CN105625292A - Grouting reinforcement effect three-dimensional spatial data acquisition method for weak broken rock body - Google Patents
Grouting reinforcement effect three-dimensional spatial data acquisition method for weak broken rock body Download PDFInfo
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- CN105625292A CN105625292A CN201610076064.9A CN201610076064A CN105625292A CN 105625292 A CN105625292 A CN 105625292A CN 201610076064 A CN201610076064 A CN 201610076064A CN 105625292 A CN105625292 A CN 105625292A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
- E02D1/025—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil combined with sampling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The invention discloses a grouting reinforcement effect three-dimensional spatial data acquisition method for a weak broken rock body. The grouting reinforcement effect three-dimensional spatial data acquisition method for the weak broken rock body comprises the following steps that (1) a multi-order high-recognition-degree grouting model test is implemented; (2) the arrangement of measuring lines is observed and the exposure of a profile is measured; (3) the characteristics of slurry gel are measured and recorded, and an indoor experimental sample is obtained; (4) the three-dimensional distribution pattern of the characteristics of a reinforcing body is described; (5) an indoor soil mechanics test and an indoor hydraulics test are implemented; and (6) the grout diffusion mechanism and the grout reinforcement mode are analyzed. The grouting reinforcement mode can be of a single type such as a compaction type, a permeation type and a fracture type or be of a combined type such as a compaction-fracture type and a permeation-fracture type. A quantitative research method for checking the grouting effect and determining the three-dimensional spatial data of the reinforcing body in the grouting model test is provided for the first time, and the problem that information is excessively lost and cannot be mined comprehensively in the grouting test is solved.
Description
Technical field
The present invention relates to a kind of During Geotechnical Tests data acquisition technology, weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method in especially a kind of indoor grouting test.
Background technology
In the underground engineering construction such as mine, tunnel, often there is the problems such as surrouding rock deformation is big, water yield is big, gushing water even can be occurred to dash forward mud disaster, cause huge personnel's property loss. Slip casting obtains as a kind of effective means a kind of reinforced weak surrounding rock, administer water damage and is increasingly widely applied in underground engineering disasters is administered. The data of current grouting test are extracted except the data monitorings such as soil pressure, osmotic pressure and displacement, slip casting effect inspection has two kinds of approach, one is be filled in little mould before being solidified by mixed grouting and reinforcing body, test mechanical strength and hydraulic parameter, the shortcoming of this method is the anisotropy that can not embody serosity diffusion, can not obtain the information of the Diffusion Law of splitting slurry arteries and veins; Two is utilize to carry out test on the testing stand manually piled up, at local location sampling and testing mechanics and hydraulic parameter after test, or by simple excavation to observe slurry arteries and veins form, it is difficult to take into account slip casting effect inspection and sentences knowledge with slurry arteries and veins spatial shape, cause a large amount of loss of slip casting model test valid data.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method, grouting test data that the method is perfect are extracted and the method for analysis, improve grouting test quality with scientific.
For achieving the above object, the present invention adopts following technical proposals:
A kind of weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method, comprises the following steps:
1. high resolution slip casting model tests of arranging in order are implemented more;
According to test objective, utilize three-dimensional filling system to carry out grouting test of arranging in order more, and meet injecting paste material and the high demand of serosity gelinite resolution.
Further, described slip casting model test, including:
(1) slip casting model test solution formulation: according to experiment purpose, formulates many order slip casting model test schemes, it is determined that test drilling quantity or processing inlet well structure.
(2) grouting device of arranging in order makes more: utilize aluminium flake to make slip casting obstructing instrument, utilizes pvc pipe to make single hole many sequences grouting device.
(3) point sequence injecting paste material preparation: adopt the iron oxides pigment not affecting size performance to add in cement mortar serosity, makes serosity and serosity gelinite embody different colors, to distinguish different order slurry material. According to testing comparison analysis in advance, the iron oxides pigment adopted includes iron oxide blue, iron oxide orange pigments, iron oxide black, iron oxide brown, iron oxide green, iron oxide yellow, iron oxide red, when additive quality respectively reaches 2.3,2.7,1.5,2.0,1.5,1.5,1.5 with dry cement mass values, obvious blueness, orange, black, brownish red, green, yellow and kermesinus is presented after can making cement grout gel, additionally, this type of method also can be used in cement-sodium silicate double liquid.
(4) slip casting process control: carry out slip casting process control by controlling final grouting pressure and slip casting speed, to ensure slip casting effect and slip casting safety.
2. observe arrangement of measuring-line to disclose with measuring section, including:
(1) determination of line direction, quantity and interval of survey line is observed
After grouting test completes, after reinforcing body curing time reaches 24h, opening grouting device of arranging in order more, arrange vertical relations line, survey line should be arranged by parallel inlet well line. Determine interval of survey line according to research precision, generally take 50��100mm. After survey line is reserved, calibration position and sequence number on test platform, it is prevented that entanglement.
(2) observation section discloses method
Slot along survey line first with cutting machine, excavate by the instrument such as electric saw, scoop thereafter, cut out top section or whole section. Wooden rule is placed on rig for model test after disclosing by section, and lower surface is as benchmark 0 line; Wooden rule parallel observation section is laid, and one side is concordant with observation section; On this side, processing has labelling point, according to the serial number of 1,2,3 etc.; Spacing 50mm between labelling point, suitably increases as the case may be or reduces.
3. serosity gelinite feature measures record and the acquisition of laboratory experiment sample
(1) observation cross-sectional data measures and record
Determine coordinate system and direction: design according to grouting test, choosing suitable Descartes's three-dimensional system of coordinate, being typically chosen main grouting port is zero, parallel observation line and be decided to be x-axis positive direction along observed direction, in horizontal plane, vertical x-axis is y-axis, and in observation section, vertical x-axis is z-axis.
Before the cutting of each observation section, No. 1 point of scale is overlapped with observation section starting point, determines the three-dimensional coordinate of each labelling point on scale according to the relative position of filling system end face Yu main grouting port, be recorded in detail.
Draw plumb line from labelling point, primarily determine that the slurry arteries and veins form of plumb line process and the false relation of other slurry arteries and veins. Then utilize steel ruler laminating observation section Vertical surveyors' staff placement, record the slurry arteries and veins information of plumb line process from top to bottom successively, initiate including from scale, starch arteries and veins top, the bottom surface degree of depth, the color of slurry arteries and veins, if starch the information such as pulse-phase friendships with other; These data itemized record are got off, forms initial data.
Utilize scale paper to complete the sketch map of slurry arteries and veins distribution according to the scale of 1:10 or 1:5, utilize the wax crayon of different colours to describe slurry arteries and veins form.
(2) indoor soil mechanics and hydraulic experiment sample obtain
In the reinforcing body cut down, obtain sample, utilize cutting ring to cut, meet shearing test and permeability test requirement
4. reinforcing body characteristic 3 D distributional pattern is described, including:
(1) choose suitable process means and make data electronic disposal
Utilize the data processing toolses such as excel, the data of acquisition are processed, be converted into three dimensional space coordinate, determine slurry arteries and veins thickness, coordinate, slip casting order and the cutting syntagmatic with slurry arteries and veins with other slurry arteries and veins with this.
(2) mapping software is utilized to draw slurry arteries and veins three dimensions spread figure
Utilize related software to draw the three-dimensional spatial distribution form of slurry arteries and veins, analyze slurry arteries and veins Diffusion Law and slurry arteries and veins splitting order, propose to support for slip casting Analysis of Spreading Mechanism
5. indoor soil mechanics and hydraulic experiment
(1) indoor Soil mechanics experiment: utilize ZJ-4 type strain controlling direct shear apparatus to carry out direct shear test, the shearing strength of the soil mechanics test specimen that test cutting ring obtains, the shearing strength of relative analysis diverse location test specimen; Direct shear test is known technology, repeats no more.
(2) indoor water Experiments of Machanics: utilize TST-55 lysimeter to carry out reinforcing body permeability test, the infiltration coefficient of the hydraulics test sample that test cutting ring obtains, the infiltration coefficient of relative analysis diverse location test specimen. Permeability test is known technology, repeats no more.
6. slip casting flooding mechanism and grouting and reinforcing pattern analysis
(1) slip casting flooding mechanism is analyzed, and observes serosity gel form, it is determined that diffusion way: if gelinite is in local spot distribution, then serosity generation diffusion; If gel form is the bulk shapes such as irregular spherical, elliposoidal, then serosity generation densification diffusion; If gel form be connected trunk arteries and veins-point slurry arteries and veins system, then serosity occur splitting diffusion. The mechanical mechanism analysis of slip casting diffusion process is carried out according to serosity diffusion mode;
(2) induction and conclusion grouting and reinforcing pattern, divides grouting and reinforcing mode type according to the leading diffusion mode of serosity. If research range serosity is mainly diffusion, then it is divided into osmosis type reinforcement mode; If research range serosity is mainly densification diffusion, then it is divided into densification type reinforcement mode; If research range serosity is mainly splitting diffusion, then it is divided into splitting type reinforcement mode; If research range serosity is mainly densification diffusion and splitting diffusion, then it is divided into densification-splitting type composite consolidation pattern; If research range serosity is mainly infiltration-splitting diffusion, then it is divided into infiltration-splitting type composite consolidation pattern. On above analysis foundation, sum up the feature of various reinforcement mode.
The present invention proposes weak-fracture zone and reinforces the acquisition methods of the three-dimensional spatial informations such as effect test and reinforcing body mechanics, hydraulics characteristic, and perfect grouting test data are extracted and the method for analysis, improve grouting test quality with scientific. Achieve grouting and reinforcing body space form Accuracy Analysis, serosity the evolving path sentences knowledge and after reinforcing, rock mass mechanics improves degree quantitative assessment with hydraulic properties, provides technical support for grouting and reinforcing theoretical research and numerical analysis.
The present invention has taken into full account reinforcing body physical index spatial distribution heterogeneity rule in model test, the fine excavation method of sectional is utilized to obtain the test sample of different parts, different blocks reinforcing body, and measure, gather slurry arteries and veins distribution mode, improve degree distribution and the Changing Pattern research first hand research technique of offer and data for slip casting model test serosity Diffusion Law, reinforcing body physical index.
Grouting and reinforcing mode division is the monotype such as densification type, osmosis type, splitting type and the compound grouting and reinforcing pattern such as densification-splitting type, infiltration-splitting type by the present invention. Determination with regard to slip casting effect inspection in slip casting model test with reinforcing body three-dimensional space data body first provides Quantitative research method, overcomes the excessive loss of information in grouting test, it is impossible to the difficult problem comprehensively excavated.
This three-dimensional space data acquisition method is simple, simple to operate, carries out the research of slip casting diffusion and Reinforcement Theory lay the foundation for being based further on slip casting model test.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the present invention;
Fig. 2 is many order slurry arteries and veins profile figure that excavation discloses;
Fig. 3 is the result after processing that quantizes.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The three-dimensional spatial distribution rule of degree is improved for ease of physical index in convenient accurately test slip casting model test, the fine excavation method of sectional is utilized to obtain the test sample of different parts, different blocks reinforcing body, and measure, gather slurry arteries and veins distribution mode, improve degree distribution and the Changing Pattern research first hand research technique of offer and data for slip casting model test serosity Diffusion Law, reinforcing body physical index.
Weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method, the steps include:
1. high resolution slip casting model tests of arranging in order are implemented more;
According to test objective, utilize three-dimensional filling system to carry out grouting test of arranging in order more, and meet injecting paste material and the high demand of serosity gelinite resolution.
Further, described slip casting model test, including:
(1) slip casting model test solution formulation: according to experiment purpose, formulates many order slip casting model test schemes, it is determined that test drilling quantity or processing inlet well structure.
(2) grouting device of arranging in order makes more: utilize aluminium flake to make slip casting obstructing instrument, utilizes pvc pipe to make single hole many sequences grouting device.
(3) point sequence injecting paste material preparation: adopt the iron oxides pigment not affecting size performance to add in cement mortar serosity, makes serosity and serosity gelinite embody different colors, to distinguish different order slurry material. According to testing comparison analysis in advance, the iron oxides pigment adopted includes iron oxide blue, iron oxide orange pigments, iron oxide black, iron oxide brown, iron oxide green, iron oxide yellow, iron oxide red, when additive quality respectively reaches 2.3,2.7,1.5,2.0,1.5,1.5,1.5 with dry cement mass values, obvious blueness, orange, black, brownish red, green, yellow and kermesinus is presented after can making cement grout gel, additionally, this type of method also can be used in cement-sodium silicate double liquid.
(4) slip casting process control: carry out slip casting process control by controlling final grouting pressure and slip casting speed, to ensure slip casting effect and slip casting safety.
2. observe arrangement of measuring-line to disclose with measuring section, including:
(1) determination of line direction, quantity and interval of survey line is observed
After grouting test completes, after reinforcing body curing time reaches 24h, opening grouting device of arranging in order more, arrange vertical relations line, survey line should be arranged by parallel inlet well line. Determine interval of survey line according to research precision, generally take 50��100mm. After survey line is reserved, calibration position and sequence number on test platform, it is prevented that entanglement.
(2) observation section discloses method
Slot along survey line first with cutting machine, excavate by the instrument such as electric saw, scoop thereafter, cut out top section or whole section. Wooden rule is placed on rig for model test after disclosing by section, and lower surface is as benchmark 0 line; Wooden rule parallel observation section is laid, and one side is concordant with observation section; On this side, processing has labelling point, according to the serial number of 1,2,3 etc.; Spacing 50mm between labelling point, suitably increases as the case may be or reduces.
3. serosity gelinite feature measures record and the acquisition of laboratory experiment sample
(1) observation cross-sectional data measures and record
Determine coordinate system and direction: design according to grouting test, choosing suitable Descartes's three-dimensional system of coordinate, being typically chosen main grouting port is zero, parallel observation line and be decided to be x-axis positive direction along observed direction, in horizontal plane, vertical x-axis is y-axis, and in observation section, vertical x-axis is z-axis.
Before the cutting of each observation section, No. 1 point of scale is overlapped with observation section starting point, determines the three-dimensional coordinate of each labelling point on scale according to the relative position of filling system end face Yu main grouting port, be recorded in detail.
Draw plumb line from labelling point, primarily determine that the slurry arteries and veins form of plumb line process and the false relation of other slurry arteries and veins. Then utilize steel ruler laminating observation section Vertical surveyors' staff placement, record the slurry arteries and veins information of plumb line process from top to bottom successively, initiate including from scale, starch arteries and veins top, the bottom surface degree of depth, the color of slurry arteries and veins, if starch the information such as pulse-phase friendships with other; These data itemized record are got off, forms initial data.
Utilize scale paper to complete the sketch map of slurry arteries and veins distribution according to the scale of 1:10 or 1:5, utilize the wax crayon of different colours to describe slurry arteries and veins form.
(2) indoor soil mechanics and hydraulic experiment sample obtain
In the reinforcing body cut down, obtain sample, utilize cutting ring to cut, meet shearing test and permeability test requirement
4. reinforcing body characteristic 3 D distributional pattern is described, including:
(1) choose suitable process means and make data electronic disposal
Utilize the data processing toolses such as excel, the data of acquisition are processed, be converted into three dimensional space coordinate, determine slurry arteries and veins thickness, coordinate, slip casting order and the cutting syntagmatic with slurry arteries and veins with other slurry arteries and veins with this.
(2) mapping software is utilized to draw slurry arteries and veins three dimensions spread figure
Utilize related software to draw the three-dimensional spatial distribution form of slurry arteries and veins, analyze slurry arteries and veins Diffusion Law and slurry arteries and veins splitting order, propose to support for slip casting Analysis of Spreading Mechanism
5. indoor soil mechanics and hydraulic experiment
(1) indoor Soil mechanics experiment, utilizes ZJ-4 type strain controlling direct shear apparatus to carry out direct shear test, the shearing strength of the soil mechanics test specimen that test cutting ring obtains, the shearing strength of relative analysis diverse location test specimen. Direct shear test is known technology, repeats no more.
(2) indoor water Experiments of Machanics, utilize TST-55 lysimeter to carry out reinforcing body permeability test, the infiltration coefficient of the hydraulics test sample that test cutting ring obtains, the infiltration coefficient of relative analysis diverse location test specimen. Permeability test is known technology, repeats no more.
6. slip casting flooding mechanism and grouting and reinforcing pattern analysis
(1) slip casting flooding mechanism is analyzed, and observes serosity gel form, it is determined that diffusion way: if gelinite is in local spot distribution, then serosity generation diffusion; If gel form is the bulk shapes such as irregular spherical, elliposoidal, then serosity generation densification diffusion; If gel form be connected trunk arteries and veins-point slurry arteries and veins system, then serosity occur splitting diffusion. The mechanical mechanism analysis of slip casting diffusion process is carried out according to serosity diffusion mode;
(2) induction and conclusion grouting and reinforcing pattern, divides grouting and reinforcing mode type according to the leading diffusion mode of serosity. If research range serosity is mainly diffusion, then it is divided into osmosis type reinforcement mode; If research range serosity is mainly densification diffusion, then it is divided into densification type reinforcement mode; If research range serosity is mainly splitting diffusion, then it is divided into splitting type reinforcement mode; If research range serosity is mainly densification diffusion and splitting diffusion, then it is divided into densification-splitting type composite consolidation pattern; If research range serosity is mainly infiltration-splitting diffusion, then it is divided into infiltration-splitting type composite consolidation pattern. On above analysis foundation, sum up the feature of various reinforcement mode.
The specific embodiment of the present invention is described in conjunction with accompanying drawing although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1. a weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method, is characterized in that, comprises the following steps:
1) high resolution slip casting model test of arranging in order is implemented more, including:
(1) slip casting model test scheme is formulated;
(2) make grouting device of arranging in order more;
(3) preparation point order injecting paste material, adopts the iron oxides pigment not affecting size performance to add in cement mortar serosity, makes serosity and serosity gelinite embody different colors, to distinguish different order slurry material;
(4) slip casting process is controlled;
2) observe arrangement of measuring-line to disclose with measuring section; Including:
(1) observation line direction, quantity and interval of survey line are determined;
(2) observation section discloses method,
Slot along survey line first with cutting machine, thereafter by electric saw, scoop instrument excavation, cut out top section or whole section; Wooden rule is placed on rig for model test after disclosing by section, and lower surface is as benchmark 0 line; Wooden rule parallel observation section is laid, and one side is concordant with observation section; On this side, processing has labelling point, according to 1,2,3 ... the serial number of n; Spacing 50mm between labelling point; N is natural number;
3) serosity gelinite feature measures record and the acquisition of laboratory experiment sample, including:
(1) observation cross-sectional data measures and record;
(2) indoor soil mechanics and hydraulic experiment sample obtain, and obtain sample, utilize cutting ring to cut, meet shearing test and permeability test requirement in the reinforcing body cut down;
4) reinforcing body characteristic 3 D distributional pattern is described; Including:
(1) choose process means and make data electronic disposal, utilize excel as data processing tools, the data of acquisition are processed, is converted into three dimensional space coordinate, determine slurry arteries and veins thickness, coordinate, slip casting order and the cutting syntagmatic with slurry arteries and veins with other slurry arteries and veins with this;
(2) mapping software is utilized to draw slurry arteries and veins three dimensions spread figure;
5) indoor soil mechanics and hydraulic experiment;
6) slip casting flooding mechanism and grouting and reinforcing pattern analysis.
2. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, it is characterized in that, described step 1) in, (1) slip casting model test scheme is formulated: according to experiment purpose, formulate many order slip casting model test schemes, it is determined that test drilling quantity or processing inlet well structure;
(2) make grouting device of arranging in order: utilize aluminium flake to make slip casting obstructing instrument more, utilize pvc pipe to make single hole many sequences grouting device;
(3) preparation point sequence injecting paste material: according to testing comparison analysis in advance, the iron oxides pigment adopted includes iron oxide blue, iron oxide orange pigments, iron oxide black, iron oxide brown, iron oxide green, iron oxide yellow, iron oxide red, when additive quality respectively reaches 2.3,2.7,1.5,2.0,1.5,1.5,1.5 with dry cement mass values, after making cement grout gel, present obvious blueness, orange, black, brownish red, green, yellow and kermesinus;
(4) slip casting process is controlled: carry out slip casting process control by controlling final grouting pressure and slip casting speed, to ensure slip casting effect and slip casting safety.
3. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, it is characterized in that, described step 2) in, determine that observation line direction, quantity and the concrete technology of interval of survey line are: after grouting test completes, after reinforcing body curing time reaches 24h, open grouting device of arranging in order more, arrange vertical relations line, the parallel inlet well line of survey line is arranged, determine interval of survey line according to research precision, take 50��100mm, after survey line is reserved, calibration position and sequence number on test platform, it is prevented that entanglement.
4. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, it is characterized in that, described step 3) in, observation cross-sectional data measures and records concrete technology and is, it is determined that coordinate system and direction: designs according to grouting test, chooses Descartes's three-dimensional system of coordinate, selecting main grouting port is zero, parallel observation line and be decided to be x-axis positive direction along observed direction, in horizontal plane, vertical x-axis is y-axis, and in observation section, vertical x-axis is z-axis;
Before the cutting of each observation section, No. 1 point of scale is overlapped with observation section starting point, determines the three-dimensional coordinate of each labelling point on scale according to the relative position of filling system end face Yu main grouting port, be recorded in detail;
Draw plumb line from labelling point, primarily determine that the slurry arteries and veins form of plumb line process and the false relation of other slurry arteries and veins; Then utilize steel ruler laminating observation section Vertical surveyors' staff to place, record the slurry arteries and veins information of plumb line process from top to bottom successively, initiate including from scale, starch arteries and veins top, the bottom surface degree of depth, the color of slurry arteries and veins, if hand over information with other slurry pulse-phases; These data itemized record are got off, forms initial data;
Utilize scale paper to complete the sketch map of slurry arteries and veins distribution according to the scale of 1:10 or 1:5, utilize the wax crayon of different colours to describe slurry arteries and veins form.
5. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, it is characterized in that, described step 4) in, utilize the three-dimensional spatial distribution form of existing Software on Drawing slurry arteries and veins, analyze slurry arteries and veins Diffusion Law and slurry arteries and veins splitting order, propose to support for slip casting Analysis of Spreading Mechanism.
6. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, is characterized in that, described step 5) including:
(1) indoor Soil mechanics experiment: utilize strain controlling direct shear apparatus to carry out direct shear test, the shearing strength of the soil mechanics test specimen that test cutting ring obtains, the shearing strength of relative analysis diverse location test specimen;
(2) indoor water Experiments of Machanics: utilize lysimeter to carry out reinforcing body permeability test, the infiltration coefficient of the hydraulics test sample that test cutting ring obtains, the infiltration coefficient of relative analysis diverse location test specimen.
7. weak-fracture zone grouting and reinforcing usefulness three-dimensional space data acquisition method as claimed in claim 1, is characterized in that, described step 6) including:
(1) slip casting flooding mechanism is analyzed: observe serosity gel form, it is determined that diffusion way: if gelinite is in local spot distribution, then serosity generation diffusion; If gel form is irregular spherical, elliposoidal bulk shape, then serosity generation densification diffusion; If gel form be connected trunk arteries and veins-point slurry arteries and veins system, then serosity occur splitting diffusion; The mechanical mechanism analysis of slip casting diffusion process is carried out according to serosity diffusion mode;
(2) induction and conclusion grouting and reinforcing pattern: divide grouting and reinforcing mode type according to the leading diffusion mode of serosity, if research range serosity is mainly diffusion, be then divided into osmosis type reinforcement mode; If research range serosity is mainly densification diffusion, then it is divided into densification type reinforcement mode; If research range serosity is mainly splitting diffusion, then it is divided into splitting type reinforcement mode; If research range serosity is mainly densification diffusion and splitting diffusion, then it is divided into densification-splitting type composite consolidation pattern; If research range serosity is mainly infiltration-splitting diffusion, then it is divided into infiltration-splitting type composite consolidation pattern; On above analysis foundation, sum up the feature of various reinforcement mode.
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| CN110529148A (en) * | 2019-07-24 | 2019-12-03 | 中南大学 | It is a kind of for simulating the experimental provision and experimental method of slip casting of banketing |
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| CN107288657B (en) * | 2017-08-04 | 2019-01-29 | 山东科技大学 | The weak cementing rock mass seepage failure area slip casting integrated control method of top of underground |
| CN108036985A (en) * | 2017-12-27 | 2018-05-15 | 刘睿洋 | A kind of fracture grouting slurry arteries and veins makes and infiltration coefficient detection device and method |
| CN108036985B (en) * | 2017-12-27 | 2023-08-11 | 刘睿洋 | Device and method for manufacturing split grouting slurry vein and detecting permeability coefficient |
| CN108412498A (en) * | 2018-03-06 | 2018-08-17 | 山东科技大学 | Freeze sinking construction pit shaft annular causes calamity channel grouting treatment design method |
| CN109975177A (en) * | 2019-04-30 | 2019-07-05 | 中南大学 | A kind of simulation test device and method of horizontal grouting mouth slip casting spreading morphology |
| CN109975177B (en) * | 2019-04-30 | 2023-11-10 | 中南大学 | Simulation test device and method for grouting diffusion form of horizontal grouting port |
| CN110529148A (en) * | 2019-07-24 | 2019-12-03 | 中南大学 | It is a kind of for simulating the experimental provision and experimental method of slip casting of banketing |
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