CN111677521B - 用于地铁区间隧道施工中高压燃气管沉降控制方法 - Google Patents
用于地铁区间隧道施工中高压燃气管沉降控制方法 Download PDFInfo
- Publication number
- CN111677521B CN111677521B CN202010611830.3A CN202010611830A CN111677521B CN 111677521 B CN111677521 B CN 111677521B CN 202010611830 A CN202010611830 A CN 202010611830A CN 111677521 B CN111677521 B CN 111677521B
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- CN
- China
- Prior art keywords
- pressure gas
- grouting
- gas pipe
- pipe
- shield
- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Abstract
Description
倾斜角度/° | 45 | 60 | 75 |
角度控制准确率/% | 80 | 90 | 95 |
成孔合格率/% | 85 | 91 | 96 |
综合对比 | 差 | 良 | 优 |
参数 | 试验前 | 试验后 | 试验目的 |
掘进速度mm/min | 40-50 | 30 | 控制对土体的扰动 |
刀盘转速r/min | 1.3~1.5 | 1.0 | 控制对土体的扰动 |
总推力kN | 2500~3000 | 1500~2000 | 控制高压燃气管的隆起 |
刀盘扭矩kN.m | 4000~5000 | 2500~3000 | 控制高压燃气管的隆起 |
注浆压力/bar | 3 | 5 | 确保壁后注浆饱满控制沉降 |
土压/bar | 0.6~1.0 | 1.0~1.2 | 确保土舱压力平衡控制沉降 |
每环注浆量/m<sup>3</sup> | 10 | 12 | 确保壁后注浆饱满控制沉降 |
参数 | 试验前 | 试验后 | 试验目的 |
注浆压力 | 2~3bar | 6~8bar | 提高注浆密实度抵消部分沉降 |
注浆量 | 1m<sup>3</sup> | 2m<sup>3</sup> | 提高注浆密实度抵消部分沉降 |
注浆深度 | 0.3m | 0.6m | 增大注浆加固范围抵消部分沉降 |
注浆速度 | 1.0m<sup>3</sup>/h | 0.5m<sup>3</sup>/h | 增大注浆加固范围抵消部分沉降 |
浆液类型 | 单液浆 | 双液浆 | 缩短凝固时间提高加固效果 |
浆液配比 | 水灰比1:1 | 水玻璃:水灰比0.8:1:1 | 缩短凝固时间提高加固效果 |
Claims (3)
Priority Applications (1)
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CN202010611830.3A CN111677521B (zh) | 2020-06-30 | 2020-06-30 | 用于地铁区间隧道施工中高压燃气管沉降控制方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010611830.3A CN111677521B (zh) | 2020-06-30 | 2020-06-30 | 用于地铁区间隧道施工中高压燃气管沉降控制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111677521A CN111677521A (zh) | 2020-09-18 |
CN111677521B true CN111677521B (zh) | 2021-02-19 |
Family
ID=72456924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202010611830.3A Active CN111677521B (zh) | 2020-06-30 | 2020-06-30 | 用于地铁区间隧道施工中高压燃气管沉降控制方法 |
Country Status (1)
Country | Link |
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CN (1) | CN111677521B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115095711A (zh) * | 2022-06-21 | 2022-09-23 | 广东易力建安工程有限公司 | 一种双重防腐涂塑复合管的施工方法 |
CN115262530B (zh) * | 2022-09-29 | 2022-12-16 | 北京城建设计发展集团股份有限公司 | 用于地下结构不均匀沉降治理的注浆方法和系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190294A (en) * | 1978-08-17 | 1980-02-26 | The Robbins Company | Excavator for use in a tunneling shield |
JP4657402B2 (ja) * | 1998-09-11 | 2011-03-23 | 株式会社ブリヂストン | 地山の固結、補強に用いる注入管 |
CN103670427B (zh) * | 2013-12-24 | 2016-04-13 | 中铁十九局集团第三工程有限公司 | 十字交叉开挖支撑后拆式隧道施工方法 |
CN107130475A (zh) * | 2017-06-27 | 2017-09-05 | 中铁第四勘察设计院集团有限公司 | 一种输水管道下穿无砟轨道路基变形控制与修复结构及方法 |
CN108979659B (zh) * | 2018-07-04 | 2022-02-01 | 中铁第一勘察设计院集团有限公司 | 软土富水大断面隧道群下穿构筑物的加固结构及方法 |
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2020
- 2020-06-30 CN CN202010611830.3A patent/CN111677521B/zh active Active
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Inventor after: Liu Qi Inventor after: Liu Yaqiong Inventor after: Liu Zhenzhong Inventor after: Fang Shitao Inventor after: Zhang Shengjie Inventor after: Wang Feng Inventor after: Zhao Xin Inventor after: Zhou Xiangang Inventor after: Li Wei Inventor before: Liu Qi Inventor before: Liu Zhenzhong Inventor before: Fang Shitao Inventor before: Zhang Shengjie Inventor before: Wang Feng Inventor before: Zhao Xin Inventor before: Zhou Xiangang Inventor before: Li Wei |
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Address after: No.8, section 4, East 1st ring road, Jinjiang District, Chengdu, Sichuan 610066 Patentee after: SINOHYDRO BUREAU 5 Co.,Ltd. Patentee after: China Power Construction Railway Construction Investment Group Co.,Ltd. Address before: No.8, section 4, East 1st ring road, Jinjiang District, Chengdu, Sichuan 610066 Patentee before: SINOHYDRO BUREAU 5 Co.,Ltd. Patentee before: POWERCHINA RAILWAY CONSTRUCTION Co.,Ltd. |
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