CN109626941A - Inert slurry for Seepage water between concrete tube coupling - Google Patents
Inert slurry for Seepage water between concrete tube coupling Download PDFInfo
- Publication number
- CN109626941A CN109626941A CN201811447936.3A CN201811447936A CN109626941A CN 109626941 A CN109626941 A CN 109626941A CN 201811447936 A CN201811447936 A CN 201811447936A CN 109626941 A CN109626941 A CN 109626941A
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- CN
- China
- Prior art keywords
- cement
- mass ratio
- water
- inert slurry
- waterglass
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- 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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Classifications
-
- 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
- C04B28/24—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 containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00706—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like around pipelines or the like
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
Abstract
The present invention provides a kind of inert slurry for Seepage water between concrete tube coupling, it includes cement grout and waterglass, the cement grout includes cement, calcium chloride, bentonite and water, the mass ratio of the waterglass and the cement grout is (0.75~1): 1, the mass ratio of each raw material is 1:0.25:0.5:(0.75~1.25 in the cement grout).Above-mentioned inert slurry can rapidly between fill concrete tube coupling and soil layer gap, block water-flowing path, improve the percolating water phenomenon at joints of segment.
Description
Technical field
The present invention relates to push bench process technical field of tunnel construction, especially a kind of to be used between concrete tube coupling at percolating water
The inert slurry of reason.
Background technique
During push bench process constructing tunnel, generallys use airtightness push-bench or open type push-bench carries out spoil
Body, to form cavity, then by be located at active well the real-time jacking concrete tube coupling (or steel pipe) of oil cylinder to excavation section into
Row supporting.It is attached between tube coupling by F type Push-fit, tube coupling interface is mainly by outer sleeve (steel collar), inline type rubber
Waterstop and weak soil liner composition.However, because of construction level difference, curved jacking, concrete tube coupling quality etc. in work progress
Reason, it is understood that there may be seeping between tube coupling then occurs in phenomena such as gap of unilateral tube coupling interface becomes larger, rubber fastening band seal failure
The phenomenon that leak.If the leakage problem during push bench process constructing tunnel cannot be administered effectively, water flooding can be caused
Soil flow is lost, and may cause ground settlement deformation, collapses, road settlement, cracking, pipe settlement, breakage, building settlement deformation etc.
A series of accidents.
Summary of the invention
In view of the above situation, it is necessary to a kind of inert slurry for Seepage water between concrete tube coupling is provided, with
Gap between rapid fill concrete tube coupling and soil layer, blocks water-flowing path, improves the percolating water phenomenon at joints of segment.
A kind of inert slurry for Seepage water between concrete tube coupling comprising cement grout and waterglass, institute
Stating cement grout includes cement, calcium chloride, bentonite and water, and the mass ratio of the waterglass and the cement grout is (0.75
~1): 1, the mass ratio of each raw material is 1:0.25:0.5:(0.75~1.25 in the cement grout).
Further, the density of the waterglass is 1.32~1.35g/cm3。
Further, the cement is ordinary portland cement.
Further, in the inert slurry, the mass ratio of water and cement is 1:1, and the mass ratio of calcium chloride and cement is
The mass ratio of 0.25:1, bentonite and cement is 0.5:1, and the mass ratio of waterglass and cement grout is 1:1.
Further, in the inert slurry, the mass ratio of water and cement is 1:1, and the mass ratio of calcium chloride and cement is
The mass ratio of 0.25:1, bentonite and cement is 0.5:1, and the mass ratio of waterglass and cement grout is 0.75:1.
Further, in the inert slurry, the mass ratio of water and cement is 0.75:1, the mass ratio of calcium chloride and cement
For 0.25:1, the mass ratio of bentonite and cement is 0.5:1, and the mass ratio of waterglass and cement grout is 1:1.
Further, in the inert slurry, the mass ratio of water and cement is 1.25:1, the mass ratio of calcium chloride and cement
For 0.25:1, the mass ratio of bentonite and cement is 0.5:1, and the mass ratio of waterglass and cement grout is 0.75:1.
When applying during push bench process constructing tunnel, which can be rapidly between fill concrete tube coupling and soil layer
Gap, block water-flowing path, reduce joints of segment at water amount of seepage, hence it is evident that improve more serious percolating water phenomenon；In addition, this is lazy
Property slurries gel time rationally but not consolidate, not will lead to tube coupling locking；Also, have after the inert slurry gel certain
Intensity is not easy to be broken up by water flow, water plugging effect has been effectively ensured.
Detailed description of the invention
Fig. 1 is the proportion and verification result of inert slurry in embodiment one to four provided by the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, With reference to embodiment
The present invention will be described in detail.It should be noted that in the absence of conflict, presently filed embodiment and embodiment
In feature can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, described embodiment
It is only some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this field is general
Logical technical staff all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that the limitation present invention.
Term " and or " used herein includes any and all groups of one or more relevant listed items
It closes.
The present invention provides a kind of inert slurry for Seepage water between concrete tube coupling comprising cement grout and
Waterglass, the cement grout include cement, calcium chloride, bentonite and water, the quality of the waterglass and the cement grout
Than for (0.75~1): 1, the mass ratio of each raw material is 1:0.25:0.5:(0.75~1.25 in the cement grout).
Cement in the embodiment of the present invention is ordinary portland cement, and cement grade is No. 425.
The water of the inert slurry and the mass ratio (ratio of mud) of cement are (0.75~1.25): 1, it adjusts within this range
The ratio of mud, be adjusted inert slurry can injection.
Calcium chloride in the embodiment of the present invention is reacted for improving slurry fluidity, acceleration cement grout with waterglass,
Accelerate rate of set.
Bentonite in the embodiment of the present invention slows down inertia to increase the cementability of inert slurry for drilling well bentonite
The separation of slurry material.
Waterglass in the embodiment of the present invention is the water soluble alkali gold being combined by alkali metal oxide and silica
Belong to silicate, main component is Na2SiO3, it is used as curing agent, plays the role of adjusting setting time.The density of waterglass is
1.32~1.35g/cm3。
When preparing the inert slurry, first cement, calcium chloride, bentonite and water are mixed with as cement grout, then will
Cement grout and waterglass mix.
After cement grout and waterglass mixing, which simultaneously loses plasticity, and the intensity at initial stage is higher,
Quickly water-flowing path to be blocked to provide feasibility.The inert slurry has that gel time is short, and caking property is good, has certain soft
Plasticity, the characteristics such as later strength is low.Using the above-mentioned characteristic of the inert slurry, which can gradually form filling out for continuous type
Body is filled, water plugging effect is then reached, guarantees that subsequent construction is smooth.
When applying during push bench process constructing tunnel, which can be rapidly between fill concrete tube coupling and soil layer
Gap, block water-flowing path, reduce joints of segment at water amount of seepage, hence it is evident that improve more serious percolating water phenomenon, for example, can will
Serious leakage water becomes part and drips.In addition, the gel time of the inert slurry is reasonable but not consolidates, it not will lead to tube coupling and embrace
Extremely；Also, there is some strength after the inert slurry gel, be not easy to be broken up by water flow, water plugging effect has been effectively ensured.Therefore,
The inert slurry is applicable to the Seepage water between concrete tube coupling, especially more serious Seepage water.
It please join Fig. 1, illustrate the inert slurry with reference to embodiments.
Embodiment one
The mass ratio of a kind of inert slurry, including cement, calcium chloride, waterglass, bentonite and water, water and cement is 1:1,
The mass ratio of calcium chloride and cement is 0.25:1, and the mass ratio of bentonite and cement is 0.5:1, the matter of waterglass and cement grout
Amount is than being 1:1.
Preparing every cubic metre of inert slurry includes following weight raw material: cement 100kg, calcium chloride 25kg, waterglass
275kg, bentonite 50kg, water 100kg.
Using inert slurry made from this proportion, verified gel time is 3 seconds, hard after ten minutes to press energetically
When, the surface of inert slurry is cracked.
Embodiment two
The mass ratio of a kind of inert slurry, including cement, calcium chloride, waterglass, bentonite and water, water and cement is 1:1,
The mass ratio of calcium chloride and cement is 0.25:1, and the mass ratio of bentonite and cement is 0.5:1, the matter of waterglass and cement grout
Amount is than being 0.75:1.
Preparing every cubic metre of inert slurry includes following weight raw material: cement 100kg, calcium chloride 25kg, waterglass
206.25kg, bentonite 50kg, water 100kg.
Using inert slurry made from this proportion, verified gel time is 6 seconds, hard after ten minutes to press energetically
When, the surface of inert slurry is cracked.
Embodiment three
The mass ratio of a kind of inert slurry, including cement, calcium chloride, waterglass, bentonite and water, water and cement is
The mass ratio of 0.75:1, calcium chloride and cement is 0.25:1, and the mass ratio of bentonite and cement is 0.5:1, waterglass and cement
The mass ratio of slurries is 1:1.
Preparing every cubic metre of inert slurry includes following weight raw material: cement 100kg, calcium chloride 25kg, waterglass
250kg, bentonite 50kg, water 75kg.
Using inert slurry made from this proportion, verified gel time is 4 seconds, hard after ten minutes to press energetically
When, the surface of inert slurry is cracked.
Example IV
The mass ratio of a kind of inert slurry, including cement, calcium chloride, waterglass, bentonite and water, water and cement is
The mass ratio of 1.25:1, calcium chloride and cement is 0.25:1, and the mass ratio of bentonite and cement is 0.5:1, waterglass and cement
The mass ratio of slurries is 0.75:1.
Preparing every cubic metre of inert slurry includes following weight raw material: cement 100kg, calcium chloride 25kg, waterglass
225kg, bentonite 50kg, water 125kg.
Using inert slurry made from this proportion, verified gel time is 5 seconds, hard after ten minutes to press energetically
When, the surface of inert slurry is cracked.
As shown in Figure 1, the gel time of inert slurry is respectively less than 10 seconds in above-mentioned four kinds of embodiments, gel time is shorter.
Wherein, the gel time of the inert slurry in embodiment one is most short.
In practical applications, the preparation method of the inert slurry can comprise the following steps that firstly, temporarily listing inert slurry
Proportion prepares inert slurry according to proportion, grasps the gel time of inert slurry, inert slurry is used for the place of practical percolating water
Reason；Verify the treatment effect of percolating water.The above process is recycled, finely tunes the proportion of inert slurry, and multiple groups inert slurry is compared
Analysis, it is final to determine most reasonable proportion.Wherein, it before inert slurry to be used for percolating water construction, needs first to be opened according to theory
Digging face and tube coupling tube wall size calculate the soil body and tube wall clearance cavity volume determines grouting amount；Report, underground water are surveyed in base area
Grouting pressure is determined with earth's surface monitoring situation in pressure report, tunnel.
Finally it should be noted that embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although ginseng
It is described the invention in detail according to better embodiment, those skilled in the art should understand that, it can be to this hair
Bright technical solution is modified or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. a kind of inert slurry for Seepage water between concrete tube coupling comprising cement grout and waterglass, it is special
Sign is: the cement grout includes cement, calcium chloride, bentonite and water, the quality of the waterglass and the cement grout
Than for (0.75~1): 1, the mass ratio of each raw material is 1:0.25:0.5:(0.75~1.25 in the cement grout).
2. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
The density of waterglass is 1.32~1.35g/cm3。
3. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
Cement is ordinary portland cement.
4. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
In inert slurry, the mass ratio of the water and the cement is 1:1, and the mass ratio of the calcium chloride and the cement is 0.25:
1, the mass ratio of the bentonite and the cement is 0.5:1, and the mass ratio of the waterglass and the cement grout is 1:1.
5. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
In inert slurry, the mass ratio of the water and the cement is 1:1, and the mass ratio of the calcium chloride and the cement is 0.25:
1, the mass ratio of the bentonite and the cement is 0.5:1, and the mass ratio of the waterglass and the cement grout is 0.75:
1。
6. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
In inert slurry, the mass ratio of the water and the cement is 0.75:1, and the mass ratio of the calcium chloride and the cement is
The mass ratio of 0.25:1, the bentonite and the cement is 0.5:1, and the mass ratio of the waterglass and the cement grout is
1:1。
7. the inert slurry for Seepage water between concrete tube coupling as described in claim 1, it is characterised in that: described
In inert slurry, the mass ratio of the water and the cement is 1.25:1, and the mass ratio of the calcium chloride and the cement is
The mass ratio of 0.25:1, the bentonite and the cement is 0.5:1, and the mass ratio of the waterglass and the cement grout is
0.75:1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811447936.3A CN109626941A (en) | 2018-11-29 | 2018-11-29 | Inert slurry for Seepage water between concrete tube coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811447936.3A CN109626941A (en) | 2018-11-29 | 2018-11-29 | Inert slurry for Seepage water between concrete tube coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109626941A true CN109626941A (en) | 2019-04-16 |
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ID=66069937
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811447936.3A Pending CN109626941A (en) | 2018-11-29 | 2018-11-29 | Inert slurry for Seepage water between concrete tube coupling |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118616A (en) * | 1993-02-25 | 1996-03-13 | 国际壳牌研究有限公司 | Method for drilling and cementing a well |
| CN1469012A (en) * | 2002-07-19 | 2004-01-21 | 岩 李 | Serial motor for fasting treating piping, sandy soil liquefaction and leakage of underwater structure |
| US20060086502A1 (en) * | 2004-10-26 | 2006-04-27 | Halliburton Energy Services | Casing strings and methods of using such strings in subterranean cementing operations |
| CN101654356A (en) * | 2009-09-02 | 2010-02-24 | 中铁二局股份有限公司 | Shield method tunnel synchronous grouting slurry applied to compound stratum with upper soft part and lower hard part |
-
2018
- 2018-11-29 CN CN201811447936.3A patent/CN109626941A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118616A (en) * | 1993-02-25 | 1996-03-13 | 国际壳牌研究有限公司 | Method for drilling and cementing a well |
| CN1469012A (en) * | 2002-07-19 | 2004-01-21 | 岩 李 | Serial motor for fasting treating piping, sandy soil liquefaction and leakage of underwater structure |
| US20060086502A1 (en) * | 2004-10-26 | 2006-04-27 | Halliburton Energy Services | Casing strings and methods of using such strings in subterranean cementing operations |
| CN101654356A (en) * | 2009-09-02 | 2010-02-24 | 中铁二局股份有限公司 | Shield method tunnel synchronous grouting slurry applied to compound stratum with upper soft part and lower hard part |
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Application publication date: 20190416 |