CN103234077A - 长距离管道输煤在地震断裂带的保护方法 - Google Patents

长距离管道输煤在地震断裂带的保护方法 Download PDF

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CN103234077A
CN103234077A CN2013101737824A CN201310173782A CN103234077A CN 103234077 A CN103234077 A CN 103234077A CN 2013101737824 A CN2013101737824 A CN 2013101737824A CN 201310173782 A CN201310173782 A CN 201310173782A CN 103234077 A CN103234077 A CN 103234077A
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pipeline
earthquake
pipe
protection method
take
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吴嘉林
张卫东
苏华
黎武
赵畅
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Wuhan Design and Research Institute of China Coal Technology and Engineering Group
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Wuhan Design and Research Institute of China Coal Technology and Engineering Group
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Abstract

本发明公开了一种长距离管道输煤在地震断裂带的保护方法。包括以下方式:1)管线与活动断裂带平行时,管线设在其外200m;与管线交叉时,选择合适的交角,或采取管线水平弯曲补偿形式敷设;2)尽量采取弹性敷设来处理管道转角;3)加宽管沟,回填松散土;4)对可能发生崩塌和沙土地震液化地区,应采取支挡、削坡、排水等工程方法。以此降低管道施工在地震断裂带的施工难度和提高管道在运行作业过程中的安全程度。

Description

长距离管道输煤在地震断裂带的保护方法
技术领域
本发明涉及一种地震断裂带施工保护方法,具体涉及长距离管道输煤在地震断裂带的保护方法。
背景技术
在各类工业建筑施工中,在工程设计的时候,都要尽可能的避开地震断裂带,这样会减少施工难度,且可以降低地震断裂带对施工项目在运行过程中带来不必要的灾害。如果在工程施工中,无法避开地震断裂带,就需要尽可能的降低地震断裂带对施工项目所来带的影响。
发明内容
本发明的目的是提供一种安全运行,降低地震断裂带对管道运行的影响的长距离管道输煤在地震断裂带的保护方法。
为了克服现有技术的不足,本发明的技术方案是这样解决的:长距离管道输煤在地震断裂带的保护方法,其特征在于按下述步骤进行:
管道穿过地震区时,瞬间的地震波传播而引起的地面运动,一般不会对高质量的焊接钢管造成直接的损坏,地震区中的活动断裂带,在地震时将对管道产生较大的应力。
根据灾害地区范围和潜在的地面运动,管道的应力分析应考虑管道的非线性力,较大的管道变形和弹塑性管道材料。由于钢管本身具有柔性,且滑坡、断裂带运动的可能性较小,因而,管道穿越潜在的滑坡和活动断裂带区域是,允许管道产生有限的非弹性应变。
根据地质勘察资料,管道穿越中朝准地台的陕甘宁台坳和汾渭地堑二个二级构造单元,管道选线敷设及保护方法一般有:
(1)管线与活动断裂带平行时,管线设在其外200m;与管线交叉时,选择合适的交角,或采取管线水平弯曲补偿形式敷设。
(2)尽量采取弹性敷设来处理管道转角。
(3)加宽管沟,回填松散土。
(4)对可能发生崩塌和沙土地震液化地区,应采取支挡、削坡、排水等工程方法。
本发明与现有技术相比,具有投资省,施工简便,可操作性强,极大的提高了管道在地震断裂带区域的抗震能力,保证管道运营安全。
具体实施方式
下面给出实施例以对本发明作出进一步说明,但所给出的实施例不能理解为对本发明保护范围的限制,因而本专业的技术人员根据上述本发明的内容和设计思想所作出的非本质的改进和调整也属于本发明的保护范围。
实施例1
管线与活动断裂带平行时,管线设在其外200m;与管线交叉时,选择合适的交角,或采取管线水平弯曲补偿形式敷设。
实施例2
尽量采取弹性敷设来处理管道转角。
实施例3
加宽管沟,回填松散土。
实施例4
对可能发生崩塌和沙土地震液化地区,应采取支挡、削坡、排水等工程方法。

Claims (2)

1.长距离管道输煤在地震断裂带的保护方法,其特征在于:管道穿过地震区时,瞬间的地震波传播而引起的地面运动,一般不会对高质量的焊接钢管造成直接的损坏,地震区中的活动断裂带,在地震时将对管道产生较大的应力。
根据灾害地区范围和潜在的地面运动,管道的应力分析应考虑管道的非线性力,较大的管道变形和弹塑性管道材料。由于钢管本身具有柔性,且滑坡、断裂带运动的可能性较小,因而,管道穿越潜在的滑坡和活动断裂带区域时,允许管道产生有限的非弹性应变。
2.根据地质勘察资料,管道穿越中朝准地台的陕甘宁台坳和汾渭地堑二个二级构造单元,所述长距离管道输煤在地震断裂带的保护方法,其特征在于按以下步骤进行:
(1)管线与活动断裂带平行时,管线设在其外200m;与管线交叉时,选择合适的交角,或采取管线水平弯曲补偿形式敷设。
(2)尽量采取弹性敷设来处理管道转角。
(3)加宽管沟,回填松散土。
(4)对可能发生崩塌和沙土地震液化地区,应采取支挡、削坡、排水等工程方法。
CN2013101737824A 2013-05-11 2013-05-11 长距离管道输煤在地震断裂带的保护方法 Pending CN103234077A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112613094A (zh) * 2020-12-01 2021-04-06 西安石油大学 一种砂土盒的承载力评价方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1837666A (zh) * 2005-03-25 2006-09-27 衡水长江预应力有限公司 大截面圆心应力抗震涵管及其制备工艺
CN102162554A (zh) * 2011-04-12 2011-08-24 中国十九冶集团有限公司 矿浆管道在地震断裂带地段的敷设方法和敷设结构
CN102878351A (zh) * 2012-10-18 2013-01-16 中煤科工集团武汉设计研究院 一种长距离管道输煤的管道敷设方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1837666A (zh) * 2005-03-25 2006-09-27 衡水长江预应力有限公司 大截面圆心应力抗震涵管及其制备工艺
CN102162554A (zh) * 2011-04-12 2011-08-24 中国十九冶集团有限公司 矿浆管道在地震断裂带地段的敷设方法和敷设结构
CN102878351A (zh) * 2012-10-18 2013-01-16 中煤科工集团武汉设计研究院 一种长距离管道输煤的管道敷设方法

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海南省国土环境资源厅: "地质灾害防治知识", 《海南省国土环境资源厅网站》, 28 April 2001 (2001-04-28) *
管道防腐胶带: "断层管线保护措施及选线建议", 《新浪博客》, 2 June 2012 (2012-06-02) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112613094A (zh) * 2020-12-01 2021-04-06 西安石油大学 一种砂土盒的承载力评价方法

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Application publication date: 20130807