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A platform for research: civil engineering, architecture and urbanism
Construction method of cast-in-situ bored pile in karst cave area
The invention discloses a construction method for treating a karst cave, and belongs to the field of building construction. The construction method for treating the karst cave comprises a rotary excavating drill bit for treating the karst cave, and further comprises the following steps that a construction site is surveyed, and a steel casing is buried; a common drill bit is carried for drilling and soil taking to the position of the karst cave; soil taken out by a rotary excavator is backfilled; the common drill bit is replaced with the rotary excavating drill bit for treating the karst cave through the rotary excavator, and the rotary excavating drill bit downwards squeezes soil in a pile hole to be dense; a drill rod of the rotary excavator drives the rotary excavating drill bit for treating the karst cave to continuously squeeze the soil in the karst cave from top to bottom of the karst cave; and backfilling is carried out to the top of the karst cave, and the soil in the karst cave is squeezed to be dense again; after the karst cave is treated, a reinforcement cage is put down, and concrete pouring is carried out; and after concrete pouring is finished, a driving and pulling machine is adopted for pulling out the steel casing. According to the construction method for treating the karst cave, the hole rotating procedure is added, the soil of the karst cave is densely filled, and the subsequent drilling and pouring procedures are carried out.
本发明公开了一种处理溶洞的施工方法，属于建筑施工领域，处理溶洞的施工方法包括处理溶洞的旋挖钻头，还包括如下步骤：对施工地点进行勘察，埋设钢护筒；携带普通钻头进行钻进取土至溶洞位置；旋挖机取出的土进行回填；旋挖机将普通钻头更换为处理溶洞的旋挖钻头，旋挖钻头向下挤密桩孔中的土体；将旋挖机的钻杆带动处理溶洞的旋挖钻头由溶洞顶部自上而下不断挤密溶洞内的土体；回填至溶洞顶，再次挤密溶洞内的土体；溶洞处理后，下放钢筋笼并进行混凝土灌注；混凝土灌注完毕后，采用打拔机把钢护筒拔出。本发明公开的一种处理溶洞的施工方法，增加旋孔工序，密实填补溶洞的泥土，保证后续钻孔灌注工序的进行。
Construction method of cast-in-situ bored pile in karst cave area
The invention discloses a construction method for treating a karst cave, and belongs to the field of building construction. The construction method for treating the karst cave comprises a rotary excavating drill bit for treating the karst cave, and further comprises the following steps that a construction site is surveyed, and a steel casing is buried; a common drill bit is carried for drilling and soil taking to the position of the karst cave; soil taken out by a rotary excavator is backfilled; the common drill bit is replaced with the rotary excavating drill bit for treating the karst cave through the rotary excavator, and the rotary excavating drill bit downwards squeezes soil in a pile hole to be dense; a drill rod of the rotary excavator drives the rotary excavating drill bit for treating the karst cave to continuously squeeze the soil in the karst cave from top to bottom of the karst cave; and backfilling is carried out to the top of the karst cave, and the soil in the karst cave is squeezed to be dense again; after the karst cave is treated, a reinforcement cage is put down, and concrete pouring is carried out; and after concrete pouring is finished, a driving and pulling machine is adopted for pulling out the steel casing. According to the construction method for treating the karst cave, the hole rotating procedure is added, the soil of the karst cave is densely filled, and the subsequent drilling and pouring procedures are carried out.
本发明公开了一种处理溶洞的施工方法，属于建筑施工领域，处理溶洞的施工方法包括处理溶洞的旋挖钻头，还包括如下步骤：对施工地点进行勘察，埋设钢护筒；携带普通钻头进行钻进取土至溶洞位置；旋挖机取出的土进行回填；旋挖机将普通钻头更换为处理溶洞的旋挖钻头，旋挖钻头向下挤密桩孔中的土体；将旋挖机的钻杆带动处理溶洞的旋挖钻头由溶洞顶部自上而下不断挤密溶洞内的土体；回填至溶洞顶，再次挤密溶洞内的土体；溶洞处理后，下放钢筋笼并进行混凝土灌注；混凝土灌注完毕后，采用打拔机把钢护筒拔出。本发明公开的一种处理溶洞的施工方法，增加旋孔工序，密实填补溶洞的泥土，保证后续钻孔灌注工序的进行。
Construction method of cast-in-situ bored pile in karst cave area
一种溶洞地区的钻孔灌注桩的施工方法
LIU JIAN (author) / HU PEIQIANG (author) / AO XIAOPING (author) / LIU ZHOU (author) / YANG LU (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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