CN103233742A - Treatment measure of bad geological section for long distance pipeline coal conveying - Google Patents
Treatment measure of bad geological section for long distance pipeline coal conveying Download PDFInfo
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- CN103233742A CN103233742A CN2013101739514A CN201310173951A CN103233742A CN 103233742 A CN103233742 A CN 103233742A CN 2013101739514 A CN2013101739514 A CN 2013101739514A CN 201310173951 A CN201310173951 A CN 201310173951A CN 103233742 A CN103233742 A CN 103233742A
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Abstract
The invention discloses a treatment measure of a bad geological section for long distance pipeline coal conveying. The treatment measure includes the following measures: 1) fault fracture zone treatment measure: measures of forepoling or grouting and water plugging and the like are adopted, preliminary bracing and permanent lining are performed in time, the forepoling can adopt the measures of an advanced anchor bolt, an advanced small pipe or small pipe shed + steel arch and the like; 2) inrush (flooding) accident treatment measure: for a surrounding rock section which may have inrush (flooding) accidents, an advanced hole probing forecast measure is adopted to perform advanced grouting and water plugging. A karst water discharge area is close to a karst water discharge port, and a drainage measure is used for treatment. When water seepage amount on the sprayed concrete surface in a tunnel is large, or stranded inrush exists, a technical measure with drainage as a main measure can be adopted. Through technical treatment of the bad geological section, the treatment measure reduces difficulty in a construction process, improves construction speed and efficiency, and guarantees smooth construction and safe late project operation.
Description
Technical field
The present invention relates to the defeated coal bad geological section treatment measures of a kind of pipeline coal transporting bad geological section treatment measures, especially long-distance pipe.
Background technology
Object of construction production is built in bad geological section, itself just exists various danger, in order to deal with problems, by small-sized simulated experiment, this method can reasonablely be handled the generation of fault belt and prominent (gushing) water accident well, coal slurry pipeline is carried under relatively safer condition moved.
Summary of the invention
The purpose of this invention is to provide the defeated coal bad geological section treatment measures of a kind of long-distance pipe.
For overcoming the prior art deficiency, the present invention solves like this: the unfavorable geology that this engineering tunnel may run into is mainly situations such as fault belt and prominent (gushing) water, in conjunction with convey coal pipe construction of tunnel characteristics and other similar engineering experience, propose the defeated coal bad geological section treatment measures of long-distance pipe, this measure is carried out according to the following steps:
(1) fault belt treatment measures
Poor at the zone of fracture geological conditions, cause tunnel roof, abutment wall to occur caving in easily behind the country rock excavation, fall piece, the cavitation condition is poor, short from the steady time, even accident such as roof fall, design is considered to carry out leading inspecting hole before excavation, finds out fault zone zone of fracture geological condition and underground water, according to the geological conditions after finding out, groundwater condition, take measures such as advance support or grouting for water blocking, in time apply preliminary bracing and permanent lining, secondary lining.Advance support can adopt advance anchor bolt, leading ductule or tubule canopy+measures such as steel bow member.
(2) prominent (gushing) water accident treatment measure
In construction of tunnel, when the tunnel by IV level, V level country rock Fu Shui location, as deal with improperly, prominent (gushing) water accident very easily takes place.Prominent (gushing) water accident is administered and must be suited measures to local conditions, based on row, and stifled row combination.At first should to the country rock location of (gushing) water phenomenon of may dashing forward, take the forecast measure of leading inspecting hole according to the tunnel geology exploration report in the construction, carry out the pre-grouting water reinforcement.When the tunnel is in the karst water discharge area, and nearer apart from its scavenge port, adopt drainage measure to handle.Sprayed mortar sweat amount is bigger in the tunnel, or when strand shape water burst is arranged into, can the row of taking be main technical measures also.
Beneficial effect of the present invention: by the technical finesse to bad location, not only reduced the difficulty in the work progress, and improved speed and the efficient of construction, guaranteed the safety of the smooth of construction and end item operation.
The specific embodiment
According to the tunnel geology data, the unfavorable geology that this engineering tunnel may run into is mainly situations such as fault belt and prominent (gushing) water, in conjunction with convey coal pipe construction of tunnel characteristics and other similar engineering experience, at several unfavorable geology phenomenons, take following treatment measures respectively:
(1) fault belt treatment measures
Poor at the zone of fracture geological conditions, cause tunnel roof, abutment wall to occur caving in easily behind the country rock excavation, fall piece, the cavitation condition is poor, short from the steady time, even accident such as roof fall, design is considered to carry out leading inspecting hole before excavation, finds out fault zone zone of fracture geological condition and underground water, according to the geological conditions after finding out, groundwater condition, take measures such as advance support or grouting for water blocking, in time apply preliminary bracing and permanent lining, secondary lining.Advance support can adopt advance anchor bolt, leading ductule or tubule canopy+measures such as steel bow member.
(2) prominent (gushing) water accident treatment measure
In construction of tunnel, when the tunnel by IV level, V level country rock Fu Shui location, as deal with improperly, prominent (gushing) water accident very easily takes place.Prominent (gushing) water accident is administered and must be suited measures to local conditions, based on row, and stifled row combination.At first should to the country rock location of (gushing) water phenomenon of may dashing forward, take the forecast measure of leading inspecting hole according to the tunnel geology exploration report in the construction, carry out the pre-grouting water reinforcement.When the tunnel is in the karst water discharge area, and nearer apart from its scavenge port, adopt drainage measure to handle.Sprayed mortar sweat amount is bigger in the tunnel, or when strand shape water burst is arranged into, can the row of taking be main technical measures also.
Claims (1)
1. a long-distance pipe is failed coal bad geological section treatment measures, it is characterized in that being undertaken by following step:
(1) fault belt treatment measures
Poor at the zone of fracture geological conditions, cause tunnel roof, abutment wall to occur caving in easily behind the country rock excavation, fall piece, the cavitation condition is poor, short from the steady time, even accident such as roof fall, design is considered to carry out leading inspecting hole before excavation, finds out fault zone zone of fracture geological condition and underground water, according to the geological conditions after finding out, groundwater condition, take measures such as advance support or grouting for water blocking, in time apply preliminary bracing and permanent lining, secondary lining; Advance support can adopt advance anchor bolt, leading ductule or tubule canopy+measures such as steel bow member;
(2) prominent (gushing) water accident treatment measure
In construction of tunnel, when the tunnel by IV level, V level country rock Fu Shui location, as deal with improperly, prominent (gushing) water accident very easily takes place.Prominent (gushing) water accident is administered and must be suited measures to local conditions, based on row, and stifled row combination; At first should to the country rock location of (gushing) water phenomenon of may dashing forward, take the forecast measure of leading inspecting hole according to the tunnel geology exploration report in the construction, carry out the pre-grouting water reinforcement; When the tunnel is in the karst water discharge area, and nearer apart from its scavenge port, adopt drainage measure to handle; Sprayed mortar sweat amount is bigger in the tunnel, or when strand shape water burst is arranged into, can the row of taking be main technical measures also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101739514A CN103233742A (en) | 2013-05-11 | 2013-05-11 | Treatment measure of bad geological section for long distance pipeline coal conveying |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101739514A CN103233742A (en) | 2013-05-11 | 2013-05-11 | Treatment measure of bad geological section for long distance pipeline coal conveying |
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| CN103233742A true CN103233742A (en) | 2013-08-07 |
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| CN2013101739514A Pending CN103233742A (en) | 2013-05-11 | 2013-05-11 | Treatment measure of bad geological section for long distance pipeline coal conveying |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775126A (en) * | 2014-01-09 | 2014-05-07 | 安徽水安建设集团股份有限公司 | Grotto preliminary bracing construction method adopted when underground water seeps |
| CN103850688A (en) * | 2014-03-24 | 2014-06-11 | 昆明理工大学 | Method for dynamically superimposing coupling support on large-section roadway in complicated fault fracture zone |
| CN105888693A (en) * | 2016-06-01 | 2016-08-24 | 中国云南路建集团股份公司 | Treating construction method for water burst of small underground river of highway tunnel |
| CN112610227A (en) * | 2020-12-14 | 2021-04-06 | 山东大学 | Rapid construction method for open TBM to penetrate through unfavorable geology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775126A (en) * | 2014-01-09 | 2014-05-07 | 安徽水安建设集团股份有限公司 | Grotto preliminary bracing construction method adopted when underground water seeps |
| CN103775126B (en) * | 2014-01-09 | 2015-12-30 | 安徽水安建设集团股份有限公司 | A kind of cavern's preliminary bracing construction method when having underground water to ooze out |
| CN103850688A (en) * | 2014-03-24 | 2014-06-11 | 昆明理工大学 | Method for dynamically superimposing coupling support on large-section roadway in complicated fault fracture zone |
| CN105888693A (en) * | 2016-06-01 | 2016-08-24 | 中国云南路建集团股份公司 | Treating construction method for water burst of small underground river of highway tunnel |
| CN112610227A (en) * | 2020-12-14 | 2021-04-06 | 山东大学 | Rapid construction method for open TBM to penetrate through unfavorable geology |
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Address after: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Applicant after: Wuhan Design and Research Institute Co., Ltd. pf China Coal Technology & Engineering Group Address before: 430064 Hubei Province, Wuhan city Wuchang District Wuluo Road No. 442 Applicant before: Wuhan Design and Research Institute of China Coal Technology & Engineering Group |
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Free format text: CORRECT: APPLICANT; FROM: WUHAN DESIGN AND RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY + ENGINEERING GROUP TO: WUHAN DESIGN AND RESEARCH INSTITUTE CO., LTD. PF CHINA COAL TECHNOLOGY + ENGINEERING GROUP |
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Application publication date: 20130807 |