長(zhǎng)距離曲線(xiàn)巖石頂管技術(shù)用于供水管道建設(shè)
[1]黃智剛.長(zhǎng)距離曲線(xiàn)巖石頂管技術(shù)用于供水管道建設(shè)[J].中國(guó)給水排水,2020,36(20):39-44.
HUANG Zhi-gang.Application of Long-distance Curved Pipe Jacking for Crossing Rock Formation in Water Supply Pipeline Construction[J].China Water & Wastewater,2020,36(20):39-44.
點(diǎn)擊復(fù)制
HUANG Zhi-gang.Application of Long-distance Curved Pipe Jacking for Crossing Rock Formation in Water Supply Pipeline Construction[J].China Water & Wastewater,2020,36(20):39-44.
長(zhǎng)距離曲線(xiàn)巖石頂管技術(shù)用于供水管道建設(shè)
中國(guó)給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期數(shù): 2020年第20期 頁(yè)碼: 39-44 欄目: 出版日期: 2020-10-17
- Title:
- Application of Long-distance Curved Pipe Jacking for Crossing Rock Formation in Water Supply Pipeline Construction
- 關(guān)鍵詞:
- 供水管道; 巖石頂管; 曲線(xiàn)頂管
- 摘要:
- 長(zhǎng)距離供水管道受地形和選線(xiàn)的限制，必要時(shí)需穿越地質(zhì)條件復(fù)雜的山體，增加了工程建設(shè)的難度和風(fēng)險(xiǎn)。近年來(lái)，曲線(xiàn)巖石頂管技術(shù)逐漸被用于供水管道的鋪設(shè)，并獲得了部分成功案例和工程經(jīng)驗(yàn)，但在理論研究和施工工藝等方面仍有不足。結(jié)合某市長(zhǎng)距離引水工程實(shí)例、圍巖壓力理論研究以及三維有限元數(shù)值模擬，按照管道埋深界限劃分，提出并驗(yàn)證了適用于巖石地層頂管的圍巖壓力計(jì)算公式�；诂F(xiàn)有規(guī)范和計(jì)算方法，給出了管漿理想接觸條件下的巖石頂管摩阻力估算方法。分析了曲線(xiàn)頂進(jìn)時(shí)頂管的軸向應(yīng)力分布情況，總結(jié)出管節(jié)偏心度、截面核與頂管最大允許頂力之間的關(guān)系。
- Abstract:
- Limited by terrain and route selection, the long-distance water supply pipeline may cross a mountain with complicated geological conditions if necessary, which increases the difficulty and risk of project construction. In recent years, the curved pipe jacking for crossing rock formation has been gradually used for laying water supply pipes, and have some successful cases and engineering experience, however, it still has deficiencies in theoretical research and construction technology. Combining the example of a long distance water diversion project in a city, the theoretical study of surrounding rock pressure and the three-dimensional finite element numerical simulation, the calculation formula of surrounding rock pressure adaptable for rock pipe jacking is proposed and verified according to the pipeline depth limit division. Based on the existing specifications and calculation methods, a method for estimating the friction resistance of rock pipe jacking under ideal contact conditions of pipe slurry is provided. The axial stress distribution of the pipe during curved pipe jacking is analyzed, and the relationship among the eccentricity of the pipe joint, the core of the section and the maximum allowable jacking force of the pipe is summarized.
相似文獻(xiàn)/References:
[1]胡群芳,孫,肖瑞,等.城市綜合管廊供水管道彎管及其支墩體系力學(xué)分析[J].中國(guó)給水排水,2020,36(20):19.
HU Qun-fang,SUN Yan,XIAO Rui,et al.Mechanical Analysis of Bends and Supports of Water Supply Pipeline in Urban Utility Tunnel[J].China Water & Wastewater,2020,36(20):19.
[2]楊振東,曹亞龍,張巧玲,等.含泄漏供水管道瞬變流動(dòng)特征及泄漏定位[J].中國(guó)給水排水,2021,37(15):35.
YANG Zhen-dong,CAO Ya-long,ZHANG Qiao-ling,et al.Transient Flow Characteristics and Leakage Location of Water Supply Pipeline with Leakage Points[J].China Water & Wastewater,2021,37(20):35.
[3]何楠,郭浩,劉菁,等.供水管道中金屬污染物富集與釋放研究進(jìn)展[J].中國(guó)給水排水,2022,38(2):21.
HE Nan,GUO Hao,LIU Jing,et al.Research Progress on Enrichment and Release of Metal Pollutants in Water Supply Pipelines[J].China Water & Wastewater,2022,38(20):21.
更新日期/Last Update: 2020-10-17
