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黃滿華1,劉世敏2,王熾欣1(1 廣東天聯(lián)集團有限公司,廣州 510600; 2 潮州供電局,潮州 521000)
[摘要]220kV來安變電站工程首次在廣東省電網(wǎng)建設(shè)中采用真空堆載聯(lián)合預(yù)壓法進行軟弱地基處理并取得了成功。通過對工程全過程、多方面、多手段的監(jiān)測與分析,驗證了真空堆載聯(lián)合預(yù)壓法的固結(jié)機理。建議場地平均固結(jié)度采用在滲透固結(jié)區(qū)平均固結(jié)度基礎(chǔ)上考慮滲流場影響區(qū)土體壓縮系數(shù)的方法進行計算。
[關(guān)鍵詞]真空-堆載聯(lián)合預(yù)壓法;變電站設(shè)計;軟弱地基處理
中圖分類號:TU472文獻標(biāo)識碼:A文章編號:1002-848X(2012)04-0128-05
Practice and summary of vacuum-accumulation preloading method applied in electric substation design
Huang Manhua1, Liu Shimin2, Wang Chixin1(1 Guangdong Tian Lian Group Co., Ltd., Guangzhou 510600, China; 2 Chaozhou Power Supply Bureau, Chaozhou 521000, China)
Abstract:Vacuum-accumulation preloading method (VPM) has been successfully applied in soft ground foundation treatment of 220kV Lai’an Electric Substation. The consolidation essentials of VPM has been approved by monitoring analysis in multi-aspects and multiple methods in the whole progress. A formula for average degree of consolidation of the foundation, which is based on the average degree of consolidation of the infiltrating-consolidation extent and is modulated by coefficient considering the seepage-impacting extent consolidation, was proposed.
Keywords:vacuum-accumulation preloading method; electric substation design; soft ground foundation treatment
作者簡介:黃滿華,碩士,工程師,Email:huangmanhua@gedi.com.cn。
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