CN109447366A - A kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed - Google Patents
A kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed Download PDFInfo
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- CN109447366A CN109447366A CN201811329494.2A CN201811329494A CN109447366A CN 109447366 A CN109447366 A CN 109447366A CN 201811329494 A CN201811329494 A CN 201811329494A CN 109447366 A CN109447366 A CN 109447366A
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- 239000002689 soil Substances 0.000 title claims abstract description 76
- 239000004575 stone Substances 0.000 title claims abstract description 72
- 230000006835 compression Effects 0.000 title claims abstract description 42
- 238000007906 compression Methods 0.000 title claims abstract description 42
- 238000003306 harvesting Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 26
- 238000007569 slipcasting Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000012530 fluid Substances 0.000 claims abstract description 31
- 230000005484 gravity Effects 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 11
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 abstract description 11
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 5
- 238000000691 measurement method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229940059082 douche Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000643 oven drying Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
Abstract
The invention discloses the prediction techniques for the Seed harvest compression strength that a kind of loose crushed stone soil layer of floral tube grouting and reinforcing is formed, and belong to rock engineering technical field.Density p, water content ω and the specific gravity G for the loose crushed stone soil layer that the present invention need to be reinforced by measurementS, and calculate the porosity φ of loose crushed stone soil layer；According to the density p of loose crushed stone soil layer, water content ω, specific gravity GSGrouting tube is selected with porosity φ, the pitch-row between the injected hole of selected grouting tube side is measured, calculates average pitch-row l；According to designed grouting pressure p, slip casting fluid ratio of mud w, slip casting time t and slip casting Seed harvest compression strength formula Fcu=17.462p0.143w‑0.685l‑0.141t0.036n0.442Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcu.The method of the present invention technically reliable, it is simple and easy, it can be used as the theoretical foundation for reinforcing Seed harvest compression strength design and prediction that loose crushed stone soil layer is formed using floral tube slurry injection technique, can be practiced for Grouting engineering and theory support is provided.
Description
Technical field
The present invention relates to the prediction technique for the Seed harvest compression strength that a kind of loose crushed stone soil layer of floral tube grouting and reinforcing is formed,
Belong to rock engineering technical field.
Background technique
In China, gravelly soil distribution of strata is very extensive；And a large amount of infrastructure development project is raised on gravelly soil stratum
Among standby construction, construction and it is completed and puts into effect.Since the new century, with the rapid development of social economy, China pair
The infrastructure constructions demands such as hydraulic and hydroelectric engineering, railway (high-speed rail), highway (highway) and urban track traffic (subway)
Increasingly increase.Such as, by the end of the end of the year 2015,3300 kilometers of the urban track traffic operating mileage in China；Expect the year two thousand twenty；Entirely
State's urban track traffic operating mileage is up to 6000 kilometers, almost doubles.However, being grown rapidly in these engineering constructions
While, the engineering geological condition met with is increasingly sophisticated, and problems faced is more and more challenging, with inducing all kinds of engineerings
Matter disaster is also increasing, e.g., landslide, avalanche, mud-rock flow, rock burst, surface subsidence, ground settlement, water burst and prominent mud etc..These
Geological disaster not only results in great casualties and huge property loss, destroys Water Resource Balance and ecological environment；And
And engineering construction and operation phase safety are significantly affected, seriously threaten economic development and social stability.
Show by the engineering practice of many years: slurry injection technique, especially floral tube slurry injection technique, it has also become solve current rubble
The effective technology means of all kinds of engineering field Geotechnical Problems first choices faced in soil layer；Building, highway, railway, subway,
The engineering fields such as mine, tunnel, water power and military affairs have obtained widely applying, and achieve good engineering effort.
It is practiced in engineering in slip casting, the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed is to examine note
Slurry reinforces the loose most important index parameter of crushed stone soil layer effect.It is infused however, yet there are no relevant utilization floral tube both at home and abroad at present
Slurry technology reinforce the quantitative forecasting technique for the Seed harvest compression strength that loose crushed stone soil layer is formed in terms of report and achievement.Cause
How effectively, quickly and accurately this, determine the Seed harvest compression strength index that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed
It is that technical problem urgently to be solved in engineering is practiced in slip casting.
Summary of the invention
For the forecasting problem for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing in the prior art is formed,
The present invention provides a kind of prediction technique of Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, energy of the present invention
Effectively, the Seed harvest compression strength index that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed quickly and accurately is determined.
A kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, specific steps are such as
Under:
(1) density p, water content ω and the specific gravity G for the loose crushed stone soil layer that measurement need to reinforceS, and calculate loose rubble
The porosity φ of soil layer；
(2) according to the density p of the loose crushed stone soil layer of step (1), water content ω, specific gravity GSSlip casting flower is selected with porosity φ
Pipe measures the pitch-row between the injected hole of selected grouting tube side, calculates average pitch-row l；
(3) grouting pressure p, slip casting fluid ratio of mud w and slip casting time t are designed, according to Seed harvest compression strength formula
Fcu=17.462p0.143w-0.685l-0.141t0.036n0.442
Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcu；Compression strength Fcu, slip casting
The unit of average pitch-row l is respectively MPa, MPa, s and cm, slip casting between pressure p, slip casting time t and grouting tube side injected hole
The fluid ratio of mud w and porosity φ of loose crushed stone soil layer is dimensionless number.
The calculation formula of the porosity φ of the loose crushed stone soil layer of the step (1) is
Wherein,The density of pure distilled water, unit g/cm when being 4 DEG C3；Loosely the unit of the density p of crushed stone soil layer is
g/cm3；Water content ω is mass water content, %；Specific gravity GSFor dimensionless number.
The calculation formula of the slip casting fluid ratio of mud w is
Wherein, mWaterFor the quality of water needed for configuration slip casting fluid, unit Kg, mInjecting paste materialTo be infused needed for configuration slip casting fluid
The quality of pulp material, Kg.
The measurement method of loose crushed stone soil layer density p can be douche, sand replacement method or core cutter method；
The measurement method of loose crushed stone soil layer water content ω can be oven drying method；
Loose crushed stone soil layer specific gravity GSMeasurement method can for bottle method in conjunction with siphon cylinder method, partial size is less than
The part of 5mm bottle method measures specific gravity, and the part to partial size not less than 5mm measures specific gravity with siphon cylinder method.
Beneficial effects of the present invention:
(1) present invention can not only effectively, quickly and accurately determine the knot that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed
Stone body compression strength index；And be exactly available the Seed harvest compression strength that is formed during slip casting and grouting pressure,
Between the slip casting fluid ratio of mud, slip casting time, grouting tube side injected hole between average pitch-row and loose crushed stone soil layer porosity
Changing rule；
(2) the technology of the present invention is reliable, simple and easy, can be used as and is formed using the loose crushed stone soil layer of floral tube slurry injection technique reinforcing
Seed harvest compression strength design and prediction theoretical foundation, slip casting can be instructed to practice engineer application, improve floral tube grouting and reinforcing
The technical level of loose crushed stone soil layer.
Detailed description of the invention
Fig. 1 is grouting test apparatus structure schematic diagram in embodiment, wherein 1- pressure supply equipment, 2- slurry-storing container, 3- test
Case, 4- nitrogen pressure reducer (pressure gauge is housed) are infused with grouting control switch, 5- slip casting fluid, 6- electronic scale, 7- grouting pipe, 8-
Starch floral tube, the loose crushed stone soil layer of 9-；
Fig. 2 is embodiment grouting tube schematic diagram.
Specific embodiment
Invention is further described in detail With reference to embodiment, but protection scope of the present invention and unlimited
In the content.
Grouting test apparatus structure schematic diagram in the embodiment of the present invention is as shown in Figure 1, from fig. 1, it can be seen that grouting test device
Including pressure supply equipment 1, slurry-storing container 2, chamber 3, nitrogen pressure reducer (pressure gauge is housed) and grouting control switch 4, slip casting stream
Body 5, electronic scale 6, grouting pipe 7, grouting tube 8, loose crushed stone soil layer 9, grouting tube 8 are vertically and fixedly arranged at chamber 3
Roof center and extend downward into chamber 3, grouting tube 8 passes through the note of steel ring welding formula connector and slip casting experimental provision
Conduit 7 is starched to be connected to；Loose crushed stone soil layer 9, which is piled up, to be placed on inside chamber 3, and slurry-storing container 2 is placed on 6 top of electronic scale, note
The other end of slurry conduit 7 is connected to the slurry outlet of 2 low side of slurry-storing container, and slip casting fluid 5 is arranged in slurry-storing container 2, storage slurry
The top closure of container 2 and top is provided with the pressure supply gas pipeline being connected to 1 gas vent of pressure supply equipment, pressure supply gas pipeline
On be provided with nitrogen pressure reducer (equipped with pressure gauge) and grouting control switch 4.
In experimentation, the measurement method of the practical compression strength of slip casting Seed harvest are as follows: assembling slip casting experimental provision simultaneously checks
The leakproofness of chamber is laid with loose crushed stone soil layer in chamber, grouting tube is buried at loose crushed stone soil layer center, using steel
The slip casting fluid circuit of ring welded fitting connection grouting tube and slip casting experimental provision；Start the i.e. opening grout injection control of slip casting to open
It closes, and slowly opens nitrogen pressure reducer, constantly regulate grouting pressure until pressure gauge reaches the grouting pressure value of design, observation is simultaneously
Record slurries mobility status；When slip casting fluid injection length reaches preset time in slurry-storing container, stop slip casting；It is solidifying to slurries
Gu slip casting Seed harvest is fabricated to diameter × height=50mm × 50mm cylinder by demoulding after, the requirement according to earthwork test rule
Test specimen, then the practical resistance to compression of slip casting Seed harvest is obtained using the machine measurement of TAW-2000D microcomputer controlled electro-hydraulic servo rock triaxial test
Intensity FReal cu。
Embodiment 1: a kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, tool
Steps are as follows for body:
(1) density p, water content ω and the specific gravity G for the loose crushed stone soil layer that measurement need to reinforceS, and calculate loose rubble
The porosity φ of soil layer；
(2) according to the density p of the loose crushed stone soil layer of step (1), water content ω, specific gravity GSSlip casting flower is selected with porosity φ
Pipe measures the pitch-row between the injected hole of selected grouting tube side, calculates average pitch-row l；
(3) grouting pressure p, slip casting fluid ratio of mud w and slip casting time t are designed, according to Seed harvest compression strength formula
Fcu=17.462p0.143w-0.685l-0.141t0.036n0.442
Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcu；Compression strength Fcu, slip casting
The unit of average pitch-row l is respectively MPa, MPa, s and cm, slip casting between pressure p, slip casting time t and grouting tube side injected hole
The fluid ratio of mud w and porosity φ of loose crushed stone soil layer is dimensionless number.
The calculation formula of the porosity φ of the loose crushed stone soil layer of the step (1) is
Wherein,The density of pure distilled water, unit g/cm when being 4 DEG C3；Loosely the unit of the density p of crushed stone soil layer is
g/cm3；Water content ω is mass water content, %；Specific gravity GSFor dimensionless number.
The calculation formula of the slip casting fluid ratio of mud w is
Wherein, mWaterFor the quality of water needed for configuration slip casting fluid, unit Kg, mInjecting paste materialTo be infused needed for configuration slip casting fluid
The quality of pulp material, Kg.
The measurement method of loose crushed stone soil layer density p can be douche, sand replacement method or core cutter method；
The measurement method of loose crushed stone soil layer water content ω can be oven drying method；
Loose crushed stone soil layer specific gravity GSMeasurement method can for bottle method in conjunction with siphon cylinder method, partial size is less than
The part of 5mm bottle method measures specific gravity, and the part to partial size not less than 5mm measures specific gravity with siphon cylinder method.
Embodiment 2: a kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, tool
Steps are as follows for body:
(1) density p for the loose crushed stone soil layer that measurement need to reinforce is 1.73g/cm3, water content ω be 2.05% with specific gravity GS
It is 2.61, and the porosity φ for calculating loose crushed stone soil layer is 0.35；The wherein calculating of the porosity φ of loose crushed stone soil layer
Formula is
Wherein,The density of pure distilled water, unit g/cm when being 4 DEG C3；The unit of the density p of loose crushed stone soil layer
For g/cm3；Water content ω is mass water content, %；Specific gravity GSFor dimensionless number；
It (2) is 1.73g/cm according to the density p of the loose crushed stone soil layer of step (1)3, water content ω be 2.05%, specific gravity GS
It is 0.35 selection grouting tube (see Fig. 2) for 2.61 and porosity φ, measures the hole between the injected hole of selected grouting tube side
Away from calculating average pitch-row l is 5cm；
(3) design grouting pressure p is 0.25MPa, slip casting fluid ratio of mud w is 1.50 and slip casting time t is 20s, according to
Seed harvest compression strength formula
Fcu=17.462p0.143w-0.685l-0.141t0.036n0.442
Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcuFor 6.06MPa, pressure resistance
Spend Fcu, grouting pressure p, the unit of average pitch-row l is respectively MPa, MPa, s between slip casting time t and grouting tube side injected hole
With cm, the porosity φ of slip casting fluid ratio of mud w and loose crushed stone soil layer is dimensionless number；Wherein slip casting fluid ratio of mud w
Calculation formula is
Wherein, mWaterFor the quality of water needed for configuration slip casting fluid, unit Kg, mInjecting paste materialTo be infused needed for configuration slip casting fluid
The quality of pulp material, Kg；
In the present embodiment, the slip casting Seed harvest compression strength F of actual measurementReal cuFor 5.60MPa, the prediction note being calculated
Starch Seed harvest compression strength FcuWith FReal cuError be | FReal cu-Fcu|/FReal cu× 100%, as 8.21%.
Embodiment 3: a kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, tool
Steps are as follows for body:
(1) density p for the loose crushed stone soil layer that measurement need to reinforce is 1.56g/cm3, water content ω be 5.16% with specific gravity GS
It is 2.69, and the porosity φ for calculating loose crushed stone soil layer is 0.45；The wherein calculating of the porosity φ of loose crushed stone soil layer
Formula is
Wherein,The density of pure distilled water, unit g/cm when being 4 DEG C3；The unit of the density p of loose crushed stone soil layer
For g/cm3；Water content ω is mass water content, %；Specific gravity GSFor dimensionless number；
It (2) is 1.56g/cm according to the density p of the loose crushed stone soil layer of step (1)3, water content ω be 5.16%, specific gravity GSFor
2.69 and porosity φ is 0.45 selection grouting tube (see Fig. 2), measures the pitch-row between the injected hole of selected grouting tube side,
Calculating average pitch-row l is 20cm；
(3) design grouting pressure p is 0.15MPa, slip casting fluid ratio of mud w is 1.00 and slip casting time t is 30s, according to
Seed harvest compression strength formula
Fcu=17.462p0.143w-0.685l-0.141t0.036n0.442
Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcuFor 6.93MPa, pressure resistance
Spend Fcu, grouting pressure p, the unit of average pitch-row l is respectively MPa, MPa, s between slip casting time t and grouting tube side injected hole
With cm, the porosity φ of slip casting fluid ratio of mud w and loose crushed stone soil layer is dimensionless number；Wherein slip casting fluid ratio of mud w
Calculation formula is
Wherein, mWaterFor the quality of water needed for configuration slip casting fluid, unit Kg, mInjecting paste materialTo be infused needed for configuration slip casting fluid
The quality of pulp material, Kg；
In the present embodiment, the slip casting Seed harvest compression strength F of actual measurementReal cuFor 6.44MPa, the prediction note being calculated
Starch Seed harvest compression strength FcuWith FReal cuError be | FReal cu-Fcu|/FReal cu× 100%, as 7.61%.
Specific embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (3)
1. a kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed, which is characterized in that
Specific step is as follows:
(1) density p, water content ω and the specific gravity G for the loose crushed stone soil layer that measurement need to reinforceS, and calculate loose crushed stone soil layer
Porosity φ；
(2) according to the density p of the loose crushed stone soil layer of step (1), water content ω, specific gravity GSGrouting tube is selected with porosity φ, is surveyed
The pitch-row between the injected hole of selected grouting tube side is measured, average pitch-row l is calculated；
(3) grouting pressure p, slip casting fluid ratio of mud w and slip casting time t are designed, according to Seed harvest compression strength formula
Fcu=17.462p0.143w-0.685l-0.141t0.036n0.442
Calculate the Seed harvest compression strength F that the loose crushed stone soil layer of floral tube grouting and reinforcing is formedcu；Compression strength Fcu, grouting pressure
P, the unit of average pitch-row l is respectively MPa, MPa, s and cm, slip casting fluid between slip casting time t and grouting tube side injected hole
The ratio of mud w and porosity φ of loose crushed stone soil layer is dimensionless number.
2. the prediction side for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed according to claim 1
Method, it is characterised in that: the calculation formula of the porosity φ of the loose crushed stone soil layer of step (1) is
Wherein,The density of pure distilled water, unit g/cm when being 4 DEG C3；The unit of the density p of loose crushed stone soil layer is g/
cm3；Water content ω is mass water content, %；Specific gravity GSFor dimensionless number.
3. the prediction side for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed according to claim 1
Method, it is characterised in that: the calculation formula of slip casting fluid ratio of mud w is
Wherein, mWaterFor the quality of water needed for configuration slip casting fluid, unit Kg, mInjecting paste materialFor slip casting material needed for configuration slip casting fluid
The quality of material, Kg.
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| CN201811329494.2A CN109447366A (en) | 2018-11-09 | 2018-11-09 | A kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329494.2A CN109447366A (en) | 2018-11-09 | 2018-11-09 | A kind of prediction technique for the Seed harvest compression strength that the loose crushed stone soil layer of floral tube grouting and reinforcing is formed |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533418A (en) * | 2014-11-19 | 2015-04-22 | 太原理工大学 | Deep hole static rock breaking method for underground coal mine |
| CN104763428A (en) * | 2015-03-10 | 2015-07-08 | 太原理工大学 | Method of classified divisional grouting reinforcement of collapse columns to enable fully mechanized coal face to directly pass soft collapse column |
| CN108195723A (en) * | 2017-11-17 | 2018-06-22 | 昆明理工大学 | A kind of osmotic grouting pilot system and method for reinforcing loose gravelly soil |
| CN108590683A (en) * | 2018-04-04 | 2018-09-28 | 中铁二十五局集团第五工程有限公司 | A kind of rich water stream modeling stratum shield tunnel undercrossing tunnel frame bridge construction method |
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2018
- 2018-11-09 CN CN201811329494.2A patent/CN109447366A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533418A (en) * | 2014-11-19 | 2015-04-22 | 太原理工大学 | Deep hole static rock breaking method for underground coal mine |
| CN104763428A (en) * | 2015-03-10 | 2015-07-08 | 太原理工大学 | Method of classified divisional grouting reinforcement of collapse columns to enable fully mechanized coal face to directly pass soft collapse column |
| CN108195723A (en) * | 2017-11-17 | 2018-06-22 | 昆明理工大学 | A kind of osmotic grouting pilot system and method for reinforcing loose gravelly soil |
| CN108590683A (en) * | 2018-04-04 | 2018-09-28 | 中铁二十五局集团第五工程有限公司 | A kind of rich water stream modeling stratum shield tunnel undercrossing tunnel frame bridge construction method |
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| Title |
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| 杨志全 等: "幂律型流体的柱–半球形渗透注浆机制研究", 《岩石力学与工程学报》 * |
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Application publication date: 20190308 |
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