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Grouting, lifting and reinforcing method for sand and gravel foundation building
The invention relates to the technical field of building foundation reinforcement and deviation rectification, and provides a grouting lifting reinforcement method for a sandy gravel foundation building, which comprises the following steps: dividing a building raft foundation into a plurality of grouting lifting areas, and arranging a plurality of grouting reinforcement hole sites corresponding to the grouting lifting areas on the outer side of the building raft foundation; according to the grouting reinforcement hole sites, grouting is conducted at the bottom of the sandy gravel stratum through an inclined drilling and grouting integrated retreating type grouting technology to form a plurality of reinforcement bodies corresponding to the grouting lifting areas respectively; according to the grouting reinforcement hole sites, an inclined drilling and grouting integrated retreating type grouting process is adopted to conduct grouting on the upper portions of all the reinforcement bodies to form lifting bodies used for lifting; at least one grouting drill hole is formed in the center position of each grouting lifting area, each grouting drill hole penetrates through the building raft foundation, the reinforcing body and the lifting body and goes deep into the cobblestone underlying stratum, and a reinforcing body for connecting the building raft foundation, the reinforcing body, the lifting body and the cobblestone underlying stratum is formed through grouting of each grouting drill hole.
本发明涉及建筑物基础加固纠偏技术领域,提供一种用于砂卵石地基建筑物的注浆抬升加固方法,包括:将建筑物筏板基础分设为多个注浆抬升区域,在建筑物筏板基础外侧布设多个分别对应各注浆抬升区域的注浆加固孔位点;根据注浆加固孔位点,采用倾斜钻注一体后退式注浆工艺在砂卵石地层的底部注浆形成多个分别对应各注浆抬升区域的加固体;根据注浆加固孔位点,采用倾斜钻注一体后退式注浆工艺在各加固体的上方注浆形成用于抬升的抬升体;在各注浆抬升区域中心位置布置至少一个注浆钻孔,各注浆钻孔贯穿建筑物筏板基础、加固体和抬升体,深入鹅卵石下伏地层,通过各注浆钻孔注浆形成连接建筑物筏板基础、加固体、抬升体和鹅卵石下伏地层的增强体。
Grouting, lifting and reinforcing method for sand and gravel foundation building
The invention relates to the technical field of building foundation reinforcement and deviation rectification, and provides a grouting lifting reinforcement method for a sandy gravel foundation building, which comprises the following steps: dividing a building raft foundation into a plurality of grouting lifting areas, and arranging a plurality of grouting reinforcement hole sites corresponding to the grouting lifting areas on the outer side of the building raft foundation; according to the grouting reinforcement hole sites, grouting is conducted at the bottom of the sandy gravel stratum through an inclined drilling and grouting integrated retreating type grouting technology to form a plurality of reinforcement bodies corresponding to the grouting lifting areas respectively; according to the grouting reinforcement hole sites, an inclined drilling and grouting integrated retreating type grouting process is adopted to conduct grouting on the upper portions of all the reinforcement bodies to form lifting bodies used for lifting; at least one grouting drill hole is formed in the center position of each grouting lifting area, each grouting drill hole penetrates through the building raft foundation, the reinforcing body and the lifting body and goes deep into the cobblestone underlying stratum, and a reinforcing body for connecting the building raft foundation, the reinforcing body, the lifting body and the cobblestone underlying stratum is formed through grouting of each grouting drill hole.
本发明涉及建筑物基础加固纠偏技术领域,提供一种用于砂卵石地基建筑物的注浆抬升加固方法,包括:将建筑物筏板基础分设为多个注浆抬升区域,在建筑物筏板基础外侧布设多个分别对应各注浆抬升区域的注浆加固孔位点;根据注浆加固孔位点,采用倾斜钻注一体后退式注浆工艺在砂卵石地层的底部注浆形成多个分别对应各注浆抬升区域的加固体;根据注浆加固孔位点,采用倾斜钻注一体后退式注浆工艺在各加固体的上方注浆形成用于抬升的抬升体;在各注浆抬升区域中心位置布置至少一个注浆钻孔,各注浆钻孔贯穿建筑物筏板基础、加固体和抬升体,深入鹅卵石下伏地层,通过各注浆钻孔注浆形成连接建筑物筏板基础、加固体、抬升体和鹅卵石下伏地层的增强体。
Grouting, lifting and reinforcing method for sand and gravel foundation building
用于砂卵石地基建筑物的注浆抬升加固方法
CUI TENGYUE (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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