深基坑時(shí)空動(dòng)態(tài)響應(yīng)特性與圍護(hù)效果評(píng)估

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中圖分類號(hào)：TU753 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1005-8249（2025）02-0079-06

DOI：10.19860/j.cnki.issn1005-8249.2025.02.014

Abstract：Taking acommercial complex dep excavationin acertain cityastheresearch object，this studyemploys multiple support measures includingsoil-nailing walls，high-pressre jet grouting piles，cement-soil mixing piles，and isolationpiles to investigate the spatiotemporal dynamicresponse characteristicsand support efectivenessof complex deepexcavations.The resultsshowthatthereinforcement methodsachievedsignificant efects：the maximum streses atdistancesof1O，20and 3 0 m from the excavation were reduced to 27.4，24.7 and ，respectively，representing a decrease of over 40 % compared to theunstabilized condition.Themaximum horizontal deformationandvertical setlementvalues decreased bymore than 50 % ： Thereinforcement measures effectivelycontroledsoil stressanddeformation，ensuringsafeandeficientconstructionofthedep excavation project.

Key words： complex buildings；deep foundation pit； spatiotemporal dynamic response；enclosure effect

0 引言

隨著城市化進(jìn)程和建設(shè)技術(shù)的發(fā)展，深基坑工程越來(lái)越多。（剩余7091字）