CN107060818A - A kind of combined type TBM synchronous grouting materials and grouting method - Google Patents
A kind of combined type TBM synchronous grouting materials and grouting method Download PDFInfo
- Publication number
- CN107060818A CN107060818A CN201710018199.4A CN201710018199A CN107060818A CN 107060818 A CN107060818 A CN 107060818A CN 201710018199 A CN201710018199 A CN 201710018199A CN 107060818 A CN107060818 A CN 107060818A
- Authority
- CN
- China
- Prior art keywords
- combined type
- type tbm
- synchronous grouting
- accelerator
- slurries
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- E21D11/10—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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
-
- 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
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
Abstract
The invention discloses a kind of combined type TBM synchronous grouting materials and grouting method, its drip irrigation device is：The injecting paste material is made up of following components by weight percent raw material：Cement 7 15.3%, sand 35 47%, flyash 10 16%, swelled ground 2.9 3%, accelerator 0.7 4%, water surplus.A kind of combined type TBM synchronous grouting materials of the present invention, significantly shorten setting time, overcome the not enough problem of slip casting, improve operating efficiency, it is ensured that construction quality.
Description
【Technical field】
The present invention relates to combined type TBM synchronization jobs, and in particular to a kind of combined type TBM synchronous grouting materials and slip casting side
Method.
【Background technology】
Shield machine type is single circle combined type TBM, and maximum digging diameter is 6885mm, due to transit tunnel country rock self-stability
Well, excavation face need not strengthen support, be tunneled using its open mode, and lining segment is using leading to that high-precision punching block makes
,, will between section of jurisdiction and shield tail housing between section of jurisdiction and stratum after shield machine is tunneled with the wedge-shaped reinforced concrete segment of lining cutting
In the presence of certain annular space, for control stratum deformation, sedimentation is reduced, and is conducive to improving tunnel impermeability and pipe-plate lining
Early stage stability, it is necessary in time after the wall of section of jurisdiction radial clearance slurries, as synchronous grouting are filled by the way of slip casting.
In the construction of urban ring road Tunnel Engineering, because traffic above-ground is busy, underground utilities are intensive, and major control along the line is built
(structure), which builds thing, two river spring city houses selling offices and skyscraper etc..Interval engineering geology mainly belongs to tectonic denudation hills slope landforms,
Present situation hypsography is smaller, and physical features is gentle, and stratum is mainly made up of artificial plain fill, silty clay, land pebble and Sandy Silt,
Loading whole of the slurries of synchronous grouting between section of jurisdiction and country rock is less than 50%, and the solidification layer of consolidation slurry can not coagulate rapidly
Knot, and effectively section of jurisdiction is lifted and lateral support, it is unfavorable for the stabilization of three-dimensional position after the shaping of section of jurisdiction, so as to cause pipe
Piece loses the mass defects such as circle, sinking, faulting of slab ends.
【Brief description of the drawings】
Fig. 1 is the setting time relation schematic diagram of accelerator volume and simultaneous grouting slurry in the present invention.
【The content of the invention】
A kind of combined type TBM synchronous grouting materials of the present invention, significantly shorten setting time, overcome the not enough problem of slip casting,
Improve operating efficiency, it is ensured that construction quality.
The invention also discloses a kind of combined type TBM synchronous grouting methods.
The present invention is achieved by the following technical solutions：
A kind of combined type TBM synchronous grouting materials, the injecting paste material is made up of following components by weight percent raw material：
It is preferred that, the injecting paste material is made up of following components by weight percent raw material：
It is preferred that, the injecting paste material is made up of following components by weight percent raw material：
It is preferred that, the accelerator is in styrene-acrylic emulsion, polyacrylate emulsion, hydroxymethyl cellulose, polypropylene fibre
One or more mixtures with hydramine.The main component of hydramine is polyaluminium sulfate, organic with other of advantage of lower cost
Composition is mixed, and is used as the main component raw material of accelerator.
It is preferred that, chopped glass fiber is contained in the accelerator, Length of Glass Fiber is less than 3mm.Using chopped glass fiber, glass preferably
Fine length control can effectively improve solidification layer intensity within 3mm, with preferable shock resistance blocking property.
It is preferred that, smectite content is higher than 12% in the swelled ground.Clay is substituted using swelled ground, preferably montmorillonite contains
Swelled ground of the amount more than 12% can expand rapidly, and support the soil layer at gap as raw material at annular space.
A kind of combined type TBM synchronous grouting methods,
1), filling system pipeline is cleaned；
2) injecting paste material in addition to accelerator, is uniformly added into, and continuously stirs mixing injecting paste material, primary slurries are obtained；
3), in tunneling process, when between section of jurisdiction and stratum, when producing annular space between section of jurisdiction and shield tail housing, pass through
It is arranged near filling system and sets up liquid accelerating agent delivery pump, accelerator is mixed into primary slurries injects annular gap；
4), the annular gap of 4-6 bursts of injections of slurries point during slip casting；
5), to the dark slurries of discovery at TBM cutterheads, slip casting is stopped.
Compared with prior art, the invention has the advantages that：
1st, combined type TBM synchronous grouting materials of the invention, are greatly shortened the setting time of simultaneous grouting slurry, slurries
Presetting period is most short to be reduced to 30 minutes or so, the quick slip casting during initial set, the not enough problem of grouting amount is overcome, in final set
When significantly shorten setting time, cripetura activity time improves operating efficiency, it is to avoid wall-rock crack expands, and Mortar mix proportion is in original
On the basis of having a match ratio, by improving cement consumption or adding accelerator, to reduce slurries fluidity, when accelerating slurries and condensing
Between, it is ensured that it can comparatively fast be solidified after slurries injection, and add the antiblock that short glass fiber improves solidification layer；
2nd, a kind of combined type TBM synchronous grouting methods of the invention, by setting up liquid speed near synchronous grouting system
Solidifying agent delivery pump, control simultaneous grouting slurry flow velocity matches with liquid accelerating agent flow velocity, makes accelerator and simultaneous grouting slurry
It is well mixed, cause to alter slurry phenomenon to reduce the shake produced during TBM shield speedy drivages, point multiply note during initial set
Slurry, overcomes the problem of grouting amount is not enough, and TBM its open modes are tunneled, and synchronous grouting pressure is injected in the mode of flowing automatically, and slip casting speed
Degree matched with driving speed, in the absence of because grouting pressure is excessive and caused by slurries loss phenomenon, pre-hardening slurries are same within 30 minutes
When also adapt to the underground water of larger flow and reduce slurries and wash away number of dropouts, improve and protect slurry amount.
【Embodiment】
A kind of combined type TBM synchronous grouting methods,
1), filling system pipeline is cleaned；
2) injecting paste material in addition to accelerator, is uniformly added into, and continuously stirs mixing injecting paste material, primary slurries are obtained；
3), in tunneling process, when between section of jurisdiction and stratum, when producing annular space between section of jurisdiction and shield tail housing, pass through
It is arranged near filling system and sets up liquid accelerating agent delivery pump, accelerator is mixed into primary slurries injects annular gap；
4), the annular gap of 4-6 bursts of injections of slurries point during slip casting；
5), to the dark slurries of discovery at TBM cutterheads, slip casting is stopped.
With reference to specific embodiment, the technical program is further illustrated：
A kind of combined type TBM synchronous grouting materials, the injecting paste material is made up of following components by weight percent raw material
Table 1：Different accelerators and setting time obtained by cement proportion in each embodiment
Fig. 1 is referred to, the setting time of simultaneous grouting slurry can be further greatly shortened after adding liquid accelerating agent, is starched
The liquid presetting period is most short to be reduced to 30 minutes or so, by setting up liquid accelerating agent delivery pump near synchronous grouting system,
Control simultaneous grouting slurry flow velocity matches with liquid accelerating agent flow velocity, accelerator is well mixed with simultaneous grouting slurry, with
Reduce the shake produced during TBM shield speedy drivages to cause to alter slurry phenomenon, 30 minutes pre-hardening slurries also adapt to larger simultaneously
The underground water of flow and reduce slurries and wash away number of dropouts, improve and protect slurry amount.
Claims (7)
1. a kind of combined type TBM synchronous grouting materials, it is characterised in that：The injecting paste material is by following components by weight percent raw material group
Into：
2. a kind of combined type TBM synchronous grouting materials according to claim 1, it is characterised in that：The injecting paste material by
Following components by weight percent raw material composition：
3. a kind of combined type TBM synchronous grouting materials according to claim 1, it is characterised in that：The injecting paste material by
Following components by weight percent raw material composition：
4. a kind of combined type TBM simultaneous grouting slurry materials according to claim 1, it is characterised in that：The accelerator
For the one or more and the mixture of hydramine in styrene-acrylic emulsion, polyacrylate emulsion, hydroxymethyl cellulose, polypropylene fibre.
5. a kind of combined type TBM synchronous grouting materials according to claim 1, it is characterised in that：Contain in the accelerator
There is chopped glass fiber, Length of Glass Fiber is less than 3mm.
6. a kind of combined type TBM synchronous grouting materials according to claim 1, it is characterised in that：Covered in the swelled ground
De- stone content is higher than 12%.
7. a kind of combined type TBM synchronous grouting methods, it is characterised in that：
1), filling system pipeline is cleaned；
2) injecting paste material in addition to accelerator, is uniformly added into, and continuously stirs mixing injecting paste material, primary slurries are obtained；
3), in tunneling process, when between section of jurisdiction and stratum, when producing annular space between section of jurisdiction and shield tail housing, by setting
Liquid accelerating agent delivery pump is set up near filling system, accelerator is mixed into primary slurries injects annular gap；
4), the annular gap of 4-6 bursts of injections of slurries point during slip casting；
5), to the dark slurries of discovery at TBM cutterheads, slip casting is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018199.4A CN107060818A (en) | 2017-01-10 | 2017-01-10 | A kind of combined type TBM synchronous grouting materials and grouting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710018199.4A CN107060818A (en) | 2017-01-10 | 2017-01-10 | A kind of combined type TBM synchronous grouting materials and grouting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060818A true CN107060818A (en) | 2017-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710018199.4A Pending CN107060818A (en) | 2017-01-10 | 2017-01-10 | A kind of combined type TBM synchronous grouting materials and grouting method |
Country Status (1)
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|---|---|
| CN (1) | CN107060818A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409769A (en) * | 2019-08-13 | 2019-11-05 | 南通装配式建筑与智能结构研究院 | A kind of fast gravity die high intensity heavy Machine-blasting mortar construction of long-distance sand transport |
| CN111792871A (en) * | 2019-04-09 | 2020-10-20 | 北京中矿时代工程技术研究院有限公司 | Composite additive for grouting material and grouting material |
| CN114249573A (en) * | 2021-12-31 | 2022-03-29 | 贵州大学 | Subway shield tunnel synchronous grouting material in water-rich karst area, and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363687B2 (en) * | 1983-08-06 | 1988-12-08 | ||
| CN1686914A (en) * | 2005-04-18 | 2005-10-26 | 刘文涛 | Subsequent backfilled pea gravel concrete for lining back of tunnels and backfilling method |
| CN101928122A (en) * | 2009-12-31 | 2010-12-29 | 中国建筑股份有限公司 | Synchronous grouting material used for tunnel and preparation method thereof |
| CN102777373A (en) * | 2012-07-10 | 2012-11-14 | 镇江长城注浆设备有限公司 | Double-liquid synchronous grouting pump |
| CN104671723A (en) * | 2014-12-12 | 2015-06-03 | 安徽恒源煤电股份有限公司 | Paste injecting material of expansive soil cement paste |
-
2017
- 2017-01-10 CN CN201710018199.4A patent/CN107060818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363687B2 (en) * | 1983-08-06 | 1988-12-08 | ||
| CN1686914A (en) * | 2005-04-18 | 2005-10-26 | 刘文涛 | Subsequent backfilled pea gravel concrete for lining back of tunnels and backfilling method |
| CN101928122A (en) * | 2009-12-31 | 2010-12-29 | 中国建筑股份有限公司 | Synchronous grouting material used for tunnel and preparation method thereof |
| CN102777373A (en) * | 2012-07-10 | 2012-11-14 | 镇江长城注浆设备有限公司 | Double-liquid synchronous grouting pump |
| CN104671723A (en) * | 2014-12-12 | 2015-06-03 | 安徽恒源煤电股份有限公司 | Paste injecting material of expansive soil cement paste |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792871A (en) * | 2019-04-09 | 2020-10-20 | 北京中矿时代工程技术研究院有限公司 | Composite additive for grouting material and grouting material |
| CN110409769A (en) * | 2019-08-13 | 2019-11-05 | 南通装配式建筑与智能结构研究院 | A kind of fast gravity die high intensity heavy Machine-blasting mortar construction of long-distance sand transport |
| CN114249573A (en) * | 2021-12-31 | 2022-03-29 | 贵州大学 | Subway shield tunnel synchronous grouting material in water-rich karst area, and preparation method and application thereof |
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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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180130 Address after: No. 4 Xiang Jin Road, Yubei District, Chongqing Applicant after: Chongqing Construction Engineering Group Co., Ltd. Applicant after: Chongqing Traffic Building (Group) Co., Ltd. Address before: 401120, 4 Jin Xiang Road, Chongqing, Yubei District Applicant before: Chongqing Traffic Building (Group) Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |
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| WD01 | Invention patent application deemed withdrawn after publication |