CN111749706A - Tunnel open cut tunnel section split type lining construction method - Google Patents
Tunnel open cut tunnel section split type lining construction method Download PDFInfo
- Publication number
- CN111749706A CN111749706A CN202010660521.5A CN202010660521A CN111749706A CN 111749706 A CN111749706 A CN 111749706A CN 202010660521 A CN202010660521 A CN 202010660521A CN 111749706 A CN111749706 A CN 111749706A
- Authority
- CN
- China
- Prior art keywords
- arc
- lining
- lining block
- shaped lining
- block
- 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.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/086—Methods of making concrete lining segments
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention relates to the field of tunnel engineering, and discloses a construction method for spliced lining of a tunnel open cut tunnel section, which comprises the following steps: prefabricating a first lining base and a second lining base in a prefabrication plant; prefabricating a first arc-shaped lining block and a second arc-shaped lining block in a prefabricating field; prefabricating a connecting assembly in a prefabricating field, wherein the connecting assembly is arranged in the middle of the tops of the first arc-shaped lining block and the second arc-shaped lining block; hoisting the first lining base and the second lining base into an inverted arch of an open cut tunnel at the tunnel portal, and pouring concrete to form an inverted arch surface; the first arc-shaped lining block is installed on the first lining base, the connecting assembly is placed at the notch at the top of the first arc-shaped lining block, the second prefabricated arc-shaped lining block is installed on the second lining base, and the connecting assembly is installed between the first arc-shaped lining block and the second arc-shaped lining block. The connecting assembly increases the shear strength and stability at the joint of the first arc-shaped lining block and the second arc-shaped lining block.
Description
Technical Field
The invention relates to tunnel construction, in particular to a construction method of split type lining of a tunnel open cut tunnel section.
Background
In the excavation construction of the tunnel, a tunnel portal is excavated and formed in an open cut mode, after the portal is temporarily supported and reinforced, excavation and support construction of a tunnel body part (namely a hidden tunnel) are carried out, and after the support structure of the hidden tunnel body section is completely constructed, cast-in-place construction and concrete maintenance of a gradual change section of the portal, the open tunnel and a portal lining are carried out.
The lining of tunnel open cut tunnel section adopts the pin-connected panel construction, and the assembly of current assembled arc lining board top junction is generally spliced together through tenon fourth of the twelve earthly branches slot form, has the required precision of assembly process height, the problem that the top counterpoint is difficult to realize to the reinforcing bar of two arc lining boards of assembling is isolated each other and is not connected, causes the problem that seam department resistance to shear strength is weak and arc lining overall stability is poor.
Disclosure of Invention
The invention aims to overcome the problems of weak shear strength at the spliced lining joints and poor integral stability of arc lining in the prior art, and provides a construction method for splicing lining of a tunnel open cut tunnel section.
In order to achieve the aim, the invention provides a construction method for assembling type lining of a tunnel open cut tunnel section, which comprises the following steps: prefabricating a first lining base and a second lining base in a prefabrication plant, wherein the first lining base and the right second lining base have the same structure; prefabricating a first arc-shaped lining block and a second arc-shaped lining block in a prefabricating field, wherein the first arc-shaped lining block and the second arc-shaped lining block have the same structure; prefabricating a connecting assembly on a prefabricating field, wherein the connecting assembly is arranged in the middle of the tops of the first arc-shaped lining block and the second arc-shaped lining block; hoisting the first lining base and the second lining base to an inverted arch of an open cut tunnel at the tunnel portal, and pouring concrete to form an inverted arch surface; the first arc-shaped lining block is installed on the first lining base, the connecting assembly is placed at the notch of the top of the first arc-shaped lining block, the second prefabricated arc-shaped lining block is installed on the second lining base, and the connecting assembly is installed between the first arc-shaped lining block and the second arc-shaped lining block.
Preferably, the connecting surface of the first arc-shaped lining block and the second arc-shaped lining block is provided with a trapezoidal notch, and a rectangular notch is arranged above the first arc-shaped lining block and the second arc-shaped lining block; the connecting assembly is provided with a protrusion matched with the trapezoidal notch.
Preferably, the connecting assembly is fixed with the first arc-shaped lining block and the second arc-shaped lining block through bolts.
Preferably, the bolt hole diameter of the connecting assembly, first and second arcuate lining blocks is greater than the bolt diameter.
Preferably, a waterproof paste is pasted at the joint of the connecting assembly and the first arc-shaped lining block and the second arc-shaped lining block.
Preferably, concrete and a waterproof layer are filled above the connection part of the connection assembly and the first arc-shaped lining block and the second arc-shaped lining block.
Through above-mentioned technical scheme, installation coupling assembling between first arc lining block and second arc lining block improves coupling assembling and first arc lining block and second arc lining block's seam department shear strength, increases the stability between first arc lining block and the second arc lining block, guarantees that the overall structure of tunnel open cut tunnel section is firm.
Drawings
FIG. 1 is a schematic flow chart of a construction method for assembling type lining of a tunnel open cut tunnel section according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a split type lining of a tunnel open cut tunnel section according to an embodiment of the invention;
fig. 3 is a partially enlarged schematic view of a portion a in fig. 2 according to the embodiment of the present invention.
Description of the reference numerals
1. A first lining plinth; 2. a second lining plinth; 3. a first arcuate lining block; 4. a second arc-shaped lining block; 5. a connecting assembly; 6. a bolt; 7. waterproof sticking; 8. concrete; 9. And a waterproof layer.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless specified to the contrary, use of the directional terms "upper, lower, left, right, distal, proximal, inner and outer" generally refer to orientations or positional relationships based on those shown in the drawings, merely to facilitate the description of the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
As shown in fig. 1 to 3, the invention discloses a construction method of a spliced lining of a tunnel open cut tunnel section, which comprises the following steps:
s1: prefabricating a first lining base 1 and a second lining base 2 in a prefabrication plant, wherein the first lining base 1 and the right second lining base 2 have the same structure;
s2: prefabricating a first arc-shaped lining block 3 and a second arc-shaped lining block 4 in a prefabricating field, wherein the first arc-shaped lining block 3 and the second arc-shaped lining block 4 have the same structure;
s3: prefabricating a connecting assembly 5 in a prefabricating field, wherein the connecting assembly 5 is arranged in the middle of the tops of the first arc-shaped lining block 3 and the second arc-shaped lining block 4;
s4: hoisting the first lining base 1 and the second lining base 2 into an inverted arch of an open cut tunnel at the tunnel portal, and pouring concrete to form an inverted arch surface;
s5; the first arc-shaped lining block 3 is installed on the first lining base 1, the connecting assembly 5 is placed at the notch at the top of the first arc-shaped lining block 3, the second prefabricated arc-shaped lining block is installed on the second lining base 2, and the connecting assembly 5 is installed between the first arc-shaped lining block 3 and the second arc-shaped lining block 4.
According to the invention, the connecting component 5 is arranged between the first arc-shaped lining block 3 and the second arc-shaped lining block 4, the shear strength of the connecting component 5 and the seam between the first arc-shaped lining block 3 and the second arc-shaped lining block 4 is improved, the stability between the first arc-shaped lining block 3 and the second arc-shaped lining block 4 is increased, the integral structure of the open cut tunnel section of the tunnel is ensured to be firm, meanwhile, the connecting component 5 can also increase the accuracy of the later-installed lining block, and the connecting component 5 is matched during installation according to the shape of the connecting component 5, so that the installation of the lining blocks is more convenient.
The joint of the connecting component 5 and the first arc-shaped lining block 3 and the second arc-shaped lining block 4 is provided with a waterproof sticker 7. Waterproof paste 7 is arranged between contact surfaces of the connecting assembly 5 and the first arc-shaped lining block 3 and the second arc-shaped lining block 4 in a clamping mode, water above the connecting assembly 5 is prevented from entering gaps, the connecting assembly 5 is corroded, the first arc-shaped lining block 3 and the second arc-shaped lining block 4 guarantee the normal use of the first arc-shaped lining block 3 and the second arc-shaped lining block 4, and accidents are prevented.
The connecting surface of the first arc-shaped lining block 3 and the second arc-shaped lining block 4 is provided with a trapezoidal notch, and a rectangular notch is arranged above the first arc-shaped lining block 3 and the second arc-shaped lining block 4; the connecting assembly 5 is provided with a bulge matched with the trapezoidal notch, and the connecting assembly 5 is fixed with the first arc-shaped lining block 3 and the second arc-shaped lining block 4 through bolts 6; concrete 8 and a waterproof layer 9 are filled in the rectangular gap above the joint of the connecting assembly 5 and the first arc-shaped lining block 3 and the second arc-shaped lining block 4.
The connecting piece is arranged between the first arc-shaped lining block 3 and the second arc-shaped lining block 4, the protrusion of the connecting assembly 5 is matched with the trapezoidal notch to connect the first arc-shaped lining block 3 and the second arc-shaped lining block 4, the shearing resistance between the two lining blocks is increased, the connecting assembly 5, the first arc-shaped lining block 3 and the second arc-shaped lining block 4 are fixed together through the bolt 6 to achieve the fixing effect, after the bolt 6 is installed, the rectangular notch is packaged through the concrete 8 to further fix the joint, after the concrete 8 is solidified, a waterproof layer 9 can be laid on the concrete 8 to increase the waterproof performance, and the waterproof layer 7 can be further pasted on the joint before the concrete 8 is filled to increase the waterproof performance of the gap. Wherein the diameter of the bolt 6 hole on the connecting component 5, the first arc-shaped lining block 3 and the second arc-shaped lining block 4 is larger than the diameter of the bolt 6. It is ensured that the bolt 6 can be inserted into the bolt 6 hole and that a slight offset in the first arc-shaped lining block 3 or the second arc-shaped lining block 4 can also be inserted into the bolt 6 hole.
The connecting assembly 5, the first arc-shaped lining block 3 and the second arc-shaped lining block 4 can be fixed through welding of reinforcing steel bars, the reinforcing steel bars are reserved at one end, in contact with the first arc-shaped lining block 3 and the second arc-shaped lining block 4, of the first arc-shaped lining block 3, the connecting assembly 5 and the second arc-shaped lining block 4, and after the first arc-shaped lining block 3, the connecting assembly 5 and the second arc-shaped lining block 4 are installed, the first arc-shaped lining block 3 and the second arc-shaped lining block 4 are welded to the connecting assembly 5, and therefore the first arc-shaped lining block 3 and the second arc-shaped.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (6)
1. A construction method for assembling type lining of a tunnel open cut tunnel section is characterized by comprising the following steps:
prefabricating a first lining base (1) and a second lining base (2) in a prefabrication plant, wherein the first lining base (1) and the second lining base (2) have the same structure;
prefabricating a first arc-shaped lining block (3) and a second arc-shaped lining block (4) in a prefabricating field, wherein the first arc-shaped lining block (3) and the second arc-shaped lining block (4) have the same structure;
prefabricating a connecting assembly (5) in a prefabricating field, wherein the connecting assembly (5) is arranged in the middle of the tops of the first arc-shaped lining block (3) and the second arc-shaped lining block (4);
hoisting the first lining base (1) and the second lining base (2) into an inverted arch of an open cut tunnel at a tunnel portal, and pouring concrete to form an inverted arch surface;
the first arc-shaped lining block (3) is installed on the first lining base (1), the connecting assembly (5) is placed at a gap at the top of the first arc-shaped lining block (3), then the second prefabricated arc-shaped lining block is installed on the second lining base (2), and the connecting assembly (5) is installed between the first arc-shaped lining block (3) and the second arc-shaped lining block (4).
2. The construction method of the split type lining of the open cut tunnel section of the tunnel according to claim 1, wherein a trapezoidal notch is arranged on the connecting surface of the first arc-shaped lining block (3) and the second arc-shaped lining block (4), and a rectangular notch is arranged above the first arc-shaped lining block (3) and the second arc-shaped lining block (4); the connecting assembly (5) is provided with a protrusion matched with the trapezoid notch.
3. The construction method for assembling type lining of tunnel open cut tunnel section according to claim 1, characterized in that the connecting component (5) and the first arc-shaped lining block (3) and the second arc-shaped lining block (4) are fixed through bolts (6).
4. The assembly type lining construction method for the open cut tunnel section of the tunnel according to claim 3, wherein the hole diameter of the bolt (6) of the connecting assembly (5), the first arc-shaped lining block (3) and the second arc-shaped lining block (4) is larger than the diameter of the bolt (6).
5. The assembly type lining construction method for the open cut tunnel section of the tunnel according to claim 1, wherein a waterproof paste (7) is pasted at the joint of the connecting assembly (5) and the first arc-shaped lining block (3) and the second arc-shaped lining block (4).
6. The construction method for assembling type lining of tunnel open cut tunnel section according to claim 1, characterized in that concrete (8) and a waterproof layer (9) are filled above the joint of the connecting component (5) and the first arc-shaped lining block (3) and the second arc-shaped lining block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660521.5A CN111749706A (en) | 2020-07-10 | 2020-07-10 | Tunnel open cut tunnel section split type lining construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660521.5A CN111749706A (en) | 2020-07-10 | 2020-07-10 | Tunnel open cut tunnel section split type lining construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111749706A true CN111749706A (en) | 2020-10-09 |
Family
ID=72710758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010660521.5A Withdrawn CN111749706A (en) | 2020-07-10 | 2020-07-10 | Tunnel open cut tunnel section split type lining construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111749706A (en) |
-
2020
- 2020-07-10 CN CN202010660521.5A patent/CN111749706A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5608247B2 (en) | Wind energy equipment and tower segment for wind energy equipment | |
| JP5306922B2 (en) | Reinforced concrete column and steel beam jointing device and reinforced concrete column and steel beam joint structure | |
| JP4347500B2 (en) | Bridge girder | |
| CN110670482B (en) | Bolt connecting device between prefabricated bridge decks of assembled bridge | |
| CN214034054U (en) | Prefabricated shear wall and prefabricated coupling beam assembly node | |
| CN111749706A (en) | Tunnel open cut tunnel section split type lining construction method | |
| CN114135000A (en) | Assembled beam-column connecting joint partially wrapped with U-shaped steel and construction method thereof | |
| CN110080285A (en) | A kind of prefabricated side wall positioning connection structure of underground structure and connection method | |
| CN111749705A (en) | Hollow assembly type tunnel inverted arch structure and construction method thereof | |
| JP4363542B2 (en) | Bridge construction method | |
| JP4307109B2 (en) | Beam-column joint structure | |
| CN110029729B (en) | Splicing joint of prefabricated reinforced concrete main beam and secondary beam and construction method | |
| CN108951700B (en) | Prefabricated assembled bottom plate connected with piles, assembled structure and installation method thereof | |
| CN113882509B (en) | Prefabricated post and prefabricated beam clamping and splicing type rigid connection structure | |
| CN108755931B (en) | Large-span assembly structure connected with pile and installation method thereof | |
| CN112900278B (en) | Section concrete member bearing tension or main tension stress and connection mode thereof | |
| CN219774140U (en) | Urban underpass spliced tunnel | |
| CN214530161U (en) | Segment concrete member bearing tensile or main tensile stress | |
| CN113719155B (en) | Jig frame construction system and construction method | |
| CN212426710U (en) | Shear force key-connected prefabricated cap beam structure of assembling | |
| CN215289645U (en) | Pre-buried extension connection structure's prefabricated T type roof beam | |
| CN220579780U (en) | Connection structure of bearing platform and prefabricated pier using concave groove | |
| CN110528780B (en) | Reinforcing bar support structure for house building | |
| CN219508826U (en) | Mixed type connecting node of steel die building structure | |
| CN216381418U (en) | Reinforcing structure for junction of main line and branch line of underground excavated tunnel |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201009 |
|
| WW01 | Invention patent application withdrawn after publication |