CN109868791A - The fining grout construction method of cultural relic protection project rock mass microfissure water - Google Patents
The fining grout construction method of cultural relic protection project rock mass microfissure water Download PDFInfo
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- CN109868791A CN109868791A CN201910035393.2A CN201910035393A CN109868791A CN 109868791 A CN109868791 A CN 109868791A CN 201910035393 A CN201910035393 A CN 201910035393A CN 109868791 A CN109868791 A CN 109868791A
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- microfissure
- water
- grouting
- fining
- rock mass
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Abstract
The invention discloses a kind of fining grout construction methods of cultural relic protection project rock mass microfissure water; it gives and improves on the basis of traditional grouting process; it is observed and measured by the accurate positioning of microfissure, to single microfissure; degree is filled according to single microfissure, using different grouting material and grouting pressure.Simultaneously, it is contemplated that construct in historic reservation, constructing operation process may have an adverse effect to historical relic ontology, therefore this method has also set up historical relic safety monitoring system.By this method, can grouting effect and anti-seepage effect effective, that microfissure is greatly improved administer the microfissure water damage of cultural artifact surface under the premise of protecting historical relic ontological security, have the function that finally to protect historical relic.
Description
Technical field
The present invention relates to cultural relic protection projects, are a kind of finings of cultural relic protection project rock mass microfissure water specifically
Grouting method.
Background technique
As a kind of construction method of fissure grouting, mainly apply to grout curtain field.Fissure grouting is well suited for greatly
The drillings such as type hydraulic engineering, large-scale mineral engineering, large-scale industrial and civil architecture, drilling well grouting, its development in recent years is gradually
It is mature.Especially for the grout curtain of large hydraulic engineering, good effect can be played, greatly improves the antiseepage effect of curtain
Fruit.But traditional fissure grouting method is that comparison is thick mainly for bigger big crack (infiltration coefficient is relatively large)
Put the grouting of formula.It is undesirable to the grouting effect of microfissure (< 1mm).Conventional grout method, to surrounding environment influence consider compared with
It is few, it is possible to have an adverse effect to the historical relic ontology of cultural relic protection project.
Summary of the invention
The technical problem to be solved by the present invention is to, it is intended to increase the anti-seepage effect of microfissure grouting, improves fissure grouting
Construction method improve the watertight grouting effect of the microfissure on historical relic ontology, while sufficiently using the means of some finings
Considering, which reduces filling process, under the premise of ensuring historical relic ontological security, to reach best to the adverse effect of historical relic ontology
Microfissure seep water water hazard prediction effect.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: a kind of cultural relic protection project rock mass fine fisssure
The fining grout construction method of gap water, comprising the following steps:
(1) historical relic safety monitoring system is established, monitoring content includes micro-environmental variation, water damage variation, vibration influence, underground
SEA LEVEL VARIATION, the variation of comparison construction front and back monitoring data, ensures historical relic safety；When construction, monitoring data are substantially different from non-
The data of section while when construction, stop construction；
(2) cloth hole is measured, guarantees that the safe distance between historical relic is greater than 6m；
(3) orifice tube is divided into, installs to lift and observe device instrument；
(4) drilling is in place, punches, and using electric drilling machine equipment, reduces influence of the vibration to historical relic ontology；
(5) after the completion of drilling, dowm-hole TV equipment is set up in hell, first carries out the interior photograph taking that drills, then carry out hole
Interior video recording is shot again if it find that achievement is unclear；Field assay dowm-hole TV achievement, determines rock and coating
Boundary depth, determine the depth of each microfissure, and observe and measure its width, filler, be inclined to, move towards information；
(6) drilling cleaning: the data obtained according to step (5) accurately carries out card plug to each crack respectively；Use water
Cleaning method, time control wash pressure is not more than grouting pressure 80% in 5~10min；Brill is repeatedly drained with micro pump
Water in hole guarantees that drilling is interior clean anhydrous, and the water of bottom hole is discharged using compressed air；Again each crack is carried out
Card plug, using air cleaning method, time control observes visible crack dew point water outlet, steam mixing, air in 5~20min
Exposure situation, if unclean, air cleaning repeatedly, until crack it is clean, without water；
(7) data obtained according to step (5) carries out card plug and packer permeability test to single microfissure on pilot hole；
(8) it is in the milk according to the data that step (5) and (7) obtain to the independent card plug of each microfissure；Such as fine fisssure
Gap width is not less than 1mm, and filling proportion, less than 50%, permeability is greater than 10Lu, using solid particless grouting material, grouting pressure
0.3MPa~0.8MPa；As microfissure width be less than 1mm, and filling proportion be greater than 50%, permeability be less than 10Lu, using chemistry
Material, grouting pressure 0.8MPa~1.2MPa；Flow control be in the milk in 5~20L/min；
(9) sealing of hole.
In the step (1), if when construction, monitoring data variation is greater than the 10% of normal value, stop construction.
In the step (8), solid particless grouting material is superfine cement, and chemical material is acrylates.
In the step (6), if Fracture Width is greater than 1cm and filling proportion is less than 50%, washing pressure to pressure of being in the milk
50% or less power.
In the step (6), the mode rinsed using compressed air pulsation carries out microfissure to repeatedly extrude cleaning.
The beneficial effects of the present invention are: fining grout construction method of the invention, can reach each microfissure
Grouting effect, and avoid the adverse effect constructed to historical relic ontology.
Specific embodiment
Invention is further described in detail With reference to embodiment:
The fining grout construction method of cultural relic protection project rock mass microfissure water of the invention, comprising the following steps:
(1) historical relic safety monitoring system is established, monitoring content includes micro-environmental variation, water damage variation, vibration influence, underground
SEA LEVEL VARIATION, the variation of comparison construction front and back monitoring data, ensures historical relic safety；When construction, monitoring data are substantially different from non-
The data of section while when construction, stop construction；
(2) cloth hole is measured, guarantees that the safe distance between historical relic is greater than 6m；
(3) orifice tube is divided into, installs to lift and observe device instrument；
(4) drilling is in place, punches, and using electric drilling machine equipment, reduces influence of the vibration to historical relic ontology；
(5) after the completion of drilling, dowm-hole TV equipment is set up in hell, first carries out the interior photograph taking that drills, then carry out hole
Interior video recording is shot again if it find that achievement is unclear；Field assay dowm-hole TV achievement, determines rock and coating
Boundary depth, determine the depth of each microfissure, and observe and measure its width, filler, be inclined to, move towards information；
(6) drilling cleaning: the data obtained according to step (5) accurately carries out card plug to each crack respectively；Use water
Cleaning method, time control wash pressure is not more than grouting pressure 80% in 5~10min；Brill is repeatedly drained with micro pump
Water in hole guarantees that drilling is interior clean anhydrous, and the water of bottom hole is discharged using compressed air；Again each crack is carried out
Card plug, using air cleaning method, time control observes visible crack dew point water outlet, steam mixing, air in 5~20min
Exposure situation, if unclean, air cleaning repeatedly, until crack it is clean, without water；
(7) data obtained according to step (5) carries out card plug and packer permeability test to single microfissure on pilot hole；
(8) it is in the milk according to the data that step (5) and (7) obtain to the independent card plug of each microfissure；Such as fine fisssure
Gap width is not less than 1mm, and filling proportion, less than 50%, permeability is greater than 10Lu, using solid particless grouting material, grouting pressure
0.3MPa~0.8MPa；As microfissure width be less than 1mm, and filling proportion be greater than 50%, permeability be less than 10Lu, using chemistry
Material, grouting pressure 0.8MPa~1.2MPa；Flow control be in the milk in 5~20L/min；
(9) sealing of hole.
In the step (1), if when construction, monitoring data variation is greater than the 10% of normal value, stop construction.
In the step (8), solid particless grouting material is superfine cement, and chemical material is acrylates.
In the step (6), if Fracture Width is greater than 1cm and filling proportion is less than 50%, washing pressure to pressure of being in the milk
50% or less power.
In the step (6), the mode rinsed using compressed air pulsation carries out microfissure to repeatedly extrude cleaning.
For example, the Chongqing mountain Dazu Rock Carvings Bao Ding giant Buddha gulf water hazard prediction engineering (phase), drilled grout hole is along reclining Buddha upstream at U
Shape arrangement, divides upstream, downstream, three row of middle reaches, and grouting material chooses superfine cement and acrylates.Array pitch 0.5m, pitch-row 1m, at
Plum blossom arrangement.Designing grout hole hole depth is 15m, grouting pressure 0.3MPa~1.2MPa.
For single microfissure, individually fining grouting；As microfissure width is greater than 1mm, and filling proportion is less than 50%,
Permeability is greater than 10Lu, and solid particless grouting material (such as superfine cement), grouting pressure 0.3MPa~0.8MPa can be used；Such as microfissure
Width is less than 1mm, and filling proportion is greater than 50%, and permeability is less than 10Lu, can be used chemical material (such as acrylates), is in the milk
Pressure 0.8MPa~1.2MPa；Flow control be in the milk in 5~20L/min, effect is best.Monitoring data variation is greater than normal value
10%, stop construction.
The present invention is using the actual demand of cultural relic protection project as target, it is intended to by fining, according to analysis, when in drilling
There are when a plurality of microfissure, conventional grouting method can not accurately position microfissure, and observe its width, fill out
The information such as object, tendency, trend are filled, targetedly cannot be effectively in the milk to single microfissure.In traditional grouting method
In, think little of historical relic's protection monitoring, thinks little of the control of the degree of filling of microfissure.It not only may cause the filling insatiable hunger of microfissure
Expire, especially less than the microfissure of 1mm, influences its solidification and anti-seepage effect, and think little of historical relic safety monitoring, it is possible to meeting
Change the water environment of historic reservation, it is possible to have an adverse effect to historical relic ontology.
The present invention is in the milk for the microfissure of cultural relic protection project, takes the grouting construction mode of fining.It adopts first
The microfissure in drilling is accurately positioned and is described one by one with borehole television, then according to the feature of microfissure, to fine fisssure
Gap carries out accurate card plug one by one, using different strengthening motorings, is in the milk for each fine fisssure.The present invention is for carrying out text
When object protects engineering rock mass impervious grouting, fining fissure grouting is carried out to microfissure existing in drilling.Especially suitable for text
Object is protected in seepage control project, is obtained more structurally sound watertight grouting effect and is avoided grouting construction process that from may producing historical relic ontology
Raw adverse effect.
Embodiment described above is merely to illustrate technical idea and feature of the invention, in the art its object is to make
Technical staff it will be appreciated that the contents of the present invention and implement accordingly, patent model of the invention only cannot be limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit are still fallen in the scope of the patents of the invention.
Claims (5)
1. a kind of fining grout construction method of cultural relic protection project rock mass microfissure water, which is characterized in that including following step
It is rapid:
(1) historical relic safety monitoring system is established, monitoring content includes micro-environmental variation, water damage variation, vibration influence, level of ground water
Variation, the variation of comparison construction front and back monitoring data, ensures historical relic safety；When construction, monitoring data are substantially different from non-construction
When while section data, stop construction；
(2) cloth hole is measured, guarantees that the safe distance between historical relic is greater than 6m；
(3) orifice tube is divided into, installs to lift and observe device instrument；
(4) drilling is in place, punches, and using electric drilling machine equipment, reduces influence of the vibration to historical relic ontology；
(5) after the completion of drilling, dowm-hole TV equipment is set up in hell, first carries out the interior photograph taking that drills, then recorded in hole
Picture is shot again if it find that achievement is unclear；Field assay dowm-hole TV achievement determines point of rock and coating
Boundary's depth determines the depth of each microfissure, and observes and measure its width, filler, be inclined to, move towards information；
(6) drilling cleaning: the data obtained according to step (5) accurately carries out card plug to each crack respectively；It washes with water
Method, time control wash pressure is not more than grouting pressure 80% in 5~10min；It is repeatedly drained in drilling with micro pump
Water, guarantee clean anhydrous in drilling, the water of bottom hole is using compressed air discharge；Again each crack is blocked
Plug, using air cleaning method, time control observes visible crack dew point water outlet, steam mixing, air in 5~20min
Exposure situation, if unclean, air cleaning repeatedly, until crack it is clean, without water；
(7) data obtained according to step (5) carries out card plug and packer permeability test to single microfissure on pilot hole；
(8) it is in the milk according to the data that step (5) and (7) obtain to the independent card plug of each microfissure；As microfissure is wide
Degree is not less than 1mm, and filling proportion, less than 50%, permeability is greater than 10Lu, using solid particless grouting material, grouting pressure 0.3MPa
~0.8MPa；As microfissure width is less than 1mm, and filling proportion is greater than 50%, and permeability is less than 10Lu, using chemical material,
Grouting pressure 0.8MPa~1.2MPa；Flow control be in the milk in 5~20L/min；
(9) sealing of hole.
2. the fining grout construction method of cultural relic protection project rock mass microfissure water, feature exist according to claim 1
In in the step (1), if when construction, monitoring data variation is greater than the 10% of normal value, stopping construction.
3. the fining grout construction method of cultural relic protection project rock mass microfissure water, feature exist according to claim 1
In in the step (8), solid particless grouting material is superfine cement, and chemical material is acrylates.
4. the fining grout construction method of cultural relic protection project rock mass microfissure water, feature exist according to claim 1
In in the step (6), if Fracture Width is greater than 1cm and filling proportion is less than 50%, washing pressure to grouting pressure
50% or less.
5. the fining grout construction method of cultural relic protection project rock mass microfissure water, feature exist according to claim 1
In in the step (6), the mode rinsed using compressed air pulsation carries out microfissure to repeatedly extrude cleaning.
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| CN201910035393.2A CN109868791A (en) | 2019-01-15 | 2019-01-15 | The fining grout construction method of cultural relic protection project rock mass microfissure water |
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| CN201910035393.2A CN109868791A (en) | 2019-01-15 | 2019-01-15 | The fining grout construction method of cultural relic protection project rock mass microfissure water |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675135A (en) * | 2013-11-29 | 2015-06-03 | 卜海军 | Repairing method of carved stone cave eaves of stone cave temple |
| CN106437680A (en) * | 2016-12-05 | 2017-02-22 | 山东科技大学 | Fissure measuring device matched with borehole television imager and using method |
| CN106917409A (en) * | 2017-03-27 | 2017-07-04 | 中国水利水电第四工程局有限公司 | A kind of rock lid weight consolidation grouting construction method |
| KR20180002841U (en) * | 2017-12-28 | 2018-10-04 | (주)재원기초 | Grouting equipment with rope, twin pump, check valve, pulsation reducing tank |
-
2019
- 2019-01-15 CN CN201910035393.2A patent/CN109868791A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675135A (en) * | 2013-11-29 | 2015-06-03 | 卜海军 | Repairing method of carved stone cave eaves of stone cave temple |
| CN106437680A (en) * | 2016-12-05 | 2017-02-22 | 山东科技大学 | Fissure measuring device matched with borehole television imager and using method |
| CN106917409A (en) * | 2017-03-27 | 2017-07-04 | 中国水利水电第四工程局有限公司 | A kind of rock lid weight consolidation grouting construction method |
| KR20180002841U (en) * | 2017-12-28 | 2018-10-04 | (주)재원기초 | Grouting equipment with rope, twin pump, check valve, pulsation reducing tank |
Non-Patent Citations (2)
| Title |
|---|
| 罗畅等: "变质砂岩地质条件下的帷幕灌浆试验研究", 《水利水电技术》 * |
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Application publication date: 20190611 |