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A platform for research: civil engineering, architecture and urbanism
Method for foundation replacement construction of peat soil soft foundation box culvert
The invention provides a method for foundation replacement construction of a peat soil soft foundation box culvert. The method comprises the following steps of, measuring and setting out, and confirming an excavation area; carrying out excavation for the first time from the first side of the box culvert foundation along the transverse direction of the roadbed and the longitudinal centerline of thebox culvert, and laying geotextile isolation layers along the excavation slope surface from the foundation base after the excavation reaches the specified elevation, and then carrying out stone replacement in layers; carrying out excavation for the second time on two sides adjacent to the first side of the box culvert foundation along the longitudinal direction of the roadbed and the transverse direction of the box culvert until the excavation reaches the design depth elevation and the preset width, and laying geotextile isolation layers on the two sides of the slope of the excavation area, and then carrying out stone replacement in layers; and carrying out backfilling in layers and tamping in layers of the excavation area, carrying out replacement until reaching the designed top elevation, and carrying out tamping and leveling until reaching the construction conditions of a box culvert structure. According to the method, the field construction progress of the peat soil soft foundation can be accelerated, the geotextile isolation layers are added, and the peat soil layer is isolated from stone replacement part, thus avoiding the mixed impact upon stability of the box culvert foundation.
本发明提供了一种用于泥炭土软基箱涵基础换填施工的方法，包括：测量放样，确认开挖区域；沿路基横向、箱涵纵向中心线从箱涵基础的第一侧进行一次开挖，开挖至指定标高后，从基底沿着开挖坡面先铺设土工布隔离层后逐层进行块石换填；沿路基纵向、箱涵横向的方向向与箱涵基础第一侧相邻的两侧进行二次开挖，直至挖掘至设计深度标高及预设宽度，在开挖区域的边坡两侧铺设土工布隔离层后逐层进行块石换填；对开挖区域进行分层回填、分层夯实，换填至设计顶标高，再次夯实、找平，直至达到箱涵结构的施工条件。本发明可加快泥炭土软土地基的现场施工进度，并且增加土工布隔离层，将泥炭土层与换填块石部分隔离，避免混合影响箱涵基础的稳定性。
Method for foundation replacement construction of peat soil soft foundation box culvert
The invention provides a method for foundation replacement construction of a peat soil soft foundation box culvert. The method comprises the following steps of, measuring and setting out, and confirming an excavation area; carrying out excavation for the first time from the first side of the box culvert foundation along the transverse direction of the roadbed and the longitudinal centerline of thebox culvert, and laying geotextile isolation layers along the excavation slope surface from the foundation base after the excavation reaches the specified elevation, and then carrying out stone replacement in layers; carrying out excavation for the second time on two sides adjacent to the first side of the box culvert foundation along the longitudinal direction of the roadbed and the transverse direction of the box culvert until the excavation reaches the design depth elevation and the preset width, and laying geotextile isolation layers on the two sides of the slope of the excavation area, and then carrying out stone replacement in layers; and carrying out backfilling in layers and tamping in layers of the excavation area, carrying out replacement until reaching the designed top elevation, and carrying out tamping and leveling until reaching the construction conditions of a box culvert structure. According to the method, the field construction progress of the peat soil soft foundation can be accelerated, the geotextile isolation layers are added, and the peat soil layer is isolated from stone replacement part, thus avoiding the mixed impact upon stability of the box culvert foundation.
本发明提供了一种用于泥炭土软基箱涵基础换填施工的方法，包括：测量放样，确认开挖区域；沿路基横向、箱涵纵向中心线从箱涵基础的第一侧进行一次开挖，开挖至指定标高后，从基底沿着开挖坡面先铺设土工布隔离层后逐层进行块石换填；沿路基纵向、箱涵横向的方向向与箱涵基础第一侧相邻的两侧进行二次开挖，直至挖掘至设计深度标高及预设宽度，在开挖区域的边坡两侧铺设土工布隔离层后逐层进行块石换填；对开挖区域进行分层回填、分层夯实，换填至设计顶标高，再次夯实、找平，直至达到箱涵结构的施工条件。本发明可加快泥炭土软土地基的现场施工进度，并且增加土工布隔离层，将泥炭土层与换填块石部分隔离，避免混合影响箱涵基础的稳定性。
Method for foundation replacement construction of peat soil soft foundation box culvert
一种用于泥炭土软基箱涵基础换填施工的方法
DING MINGHE (author) / ZHANG QI (author) / WANG YANG (author) / ZHANG YANG (author) / ZHU LINGYUN (author)
2020-07-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E03F
SEWERS
,
Abwasserkanäle
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