Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-burial-depth rock fracture reinforcing anti-seepage grouting process
The invention discloses a large-burial-depth rock fracture reinforcing anti-seepage grouting process. The process comprises the specific steps that 1, a site is leveled; 2, a hole is drilled in a non-grouting section, and a casing is run while the hole is drilled; 3, the diameter of the drill bit is reduced, a hole is drilled in a first grouting section, and the hole is washed; 4, a grouting pipeis lowered, the first grouting section and the non-grouting section are separated through an air bag plug, and then multi-ratio-level grout grouting is conducted on the first grouting section throughgrouting equipment; 5, drilling and hole washing are conducted on a first section and a second section after the first section is grouted for 5-7 days; 6, a grouting pipe is lowered, the first grouting section and the second grouting section are separated through an air bag plug, and then multi-ratio-level grout grouting is conducted on the second grouting section through the grouting equipment; 7, the step 5 and the step 6 are repeated to carry out the next section of grouting after the second section of grouting is finished for 5-7 days, and the steps are repeated until the grouting of all grouting hole sections is finished; and 8, the holes are sealed. According to the large-burial-depth rock fracture reinforcing anti-seepage grouting process, by changing the diameter of the drill bit and reducing the diameter of a hole section in a grouting area, the casing stably stays in the non-grouting area to protect hole forming completeness, then anti-seepage grouting construction below thebottom of a foundation pit can be completed on the ground, and the project progress is accelerated.
本发明公开了大埋深岩石裂隙加固防渗灌浆工艺，具体步骤包括：1、场地平整；2、非灌浆区段钻孔，边钻孔边下套管；3、减小钻头直径进行第一灌浆段钻孔并洗孔；4、下注浆管，采用气囊塞分隔第一灌浆段与非灌浆段，后通过灌浆设备对第一灌浆段进行多比级浆液灌浆；5、第一段灌浆结束5~7天后进行第一段、第二段钻孔并洗孔；6、下注浆管，采用气囊塞分隔第一灌浆段与第二灌浆段，后通过灌浆设备对第二灌浆段进行多比级浆液灌浆；7、第二段灌浆结束5~7天后，重复步骤5及步骤6进行下一段灌浆，如此往复直至灌浆孔段全部完成灌浆；8、封孔。本发明通过变化钻头直径，减小灌浆区域孔段直径，使套管稳定停留在非灌浆区域保护成孔完整，进而使得基坑底部以下防渗灌浆施工可在地面完成，加快工程进度。
Large-burial-depth rock fracture reinforcing anti-seepage grouting process
The invention discloses a large-burial-depth rock fracture reinforcing anti-seepage grouting process. The process comprises the specific steps that 1, a site is leveled; 2, a hole is drilled in a non-grouting section, and a casing is run while the hole is drilled; 3, the diameter of the drill bit is reduced, a hole is drilled in a first grouting section, and the hole is washed; 4, a grouting pipeis lowered, the first grouting section and the non-grouting section are separated through an air bag plug, and then multi-ratio-level grout grouting is conducted on the first grouting section throughgrouting equipment; 5, drilling and hole washing are conducted on a first section and a second section after the first section is grouted for 5-7 days; 6, a grouting pipe is lowered, the first grouting section and the second grouting section are separated through an air bag plug, and then multi-ratio-level grout grouting is conducted on the second grouting section through the grouting equipment; 7, the step 5 and the step 6 are repeated to carry out the next section of grouting after the second section of grouting is finished for 5-7 days, and the steps are repeated until the grouting of all grouting hole sections is finished; and 8, the holes are sealed. According to the large-burial-depth rock fracture reinforcing anti-seepage grouting process, by changing the diameter of the drill bit and reducing the diameter of a hole section in a grouting area, the casing stably stays in the non-grouting area to protect hole forming completeness, then anti-seepage grouting construction below thebottom of a foundation pit can be completed on the ground, and the project progress is accelerated.
本发明公开了大埋深岩石裂隙加固防渗灌浆工艺，具体步骤包括：1、场地平整；2、非灌浆区段钻孔，边钻孔边下套管；3、减小钻头直径进行第一灌浆段钻孔并洗孔；4、下注浆管，采用气囊塞分隔第一灌浆段与非灌浆段，后通过灌浆设备对第一灌浆段进行多比级浆液灌浆；5、第一段灌浆结束5~7天后进行第一段、第二段钻孔并洗孔；6、下注浆管，采用气囊塞分隔第一灌浆段与第二灌浆段，后通过灌浆设备对第二灌浆段进行多比级浆液灌浆；7、第二段灌浆结束5~7天后，重复步骤5及步骤6进行下一段灌浆，如此往复直至灌浆孔段全部完成灌浆；8、封孔。本发明通过变化钻头直径，减小灌浆区域孔段直径，使套管稳定停留在非灌浆区域保护成孔完整，进而使得基坑底部以下防渗灌浆施工可在地面完成，加快工程进度。
Large-burial-depth rock fracture reinforcing anti-seepage grouting process
大埋深岩石裂隙加固防渗灌浆工艺
LI KAI (Autor:in) / JI HEFEI (Autor:in) / LIU GUANGLEI (Autor:in) / WU SIYU (Autor:in)
08.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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