钱江新城两翼“城市阳台”工程基坑降水设计与施工分析

Foundation pit precipitation design and construction analysis for two-flank shaped "urban balcony" project of Qianjiang New City

针对杭州钱江新城两翼"城市阳台"工程的基坑具有开挖面大,场地内地下水位较高,基坑南侧由于濒临钱塘江而具有极强的补水边界等特点,探讨和比较了可应用于该场地的基坑降水设计和施工方案。施工效果和现场监测表明,应用本文所述的降水方案达到了预期效果,保证了基坑开挖顺利施工。

For the two - flank shaped＂ urban balcony＂ project of Qianjiang New City of Hangzhou City,in view of such characteristics as large excavation area for pit foundation, high ground water level within the site, and there is a strong makeup water limit as the south side of the foundation pit faces Qiantang river, the foundation pit precipitation design and construction scheme are discussed and compared. The construction result and the site monitoring showed that by application of the abovementioned precipitation scheme, the expected result was reached, and the smooth excavation and construction of the pit foundation was ensured.