A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Grouting type foundation pit settlement deviation control method
The invention discloses a grouting type foundation pit settlement deviation control method and relates to the field of pile foundation construction. The method comprises the steps that A, a supporting pile set is arranged outside a pre-excavated foundation pit, wherein the depth of the supporting pile set is larger than the excavation depth of the pre-excavated foundation pit, and a lateral grouting opening facing the outer side of the foundation pit is formed in a supporting pile; B, drilling is conducted in the inclined lower direction through the lateral grouting opening, and an inclined grouting channel is obtained; C, a slurry guide pipe is inserted into the inclined grouting channel, and then grouting is conducted on the inclined grouting channel through the slurry guide pipe by means of a pressure grouting method to form a supporting body; D, grouting is conducted in supporting piles, so that the interiors of the supporting piles and the supporting body are integrated; and E, the pre-excavated foundation pit is excavated, and after excavation is completed, waterproof treatment is conducted on the supporting pile set on the inner side of the supporting pile set. The method has the beneficial effects that the overall stress area and range of the supporting pile set are increased, the deformation amount of the supporting pile set in foundation pit construction is reduced, piping caused by deformation of the supporting pile set is effectively prevented, and the overall construction efficiency is improved.
一种注浆式控制基坑沉降偏离方法，涉及桩基施工领域，包括步骤A：于预挖基坑外设置支护桩组，支护桩组的深度大于预挖基坑开挖深度，支护桩上设置有面向基坑外侧的侧向灌浆开口；步骤B：通过侧向灌浆开口向斜下方打孔，得到斜向注浆通道；步骤C：在斜向注浆通道内插入导浆管，然后通过压力注浆法通过导浆管向斜向注浆通道进行注浆形成支撑体；步骤D：对支护桩内进行灌浆，使得支护桩内部与支撑体一体；步骤E对预挖基坑进行开挖，开挖结束后在支护桩组内侧对支护桩组进行防水处理。本发明的有益效果是：提高了支护桩组整体受力面积和范围，降低了基坑施工中支护桩组变形量，有效防止支护桩组变形造成的管涌，提高了整体施工效率。
Grouting type foundation pit settlement deviation control method
The invention discloses a grouting type foundation pit settlement deviation control method and relates to the field of pile foundation construction. The method comprises the steps that A, a supporting pile set is arranged outside a pre-excavated foundation pit, wherein the depth of the supporting pile set is larger than the excavation depth of the pre-excavated foundation pit, and a lateral grouting opening facing the outer side of the foundation pit is formed in a supporting pile; B, drilling is conducted in the inclined lower direction through the lateral grouting opening, and an inclined grouting channel is obtained; C, a slurry guide pipe is inserted into the inclined grouting channel, and then grouting is conducted on the inclined grouting channel through the slurry guide pipe by means of a pressure grouting method to form a supporting body; D, grouting is conducted in supporting piles, so that the interiors of the supporting piles and the supporting body are integrated; and E, the pre-excavated foundation pit is excavated, and after excavation is completed, waterproof treatment is conducted on the supporting pile set on the inner side of the supporting pile set. The method has the beneficial effects that the overall stress area and range of the supporting pile set are increased, the deformation amount of the supporting pile set in foundation pit construction is reduced, piping caused by deformation of the supporting pile set is effectively prevented, and the overall construction efficiency is improved.
一种注浆式控制基坑沉降偏离方法，涉及桩基施工领域，包括步骤A：于预挖基坑外设置支护桩组，支护桩组的深度大于预挖基坑开挖深度，支护桩上设置有面向基坑外侧的侧向灌浆开口；步骤B：通过侧向灌浆开口向斜下方打孔，得到斜向注浆通道；步骤C：在斜向注浆通道内插入导浆管，然后通过压力注浆法通过导浆管向斜向注浆通道进行注浆形成支撑体；步骤D：对支护桩内进行灌浆，使得支护桩内部与支撑体一体；步骤E对预挖基坑进行开挖，开挖结束后在支护桩组内侧对支护桩组进行防水处理。本发明的有益效果是：提高了支护桩组整体受力面积和范围，降低了基坑施工中支护桩组变形量，有效防止支护桩组变形造成的管涌，提高了整体施工效率。
Grouting type foundation pit settlement deviation control method
一种注浆式控制基坑沉降偏离方法
YANG JIANHONG (author) / MENG YUAN (author) / TANG JING (author)
2021-11-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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