Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Clay layered water stopping method for underground water monitoring well
The invention discloses an underground water monitoring well clay layering water stopping method which comprises the following steps: S1, firstly, a large-diameter drilling tool of a drilling machine is adopted to drill through a water stopping target layer from top to bottom to form a large-diameter drill hole; s2, a drop hammer is installed on a drilling machine, then clay is poured into the large-diameter drill hole, the drop hammer is lifted through the drilling machine to hammer and tamp the clay from top to bottom, a clay layer is formed, and the drop hammer is detached; s3, the casing pipe is centered and inserted into the clay layer, then a medium-caliber drilling tool of a drilling machine is adopted for directly pushing the casing pipe into the casing pipe, the clay layer is drilled through, and a clay core is taken out; s4, according to the on-site mudstone distribution condition, a drilling machine is adopted to continue drilling downwards in the center of the large-diameter drill hole to the designed hole depth, and then a well pipe is put in; and S5, clay balls are placed between the inner wall of the casing and the outer wall of the well casing, the stacking height of the clay balls is larger than that of the clay layer, and finally the casing is pulled out, and the method has the advantages of being good in water stopping effect, compact in water stopping layer structure, simple in operation step and the like.
本发明公开了一种地下水监测井粘土分层止水方法，包括以下步骤：步骤S1、先采用钻机的大口径钻具从上往下钻穿止水目的层，形成大口径钻孔；步骤S2、在钻机上安装吊锤，然后在大口径钻孔内灌入粘土，并通过钻机提拉吊锤从上往下锤击夯实粘土，形成粘土层，卸下吊锤；步骤S3、将套管居中插入粘土层，然后采用钻机的中口径钻具直推进入套管，钻穿粘土层并取出粘土芯；步骤S4、根据现场泥岩分布情况，采用钻机继续在大口径钻孔内居中向下钻探至设计孔深后，下入井管；步骤S5、在套管内壁与井管外壁之间放入粘土球，且粘土球堆叠的高度高于粘土层，最后拔出套管，具有止水效果好、止水层结构紧密、操作步骤简单等优点。
Clay layered water stopping method for underground water monitoring well
The invention discloses an underground water monitoring well clay layering water stopping method which comprises the following steps: S1, firstly, a large-diameter drilling tool of a drilling machine is adopted to drill through a water stopping target layer from top to bottom to form a large-diameter drill hole; s2, a drop hammer is installed on a drilling machine, then clay is poured into the large-diameter drill hole, the drop hammer is lifted through the drilling machine to hammer and tamp the clay from top to bottom, a clay layer is formed, and the drop hammer is detached; s3, the casing pipe is centered and inserted into the clay layer, then a medium-caliber drilling tool of a drilling machine is adopted for directly pushing the casing pipe into the casing pipe, the clay layer is drilled through, and a clay core is taken out; s4, according to the on-site mudstone distribution condition, a drilling machine is adopted to continue drilling downwards in the center of the large-diameter drill hole to the designed hole depth, and then a well pipe is put in; and S5, clay balls are placed between the inner wall of the casing and the outer wall of the well casing, the stacking height of the clay balls is larger than that of the clay layer, and finally the casing is pulled out, and the method has the advantages of being good in water stopping effect, compact in water stopping layer structure, simple in operation step and the like.
本发明公开了一种地下水监测井粘土分层止水方法，包括以下步骤：步骤S1、先采用钻机的大口径钻具从上往下钻穿止水目的层，形成大口径钻孔；步骤S2、在钻机上安装吊锤，然后在大口径钻孔内灌入粘土，并通过钻机提拉吊锤从上往下锤击夯实粘土，形成粘土层，卸下吊锤；步骤S3、将套管居中插入粘土层，然后采用钻机的中口径钻具直推进入套管，钻穿粘土层并取出粘土芯；步骤S4、根据现场泥岩分布情况，采用钻机继续在大口径钻孔内居中向下钻探至设计孔深后，下入井管；步骤S5、在套管内壁与井管外壁之间放入粘土球，且粘土球堆叠的高度高于粘土层，最后拔出套管，具有止水效果好、止水层结构紧密、操作步骤简单等优点。
Clay layered water stopping method for underground water monitoring well
一种地下水监测井粘土分层止水方法
REN HONGLING (Autor:in) / LIU YIFENG (Autor:in) / ZHANG ZHIHUA (Autor:in) / ZHANG JIAN (Autor:in) / DENG XIAOFENG (Autor:in)
06.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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