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A platform for research: civil engineering, architecture and urbanism
Drilling hole wall protection device suitable for soft soil layer and construction method
The invention belongs to the technical field of building construction, and particularly discloses a drilling hole wall protection device suitable for a soft soil layer and a construction method.The device comprises M single-shaft cement soil mixing piles and M connecting plates; the M single-shaft cement-soil mixing piles are distributed in a circular shape; each connecting plate is arranged between every two adjacent single-shaft cement soil mixing piles and fixedly connected with the single-shaft cement soil mixing piles. According to the drilling hole wall protection device suitable for the soft soil layer, due to the fact that the connecting plates which are much smaller than an existing steel pile casing are arranged between every two adjacent single-shaft cement soil mixing piles one by one, friction force between the connecting plates and all the soil layers is small, the connecting plates can be inserted into or pulled out of the soil body more easily, the construction difficulty is low, and the construction period is shortened. And due to the combined form of the connecting plate and the single-shaft cement soil mixing pile, the cost is low. And compared with an all-casing construction process commonly used for a soft soil layer, step-by-step construction can be achieved, and the hole forming construction efficiency of a drilling machine is improved.
本发明属于建筑施工技术领域，具体公开了一种适用于软弱土层的钻孔孔壁保护装置及施工方法，其中装置包括M个单轴水泥土搅拌桩和M块连接板；M个单轴水泥土搅拌桩呈圆形分布；每块连接板设置于相邻两个单轴水泥土搅拌桩之间，并与单轴水泥土搅拌桩固定连接。本发明的适用于软弱土层的钻孔孔壁保护装置，由于是在相邻两个单轴水泥土搅拌桩之间逐一设置的相对现有钢护筒小很多的连接板，因此，连接板与各土层间的摩擦力较小，更易插入至土体中或者从土体中拔出，施工难度低，且由于使用的连接板与单轴水泥土搅拌桩结合的形式，其成本较低。且与常用于软弱土层的全套管施工工艺相比，可分步施工，提高钻机成孔施工效率。
Drilling hole wall protection device suitable for soft soil layer and construction method
The invention belongs to the technical field of building construction, and particularly discloses a drilling hole wall protection device suitable for a soft soil layer and a construction method.The device comprises M single-shaft cement soil mixing piles and M connecting plates; the M single-shaft cement-soil mixing piles are distributed in a circular shape; each connecting plate is arranged between every two adjacent single-shaft cement soil mixing piles and fixedly connected with the single-shaft cement soil mixing piles. According to the drilling hole wall protection device suitable for the soft soil layer, due to the fact that the connecting plates which are much smaller than an existing steel pile casing are arranged between every two adjacent single-shaft cement soil mixing piles one by one, friction force between the connecting plates and all the soil layers is small, the connecting plates can be inserted into or pulled out of the soil body more easily, the construction difficulty is low, and the construction period is shortened. And due to the combined form of the connecting plate and the single-shaft cement soil mixing pile, the cost is low. And compared with an all-casing construction process commonly used for a soft soil layer, step-by-step construction can be achieved, and the hole forming construction efficiency of a drilling machine is improved.
本发明属于建筑施工技术领域，具体公开了一种适用于软弱土层的钻孔孔壁保护装置及施工方法，其中装置包括M个单轴水泥土搅拌桩和M块连接板；M个单轴水泥土搅拌桩呈圆形分布；每块连接板设置于相邻两个单轴水泥土搅拌桩之间，并与单轴水泥土搅拌桩固定连接。本发明的适用于软弱土层的钻孔孔壁保护装置，由于是在相邻两个单轴水泥土搅拌桩之间逐一设置的相对现有钢护筒小很多的连接板，因此，连接板与各土层间的摩擦力较小，更易插入至土体中或者从土体中拔出，施工难度低，且由于使用的连接板与单轴水泥土搅拌桩结合的形式，其成本较低。且与常用于软弱土层的全套管施工工艺相比，可分步施工，提高钻机成孔施工效率。
Drilling hole wall protection device suitable for soft soil layer and construction method
适用于软弱土层的钻孔孔壁保护装置及施工方法
XU GAO (author) / YE LIHUA (author) / YUAN BING (author) / DUN DEPENG (author) / CHEN CHU (author) / SHEN HONGLIANG (author) / XU WEI (author) / YAN LUYUAN (author)
2023-10-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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