CN111749710B - Tunnel construction process - Google Patents
Tunnel construction process Download PDFInfo
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- CN111749710B CN111749710B CN202010650743.9A CN202010650743A CN111749710B CN 111749710 B CN111749710 B CN 111749710B CN 202010650743 A CN202010650743 A CN 202010650743A CN 111749710 B CN111749710 B CN 111749710B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000004746 geotextile Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- E21D11/10—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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B23/00—Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor
- E01B23/10—Shiftable tracks for heavy loads, e.g. carrying excavators
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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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)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A tunnel construction process comprises the following steps: a preparation process, a waterproof and drainage process and a pouring process; the preparation process comprises the following steps: firstly, enabling the inverted arch trolley to be in place, and carrying out matching check on the size of the trolley and the size of a tunnel; secondly, cleaning the base surface of the tunnel, and leveling by using concrete; the waterproof and drainage process comprises the following steps: firstly, laying geotextile on a base surface of a tunnel, and laying a waterproof board; then, laying a drain pipe longitudinally along the tunnel, and wrapping the longitudinal drain pipe by geotextile so that mud and sand cannot enter the drain pipe; the pouring process comprises the following steps: and performing secondary lining by using the inverted arch trolley, driving the telescopic mechanism to prop open the template for pouring, and driving the telescopic mechanism to contract so as to retract the template after pouring is completed.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a tunnel construction process.
Background
In the construction process of various mine roadways, railway and highway tunnels, water conservancy culverts, various underground projects, high-rise building foundation pits, military projects and the like in China, the tunnel inverted arch is a reverse arch structure which is arranged at the bottom of a tunnel and is used for improving the stress condition of an upper supporting structure, is one of main components of the tunnel structure, and is used for effectively transmitting the formation pressure at the upper part of the tunnel to the underground through a tunnel side wall structure or the load on a road surface and also effectively resisting the counter force transmitted from the formation at the lower part of the tunnel. The inverted arch and the secondary lining form a whole tunnel, so that the structural stability is improved. In order to realize high-efficiency mechanized construction, an inverted arch trolley is initially used.
In the practical use of the inverted arch trolley, the following problems exist:
1. the inverted arch trolley in the prior art comprises a rail, the trolley moves on the rail, however, as the height of the trolley is far larger than that of a conventional trolley and transverse adjustment operation is carried out in use, the stability between the trolley and the rail is very important, and the conventional trolley still adopts a conventional rail connection mode.
2. The inverted arch trolley in the prior art is large in size, and still needs to have certain flexibility in moving operation, so that the problem of how to select the specification of the jacking piston cylinder is difficult, and the piston cylinder with a smaller specification is still used in the prior art to adapt to the size, flexibility and installation performance.
3. The inverted arch trolley in the prior art only considers the use of the piston cylinder and does not consider the stability of the piston cylinder, and the stability of the piston cylinder needs to be considered because the trolley can be transversely adjusted and moved back and forth in use.
4. In the prior art, the base design of piston cylinder often is the problem of neglected, however the inverted arch platform truck is because bulky, and the base also must corresponding increase, does not have relevant design in stability and the economic nature prior art of how to guarantee the base.
5. The inverted arch trolley in the prior art has the problem of unbalanced gravity center because the length of a track is shorter than that of the trolley and construction processes such as tamping are needed.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: a tunnel construction process is characterized in that an inverted arch trolley is used for construction, and the inverted arch trolley comprises a portal frame, a main beam, a support screw rod, a track traveling mechanism, a track, a jacking oil cylinder assembly, a balancing weight and a template; the jacking oil cylinder assembly comprises a cylinder barrel, a piston rod, a connecting sheet, a first cylinder base, a second cylinder base, supporting legs and connecting blocks; the track comprises guide ribs, the track travelling mechanism comprises a short guide piece and a long guide piece, and the short guide piece comprises a guide round block and a guide inclined plate; the portal comprises an oblique beam, a vertical beam, a cross beam and a longitudinal beam; the construction process comprises the following steps: a preparation process, a waterproof and drainage process and a pouring process;
the preparation process comprises the following steps: firstly, enabling the inverted arch trolley to be in place, and carrying out matching check on the size of the trolley and the size of a tunnel; secondly, cleaning the base surface of the tunnel, and leveling by using concrete;
the waterproof and drainage process comprises the following steps: firstly, laying geotextile on a base surface of a tunnel, and laying a waterproof board; then, laying a drain pipe longitudinally along the tunnel, and wrapping the longitudinal drain pipe by geotextile so that mud and sand cannot enter the drain pipe;
the vertical beam is arranged above the main beam, a cross beam and a longitudinal beam are connected above the vertical beam, the oblique beam plays a role in reinforcement, and a short beam is arranged between the oblique beam and the vertical beam; the template surrounds the main beam and the portal, and a telescopic mechanism is arranged on the main beam and connected with the template; the support screw rod is positioned below one end of the main beam, and the balancing weight is positioned above the other end of the main beam;
the track traveling mechanism is arranged above the track, the guide round block is provided with a straight groove, the straight groove is matched and connected with the guide rib, the number of the guide inclined plates is two, the guide round block is positioned between the two guide inclined plates, the lower surface of each guide inclined plate is higher than the lower surface of the track, and the lower surface of the long guide part is positioned below the lower surface of the track;
the cylinder barrel is positioned above the piston rod, the connecting piece is integrally arranged below the piston rod, and the connecting piece is connected with the first cylinder seat through a connecting piece; the second cylinder base is arranged below the first cylinder base, the area of the lower surface of the first cylinder base is smaller than that of the upper surface of the second cylinder base, the middle part of the second cylinder base is provided with supporting ribs, a supporting leg is arranged below the second cylinder base, and the supporting leg is arranged on one side of the lower end of the supporting leg; the connecting block is arranged above the cylinder barrel, and the portal frame and the main beam are driven to lift through the connecting block;
the pouring process comprises the following steps: and performing secondary lining by using the inverted arch trolley, driving the telescopic mechanism to prop open the template for pouring, and driving the telescopic mechanism to contract so as to retract the template after pouring is completed.
Preferably, the track running mechanism further comprises a running wheel, and the running wheel is arranged on the upper surface of the track.
Preferably, the telescopic mechanism is a hydraulic cylinder.
Preferably, the counterweight is a concrete counterweight.
Preferably, the lower end of the long guide piece is attached to the lower end of the track.
Preferably, the lower end of the elongated guide member wraps around the lower end of the rail.
Preferably, the connecting member is a screw.
Preferably, there are four of said screws.
Preferably, the main beam is formed by connecting a plurality of rods.
Preferably, the plurality of rods comprise vertical rods, inclined rods, cross rods and longitudinal rods.
The invention has the beneficial effects that:
1. aiming at the 1 st point of the background technology, a long and short guide part matching mode is adopted, multi-point guiding improves guiding stability, long and short guiding is flexible and ensures stability, and structural difference guiding of the long and short guide parts ensures functionality and economy at the same time.
2. Aiming at the 2 nd point of the background technology, a mode that a cylinder barrel is arranged on the upper part, a piston rod is arranged on the lower part and the cylinder barrel moves is adopted, and the movement of a conventional piston cylinder is the movement of the piston rod. This application uses the cylinder to remove, has guaranteed bigger execution area to the platform truck of big volume of adaptation more has improved stability.
3. To the 3 rd point that the background art provided, through the integrative connection piece of design of piston rod, balanced when the relative cylinder seat of piston rod has rocking or slope, the rocking and the slope of the relative cylinder seat of piston rod has been avoided completely to the design of connection piece, better promotion stability.
4. To the 4 th point that the background art provided, through the design of two jar seats, first jar seat volume is less than the second jar seat, has compromise stability and economic nature simultaneously, has set up the support fin in the second jar seat simultaneously, has further compromise stability and economic nature.
5. To the 5 th point that the background art provided, set up the balancing weight, avoided because orbital length is shorter than the length of platform truck, and need have construction process such as tamping, the unbalanced problem of focus that consequently exists.
The foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a plan view of the present invention.
Fig. 2 is a three-dimensional view of the present invention.
FIG. 3 is a three-dimensional view of a lift cylinder of the present invention.
Fig. 4 is a plan view of the lift cylinder of the present invention.
Fig. 5 is a three-dimensional view of the track attachment location of the present invention.
FIG. 6 is a flow chart of the construction process of the present invention.
In the figures, the reference numerals are as follows:
1. the device comprises a portal frame 2, a main beam 3, a support screw rod 4, a surface to be excavated 5, an inverted arch 6, a track traveling mechanism 7, inverted arch filling 8, a track 9, a jacking oil cylinder 10, a balancing weight 11, a template 12, a cylinder barrel 13, a piston rod 14, a connecting piece 15, a first cylinder base 16, a supporting leg 17, a supporting leg 18, a second cylinder base 19, a connecting block 20, a guide rib 21, a short guide piece 22, a long guide piece 23, a guide round block 24, a guide inclined plate 25, an inclined beam 26, a vertical beam 27, a cross beam 28 and a longitudinal beam.
Detailed Description
As shown in the figure: a tunnel construction process is characterized in that an inverted arch trolley is used for construction, and the inverted arch trolley comprises a portal frame, a main beam, a support screw rod, a track traveling mechanism, a track, a jacking oil cylinder assembly, a balancing weight and a template; the jacking oil cylinder assembly comprises a cylinder barrel, a piston rod, a connecting sheet, a first cylinder base, a second cylinder base, supporting legs and connecting blocks; the track comprises guide ribs, the track travelling mechanism comprises a short guide piece and a long guide piece, and the short guide piece comprises a guide round block and a guide inclined plate; the portal comprises an oblique beam, a vertical beam, a cross beam and a longitudinal beam; the construction process comprises the following steps: a preparation process, a waterproof and drainage process and a pouring process;
the preparation process comprises the following steps: firstly, enabling the inverted arch trolley to be in place, and carrying out matching check on the size of the trolley and the size of a tunnel; secondly, cleaning the base surface of the tunnel, and leveling by using concrete;
the waterproof and drainage process comprises the following steps: firstly, laying geotextile on a base surface of a tunnel, and laying a waterproof board; then, laying a drain pipe longitudinally along the tunnel, and wrapping the longitudinal drain pipe by geotextile so that mud and sand cannot enter the drain pipe;
as shown in the figure: the vertical beam is arranged above the main beam, a cross beam and a longitudinal beam are connected above the vertical beam, the oblique beam plays a role in reinforcement, and a short beam is arranged between the oblique beam and the vertical beam; the template surrounds the main beam and the portal, and a telescopic mechanism is arranged on the main beam and connected with the template; the support screw rod is positioned below one end of the main beam, and the balancing weight is positioned above the other end of the main beam;
the track traveling mechanism is arranged above the track, the guide round block is provided with a straight groove, the straight groove is matched and connected with the guide rib, the number of the guide inclined plates is two, the guide round block is positioned between the two guide inclined plates, the lower surface of each guide inclined plate is higher than the lower surface of the track, and the lower surface of the long guide part is positioned below the lower surface of the track;
as shown in the figure: the cylinder barrel is positioned above the piston rod, the connecting piece is integrally arranged below the piston rod, and the connecting piece is connected with the first cylinder seat through a connecting piece; the second cylinder base is arranged below the first cylinder base, the area of the lower surface of the first cylinder base is smaller than that of the upper surface of the second cylinder base, the middle part of the second cylinder base is provided with supporting ribs, a supporting leg is arranged below the second cylinder base, and the supporting leg is arranged on one side of the lower end of the supporting leg; the connecting block is arranged above the cylinder barrel, and the portal frame and the main beam are driven to lift through the connecting block;
the pouring process comprises the following steps: and performing secondary lining by using the inverted arch trolley, driving the telescopic mechanism to prop open the template for pouring, and driving the telescopic mechanism to contract so as to retract the template after pouring is completed.
As shown in the figure: the track travelling mechanism further comprises a travelling wheel, and the travelling wheel is arranged on the upper surface of the track. The telescopic mechanism is a hydraulic cylinder. The balancing weight is a concrete balancing weight. The lower end of the long guide piece is attached to the lower end of the track. The lower end of the long guide piece wraps the lower end of the track. The connecting piece is a screw. The number of the screws is four. The main beam is formed by connecting a plurality of rods. The multiple rods comprise vertical rods, inclined rods, transverse rods and longitudinal rods.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a tunnel construction technology, utilizes inverted arch platform truck to carry out the construction, its characterized in that: the inverted arch trolley comprises a portal frame, a main beam, a support screw rod, a track traveling mechanism, a track, a jacking oil cylinder assembly, a balancing weight and a template; the jacking oil cylinder assembly comprises a cylinder barrel, a piston rod, a connecting sheet, a first cylinder base, a second cylinder base, supporting legs and connecting blocks; the track comprises guide ribs, the track travelling mechanism comprises a short guide piece and a long guide piece, and the short guide piece comprises a guide round block and a guide inclined plate; the portal comprises an oblique beam, a vertical beam, a cross beam and a longitudinal beam; the construction process comprises the following steps: a preparation process, a waterproof and drainage process and a pouring process;
the preparation process comprises the following steps: firstly, enabling the inverted arch trolley to be in place, and carrying out matching check on the size of the trolley and the size of a tunnel; secondly, cleaning the base surface of the tunnel, and leveling by using concrete;
the waterproof and drainage process comprises the following steps: firstly, laying geotextile on a base surface of a tunnel, and laying a waterproof board; then, laying a drain pipe longitudinally along the tunnel, and wrapping the longitudinal drain pipe by geotextile so that mud and sand cannot enter the drain pipe;
the vertical beam is arranged above the main beam, a cross beam and a longitudinal beam are connected above the vertical beam, the oblique beam plays a role in reinforcement, and a short beam is arranged between the oblique beam and the vertical beam; the template surrounds the main beam and the portal, and a telescopic mechanism is arranged on the main beam and connected with the template; the support screw rod is positioned below one end of the main beam, and the balancing weight is positioned above the other end of the main beam;
the track traveling mechanism is arranged above the track, the guide round block is provided with a straight groove, the straight groove is matched and connected with the guide rib, the number of the guide inclined plates is two, the guide round block is positioned between the two guide inclined plates, the lower surface of each guide inclined plate is higher than the lower surface of the track, and the lower surface of the long guide part is positioned below the lower surface of the track;
the cylinder barrel is positioned above the piston rod, the connecting piece is integrally arranged below the piston rod, and the connecting piece is connected with the first cylinder seat through a connecting piece; the second cylinder base is arranged below the first cylinder base, the area of the lower surface of the first cylinder base is smaller than that of the upper surface of the second cylinder base, the middle part of the second cylinder base is provided with supporting ribs, a supporting leg is arranged below the second cylinder base, and the supporting leg is arranged on one side of the lower end of the supporting leg; the connecting block is arranged above the cylinder barrel, and the portal frame and the main beam are driven to lift through the connecting block;
the pouring process comprises the following steps: and performing secondary lining by using the inverted arch trolley, driving the telescopic mechanism to prop open the template for pouring, and driving the telescopic mechanism to contract so as to retract the template after pouring is completed.
2. The tunnel construction process according to claim 1, wherein: the track travelling mechanism further comprises a travelling wheel, and the travelling wheel is arranged on the upper surface of the track.
3. The tunnel construction process according to claim 1, wherein: the telescopic mechanism is a hydraulic cylinder.
4. The tunnel construction process according to claim 1, wherein: the balancing weight is a concrete balancing weight.
5. The tunnel construction process according to claim 1, wherein: the lower end of the long guide piece is attached to the lower end of the track.
6. The tunnel construction process according to claim 5, wherein: the lower end of the long guide piece wraps the lower end of the track.
7. The tunnel construction process according to claim 1, wherein: the connecting piece is a screw.
8. The tunnel construction process according to claim 7, wherein: the number of the screws is four.
9. The tunnel construction process according to claim 1, wherein: the main beam is formed by connecting a plurality of rods.
10. A tunnel construction process according to claim 9, characterised in that: the multiple rods comprise vertical rods, inclined rods, transverse rods and longitudinal rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010650743.9A CN111749710B (en) | 2020-07-08 | 2020-07-08 | Tunnel construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010650743.9A CN111749710B (en) | 2020-07-08 | 2020-07-08 | Tunnel construction process |
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| Publication Number | Publication Date |
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| CN111749710A CN111749710A (en) | 2020-10-09 |
| CN111749710B true CN111749710B (en) | 2021-10-19 |
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| CN202010650743.9A Active CN111749710B (en) | 2020-07-08 | 2020-07-08 | Tunnel construction process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114934407A (en) * | 2022-05-11 | 2022-08-23 | 东方雨虹智能装备有限责任公司 | Construction method for waterproof engineering of high-speed rail |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3079197B2 (en) * | 1992-09-28 | 2000-08-21 | 株式会社間組 | Laterally movable pier and construction method using the pier |
| JP4478613B2 (en) * | 2005-05-31 | 2010-06-09 | 株式会社大林組 | Tunnel invert construction method and mobile jetty |
| CN103195450B (en) * | 2013-04-03 | 2015-08-05 | 湖南远东钢模电子科技有限责任公司 | Hydraulic pressure tunnel invert operation trolley and inverted arch construction method |
| CN206386126U (en) * | 2016-10-26 | 2017-08-08 | 中铁第五勘察设计院集团有限公司 | A kind of constructing tunnel inverted arch trestle modular upside-down mounting moving structure |
| CN106593469B (en) * | 2016-12-02 | 2018-08-31 | 中铁五局集团第一工程有限责任公司 | A kind of trolley for inverted arch construction |
| CN207194907U (en) * | 2017-06-21 | 2018-04-06 | 中铁十一局集团汉江重工有限公司 | A kind of self-propelled inverted arch arc mould trolley |
| CN207660619U (en) * | 2017-11-14 | 2018-07-27 | 中交隧道工程局有限公司 | A kind of inverted arch rapid construction door frame |
| CN207568625U (en) * | 2017-12-14 | 2018-07-03 | 中铁五局集团第一工程有限责任公司 | A kind of bidirectional adjuster for being used to adjust inverted arch template |
| CN209604029U (en) * | 2018-12-30 | 2019-11-08 | 郭德平 | A kind of railway tunnel bottom structure packaged type formwork jumbo |
| CN110617070B (en) * | 2019-10-15 | 2020-12-11 | 中铁五局集团第一工程有限责任公司 | Tunnel construction method |
| CN111022079A (en) * | 2019-12-27 | 2020-04-17 | 湖南五新模板有限公司 | Trestle type full-section inverted arch two-lining trolley equipment and construction method thereof |
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