CN109577987B - Construction method for penetrating freezing pipe of casing through inclined shaft wall - Google Patents
Construction method for penetrating freezing pipe of casing through inclined shaft wall Download PDFInfo
- Publication number
- CN109577987B CN109577987B CN201811455189.8A CN201811455189A CN109577987B CN 109577987 B CN109577987 B CN 109577987B CN 201811455189 A CN201811455189 A CN 201811455189A CN 109577987 B CN109577987 B CN 109577987B
- Authority
- CN
- China
- Prior art keywords
- wall
- sleeve
- well
- cement slurry
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000008014 freezing Effects 0.000 title claims abstract description 37
- 238000007710 freezing Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 27
- 230000005641 tunneling Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
- E21D1/14—Freezing apparatus
-
- 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
- Y02E10/10—Geothermal energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a construction method for a freezing pipe sleeved with a sleeve to penetrate through the wall of an inclined shaft, which comprises the following steps: tunneling downwards from the ground to the upper wall surface of the inclined shaft wall by using a drill bit sleeved with a sleeve, injecting cement slurry A into the contact position of the sleeve and the shaft wall through the sleeve, and fixing the sleeve and the upper surface of the shaft wall together when the cement slurry A is solidified; changing a drill bit, continuing tunneling, penetrating through the upper wall of a well wall, and injecting cement slurry B into a well shaft through a casing; continuing tunneling to the surface of the lower wall of the well wall, and fixing the sleeve to the bottom end of the lower wall of the well wall after penetrating the lower wall of the well; after the casing passes through the well wall, a freezing pipe is placed in the casing, and cement slurry C is injected between the casing and the freezing pipe. The invention adopts a more specialized and advanced freezing construction process to cast the freezing pipe of the jacket sleeve into the well wall of the mine, and has higher construction level and excellent effect.
Description
Technical Field
The invention belongs to a well wall construction method, and particularly relates to a freezing pipe penetrating inclined well wall construction method of a sleeved casing.
Background
When the freezing method is used for treatment, a freezing pipe is required to be drilled into the well wall, because the water content is more and the water content is more, when the freezing method is used for construction in the later period, the strength of frozen water into ice is smaller than that of frozen water and sand, and the frozen soil is formed after the frozen water and sand are frozen, so that the safety requirement of construction is not met, cement slurry is required to be injected into the well wall through a sleeve, the water content in the well wall is reduced, the requirement of the frozen strength is met, and the freezing repair is carried out by adopting the construction method that the freezing pipe sleeved with the sleeve penetrates through the well wall of the inclined well.
Disclosure of Invention
The invention aims to provide a construction method for a freezing pipe sleeved with a sleeve to penetrate through the wall of an inclined shaft, which can protect the freezing pipe by utilizing the sleeve and ensure normal and stable freezing work.
The technical scheme adopted by the invention is as follows:
A construction method for a freezing pipe sleeved with a sleeve to penetrate through the wall of an inclined shaft comprises the following steps:
(1) The drill bit sleeved with the casing is used for tunneling downwards from the ground to the upper wall surface of the inclined shaft wall, cement slurry A is injected into the contact position of the casing and the inclined shaft wall through the casing, and the casing and the upper surface of the inclined shaft wall are fixed together when the cement slurry A is solidified.
(2) The drill bit is replaced, tunneling is continued, the drill bit penetrates through the upper wall of the well wall, and slurry B is injected into the well shaft through the casing.
(3) And (5) tunneling is continued until the surface of the lower wall of the well wall, and after the lower wall of the well is penetrated, the sleeve is fixed to the bottom end of the lower wall of the well wall.
(4) After the casing passes through the well wall, a freezing pipe is placed in the casing, and cement slurry C is injected between the casing and the freezing pipe.
The present invention is also characterized in that,
The cement slurry liquid A in the step (1) adopts slurry with short setting time, high bonding strength, good waterproof performance and strong sealing performance.
The cement slurry B which does not change the freezing point and is combined with water to form a similar water-containing sand soil body is adopted in the step (2).
And (3) the diameter of the freezing pipe in the step (4) is smaller than the diameter of the sleeve.
An annular gap space is formed between the freezing pipe and the sleeve, and cement slurry C is injected into the annular gap space.
The cement slurry C has the characteristic of being incapable of insulating.
The beneficial effects of the invention are as follows:
The invention adopts a more specialized and advanced freezing construction process to cast the freezing pipe of the jacket sleeve into the well wall of the mine, and has higher construction level and excellent effect.
Drawings
FIG. 1 is a diagram of the connection of the casing of the present invention to the upper wellbore wall;
FIG. 2 is a schematic illustration of the grouting of the present invention into a wellbore through the upper wellbore wall of a casing;
FIG. 3 is a view of the wall of a well penetrated by a casing according to the present invention;
FIG. 4 is a graph of the diameter of a bushing versus a freeze tube according to the present invention.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings and detailed description.
The invention provides a construction method for a freezing pipe sleeved with a sleeve to penetrate through the wall of an inclined shaft, which comprises the following specific steps:
(1) The drill bit sleeved with the casing is used for tunneling downwards from the ground to the upper wall surface of the inclined shaft wall, cement slurry A is injected into the contact position of the casing and the inclined shaft wall through the casing, and the casing and the upper surface of the inclined shaft wall are fixed together when the cement slurry A is solidified (shown in the figure 1).
The cement slurry a needs to have the following characteristics: short coagulation time, high bonding strength, good waterproof performance and strong sealing performance.
(2) The drill bit is replaced, the tunneling is continued, the upper wall of the well wall is penetrated, and slurry B is injected into the well shaft through the casing (shown in figure 2).
The cement slurry B used at this time is required to have the following characteristics: the freezing point is not changed, and the water is combined to form a similar water-containing sand soil body.
Because water and sand are leaked in the shaft, the water content is more, and the strength of frozen water into ice is smaller than that of frozen water and sand which are frozen to form frozen soil in later construction by using a freezing method, the safety requirement of construction is not met, cement slurry is injected into the shaft through the sleeve, the water content in the shaft is reduced, and the strength after freezing is ensured to meet the requirement.
(3) Continuing to tunnel to the surface of the lower wall of the well wall, and after penetrating the lower wall of the well, fixing the sleeve to the bottom end of the lower wall of the well wall (as shown in figure 3).
(4) After the casing has passed through the wall of the well, a freeze pipe is placed in the casing and cement slurry C is injected between the casing and the freeze pipe (as shown in fig. 4).
Since the diameter of the freezing pipe is smaller than that of the sleeve, an annular gap space is formed between the freezing pipe and the sleeve, and the freezing pipe needs to be fixed by filling the annular gap, and thus, slurry C needs to be injected into the annular gap.
The cement slurry C in this step has the following characteristics: and cannot be insulated.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. A construction method for a freezing pipe sleeved with a sleeve to penetrate through the wall of an inclined shaft is characterized by comprising the following steps:
Step 1, tunneling downwards from the ground to the upper wall surface of the inclined shaft wall by using a drill bit sleeved with a sleeve, and injecting cement slurry A to the contact position of the sleeve and the inclined shaft wall through the sleeve, wherein the sleeve and the upper surface of the inclined shaft wall are fixed together when the cement slurry A is solidified, and the cement slurry A adopts slurry with short solidification time, high bonding strength, good waterproof performance and strong sealing performance;
Step 2, replacing a drill bit, continuing tunneling, penetrating through the upper wall of a well wall, and injecting cement slurry B into a well shaft through a sleeve, wherein the cement slurry B adopts slurry which does not change the freezing point and is combined with water to form a water-containing sand-like soil body;
step 3, tunneling is continued until the surface of the lower wall of the well wall, and after penetrating through the lower wall of the well, the sleeve is fixed to the bottom end of the lower wall of the well wall;
and 4, after the sleeve penetrates through the well wall, placing a freezing pipe in the sleeve, and injecting cement slurry C between the sleeve and the freezing pipe, wherein the cement slurry C has the characteristic of being incapable of insulating.
2. The construction method for a freezing pipe sleeved with a casing to penetrate through the wall of an inclined shaft as claimed in claim 1, wherein the diameter of the freezing pipe in the step 4 is smaller than the diameter of the casing.
3. A method of constructing a freeze pipe casing through a wall of an inclined well as claimed in claim 2, wherein an annular gap space is formed between the freeze pipe and the casing, and cement slurry C is injected into the annular gap space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455189.8A CN109577987B (en) | 2018-11-30 | 2018-11-30 | Construction method for penetrating freezing pipe of casing through inclined shaft wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455189.8A CN109577987B (en) | 2018-11-30 | 2018-11-30 | Construction method for penetrating freezing pipe of casing through inclined shaft wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109577987A CN109577987A (en) | 2019-04-05 |
| CN109577987B true CN109577987B (en) | 2024-05-10 |
Family
ID=65925798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811455189.8A Active CN109577987B (en) | 2018-11-30 | 2018-11-30 | Construction method for penetrating freezing pipe of casing through inclined shaft wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577987B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162335A (en) * | 2011-02-10 | 2011-08-24 | 中煤矿山建设集团有限责任公司 | A hole-forming method of drilling through an underground structure in an aquifer sand layer from the ground |
| KR20140080852A (en) * | 2012-12-20 | 2014-07-01 | 두산건설 주식회사 | Freezimg pipe and ground freezing method using freezimg pipe |
| CN104612694A (en) * | 2015-01-06 | 2015-05-13 | 中煤第一建设有限公司 | Handling method of freezing pipe in chamber |
| CN106837411A (en) * | 2017-02-04 | 2017-06-13 | 长江勘测规划设计研究有限责任公司 | The arrangement and method of a kind of buried shield tunnel filling and injecting slurry |
| CN106837389A (en) * | 2016-12-26 | 2017-06-13 | 北京城建集团有限责任公司 | A kind of Underground Subway Station vertical shaft and transverse passage-way freeze water-stopping method |
| CN106840228A (en) * | 2017-03-10 | 2017-06-13 | 中煤特殊凿井有限责任公司 | A kind of hydrological observation device that can pass through frost wall |
| CN108756955A (en) * | 2018-06-14 | 2018-11-06 | 中交第二航务工程局有限公司 | Shield tunnel gravity type sealing plugging structure and method |
-
2018
- 2018-11-30 CN CN201811455189.8A patent/CN109577987B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162335A (en) * | 2011-02-10 | 2011-08-24 | 中煤矿山建设集团有限责任公司 | A hole-forming method of drilling through an underground structure in an aquifer sand layer from the ground |
| KR20140080852A (en) * | 2012-12-20 | 2014-07-01 | 두산건설 주식회사 | Freezimg pipe and ground freezing method using freezimg pipe |
| CN104612694A (en) * | 2015-01-06 | 2015-05-13 | 中煤第一建设有限公司 | Handling method of freezing pipe in chamber |
| CN106837389A (en) * | 2016-12-26 | 2017-06-13 | 北京城建集团有限责任公司 | A kind of Underground Subway Station vertical shaft and transverse passage-way freeze water-stopping method |
| CN106837411A (en) * | 2017-02-04 | 2017-06-13 | 长江勘测规划设计研究有限责任公司 | The arrangement and method of a kind of buried shield tunnel filling and injecting slurry |
| CN106840228A (en) * | 2017-03-10 | 2017-06-13 | 中煤特殊凿井有限责任公司 | A kind of hydrological observation device that can pass through frost wall |
| CN108756955A (en) * | 2018-06-14 | 2018-11-06 | 中交第二航务工程局有限公司 | Shield tunnel gravity type sealing plugging structure and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109577987A (en) | 2019-04-05 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Qunying Inventor after: Li Ruizhi Inventor after: Dang Xifeng Inventor after: Guo Guangqiao Inventor after: Cao Tao Inventor after: Zhang Wangjun Inventor after: Hua Zhaowen Inventor after: Liu Qingbao Inventor after: Zheng Tianbin Inventor after: Liu Chengyong Inventor after: Ma Peng Inventor after: Liu Wei Inventor after: Fan Weiye Inventor after: Du Zhanling Inventor after: Song Wei Inventor after: Guo Yongfu Inventor after: Lv Wenhong Inventor after: Lu Lu Inventor after: Yue Fengtian Inventor after: Gong Shoucai Inventor before: Liu Wei Inventor before: Guo Guangqiao Inventor before: Cao Tao Inventor before: Zhang Wangjun Inventor before: Hua Zhaowen Inventor before: Liu Qingbao Inventor before: Zheng Tianbin Inventor before: Liu Chengyong Inventor before: Ma Peng Inventor before: Fan Weiye Inventor before: Lu Lu Inventor before: Gong Shoucai Inventor before: Guo Yongfu Inventor before: Lv Wenhong Inventor before: Yue Fengtian Inventor before: Song Wei Inventor before: Li Ruizhi Inventor before: Dang Xifeng |
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| CB03 | Change of inventor or designer information | ||
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| GR01 | Patent grant |