CN102536248A - Replacement method for filling retarded cement paste in annular space of freezing pipe - Google Patents
Replacement method for filling retarded cement paste in annular space of freezing pipe Download PDFInfo
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- CN102536248A CN102536248A CN2011101953059A CN201110195305A CN102536248A CN 102536248 A CN102536248 A CN 102536248A CN 2011101953059 A CN2011101953059 A CN 2011101953059A CN 201110195305 A CN201110195305 A CN 201110195305A CN 102536248 A CN102536248 A CN 102536248A
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Abstract
The invention provides a replacement method for filling retarded cement paste in an annular space between a freezing pipe and a stratum. The replacement method comprises the following steps that: 1) preparation of the retarded cement paste: the preparation raw materials of the retarded cement paste contain water, cement and a retarder, the dosage of the retarded cement paste is calculated according to the replacement depth of the annular space and the three raw materials are mixed in a cement paste pool according to a ratio to ensure that the cement paste is uniform; and 2) filling of the annular space: 1. after a frozen hole is formed, hole sweeping is performed, and when the cement paste from the frozen hole is uniform, the operation is stopped; and 2. a high pressure cement paste pipeline is connected, the inlet end of a paste pump is connected with a filtering joint and placed at the bottom of the cement paste pool, the outlet end is connected with the cement paste inlet end of a drill pipe in a sealing manner, the paste pump is started to ensure that the cement paste is completely pumped in the bottom of the frozen hole and reaches a proper height, the drill pipe is pulled out and the freezing pipe is placed downwards. By adopting the method, fewer raw materials are used for construction under the premise of ensuring the strength of the retarded cement, the adopted devices and steps are fewer and the smooth downward placement of the freezing pipe can be ensured.
Description
Technical field
The present invention relates to a kind of extended slurry method of replacing that is used for the filling of freezing pipe annulus, belong to the freezing technology field.
Background technology
Because the safety and effectiveness of construction freezing method, present increasing pit shaft adopts construction freezing method.Along with the increase of mine shaft depth, in the complete dark frozen construction, the deep freezing pipe possibly pass down-hole structure such as ingate, sump or connection roadway.After freezing period end frost wall thaws naturally or forces to thaw; Annulus in the freezing hole construction between freezing pipe and the freezing hole has played the conducting effect; The water bearing ground that freezing hole passes possibly be delivered to a large amount of underground water positions such as ingate, tunnel through annulus, can cause the well accident of flooding when serious.Solve annulus water guide problem and can adopt cement paste displacement mud.
The method of annular filling between a kind of freezing pipe and country rock (the Chinese patent publication number is CN101225740) discloses the preparation method and the stowing operation of cement paste; The preparation raw material of cement grout comprises cement, water, clay or expansion agent, retarding agent, ground caustic, amine powder, nitrile powder, and each composition stirs for use by weight ratio; At first regulate clay slurry during filling after require; Carry boring and lay down drill bit, the underlying hollow drill pumps into extended slurry behind 5～8m at the bottom of the freezing hole, extracts drilling rod; Transfer freezing pipe, filling is accomplished.Visible by said method, there is the problem that raw material type is more and construction is comparatively loaded down with trivial details that adopts.
Summary of the invention
It is few to the purpose of this invention is to provide a kind of retarded cement raw material consumption, and employing equipment and step are less, can ensure that freezing pipe transfers the extended slurry method of replacing that is used for the filling of freezing pipe annulus of requirement smoothly,
The objective of the invention is to realize through following technical scheme:
A kind of method of replacing that is used for the annulus filling extended slurry between freezing pipe and the stratum of the present invention; Its method of replacing is: one, the preparation of extended slurry: the extended slurry raw material comprises water, cement and retarding agent; The consumption of extended slurry is replaced depth calculation according to annulus, and three kinds of raw materials are mixed to slurries in proportion in the cement stock tank even; Two, annulus filling: 1. carry out cleaning bottom of hole behind the whole hole of freezing hole, treat that freezing hole returns mud and slurry matter and stops when even; 2. connect the high-pressure slurry pipeline, pump slurry into a mouthful end connection transition joint and transfer to the cement paste stock tank, the port of export and drilling rod mud entrance end are tightly connected; Start slush pump; After pumping into freezing hole bottom to suitable height fully to cement grout, extract drilling rod, transfer freezing pipe.
The present invention has the following advantages: under the prerequisite that guarantees retarded cement intensity, adopt few raw material type of trying one's best to construct, employing equipment and step are less, can ensure the requirement that freezing pipe is transferred smoothly.
Description of drawings
Fig. 1 is retarded cement slurries permutation graphs;
Fig. 2 transfers back extruding extended slurry filling annulus sketch map for freezing pipe;
Fig. 3 sucks end filter sketch map for cement paste.
The specific embodiment
The specific embodiment of the invention provides a kind of method of replacing that is used for annulus filling extended slurry between freezing pipe and the stratum (is seen Fig. 1～Fig. 3); Its method of replacing is: one, the preparation of extended slurry: the extended slurry raw material comprises water, cement and retarding agent; Described cement is the expansion portland cement; The weight ratio of said water and cement is 1: 1～2: 1; Said retarding agent addition is 2%～3% of a cement weight, and the consumption of extended slurry is replaced depth calculation according to annulus, and three kinds of raw materials are mixed to slurries in proportion in the cement stock tank even; Two, annulus filling: 1. carry out cleaning bottom of hole behind the whole hole of freezing hole, treat that freezing hole returns mud slurry matter and stops when even; 2. with high-pressure slurry pipeline 3 slush pump 1 is connected with hollow drill 6 simultaneously in clear hole, the port of export and the drilling rod mud entrance end of slush pump 1 is tightly connected startup slush pump 1; Begin to replace mud 7 from the bottom; The mud replacement amount calculates by design filling ring-type spatial altitude, and displacement finishes, and extracts hollow drill 6; Transfer freezing pipe 10, the slow setting slurries are filled in the annulus; 3. clean drill bit residual water mud, elimination stock tank bottom dregs.
The suction end mounting filtering device 5 of said high-pressure slurry pipeline 3 cement pastes; Prevent that foreign matter and outstanding absurd creature from getting into pipeline; Especially prevent the obstruction of drilling rod and drill bit position, the bottom of said filter 5 is equipped with screen pack 11, and said screen pack 11 is 40～60 purpose stainless (steel) wires.
The above; Be merely the preferable specific embodiment of the present invention; These specific embodiment all are based on the different implementations under the general idea of the present invention, and protection scope of the present invention is not limited thereto, and any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. an extended slurry method of replacing that is used for the filling of freezing pipe annulus is characterized in that,
One, the preparation of extended slurry: the extended slurry raw material comprises water, cement and retarding agent, and the consumption of extended slurry is replaced depth calculation according to annulus, and three kinds of raw materials are mixed to slurries in proportion in the cement stock tank even;
Two, annulus filling: 1. carry out cleaning bottom of hole behind the whole hole of freezing hole, treat that freezing hole returns mud and slurry matter and stops when even; 2. connect the high-pressure slurry pipeline, pump slurry into mouthful end and connect transition joint and transfer to the cement paste stock tank, the port of export and drilling rod mud entrance end are tightly connected; Start slush pump; After pumping into freezing hole bottom to suitable height fully to cement grout, extract drilling rod, transfer freezing pipe.
2. the extended slurry method of replacing that is used for the filling of freezing pipe annulus according to claim 1 is characterized in that described cement is the expansion portland cement.
3. the extended slurry method of replacing that is used for the filling of freezing pipe annulus according to claim 2 is characterized in that the weight ratio of said water and cement is 1: 1～2: 1.
4. the extended slurry method of replacing that is used for the filling of freezing pipe annulus according to claim 3 is characterized in that said retarding agent addition is 2%～3% of a cement weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101953059A CN102536248A (en) | 2011-07-13 | 2011-07-13 | Replacement method for filling retarded cement paste in annular space of freezing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101953059A CN102536248A (en) | 2011-07-13 | 2011-07-13 | Replacement method for filling retarded cement paste in annular space of freezing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536248A true CN102536248A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101953059A Pending CN102536248A (en) | 2011-07-13 | 2011-07-13 | Replacement method for filling retarded cement paste in annular space of freezing pipe |
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| CN (1) | CN102536248A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938613A (en) * | 2014-04-08 | 2014-07-23 | 北方燕盛工程技术有限公司 | Freezing pipe injected grout non-return device |
| CN104045312A (en) * | 2014-06-18 | 2014-09-17 | 天地科技股份有限公司 | Operating fluid for mud replaced by delayed coagulation cement paste in freezing method construction and method thereof |
| CN104060992A (en) * | 2014-06-18 | 2014-09-24 | 天地科技股份有限公司 | Mud replacement device by long-setting liquid cement during freezing method construction |
| CN112127895A (en) * | 2020-09-23 | 2020-12-25 | 北京中煤矿山工程有限公司 | Horizontal freezing hole broken pipe rapid processing device and construction method |
| CN112963618A (en) * | 2021-05-19 | 2021-06-15 | 中煤科工能源科技发展有限公司 | Method and device for long-distance laying and continuous filling of filling pipeline of side coal mining cave |
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| JP2526335B2 (en) * | 1991-11-20 | 1996-08-21 | 戸田建設株式会社 | How to build a vertical shaft |
| CN2921278Y (en) * | 2006-07-11 | 2007-07-11 | 盛天宝 | Shaft sinking inter lining multipoint fast slip casting device by freezing method |
| CN101225740A (en) * | 2008-01-29 | 2008-07-23 | 中煤第一建设公司特殊凿井处 | Annular filling method for space between freezing pipe and surrounding rock |
| CN101694159A (en) * | 2009-10-22 | 2010-04-14 | 中煤第一建设公司第四十九工程处 | Technology for rapidly constructing air shaft under chill condition and process for sinking vertical shaft pit shaft |
| PL208175B1 (en) * | 2006-03-28 | 2011-03-31 | Akad Gorniczo Hutnicza | Production method of shaft enclosure with sections from up to down in a frozen orogenic belt |
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2011
- 2011-07-13 CN CN2011101953059A patent/CN102536248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2526335B2 (en) * | 1991-11-20 | 1996-08-21 | 戸田建設株式会社 | How to build a vertical shaft |
| PL208175B1 (en) * | 2006-03-28 | 2011-03-31 | Akad Gorniczo Hutnicza | Production method of shaft enclosure with sections from up to down in a frozen orogenic belt |
| CN2921278Y (en) * | 2006-07-11 | 2007-07-11 | 盛天宝 | Shaft sinking inter lining multipoint fast slip casting device by freezing method |
| CN101225740A (en) * | 2008-01-29 | 2008-07-23 | 中煤第一建设公司特殊凿井处 | Annular filling method for space between freezing pipe and surrounding rock |
| CN101694159A (en) * | 2009-10-22 | 2010-04-14 | 中煤第一建设公司第四十九工程处 | Technology for rapidly constructing air shaft under chill condition and process for sinking vertical shaft pit shaft |
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| 赵嘉亮等: "用缓凝水泥浆置换冻结孔内粘土浆的研究与应用", 《建井技术》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938613A (en) * | 2014-04-08 | 2014-07-23 | 北方燕盛工程技术有限公司 | Freezing pipe injected grout non-return device |
| CN103938613B (en) * | 2014-04-08 | 2016-01-20 | 北方燕盛工程技术有限公司 | Freezing pipe slip casting check device |
| CN104045312A (en) * | 2014-06-18 | 2014-09-17 | 天地科技股份有限公司 | Operating fluid for mud replaced by delayed coagulation cement paste in freezing method construction and method thereof |
| CN104060992A (en) * | 2014-06-18 | 2014-09-24 | 天地科技股份有限公司 | Mud replacement device by long-setting liquid cement during freezing method construction |
| CN104060992B (en) * | 2014-06-18 | 2016-03-09 | 天地科技股份有限公司 | Extended slurry displacement mud device in construction freezing method |
| CN112127895A (en) * | 2020-09-23 | 2020-12-25 | 北京中煤矿山工程有限公司 | Horizontal freezing hole broken pipe rapid processing device and construction method |
| CN112127895B (en) * | 2020-09-23 | 2022-06-28 | 北京中煤矿山工程有限公司 | Device for quickly processing broken pipe of horizontal freezing hole and construction method |
| CN112963618A (en) * | 2021-05-19 | 2021-06-15 | 中煤科工能源科技发展有限公司 | Method and device for long-distance laying and continuous filling of filling pipeline of side coal mining cave |
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Application publication date: 20120704 |