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A platform for research: civil engineering, architecture and urbanism
Reinforcing and lifting method for foundation containing bedrock fissures under existing building
The invention discloses a method for reinforcing and lifting a foundation containing bedrock fissures under an existing building, a basement is arranged at the bottom of a main body structure, a raft foundation is arranged under the basement, pebble beds are arranged under the raft foundation and an underground garage, a strongly-weathered argillaceous silty sand rock layer is arranged under the pebble beds, and a foundation is arranged under the strongly-weathered argillaceous silty sand rock layer. A large number of step-by-step uneven fractures exist in the strongly-weathered argillaceous silt rock stratum. Through the arrangement of the outdoor grouting holes, the raft plate outer grouting holes and the raft plate inner grouting holes, the effective filling of the crack development position and the formation of a subsequent reinforcing layer, a restraint wall and a reinforcing base layer can be guaranteed; through the arrangement of the reinforcing layer, the restraint wall and the reinforcing base layer, it is guaranteed that grout is not leaked when grouting lifting is conducted in the fissure area, the construction progress can be effectively improved, and the construction effect is guaranteed; and through interactive verification of the three-dimensional model and field detection, the grouting process can be accurately controlled, the bottom binding force and the vertical binding force needed during grouting are guaranteed, the construction cost is further saved, and the construction quality is guaranteed.
本发明公开了一种既有建筑下含基岩裂隙的地基加固抬升方法，主体结构底部设置有地下室，地下室下方设置有筏板基础，筏板基础下方和地下车库下方同为卵石层，卵石层下方为强风化泥质粉砂岩层，强风化泥质粉砂岩层内存在大量分步不均匀的裂隙。本发明通过室外注浆孔、筏板外注浆孔和筏板内注浆孔的设置，利于保证裂隙发育处的有效填充和后续补强层、约束墙和加固底座层的形成；通过补强层、约束墙和加固底座层的设置，利于保证裂隙地区注浆抬升时，浆液不外漏，可有效的提供施工进度保证施工效果；通过三维模型和现场检测的交互验证，利于精确化控制注浆过程，保证注浆时所需底部和竖向束缚力，进一步节省施工成本保证施工质量。
Reinforcing and lifting method for foundation containing bedrock fissures under existing building
The invention discloses a method for reinforcing and lifting a foundation containing bedrock fissures under an existing building, a basement is arranged at the bottom of a main body structure, a raft foundation is arranged under the basement, pebble beds are arranged under the raft foundation and an underground garage, a strongly-weathered argillaceous silty sand rock layer is arranged under the pebble beds, and a foundation is arranged under the strongly-weathered argillaceous silty sand rock layer. A large number of step-by-step uneven fractures exist in the strongly-weathered argillaceous silt rock stratum. Through the arrangement of the outdoor grouting holes, the raft plate outer grouting holes and the raft plate inner grouting holes, the effective filling of the crack development position and the formation of a subsequent reinforcing layer, a restraint wall and a reinforcing base layer can be guaranteed; through the arrangement of the reinforcing layer, the restraint wall and the reinforcing base layer, it is guaranteed that grout is not leaked when grouting lifting is conducted in the fissure area, the construction progress can be effectively improved, and the construction effect is guaranteed; and through interactive verification of the three-dimensional model and field detection, the grouting process can be accurately controlled, the bottom binding force and the vertical binding force needed during grouting are guaranteed, the construction cost is further saved, and the construction quality is guaranteed.
本发明公开了一种既有建筑下含基岩裂隙的地基加固抬升方法，主体结构底部设置有地下室，地下室下方设置有筏板基础，筏板基础下方和地下车库下方同为卵石层，卵石层下方为强风化泥质粉砂岩层，强风化泥质粉砂岩层内存在大量分步不均匀的裂隙。本发明通过室外注浆孔、筏板外注浆孔和筏板内注浆孔的设置，利于保证裂隙发育处的有效填充和后续补强层、约束墙和加固底座层的形成；通过补强层、约束墙和加固底座层的设置，利于保证裂隙地区注浆抬升时，浆液不外漏，可有效的提供施工进度保证施工效果；通过三维模型和现场检测的交互验证，利于精确化控制注浆过程，保证注浆时所需底部和竖向束缚力，进一步节省施工成本保证施工质量。
Reinforcing and lifting method for foundation containing bedrock fissures under existing building
一种既有建筑下含基岩裂隙的地基加固抬升方法
CUI TENGYUE (author)
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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