A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit settlement deviation control method
The invention discloses a foundation pit settlement deviation control method and relates to the field of pile foundation construction. The method comprises the following steps of A, arranging a support pile group outside a pre-excavated foundation pit, grouting the support piles to be below transverse grouting holes, and enabling the support piles to be heavy in bottom and light in head after grouting, wherein the depth of the support pile group is greater than the excavation depth of the pre-excavated foundation pit, and the transverse grouting holes are formed in the support piles; B, arranging a guide limit which surrounds and is attached to the support pile group or a guide limit which is attached to each support pile outside the support pile group; C, excavating the pre-excavated foundation pit; D, drilling holes outside the support pile group through the transverse grouting holes, and obtaining transverse grouting channels, wherein the depth of the transverse grouting channels is at least 3 m; and E, inserting slurry guide pipes into the transverse grouting holes, and then grouting the transverse grouting channels through the slurry guide pipes through a pressure grouting method to form a supporting body. The method has the beneficial effects that after the stress of the support pile group is changed, the support pile group is subjected to force balance again, so that the stability of the support pile group during settlement is ensured.
一种控制基坑沉降偏离方法，涉及桩基施工领域，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，支护桩上设置有横向灌浆孔，对支护桩内注浆至横向灌浆孔下，注浆后使得支护桩底重头轻；步骤B：于支护桩组外设置环绕并贴靠支护桩组的导向限位或贴靠在每个支护桩上的导向限位；步骤C：对预挖基坑进行开挖；步骤D：通过横向灌浆孔向支护桩组外打孔，得到横向注浆通道，横向注浆通道深度至少3m；步骤E：在横向灌浆孔内插入导浆管，然后通过压力注浆法通过导浆管向横向注浆通道进行注浆形成支撑体。本发明的有益效果是：在支护桩组受力发生改变后对支护桩组重新进行力平衡，保证支护桩组沉降时的稳定。
Foundation pit settlement deviation control method
The invention discloses a foundation pit settlement deviation control method and relates to the field of pile foundation construction. The method comprises the following steps of A, arranging a support pile group outside a pre-excavated foundation pit, grouting the support piles to be below transverse grouting holes, and enabling the support piles to be heavy in bottom and light in head after grouting, wherein the depth of the support pile group is greater than the excavation depth of the pre-excavated foundation pit, and the transverse grouting holes are formed in the support piles; B, arranging a guide limit which surrounds and is attached to the support pile group or a guide limit which is attached to each support pile outside the support pile group; C, excavating the pre-excavated foundation pit; D, drilling holes outside the support pile group through the transverse grouting holes, and obtaining transverse grouting channels, wherein the depth of the transverse grouting channels is at least 3 m; and E, inserting slurry guide pipes into the transverse grouting holes, and then grouting the transverse grouting channels through the slurry guide pipes through a pressure grouting method to form a supporting body. The method has the beneficial effects that after the stress of the support pile group is changed, the support pile group is subjected to force balance again, so that the stability of the support pile group during settlement is ensured.
一种控制基坑沉降偏离方法，涉及桩基施工领域，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，支护桩上设置有横向灌浆孔，对支护桩内注浆至横向灌浆孔下，注浆后使得支护桩底重头轻；步骤B：于支护桩组外设置环绕并贴靠支护桩组的导向限位或贴靠在每个支护桩上的导向限位；步骤C：对预挖基坑进行开挖；步骤D：通过横向灌浆孔向支护桩组外打孔，得到横向注浆通道，横向注浆通道深度至少3m；步骤E：在横向灌浆孔内插入导浆管，然后通过压力注浆法通过导浆管向横向注浆通道进行注浆形成支撑体。本发明的有益效果是：在支护桩组受力发生改变后对支护桩组重新进行力平衡，保证支护桩组沉降时的稳定。
Foundation pit settlement deviation control method
一种控制基坑沉降偏离方法
MENG YUAN (author) / YANG JIANHONG (author) / SHI XIANG (author)
2021-11-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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