- 摘 要
-
胡小波1，牛 磊1,2，付 亮1,2，時樹泉3
(1 天津城市建設學院，天津300384; 2 天津市軟土特性與工程環(huán)境重點實驗室，天津300384; 3 中國中鐵電氣化局一公司，石家莊050010)[摘要] 利用大型沖擊碾壓機械進行現(xiàn)場壓實試驗，根據(jù)不同碾壓遍數(shù)下的路基沉降量、于密度以及彎沉值的測試結(jié)果，得出以上三個路基評價控制標準與碾壓遍數(shù)之間的關系，進而得出最佳碾壓遍數(shù)。此外，根據(jù)拆房土不同虛鋪厚度下評價控制標準的對比，同時進行了沖擊補強試驗測試，得出拆房土處理路基的最佳虛鋪厚度，進一步驗證了拆房土處理軟弱不良路基的適用性。
[關鍵詞] 軟弱不良路基；拆房土；沖擊碾壓；沖擊補強Experimental study on open room soil and impaction compaction method for poor weak subgrade treatment
Hu Xiaobo1, Niu Leil1,2, Fu Liang1,2, Shi Shuquan1
(1Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin 300384, China; 2 Department of Civil Engineenng, Tianjin Institute of Urban Construction, Tianjin 300384, China; 3 First Engineering Co., Ltd. of China Railway Electrification Bureau Group, Shijiazhuang 050010, China)Abstract: Based on field compaction test, according to the different compaction quantities of subgrade settlement, the dry density and testing results of deflection value evaluation, it obtains three subgrade compaction quantities and control standards, and the relationship between optimal compaction number of times. In addition, according to the contrast of the open room soil under different pseudo thickness control standard of evaluation, simultaneously has carried on the impact reinforcement experiment test, obtains the open room soil for subgrade treatment best pseudo thickness, further validated open room with poor weak subgrade soil the serviceability. provides reference for the similar projects in future.
Keywords: poor weak subgrade; open room soil; impact compaction; impact reinforce
