CN110080780A - A kind of rapid constructing method for urban underground space - Google Patents
A kind of rapid constructing method for urban underground space Download PDFInfo
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- CN110080780A CN110080780A CN201910342841.3A CN201910342841A CN110080780A CN 110080780 A CN110080780 A CN 110080780A CN 201910342841 A CN201910342841 A CN 201910342841A CN 110080780 A CN110080780 A CN 110080780A
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- Prior art keywords
- ring beam
- channel
- lower support
- construction
- pilot tunnel
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Classifications
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- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- E21D11/14—Lining predominantly with metal
-
- 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
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of construction method, especially a kind of rapid constructing method for urban underground space.This method is the following steps are included: S1. open cut channel；S2. preliminary bracing is carried out in channel；S3. the construction of strengthened ring beam system is carried out in channel；S4. boring construction；S5. Second Lining Construction is carried out to transverse passage-way.Provided by the present invention for the rapid constructing method of urban underground space, before boring construction, first carry out the construction of strengthened ring beam system, can the inner wall supporting intensity in advance to channel strengthen, so as to start boring construction as early as possible, the preparation duration before shortening secondary lining, help to realize rapid construction.
Description
Technical field
The present invention relates to a kind of construction method, especially a kind of rapid constructing method for urban underground space.
Background technique
Subway construction is a ring important in Urban Underground Space Excavation.With the development of economy, each medium-and-large-sized city is equal
There is strong subway construction demand, a large amount of durations are tight, the subway construction task of task weight to produce.In subway construction process
In, the control of duration is particularly important, and subway work difficulty is big, it is more to involve between each work post, pulls one hair and move the whole body, due to
The limitation of all kinds of objective factors, usually can be relatively estimated tighter there is a situation where the construction period.
Subway tunnel excavation is carried out according to existing construction method, usually first open cut goes out channel, then carries out to channel
Second Lining Construction, then carry out boring construction, this mode expend long in time limit, often will appear duration inadequate situation.
Summary of the invention
Goal of the invention of the invention is: in subway tunnel digging process of the existing technology, expend the duration compared with
Long problem provides a kind of rapid constructing method for urban underground space.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of rapid constructing method for urban underground space, comprising the following steps: S1. open cut channel；S2. in channel
Interior carry out preliminary bracing；S3. the construction of strengthened ring beam system is carried out in channel；S4. boring construction；S5. two are carried out to transverse passage-way
Secondary lining construction.Provided by the present invention for the rapid constructing method of urban underground space, before boring construction, first added
Strong ring beam system construction, can the inner wall supporting intensity in advance to channel strengthen, so as to start boring construction as early as possible,
The preparation duration before shortening secondary lining, help to realize rapid construction.
As a preferred solution of the present invention, in step s 2, preliminary bracing structure is formed；Step S2 includes: S21. logical
Steel grating is installed in road；S22. lock foot anchor tube construction is carried out in channel；S23. the construction of shotcrete in channel.
As a preferred solution of the present invention, step S2 further include: supporting construction carries out backfill slip casting to S24. behind in the early stage,
Fill the gap between preliminary bracing structure and the soil body.
As a preferred solution of the present invention, in step s 24, slip casting is backfilled twice；When first time backfilling slip casting,
Grouting pressure is terminated with controlling slurries from excavation face spilling；In second of backfill slip casting, the range of grouting pressure control is
0.4MPa—0.6MPa。
As a preferred solution of the present invention, step S3 includes: that S31. installs lower pilot tunnel strengthened ring beam；S32., middle drift is installed
Strengthened ring beam, middle drift strengthened ring beam lower end are connected with lower pilot tunnel strengthened ring beam；S33. pilot tunnel strengthened ring beam, upper pilot tunnel are installed
Strengthened ring beam lower end is connected with middle drift strengthened ring beam upper end；S34., vault combined type pilot tunnel ring beam is installed.
As a preferred solution of the present invention, lower pilot tunnel strengthened ring beam include several first lower support elements, it is second lower several
Support member and several third lower support elements；First lower support element extends in the short transverse in channel, and the second lower support element is in channel
Length direction on extend, third lower support element extends in the width direction in channel；It is supported under second lower support element and third
Part is connected to form frame structure, and first lower support element one end is connected with the node of frame structure.
As a preferred solution of the present invention, middle drift strengthened ring beam includes propping up in supporting element and several second in several first
Support member；In step s 32, comprising the following steps: S321. abolishes middle drift bottom plate grid；S322. by supporting element in several first
It is hung in from the grid cavity abolished, is distributed supporting element in first along the short transverse of pilot tunnel, supporting element in connection first
Lower end and the first lower support element upper end；S323. pass through supporting element in second and connect supporting element in each first, make to prop up in second
Support member is vertical with supporting element in first.
As a preferred solution of the present invention, upper pilot tunnel strengthened ring beam includes several first upper supporting pieces, the second upper supporting piece；
In step S33, comprising the following steps: S331. abolishes pilot tunnel bottom plate grid；S332. by several first upper supporting pieces from
It is hung in the grid cavity abolished, is distributed the first upper supporting piece along the short transverse of pilot tunnel, in connection first under supporting element
The upper end of supporting element in end and first；S333. each first upper supporting piece is connected by the second upper supporting piece, makes the second upper supporting piece
It is vertical with the first upper supporting piece；S334. upper pilot tunnel ring beam and the soil body are connected.
As a preferred solution of the present invention, the first upper supporting piece, supporting element and the first lower support element are H-type in first
Steel；Strengthened ring beam system further includes splice plate, and the first upper supporting piece is connected with supporting element in first by splice plate, and first lower
Support member is connected with supporting element in first by splice plate.
As a preferred solution of the present invention, in step sl, comprising the following steps: S11. pre-buried dowel in channel.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Provided by the present invention for the rapid constructing method of urban underground space, before Second Lining Construction, first added
Strong ring beam system construction, can the inner wall supporting intensity in advance to channel strengthen, so as to shorten the preparation before secondary lining
Duration helps to realize rapid construction.
Detailed description of the invention
Fig. 1 is knot of the rapid constructing method provided by the invention under installation when pilot tunnel strengthened ring beam, under the first visual angle
Structure schematic diagram；
Fig. 2 is knot of the rapid constructing method provided by the invention under installation when pilot tunnel strengthened ring beam, under the second visual angle
Structure schematic diagram；
Fig. 3 be rapid constructing method provided by the invention in an installation pilot tunnel strengthened ring beam when, the knot under the first visual angle
Structure schematic diagram；
Fig. 4 be rapid constructing method provided by the invention in an installation pilot tunnel strengthened ring beam when, the knot under the second visual angle
Structure schematic diagram；
Fig. 5 is knot of the rapid constructing method provided by the invention when installing pilot tunnel strengthened ring beam, under the first visual angle
Structure schematic diagram；
Fig. 6 is knot of the rapid constructing method provided by the invention when installing pilot tunnel strengthened ring beam, under the second visual angle
Structure schematic diagram.
Icon: the first lower support element of 11-；The second lower support element of 12-；13- third lower support element；Supporting element in 21- first；
Supporting element in 22- second；The first upper supporting piece of 31-；The second upper supporting piece of 32-.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment
Please refer to Fig. 1-Fig. 3.The embodiment of the invention provides a kind of rapid constructing method for urban underground space, this
Kind of construction method is used to construct out channel in urban underground space, is particularly suitable for subway work.By taking certain subway work as an example, this
Invent provide channel rapid constructing method the following steps are included:
S1. open cut channel；S2. preliminary bracing is carried out in channel；S3. the construction of strengthened ring beam system is carried out in channel；
S4. boring construction；S5. Second Lining Construction is carried out to transverse passage-way.
Wherein, step S2 is specifically included:
S21., steel grating is installed in channel；
S22. lock foot anchor tube construction is carried out in channel；
S23. the construction of shotcrete in channel；
S24. supporting construction carries out backfill slip casting behind in the early stage, fills the gap between preliminary bracing structure and the soil body.
Step S22 the following steps are included:
The anchor tube for installing anchor head is inserted into anchor hole by S221. drilling anchor hole；
S222. anchor tube is connected with grouting pump with filling adaptor；
S223. grouting pump is opened, makes cement slurry full of anchor tube；
S224. sealing off and covering anchorage nozzle.
In step s 24, slip casting is backfilled twice；First time backfill slip casting when, grouting pressure with control slurries from
Excavation face spilling terminates；In second of backfill slip casting, the range of grouting pressure control is 0.4MPa -0.6MPa.
Step S3 includes:
S31., lower pilot tunnel strengthened ring beam is installed；
S32., middle drift strengthened ring beam is installed, middle drift strengthened ring beam lower end is connected with lower pilot tunnel strengthened ring beam；
S33. pilot tunnel strengthened ring beam is installed, upper pilot tunnel strengthened ring beam lower end is connected with middle drift strengthened ring beam upper end；
S34., vault combined type pilot tunnel ring beam is installed.
Specifically, lower pilot tunnel strengthened ring beam includes several first lower support elements 11, several second lower support elements 12 and several
Third lower support element 13；First lower support element 11 extends in the short transverse in channel, length of second lower support element 12 in channel
Degree side upwardly extends, and third lower support element 13 extends in the width direction in channel；It is supported under second lower support element 12 and third
Part 13 is connected to form frame structure, and 11 one end of the first lower support element is connected with the node of frame structure.
Further, the first lower support element 11 and the second lower support element 12 are H profile steel, and third lower support element 13 is I-shaped
Steel.
Middle drift strengthened ring beam includes supporting element 22 in supporting element 21 and several second in several first.
In step s 32, comprising the following steps: S321. abolishes middle drift bottom plate grid；S322. it will be propped up in several first
Support member 21 is hung in from the grid cavity abolished, and is distributed supporting element 21 in first along the short transverse of pilot tunnel, connection first
The upper end of the lower end of middle supporting element 21 and the first lower support element 11；S323. it is connected by supporting element 22 in second and is propped up in each first
Support member 21 keeps supporting element 22 in second vertical with supporting element 21 in first.
Supporting element 21 is H profile steel in first, and supporting element 22 is I-steel in second.
After step S323 terminates, also follow the steps below:
S324. the grid for abolishing position is connect with supporting element 21 in first, fill concrete.
Upper pilot tunnel strengthened ring beam includes several first upper supporting pieces 31 and the second upper supporting piece 32.
In step S33, comprising the following steps:
S331. pilot tunnel bottom plate grid is abolished；
S332. several first upper supporting pieces 31 are hung in from the grid cavity abolished, makes 31 edge of the first upper supporting piece
The short transverse of pilot tunnel is distributed, and connects the upper end of supporting element 21 in the lower end and first of supporting element 21 in first；
S333. each first upper supporting piece 31 is connected by the second upper supporting piece 32, made on the second upper supporting piece 32 and first
Supporting element 31 is vertical；
S334. upper pilot tunnel ring beam and the soil body are connected.
It is further comprising the steps of after step S334 completion:
S335. fill concrete.
Further, supporting element 21 and the first lower support element 11 are H profile steel in first；Strengthened ring beam system further includes spelling
Fishplate bar, the first upper supporting piece 31 are connected with supporting element 21 in first by splice plate, are supported in the first lower support element 11 and first
Part 21 is connected by splice plate.Specifically, the end that is connected with the first supporting element of the first upper supporting piece 31 is equipped with splice plate, first
Lower support element 11 also is provided with splice plate with the end that supporting element 21 is connected in first.
The two sides of supporting element 21 and the first lower support element 11, are additionally provided with deep floor in the first upper supporting piece 31, first,
Deep floor is connected with H profile steel, and in H profile steel two sides, a deep floor is arranged every 20cm-40cm.Specifically, in this implementation
In example, one deep floor is set every 30cm.
It is provided by the present invention for the beneficial effect of the rapid constructing method of urban underground space:
Before boring construction, first carry out the construction of strengthened ring beam system, can in advance the inner wall supporting intensity to channel into
Row is strengthened, and so as to start boring construction as early as possible, the preparation duration before shortening secondary lining, helps to realize rapid construction.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of rapid constructing method for urban underground space, which comprises the following steps:
S1. open cut channel；
S2. preliminary bracing is carried out in the channel；
S3. the construction of strengthened ring beam system is carried out in the channel；
S4. boring construction；
S5. Second Lining Construction is carried out to the channel.
2. the rapid constructing method according to claim 1 for urban underground space, which is characterized in that in the step
In S2, preliminary bracing structure is formed；
The step S2 includes:
S21. steel grating is installed in the channel；
S22. lock foot anchor tube construction is carried out in the channel；
S23. the construction of shotcrete in the channel.
3. the rapid constructing method according to claim 2 for urban underground space, which is characterized in that the step S2
Further include:
S24. backfill slip casting is carried out behind in the preliminary bracing structure, fill the gap between preliminary bracing structure and the soil body.
4. the rapid constructing method according to claim 3 for urban underground space, which is characterized in that in step S24
In, slip casting is backfilled twice；
When first time backfilling slip casting, grouting pressure is terminated with controlling slurries from excavation face spilling；
In second of backfill slip casting, the range of grouting pressure control is 0.4MPa -0.6MPa.
5. being used for the rapid constructing method of urban underground space according to any one of claim 2-4, feature exists
In the step S3 includes:
S31., lower pilot tunnel strengthened ring beam is installed；
S32., middle drift strengthened ring beam is installed, middle drift strengthened ring beam lower end is connected with the lower pilot tunnel strengthened ring beam；
S33. pilot tunnel strengthened ring beam, the upper pilot tunnel strengthened ring beam lower end and middle drift strengthened ring beam upper end phase are installed
Even；
S34., vault combined type pilot tunnel ring beam is installed.
6. the rapid constructing method according to claim 5 for urban underground space, which is characterized in that the lower pilot tunnel
Strengthened ring beam includes several first lower support elements, several second lower support elements and several third lower support elements；
First lower support element extends in the short transverse in the channel, length of second lower support element in the channel
Degree side upwardly extends, and the third lower support element extends in the width direction in the channel；
Second lower support element and the third lower support element are connected to form frame structure, first lower support element one end with
The node of the frame structure is connected.
7. the rapid constructing method according to claim 6 for urban underground space, which is characterized in that the middle drift
Strengthened ring beam includes supporting element in supporting element and several second in several first；
In the step S32, comprising the following steps:
S321. middle drift bottom plate grid is abolished；
S322. supporting element in several first is hung in from the grid cavity abolished, makes in first supporting element along the height of pilot tunnel
Spend directional spreding, the lower end of supporting element and the upper end of the first lower support element in connection first；
S323. pass through supporting element in second and connect supporting element in each first, make to prop up in supporting element and described first in described second
Support member is vertical.
8. the rapid constructing method according to claim 7 for urban underground space, which is characterized in that the upper pilot tunnel
Strengthened ring beam includes several first upper supporting pieces, the second upper supporting piece；
In the step S33, comprising the following steps:
S331. pilot tunnel bottom plate grid is abolished；
S332. several first upper supporting pieces are hung in from the grid cavity abolished, makes the first upper supporting piece along the height of pilot tunnel
Directional spreding is spent, the upper end of supporting element in the lower end and first of supporting element in first is connected；
S333. each first upper supporting piece is connected by the second upper supporting piece, makes to prop up on second upper supporting piece and described first
Support member is vertical；
S334. upper pilot tunnel ring beam and the soil body are connected.
9. the rapid constructing method according to claim 8 for urban underground space, which is characterized in that on described first
Supporting element, supporting element and the first lower support element are H profile steel in first；
The strengthened ring beam system further includes splice plate, and supporting element passes through splice plate in first upper supporting piece and described first
It is connected, first lower support element is connected with supporting element in described first by splice plate.
10. the rapid constructing method according to claim 1 for urban underground space, which is characterized in that in the step
In rapid S1, comprising the following steps:
S11. the pre-buried dowel in the channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342841.3A CN110080780A (en) | 2019-04-26 | 2019-04-26 | A kind of rapid constructing method for urban underground space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342841.3A CN110080780A (en) | 2019-04-26 | 2019-04-26 | A kind of rapid constructing method for urban underground space |
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| CN110080780A true CN110080780A (en) | 2019-08-02 |
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| CN201910342841.3A Pending CN110080780A (en) | 2019-04-26 | 2019-04-26 | A kind of rapid constructing method for urban underground space |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203559904U (en) * | 2013-07-09 | 2014-04-23 | 北京城建设计发展集团股份有限公司 | Reinforced supporting structure for creating horsehead on reversal borehole wall shaft well side wall |
| CN203742611U (en) * | 2013-07-08 | 2014-07-30 | 北京城建设计发展集团股份有限公司 | Strengthening supporting structure for opening ingate on side wall of tunnel under preliminary supporting condition |
| CN103993885A (en) * | 2014-05-28 | 2014-08-20 | 北京市政建设集团有限责任公司 | Construction method for underground excavation tunnel side-direction hole opening supporting system |
| CN108286266A (en) * | 2018-03-27 | 2018-07-17 | 中铁局集团第二工程有限公司 | A method of exempt to remove using object in light and dark digging in combination and builds underground structure |
| CN108625407A (en) * | 2018-06-26 | 2018-10-09 | 北京市政建设集团有限责任公司 | A kind of open-cut station tunneling segment structure waterproof method |
-
2019
- 2019-04-26 CN CN201910342841.3A patent/CN110080780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203742611U (en) * | 2013-07-08 | 2014-07-30 | 北京城建设计发展集团股份有限公司 | Strengthening supporting structure for opening ingate on side wall of tunnel under preliminary supporting condition |
| CN203559904U (en) * | 2013-07-09 | 2014-04-23 | 北京城建设计发展集团股份有限公司 | Reinforced supporting structure for creating horsehead on reversal borehole wall shaft well side wall |
| CN103993885A (en) * | 2014-05-28 | 2014-08-20 | 北京市政建设集团有限责任公司 | Construction method for underground excavation tunnel side-direction hole opening supporting system |
| CN108286266A (en) * | 2018-03-27 | 2018-07-17 | 中铁局集团第二工程有限公司 | A method of exempt to remove using object in light and dark digging in combination and builds underground structure |
| CN108625407A (en) * | 2018-06-26 | 2018-10-09 | 北京市政建设集团有限责任公司 | A kind of open-cut station tunneling segment structure waterproof method |
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Application publication date: 20190802 |