CN110805467A - Non-filling type large karst cave and gob precise processing method and system - Google Patents
Non-filling type large karst cave and gob precise processing method and system Download PDFInfo
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- CN110805467A CN110805467A CN201910919354.9A CN201910919354A CN110805467A CN 110805467 A CN110805467 A CN 110805467A CN 201910919354 A CN201910919354 A CN 201910919354A CN 110805467 A CN110805467 A CN 110805467A
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- filling
- dry powder
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a non-filling type large-scale karst cave and goaf precise processing method and a system, comprising the following steps: arranging holes, wherein the number and the positions of the grouting holes are distributed along the periphery of the piles around the single-pile foundation; drilling, namely drilling at least 2 drilling machines at the arrangement positions of adjacent grouting holes simultaneously, wherein the hole forming sequence does not exceed a set time interval; respectively installing a dry powder hydraulic filling pipe and a water spraying equipment pipe in the grouting hole; blowing and filling dry powder, spraying water to form concretions, and finishing filling the karst cave or the gob close to the single-pile foundation; and (4) pulling out the pipe and sealing the hole, removing the hydraulic filling pipe and the water spraying equipment pipe after hydraulic filling reaches the standard, and performing hydraulic filling construction treatment on the next drilling hole. The dry powder is blown and filled and simultaneously sprayed with water for solidification, the dry powder is blown and filled, the using amount of the dry powder can be controlled, the blowing and filling are carried out at effective positions, the number of blind grouting can be reduced, and the geological treatment can be accurately and quantitatively carried out.
Description
Technical Field
The invention relates to the technical field of civil engineering construction, in particular to a non-filling type large karst cave and goaf precise processing method and system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the civil engineering construction process, underground non-filled karst caves or goafs often exist in a field area, and the geological disaster sources have great threat to the safe use of related projects and need to be treated. The currently adopted modes are a pre-grouting method, concrete filling, clay filling and the like; most of the processing schemes have wide processing range, long processing period and high cost, and the quantitative processing of the geological disasters cannot be realized.
Disclosure of Invention
In order to solve the problems, the invention provides a non-filling type large-scale karst cave and goaf precise treatment method and system, which ensure that the underground karst cave or goaf is precisely treated within the engineering requirement range, are convenient and efficient to construct and effectively reduce the treatment cost.
In some embodiments, the following technical scheme is adopted:
a non-filling type large karst cave and goaf precise processing method comprises the following steps:
arranging holes, wherein the number and the positions of the grouting holes are distributed along the periphery of the piles around the single-pile foundation;
drilling, namely drilling at least 2 drilling machines at the arrangement positions of adjacent grouting holes simultaneously, wherein the hole forming sequence does not exceed a set time interval;
respectively installing a dry powder hydraulic filling pipe and a water spraying equipment pipe in the grouting hole;
blowing and filling dry powder, spraying water to form concretions, and finishing filling the karst cave or the gob close to the single-pile foundation;
and (4) pulling out the pipe and sealing the hole, removing the hydraulic filling pipe and the water spraying equipment pipe after hydraulic filling reaches the standard, and performing hydraulic filling construction treatment on the next drilling hole.
As a further improvement, the depth of the bottom of the grouting hole is at least as far as the bottom plate of the lowest karst cave or goaf.
As a further improvement, the sequential pore-forming sequence of adjacent grouting holes does not exceed 2 days.
As a further improvement, the dry powder blow-filling amount and the water spraying amount are controlled according to the size of the grouting hole.
In other embodiments, the following technical solutions are adopted:
the utility model provides a large-scale solution cavity of non-filling type, accurate processing system in collecting space area, includes:
means for arranging the number and location of the grout holes along the perimeter of the pile around the single pile foundation;
at least 2 drilling machines for drilling at adjacent grouting hole arrangement positions simultaneously; the order of the holes is not more than a set time interval;
the dry powder hydraulic filling pipe and the water spraying equipment pipe are respectively arranged in the grouting hole;
a device for controlling the amount of dry powder to be hydraulically filled according to the size of the grouting hole; means for controlling the amount of water sprayed;
a device for carrying out tube drawing and hole sealing.
Compared with the prior art, the invention has the beneficial effects that:
the dry powder is adopted for hydraulic filling and water spraying solidification, the dry powder consumption can be controlled by hydraulic filling the dry powder, hydraulic filling is carried out at an effective position, the number of blind grouting can be reduced, geological treatment can be carried out accurately and quantitatively, the fine treatment level of a geological disaster source is improved, the cost is saved, the construction period is shortened, and the treatment quality is improved.
Drawings
Fig. 1 is a schematic diagram of a non-filling type large-scale karst cave and gob precise processing method in the embodiment of the invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example one
In one or more embodiments, a non-filling type large karst cave and goaf precise processing method is disclosed, wherein the karst cave or the goaf is identified through early geophysical prospecting and drilling; referring to fig. 1, the method includes the following steps:
step 1: arranging holes, namely uniformly arranging grouting holes along the periphery of the pile according to expert opinions and by using past construction experience as reference, determining the depth of the hole bottom according to geological data, and driving the grouting holes to the bottom plate of the lowermost karst cave;
the pile foundation is a single pile foundation, and holes are distributed around the designed foundation pile for grouting around the pile.
Step 2: and (4) drilling holes by using a geological drilling machine, wherein the diameter of the formed holes is 108 mm. When drilling, 2 drilling machines are required to drill holes at 2 adjacent pile holes simultaneously, and the hole forming sequence does not exceed 2 days in sequence, so that the karst cave development trend and connectivity can be analyzed by observing the changes in the powder blowing and water spraying holes of the adjacent pile foundations;
and step 3: installing a dry powder hydraulic filling pipe and a water spraying equipment pipe, hydraulic filling dry powder, spraying water to form a consolidation, and filling the karst cave close to the pile foundation;
the dry powder hydraulic filling amount and the water spraying amount are controlled according to the size of the grouting hole, the dry powder using amount can be controlled, hydraulic filling is carried out at an effective position, the number of blind grouting can be reduced, and geological treatment can be carried out accurately and quantitatively.
And 4, step 4: and (4) pulling out the pipe and sealing the hole, and removing the hydraulic filling pipe and the water spraying equipment pipe after hydraulic filling reaches the standard, and performing hydraulic filling construction treatment on the next hole.
Example two
In one or more embodiments, disclosed is a non-filling type large-scale karst cave, gob precision treatment system, including:
means for arranging the number and location of the grout holes along the perimeter of the pile around the single pile foundation;
at least 2 drilling machines for drilling at adjacent grouting hole arrangement positions simultaneously; the order of the holes is not more than a set time interval;
the dry powder hydraulic filling pipe and the water spraying equipment pipe are respectively arranged in the grouting hole;
a device for controlling the amount of dry powder to be hydraulically filled according to the size of the grouting hole; means for controlling the amount of water sprayed;
a device for carrying out tube drawing and hole sealing.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (5)
1. A non-filling type large-scale karst cave and goaf precise processing method is characterized by comprising the following steps:
arranging holes, wherein the number and the positions of the grouting holes are distributed along the periphery of the piles around the single-pile foundation;
drilling, namely drilling at least 2 drilling machines at the arrangement positions of adjacent grouting holes simultaneously, wherein the hole forming sequence does not exceed a set time interval;
respectively installing a dry powder hydraulic filling pipe and a water spraying equipment pipe in the grouting hole;
blowing and filling dry powder, spraying water to form concretions, and finishing filling the karst cave or the gob close to the single-pile foundation;
and (4) pulling out the pipe and sealing the hole, removing the hydraulic filling pipe and the water spraying equipment pipe after hydraulic filling reaches the standard, and performing hydraulic filling construction treatment on the next drilling hole.
2. The method for accurately treating the non-filled large-scale karst cave and gob according to claim 1, wherein the bottom depth of the grouting hole is at least as great as the bottom plate of the lowest karst cave or gob.
3. The method for accurately treating the non-filled large-sized karst cave and gob according to claim 1, wherein the sequential pore-forming sequence of adjacent grouting holes does not exceed 2 days.
4. The method for accurately treating the non-filled large-sized karst cave and gob according to claim 1, wherein the dry powder blowing amount and the water spraying amount are controlled according to the size of the grouting holes.
5. The utility model provides a large-scale solution cavity of non-filling type, accurate processing system in collecting space area which characterized in that includes:
means for arranging the number and location of the grout holes along the perimeter of the pile around the single pile foundation;
at least 2 drilling machines for drilling at adjacent grouting hole arrangement positions simultaneously; the order of the holes is not more than a set time interval;
the dry powder hydraulic filling pipe and the water spraying equipment pipe are respectively arranged in the grouting hole;
a device for controlling the amount of dry powder to be hydraulically filled according to the size of the grouting hole; means for controlling the amount of water sprayed;
a device for carrying out tube drawing and hole sealing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919354.9A CN110805467B (en) | 2019-09-26 | 2019-09-26 | Non-filling type large karst cave and gob precise processing method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910919354.9A CN110805467B (en) | 2019-09-26 | 2019-09-26 | Non-filling type large karst cave and gob precise processing method and system |
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| CN110805467A true CN110805467A (en) | 2020-02-18 |
| CN110805467B CN110805467B (en) | 2021-06-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645565A1 (en) * | 1988-12-20 | 1991-04-30 | Калушский Филиал Всесоюзного Научно-Исследовательского И Проектного Института Галургии | Stowing composition |
| CN101514632A (en) * | 2009-03-27 | 2009-08-26 | 刘永 | Rotary air flow type concrete dry-conveying and wet-concreting machine |
| CN105715296A (en) * | 2016-01-25 | 2016-06-29 | 赵立财 | Blowing sand backfill and grouting construction method of tunnel crossing coal mine goaf |
| CN108585692A (en) * | 2018-06-20 | 2018-09-28 | 广州地铁设计研究院有限公司 | It is a kind of to fill molten, soil cave injecting paste material and grout filling construction method suitable for karst region |
-
2019
- 2019-09-26 CN CN201910919354.9A patent/CN110805467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1645565A1 (en) * | 1988-12-20 | 1991-04-30 | Калушский Филиал Всесоюзного Научно-Исследовательского И Проектного Института Галургии | Stowing composition |
| CN101514632A (en) * | 2009-03-27 | 2009-08-26 | 刘永 | Rotary air flow type concrete dry-conveying and wet-concreting machine |
| CN105715296A (en) * | 2016-01-25 | 2016-06-29 | 赵立财 | Blowing sand backfill and grouting construction method of tunnel crossing coal mine goaf |
| CN108585692A (en) * | 2018-06-20 | 2018-09-28 | 广州地铁设计研究院有限公司 | It is a kind of to fill molten, soil cave injecting paste material and grout filling construction method suitable for karst region |
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| CN110805467B (en) | 2021-06-18 |
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