CN114837607B - Grouting reinforcement construction process - Google Patents
Grouting reinforcement construction process Download PDFInfo
- Publication number
- CN114837607B CN114837607B CN202210459453.5A CN202210459453A CN114837607B CN 114837607 B CN114837607 B CN 114837607B CN 202210459453 A CN202210459453 A CN 202210459453A CN 114837607 B CN114837607 B CN 114837607B
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- Prior art keywords
- grouting
- hole sealing
- drill
- sealing agent
- hole
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 230000002787 reinforcement Effects 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 113
- 238000005553 drilling Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000004080 punching Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 230000002596 correlated effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003795 chemical substances by application Substances 0.000 description 56
- 239000011435 rock Substances 0.000 description 8
- 239000000565 sealant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a grouting reinforcement construction process which comprises the following steps of punching, pushing a hollow drill rod to punch to form a drilling hole with a preset depth by a drilling machine, injecting a hole sealing agent, injecting the hole sealing agent into the drilling hole through a middle hole of the drill rod, filling a gap between the drilling hole and the drill rod by the hole sealing agent to form a hole sealing section, adjusting the position of the hole sealing agent, injecting high-pressure liquid into the drilling hole by the drill rod, pushing the hole sealing agent to the preset hole sealing position by the high-pressure liquid, and grouting the hole sealing agent to the preset grouting pressure after hardening. The grouting reinforcement construction process provided by the invention has the advantages of simple process steps, capability of avoiding repeated disassembly and assembly switching of construction equipment, good hole sealing effect and convenience in automatic construction.
Description
Technical Field
The invention relates to the technical field of surrounding rock reinforcement, in particular to a grouting reinforcement construction process.
Background
Grouting reinforcement is widely used in geotechnical engineering as a main surrounding rock reinforcement means. The grouting process comprises the steps of punching, disassembling a drill rod, installing a grouting pipe, sealing holes, connecting grouting pipelines, grouting and the like. The construction process of the related art mainly has the following problems: the construction flow is complex, automation is difficult to realize, and the whole flow is realized manually; surrounding rock to be grouting reinforced is generally broken and weak, and holes collapse easily in the processes of punching and disassembling a drill rod and installing a grouting pipeline, so that the grouting pipeline is failed to install; the hole sealing is generally realized by winding cotton yarn on an expansion hole packer or a grouting pipe to be stained with cement water glass and other adhesive substances, so that the adaptability of the hole sealing process is limited, if surrounding rock is broken, the wall of a grouting hole is uneven, the hole sealing means is difficult to realize tight fitting on the wall of the drilling hole, the hole sealing effect is poor, and high grouting pressure is difficult to realize.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the invention provides a grouting reinforcement construction process, which has the advantages of simple process steps, avoidance of repeated disassembly and assembly switching of construction equipment, good hole sealing effect and convenience for automatic construction.
According to the grouting reinforcement construction process provided by the embodiment of the invention, the grouting reinforcement construction process comprises the following steps of:
punching, wherein the drilling machine pushes the hollow drill rod to punch holes to form holes with preset depth;
injecting a hole sealing agent into the drill hole through a middle hole of the drill rod, wherein the hole sealing agent fills a gap between the drill hole and the drill rod to form a hole sealing section;
the position of the hole sealing agent is regulated, the drill rod injects high-pressure liquid into the drill hole, and the high-pressure liquid pushes the hole sealing agent to a preset hole sealing position;
grouting, namely grouting the drilled holes to a preset grouting pressure after the agent is hardened.
The grouting reinforcement construction process provided by the embodiment of the invention has the advantages of simple process steps, capability of avoiding repeated disassembly and assembly switching of construction equipment, good hole sealing effect and convenience in automatic construction.
In some embodiments, the drill rod comprises a drill bit, a middle holder and a drill rod body, wherein the drill bit is communicated with the drill rod body, the middle holder is arranged in the middle of the drill rod body, a grouting channel is arranged in the drill rod body, and the grouting channel is communicated with a drill box of the drilling machine.
In some embodiments, the holder is a helical structure having an outer diameter that conforms to an outer diameter of the drill bit.
In some embodiments, the grouting channel is provided with a flow mixer at an end far away from the drill bit.
In some embodiments, the drill box is a three-channel drill box, the first and second channels of the three-channel drill box are used for injecting the hole sealing agent, the third channel of the three-channel drill box is used for injecting the high-pressure liquid and grouting, and the three-channel drill box is communicated with a grouting pump.
In some embodiments, the sealant is a two-component sealant that is mixed by the mixer to form a non-newtonian fluid.
In some embodiments, the grouting channel is provided with an opening at an end of the drill rod body adjacent the drill bit, from which opening the sealer returns to fill the annular void between the borehole and the drill rod.
In some embodiments, the length of the hole sealing section is positively correlated with the preset grouting pressure.
In some embodiments, before the hole sealing agent is cured, a grouting pump of the drilling machine is started, and after the grouting pump presses the high-pressure liquid into a drill rod through the drilling machine, the high-pressure liquid pushes the hole sealing agent outwards to a preset hole sealing position along the axial direction of the drill hole.
In some embodiments, the grouting pump is turned off after the hole sealing agent reaches a preset hole sealing position, and the grouting pump is turned on for grouting after the hole sealing agent is hardened.
In some embodiments, after the grouting reinforcement location is selected, the drilling rig automatically completes the steps of perforating, injecting the hole sealer, adjusting the hole sealer location, and grouting.
Drawings
Fig. 1 is a schematic structural view of a drill pipe according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a punching step of a grouting reinforcement construction process according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a step of injecting a hole sealing agent in a grouting reinforcement construction process according to an embodiment of the present invention.
Fig. 4 is a schematic diagram showing a step of adjusting the position of the hole sealing agent in the grouting reinforcement construction process according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of a grouting step of a grouting reinforcement construction process according to an embodiment of the present invention.
Reference numerals: 1. a drill rod; 11. a drill bit; 12. a middle holder; 13. grouting channels; 2. drilling a box; 3. and (3) a hole sealing agent.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. 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.
According to the grouting reinforcement construction process provided by the embodiment of the invention, as shown in fig. 1-5, the grouting reinforcement construction process comprises the following steps:
punching, wherein the drilling machine pushes the hollow drill rod 1 to punch to form a drill hole with preset depth;
injecting a hole sealing agent 3, injecting the hole sealing agent 3 into a drill hole through the hollow of the drill rod 1, and filling a gap between the drill hole and the drill rod 1 with the hole sealing agent 3 to form a hole sealing section; the hollow drill rod 1 can be used as a grouting pipe to avoid the phenomenon of hole collapse which is easy to occur in the process of disassembling the drill rod 1 and installing a grouting pipeline. The middle hole is the hollow of the drill rod, namely the hole extending along the central axis of the drill rod 1, the hole sealing agent 3 is injected into the drill hole through the middle hole of the drill rod 1, the hole sealing agent 3 flows out of the drill rod 1 and enters the hole sealing section formed by the gap between the drill hole and the drill rod 1, the hole sealing effect is good for tightly attaching the hole wall of the drill hole and the drill rod 1, and higher grouting pressure can be realized.
Adjusting the position of the hole sealing agent 3, injecting high-pressure liquid into a drill hole by the drill rod 1, and pushing the hole sealing agent 3 to a preset hole sealing position by the high-pressure liquid; the drill rod 1 injects high-pressure liquid into a drill hole, the high-pressure liquid clears the hole sealing agent 3 in the drill rod 1 and can push the hole sealing agent 3 to be tightly attached to the wall of the drill hole so as to adapt to the conditions of surrounding rock crushing and different concave-convex of the wall of a grouting hole, and a better hole sealing effect is achieved.
Grouting, namely grouting into a borehole to reach preset grouting pressure after hardening the hole sealing agent 3. The hole sealing agent 3 is injected into the drilled hole through the hollow drill rod 1 after hardening, the drill rod 1 is not required to be disassembled, the process flow of grouting is simplified, and the repeated disassembly and assembly construction equipment is avoided by the same hollow drill rod 1 in the process of punching, hole sealing and grouting, so that the automatic operation is facilitated. The controller can control the drill rod 1 and the drill box 2 in a centralized way to realize the automatic work of the drilling machine.
The grouting reinforcement construction process provided by the embodiment of the invention has the advantages of simple process steps, capability of avoiding repeated disassembly and assembly switching of construction equipment, good hole sealing effect and convenience in automatic construction.
In some embodiments, as shown in fig. 1, the drill rod 1 comprises a drill bit 11, a middle holder 12 and a drill rod 1 body, wherein the drill bit 11 is communicated with the drill rod 1 body, the middle holder 12 is arranged in the middle of the drill rod 1 body, a grouting channel 13 is arranged in the drill rod 1 body, and the grouting channel 13 is communicated with the drill box 2 of the drilling machine.
Specifically, the grouting channel 13 conveys materials in the drilling box 2 of the drilling machine to the drill bit 11 through the drill rod 1 body, and flows out into a drilled hole, after drilling of the drill rod 1 is completed, grouting can be performed through the drill rod 1 without disassembling the drill rod 1, the process is simplified, the efficiency is improved, and hole collapse caused by disassembling the drill rod 1 can be avoided. The holder 12 and the drill bit 11 cooperate to keep the axis of the drill rod 1 coincident with the axis of the borehole from decentering the drill rod 1. Bit 11 may be a disposable bit. The middle hole of the hollow drill rod 1 is the grouting channel 13.
In some embodiments, as shown in FIG. 1, the holder 12 is a helical structure having an outer diameter that corresponds to the outer diameter of the drill bit 11.
Specifically, the middle holder 12 is sleeved in the middle of the drill rod 1 body, the spiral structure is convenient for discharging the broken slag in the drilling process of the drill rod 1, the outer diameter of the spiral structure is the same as that of the drill bit 11, and the spiral structure plays a supporting role on the drill rod 1 to prevent the drill rod 1 from deviating from the axial direction of drilling and contacting with the wall of a drilling hole.
In some embodiments, grouting channel 13 is provided with a flow mixer at the end remote from drill bit 11.
Specifically, the mixer is used for fully mixing the hole sealing agent 3, and the mixer comprises a central shaft and spiral blades which are fixedly connected into a whole, wherein the central shaft is coaxial with the drill rod 1, and the spiral blades are arranged around the central shaft.
In some embodiments, the drill box 2 is a three-channel drill box 2, the first channel and the second channel of the three-channel drill box 2 are used for injecting the hole sealing agent 3, the third channel of the three-channel drill box 2 is used for injecting high-pressure liquid and grouting, and the three-channel drill box 2 is communicated with a grouting pump. The hole sealing agent components of the first channel and the second channel enter the drill rod and then are mixed by the mixer to enter the grouting channel of the drill rod, and the high-pressure liquid and grouting of the third channel enter the grouting channel of the drill rod.
From this, hole sealing agent gets into the drilling rod through first passageway and second passageway respectively and can avoid the component reaction hardening of hole sealing agent to block up the drill box in advance, and the third through be used for injecting high-pressure liquid and slip casting can avoid remaining hole sealing agent and high-pressure liquid and slip casting contact, guarantees slip casting pressure and slip casting effect.
In some embodiments, as shown in fig. 3, the sealant 3 is a two-component sealant 3, and the two-component sealant 3 is mixed by a mixer to form a non-newtonian fluid.
Specifically, the two-component hole sealing agent 3 comprises an A component and a B component, A, B in fig. 3 refers to the A component and the B component respectively, the A component comprises silicate aqueous solution, a curing agent and a catalyst, and the B component comprises polyisocyanate and a viscosity reducer. The component A and the component B are uniformly mixed and reacted through a mixer to form a non-Newtonian fluid, the hole sealing agent 3 flows into a gap between the drill hole and the drill rod 1 based on the flow characteristics of the hole sealing agent, even if the hole wall is uneven, the hole sealing agent 3 can be tightly attached to the hole wall, and the hole sealing agent 3 and surrounding rock have better adhesive property and can realize better hole sealing effect.
In some embodiments, the grouting channel 13 is provided with an opening at the end of the body of the drill rod 1 adjacent to the drill bit 11, from which the sealer 3 is returned to fill the annular space between the borehole and the drill rod 1.
Therefore, the hole sealing agent flows out of the grouting channel of the drill rod body, the hole sealing agent is blocked by surrounding rock at the drill bit to reversely flow into the annular gap between the drill hole and the drill rod, and the hole sealing agent moves along the annular gap towards the drill machine, so that the hole sealing effect is improved.
In some embodiments, the length of the pore sealing section is positively correlated with the preset grouting pressure.
Therefore, the length of the hole sealing section is designed according to the preset grouting pressure requirement, and the higher the preset grouting pressure is, the longer the length of the hole sealing section is so as to ensure the sealing effect of the hole sealing section on the drill rod and the drilled hole.
In some embodiments, the grouting pump of the drilling machine is started before the hole sealing agent 3 is cured, and after the grouting pump presses high-pressure liquid into the drill rod 1 through the drilling machine, the high-pressure liquid pushes the hole sealing agent 3 outwards to a preset hole sealing position along the axial direction of the drill hole.
Specifically, the high-pressure liquid is water or other fluid with good fluidity and no reaction with the hole sealing agent 3, the high-pressure water is injected into the drill rod 1 through the third channel of the drill box 2, the hole sealing agent 3 in the annular gap between the drill rod 1 and the drill hole moves along the axial direction of the drill rod 1 under the pushing of the high-pressure water, the hole sealing agent 3 moves outwards, namely in the direction of the drilling machine, and the high-pressure water can enable the hole sealing agent 3 to be combined with surrounding rocks more uniformly.
In some embodiments, the grouting pump is turned off after the hole sealing agent 3 reaches a preset hole sealing position, and the grouting pump is turned on for grouting after waiting for the hole sealing agent 3 to harden. The sealer 3 generally waits about 1 minute for hardening.
Therefore, the effect that the grouting pump applies pressure to the hole sealing agent in the drilled hole to solidify and harden the hole sealing agent can be avoided, and the grouting pump is started after the hole sealing agent hardens to smoothly perform grouting.
In some embodiments, after the grouting reinforcement location is selected, the drilling rig automatically completes the steps of perforating, injecting the hole sealer, adjusting the hole sealer location, and grouting.
Specifically, the controller collects data of a drilling machine, hole sealing agents and drilling holes, after grouting reinforcement positions are selected, the controller controls the starting of the drilling machine, the controller controls drilling according to preset drilling depth data, after detecting that drilling depth accords with the preset depth data, the controller controls the drilling box of the drilling machine to start a first channel and a second channel to inject the hole sealing agents into a drill rod and controls the mixer in the drill rod to start mixing the hole sealing agents, after hole sealing agent injection is completed, the controller controls the drilling box to start a third channel to inject high-pressure liquid into the drilling holes to adjust the position of the hole sealing agents, after detecting that the position of the hole sealing agents accords with the preset data, the controller controls the closing and the opening of a grouting pump, and the controller controls the drilling machine to perform grouting.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those skilled in the art without departing from the scope of the invention.
Claims (9)
1. The grouting reinforcement construction process is characterized by comprising the following steps of:
punching, wherein the drilling machine pushes the hollow drill rod to punch holes to form holes with preset depth;
injecting a hole sealing agent into the drill hole through a middle hole of the drill rod, wherein the hole sealing agent fills a gap between the drill hole and the drill rod to form a hole sealing section;
the position of the hole sealing agent is regulated, the drill rod injects high-pressure liquid into the drill hole, and the high-pressure liquid pushes the hole sealing agent to a preset hole sealing position;
grouting, namely grouting the drilling holes to a preset grouting pressure after hardening the hole sealing agent;
the high-pressure liquid is fluid which has good fluidity and is not reacted with the hole sealing agent;
the drill rod comprises a drill bit, a middle holding device and a drill rod body, wherein the drill bit is communicated with the drill rod body, the middle holding device is arranged in the middle of the drill rod body, a grouting channel is arranged in the drill rod body, and the grouting channel is communicated with a drill box of the drilling machine;
the grouting channel is provided with an opening at one end of the drill rod body adjacent to the drill bit, and the hole sealing agent returns out of the opening to fill an annular gap between the drill hole and the drill rod.
2. The grouting reinforcement construction process of claim 1, wherein the retainer is a helical structure, an outer diameter of the helical structure being consistent with an outer diameter of the drill bit.
3. The grouting reinforcement construction process according to claim 1, wherein a flow mixer is provided at an end of the grouting passage away from the drill bit.
4. The grouting reinforcement construction process according to claim 1, wherein the drill box is a three-channel drill box, a first channel and a second channel of the three-channel drill box are used for injecting the hole sealing agent, a third channel of the three-channel drill box is used for injecting the high-pressure liquid and grouting, and the three-channel drill box is communicated with a grouting pump.
5. The grouting reinforcement construction process according to claim 3, wherein the hole sealing agent is a two-component hole sealing agent, and the two-component hole sealing agent is mixed by the mixer to form a non-newtonian fluid.
6. The grouting reinforcement construction process according to claim 1, wherein the length of the hole sealing section is positively correlated with the preset grouting pressure.
7. The grouting reinforcement construction process according to claim 1, wherein a grouting pump of the drilling machine is started before the hole sealing agent is solidified, and the high-pressure liquid pushes the hole sealing agent outwards to a preset hole sealing position along the axial direction of the drill hole after the grouting pump presses the high-pressure liquid into a drill rod through the drilling machine.
8. The grouting reinforcement construction process according to claim 7, wherein the grouting pump is turned off after the hole sealing agent reaches a preset hole sealing position, and the grouting pump is turned on after the hole sealing agent is hardened.
9. The grouting reinforcement construction process according to claim 1, wherein the drilling machine automatically performs the steps of perforating, injecting a hole sealing agent, adjusting the position of the hole sealing agent and grouting after the grouting reinforcement position is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459453.5A CN114837607B (en) | 2022-04-27 | 2022-04-27 | Grouting reinforcement construction process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459453.5A CN114837607B (en) | 2022-04-27 | 2022-04-27 | Grouting reinforcement construction process |
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| CN114837607A CN114837607A (en) | 2022-08-02 |
| CN114837607B true CN114837607B (en) | 2024-04-05 |
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| Title |
|---|
| 煤层钻孔长距离压气带压注浆封孔技术研究;李义敬;杨磊;胡胜勇;周福宝;周二元;;中国煤炭(08);第105-108页 * |
| 瓦斯抽放钻孔封孔工艺改进;王超;李杰;姚显君;;煤炭技术(05);第234-235页 * |
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| CN114837607A (en) | 2022-08-02 |
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