應用研究 2025年 第卷 第18期
DOI: 10.7672 / sgjs2025180103
富水砂層低凈空地下連續墻施工技術
朱海軍1’2,陳偉1’2’3,李鵬東1’2,王峰1’2
作者簡介：
朱海軍，碩士，教授級高級工程師，E-mail:3499546@qq. com作者單位：
1.中建三局基礎設施建設投資有限公司，湖北武漢 430073; 2.中建三局集團有限公司，湖北武漢 430073; 3.武漢工程大學，湖北武漢 430205基金項目：
?中建三局基礎設施建設投資有限公司科研項目（ CSCEC3BJC-2024-2）摘要：
針對富水砂層及高架橋、高壓線下低凈空地下連續墻施工難題，采用全套低凈空成槽及吊裝設備，圍繞加快分節吊裝和保證槽壁穩定 2 個方面采取技術及管理措施，優化護壁泥漿性能指標，做好工序組織，鋼筋籠整體加工再分節，控制分節對接垂直度，采用碎石回填防止接頭繞流，采取三導管澆筑，并采取物防、技術、人防措施防止碰撞上方高架橋及高壓線，充分保證了富水砂層低凈空地下連續墻施工安全和質量，并有效提升了平均工效。
English：
In view of the construction problems in water-rich sand stratum, low-clearance diaphragm wallunder viaduct and high-tension lines, a full set of low-clearance grooving and hoisting equipment isadopted, and technical and management measures are taken in two aspects: Speeding up section hoistingand ensuring the stability of the trough wall, optimizing the performance indicators of the wall protectionmud, doing a good job in process organization, re-section the steel bar cage as a whole, and controllingthe verticality of the section butt. The use of gravel backfill to prevent joint flow around, the use of three-pipe pouring, and the use of physical defense, technology, civil air defense and other measures toprevent collision with the overhead viaduct and high-voltage lines, fully ensure the safety and quality ofthe construction of low-clearance diaphragm wall in the water-rich sand stratum, and effectively improvethe average efficiency.