Vertical hole induced surface settlement of remolded clay

• Main Authors: Chang Hua-Yu, 張化宇
• Other Authors: Liao Hong-Jiun
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/02981491249412583673

碩士 === 國立臺灣科技大學 === 營建工程技術學系 === 82 === A series of Laboratory model test was performed to study the vertical hole induced surface settlement of the remolded clay. In addition to the vertical settlement,the soil near the surface tended to be squeezed laterally toward the hole. Therefore,the surface settlement was most significant around the hole and decreased parabolically as the distance increased. No obvious settlement was found at the distance of 8∼9D (D is the diameter of the hole)from the hole. Most of the surface settlement occured shortly after the hole was created and magnitude of settlement linearly with the diameter of the hole. The hole would still exist after the settlement was completed. However,if the hole could be refilled with concrete after most of the settlement had occured,further settlement within the area of 4.5D from the hole would be terminated and the loss of soil strength due to stress relief could be reduced also.