CN115821888B - Repair method of sea corrosion column - Google Patents
Repair method of sea corrosion column Download PDFInfo
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- CN115821888B CN115821888B CN202211511896.0A CN202211511896A CN115821888B CN 115821888 B CN115821888 B CN 115821888B CN 202211511896 A CN202211511896 A CN 202211511896A CN 115821888 B CN115821888 B CN 115821888B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 80
- 230000007797 corrosion Effects 0.000 title claims abstract description 58
- 230000008439 repair process Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 107
- 230000000813 microbial effect Effects 0.000 claims abstract description 76
- 244000005700 microbiome Species 0.000 claims abstract description 57
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000012466 permeate Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000011049 filling Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000010586 diagram Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 5
- 238000005530 etching Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 235000019994 cava Nutrition 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 239000004575 stone Substances 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 108010046334 Urease Proteins 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
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- -1 ammonium ions Chemical class 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a repair method of a sea corrosion column, which belongs to the technical field of rock repair and comprises the following steps: for the sea etching column collapsed into a plurality of parts, based on the rest base of the sea etching column, dividing each part except the base into a main part and a secondary part according to screening conditions; the main part is connected with the base through a reinforcing steel bar, and meanwhile, the main part is bonded with the base through microorganism slurry; backfilling the concave positions and the caves with fillers and grouting with microbial slurry; grouting cracks on the sea corrosion column to enable the microbial slurry to permeate in the cracks until the microbial slurry is gelled and solidified, and completing crack filling; spraying microbial slurry on the outer surface of the sea corrosion column to form a microbial coating film, and finishing repair; wherein the microbial flora in the microbial slurry is extracted from the sea corrosion column. The reinforcing steel bars are matched with the microorganism slurry for use, and on the basis of mechanical hard connection, the performance of the repairing material is further improved by being matched with microorganism repairing.
Description
Technical Field
The invention relates to the technical field of rock repair, in particular to a repair method of a sea corrosion column.
Background
The sea corrosion column is a sea shore erosion topography phenomenon, and the sea shore is eroded by sea waves and is slumped to form a rock column separated from the sea shore, so that the sea shore has higher ornamental value. As the sea-corrosion column is exposed to the natural environment for a long time, it is subjected to the compound influence of various factors, and various diseases such as rock mass breaking, crack enlargement and even collapse occur. Therefore, repair and protection of the sea-corrosion column is necessary.
In recent years, the reinforcement technology of microorganism-induced calcium carbonate precipitation (MICP) has made up the limitations of conventional repair methods in engineering applications. The principle is that some bacteria produce urease through metabolism, urea is hydrolyzed under the catalysis of the urease to produce ammonium ions and carbonate ions, the surface of the microorganism has integral negative charge, positive charged cations are continuously deposited, and calcium carbonate crystals with gelation and filling effects are separated out from carbonate ions generated by hydrolyzing urea.
The MICP technology has the induction product of calcium carbonate crystallization, has good compatibility and interfacial strength with stone material with calcium carbonate as a main component, uses bacteria liquid and nutrient salt with strong fluidity to perform grouting on damaged parts in the repairing process, and has strong infiltration performance (a pressure grouting mode can be adopted).
MICP technology has been applied to fracture plugging, but there is no repair solution for collapsed sea-etched columns. Typically, the post collapses into several parts, as the perimeter of the post is seawater, and smaller parts may be washed away by the seawater. For larger parts, repair cannot be accomplished with microbial grouting alone.
Disclosure of Invention
The invention aims to provide a repair method of a sea corrosion column, which aims to solve the technical problem of sea corrosion column collapse in the prior art.
The technical scheme adopted by the invention is as follows:
A method of repairing a sea-etched column comprising:
screening and classifying: for the sea etching column collapsed into a plurality of parts, based on the rest base of the sea etching column, dividing each part except the base into a main part and a secondary part according to screening conditions;
Primary repair: the main part is connected with the base through a reinforcing steel bar, and meanwhile, the main part is bonded with the base through microorganism slurry;
Primary repair: backfilling the concave position and the cave on the primarily repaired sea-corrosion column with a filler, and grouting with microbial slurry to enable the filler to be integrated;
And (3) secondary repair: grouting the cracks on the first-stage repaired sea corrosion column to enable the microbial slurry to permeate into the cracks until the microbial slurry is gelled and solidified, and completing crack filling;
final stage repair: spraying microbial slurry on the outer surface of the sea-corrosion column repaired in the second stage to form a microbial coating film, so as to finish the repair;
Wherein the microbial flora in the microbial slurry is extracted from the sea corrosion column.
Wherein, in the primary repair, it includes:
S11, a first mounting hole is formed in the base, and a second mounting hole is formed in the main part of the base;
S12, after the reinforcing steel bar is penetrated into the first mounting hole, injecting microorganism slurry into the first mounting hole, so that the microorganism slurry permeates into the first mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar and the base;
s13, sleeving the main part on the steel bar through the second mounting hole.
Wherein, between S12 and S13, further comprising:
S121, coating microorganism slurry on the fracture surface of the base, and/or coating microorganism slurry on the fracture surface of the main part;
In S13, when the main part is sleeved on the reinforcing steel bar, the fracture surface of the main part is attached to the fracture surface of the base, and when the microbial slurry is gelled and solidified, the main part is adhered to the base.
In S11, when the first mounting hole is formed in the base, the slit on the base is avoided.
Wherein, the second mounting hole is the through-hole, after S13, still includes:
s14, injecting microorganism slurry into the second mounting hole, so that the microorganism slurry permeates into the second mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar and the main part.
In the primary repair, two adjacent main parts are connected through steel bars and are bonded through microorganism slurry.
Wherein the filler comprises a minor portion and a stone block.
Wherein, before screening classification, comprises:
s01, acquiring three-dimensional data and crack positions of a sea corrosion column to be repaired, and establishing a three-dimensional model of the sea corrosion column in a computer according to the three-dimensional data;
s02, performing simulation restoration on the three-dimensional model, and sketching the development trend of the crack to obtain a crack development position diagram.
In the second-stage repair, the cracks on the sea corrosion column are grouting according to the crack development position diagram.
In S01, three-dimensional data and crack positions of the sea-corrosion column to be repaired are acquired through geological radar survey and acoustic wave detection.
The invention has the beneficial effects that:
According to the repair method of the sea-corrosion column, the main part is connected with the base through the reinforcing steel bars based on the rest base of the sea-corrosion column, and meanwhile, the main part is bonded with the base through the microbial slurry; the reinforcing steel bars not only have a connecting effect, but also have a certain supporting effect, so that the repaired sea corrosion column is more stable. Backfilling the concave position and the cave on the primarily repaired sea-corrosion column with a filler, and grouting with microbial slurry to enable the filler to be integrated; grouting the cracks on the first-stage repaired sea corrosion column to enable the microbial slurry to permeate into the cracks until the microbial slurry is gelled and solidified, and completing crack filling; and spraying microbial slurry on the outer surface of the sea corrosion column subjected to secondary repair to form a microbial coating, thereby completing repair. The reinforcing steel bars are matched with the microorganism slurry for use, and on the basis of mechanical hard connection, the performance of the repairing material is further improved by being matched with microorganism repairing. The microbial flora in the microbial slurry is extracted from the sea corrosion column, so that the microbial slurry is matched with the sea corrosion column to be repaired, the texture after repair is basically the same as that of the original sea corrosion column, and the original appearance of the sea corrosion column is maintained to the greatest extent.
Drawings
FIG. 1 is a schematic view of a sea-corrosion column according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a sea-corrosion column according to a second embodiment of the present invention;
fig. 3 is a schematic view of another sea-corrosion column according to the second embodiment of the present invention.
In the figure:
1. A base; 2. a main part; 21. a first portion; 22. a second portion; 3. reinforcing steel bars.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
Referring to fig. 1, an embodiment of the invention provides a method for repairing a sea corrosion column, which can repair a collapsed sea corrosion column. A method of repairing a sea-corrosion column comprising:
Screening and classifying: for the sea corrosion column collapsed into a plurality of parts, based on the rest base 1 of the sea corrosion column, dividing each part except the base 1 into a main part 2 and a secondary part according to screening conditions;
primary repair: connecting the main part 2 with the base 1 through the reinforcing steel bars 3, and simultaneously bonding the main part 2 with the base 1 through microorganism slurry;
Primary repair: backfilling the concave position and the cave on the primarily repaired sea-corrosion column with a filler, and grouting with microbial slurry to enable the filler to be integrated;
And (3) secondary repair: grouting the cracks on the first-stage repaired sea corrosion column to enable the microbial slurry to permeate into the cracks until the microbial slurry is gelled and solidified, and completing crack filling;
final stage repair: spraying microbial slurry on the outer surface of the sea-corrosion column repaired in the second stage to form a microbial coating film, so as to finish the repair;
Wherein the microbial flora in the microbial slurry is extracted from the sea corrosion column.
The steel bar 3 not only has a connecting function, but also has a certain supporting function, so that the repaired sea corrosion column is more stable. The microbial flora in the microbial slurry is extracted from the sea corrosion column, so that the microbial slurry is matched with the sea corrosion column to be repaired, the texture and the color of the repaired sea corrosion column are basically the same as those of the original sea corrosion column, and the original appearance of the sea corrosion column is maintained to the greatest extent. The reinforcing steel bar 3 is matched with microorganism slurry for use, and is matched with microorganism repair on the basis of mechanical hard connection, so that physical and chemical repair modes are combined, and the performance of the repair material is further improved.
Microbial mortars are also essentially gelled with particulate matter as a backbone using microbial-induced calcium carbonate crystals. The microbial flora is extracted from the original sea corrosion column, and the microbial flora is applied to the repair and protection of the sea corrosion column, and has the advantages of strong binding capacity and strong controllability.
The microbial slurry is the existing slurry and is basically a mixture of microbial liquid and nutrient solution, and if necessary, sand and stone can be added into the slurry, so that the slurry added with sand and stone has higher viscosity, and larger pores can be conveniently filled. The amount of the added sand can be set according to actual needs, and the sand and the microbial slurry do not generate chemical reaction, and the sand and the microbial slurry are physically mixed.
In general, the upper portion of the sea-corrosion column will collapse, while the bottom portion will remain, the portion remaining at the bottom portion may serve as the base 1, the volumes of the portions formed after the collapse of the upper portion are different, the portion with the larger volume may serve as the primary portion 2, and the portion with the smaller volume may serve as the secondary portion.
In screening and classifying, the screening conditions not only comprise the volume of each part, but also comprehensively consider the hardness and crack distribution of each part.
Since the sea-etched columns are large in volume and collapse is mostly broken at weak links, in many cases the sea-etched columns collapse to form the base 1 and one main part 2. In the present embodiment, description will be made taking one main portion 2 as an example.
In a primary repair, comprising:
s11, a first mounting hole is formed in the base 1, and a second mounting hole is formed in the main part 2;
s12, after the steel bar 3 is penetrated into the first mounting hole, injecting microorganism slurry into the first mounting hole, so that the microorganism slurry permeates into the first mounting hole until the microorganism slurry is gelled and solidified, and fixing the steel bar 3 and the base 1 is completed;
and S13, sleeving the main part 2 on the steel bar 3 through the second mounting hole.
In first mounting hole, microorganism thick liquid surrounds reinforcing bar 3, forms the protection to reinforcing bar 3, prevents that water from permeating first mounting hole, avoids reinforcing bar 3 corrosion, increase of service life.
The above-mentioned adoption is firstly inserting reinforcing bar 3 and locating first mounting hole, the mode of inserting reinforcing bar 3 into the second mounting hole again, can also be, firstly inserting reinforcing bar 3 and locating the second mounting hole, inserts reinforcing bar 3 into first mounting hole again, for example: after the steel bar 3 is penetrated into the second mounting hole, injecting microorganism slurry into the second mounting hole, so that the microorganism slurry permeates into the second mounting hole until the microorganism slurry is gelled and solidified, and fixing the steel bar 3 and the main part 2 is completed; the steel bar 3 is arranged in the first mounting hole in a penetrating way, so that the main part 2 is abutted with the base 1.
Between S12 and S13, further comprising:
s121, coating microorganism slurry on the fracture surface of the base 1 and/or coating microorganism slurry on the fracture surface of the main part 2;
In S13, when the main part 2 is fitted over the reinforcing bar 3, the fracture surface of the main part 2 is bonded to the fracture surface of the base 1, and the main part 2 is bonded to the base 1 after the microbial slurry is gelled and solidified.
The fracture surfaces are bonded by the microbial slurry, so that the contact area between the main part 2 and the base 1 is increased, and the repair is more stable.
In S11, when the first mounting hole is formed in the base 1, the gap in the base 1 is avoided to ensure structural strength, so the reinforcing bar 3 may extend in the vertical direction or may extend obliquely, which is not limited herein. It will be appreciated that the number of bars 3 may be selected according to the actual circumstances.
In order to prevent water from entering the second mounting hole, in this embodiment, the second mounting hole is a through hole, and after S13, the method further includes:
And S14, injecting microorganism slurry into the second mounting hole, so that the microorganism slurry permeates into the second mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar 3 and the main part 2 is completed.
In the second mounting hole, microorganism thick liquid surrounds reinforcing bar 3, forms the protection to reinforcing bar 3, prevents water infiltration second mounting hole, avoids reinforcing bar 3 corrosion, increase of service life. Although the second mounting holes are through holes, as the microorganism slurry is injected, the microorganism slurry is gelled and solidified, and the filling of the second mounting holes is completed, so that the structural strength is not affected.
For the edge of the chassis 1 bordering the main part 2, it is possible to smooth with a microbial slurry.
In primary repair, the filler includes a secondary portion and a stone block. The secondary part is used as a filler, so that the rock of the sea corrosion column can be used more, and the texture and the original appearance are ensured; under the condition of more concave positions and caves, stone filling can be added to ensure the stability of repair. After the filler is filled in place, the filler is grouted by microorganism slurry, so that the filler is coagulated into a whole, and the structural strength is ensured.
Microorganism grouting techniques are known in the art, i.e. filling the filler with a microorganism slurry under pressure, which may be provided by a pump. Grouting can be accomplished in one pass or in multiple passes to ensure adequate penetration and solidification of the microbial slurry.
It will be appreciated that the recess and cavity, which are of particular ornamental value to the post itself, may not be filled.
In the secondary repair, the location of the fracture is grouted with a microbial slurry so that the microbial slurry penetrates within the fracture until the microbial slurry gels and solidifies. The filling of the cracks can prevent water from penetrating into the cracks, and the structural strength and the service life of the sea corrosion column are improved.
The microorganism grouting technology is the prior art, and is the same as the microorganism grouting principle, namely microorganism slurry is injected into the cracks under the action of pressure, and the pressure can be provided by a pump. Grouting can be completed once or divided into a plurality of times to ensure that the microbial slurry is fully infiltrated and solidified.
In the final repair, the outer surface of the sea corrosion column is sprayed with microbial slurry to form a microbial coating. The microbial coating can prevent seawater from corroding the sea corrosion column, and the structural strength and the service life of the sea corrosion column are improved.
Prior to performing the screening classification, it includes:
s01, acquiring three-dimensional data and crack positions of a sea corrosion column to be repaired, and establishing a three-dimensional model of the sea corrosion column in a computer according to the three-dimensional data;
s02, performing simulation restoration on the three-dimensional model, and sketching the development trend of the crack to obtain a crack development position diagram.
Through data acquisition, the sea corrosion column is more comprehensively known, and a targeted scheme is convenient to formulate.
In the second-stage repair, the cracks on the sea corrosion column are grouting according to the crack development position diagram. The method has the advantages of pertinence, quicker crack filling and better effect.
In S01, three-dimensional data and fracture locations of the sea-corrosion column to be repaired are acquired by geological radar survey and acoustic detection. The three-dimensional data comprise the shape and the size of the sea corrosion column, and the setting position of the steel bar 3 can be determined according to the obtained three-dimensional data, so that the steel bar 3 can play a better supporting role on the sea corrosion column.
Example two
Fig. 2 and 3 show a second embodiment, wherein the same or corresponding parts as in the first embodiment are given the same reference numerals as in the first embodiment. For simplicity, only the points of distinction between the second embodiment and the first embodiment will be described. The difference is that for the two main parts 2 that need to be joined, in the primary repair, the two main parts 2 are joined by the rebar 3 and bonded by the microbial slurry.
When the collapsed sea-corrosion column has two main parts 2, it is possible that both main parts 2 are directly connected to the base 1, and both main parts 2 are connected to two positions of the base 1; it is also possible that the base 1, one main part 2 and the other main part 2 are connected in sequence from bottom to top.
For convenience of description, the two main parts 2 are divided into a first part 21 and a second part 22. The base 1 is provided with a first mounting hole, the first part 21 is provided with a second mounting hole, and the second part 22 is provided with a third mounting hole.
Referring to fig. 2, the first portion 21 is connected to a first position of the base 1 and the second portion 22 is connected to a second position of the base 1.
Specifically, after the reinforcing steel bar 3 is penetrated into the first mounting hole, injecting microorganism slurry into the first mounting hole, so that the microorganism slurry permeates into the first mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar 3 and the base 1 is completed. The plurality of reinforcing bars 3 on the base 1 are all fixed in the above manner.
The fractured surface of the base 1 is coated with the microbial slurry and/or the fractured surface of the first portion 21 is coated with the microbial slurry. The first part 21 is sleeved on the reinforcing steel bar 3 through the second mounting hole, the fracture surface of the first part 21 is attached to the fracture surface of the base 1, and after the microbial slurry is gelled and solidified, the first part 21 is adhered to the base 1.
The fractured surface of the base 1 is coated with the microbial slurry and/or the fractured surface of the second portion 22 is coated with the microbial slurry. The second part 22 is sleeved on the reinforcing steel bar 3 through a third mounting hole, the fracture surface of the second part 22 is attached to the fracture surface of the base 1, and after the microbial slurry is gelled and solidified, the second part 22 is adhered to the base 1.
The second mounting hole and the third mounting hole may be through holes and filled with the microorganism slurry.
Referring to fig. 3, the first portion 21 is connected to the base 1, and the second portion 22 is connected to the first portion 21.
Specifically, after the reinforcing steel bar 3 is penetrated into the first mounting hole, injecting microorganism slurry into the first mounting hole, so that the microorganism slurry permeates into the first mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar 3 and the base 1 is completed.
The fractured surface of the base 1 is coated with the microbial slurry and/or the fractured surface of the first portion 21 is coated with the microbial slurry. The first part 21 is sleeved on the reinforcing steel bar 3 through the second mounting hole, the fracture surface of the first part 21 is attached to the fracture surface of the base 1, and after the microbial slurry is gelled and solidified, the first part 21 is adhered to the base 1.
When the second mounting hole connected with the base 1 is a through hole, the reinforcing steel bar 3 may pass through the second mounting hole.
The first portion 21 is coated with a microbial slurry on the fracture surface and/or the second portion 22 is coated with a microbial slurry on the fracture surface. The second part 22 is sleeved on the reinforcing steel bar 3 through a third mounting hole, the fracture surface of the second part 22 is attached to the fracture surface of the first part 21, and after the microbial slurry is gelled and solidified, the second part 22 is adhered to the first part 21.
The above embodiments merely illustrate the basic principle and features of the present invention, and the present invention is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The method for repairing the sea corrosion column is characterized by comprising the following steps:
Screening and classifying: for the sea corrosion column collapsed into a plurality of parts, based on the rest base (1) of the sea corrosion column, dividing each part except the base (1) into a main part (2) and a secondary part according to screening conditions;
Primary repair: the main part (2) is connected with the base (1) through the reinforcing steel bars (3), and meanwhile, the main part (2) is bonded with the base (1) through microorganism slurry;
Primary repair: backfilling the concave position and the cave on the primarily repaired sea-corrosion column with a filler, and grouting with microbial slurry to enable the filler to be integrated;
And (3) secondary repair: grouting the cracks on the first-stage repaired sea corrosion column to enable the microbial slurry to permeate into the cracks until the microbial slurry is gelled and solidified, and completing crack filling;
final stage repair: spraying microbial slurry on the outer surface of the sea-corrosion column repaired in the second stage to form a microbial coating film, so as to finish the repair;
wherein the microbial flora in the microbial slurry is extracted from the sea corrosion column;
in a primary repair, comprising:
S11, a first mounting hole is formed in the base (1), and a second mounting hole is formed in the main part (2);
S12, after the steel bar (3) is penetrated into the first mounting hole, injecting microorganism slurry into the first mounting hole, so that the microorganism slurry permeates into the first mounting hole until the microorganism slurry is gelled and solidified, and fixing the steel bar (3) and the base (1) is completed;
s13, sleeving the main part (2) on the steel bar (3) through a second mounting hole;
between S12 and S13, further comprising:
s121, coating microorganism slurry on the fracture surface of the base (1) and/or coating microorganism slurry on the fracture surface of the main part (2);
In S13, when the main part (2) is sleeved on the steel bar (3), the fracture surface of the main part (2) is attached to the fracture surface of the base (1), and when the microbial slurry is gelled and solidified, the main part (2) is adhered to the base (1);
the second mounting hole is a through hole, and after S13, the method further includes:
s14, injecting microorganism slurry into the second mounting hole, so that the microorganism slurry permeates into the second mounting hole until the microorganism slurry is gelled and solidified, and fixing the reinforcing steel bar (3) and the main part (2) is completed;
Prior to performing the screening classification, it includes:
s01, acquiring three-dimensional data and crack positions of a sea corrosion column to be repaired, and establishing a three-dimensional model of the sea corrosion column in a computer according to the three-dimensional data;
S02, performing simulation restoration on the three-dimensional model, and sketching the development trend of the crack to obtain a crack development position diagram;
In the second-stage repair, grouting cracks on the sea corrosion column according to a crack development position diagram;
the filler includes a minor portion and a boulder.
2. The method for repairing a sea corrosion column according to claim 1, wherein in S11, when the first mounting hole is opened in the base (1), the crack in the base (1) is avoided.
3. A method of repairing a sea-corrosion column according to claim 1, characterized in that in the primary repair, two adjacent main sections (2) are connected by means of reinforcing bars (3) and bonded by means of microbial slurry.
4. The method of repairing a sea-corrosion column according to claim 1, wherein in S01, three-dimensional data and fracture locations of the sea-corrosion column to be repaired are acquired by geological radar survey and acoustic detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211511896.0A CN115821888B (en) | 2022-11-29 | 2022-11-29 | Repair method of sea corrosion column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211511896.0A CN115821888B (en) | 2022-11-29 | 2022-11-29 | Repair method of sea corrosion column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115821888A CN115821888A (en) | 2023-03-21 |
| CN115821888B true CN115821888B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202211511896.0A Active CN115821888B (en) | 2022-11-29 | 2022-11-29 | Repair method of sea corrosion column |
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| CN111959180A (en) * | 2020-08-13 | 2020-11-20 | 南京林业大学 | Rockery stone connecting piece and rockery digital construction method and disassembly reconstruction method thereof |
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| CN215888285U (en) * | 2021-07-09 | 2022-02-22 | 福建省地质工程勘察院 | Hillock ecological prevention and control structure based on microorganism deposit calcium carbonate technique |
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| CN105672240B (en) * | 2016-01-25 | 2017-06-27 | 黄河勘测规划设计有限公司 | Inclining destruction type Dangerous Rock Body administering method |
| CN106949337B (en) * | 2017-03-30 | 2020-02-04 | 中国十九冶集团有限公司 | Method for repairing collapsed liner of hot air pipeline |
| CN108914948A (en) * | 2018-05-17 | 2018-11-30 | 广东卓建实业集团有限公司 | Breakage mountain body restorative procedure |
| CN109235461A (en) * | 2018-09-04 | 2019-01-18 | 罗鼎 | A kind of method of the anti-avalanche of karst topography area limestone massif |
| CN109355992B (en) * | 2018-10-16 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Karst area sudden collapse prevention roadbed structure and construction method |
| CN111454726B (en) * | 2020-04-26 | 2021-03-23 | 三峡大学 | Microbial capsule applied to dangerous rock body reinforcement and construction process |
| CN111877269A (en) * | 2020-06-24 | 2020-11-03 | 重庆大学 | Method for repairing poor rock mass in hydro-fluctuation belt of reservoir area by microorganisms |
| CN213143121U (en) * | 2020-09-07 | 2021-05-07 | 贵州省交通规划勘察设计研究院股份有限公司 | Retaining wall and enlarged base are stress structure in coordination |
| CN112198025B (en) * | 2020-09-29 | 2021-12-31 | 中国海洋大学 | Test method for plugging rock cracks based on microbial grouting technology |
| CN113882407B (en) * | 2021-11-11 | 2023-05-05 | 南京大学 | Landslide control method based on microbial mineralization |
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| CN111959180A (en) * | 2020-08-13 | 2020-11-20 | 南京林业大学 | Rockery stone connecting piece and rockery digital construction method and disassembly reconstruction method thereof |
| CN112965135A (en) * | 2021-01-28 | 2021-06-15 | 长安大学 | Nondestructive detection comprehensive method for spatial heterogeneous distribution of grotto cliff body fractures |
| CN215888285U (en) * | 2021-07-09 | 2022-02-22 | 福建省地质工程勘察院 | Hillock ecological prevention and control structure based on microorganism deposit calcium carbonate technique |
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