CN110821514A - Construction method of assembled primary support structure of tunnel in water-rich area - Google Patents
Construction method of assembled primary support structure of tunnel in water-rich area Download PDFInfo
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- CN110821514A CN110821514A CN201910939537.7A CN201910939537A CN110821514A CN 110821514 A CN110821514 A CN 110821514A CN 201910939537 A CN201910939537 A CN 201910939537A CN 110821514 A CN110821514 A CN 110821514A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000010276 construction Methods 0.000 title claims abstract description 51
- 239000004567 concrete Substances 0.000 claims description 72
- 238000000034 method Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 20
- 230000008569 process Effects 0.000 description 7
- 239000011378 shotcrete Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002699 waste material Substances 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
- E21D11/08—Lining with building materials with preformed concrete slabs
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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
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—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
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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
- E21D11/14—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
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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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- 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)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a construction method of an assembled primary supporting structure of a tunnel in a water-rich area, which comprises the following steps: prefabricating a splicing block component; arranging a water drainage hole allowing water to pass through and an anchor hole penetrating through the prefabricated splicing block components; splicing the high-pressure water-rich area tunnel by using a splicing block component to form a primary supporting structure; after assembly, the anchor rod penetrates through the anchor hole and then is driven into the inner wall of the tunnel in the high-pressure water-rich area to pull the splice block members. According to the invention, the anchor holes and the water drainage holes are formed in the splice block members, the anchor rods penetrate through the anchor holes and are inserted into the tunnel rock stratum structure to pull the splice block members, the shape of the splice block members is kept stable, the shearing resistance of the splice block members is increased, and the splice block members are prevented from being extruded and dislocated by the internal pressure of the rock stratum to shear bolts; simultaneously, the water behind the primary support structure is collected and discharged through the water drainage holes, the water pressure behind the primary support structure of the tunnel in the water-rich section is reduced, and the damage to the primary support structure of the tunnel caused by the water pressure is avoided.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a construction method of an assembled primary supporting structure of a tunnel in a water-rich area.
Background
At present, the construction method of the primary support of various engineering tunnels basically comprises the following steps: assembling primary support steel frames, installing reinforcing mesh sheets, constructing foot locking anchor rods (pipes) and system anchor rods on site, and then performing site construction by adopting a concrete spraying process to obtain a primary support concrete structure layer. When the method is used for construction, the working face is in single-process operation, the operation time is long, and the construction progress is influenced; the smoothness of sprayed concrete and a steel frame protective layer are extremely difficult to control due to various factors, and the construction standard and quality are low; and the construction of the sprayed concrete has larger resilience, which causes the waste of cost; when the concrete is sprayed for operation, the environment in the hole is poor, and the health of operators is influenced; after the construction of the sprayed concrete is finished, the early-stage strength is low, and the sprayed concrete is easily damaged in subsequent construction, so that potential quality safety hazards are formed.
Particularly, in a high-pressure water-rich area, the method for constructing the primary support structure by spraying concrete on site cannot discharge water behind the primary support structure, so that a certain water pressure effect exists behind the tunnel after engineering operation, and if the water pressure is too high, the primary support structure layer can be crushed downwards.
Therefore, it is required to develop a construction method of an assembled preliminary bracing structure of a tunnel in a water-rich area, which can improve construction efficiency, drain water and pressurize water, and improve the compressive and shear resistance of the preliminary bracing.
Disclosure of Invention
It is an object of the present invention to address at least the above-mentioned deficiencies and to provide at least the advantages which will be described hereinafter.
Another object of the present invention is to provide a construction method of a fabricated preliminary bracing structure of a water-rich area tunnel capable of draining water and reducing pressure.
To achieve these objects and other advantages in accordance with the purpose of the invention, the present invention provides a construction method of an assembled preliminary bracing structure of a tunnel in a water-rich area, including:
prefabricating a splicing block component; arranging a water drainage hole allowing water to pass through and arranging a through anchor hole on the prefabricated splicing block component;
splicing the high-pressure water-rich area tunnel by using a splicing block component to form the primary supporting structure;
after assembly, an anchor rod penetrates through the anchor hole and then is driven into the inner wall of the high-pressure water-rich area tunnel to pull the splicing block members.
Set up 5cm thick water permeability concrete prefabricated component behind one's back through tunnel primary support structure, realize the passageway of permeating water behind one's back, collect the outlet that preliminary support concrete layer reserved, collect the water behind one's back with preliminary support structure through the outlet and discharge, reduce the water pressure behind one's back of rich water district tunnel primary support structure, avoid water pressure to cause the destruction of tunnel primary support structure, set up 1 ~ 3 stock through each concatenation piece component simultaneously, the stock inserts pulls concatenation piece component in the tunnel stratum structure, it is stable to keep the design of concatenation piece component, increase the shearing resistance of concatenation piece component, prevent that stratum internal pressure from will splice piece component extrusion dislocation and cut the bolt.
Preferably, the construction method of the assembled primary supporting structure of the tunnel in the water-rich area further comprises the step of finally performing tunnel backfill grouting construction.
Preferably, in the construction method of the fabricated preliminary bracing structure for a tunnel in a water-rich area, the splice block members are prefabricated by the following method:
the method comprises the following steps that firstly, sand-free concrete is poured into a block structure to obtain the water-permeable concrete prefabricated part, and connecting ribs are pre-buried in the front of the water-permeable concrete prefabricated part;
and secondly, placing the water-permeable concrete prefabricated part into a forming die to serve as a bottom layer, laying a steel bar mesh, installing an arch frame, a hole embedded part and arranging the connecting ribs in the forming die, and pouring to form a primary supporting concrete layer, wherein the water-permeable concrete prefabricated part and the primary supporting concrete layer are connected into a whole through the connecting ribs, so that the prefabricated splicing block component is obtained.
The splice block component is prefabricated in advance in the prefabrication factory, assembles section by section in the tunnel, has reduced the process quantity in the primary support structure work progress, reduces cycle time, improves the operation environment, has promoted the construction progress.
The prefabricated splicing block components are produced by factory management, the standards are uniform, the quality is controllable, after the prefabricated components are assembled, the integral smoothness is high, meanwhile, an arch frame protective layer can be strictly controlled, and the construction quality is guaranteed; the precast splicing block member concrete adopts the molded concrete, and has no resilience generated by spraying the concrete, thereby greatly saving the using amount of the concrete and reducing the construction cost; the prefabricated splicing block components are prefabricated in advance and maintained in a standardized mode, the concrete strength of the prefabricated splicing block components reaches the design requirement when the prefabricated splicing block components are assembled, and the problem that the early strength of sprayed concrete is insufficient and is easy to damage is solved.
In conclusion, the assembly type tunnel primary support structure can effectively solve the problems of large progress influence, uncontrollable quality, low standard and high cost in the current primary support construction process.
Preferably, in the construction method of the assembled preliminary bracing structure for a tunnel in a water-rich area, the mass ratio of cement, crushed stone and water in the sand-free concrete is 1: 4.53: 0.23; the water-permeable concrete prefabricated part is of a square structure with the thickness of 5 cm. The mass ratio has good water permeability.
Preferably, in the construction method of the fabricated preliminary bracing structure for a tunnel in a water-rich area, the distance between the connecting steel bars is 20cm × 20cm, the embedded depth is 5cm, and the leakage length is 15 cm.
Preferably, in the construction method of the assembled preliminary bracing structure for a tunnel in a water-rich area, the hole embedded part includes: the drainage hole, the anchor hole and the connecting bolt hole embedded part; the diameter of the drainage holes is 110 mm, and the distance between the drainage holes is 1.5 m. The connecting bolt holes are positioned at the two ends of the splicing block components and are used for splicing the splicing block components.
Preferably, in the construction method of the fabricated preliminary bracing structure for a tunnel in a water-rich area, the water-permeable concrete precast element is placed in a forming mold as a bottom layer after the strength of the water-permeable concrete precast element reaches 100%.
Preferably, in the construction method of the assembled primary supporting structure of the tunnel in the water-rich area, 1-3 anchor rods are arranged for traction on each splicing block component.
The invention at least comprises the following beneficial effects:
according to the invention, the anchor holes and the water drainage holes are formed in the splice block members, the anchor rods penetrate through the anchor holes and are inserted into the tunnel rock stratum structure to pull the splice block members, the shape of the splice block members is kept stable, the shearing resistance of the splice block members is increased, and the splice block members are prevented from being extruded and dislocated by the internal pressure of the rock stratum to shear bolts; simultaneously, the water behind the primary support structure is collected and discharged through the water drainage holes, the water pressure behind the primary support structure of the tunnel in the water-rich section is reduced, and the damage to the primary support structure of the tunnel caused by the water pressure is avoided.
The splice block component is prefabricated in advance in a prefabrication factory and spliced section by section in a tunnel, so that the number of working procedures in the construction process of a primary support structure is reduced, the cycle time is reduced, the operating environment is improved, and the construction progress is promoted.
Meanwhile, the prefabricated splicing block components are produced by factory management, the standards are unified, the quality is controllable, the overall smoothness is high after the prefabricated components are assembled, meanwhile, a reinforcing mesh protective layer can be strictly controlled, and the construction quality is guaranteed; the precast splicing block member concrete adopts the molded concrete, and has no resilience generated by spraying the concrete, thereby greatly saving the using amount of the concrete and reducing the construction cost; the prefabricated splicing block components are prefabricated in advance and maintained in a standardized mode, the concrete strength of the prefabricated splicing block components reaches the design requirement when the prefabricated splicing block components are assembled, and the problem that the early strength of sprayed concrete is insufficient and is easy to damage is solved.
Therefore, the water permeability assembly type tunnel primary support structure can effectively solve the problems of large progress influence, uncontrollable quality, low standard and high cost in the current primary support construction process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a flow frame diagram of a construction method of an assembled primary supporting structure of a tunnel in a water-rich area according to the present invention;
FIG. 2 is a schematic structural view of a splice block member according to the present invention;
fig. 3 is a schematic overall structure view of the fabricated preliminary bracing structure according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1, the flow of the construction method of the fabricated preliminary bracing structure of the tunnel in the water-rich area is as follows: construction preparation, production of a water-permeable concrete prefabricated part, pouring of a primary support concrete layer to form a splicing block member, on-site installation of the splicing block member in a tunnel, primary support foot locking anchor rods (pipes), system anchor rods (pipes), backfill grouting construction and next circulation construction. When the primary support concrete layer is poured to form the spliced block component, the laying and installation of the steel bar meshes, the installation of the steel frame arch, the arrangement and arrangement of the connecting ribs of the water-permeable concrete prefabricated component, the installation of the hole embedded part and the pouring forming are required.
As shown in fig. 2, the tile member comprises: the concrete early-stage support structure comprises a water-permeable concrete prefabricated part 1, an early-stage support concrete layer 2, a connecting rib 3, a water drainage hole 4 and a connecting bolt hole 5. The connecting ribs 3 are pre-embedded in the water-permeable concrete prefabricated part 1 and are embedded in the primary support concrete layer 2 after pouring, so that the splice block members are integrally formed, and the connecting bolt holes 5 are positioned at two ends of the splice block members.
As shown in fig. 3, the block members 6 are assembled to form an arc structure to obtain a preliminary bracing structure, and the block members 6 are connected by high-strength bolts. After the splicing block components are spliced, a tunnel lining structure 7 is built on the inner side of each splicing block component, and a tunnel inverted arch filling structure 8 is built at the bottom of the tunnel.
Example 1
A construction method of an assembled primary supporting structure of a tunnel in a water-rich area comprises the following steps:
1) and (5) manufacturing a water-permeable concrete prefabricated part. The water permeability concrete prefabricated part adopts C25 sand-free concrete, and the mass mix ratio is: cement: crushing stone: water 1: 4.53: 0.23, processing in an industrial sectional mode, wherein the size of the square block is 30-50 cm, and the thickness of the square block is 5 cm. Front surface embedding of water permeable concrete prefabricated part
The reinforcing steel bars of the 10HPB300 are used as connecting bars, the distance is 20cm multiplied by 20cm, the pre-buried depth is 5cm, the leakage length is 15cm, and the reinforcing steel bars act on and are connected with a primary support concrete layer.
2) The water-permeable concrete prefabricated component and the tunnel primary support concrete layer are combined and poured to form a splicing block component. Adopting factory centralized processingWhen the splicing block component forming die is manufactured, the template in the thickness direction of the splicing block component forming die is enlarged by 5cm, after the splicing block component die is manufactured, a water-permeable concrete prefabricated component with the strength reaching 100% is placed, the embedded steel bar side of the water-permeable concrete prefabricated component faces the direction of a primary support concrete layer, then a steel bar net piece is laid in the splicing block component forming die, an arch frame and a hole embedded part are installed, after a technician checks that the structure size and the position of the embedded part are qualified, the primary support concrete layer is poured, and the water-permeable concrete prefabricated component and the primary support concrete layer are prefabricated into a whole through connecting steel bars, so that the manufacturing of the splicing block component is completed. Preliminary bracing concrete layer bottom reservation
And the space between the drainage holes of the 110 drainage holes is 1.5m after the splicing block components are spliced, and the drainage holes are used for collecting and discharging water of the water-permeable concrete prefabricated components out of the primary supporting structure.
3) And (5) installing the splicing block components. And (4) transporting the spliced block components to a construction site by adopting transportation equipment, and splicing the spliced block components in the tunnel by adopting special machinery. The splice block components are connected through reserved bolt holes by high-strength bolts. In the splicing process of the splicing block components, the measurement group is checked on site, and the position is ensured to be accurate. And in the assembling process, the adjacent splicing block components are not allowed to have longitudinal through seams.
4) And carrying out construction operation of locking pin anchor rods (pipes), system anchor rods (pipes) and backfilling grouting of the primary support structure. After the splicing block components are installed, the locking pin anchor pipe, the system anchor pipe and the like are constructed by using a matched tool according to a design scheme through the reserved holes.
Example 2
A construction method of an assembled primary supporting structure of a tunnel in a water-rich area comprises the following steps:
prefabricating a splicing block component; arranging a water drainage hole allowing water to pass through and arranging a through anchor hole on the prefabricated splicing block component; the tile members are prefabricated by the following method:
the method comprises the following steps that firstly, sand-free concrete is poured into a block structure to obtain the water-permeable concrete prefabricated part, and connecting ribs are pre-buried in the front of the water-permeable concrete prefabricated part; the mass ratio of cement, broken stone and water in the sand-free concrete is 1: 4.53: 0.23; the water-permeable concrete prefabricated part is of a square structure with the thickness of 5 cm. The distance between the connecting steel bars is 20cm multiplied by 20cm, the pre-buried depth is 5cm, and the leakage length is 15 cm.
And secondly, after the strength of the water-permeable concrete prefabricated part reaches 100%, placing the water-permeable concrete prefabricated part into a forming die to serve as a bottom layer, then paving a steel bar net piece, installing an arch frame, a hole embedded part and arranging the connecting ribs in the forming die, and then pouring to form a primary supporting concrete layer, wherein the water-permeable concrete prefabricated part and the primary supporting concrete layer are connected into a whole through the connecting ribs, so that the prefabricated spliced block component is obtained. The hole embedded part comprises: the drainage hole, the anchor hole and the connecting bolt hole embedded part; the diameter of the drainage holes is 110 mm, and the distance between the drainage holes is 1.5 m. The connecting bolt holes are positioned at the two ends of the splicing block components and are used for splicing the splicing block components.
And step two, splicing the high-pressure water-rich area tunnel by using a splicing block component to form the primary supporting structure.
After assembly, an anchor rod penetrates through the anchor hole and then is driven into the inner wall of the high-pressure water-rich area tunnel to pull the splicing block members. And each splicing block component is provided with 1-3 anchor rods for traction.
And finally, carrying out tunnel backfill grouting construction.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art.
Claims (8)
1. A construction method of an assembled primary supporting structure of a tunnel in a water-rich area comprises the following steps:
prefabricating a splicing block component; arranging a water drainage hole allowing water to pass through and arranging a through anchor hole on the prefabricated splicing block component;
splicing the high-pressure water-rich area tunnel by using a splicing block component to form the primary supporting structure;
after assembly, an anchor rod penetrates through the anchor hole and then is driven into the inner wall of the high-pressure water-rich area tunnel to pull the splicing block members.
2. The method of constructing an assembled preliminary bracing structure for a tunnel in a water-rich area according to claim 1, further comprising a final backfill grouting construction of the tunnel.
3. The construction method of the fabricated preliminary bracing structure of the water-rich area tunnel of claim 2, wherein the block members are prefabricated by:
the method comprises the following steps that firstly, sand-free concrete is poured into a block structure to obtain the water-permeable concrete prefabricated part, and connecting ribs are pre-buried in the front of the water-permeable concrete prefabricated part;
and secondly, putting the water-permeable concrete prefabricated part into a forming die to serve as a bottom layer, laying a steel bar mesh, installing an arch frame and a hole embedded part in the forming die, and pouring to form a primary supporting concrete layer, wherein the water-permeable concrete prefabricated part and the primary supporting concrete layer are connected into a whole through the connecting ribs, so that the prefabricated splicing block part is obtained.
4. The construction method of an assembled preliminary bracing structure of a water-rich area tunnel according to claim 3, wherein the ratio of cement, crushed stone and water in the sand-free concrete is 1: 4.53: 0.23; the water-permeable concrete prefabricated part is of a square structure with the thickness of 5 cm.
5. The construction method of the fabricated preliminary bracing structure of the tunnel in the water-rich area and the preparation method thereof according to claim 4, wherein the distance between the connection bars is 20cm x 20cm, the embedded depth is 5cm, and the leakage length is 15 cm.
6. The construction method of the fabricated preliminary bracing structure of the water-rich area tunnel of claim 5, wherein the hole embedded part includes: the drainage hole, the anchor hole and the connecting bolt hole embedded part; the diameter of the drainage holes is 110 mm, and the distance between the drainage holes is 1.5 m.
7. The method for manufacturing an assembly type preliminary bracing structure for a water-rich area tunnel according to claim 6, wherein the water-permeable concrete precast elements are put into a forming mold as a bottom layer after the strength of the water-permeable concrete precast elements reaches 100%.
8. The method for preparing the construction method of the assembled preliminary bracing structure of the tunnel in the water-rich area according to claim 7, wherein 1-3 anchor rod tractions are provided for each of the block members.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910939537.7A CN110821514A (en) | 2019-09-30 | 2019-09-30 | Construction method of assembled primary support structure of tunnel in water-rich area |
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| CN201910939537.7A CN110821514A (en) | 2019-09-30 | 2019-09-30 | Construction method of assembled primary support structure of tunnel in water-rich area |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527201A (en) * | 2013-10-15 | 2014-01-22 | 中国矿业大学(北京) | Supporting device for concrete filled steel tube supports and concrete duct pieces of coal mine vertical shaft |
| CN107740700A (en) * | 2017-10-26 | 2018-02-27 | 吕连勋 | A kind of novel subway tunnel fill-type liner structure |
| CN108086994A (en) * | 2018-01-08 | 2018-05-29 | 兰州理工大学 | One kind passes through unfavourable geological tunnel set bridge underground structure and construction method |
| CN208088344U (en) * | 2018-03-29 | 2018-11-13 | 沈阳建筑大学 | With waterproof, the underground pipe gallery structure of drain function |
| CN109252874A (en) * | 2018-11-15 | 2019-01-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of Tunnel Base and its construction |
-
2019
- 2019-09-30 CN CN201910939537.7A patent/CN110821514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527201A (en) * | 2013-10-15 | 2014-01-22 | 中国矿业大学(北京) | Supporting device for concrete filled steel tube supports and concrete duct pieces of coal mine vertical shaft |
| CN107740700A (en) * | 2017-10-26 | 2018-02-27 | 吕连勋 | A kind of novel subway tunnel fill-type liner structure |
| CN108086994A (en) * | 2018-01-08 | 2018-05-29 | 兰州理工大学 | One kind passes through unfavourable geological tunnel set bridge underground structure and construction method |
| CN208088344U (en) * | 2018-03-29 | 2018-11-13 | 沈阳建筑大学 | With waterproof, the underground pipe gallery structure of drain function |
| CN109252874A (en) * | 2018-11-15 | 2019-01-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of Tunnel Base and its construction |
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