CN106837377B - Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction - Google Patents
Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction Download PDFInfo
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- CN106837377B CN106837377B CN201710271991.0A CN201710271991A CN106837377B CN 106837377 B CN106837377 B CN 106837377B CN 201710271991 A CN201710271991 A CN 201710271991A CN 106837377 B CN106837377 B CN 106837377B
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- section
- plastic strip
- jurisdiction
- ontology
- hollow plastic
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- 235000010627 Phaseolus vulgaris Nutrition 0.000 title claims abstract description 21
- 244000046052 Phaseolus vulgaris Species 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 229920003023 plastic Polymers 0.000 claims abstract description 34
- 239000004033 plastic Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 239000011440 grout Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- SNVLJLYUUXKWOJ-UHFFFAOYSA-N methylidenecarbene Chemical compound C=[C] SNVLJLYUUXKWOJ-UHFFFAOYSA-N 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 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
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of beans gravel rockfill grouting prefabricated pipe sections suitable for double-shielded TBM construction, including section of jurisdiction ontology, closed hollow plastic strip is circumferentially embedded in the ontology of section of jurisdiction, the length of hollow plastic strip and the arc length of section of jurisdiction ontology are adapted, and are spaced apart on hollow plastic strip side wall and are equipped with slurry outlet；It is bonded with closed bar shaped elasticity filling film bag on the extrados of section of jurisdiction ontology, corresponds at slurry outlet on bar shaped elasticity filling film bag side wall and is provided with slurry intake, slurry intake is sealed with corresponding slurry outlet and is connected to；Correspond at hollow plastic strip position on the intrados of section of jurisdiction ontology and be reserved with grout hole and grouting conduit disposed within, one end of grouting conduit is connected to hollow plastic strip bore seal and the other end extends except the ontology of section of jurisdiction.The invention has the advantages that prefabricated pipe section injects dilatant slurry to bar shaped elasticity filling film bag after leaving tail shield, through the grouting conduit being arranged on each section of jurisdiction ontology intrados of each ring to form closed-loop.
Description
Technical field
The present invention relates to double-shielded TBM construction prefabricated pipe sections, more particularly, to the beans gravel for being suitable for double-shielded TBM construction
Rockfill grouting prefabricated pipe section.
Background technique
Double-shielded TBM construction beans gravel backfill and grouting are to ensure that the section of jurisdiction installed does not occur after being detached from tail shield
Deformation and displacement, need to fill beans gravel in time to the annular gap between section of jurisdiction and country rock, play the role of temporary constraint to section of jurisdiction；
Cement slurry rockfill grouting is carried out again after the filling of beans gravel, and bulk beans gravel is cemented to the beans gravel adhesive bond of some strength,
And it is cemented together with section of jurisdiction and country rock, it is allowed to common stress, forms a self-stabilization structure.Therefore it is required that beans gravel backfill and
Adhesive bond after grouting must be uniformly closely knit.For the uniform density for guaranteeing adhesive bond, grouting should be filled continuously in a certain range
Note, needs to apply closed-loop in construction according to geological conditions, generally is in the milk to be formed using the continuous domain of dual slurry at present, but often
It cannot often completely enclose and spillage, grouting effect is poor.
Summary of the invention
It is an object of that present invention to provide a kind of beans gravel rockfill grouting prefabricated pipe sections suitable for double-shielded TBM construction.
To achieve the above object, the present invention takes following technical proposals:
Beans gravel rockfill grouting prefabricated pipe section of the present invention suitable for double-shielded TBM construction, including section of jurisdiction ontology, it is described
Closed hollow plastic strip, the length and the arc length phase of section of jurisdiction ontology of the hollow plastic strip are circumferentially embedded in the ontology of section of jurisdiction
It adapts to, is spaced apart on hollow plastic strip side wall and is equipped at least two slurry outlets；Correspond to hollow plastic on the extrados of section of jurisdiction ontology
It is bonded with closed bar shaped elasticity filling film bag at material strip position, corresponds to each institute on the bar shaped elasticity filling film bag side wall
It states and is provided with slurry intake at pulp hole site respectively, each slurry intake seals with corresponding slurry outlet be connected to respectively；Section of jurisdiction
Correspond at hollow plastic strip position on the intrados of ontology and is reserved with 2 ~ 3 grout holes and grouting conduit disposed within, institute
Stating one end of grouting conduit, and hollow plastic strip bore seal is connected to and the other end extends except the ontology of section of jurisdiction.
The bar shaped elasticity filling film bag is made of elastic woven material, and the green diameter of bar shaped elasticity filling film bag is
100mm, tension is 125kg/cm at 2.5 times of the elastic stretching of bar shaped elasticity filling film bag to green diameter.
The outer wall transverse shape of the hollow plastic strip is isosceles trapezoidal structure, and the bottom of the isosceles trapezoid is located at
The intrados side of the section of jurisdiction ontology；The slurry outlet being provided on hollow plastic strip side wall is circular cone type hole, is arranged described
Slurry intake on bar shaped elasticity filling film bag side wall is the conical tube to match with the pulp bore dia.
Circumferentially it is embedded in hollow plastic strip closed in the section of jurisdiction ontology, the position in the circumferential direction of section of jurisdiction ontology
It sets.
The invention has the advantages that prefabricated pipe section is after leaving tail shield, by being arranged in each section of jurisdiction ontology of each ring
Grouting conduit in cambered surface injects dilatant slurry to bar shaped elasticity filling film bag, and the bar shaped elasticity filling film bag after expansion is maximum straight
Diameter is 25cm, and volume increases by 6.25 times, to form closed-loop, the closed-loop site operation is quick, at low cost, ensure that beans gravel
The continuity of stone backfill and grouting, and can match with TBM speedy drivage, while the application of the closed-loop overcomes existing beans gravel
Stone backfill and the defect that grouting is discontinuous, quality guarantee rate is low, it is quick, safe construction excellent greatly to embody double-shielded TBM
Gesture.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the present invention looks up structural representation of Fig. 1.
Fig. 3 is the A-A of Fig. 1 to structural schematic diagram (the bar shaped elasticity filling film bag is in folded position).
Fig. 4 is the structural schematic diagram that bar shaped elasticity filling film bag is in swelling state described in Fig. 3.
Fig. 5 is the portion the I enlarged structure schematic diagram of Fig. 1.
The enclosed ring schematic diagram that Fig. 6 is made of beans gravel rockfill grouting prefabricated pipe section of the present invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figs. 1-5, the beans gravel rockfill grouting prefabricated pipe section of the present invention suitable for double-shielded TBM construction, including
Section of jurisdiction ontology 1, is circumferentially embedded with closed hollow plastic strip 2 in section of jurisdiction ontology 1, and hollow plastic strip 2 is located at section of jurisdiction ontology 1
Circumferential medium position at, the arc length of the length of hollow plastic strip 2 and section of jurisdiction ontology 1 is adapted, and the outer wall of hollow plastic strip 2 is horizontal
Section configuration is isosceles trapezoidal structure, and the 2 bottom side wall of hollow plastic strip of isosceles trapezoidal structure is located at the inner arc of section of jurisdiction ontology 1
Face side；It is spaced apart on the 2 upper bottom edge side wall of hollow plastic strip of isosceles trapezoidal structure and is equipped with three circular cone slurry outlets, section of jurisdiction ontology 1
Extrados on correspond to hollow 2 position of plastic strip at be bonded with closed bar shaped elasticity filling film bag 3, bar shaped elasticity filling film
Correspond at each circular cone pulp hole site on the side wall of bag 3 and be provided with circular cone slurry intake 4 respectively, each circular cone slurry intake 4 divides
It does not seal and is connected to corresponding circular cone slurry outlet；Correspond at hollow 2 position of plastic strip on the intrados of section of jurisdiction ontology 1 and is spaced apart
If there are three grout hole and inserting the grouting conduit 5 in it, one end of grouting conduit 5 is connected to hollow 2 bore seal of plastic strip
And the other end extends except the intrados of section of jurisdiction ontology 1.
Bar shaped elasticity filling film bag 3 is made of elastic woven material, and the green diameter of bar shaped elasticity filling film bag 3 is 100mm,
Tension is 125kg/cm when the elastic stretching of bar shaped elasticity filling film bag 3 is to 2.5 times of green diameter, it may be assumed that when bar shaped elasticity is filled out
Tension is 125kg/cm when filling the diameter expansion of film bag 3 to 2.5 times of green diameter.
Use process of the invention is summarized as follows:
Section of jurisdiction ontology 1 is first coated in three circular cone slurry outlet inner wall surfaces of hollow plastic strip 2 before TBM construction and installation
502 glue (chemical molecular formula are as follows: CH2=C (CN)-COO-C2H5), then insertion is arranged in bar shaped elasticity filling film bag 3 one by one
Bar shaped elasticity filling film bag 3 is finally circumferentially fixed on the extrados of section of jurisdiction ontology 1 by the circular cone slurry intake 4 on side wall, by
In bar shaped elasticity filling film bag 3 at this time be folded position, as shown in figure 3, to influence after avoiding bar shaped elasticity filling film bag 3 from scattering
The installation of section of jurisdiction ontology 1 is sticked to the bar shaped elasticity filling film bag 3 for closing shape is torn open on the extrados of section of jurisdiction ontology 1 by adhesive tape.
As shown in fig. 6, an endless tube piece installs after releasing tail shield, it can start to pour into bar shaped elasticity filling film bag 3
Dilatant slurry 6(dual-component polyurethane, 5-10 times of foaming materials rate, it is desirable that when volume increases by 6 ~ 10 times, intensity is not less than
1mpa), dilatant slurry 6 passes through the grouting conduit 5 being arranged on each 1 intrados of section of jurisdiction ontology and hollow plastic strip 2 to bar shaped
Dilatant slurry 6 is injected in elastic filling film bag 3, the bar shaped elasticity filling film bag 3 of each section of jurisdiction ontology 1 has been filled in 20 seconds
At, 10cm after the completion of filling thick bar shaped elasticity filling film bag 3 becomes to rouse round shape state (as shown in Figure 4), it then begins to expand,
The gap filling of 1 extrados of section of jurisdiction ontology and country rock is expired according to the gap size in 1 outside of section of jurisdiction ontology, the bar shaped bullet after expansion
Property 3 maximum gauge of filling film bag be 25cm, volume increases by 6.25 times.
Adjacent two section of jurisdiction ontologies, 1 joining place in one endless tube piece, since the both ends of bar shaped elasticity filling film bag 3 equally exist
Circumferential direction will also expand, so the end of two adjacent bar elasticity filling film bags 3 is also blocked and can mutually be squeezed in seam crossing
Tightly, that is, closed-loop is formd.After the completion of closed-loop, can start between the outside of section of jurisdiction ontology 1 of closing interannular and country rock into
The filling of row beans gravel and rockfill grouting construction.
Claims (4)
1. a kind of beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction, including section of jurisdiction ontology, it is characterised in that:
Closed hollow plastic strip, the length of the hollow plastic strip and the arc of section of jurisdiction ontology are circumferentially embedded in the section of jurisdiction ontology
It is long to be adapted, it is spaced apart on hollow plastic strip side wall and is equipped at least two slurry outlets；Correspond to sky on the extrados of section of jurisdiction ontology
It is bonded with closed bar shaped elasticity filling film bag at heart plastic strip position, corresponds on the bar shaped elasticity filling film bag side wall every
Slurry intake is provided at a pulp hole site respectively, each slurry intake seals with corresponding slurry outlet be connected to respectively；
Correspond at hollow plastic strip position on the intrados of section of jurisdiction ontology and is reserved with 2 ~ 3 grout holes and grouting disposed within is led
Pipe, one end of the grouting conduit is connected to hollow plastic strip bore seal and the other end extends except the ontology of section of jurisdiction.
2. being suitable for the beans gravel rockfill grouting prefabricated pipe section of double-shielded TBM construction according to claim 1, it is characterised in that:
The bar shaped elasticity filling film bag is made of elastic woven material, and the green diameter of bar shaped elasticity filling film bag is 100mm, bar shaped bullet
Property filling film bag elastic stretching to 2.5 times of green diameter when tension be 125kg/cm.
3. the beans gravel rockfill grouting prefabricated pipe section according to claim 1 or claim 2 suitable for double-shielded TBM construction, feature exist
In: the outer wall transverse shape of the hollow plastic strip is isosceles trapezoidal structure, and the bottom of the isosceles trapezoid is located at described
The intrados side of section of jurisdiction ontology；The slurry outlet being provided on hollow plastic strip side wall is circular cone type hole, is arranged in the bar shaped
Slurry intake on elastic filling film bag side wall is the conical tube to match with the pulp bore dia.
4. the beans gravel rockfill grouting prefabricated pipe section according to claim 1 or claim 2 suitable for double-shielded TBM construction, feature exist
In: it is circumferentially embedded in hollow plastic strip closed in the section of jurisdiction ontology, positioned at the circumferential medium position of section of jurisdiction ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271991.0A CN106837377B (en) | 2017-04-24 | 2017-04-24 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271991.0A CN106837377B (en) | 2017-04-24 | 2017-04-24 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837377A CN106837377A (en) | 2017-06-13 |
| CN106837377B true CN106837377B (en) | 2018-12-28 |
Family
ID=59142971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710271991.0A Active CN106837377B (en) | 2017-04-24 | 2017-04-24 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837377B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837377B (en) * | 2017-04-24 | 2018-12-28 | 黄河勘测规划设计有限公司 | Beans gravel rockfill grouting prefabricated pipe section suitable for double-shielded TBM construction |
| CN107191197B (en) * | 2017-06-14 | 2023-05-19 | 中铁第四勘察设计院集团有限公司 | Shield segment and construction method thereof in tunnel through mine method by shield air pushing |
| CN107587882B (en) * | 2017-08-25 | 2018-10-30 | 中国水利水电科学研究院 | A kind of double-shielded TBM section of jurisdiction form sack grouting quick supporting structure and construction method |
| CN107587883B (en) * | 2017-08-25 | 2018-10-30 | 中国水利水电科学研究院 | A kind of shield formula TBM section of jurisdiction rockfill grouting expansion type locking devices and construction method |
| CN109653753B (en) * | 2018-12-07 | 2019-11-15 | 山东大学 | A kind of shield urgency curve driving auxiliary turning construction method |
| CN111305872B (en) * | 2020-03-10 | 2020-12-01 | 天津大学 | TBM shield tunnel segment and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260894A (en) * | 1995-03-23 | 1996-10-08 | Ishikawajima Constr Materials Co Ltd | Segment with bag |
| JPH094389A (en) * | 1995-06-20 | 1997-01-07 | Ashimori Ind Co Ltd | Lining member for tunnel |
| JP2003247392A (en) * | 2002-02-26 | 2003-09-05 | Ishikawajima Constr Materials Co Ltd | Segment equipped with bag |
| JP2008138409A (en) * | 2006-11-30 | 2008-06-19 | Kumagai Gumi Co Ltd | Shield tunnel, method of joining wall body and portal of shield tunnel, and segment |
| CN106837377A (en) * | 2017-04-24 | 2017-06-13 | 黄河勘测规划设计有限公司 | It is suitable to the beans gravel rockfill grouting prefabricated pipe section of double-shielded TBM construction |
-
2017
- 2017-04-24 CN CN201710271991.0A patent/CN106837377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260894A (en) * | 1995-03-23 | 1996-10-08 | Ishikawajima Constr Materials Co Ltd | Segment with bag |
| JPH094389A (en) * | 1995-06-20 | 1997-01-07 | Ashimori Ind Co Ltd | Lining member for tunnel |
| JP2003247392A (en) * | 2002-02-26 | 2003-09-05 | Ishikawajima Constr Materials Co Ltd | Segment equipped with bag |
| JP2008138409A (en) * | 2006-11-30 | 2008-06-19 | Kumagai Gumi Co Ltd | Shield tunnel, method of joining wall body and portal of shield tunnel, and segment |
| CN106837377A (en) * | 2017-04-24 | 2017-06-13 | 黄河勘测规划设计有限公司 | It is suitable to the beans gravel rockfill grouting prefabricated pipe section of double-shielded TBM construction |
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| Publication number | Publication date |
|---|---|
| CN106837377A (en) | 2017-06-13 |
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Address after: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee before: Yellow River Engineering Consulting Co., Ltd. |
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