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A platform for research: civil engineering, architecture and urbanism
Preloading method for soft soil roadbed and flexible roadbed
The invention discloses a preloading method for a soft soil roadbed and a flexible roadbed. The preloading method comprises the following steps: compacting an embankment and determining a preloading material; the pre-pressing length and the stacking height of each roadbed layer material are determined; the embankment is divided into a first pre-pressing area and a second pre-pressing area, the first pre-pressing area is pre-pressed firstly, and then a second batch of pre-pressing is conducted; after prepressing is finished, earthwork increased due to subgrade settlement is supplemented, and rolling compaction is carried out; paving roadbed materials on the pre-pressed embankment in sequence according to the designed thickness and paving positions; and the pre-pressing construction is repeated, and heaped pre-pressing of the next section of the embankment is carried out. According to the method, the roadbed layer materials (filling soil, gravel cushion materials and the like) are used for preloading, paving can be carried out after each section of preloading is completed, the two-batch preloading length of the preloading materials meets the paving requirement for paving the section of the embankment, the carrying capacity is reduced, and the construction efficiency is improved; a roadbed layer material is used for replacing traditional earthwork prepressing, the earthwork consumption is reduced, the influence on the surrounding environment is reduced, and the engineering investment is reduced.
本发明公开了一种用于软土路基和柔性路基的堆载预压方法，包括：将路堤压实并确定预压材料；确定每种路基层材料的预压长度和堆载高度；将路堤分为第一预压区和第二预压区，先对第一预压区预压，然后进行第二批预压；预压结束后补充因路基沉降而增加的土方，碾压压实；将路基层材料按设计厚度和铺筑位置依次铺筑在预压完成的路堤上；重复预压施工，进行下一段路堤的堆载预压。本发明利用路基层材料（填土、砂砾垫层材料等）堆载预压，每完成一段预压即可进行铺筑，预压材料的两批次堆载预压长度满足用于铺筑该段路堤的铺筑需求，减少运载量，提高施工效率；用路基层材料代替传统的土方预压，减少土方用量，降低对周围环境的影响，减少工程投资。
Preloading method for soft soil roadbed and flexible roadbed
The invention discloses a preloading method for a soft soil roadbed and a flexible roadbed. The preloading method comprises the following steps: compacting an embankment and determining a preloading material; the pre-pressing length and the stacking height of each roadbed layer material are determined; the embankment is divided into a first pre-pressing area and a second pre-pressing area, the first pre-pressing area is pre-pressed firstly, and then a second batch of pre-pressing is conducted; after prepressing is finished, earthwork increased due to subgrade settlement is supplemented, and rolling compaction is carried out; paving roadbed materials on the pre-pressed embankment in sequence according to the designed thickness and paving positions; and the pre-pressing construction is repeated, and heaped pre-pressing of the next section of the embankment is carried out. According to the method, the roadbed layer materials (filling soil, gravel cushion materials and the like) are used for preloading, paving can be carried out after each section of preloading is completed, the two-batch preloading length of the preloading materials meets the paving requirement for paving the section of the embankment, the carrying capacity is reduced, and the construction efficiency is improved; a roadbed layer material is used for replacing traditional earthwork prepressing, the earthwork consumption is reduced, the influence on the surrounding environment is reduced, and the engineering investment is reduced.
本发明公开了一种用于软土路基和柔性路基的堆载预压方法，包括：将路堤压实并确定预压材料；确定每种路基层材料的预压长度和堆载高度；将路堤分为第一预压区和第二预压区，先对第一预压区预压，然后进行第二批预压；预压结束后补充因路基沉降而增加的土方，碾压压实；将路基层材料按设计厚度和铺筑位置依次铺筑在预压完成的路堤上；重复预压施工，进行下一段路堤的堆载预压。本发明利用路基层材料（填土、砂砾垫层材料等）堆载预压，每完成一段预压即可进行铺筑，预压材料的两批次堆载预压长度满足用于铺筑该段路堤的铺筑需求，减少运载量，提高施工效率；用路基层材料代替传统的土方预压，减少土方用量，降低对周围环境的影响，减少工程投资。
Preloading method for soft soil roadbed and flexible roadbed
一种软土路基和柔性路基的堆载预压方法
DING NING (author) / DENG XIANG (author) / LIU QI (author) / YANG YANG (author) / LI LEI (author) / CHEN FEI (author) / ZHANG PENGJU (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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