Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for downward insertion of long steel casing in deep and thick rock-filled sludge stratum rotary excavating pile construction
The invention relates to the technical field of long steel casing construction, and discloses a construction method for downward insertion a long steel casing in deep and thick rock-filled sludge stratum rotary excavating pile construction. The construction method comprises the following specific steps that (1), a site is leveled, surveying and setting out are carried out, and a pile position is determined; (2), a drilling machine excavates downwards, impact hammers impact a rock-filled layer, and a pipe twisting machine clamps a long steel casing to be inserted downwards; (3), the rotary drilling machine drills holes in the sludge layer in a rotary drilling mode, and rotary drilling pile holes are formed; (4), a punching grab bucket grabs sediment in the rotary drilling pile holes, and sundries at the hole opening are removed; (5), a reinforcement cage and a pouring guide pipe are put down, and concrete is poured into the rotary drilling pile holes; and (6), the pouring guide pipe and the long steel casing are pulled out. The impact hammers with different diameters are adopted for impacting and breaking through the rock-filled layer which is difficult to pass through, the pipe twisting machine clamps the long steel casing for downward insertion, the downward insertion accuracy of the long steel casing is guaranteed, and the problem that accurate downward insertion of the long steel casing is difficult to achieve is solved.
本发明涉及长钢护筒施工的技术领域，公开了深厚填石淤泥地层旋挖桩施工下插长钢护筒的施工方法，具体步骤如下：(1)、场地平整，测量放线，确定桩位；(2)、钻机下挖，冲锤冲击填石层，搓管机夹持长钢护筒下插；(3)、旋挖机在淤泥层旋挖钻孔，形成旋挖桩孔；(4)、冲抓斗抓取旋挖桩孔内的沉渣，清除孔口处的杂物；(5)、下放钢筋笼以及灌注导管，往旋挖桩孔内灌注混凝土；(6)、拔出灌注导管以及长钢护筒；采用直径不同的冲锤冲击，突破难以穿越的填石层，搓管机夹持长钢护筒下插，保证长钢护筒的下插精准度，解决了长钢护筒难以实现精准下插的问题。
Construction method for downward insertion of long steel casing in deep and thick rock-filled sludge stratum rotary excavating pile construction
The invention relates to the technical field of long steel casing construction, and discloses a construction method for downward insertion a long steel casing in deep and thick rock-filled sludge stratum rotary excavating pile construction. The construction method comprises the following specific steps that (1), a site is leveled, surveying and setting out are carried out, and a pile position is determined; (2), a drilling machine excavates downwards, impact hammers impact a rock-filled layer, and a pipe twisting machine clamps a long steel casing to be inserted downwards; (3), the rotary drilling machine drills holes in the sludge layer in a rotary drilling mode, and rotary drilling pile holes are formed; (4), a punching grab bucket grabs sediment in the rotary drilling pile holes, and sundries at the hole opening are removed; (5), a reinforcement cage and a pouring guide pipe are put down, and concrete is poured into the rotary drilling pile holes; and (6), the pouring guide pipe and the long steel casing are pulled out. The impact hammers with different diameters are adopted for impacting and breaking through the rock-filled layer which is difficult to pass through, the pipe twisting machine clamps the long steel casing for downward insertion, the downward insertion accuracy of the long steel casing is guaranteed, and the problem that accurate downward insertion of the long steel casing is difficult to achieve is solved.
本发明涉及长钢护筒施工的技术领域，公开了深厚填石淤泥地层旋挖桩施工下插长钢护筒的施工方法，具体步骤如下：(1)、场地平整，测量放线，确定桩位；(2)、钻机下挖，冲锤冲击填石层，搓管机夹持长钢护筒下插；(3)、旋挖机在淤泥层旋挖钻孔，形成旋挖桩孔；(4)、冲抓斗抓取旋挖桩孔内的沉渣，清除孔口处的杂物；(5)、下放钢筋笼以及灌注导管，往旋挖桩孔内灌注混凝土；(6)、拔出灌注导管以及长钢护筒；采用直径不同的冲锤冲击，突破难以穿越的填石层，搓管机夹持长钢护筒下插，保证长钢护筒的下插精准度，解决了长钢护筒难以实现精准下插的问题。
Construction method for downward insertion of long steel casing in deep and thick rock-filled sludge stratum rotary excavating pile construction
深厚填石淤泥地层旋挖桩施工下插长钢护筒的施工方法
GUO QIUPING (Autor:in) / JI JIANMIN (Autor:in) / ZHENG ANGDONG (Autor:in) / LU SHENGGUO (Autor:in) / RONG XUEFEN (Autor:in)
19.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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