论文部分内容阅读
(一) 前言通常用振搗法来提高松散粗、中砂的密度是防止砂基液化的有效方法之一,但是此法用于粉砂地基的加固尚无成功經驗可循。本文配合某工程地基处理的需要,采用插入式混凝土振搗器在松散的粉砂地基上进行了工地試驗。試驗目的是:(1)論証粉砂地基用振搗法加固的可能性;(2)探求合理的振搗方法。在試驗中,我們比較了“振搗不填砂”和“振搗填砂”两种方法。試驗表明,用振搗填砂法对加固粉砂地基有着显著的效果。
(I) Preface It is usually an effective method to prevent the sand-based liquefaction by increasing the density of loose coarse and medium sand with the vibrator method. However, there is no successful experience in this method for the reinforcement of silt foundations. In order to meet the needs of the foundation treatment of a certain project, this paper conducts a site test on a loose silt foundation using a plug-in concrete vibrator. The purpose of the test is: (1) to demonstrate the feasibility of reinforcing silt foundation with a vibrating raft method; (2) to search for a reasonable vibrating method. In the experiment, we compared the two methods of “vibration without sand” and “vibration with sand”. The test shows that the vibratory sand filling method has a significant effect on reinforcing silt foundation.