土工基础

›› 2015, Vol. 29 ›› Issue (4): 23-26.

• 工程实录 • 上一篇    下一篇

复杂地质条件下大体积混凝土基础施工技术研究

刘 源1，2，张可能1，刘 创1，肖小玲2   

  1. (1.中南大学地球科学与信息物理学院，长沙 410083；2.桂林矿产地质研究院，广西桂林 541004)
  • 收稿日期:2014-06-03 出版日期:2015-08-20 发布日期:2015-11-06
  • 作者简介:刘源(1966-)，男，高级工程师，博士研究生，研究方向为地质工程。

Construction Techniques of Mass Concrete Foundation in Complex Geological Conditions

LIU Yuan1,2, ZHANG Keneng1, LIU Chuang1, XIAO Xiaoling2   

  1. (1. Department of Geosciences and Environmental Engineering, Central South University, Changsha 410083;
    2. Guilin Research Institute of Geology Mineral Resources, Guilin 541004)
  • Received:2014-06-03 Online:2015-08-20 Published:2015-11-06

摘要： 通过一个防微振基础工程实例，研究了在复杂地质条件下的大体积混凝土基础施工技术。该工程在施工过程中，遇到了溶洞（沟）处理、岩石爆破、基坑支护、降排地下水、大体积混凝土等施工难题。通过对大体积防微振基础在原材料、配合比、施工和养护等方面的研究，运用多种施工技术控制措施,有效地保证了在复杂地质条件下大体积混凝土基础的施工质量。

关键词: 复杂地质条件, 大体积混凝土, 岩溶处理, 岩石爆破, 基坑支护

Abstract: The mass concrete foundation construction techniques in the complex geological conditions are introduced through a case history of the vibration isolation foundation installation. During the construction, the treatment of adverse conditions such as, karst rock cavities and pinnacles; rock blasting; deep excavation support; dewatering and mass concrete pouring; etc. are encountered. The mass construction installation issue in the complex geological conditions is resolved through the proper selection of concrete materials, watercement ratio and the proper curing method.

Key words: Complex Geological Conditions, Mass Concrete, Treatment of Karst Cavities, Rock Blasting, Deep Excavation Support