CN106121688A - A kind of shield tunnel segment bolt hole water proof structure and construction method - Google Patents
A kind of shield tunnel segment bolt hole water proof structure and construction method Download PDFInfo
- Publication number
- CN106121688A CN106121688A CN201610708866.7A CN201610708866A CN106121688A CN 106121688 A CN106121688 A CN 106121688A CN 201610708866 A CN201610708866 A CN 201610708866A CN 106121688 A CN106121688 A CN 106121688A
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- Prior art keywords
- bolt
- washer
- waterproof
- jurisdiction
- section
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 5
- 239000007767 bonding agent Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000000280 densification Methods 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 abstract description 5
- 229920001971 elastomer Polymers 0.000 description 12
- 239000005060 rubber Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004457 water analysis Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The open a kind of shield tunnel segment bolt hole water proof structure of the present invention and construction method, including the bolt washer between the bolt at bolt hole inner connection tube sheet, the bolt head at bolt and section of jurisdiction, the first waterproof washer between bolt washer and section of jurisdiction, the second waterproof washer between bolt head and bolt washer；The one side that first waterproof washer contacts with section of jurisdiction is plane, and the one side contacted with bolt washer is provided with at least one ring semi-cylindrical hill；Two end faces of the second waterproof washer are plane.The present invention can improve bolt hole waterproofing pressure, by changing waterproof washer and section of jurisdiction and the contact stress of bolt washer, thus can realize different waterproofing pressure requirements as desired to the size of regulation bolt pretightening, and have more preferable durability.
Description
Technical field
The invention belongs to tunnel water proofing technical field, specifically a kind of shield tunnel segment bolt hole water proof structure and executing
Work method.
Background technology
Shield tunnel is the structure formed by polylith prefabricated pipe section on-site consolidation, is bolted between section of jurisdiction,
In order to prevent subsoil water from leaking in tunnel from segment joint, seam crossing is provided with waterproof sealing gasket outside section of jurisdiction,
Bolt arranges hydro-expansive rubber sealing ring, and carries out filleting in inner side, in the engineering that waterproof requirement is higher, near connecing
Second waterproof sealing gasket it is also provided with inside seam.In Practical Project, due to prefabricated pipe section quality, the assembled quality of construction, close
The impact of the factors such as packing sticking Quality, outer side seal pad seepage is very difficult to avoid completely, and even in indivedual engineerings, seepage is very
Seriously.
When, after outer side seal pad generation seepage, current may enter tunnel along bolt hole, therefore bolt hole is provided with anti-
Water constructs.But from " certain crosses the percolating water analysis of causes of Shield-bored tunnels section of jurisdiction, river and Treatment process " (Chinese architecture is waterproof,
6th phase in 2015), " the shield tunnel percolating water analysis of causes and counter-measure " (urban architecture, the 8th phase in 2013) and " shield
Structure Tunnel Water Leakage processes construction technology " document such as (urban architecture, o. 11th in 2015) is it can be seen that segment bolt aperture is oozed
The phenomenon of leakage often occurs.
Waterproof all employing of duct pieces of shield tunnel link bolt hole arranges triangular-section in bolt chamfering position at present
The mode of water swelling rubber ring.Owing to diameter of bolt hole is typically bigger about 6mm than the diameter of bolt, sealing ring water-swellable is backward
In bolt hole, extrusion, owing to not having sidewise restraint, can not form the bulbs of pressure, therefore waterproof effect is very poor.It addition, hydro-expansive rubber
Material is less stable under the conditions of long period of soaking, and absorbent material easily runs off from the elastomer network of rubber, shows as long
Before and after phase or repeatedly immersion, bigger mass loss and physical property decline.The most commonly used water-swellable rubber
Expansive force can not be produced during the water-swellable that cushion rubber exists, not have a due waterproof action, and stability and durability not enough.
Summary of the invention
For problem present in background technology, the present invention propose a kind of from waterproof sealing gasket material and operation principle, close
The aspects such as packing structure, sealing gasket installation site carry out comprehensive improvement, thus solve the shield tunnel that prior art is not enough
Segment bolt hole water proof structure and construction method.
For reaching above-mentioned purpose, the shield tunnel segment bolt hole water proof structure of present invention design, including being positioned at bolt
The bolt of hole inner connection tube sheet, the bolt washer between the bolt head and section of jurisdiction of bolt, it is characterised in that: also include being positioned at
The first waterproof washer between bolt washer and section of jurisdiction, the second waterproof washer between bolt head and bolt washer；Described
The one side that first waterproof washer contacts with described section of jurisdiction is plane, and it is semicircle that the one side contacted with bolt washer is provided with at least one ring
Protruding；Two end faces of described second waterproof washer are plane.
Preferably, the internal diameter of described first waterproof washer is more than the internal diameter of bolt washer, and external diameter is not more than bolt washer
External diameter；The diameter of described semi-cylindrical hill is less than the external diameter of bolt washer more than the internal diameter of the first waterproof washer.
It is further preferred that described first waterproof washer is provided with multi-ring semi-cylindrical hill, two adjacent semi-circular projection
The difference of diameter be 10～20mm.
Preferably, described first waterproof washer uses ethylene propylene diene monomer (EPDM) material to make.
Preferably, described section of jurisdiction is provided with the stopper slot of accommodating described first waterproof washer.
It is further preferred that the degree of depth of described stopper slot is 2～4mm.
Preferably, the internal diameter of described second waterproof washer is not less than the diameter of bolt, and external diameter is less than bolt head inscribed circle diameter.
Preferably, described second waterproof washer uses neoprene or EP rubbers material.
Use the shield tunnel segment bolt hole waterproof construction side of above-mentioned shield tunnel segment bolt hole water proof structure
Method, comprises the following steps:
One) carry out stopper slot during prefabricated pipe section in the lump, use bonding agent to be glued by the first waterproof washer before going into the well in section of jurisdiction
Being attached in stopper slot, section of jurisdiction, in pasting 12 hours of installing the first waterproof washer, must not be sent down-hole assembled, and must not connect with water
Touch；
Two), during segment assembly, successively the second waterproof washer and bolt washer are set on bolt, by tools for bolts ' pretension pair
First waterproof washer and the second waterproof washer carry out densification and then play waterproof action, and can realize by adjusting bolt pretightening
The requirement of the different water pressure of opposing.
Preferably, step one) in binding agent use modified environment protection type polychloroprene tackifier, brushing binding agent on section of jurisdiction
After, cool put a period of time, when finger contact adhesion, then the stopper slot that the first waterproof washer is entirely attached on section of jurisdiction
In.
It is further preferred that the described cool time put is 10～15 minutes.
The invention has the beneficial effects as follows: 1. can improve bolt hole waterproofing pressure.The existing waterproof side of hydro-expansive rubber packing ring
Formula, can expand in bolt hole along the gap between bolt hole and bolt after meeting water due to packing ring, and expanded rubber is without constraint
In the case of can not produce the bulbs of pressure, when there being hydraulic pressure effect, do not have waterproof effect.The waterproof project that the present invention uses is
By the second waterproof washer between the first waterproof washer and bolt head and the bolt washer between section of jurisdiction and bolt washer at spiral shell
Produce compression stress under bolt pretightning force effect, thus realize the waterproof purpose of bolt hole.2. the scheme that the present invention proposes, can basis
Need to regulate the size of bolt pretightening, by changing waterproof washer and section of jurisdiction and the contact stress of bolt washer, thus real
Existing different waterproofing pressure requirement.Packing ring material the most of the present invention has more preferable durability with hydro-expansive rubber ratio.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of the present invention
Fig. 2 is the amplification explosive view in Fig. 1 at A
Fig. 3 is the front view of the present invention the first waterproof washer
Fig. 4 is the section B-B figure of Fig. 3
In figure: bolt hole 1, section of jurisdiction 2, bolt 3, bolt head 4, bolt washer the 5, first waterproof washer 6 (semi-cylindrical hill
6.1), the second waterproof washer 7.
Detailed description of the invention
Below by Fig. 1～Fig. 4 and the mode of some alternative embodiments enumerating the present invention, the technical side to the present invention
Case (including optimal technical scheme) is described in further detail, any technical characteristic in the present embodiment and any technical side
Case is all not intended to protection scope of the present invention.
As depicted in figs. 1 and 2, the shield tunnel segment bolt hole water proof structure of invention design, including being positioned at bolt hole 1
The bolt 3 of inner connection tube sheet 2, the bolt washer 5 between the bolt head 4 and section of jurisdiction 2 of bolt 3, be positioned at bolt washer 5 and pipe
The first waterproof washer 6 between sheet 2, the second waterproof washer 7 between bolt head 4 and bolt washer 5；Described first waterproof
The one side that packing ring 6 contacts with described section of jurisdiction 2 is plane, and the one side contacted with bolt washer 5 is provided with at least one ring semi-cylindrical hill
6.1；Two end faces of described second waterproof washer 7 are plane.
Again as in figure 2 it is shown, the internal diameter of described first waterproof washer 6 is more than the internal diameter of bolt washer 5, external diameter is not more than bolt
The external diameter of packing ring；The diameter of described semi-cylindrical hill 6.1 is less than the external diameter of bolt washer 5 more than the internal diameter of the first waterproof washer 6.
As shown in Figure 3 and Figure 4, described first waterproof washer 6 is provided with multi-ring semi-cylindrical hill 6.1, adjacent two and half
The difference of the diameter of circular protrusions 6.1 is 10～20mm.It is to say, be spaced apart 5 between adjacent two semi-cylindrical hills 6.1
～10mm.
Preferably, described first waterproof washer 6 uses ethylene propylene diene monomer (EPDM) material to make.
Again as in figure 2 it is shown, described section of jurisdiction 2 is provided with the stopper slot 8 of accommodating described first waterproof washer 6.Preferably, described
The degree of depth of stopper slot 8 is 2～4mm.
Again as in figure 2 it is shown, the internal diameter of described second waterproof washer 7 is not less than bolt 3 diameter, external diameter is less than in bolt head 4
Tangential circle diameter.
Preferably, described second waterproof washer 7 uses neoprene or EP rubbers material.
Use the shield tunnel segment bolt hole waterproof construction side of above-mentioned shield tunnel segment bolt hole water proof structure
Method, comprises the following steps:
One) carry out stopper slot 8 during prefabricated pipe section 2 in the lump, use bonding agent by the first waterproof washer before going into the well in section of jurisdiction 2
6 are pasted onto in stopper slot 8, and section of jurisdiction 2, in pasting 12 hours of installing the first waterproof washer, must not send down-hole assembled, and must not
Contact with water；
Two), during segment assembly 2, successively the second waterproof washer 7 and bolt washer 5 are set on bolt 3, by bolt 3
Pretension carries out densification to the first waterproof washer 6 and the second waterproof washer 7 and then plays waterproof action, and can be by adjusting bolt 3
Pretightning force realizes the requirement of the different water pressure of opposing.
Preferably, step one) in binding agent use modified environment protection type polychloroprene tackifier, brushing binding agent on section of jurisdiction 2
After, cool put 10～15 minutes, when finger contact adhesion, then the first waterproof washer 6 is entirely attached on section of jurisdiction 2 spacing
In groove 8.
Claims (10)
1. a shield tunnel segment bolt hole water proof structure, including the bolt being positioned at bolt hole (1) inner connection tube sheet (2)
(3) bolt washer (5), being positioned between the bolt head (4) of bolt (3) and section of jurisdiction (2), it is characterised in that: also include being positioned at spiral shell
The first waterproof washer (6) between bolt packing ring (5) and section of jurisdiction (2), second be positioned between bolt head (4) and bolt washer (5)
Waterproof washer (7)；The one side that described first waterproof washer (6) contacts with described section of jurisdiction (2) is plane, connects with bolt washer (5)
The one side touched is provided with at least one ring semi-cylindrical hill (6.1)；Two end faces of described second waterproof washer (7) are plane.
Shield tunnel segment bolt hole the most according to claim 1 water proof structure, it is characterised in that: described first waterproof
The internal diameter of packing ring (6) is more than the internal diameter of bolt washer (5), and external diameter is not more than the external diameter of bolt washer (5)；Described semi-cylindrical hill
(6.1) diameter is less than the external diameter of bolt washer (5) more than the internal diameter of the first waterproof washer (6).
3. according to the shield tunnel segment bolt hole water proof structure described in claim 2, it is characterised in that: described first collision mat
Circle (6) is provided with multi-ring semi-cylindrical hill (6.1), and the difference of the diameter of two adjacent semi-circular projection (6.1) is 10～20mm.
4. according to the arbitrary described shield tunnel segment bolt hole water proof structure of claims 1 to 3, it is characterised in that: described the
One waterproof washer (6) uses ethylene propylene diene monomer (EPDM) material to make.
5. according to the shield tunnel segment bolt hole water proof structure described in claim 1, it is characterised in that: on described section of jurisdiction (2)
It is provided with the stopper slot (8) of accommodating described first waterproof washer (6).
6. according to the shield tunnel segment bolt hole water proof structure described in claim 5, it is characterised in that: described stopper slot (8)
The degree of depth be 2～4mm.
7. according to the shield tunnel segment bolt hole water proof structure described in claim 1, it is characterised in that: described second collision mat
The internal diameter of circle (7) is less than bolt head (4) inscribed circle diameter not less than bolt (3) diameter, external diameter.
8. use the shield tunnel segment bolt of shield tunnel segment bolt hole water proof structure described in claim 1～7
Hole waterproof construction method, comprises the following steps:
One) carrying out stopper slot (8) during prefabricated pipe section (2) in the lump, going into the well in section of jurisdiction (2) uses bonding agent by the first collision mat before
Circle (6) is pasted onto in stopper slot (8), and section of jurisdiction (2), in pasting 12 hours of installing the first waterproof washer (6), must not send down-hole
Assembly, and must not contact with water；
Two), during segment assembly (2), successively the second waterproof washer (7) and bolt washer (5) are set on bolt (3), pass through spiral shell
Bolt pretension carries out densification to the first waterproof washer (6) and the second waterproof washer (7) and then plays waterproof action, and can be by adjusting
Bolt pretightening realizes the requirement of the different water pressure of opposing.
9. according to the shield tunnel segment bolt hole waterproof construction method described in claim 8, it is characterised in that: step one) in
Binding agent uses modified environment protection type polychloroprene tackifier, on section of jurisdiction after brushing binding agent, cool puts a period of time, treats that finger contacts
During adhesion, then in the stopper slot (8) that the first waterproof washer (6) is entirely attached on section of jurisdiction.
10. according to the shield tunnel segment bolt hole waterproof construction method described in claim 9, it is characterised in that: described cool put
Time be 10～15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708866.7A CN106121688B (en) | 2016-08-23 | 2016-08-23 | A kind of shield tunnel segment bolt hole water proof structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708866.7A CN106121688B (en) | 2016-08-23 | 2016-08-23 | A kind of shield tunnel segment bolt hole water proof structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106121688A true CN106121688A (en) | 2016-11-16 |
| CN106121688B CN106121688B (en) | 2019-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610708866.7A Active CN106121688B (en) | 2016-08-23 | 2016-08-23 | A kind of shield tunnel segment bolt hole water proof structure and construction method |
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| CN (1) | CN106121688B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593488A (en) * | 2016-11-23 | 2017-04-26 | 同济大学 | Waterproof structure for sealing high-water-pressure shield tunnel bolt hole |
| CN108194090A (en) * | 2018-01-16 | 2018-06-22 | 中铁二院工程集团有限责任公司 | A kind of rock tunnel(ling) machine and method for tunnel construction that storehouse section is laid with waterproof membrane |
| CN110805460A (en) * | 2019-10-10 | 2020-02-18 | 天津大学前沿技术研究院有限公司 | Waterproof sealing method for bolt hole of shield tunnel segment |
| CN112761683A (en) * | 2021-02-04 | 2021-05-07 | 西南交通大学 | Inclined bolt hole waterproof structure of high-water-head shield tunnel segment |
| CN112761681A (en) * | 2021-02-04 | 2021-05-07 | 西南交通大学 | Bolt hole waterproof structure of high-head shield tunnel segment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03208993A (en) * | 1990-01-11 | 1991-09-12 | Yoshitaka Masuda | Structure of segment joint |
| JPH07279596A (en) * | 1994-04-06 | 1995-10-27 | Nishikawa Rubber Co Ltd | Water swelling type annular water sealing member |
| JPH08177393A (en) * | 1994-12-22 | 1996-07-09 | Kajima Corp | Shield segment |
| JP2662943B2 (en) * | 1995-08-01 | 1997-10-15 | 大豊建設株式会社 | Waterproof and seismic joints for segments in shield tunnels |
| CN102251784A (en) * | 2011-05-30 | 2011-11-23 | 中铁第四勘察设计院集团有限公司 | Double-layer lining shield tunnel duct piece and lining superposed structure |
| CN205936665U (en) * | 2016-08-23 | 2017-02-08 | 中铁第四勘察设计院集团有限公司 | Waterproof structure of shield method tunnel segment bolt hole |
-
2016
- 2016-08-23 CN CN201610708866.7A patent/CN106121688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03208993A (en) * | 1990-01-11 | 1991-09-12 | Yoshitaka Masuda | Structure of segment joint |
| JPH07279596A (en) * | 1994-04-06 | 1995-10-27 | Nishikawa Rubber Co Ltd | Water swelling type annular water sealing member |
| JPH08177393A (en) * | 1994-12-22 | 1996-07-09 | Kajima Corp | Shield segment |
| JP2662943B2 (en) * | 1995-08-01 | 1997-10-15 | 大豊建設株式会社 | Waterproof and seismic joints for segments in shield tunnels |
| CN102251784A (en) * | 2011-05-30 | 2011-11-23 | 中铁第四勘察设计院集团有限公司 | Double-layer lining shield tunnel duct piece and lining superposed structure |
| CN205936665U (en) * | 2016-08-23 | 2017-02-08 | 中铁第四勘察设计院集团有限公司 | Waterproof structure of shield method tunnel segment bolt hole |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593488A (en) * | 2016-11-23 | 2017-04-26 | 同济大学 | Waterproof structure for sealing high-water-pressure shield tunnel bolt hole |
| CN106593488B (en) * | 2016-11-23 | 2019-07-05 | 同济大学 | A kind of high hydraulic pressure shield tunnel bolt hole hermetic water-proof structure |
| CN108194090A (en) * | 2018-01-16 | 2018-06-22 | 中铁二院工程集团有限责任公司 | A kind of rock tunnel(ling) machine and method for tunnel construction that storehouse section is laid with waterproof membrane |
| CN110805460A (en) * | 2019-10-10 | 2020-02-18 | 天津大学前沿技术研究院有限公司 | Waterproof sealing method for bolt hole of shield tunnel segment |
| CN112761683A (en) * | 2021-02-04 | 2021-05-07 | 西南交通大学 | Inclined bolt hole waterproof structure of high-water-head shield tunnel segment |
| CN112761681A (en) * | 2021-02-04 | 2021-05-07 | 西南交通大学 | Bolt hole waterproof structure of high-head shield tunnel segment |
| CN112761681B (en) * | 2021-02-04 | 2022-04-22 | 西南交通大学 | Bolt hole waterproof structure of high-head shield tunnel segment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106121688B (en) | 2019-02-26 |
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