CN110820450A - Horizontal reinforcing and reverse construction method for road - Google Patents
Horizontal reinforcing and reverse construction method for road Download PDFInfo
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- CN110820450A CN110820450A CN201911121589.XA CN201911121589A CN110820450A CN 110820450 A CN110820450 A CN 110820450A CN 201911121589 A CN201911121589 A CN 201911121589A CN 110820450 A CN110820450 A CN 110820450A
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- road
- reinforcement
- grouting
- horizontal
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
Abstract
The invention discloses a road horizontal reinforcement reverse construction method, which comprises the following steps: step 1, performing geological exploration on a pre-reinforced road to obtain a geological exploration report of the road; step 2, performing deflection detection on the outer side of the road to obtain the structure of the road; step 3, determining a construction drawing and a construction scheme according to the geological exploration report of the road and the structure of the road; step 4, carrying out horizontal drilling construction on the road, and horizontally reinforcing one side or two sides of the road; step 5, performing secondary exploration on the reinforced road and obtaining a secondary exploration report; step 6, grouting reinforcement is carried out on the road according to the secondary exploration report; step 7, curing the road after grouting reinforcement; and 8, performing deflection detection on the road after the maintenance, and testing the road. By adopting the road reverse construction method, the bearing capacity and the stability of the road are improved by adopting single-side or double-side horizontal reinforcement outside the road, the damage to the original road structure is reduced, and the influence on the existing traffic is reduced.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a horizontal reinforcing and reverse construction method for a road.
Background
With the development of social economy, traffic is an important factor for restriction. Good traffic conditions can promote logistics circulation and talent flow, poor traffic can restrict or even have negative effects on economic development, for example, crowded traffic conditions can increase the attendance time of people and increase the traffic trip cost, poor traffic conditions can increase the traffic transportation time, and the method is a great disaster for certain products such as fruits, vegetables and food with short shelf life which need to be kept fresh.
Thus, as traffic volume and carrying capacity increase, there is a need to increase the level of traffic in or between cities. And newly building a road or widening an existing road or increasing the bearing capacity is a way of improving the grade of the road. However, in the existing road upgrading construction process, construction needs to be performed from top to bottom, and in the construction process, corresponding construction roads cannot pass, so that residents need to go around and go away to increase the attendance time, and on the other hand, the traffic and pedestrian flow of the roads are diverted to other roads, which may cause huge traffic pressure.
Therefore, how to upgrade the road efficiently and quickly and generate new traffic pressure as little as possible is a technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention provides a road horizontal reinforcement reverse construction method, which saves construction time and cost and reduces the influence on the existing traffic.
In order to solve the above technical problem, an embodiment of the present invention provides a road horizontal reinforcement reverse construction method, including:
step 1, performing geological exploration on a pre-reinforced road to obtain a geological exploration report of the road;
step 2, performing deflection detection on the outer side of the road to obtain the structure of the road;
step 3, determining a construction drawing and a construction scheme according to the geological exploration report of the road and the structure of the road;
step 4, carrying out horizontal drilling construction on the road, and horizontally reinforcing one side or two sides of the road;
step 5, performing secondary exploration on the reinforced road and obtaining a secondary exploration report;
step 6, grouting reinforcement is carried out on the road according to the secondary exploration report;
step 7, curing the road after grouting reinforcement;
and 8, performing deflection detection on the road after the maintenance, and checking and accepting the road.
Wherein the step 4 comprises:
and carrying out excavation drilling construction on the outer side of the road or carrying out non-excavation drilling construction on the outer side of the road, wherein the non-excavation drilling construction on the outer side of the road comprises the steps of adopting surface horizontal directional drilling or adopting a pipe ramming method to carry out non-excavation drilling construction on the outer side of the road.
Wherein reinforcing one or both sides of the road comprises:
and carrying out internal extrusion reinforcement, horizontal grouting reinforcement or reinforcement on one side or two sides of the road.
Wherein, the internal extrusion reinforcement comprises water swelling reinforcement, horizontal rammed sand reinforcement and quicklime powder stirring soil reinforcement.
The horizontal grouting reinforcement comprises biological enzyme grouting reinforcement, high-pressure grouting reinforcement, stirring grouting reinforcement, splitting grouting reinforcement, high-pressure jet grouting reinforcement, powder jet reinforcement, concrete spraying reinforcement or infiltration grouting reinforcement.
The reinforcement comprises reinforcement of an additional steel bar, reinforcement of an additional geotechnical material bundle or reinforcement of an additional glass fiber yarn.
Wherein the grouting reinforcement is horizontal grouting reinforcement or vertical grouting reinforcement.
Wherein the step 7 comprises:
tensioning the road by adopting a steel wire bundle, a steel bar bundle or a steel strand to manufacture a reaction wall for curing;
and carrying out secondary grouting reinforcement on the road.
And the grouting reinforcement or the secondary grouting comprises grouting by adopting early strength cement paste, finished grouting material, water glass and an additive.
And 4, reinforcing the soft foundation section, the retaining wall section needing to be reinforced, the turning section, the bridge head section for jumping or the void section of the road by grouting, or reinforcing by grouting and reinforcing with prestress assistance.
Compared with the prior art, the road horizontal reinforcement reverse construction method provided by the embodiment of the invention has the following beneficial effects:
according to the road horizontal reinforcement reverse construction method, the bearing capacity and stability of a road are improved by adopting single-side or double-side horizontal reinforcement on the outer side of the road by adopting a road reverse construction method, the constraint of constructing a road structure layer from bottom to top is avoided, the processing method that the necessity of processing a road foundation by an original road structure is broken and different road conditions are increased when the road is reconstructed can be effectively avoided, so that the construction time and the cost are saved, the foundation of the newly constructed road is constructed by adopting a reverse construction method for constructing a rigid pavement under the condition of reducing the influence on the existing traffic, and the damage to the original road structure and the influence on the existing traffic are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart illustrating steps of an embodiment of a method for horizontally reinforcing a road according to the present invention;
fig. 2 is a schematic step flow diagram of another specific implementation of a road horizontal reinforcement reverse construction method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic flowchart illustrating steps of a specific implementation of a reverse method for reinforcing a road horizontally according to an embodiment of the present invention; fig. 2 is a schematic step flow diagram of another specific implementation of a road horizontal reinforcement reverse construction method according to an embodiment of the present invention.
In a specific embodiment, the invention provides a road horizontal reinforcement reverse construction method, which comprises the following steps:
step 1, performing geological exploration on a pre-reinforced road to obtain a geological exploration report of the road; the geological exploration is carried out to obtain geological information of the position of the road, if the geology around the road to be reinforced is sandy geology and soil geology, the moisture content of the air around the road and the like can influence the corresponding construction process, and the reinforcing effect and the reinforcing efficiency are greatly influenced.
Step 2, performing deflection detection on the outer side of the road to obtain the structure of the road; through deflection detection, obtain the structure of road, like this in follow-up work progress, can avoid appearing consolidating the district and combining the poor condition with original region for after-up construction, the reinforcing layer can not appear and original layer appear that the bonding force is poor and influence the condition of bearing capacity and life, makes the structure before and after consolidating be a body structure.
Step 3, determining a construction drawing and a construction scheme according to the geological exploration report of the road and the structure of the road; after a geological exploration report and a basic structure of a road are obtained, a construction drawing and a construction scheme need to be determined according to a reverse construction method, a construction process flow after planning is performed, construction is performed according to the drawing and the construction scheme strictly according to construction, construction efficiency is improved, and construction errors are reduced.
Step 4, carrying out horizontal drilling construction on the road, and horizontally reinforcing one side or two sides of the road; through horizontal drilling construction, realize the reinforcement to the road, carry out the level and consolidate, and can not damage original road bed basically, improve the bearing capacity, at this in-process, if there is the condition of newly-built road, widen the condition of original road promptly, can be simultaneously with original old road simultaneous construction, also can be to realizing consolidating to original road construction, shorten the time limit for a project, be under construction to new road again, the influence to road traffic is reduced as far as possible.
Step 5, performing secondary exploration on the reinforced road and obtaining a secondary exploration report; through the secondary exploration, whether effective in order to judge reinforcement, whether the deviation appears, whether accord with the expectation, reduce or avoid appearing the problem after final complete completion.
Step 6, grouting reinforcement is carried out on the road according to the secondary exploration report; through the slip casting reinforcement, on the one hand further improve the bearing capacity of road after the reinforcement, on the other hand is also to the reinforcement of reinforced structure.
Step 7, curing the road after grouting reinforcement; some of the laid materials (such as cement) require time to set and set, and wait or maintain until the use standard is reached, which is called a curing stage.
And 8, performing deflection detection on the road after the maintenance, and checking and accepting the road. Self-checking and acceptance are carried out after the health preservation is finished, and the road can be put into use after no road problem exists, so that traffic accidents caused by the road problem which is not found in the direct use process can be avoided, and the use reliability of the road is improved.
The invention adopts an automatic geological radar vehicle and an automatic deflection measuring vehicle to carry out ground exploration and drilling on the adjacent edge of the road properly, and utilizes the original road as much as possible under the condition of more comprehensively knowing the structural state of the road. On the premise of not damaging the existing structural layer of the original road, the reverse construction method improves the bearing capacity and stability of the road by adopting a combination method of single-side or double-side horizontal grouting reinforcement, reinforcement grouting reinforcement, internal extrusion, prestress reinforcement and the like on the outer side of the road. The road reverse construction method reduces the restriction of building a road structure layer from bottom to top when a road is newly built or modified by the traditional method, can also effectively avoid the problem that a treatment method of different road conditions is added when the necessity of treating a road foundation by an original road structure is broken when the road is modified, and saves the construction time and the cost. For the road traffic needing to be recovered quickly, the foundation of constructing a new road by firstly constructing a rigid pavement and then constructing a reverse method under the condition of reducing the influence on the existing traffic can be adopted.
The method has the advantages that the road reverse construction method is adopted, the bearing capacity and the stability of the road are improved by adopting single-side or double-side horizontal reinforcement outside the road, the constraint of constructing the road structure layer from bottom to top can be effectively avoided, the processing method that the necessity of processing the road foundation by the original road structure is broken and different road conditions are increased when the road is reconstructed can be effectively avoided, the construction time and the cost are saved, the method for quickly recovering the road traffic can be adopted, the rigid road surface is firstly constructed under the condition of reducing the influence on the existing traffic to construct the foundation of the newly constructed road in the reverse construction method, the damage to the original road structure is reduced, and the influence on the existing traffic is.
In the present invention, the process of horizontal drilling construction of a road is not limited, and a proper construction method may be selected according to different road structures, or different construction processes may be selected according to construction time, construction cost, proficiency of construction teams on different construction processes, and the like, and generally, the step 4 includes:
and carrying out excavation drilling construction on the outer side of the road or carrying out non-excavation drilling construction on the outer side of the road, wherein the non-excavation drilling construction on the outer side of the road comprises the steps of adopting surface horizontal directional drilling or adopting a pipe ramming method to carry out non-excavation drilling construction on the outer side of the road.
The present invention includes, but is not limited to, the above-described excavation drilling construction or trenchless drilling construction of the outer side of the road as horizontal drilling construction.
In the present invention, the construction method for reinforcing a road is not limited, and generally, reinforcing one side or both sides of the road includes:
and carrying out internal extrusion reinforcement, horizontal grouting reinforcement or reinforcement on one side or two sides of the road.
The flexible base layer is obtained through grouting reinforcement by different reinforcement methods, the rigid-flexible combined base layer is obtained through reinforcement and grouting reinforcement, and the rigid base layer is obtained through internal extrusion and prestress reinforcement.
Wherein, the internal extrusion reinforcement comprises water swelling reinforcement, horizontal rammed sand reinforcement and quicklime powder stirring soil reinforcement.
The horizontal grouting reinforcement comprises biological enzyme grouting reinforcement, high-pressure grouting reinforcement, stirring grouting reinforcement, splitting grouting reinforcement, high-pressure jet grouting reinforcement, powder jet reinforcement, concrete spraying reinforcement or infiltration grouting reinforcement.
The reinforcement comprises reinforcement of an additional steel bar, reinforcement of an additional geotechnical material bundle or reinforcement of an additional glass fiber yarn.
The road horizontal reinforcement reverse construction method can adopt a reverse construction method to construct a structural layer when a road is reformed or newly built, simultaneously fully utilizes the dead weight constraint of the existing road structure which is one of the advantages of horizontal reinforcement, utilizes the controllable volume expansion of the reinforcement body to form internal extrusion to extrude the soil around the reinforcement body so as to improve the rigidity and compactness of a bearing layer at the lower part of the road, and can also form a rigid-flexible combined structural layer with a prestressed concrete member so as to improve the bearing capacity and stability of the road. Meanwhile, the gravity of the structural layer constructed by the reverse construction method can be used for restraining the positive circulation of the soil extrusion effect of lower-layer construction, and the effect that the internal extrusion tends to be stable and balanced can be accelerated by preloading on a road section with a demand.
In order to further improve the bearing capacity of the road, grouting reinforcement is needed, the grouting reinforcement process is not limited, and the grouting reinforcement can be horizontal grouting reinforcement or vertical grouting reinforcement.
In order to guarantee and improve the reinforcement effect during curing, step 7 generally comprises:
tensioning the road by adopting a steel wire bundle, a steel bar bundle or a steel strand to manufacture a reaction wall for curing;
and carrying out secondary grouting reinforcement on the road.
And the positions which cannot be subjected to local horizontal reinforcement treatment can be reinforced by small-angle adjustment or by vertically drilling holes to the defect positions in a traditional mode and grouting.
The retaining wall which needs prestress tension to increase stability can be reinforced by applying prestress through anchor rods or steel strands for counter-tension or diagonal tension. The method can adopt prestress on the road retaining wall and the road base, fully utilizes the material performance of high compressive strength of concrete and high tensile strength of steel, and utilizes the reaction wall to provide a part of pre-applied bearing force to stabilize the retaining wall and the roadbed.
In the construction process, some projects may need to improve the bearing capacity more quickly, the construction period is shortened, and certain process improvement can be performed in the grouting process, so that the grouting reinforcement or the secondary grouting generally comprises grouting by adopting early strength cement grout, finished grouting material, water glass and an additive. Namely, the early strength cement paste, the finished grouting material, the water glass and a proper additive can be adopted during grouting for forming road bearing capacity by fast curing.
In the construction process, special road sections such as a soft foundation section, a retaining wall reinforcing section, a turning section, a bridge head jumping section, a void section and the like can be met, grouting reinforcement can be adopted, and internal extrusion or prestress auxiliary reinforcement can be introduced. The internal extrusion is a method for extruding soil around a reinforcing body to be stable along with the compaction of the surrounding soil by utilizing the self-weight constraint of the existing road structure and adopting the controllable volume expansion of the reinforcing body such as physical compaction, chemical reaction, biological reaction and the like. And the positions which cannot be subjected to local horizontal reinforcement treatment can be reinforced by small-angle adjustment or by vertically drilling holes to the defect positions in a traditional mode and grouting.
Therefore, the step 4 further comprises the step of reinforcing the soft foundation section, the section of the retaining wall needing to be reinforced, the turning section, the section of the bridge head jumping or the section of the gap of the road by combining grouting reinforcement and internal extrusion reinforcement or combining grouting reinforcement and prestress auxiliary reinforcement.
By the road horizontal reinforcement reverse construction method, the bearing capacity and the stability of the road after modification and upgrading are greatly improved, the detection is finished to meet the design and standard requirements, the operation efficiency is improved by using the method, and better economic benefit is obtained simultaneously
In summary, according to the road horizontal reinforcement reverse construction method provided by the embodiment of the invention, the bearing capacity and stability of a road are improved by adopting single-side or double-side horizontal reinforcement at the outer side of the road by adopting a road reverse construction method, and the constraint of building a road structure layer from bottom to top is built, so that a processing method of breaking the necessity of an original road structure in processing a road foundation and increasing different road conditions can be effectively avoided when the road is reconstructed, thereby saving the construction time and cost, and for the situation that the road traffic needs to be quickly recovered, the foundation of a newly-built road is constructed by adopting a reverse construction method in which a rigid road surface is firstly constructed under the condition of reducing the influence on the existing traffic, and the damage to the original road structure and the influence on the existing traffic.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A road horizontal reinforcement reverse construction method is characterized by comprising the following steps:
step 1, performing geological exploration on a pre-reinforced road to obtain a geological exploration report of the road;
step 2, performing deflection detection on the outer side of the road to obtain the structure of the road;
step 3, determining a construction drawing and a construction scheme according to the geological exploration report of the road and the structure of the road;
step 4, carrying out horizontal drilling construction on the road, and horizontally reinforcing one side or two sides of the road;
step 5, performing secondary exploration on the reinforced road and obtaining a secondary exploration report;
step 6, grouting reinforcement is carried out on the road according to the secondary exploration report;
step 7, curing the road after grouting reinforcement;
and 8, performing deflection detection on the road after the maintenance, and checking and accepting the road.
2. The road horizontal reinforcement reverse construction method according to claim 1, wherein the step 4 comprises:
and carrying out excavation drilling construction on the outer side of the road or carrying out non-excavation drilling construction on the outer side of the road, wherein the non-excavation drilling construction on the outer side of the road comprises the steps of adopting surface horizontal directional drilling or adopting a pipe ramming method to carry out non-excavation drilling construction on the outer side of the road.
3. The method of claim 2, wherein the reinforcing one or both sides of the road comprises:
and carrying out internal extrusion reinforcement, horizontal grouting reinforcement or reinforcement on one side or two sides of the road.
4. The method of claim 3, wherein the internal extrusion reinforcement comprises water swelling reinforcement, horizontal rammed sand reinforcement, and quicklime powder-mixed soil reinforcement.
5. The reverse construction method for the horizontal reinforcement of the road according to claim 4, wherein the horizontal grouting reinforcement comprises bio-enzyme grouting reinforcement, high-pressure grouting reinforcement, stirring grouting reinforcement, splitting grouting reinforcement, high-pressure jet grouting reinforcement, powder jetting reinforcement, concrete jetting reinforcement or infiltration grouting reinforcement.
6. The road horizontal reinforcement reverse construction method according to claim 3, wherein the reinforcement comprises reinforcement with steel bars, reinforcement with geotechnical material bundles or reinforcement with glass fiber yarns.
7. The method for reinforcing the horizontal surface of the road according to claim 6, wherein the grouting reinforcement is horizontal grouting reinforcement or vertical grouting reinforcement.
8. The method for horizontally reinforcing the road according to claim 7, wherein the step 7 comprises:
tensioning the road by adopting a steel wire bundle, a steel bar bundle or a steel strand to manufacture a reaction wall for curing;
and carrying out secondary grouting reinforcement on the road.
9. The method of claim 8, wherein the grouting reinforcement or the secondary grouting comprises grouting with an early strength cement grout, a finished grouting material, water glass and an additive.
10. The horizontal road reinforcement reverse construction method according to claim 9, wherein the step 4 further comprises the step of reinforcing the soft foundation section, the section of the retaining wall needing reinforcement, the turning section, the bridge head jumping section or the void section of the road by combining grouting reinforcement and internal extrusion reinforcement, or combining grouting reinforcement and prestress auxiliary reinforcement.
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| CN201911121589.XA CN110820450A (en) | 2019-11-15 | 2019-11-15 | Horizontal reinforcing and reverse construction method for road |
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| CN201911121589.XA CN110820450A (en) | 2019-11-15 | 2019-11-15 | Horizontal reinforcing and reverse construction method for road |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130913A (en) * | 1983-01-13 | 1984-07-27 | Mitsubishi Heavy Ind Ltd | Soft ground improvement work |
| CN101261264A (en) * | 2007-03-09 | 2008-09-10 | 郑州大学 | Semi-rigid base layer disease detection and high polymer grouting rapid servicing technology |
| CN103981782A (en) * | 2014-05-30 | 2014-08-13 | 中交第二公路勘察设计研究院有限公司 | Method and structure for reinforcing flat hole grouting roadbed without damaging road surface |
| CN105908697A (en) * | 2016-05-16 | 2016-08-31 | 中科院广州化灌工程有限公司 | Method for strengthening foundation through horizontal grouting holes |
-
2019
- 2019-11-15 CN CN201911121589.XA patent/CN110820450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130913A (en) * | 1983-01-13 | 1984-07-27 | Mitsubishi Heavy Ind Ltd | Soft ground improvement work |
| CN101261264A (en) * | 2007-03-09 | 2008-09-10 | 郑州大学 | Semi-rigid base layer disease detection and high polymer grouting rapid servicing technology |
| CN103981782A (en) * | 2014-05-30 | 2014-08-13 | 中交第二公路勘察设计研究院有限公司 | Method and structure for reinforcing flat hole grouting roadbed without damaging road surface |
| CN105908697A (en) * | 2016-05-16 | 2016-08-31 | 中科院广州化灌工程有限公司 | Method for strengthening foundation through horizontal grouting holes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
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Application publication date: 20200221 |