頂管施工的地表沉降數(shù)值分析和頂力計(jì)算
[1]陳楊,馬保松,曾聰.頂管施工的地表沉降數(shù)值分析和頂力計(jì)算[J].中國(guó)給水排水,2020,36(20):27-31.
CHEN Yang,MA Bao-song,ZENG Cong.Numerical Analysis of Surface Settlement and Calculation of Jacking Force for Pipejacking Construction[J].China Water & Wastewater,2020,36(20):27-31.
點(diǎn)擊復(fù)制
CHEN Yang,MA Bao-song,ZENG Cong.Numerical Analysis of Surface Settlement and Calculation of Jacking Force for Pipejacking Construction[J].China Water & Wastewater,2020,36(20):27-31.
頂管施工的地表沉降數(shù)值分析和頂力計(jì)算
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 頁碼: 27-31 欄目: 出版日期: 2020-10-17
- Title:
- Numerical Analysis of Surface Settlement and Calculation of Jacking Force for Pipejacking Construction
- 摘要:
- 閩江北水南調(diào)(平潭引水)工程管道施工將采用非開挖頂管法施工，穿越地層主要有淤泥質(zhì)土層、中砂層及中風(fēng)化凝灰熔巖。頂管頂力計(jì)算得到了4個(gè)頂進(jìn)段的頂力預(yù)測(cè)值。根據(jù)已有的工作成果，將頂管施工對(duì)周圍土體產(chǎn)生的擾動(dòng)情況進(jìn)行了分析總結(jié)。通過模擬頂管地表沉降并分析規(guī)律，將模擬結(jié)果與Peck公式計(jì)算結(jié)果進(jìn)行對(duì)比，驗(yàn)證了所建模型得到的地層沉降的基本趨勢(shì)，分析了不同橫斷面沉降幅度變化的可能原因，為該工程施工提供了設(shè)計(jì)參考。
- Abstract:
- Trenchless pipe jacking technology is proposed to be used in the pipeline construction of Minjiang River North to South Water Diversion Project（Pingtan Water Diversion Project）, and the strata mainly includes silt soil layer, middle sand layer and middle weathering lava. The predicted values of jacking force of four jacking sections are obtained by calculation. Based on the previous results, the perturbation of the surrounding soil is investigated. By simulating the surface settlement of pipe jacking and analyzing the patterns, the simulation results are compared with the calculation results from the Peck formula, the basic trend of ground settlement obtained by the established model is verified. And the possible reasons for the change of settlement amplitude of different cross sections are discussed, which provides preliminary supports for the engineering construction design.
相似文獻(xiàn)/References:
[1]賈凱,武永新,徐振博.美蘭機(jī)場(chǎng)排水工程的多孔小間距頂管施工關(guān)鍵技術(shù)[J].中國(guó)給水排水,2021,37(22):113.
JIA Kai,WU Yong-xin,XU Zhen-bo.Key Technology of Multi-hole and Small-spacing Pipe Jacking Construction in Meilan Airport Drainage Project[J].China Water & Wastewater,2021,37(20):113.
更新日期/Last Update: 2020-10-17
