CN109555142A - A kind of constructing device for basement rock two-shot grouting - Google Patents
A kind of constructing device for basement rock two-shot grouting Download PDFInfo
- Publication number
- CN109555142A CN109555142A CN201910042342.2A CN201910042342A CN109555142A CN 109555142 A CN109555142 A CN 109555142A CN 201910042342 A CN201910042342 A CN 201910042342A CN 109555142 A CN109555142 A CN 109555142A
- Authority
- CN
- China
- Prior art keywords
- grouting
- rock
- grouting pipe
- filler block
- waterglass
- 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
Links
- 239000011435 rock Substances 0.000 title claims abstract description 52
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000004568 cement Substances 0.000 claims abstract description 24
- 238000007569 slipcasting Methods 0.000 claims abstract description 23
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 21
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 231100000241 scar Toxicity 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 abstract description 8
- 238000005429 filling process Methods 0.000 abstract description 6
- 239000011440 grout Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention provides a kind of constructing device for basement rock two-shot grouting, including filler block, waterglass Grouting Pipe and cement slurry Grouting Pipe, filler block is transferred to rock grouting section scar, slip casting section divides 5m mono- section, and it is sealed between filler block and rock grouting hole, one end of waterglass Grouting Pipe and cement slurry Grouting Pipe is each passed through filler block and extends in rock grouting hole, and one end of the waterglass Grouting Pipe extends at the 15m basement rock of lower part, one end of the cement slurry Grouting Pipe extends at the 15m basement rock of top, slip casting check valve is also respectively provided on one end of the waterglass Grouting Pipe and cement slurry Grouting Pipe.There are operating difficulties in basement rock two fluid grouting work progress to solve, and safety is poor, often has and occurs grout in filling process, it is difficult to the phenomenon that pressure maintaining, construct complex, it is at high cost, it is long in time limit the problems such as.Belong to geotechnical engineering construction security technology area.
Description
Technical field
The present invention relates to a kind of constructing devices for basement rock two-shot grouting, belong to geotechnical engineering construction safe practice neck
Domain.
Background technique
According to the mandatory code requirement of Shenzhen Metro, after common basement rock fills permeability rate require q≤0.5Lu (6.475 ×
10-6/ cm/s) or q≤geological diagnostics permeability rate 1/10, for more complete light weathered granite, joint agensis, part is flower
Hilllock rock microfissure, rock cement slurry plasma volume is few, and water-stagnating effect is difficult to control, it is difficult to meet the requirement of basement rock permeability rate after filling.
In order to guarantee the rock slurries amount of pouring into, achieve the effect that rock sealing is passed through using cement slurry+silicate double solution grouting after filling
Basement rock two-shot grouting constructing device carries out waterglass slip casting to lower part 15m basement rock, and top 15m basement rock carries out cement slurry slip casting, behaviour
It is convenient, highly-safe to make, and the effect of rock sealing after filling has been effectively ensured, the safety of subway tunnel has been protected, however, in basement rock
There are operating difficulties in two fluid grouting work progress, and safety is poor, often have and occur grout in filling process, it is difficult to which pressure maintaining shows
As, it constructs complex, it is at high cost, it is long in time limit.
Summary of the invention
It is an object of the invention to: a kind of constructing device for basement rock two-shot grouting is provided, to solve in basement rock biliquid
There are operating difficulties during mortar depositing construction, and safety is poor, often has and occurs grout in filling process, it is difficult to the phenomenon that pressure maintaining,
Construct complex, it is at high cost, it is long in time limit the problems such as.
To solve the above problems, such a constructing device for basement rock two-shot grouting of proposed adoption, including filler block, water
Glass Grouting Pipe and cement injection pipe are put in rock grouting section scar under filler block, and slip casting section divides 5m mono- section, and filler block and base
It is sealed between rock injected hole, one end of waterglass Grouting Pipe and cement slurry Grouting Pipe is each passed through filler block and extends to rock grouting
In hole, and one end of the waterglass Grouting Pipe extends at the 15m basement rock of lower part, and one end of the cement injection pipe extends to top
At 15m basement rock, slip casting check valve, rock grouting are also respectively provided on one end of the waterglass Grouting Pipe and cement injection pipe
When outward washed open by grouting pressure, check valve is in closed state when no pressure acts on.
In aforementioned constructing device, it is additionally provided with pressure maintaining mouth on the filler block, is used for filler block pressurized expansion, grouting pressure
It adjusts and pressure maintaining is carried out to slip casting process, guarantee that entire grouting environment is in air-tight state, it is complete under Grouting Design pressure value
At rock stratum grouting construction；
In aforementioned constructing device, the pressure maintaining mouth is the access for penetrating through filler block upper and lower ends, and is arranged on the access high
Pressure valve, when lower part air pressure is more than setting pressure, by high pressure valve to external pressure release.
Compared with prior art, the present invention is terminated using double Grouting Pipe slip castings, movable filler block in waterglass perfusion
The grouting of cement slurry, and the position of the depth adjustment filler block according to grouting liquid level are and then carried out afterwards, have been effectively ensured entire
Continuing for filling process is uninterrupted, shortens grouting duration, in addition, present invention employs controllable pressure maintaining mouth high pressure valve, it is whole
A filling process adjusts grouting pressure by pressure maintaining mouth, has accomplished pressure controllable, stablizes, the effect of grouting to waterproof has been effectively ensured
Fruit.Entire provisions for grouting is easy to operate, highly-safe, and effectively shortens the construction period, at low cost.
Detailed description of the invention
Fig. 1 is constructing structure schematic diagram of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
The detailed description of step.
Embodiment:
Referring to attached drawing 1, the present embodiment provides a kind of constructing devices for basement rock two-shot grouting, including filler block 1, water glass
Glass Grouting Pipe 2 and cement injection pipe 3, the plug of filler block 1 are set to rock grouting section scar, and slip casting section divides 5m mono- section, and filler block 1 with
It is sealed between rock grouting hole 4, filler block 1 blocks slurries to prevent grout, one end of waterglass Grouting Pipe 2 and cement injection pipe 3
It is each passed through filler block 1 and extends in rock grouting hole 4, and one end of the waterglass Grouting Pipe 2 extends to lower part 15m basement rock
Place, one end of the cement injection pipe 3 extend at the 15m basement rock of top, and the one of the waterglass Grouting Pipe 2 and cement injection pipe 3
It is also respectively provided with the slip casting check valve 5 opened outward on end, when rock grouting is outward washed open by grouting pressure, no pressure
Masterpiece used time check valve 5 is in closed state.Pressure maintaining mouth 6 is additionally provided on filler block 1, the pressure maintaining mouth 6 is perforation filler block 1
The access of upper and lower ends, and high pressure valve is set on the access, when lower part air pressure is more than setting pressure, by high pressure valve to outside
Pressure release carries out filler block pressurized expansion by pressure maintaining mouth 6 when rock grouting, grouting pressure is adjusted and is protected to slip casting process
Pressure guarantees that entire grouting environment is in air-tight state, rock stratum grouting construction is completed under Grouting Design pressure value.
The concrete construction method of above-mentioned two-shot grouting device is as follows:
The device first passes through waterglass Grouting Pipe 2 and carries out 7 slip casting of waterglass, when slip casting, water to lower part 15m basement rock when constructing
Slip casting check valve 5 in glass Grouting Pipe 2 is washed open outward by grouting pressure, while another 5 no pressure of slip casting check valve acts on
In closed state, 8 slip casting of cement slurry is carried out to top 15m basement rock followed by cement injection pipe 3 after having filled, when slip casting,
Slip casting check valve 5 on cement injection pipe 3 is washed open by grouting pressure, and at the slip casting contact surface of cement slurry 8 and waterglass 7
Formation length is the rock two fluid grouting section 9 of 6m or so, ensure that the grouting to waterproof effect at slip casting interface, entire slip casting process are adopted
Continue pressure maintaining 30 minutes by pressure maintaining mouth 6 with 3Mpa grouting pressure, grout compartment divides 5m mono- section, one section of basement rock grouting to waterproof of every completion
Plug position is adjusted to grout compartment scar, and the construction of entire injected hole is completed with this, and entire filling process continues uninterruptedly, is effectively protected
Grouting effect is demonstrate,proved.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, it will be apparent to an ordinarily skilled person in the art that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (3)
1. a kind of constructing device for basement rock two-shot grouting, it is characterised in that: including filler block (1), waterglass Grouting Pipe (2)
With cement injection pipe (3), rock grouting section scar is put under filler block (1), slip casting section divides 5m mono- section, and filler block (1) and base
Rock injected hole seals between (4), and one end of waterglass Grouting Pipe (2) and cement slurry Grouting Pipe (3) is each passed through filler block (1) simultaneously
It extends in rock grouting hole (4), and one end of the waterglass Grouting Pipe (2) extends at the 15m basement rock of lower part, the cement injection
One end of pipe (3) extends at the 15m basement rock of top, also divides on one end of the waterglass Grouting Pipe (2) and cement slurry Grouting Pipe (3)
It is not provided with the slip casting check valve (5) opened outward.
2. a kind of constructing device for basement rock two-shot grouting according to claim 1, it is characterised in that: the filler block
(1) pressure maintaining mouth (6) are additionally provided on.
3. a kind of constructing device for basement rock two-shot grouting according to claim 2, it is characterised in that: the pressure maintaining mouth
(6) it is the access of perforation filler block (1) upper and lower ends, and high pressure valve is set on the access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042342.2A CN109555142A (en) | 2019-01-17 | 2019-01-17 | A kind of constructing device for basement rock two-shot grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042342.2A CN109555142A (en) | 2019-01-17 | 2019-01-17 | A kind of constructing device for basement rock two-shot grouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555142A true CN109555142A (en) | 2019-04-02 |
Family
ID=65873121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910042342.2A Pending CN109555142A (en) | 2019-01-17 | 2019-01-17 | A kind of constructing device for basement rock two-shot grouting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109555142A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884790A (en) * | 2006-07-06 | 2006-12-27 | 宋彦波 | Grouting sealing method and apparatus for borehole and conductor pipe for water prospection of mine |
| CN204590023U (en) * | 2015-03-16 | 2015-08-26 | 中国水电基础局有限公司 | A kind of deep covering layer two-shot grouting plug |
| CN205152954U (en) * | 2015-11-11 | 2016-04-13 | 中铁第一勘察设计院集团有限公司 | Grout three -way tube structure that renovation shallow layer cover type karst ground sinks |
| CN207159727U (en) * | 2017-09-11 | 2018-03-30 | 广西交通规划勘察设计研究院有限公司 | A kind of roadbed Grouting Pipe |
| CN108756898A (en) * | 2018-06-06 | 2018-11-06 | 中铁六局集团有限公司 | Using the front pre-grouting construction method of HSC grouting materials |
| CN109098687A (en) * | 2018-10-11 | 2018-12-28 | 中国石油大学(华东) | Single stop grouting plug retrusive sublevel grouting device and method suitable for crack rock |
| CN209538205U (en) * | 2019-01-17 | 2019-10-25 | 中建四局第一建筑工程有限公司 | A kind of constructing device for basement rock two-shot grouting |
-
2019
- 2019-01-17 CN CN201910042342.2A patent/CN109555142A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884790A (en) * | 2006-07-06 | 2006-12-27 | 宋彦波 | Grouting sealing method and apparatus for borehole and conductor pipe for water prospection of mine |
| CN204590023U (en) * | 2015-03-16 | 2015-08-26 | 中国水电基础局有限公司 | A kind of deep covering layer two-shot grouting plug |
| CN205152954U (en) * | 2015-11-11 | 2016-04-13 | 中铁第一勘察设计院集团有限公司 | Grout three -way tube structure that renovation shallow layer cover type karst ground sinks |
| CN207159727U (en) * | 2017-09-11 | 2018-03-30 | 广西交通规划勘察设计研究院有限公司 | A kind of roadbed Grouting Pipe |
| CN108756898A (en) * | 2018-06-06 | 2018-11-06 | 中铁六局集团有限公司 | Using the front pre-grouting construction method of HSC grouting materials |
| CN109098687A (en) * | 2018-10-11 | 2018-12-28 | 中国石油大学(华东) | Single stop grouting plug retrusive sublevel grouting device and method suitable for crack rock |
| CN209538205U (en) * | 2019-01-17 | 2019-10-25 | 中建四局第一建筑工程有限公司 | A kind of constructing device for basement rock two-shot grouting |
Non-Patent Citations (1)
| Title |
|---|
| 袁超鹏;王胜;吴秋红;: "水泥-水玻璃注浆在围堰防渗漏浆处理中的应用", 探矿工程(岩土钻掘工程), no. 10 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190402 |
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| RJ01 | Rejection of invention patent application after publication |