CN112459744A - Hole sealing system and hole sealing method for geological prospecting drill hole - Google Patents
Hole sealing system and hole sealing method for geological prospecting drill hole Download PDFInfo
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- CN112459744A CN112459744A CN202011336532.4A CN202011336532A CN112459744A CN 112459744 A CN112459744 A CN 112459744A CN 202011336532 A CN202011336532 A CN 202011336532A CN 112459744 A CN112459744 A CN 112459744A
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- grouting
- pipe
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- hole
- pipes
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- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011440 grout Substances 0.000 claims abstract description 27
- 238000007569 slipcasting Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 9
- 239000011435 rock Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
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
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- 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 hole sealing system for geological prospecting drill holes, which comprises: a plurality of grouting pipes, grouting pumps and connecting pipes which are sequentially connected end to end; the connecting pipe is connected between the grouting pump and the tail root grouting pipe and used for conveying grout; the head the front end of slip casting pipe is the cone head, has out the thick liquid hole to at the head the anterior segment lateral wall of slip casting pipe is equipped with a plurality of injected holes. The invention aims to solve the problems that part of fan-shaped geological drill holes generated by underground geological exploration in the production process of a mine, namely the drill holes are difficult to seal in the geological drill holes in the rock with good rock compactness and no cracks, or the conventional sealing process cannot achieve the sealing purpose in sealing.
Description
The technical field is as follows:
the invention relates to a hole sealing system and a hole sealing method for geological prospecting drill holes, and belongs to the field of geological prospecting drill hole sealing.
Background art:
in the process of mine construction and production, in order to find out the shape, the output state, the mining technical conditions and the like of mine ore bodies in detail, a large amount of geological exploration work needs to be carried out, a large amount of geological drill holes are left after geological exploration, the purpose, the meaning and the requirement of a plurality of mines on geological drill hole sealing are not clear, and sufficient attention is not paid to the geological hole sealing work. Many facts prove that downhole water gushes are in direct connection with unsealed geological boreholes left by prior geological exploration. In the geological exploration in the mine production, the phenomenon of deviation in the drilling construction process is difficult to avoid, the broken stones in a stope are damaged by people due to the fact that holes are not sealed or the sealing performance is poor, the stope collapses due to the fact that water is leaked from the drill holes, and filling tailings enter an adjacent stope through the holes which are not sealed to increase dilution, so that the sealing effect of the geological drilling is needed to be improved.
The main hole sealing process at present is grouting hole sealing, and the grouting hole sealing has generally good effect of adopting a high-pressure grouting hole sealing process for geological drilling with crack development. However, most of geological exploration performed underground in mines is generally fan-shaped holes, one geological drilling hole can only be in one lithology, the compactness of the rock is better, and the hole sealing is performed by a high-pressure grouting method, so that gas in the geological drilling hole is not easy to discharge under the action of high pressure, the hole sealing efficiency is low, and the effect is poor; the effect cannot be achieved by depending on the self weight of the grout in the grouting process for the geological drilling holes with small angles.
The invention content is as follows:
in order to overcome the defects of the prior art, the invention aims to provide a hole sealing system and a hole sealing method for geological prospecting drill holes, which solve the problems that part of fan-shaped geological drill holes (geological drill holes in rocks with good rock compactness and no cracks) generated by underground geological exploration are difficult to seal in the production process of mines or the conventional hole sealing process cannot achieve the hole sealing purpose in hole sealing.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a system for sealing a geological prospecting borehole, comprising:
a plurality of grouting pipes, grouting pumps and connecting pipes which are sequentially connected end to end;
the connecting pipe is connected between the grouting pump and the tail root grouting pipe and used for conveying grout;
the head the front end of slip casting pipe is the cone head, has out the thick liquid hole to at the head the anterior segment lateral wall of slip casting pipe is equipped with a plurality of injected holes.
Preferably, the length of each grouting pipe is between 2.5m and 3.5m, and the grouting pipes are galvanized steel pipes.
A system for sealing a geological prospecting borehole, comprising:
a plurality of grouting pipes, grouting pumps and connecting pipes which are sequentially connected end to end;
the connecting pipe is connected between the grouting pump and the tail root grouting pipe and used for conveying grout;
still include a toper slip casting pipe, its front end has out the thick liquid hole, toper slip casting pipe can dismantle the intercommunication with end to end's first slip casting pipe to, the anterior segment lateral wall of first slip casting pipe is equipped with a plurality of injected holes.
Preferably, the length of the conical grouting pipes is 1m to 1.5m, the length of each grouting pipe is 2.5m to 3.5m, and all grouting pipes are galvanized steel pipes.
A hole sealing method for geological prospecting drilling by adopting the system comprises the following steps:
s1, calculating slurry to be prepared according to the volume of the geological borehole to be sealed, and preparing for later use;
s2, connecting a plurality of grouting pipes end to end, connecting a connecting pipe with a tail grouting pipe, and connecting the other end of the connecting pipe with a grouting pump;
s3, injecting grout into the geological drilling hole by using a grouting pump, enabling the grout to overflow from a grouting hole of the conical pipe or the first grouting pipe, enabling the overflow height of the grout injected for the first time to be 3-6 m higher than that of the first grouting pipe, lifting the whole grouting pipe to perform grouting for the second time, enabling the conical head to be higher than the grout surface in the geological drilling hole at the last time to be 3-5 m higher than that of the grouting pipe, then grouting again, and repeating the operation to achieve the purpose of fully sealing the hole of the geological drilling hole.
Compared with the prior art, the invention has the beneficial effects that:
according to the hole sealing system, the conical pipe is adopted at the front end of the grouting pipe, and the conical head is used for enabling the conical head to pass through the obstacle when the grouting pipe is lowered into a geological borehole; the side wall of the front section of the first grouting pipe is provided with a plurality of grouting holes, so that the problem that slurry cannot flow out of the conical head when the slurry is blocked is solved, the slurry can smoothly flow out of the side wall of the first grouting pipe, and the slurry can be used for filling drilled holes; the slurry is injected from the bottom of the hole to the hole opening in sequence, so that the phenomenon of poor hole sealing effect caused by the fact that air in the hole is not easy to remove in the conventional slurry injection drilling process is eliminated.
Description of the drawings:
FIG. 1 is an overall schematic of the system of the present invention; FIGS. 2A and 2B are front and cross-sectional views of a cone head;
FIGS. 3A and 3B are front and cross-sectional views of the first slip casting pipe;
fig. 4 is a schematic view of the connection of the conical pipe and the first grouting pipe (or both are an integral galvanized pipe).
Reference numbers in the figures: 1 grouting pipe, 101 grouting holes, 2 grouting pumps, 3 connecting pipes, 4 conical grouting pipes, 5 grouting liquids, 6 drilling holes.
The present invention will be further described with reference to the following detailed description and accompanying drawings.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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.
Referring to the drawings, the sealing system of the geological prospecting borehole of the embodiment comprises:
a plurality of grouting pipes 1, grouting pumps 2 and connecting pipes 3 which are sequentially connected end to end;
the connecting pipe 3 is connected between the grouting pump 2 and the tail root grouting pipe and is used for conveying grout 5;
wherein, the front end of first slip casting pipe 1 is the cone head, has out the thick liquid hole to be equipped with a plurality of injected holes 101 at the anterior segment lateral wall of first slip casting pipe 1. Specifically, the length of each grouting pipe is between 2.5m and 3.5m, and the grouting pipes are galvanized steel pipes.
Or, the first slip casting pipe and the conical head are of a split structure, as shown in fig. 3A and 3B, the conical slip casting pipe 4 is detachably connected with the first slip casting pipe 1, for example, the two are in threaded connection, the inner cavities of the two are communicated, and similarly, the front section side wall of the first slip casting pipe 1 is provided with a plurality of slip casting holes 101. The length of the conical grouting pipe 4 is 1m to 1.5m, or the length thereof is set as the case may be.
The hole sealing method for geological prospecting drill holes by adopting the system comprises the following steps:
and S1, calculating the grout to be prepared according to the volume of the geological borehole 6 to be sealed, and preparing for later use, wherein the grout is concrete grout.
S2, connecting a plurality of grouting pipes end to end, connecting a connecting pipe with a tail grouting pipe, and connecting the other end of the connecting pipe with a grouting pump;
s3, injecting grout into the geological borehole by using a grouting pump, enabling the grout to overflow from a grouting hole of the conical pipe or the first grouting pipe, wherein the overflow height of the grout injected for the first time is preferably 3-6 m higher than that of the first grouting pipe (the grout overflows the first galvanized pipe to be smaller in height and vice versa according to the thickening degree of the grout), then lifting the whole grouting pipe to perform grouting for the second time, the lifted height of the grouting pipe is preferably 3-5 m higher than that of the grout surface in the geological borehole at the last time by using the conical head (the grout surface is too high and flows automatically into the geological borehole by the self weight of the grout, gaps are often left in the borehole due to the coagulability of the grout), then grouting again, and repeating the operation to achieve the purpose of fully sealing the geological borehole.
The invention aims to solve the problems that part of fan-shaped geological drill holes (the geological drill holes of the drill holes in rock with good rock compactness and no crack) generated by underground geological exploration are difficult to seal in the production process of a mine, or the conventional sealing process cannot achieve the sealing purpose in sealing, and the like.
It should be noted that the detailed description of the invention is not included in the prior art, or can be directly obtained from the market, and the detailed connection mode can be widely applied in the field or daily life without creative efforts, and the detailed description is not repeated here.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. A hole sealing system of geological prospecting borehole, its characterized in that includes:
a plurality of grouting pipes (1), grouting pumps (2) and connecting pipes (3) which are sequentially connected end to end;
the connecting pipe (3) is connected between the grouting pump (2) and the tail root grouting pipe and used for conveying grout;
the first front end of slip casting pipe (1) is the cone head, has out the thick liquid hole to first the anterior segment lateral wall of slip casting pipe (1) is equipped with a plurality of injected holes (101).
2. A system for sealing a geological prospecting borehole according to claim 1, characterized in that:
the length of each grouting pipe is between 2.5 and 3.5m, and the grouting pipes are galvanized steel pipes.
3. A hole sealing system of geological prospecting borehole, its characterized in that includes:
a plurality of grouting pipes (1), grouting pumps (2) and connecting pipes (3) which are sequentially connected end to end;
the connecting pipe (3) is connected between the grouting pump (2) and the tail root grouting pipe and used for conveying grout;
still include a toper slip casting pipe (4), its front end has out the thick liquid hole, toper slip casting pipe (4) can dismantle the intercommunication with end to end's first slip casting pipe (1) to, the anterior segment lateral wall of first slip casting pipe (1) is equipped with a plurality of injected holes (101).
4. A system for sealing a geological prospecting borehole according to claim 3, characterized in that:
the length of the conical grouting pipes (4) is 1 m-1.5 m, the length of each grouting pipe is 2.5m-3.5m, and all grouting pipes are galvanized steel pipes.
5. A method of sealing a geological exploration borehole using a system according to any of claims 1 to 4, characterized by the steps of:
s1, calculating slurry to be prepared according to the volume of the geological borehole to be sealed, and preparing for later use;
s2, connecting a plurality of grouting pipes end to end, connecting a connecting pipe with a tail grouting pipe, and connecting the other end of the connecting pipe with a grouting pump;
s3, injecting grout into the geological drilling hole by using a grouting pump, enabling the grout to overflow from a grouting hole of the conical pipe or the first grouting pipe, enabling the overflow height of the grout injected for the first time to be 3-6 m higher than that of the first grouting pipe, lifting the whole grouting pipe to perform grouting for the second time, enabling the conical head to be higher than the grout surface in the geological drilling hole at the last time to be 3-5 m higher than that of the grouting pipe, then grouting again, and repeating the operation to achieve the purpose of fully sealing the hole of the geological drilling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336532.4A CN112459744A (en) | 2020-11-25 | 2020-11-25 | Hole sealing system and hole sealing method for geological prospecting drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336532.4A CN112459744A (en) | 2020-11-25 | 2020-11-25 | Hole sealing system and hole sealing method for geological prospecting drill hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112459744A true CN112459744A (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011336532.4A Pending CN112459744A (en) | 2020-11-25 | 2020-11-25 | Hole sealing system and hole sealing method for geological prospecting drill hole |
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| Country | Link |
|---|---|
| CN (1) | CN112459744A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203961899U (en) * | 2014-06-23 | 2014-11-26 | 平顶山天安煤业股份有限公司 | Upwards extend the hole sealing device of boring |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN108979590A (en) * | 2018-09-01 | 2018-12-11 | 安徽理工大学 | A kind of surface drilling to coal seam breaking roof grouting and reinforcing method and grouting device |
| CN110005367A (en) * | 2019-03-26 | 2019-07-12 | 无锡市政设计研究院有限公司 | A kind of device of drilling and sealing |
| CN110080194A (en) * | 2019-04-30 | 2019-08-02 | 长江岩土工程总公司（武汉） | Explore pressure injection instrument and its application |
| CN211773678U (en) * | 2020-01-08 | 2020-10-27 | 山西机械化建设集团有限公司 | Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering |
-
2020
- 2020-11-25 CN CN202011336532.4A patent/CN112459744A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203961899U (en) * | 2014-06-23 | 2014-11-26 | 平顶山天安煤业股份有限公司 | Upwards extend the hole sealing device of boring |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN108979590A (en) * | 2018-09-01 | 2018-12-11 | 安徽理工大学 | A kind of surface drilling to coal seam breaking roof grouting and reinforcing method and grouting device |
| CN110005367A (en) * | 2019-03-26 | 2019-07-12 | 无锡市政设计研究院有限公司 | A kind of device of drilling and sealing |
| CN110080194A (en) * | 2019-04-30 | 2019-08-02 | 长江岩土工程总公司（武汉） | Explore pressure injection instrument and its application |
| CN211773678U (en) * | 2020-01-08 | 2020-10-27 | 山西机械化建设集团有限公司 | Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering |
Non-Patent Citations (3)
| Title |
|---|
| 地质矿产部等: "《水文地质钻探 工艺部分》", 31 March 1983, 北京：地质出版社 * |
| 王雨利等: "《破碎围岩注浆加固技术及其工程应用》", 31 March 2017, 中国矿业大学出版社 * |
| 路耀华等: "《中国煤矿建井技术》", 31 December 1995, 中国矿业大学出版社 * |
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Application publication date: 20210309 |