A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for widening roadbed of concrete road
The invention relates to the field of road construction, and particularly discloses a construction method for widening a concrete road subgrade. The construction method comprises the steps that (1) surface cleaning and digging are conducted, specifically, the surface structure of the widened area is dug and cleaned; (2) a roadbed foundation pit is excavated, specifically, the soil base layer of the widened area is excavated to form the roadbed foundation pit; step 3), performing layered backfilling and compaction: backfilling the bottom of the foundation pit with a first filler, performing compaction to form a lower embankment, backfilling the lower embankment with a second filler, performing compaction to form an upper embankment, backfilling the upper embankment with a third filler, performing compaction to form a lower roadbed, backfilling the lower roadbed with a fourth filler, performing compaction to form an upper roadbed; the first filler is prepared by compounding sandy soil and clay; the second filler is prepared by compounding sandy soil, clay and gravel; the third filler is prepared by compounding sandy soil, clay and an expanding agent; the fourth filler is prepared by compounding sandy soil, clay, reinforcing fibers and cement powder. The method has the advantages of shortening the construction period and reducing noise pollution.
本发明涉及道路施工领域，具体公开了一种混凝土道路路基加宽的施工方法。施工方法包括：步骤1），表面清挖：开挖加宽区域的表面结构并清除；步骤2），开挖路基基坑：开挖加宽区域的土基层形成路基基坑；步骤3），分层回填、压实：在基坑底部回填第一填料，压实，形成下路堤，在下路堤上回填第二填料，压实，形成上路堤，在上路堤上回填第三填料，压实，形成下路床，在下路床上回填第四填料，压实，形成上路床；第一填料包括砂土、黏土的复配；第二填料包括砂土、黏土、碎石的复配；第三填料包括砂土、黏土、膨胀剂的复配；第四填料包括砂土、黏土、补强纤维、水泥粉的复配。本发明具有缩短工期并降低噪音污染的优点。
Construction method for widening roadbed of concrete road
The invention relates to the field of road construction, and particularly discloses a construction method for widening a concrete road subgrade. The construction method comprises the steps that (1) surface cleaning and digging are conducted, specifically, the surface structure of the widened area is dug and cleaned; (2) a roadbed foundation pit is excavated, specifically, the soil base layer of the widened area is excavated to form the roadbed foundation pit; step 3), performing layered backfilling and compaction: backfilling the bottom of the foundation pit with a first filler, performing compaction to form a lower embankment, backfilling the lower embankment with a second filler, performing compaction to form an upper embankment, backfilling the upper embankment with a third filler, performing compaction to form a lower roadbed, backfilling the lower roadbed with a fourth filler, performing compaction to form an upper roadbed; the first filler is prepared by compounding sandy soil and clay; the second filler is prepared by compounding sandy soil, clay and gravel; the third filler is prepared by compounding sandy soil, clay and an expanding agent; the fourth filler is prepared by compounding sandy soil, clay, reinforcing fibers and cement powder. The method has the advantages of shortening the construction period and reducing noise pollution.
本发明涉及道路施工领域，具体公开了一种混凝土道路路基加宽的施工方法。施工方法包括：步骤1），表面清挖：开挖加宽区域的表面结构并清除；步骤2），开挖路基基坑：开挖加宽区域的土基层形成路基基坑；步骤3），分层回填、压实：在基坑底部回填第一填料，压实，形成下路堤，在下路堤上回填第二填料，压实，形成上路堤，在上路堤上回填第三填料，压实，形成下路床，在下路床上回填第四填料，压实，形成上路床；第一填料包括砂土、黏土的复配；第二填料包括砂土、黏土、碎石的复配；第三填料包括砂土、黏土、膨胀剂的复配；第四填料包括砂土、黏土、补强纤维、水泥粉的复配。本发明具有缩短工期并降低噪音污染的优点。
Construction method for widening roadbed of concrete road
混凝土道路路基加宽的施工方法
ZHOU JIANGSHUN (author) / LUO QIUQIN (author) / CAI YI (author) / JIANG YI (author) / ZHOU LIUHUA (author) / CHEN GUOFENG (author)
2023-05-30
Patent
Electronic Resource
Chinese
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