller than the dimension of a starting well in the axial direction of the shield tail, and the segment erector can be smoothly put into the starting well from a well starting well mouth, after the segment erector is embedded into the shield tail, the segment erector is limited not to move in the radial direction in the shield tail, the assembly of the subsequent segment erector after the segment erector goes into the well is facilitated, the construction safety when the segment erector and the shield tail are hoisted into the well simultaneously is ensured, then the shield tail and the segment erector are moved to the upper part of a well mouth of a starting well simultaneously, and the shield tail and the segment erector are hoisted into the starting well synchronously, so that the problem that the shield tail cannot go into the well smoothly due to the fact that the size of the starting well is limited after the segment erector goes into the well and is assembled due to insufficient space in the starting well is avoided.
In order to facilitate hoisting of the shield tail and the segment erector, specifically, a plurality of lifting lugs are welded on the shield tail and the segment erector. Before welding the lifting lugs, marking a plurality of welding positions on the shield tail and the segment erector, and then welding the lifting lugs at each welding position.
When the shield tail and the segment erector are hoisted, the shield tail and the segment erector are heavy, so that the shield tail and the segment erector can be safely hoisted, and particularly, the lifting lugs are made of low-carbon alloy steel. For example, the lifting lug is made by using the Q345b, so that the lifting lug has enough strength and the cost for manufacturing the lifting lug is low.
When embedding segment erector to the shield tail, specifically, with segment erector embedding shield tail is to given embedding degree of depth after, inject segment erector with the relative position of shield tail in radial with the shield tail, remove simultaneously the shield tail with segment erector to originating well head top, include: determining the wellhead dimension of the originating well and the length dimension of the shield tail and the segment erector in the axial direction; determining the given embedding depth according to the wellhead size of the originating well and the length size of the shield tail and the segment erector in the axial direction; embedding the segment erector into the shield tail according to the given embedding depth; embedding a plurality of supporting blocks between the outer wall of the segment erector and the inner wall of the shield tail along the circumferential direction of the shield tail so as to limit the relative position of the segment erector and the shield tail in the radial direction; and simultaneously moving the shield tail and the segment erector to the position above the wellhead of the starting well. The segment erector is embedded into the shield tail, the total length of the segment erector and the shield tail in the axial direction is shortened, the embedding depth of the segment erector is determined according to the size of the starting well and the sizes of the segment erector and the shield tail, the segment erector and the shield tail can be ensured to be simultaneously and smoothly put into the well, and the segment erector is embedded into the shield tail, the radial relative position of the segment erector and the shield tail is defined, and then the segment erector and the shield tail are put into the well, namely, the position of the segment erector in the shield tail is determined before the segment erector and the shield tail are put into the well and then reach the preset position, the shield tail and the segment erector are assembled with the corresponding shield machine components, so that the step that the shield tail is assembled with the corresponding components on the shield machine after the position relation between the shield tail and the segment erector needs to be determined after the shield tail is put into the well independently is avoided, and the time for putting the shield machine into the well and assembling the shield machine is greatly saved.
In one embodiment, the support block is made of any one of wood, hard plastic or hard rubber, in particular, in order to limit movement of the pig erector in the radial direction of the tail end.
In one embodiment, to facilitate insertion of the segment erector into the shield tail and to be able to lower the shield tail and segment erector into the originating well, the segment erector is specifically inserted into the shield tail using a chain block according to the given insertion depth. Specifically, a crawler crane is adopted to move the shield tail and the segment erector to the position above the wellhead of the originating well.
Before the shield tail and the segment erector are put into the well, in order to ensure that enough space is available in the originating well to meet the size requirement of the segment erector and the segment erector simultaneously put into the well, specifically, before the shield tail and the segment erector are synchronously lifted down into the originating well, articles on preset positions of the shield tail and the segment erector in the originating well are emptied.
In one embodiment, during the process of descending the shield machine into the well, the components of the shield machine are separated and then hung into the starting well one by one and then assembled, after the middle shield, the front shield and the cutter head in the shield machine are descended into the well, before the shield tail and the segment erector are synchronously hung into the starting well, the components of the shield machine which are assembled in the starting well are moved towards the tunneling direction of the pre-excavated tunnel, namely, the shield tail and the articles hung on the preset position in the starting well by the segment erector are emptied, and the shield tail and the segment erector can be placed on the preset position after descending the well.
The invention provides a process method for simultaneously hoisting and lowering a pipe piece assembling machine and a shield tail, which comprises the steps of hoisting the shield tail and the pipe piece assembling machine respectively, adjusting the central line of the shield tail and the rotation central line of the pipe piece assembling machine after hoisting to enable the central line of the shield tail to be coaxial with the rotation central line of the pipe piece assembling machine and to be parallel to the central line of a pre-excavated tunnel, embedding the pipe piece assembling machine into the shield tail, enabling the embedding depth of the pipe piece assembling machine into the shield tail to be a given embedding depth, limiting the relative position of the pipe piece assembling machine and the shield tail in the radial direction, namely limiting the radial direction of the pipe piece assembling machine in the shield tail not to move, simultaneously moving the pipe piece assembling machine and the shield tail above a well opening of a starting well, synchronously hoisting the pipe piece assembling machine and the shield tail down into the starting well, and accelerating the hoisting speed of the shield tail and the pipe piece assembling.
By adopting the process method for simultaneously hoisting and lowering the pipe piece assembling machine and the shield tail, the pipe piece assembling machine is embedded into the shield tail, and then the shield tail and the pipe piece assembling machine are simultaneously hoisted into the starting well, so that the problem that the well lowering of the shield tail cannot be smoothly carried out due to insufficient space in the starting well after the pipe piece assembling machine is lowered and assembled is avoided, the shield tail and the pipe piece assembling machine are hoisted and lowered into the well, the well lowering time of the shield machine is shortened, and the well lowering efficiency of the shield machine is improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. A process method for simultaneously hoisting and lowering a well by a pipe piece assembling machine and a shield tail is characterized by comprising the following steps:
hoisting the shield tail to a first given height from the ground, and adjusting the center line of the shield tail to be parallel to the center line of the pre-excavated tunnel;
hoisting the segment erector to a second given height away from the ground, and adjusting the rotation center of the segment erector to be coaxial with the central line of the shield tail;
after the segment erector is embedded into the shield tail to a given embedding depth, limiting the relative position of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector to the position above a wellhead of an originating well;
and synchronously hoisting the shield tail and the segment erector down to the originating well.
2. The process of claim 1, wherein a plurality of lifting lugs are welded to the shield tail and the segment erector.
3. The process of claim 1, wherein after inserting the segment erector into the shield tail to a given insertion depth, defining the relative positions of the segment erector and the shield tail in the radial direction, and simultaneously moving the shield tail and the segment erector above a wellhead of a well from which the well originated, comprises:
determining the wellhead dimension of the originating well and the length dimension of the shield tail and the segment erector in the axial direction;
determining the given embedding depth according to the wellhead size of the originating well and the length size of the shield tail and the segment erector in the axial direction;
embedding the segment erector into the shield tail according to the given embedding depth;
embedding a plurality of supporting blocks between the outer wall of the segment erector and the inner wall of the shield tail along the circumferential direction of the shield tail so as to limit the relative position of the segment erector and the shield tail in the radial direction;
and simultaneously moving the shield tail and the segment erector to the position above the wellhead of the starting well.
4. A process according to claim 3 wherein the support block is made of any one of wood, hard plastics or hard rubber.
5. The process of claim 3, wherein the segment erector is inserted into the shield tail using a chain block according to the given insertion depth.
6. The process of claim 3, wherein a crawler crane is used to move the shield tail and the segment erector above the wellhead of the originating well.
7. The process of claim 1, further comprising emptying the originating well of items in predetermined positions of the tail and the segment erector before simultaneously lowering the tail and the segment erector into the originating well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978410.6A CN110685723A (en) | 2019-10-15 | 2019-10-15 | Process method for simultaneously hoisting and lowering pipe piece assembling machine and shield tail into well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978410.6A CN110685723A (en) | 2019-10-15 | 2019-10-15 | Process method for simultaneously hoisting and lowering pipe piece assembling machine and shield tail into well |
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| CN110685723A true CN110685723A (en) | 2020-01-14 |
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|---|---|---|---|
| CN201910978410.6A Pending CN110685723A (en) | 2019-10-15 | 2019-10-15 | Process method for simultaneously hoisting and lowering pipe piece assembling machine and shield tail into well |
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| CN106930772A (en) * | 2017-05-11 | 2017-07-07 | 北京市政建设集团有限责任公司 | One kind is based on the lateral separate launching construction method of mining sectbn shield, constructing structure and construction equipment |
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| CN107989624A (en) * | 2017-11-29 | 2018-05-04 | 中国葛洲坝集团基础工程有限公司 | Quickly peace tears hanging method open to a kind of shield machine center steering formula assembling machine with tail shield |
| CN108275573A (en) * | 2018-01-30 | 2018-07-13 | 中铁二十二局集团第工程有限公司 | The construction method for hanging and lifting translation unit equipment of rock tunnel(ling) machine |
| CN109008543A (en) * | 2018-07-25 | 2018-12-18 | 郑锦锦 | A kind of tubular mark's coaster cup device of overturning-preventing |
| CN110080794A (en) * | 2019-04-25 | 2019-08-02 | 中国电建集团铁路建设有限公司 | A kind of present low gas tunnel large-diameter shield fission is gone into the well construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH611382A5 (en) * | 1975-12-20 | 1979-05-31 | Gewerk Eisenhuette Westfalia | Shield tunnelling apparatus for smaller diameters |
| CN202745111U (en) * | 2012-08-14 | 2013-02-20 | 宁波万冠精密铸造厂 | Composite structure of excavator tooth holder and excavator bucket tooth |
| CN203484180U (en) * | 2013-10-12 | 2014-03-19 | 陕西理工学院 | Portable test-tube rack |
| CN103711499A (en) * | 2014-01-08 | 2014-04-09 | 中铁十三局集团第六工程有限公司 | Shield tunneling machine split starting construction method |
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| CN106930772A (en) * | 2017-05-11 | 2017-07-07 | 北京市政建设集团有限责任公司 | One kind is based on the lateral separate launching construction method of mining sectbn shield, constructing structure and construction equipment |
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| CN109008543A (en) * | 2018-07-25 | 2018-12-18 | 郑锦锦 | A kind of tubular mark's coaster cup device of overturning-preventing |
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