CN112282773A - Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum - Google Patents
Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum Download PDFInfo
- Publication number
- CN112282773A CN112282773A CN202011330650.4A CN202011330650A CN112282773A CN 112282773 A CN112282773 A CN 112282773A CN 202011330650 A CN202011330650 A CN 202011330650A CN 112282773 A CN112282773 A CN 112282773A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- slag
- water delivery
- branch
- mining
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000011435 rock Substances 0.000 title claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 35
- 238000009412 basement excavation Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 7
- 238000005065 mining Methods 0.000 claims description 28
- 239000004567 concrete Substances 0.000 claims description 12
- 230000032258 transport Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- 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
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/02—Transport of mined mineral in galleries
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a construction system and a construction method of a small-section ultra-long water delivery tunnel in a hard rock stratum. According to the invention, the mine excavation type loader, the two-way driving slag car, the car-avoiding hole and the rail transportation mode are cooperatively used, so that the slag soil on the tunnel face is quickly and efficiently transported out of the hole, the slag soil is timely transported out of the hole under the condition of quick tunnel face tunneling, the mutual influence among all working procedures is reduced, and the construction progress is guaranteed.
Description
Technical Field
The invention relates to the technical field of tunnel and underground engineering construction, in particular to a construction system and a construction method of a small-section ultra-long water delivery tunnel in a hard rock stratum.
Background
For a small-section long-distance tunnel, the construction operation space in the tunnel is narrow and small, the slag discharge distance is long, various cross working procedures in the tunnel chamber are seriously influenced mutually, and the tunnel excavation supporting technology and the selection of matched equipment have great influence on the construction progress. If the corollary equipment is not properly selected, even if the tunnel face of the tunnel can keep high-efficiency blasting construction, the corresponding slag discharging and supporting speed is not timely, and the tunneling speed of the tunnel cannot be well improved. If the drilling and blasting method is adopted in part of the sections, the construction effect is not ideal, and the excavation machinery needs to be carefully considered when the machinery excavation is adopted.
The diversion tunnel of a water delivery project is used as a support, the diversion tunnel project comprises 4 branch tunnels in the whole, the minimum gradient of each branch tunnel is 8.02%, the maximum gradient of each branch tunnel reaches 20.08%, when the reverse slope construction is carried out, the construction direction in each tunnel is a downhill slope, the sections of a main tunnel and the branch tunnels are small, large-scale excavation transport machinery cannot enter the main tunnel, and how to transport out the dregs at the tunnel face is a key factor for quick construction of the small-section ultralong tunnel.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction system and a construction method of a small-section ultra-long water-conveying tunnel in a hard rock stratum, which can efficiently convey muck at the tunnel face to the outside of the tunnel and reduce the mutual influence of various cross working procedures.
The technical scheme of the invention is as follows:
the utility model provides a little section overlength water delivery tunnel construction system of hard rock stratum, including set up the first mining excavation formula loader that is used for the tunnel face to excavate in the main tunnel of water delivery tunnel, set up the second mining excavation formula loader in main tunnel and the branch tunnel intersection department of water delivery tunnel, set up and be used for the two-way slag car that traveles of dregs transportation between first mining excavation formula loader and the second mining excavation formula loader, set up the sharp transportation track in the branch tunnel and set up the mine car on the sharp transportation track, one end of sharp transportation track is located the main tunnel of water delivery tunnel and the intersection of branch tunnel, another tip of sharp transportation track extends to the slag field outside the water delivery tunnel.
And a temporary slag field is arranged at the intersection of the main tunnel and the branch tunnel of the water delivery tunnel.
The first mining excavating type loader and the second mining excavating type loader are both selected from mining excavating type loaders with models of ZWY-180.
The two-way running slag transport vehicle has the vehicle-mounted capacity of 10m3The slag transport vehicle runs in two directions.
The construction method of the water delivery tunnel specifically comprises the following steps:
(1) before bottom plate concrete lining is carried out on a main tunnel of the water delivery tunnel, an excavator is used for leveling a road, drainage ditches are reserved on two sides, and mechanical vehicle transportation in the excavation process is facilitated;
(2) after the branch tunnel excavation is finished, performing secondary lining concrete construction in time, and providing guarantee for material transportation in the later main tunnel construction process and lining process;
(3) the main tunnel is firstly tunneled forwards in a blasting excavation mode, then the muck excavated on the tunnel face is loaded into a bidirectional driving muck truck by a first mining excavation type loader, and the muck is transported to a temporary muck field at the intersection of the main tunnel and the branch tunnel by the bidirectional driving muck truck;
(4) and the second mining excavation type loader loads the slag in the temporary slag field into the mine car in the branch hole, and the mine car transports the slag to the outside of the water transportation tunnel along the linear transportation rail in the branch hole.
And one vehicle avoiding hole is expanded and dug every 500m in the main hole and is used for personnel to avoid vehicles.
And C20 concrete is adopted for fully hardening the road surface in the branch tunnel, and the linear transportation track is laid.
The invention has the advantages that:
(1) the invention adopts a rail transportation mode in the branch tunnel, solves the problem of residue soil transportation of a small section and a large steep slope, and can play a role in transporting materials when the main tunnel is excavated;
(2) the two-way running slag car is adopted in the main tunnel, so that the problem that vehicles in the small-section tunnel are difficult to turn around is solved, and the number of main tunnel vehicle-avoiding tunnels is reduced;
(3) the branch tunnel reduces the number of car shelters arranged on the branch tunnel by adopting a rail transportation mode;
(4) the method is particularly suitable for the rapid construction of the small-section ultra-long water delivery tunnel in the hard rock stratum.
According to the invention, the mine excavation type loader, the two-way driving slag car, the car-avoiding hole and the rail transportation mode are cooperatively used, so that the slag soil on the tunnel face is quickly and efficiently transported out of the hole, the slag soil is timely transported out of the hole under the condition of quick tunnel face tunneling, the mutual influence among all working procedures is reduced, and the construction progress is guaranteed.
Drawings
FIG. 1 is a schematic structural view of a water tunnel construction system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the construction system of the hard rock stratum small-section ultra-long water delivery tunnel comprises a first mining excavation type loader 3 arranged in a main tunnel 1 of the water delivery tunnel and used for tunnel face excavation, a second mining excavation type loader 4 arranged at the intersection of the main tunnel 1 and a branch tunnel 2 of the water delivery tunnel, a two-way traveling slag car 5 arranged between the first mining excavation type loader 3 and the second mining excavation type loader 4 and used for slag soil transportation, a linear transportation rail 6 arranged in the branch tunnel 2 and a mine car 7 arranged on the linear transportation rail 6, wherein one end of the linear transportation rail 6 is located at the intersection of the main tunnel 1 and the branch tunnel 2 of the water delivery tunnel, and the other end of the linear transportation rail 6 extends to a slag field outside the water delivery tunnel.
Wherein a temporary slag field is arranged at the intersection of the main tunnel 1 and the branch tunnel 2 of the water conveying tunnel; the first mining excavation type loader 3 and the second mining excavation type loader 4 both adopt mining excavation type loaders with models of ZWY-180; the two-way running slag transport vehicle 5 has the vehicle-mounted capacity of 10m3The slag transport vehicle runs in two directions.
A construction method of a small-section ultra-long water delivery tunnel of a hard rock stratum specifically comprises the following steps:
(1) before bottom plate concrete lining is carried out on a main tunnel 1 of the water delivery tunnel, an excavator is used for leveling a road, drainage ditches are reserved on two sides, and mechanical vehicle transportation in the excavation process is facilitated;
(2) after the excavation of the branch tunnel 2 is finished, performing concrete construction for secondary lining in time, providing guarantee for material transportation in the later main tunnel 1 construction process and lining process, fully hardening the road surface in the branch tunnel 2 by adopting C20 concrete, and paving a linear transportation track 6;
(3) the main tunnel 1 is firstly tunneled forwards in a blasting excavation mode, then muck excavated on the tunnel face is loaded into a bidirectional-running muck truck by a first mining excavation type loader 3, and the muck is transported to a temporary muck field at the intersection of the main tunnel and the branch tunnel by a bidirectional-running muck truck 5;
(4) and the second mining excavation type loader 4 loads the slag in the temporary slag field into the mine car 7 in the branch hole, and the mine car 7 transports the slag out of the water transportation tunnel along the linear transportation rail 6 in the branch hole.
Wherein, every 500m in the main hole 1, a car-avoiding hole 8 is expanded and dug for people to avoid the car, and the length multiplied by the width multiplied by the height of the car-avoiding hole 8 is 5m multiplied by 3 m.
The construction process of the car-avoiding hole 8 is as follows: excavating a main tunnel and performing primary support → cutting a main tunnel arch in the range of a chamber, vertically arranging the chamber arch and adding temporary support → connecting the chamber arch into a whole → advance support of the chamber → excavating the chamber and performing primary support → binding reinforcing steel bars, erecting a mold → pouring concrete simultaneously with lining.
When the front hole excavation initial support of the vehicle-avoiding hole 8 is used for spraying concrete at the vehicle-avoiding hole range, the thickness of the sprayed concrete needs to be reduced, and later-stage hole construction is facilitated; before the car-sheltering tunnel 8 is excavated, a front tunnel primary arch frame is required to be cut and a chamber arch frame is required to be erected, all arch frames cannot be cut at one time when the front tunnel primary arch frame is cut, a section of chamber arch frame is erected and temporarily supported by cutting one beam and connecting the chamber arch frames, and the temporary support is removed after the erection of the chamber arch frame is finished; when the inner template of the car-avoiding hole 8 is processed, the template close to the direction of the main hole is processed into an arc shape, and the position of the template is strictly controlled so as to ensure that the template is closely attached to the lining trolley template and the slurry does not leak; and after the template of the car-avoiding hole 8 is erected, performing secondary lining concrete pouring construction.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a little section overlength water delivery tunnel construction system in hard rock stratum which characterized in that: the mining loader-excavating device comprises a first mining excavating loader arranged in a main tunnel of a water conveying tunnel and used for excavating a tunnel face, a second mining excavating loader arranged at the intersection of the main tunnel and a branch tunnel of the water conveying tunnel, a two-way traveling slag car arranged between the first mining excavating loader-excavating device and the second mining excavating loader and used for transporting slag and soil, a straight line conveying track arranged in the branch tunnel and a mine car arranged on the straight line conveying track, one end part of the straight line conveying track is positioned at the intersection of the main tunnel and the branch tunnel of the water conveying tunnel, and the other end part of the straight line conveying track extends to a slag field outside the water conveying tunnel.
2. The hard rock stratum small-section ultra-long water delivery tunnel construction system as claimed in claim 1, wherein: and a temporary slag field is arranged at the intersection of the main tunnel and the branch tunnel of the water delivery tunnel.
3. The hard rock stratum small-section ultra-long water delivery tunnel construction system as claimed in claim 1, wherein: the first mining excavating type loader and the second mining excavating type loader are both selected from mining excavating type loaders with models of ZWY-180.
4. The hard rock stratum small-section ultra-long water delivery tunnel construction system as claimed in claim 1, wherein: the two-way running slag transport vehicle has the vehicle-mounted capacity of 10m3The slag transport vehicle runs in two directions.
5. The construction method of the water delivery tunnel according to claim 1, characterized in that: the method specifically comprises the following steps:
(1) before bottom plate concrete lining is carried out on a main tunnel of the water delivery tunnel, an excavator is used for leveling a road, drainage ditches are reserved on two sides, and mechanical vehicle transportation in the excavation process is facilitated;
(2) after the branch tunnel excavation is finished, performing secondary lining concrete construction in time, and providing guarantee for material transportation in the later main tunnel construction process and lining process;
(3) the main tunnel is firstly tunneled forwards in a blasting excavation mode, then the muck excavated on the tunnel face is loaded into a bidirectional driving muck truck by a first mining excavation type loader, and the muck is transported to a temporary muck field at the intersection of the main tunnel and the branch tunnel by the bidirectional driving muck truck;
(4) and the second mining excavation type loader loads the slag in the temporary slag field into the mine car in the branch hole, and the mine car transports the slag to the outside of the water transportation tunnel along the linear transportation rail in the branch hole.
6. The construction method according to claim 5, wherein: and one vehicle avoiding hole is expanded and dug every 500m in the main hole and is used for personnel to avoid vehicles.
7. The construction method according to claim 5, wherein: and C20 concrete is adopted for fully hardening the road surface in the branch tunnel, and the linear transportation track is laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330650.4A CN112282773A (en) | 2020-11-24 | 2020-11-24 | Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330650.4A CN112282773A (en) | 2020-11-24 | 2020-11-24 | Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112282773A true CN112282773A (en) | 2021-01-29 |
Family
ID=74425536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011330650.4A Pending CN112282773A (en) | 2020-11-24 | 2020-11-24 | Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112282773A (en) |
-
2020
- 2020-11-24 CN CN202011330650.4A patent/CN112282773A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106369223B (en) | A kind of silt stratum pipe jacking construction method | |
| CN111236957B (en) | Mechanical pipe jacking construction process | |
| CN105201518B (en) | Disassembling method is received in a kind of major diameter slurry balance shield hole | |
| CN101775821B (en) | Device and method for vertically transporting earthwork through reverse construction method | |
| CN103874803A (en) | Method for building structures, particularly passages under operating railways or the like. | |
| CN106050243A (en) | Super-shallow-buried small-spacing large-section multi-tunnel concurrent construction method | |
| CN110259490B (en) | Subway underground excavation station construction method | |
| CN110259449B (en) | Strip filling mining method for extra-thick coal seam by means of steel mould trolley | |
| CN110486021B (en) | Construction method for converting large-section tunnel into two small-section tunnels | |
| CN108915714B (en) | One-hole double-TBM (tunnel boring machine) installing method | |
| CN105201516A (en) | Subway station body structure and four-joint-arch PBA underground excavation construction method thereof | |
| CN206175812U (en) | Powder sandy soil stratum push pipe construction structures based on steel bushing head instrument pipe | |
| CN109183841A (en) | Prefabricated piping lane assembling and construction method based on U-shaped shield machine | |
| CN205036380U (en) | Block of four encircles PBA and secretly digs subway station major structure | |
| Qiu et al. | First application of mechanized method using earth pressure balance TBM with large horseshoe-shaped cross section to loess mountain tunnel: A case study of Baicheng tunnel | |
| CN213775379U (en) | Construction system for small-section ultra-long water delivery tunnel in hard rock stratum | |
| KR20020024912A (en) | Method of construct a tunnel | |
| CN112282773A (en) | Construction system and construction method for small-section ultra-long water delivery tunnel in hard rock stratum | |
| CN211648162U (en) | A open shield structure machine system of impulse type for executing and do underground box culvert | |
| CN111577292B (en) | Double-branch road construction method for underground excavation station of local water-rich sand layer | |
| CN110374598B (en) | Method for replacing industrial square protective coal pillar by artificial ore pillar in cooperation with gangue filling | |
| CN108412515B (en) | The big component transportation resources of TBM in a kind of tunnel | |
| CN108843339B (en) | The auxiliary slip casting platform and construction method of large-scale solution cavity are passed through when existing tunnel digs | |
| CN103742173B (en) | Control is covered the method for the underground engineering construction of existing structure sedimentation | |
| CN103154434A (en) | Closed trench tunnels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hang Jian Inventor after: Wang Zhiyong Inventor after: Zhu Lin Inventor after: Liu Liang Inventor after: Wang Jian Inventor after: Cai Xiaoming Inventor before: Hang Jian Inventor before: Wang Zhiyong Inventor before: Zhu Lin Inventor before: Liu Liang Inventor before: Wang Jian Inventor before: Cai Xiaoming |