A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Treatment method for cast-in-situ bored pile line invasion in karst stratum
The invention discloses a treatment method for a cast-in-situ bored pile invasion line in a karst stratum, which is used for chiseling away an invasion line part of an invasion line cast-in-situ pile and comprises the following steps: when the invasion line part of the invasion line cast-in-situ pile is greater than 30% of the pile diameter, making a measurement mark; breaking an anchor protection layer of the line-invading cast-in-place pile, and measuring the size of a main structure invaded by the line-invading cast-in Digging rock soil between the line-invading cast-in-place piles to the soil facing side of a normal pile according to the size of a main structure invaded by the line-invading cast-in-place piles, and hanging a net to spray plain concrete for primary support protection; marking a to-be-broken line-invading part of the line-invading cast-in-place pile; breaking and pre-plugging the line-invading cast-in-place pile into the space of the I-shaped steel at the upward position of the bottom plane of the line-invading cast-in-place pile needing to be broken; i-shaped steel is plugged up and down and double-spliced I-shaped steel is implanted to form a door-shaped support. According to the treatment method for the line invasion of the cast-in-situ bored pile in the karst stratum, the safety risk of a foundation pit caused after line invasion cast-in-situ pile treatment is avoided, and the safety of the foundation pit is guaranteed.
本发明公开了一种岩溶地层中钻孔灌注桩侵线的处理方法，对侵线灌注桩的侵线部分进行凿除，包括以下步骤：侵线灌注桩侵线部位大于桩径30％时，做好测量标记；破除侵线灌注桩锚保护层，测量侵线灌注桩侵入主体结构尺寸；根据侵线灌注桩侵入主体结构尺寸掏挖侵线灌注桩间岩土至正常桩迎土侧位置并挂网喷素砼做初支防护；标示侵线灌注桩需破除的侵线部位；在需破除侵线灌注桩底平面向上位置将侵线灌注桩破除预塞入工字钢的空间；上下塞入工字钢并植入双拼工字钢，形成门型支撑。本发明采用上述一种岩溶地层中钻孔灌注桩侵线的处理方法，规避了侵线灌注桩处理后带来的基坑安全风险，保证了基坑的安全。
Treatment method for cast-in-situ bored pile line invasion in karst stratum
The invention discloses a treatment method for a cast-in-situ bored pile invasion line in a karst stratum, which is used for chiseling away an invasion line part of an invasion line cast-in-situ pile and comprises the following steps: when the invasion line part of the invasion line cast-in-situ pile is greater than 30% of the pile diameter, making a measurement mark; breaking an anchor protection layer of the line-invading cast-in-place pile, and measuring the size of a main structure invaded by the line-invading cast-in Digging rock soil between the line-invading cast-in-place piles to the soil facing side of a normal pile according to the size of a main structure invaded by the line-invading cast-in-place piles, and hanging a net to spray plain concrete for primary support protection; marking a to-be-broken line-invading part of the line-invading cast-in-place pile; breaking and pre-plugging the line-invading cast-in-place pile into the space of the I-shaped steel at the upward position of the bottom plane of the line-invading cast-in-place pile needing to be broken; i-shaped steel is plugged up and down and double-spliced I-shaped steel is implanted to form a door-shaped support. According to the treatment method for the line invasion of the cast-in-situ bored pile in the karst stratum, the safety risk of a foundation pit caused after line invasion cast-in-situ pile treatment is avoided, and the safety of the foundation pit is guaranteed.
本发明公开了一种岩溶地层中钻孔灌注桩侵线的处理方法，对侵线灌注桩的侵线部分进行凿除，包括以下步骤：侵线灌注桩侵线部位大于桩径30％时，做好测量标记；破除侵线灌注桩锚保护层，测量侵线灌注桩侵入主体结构尺寸；根据侵线灌注桩侵入主体结构尺寸掏挖侵线灌注桩间岩土至正常桩迎土侧位置并挂网喷素砼做初支防护；标示侵线灌注桩需破除的侵线部位；在需破除侵线灌注桩底平面向上位置将侵线灌注桩破除预塞入工字钢的空间；上下塞入工字钢并植入双拼工字钢，形成门型支撑。本发明采用上述一种岩溶地层中钻孔灌注桩侵线的处理方法，规避了侵线灌注桩处理后带来的基坑安全风险，保证了基坑的安全。
Treatment method for cast-in-situ bored pile line invasion in karst stratum
一种岩溶地层中钻孔灌注桩侵线的处理方法
WEN FAQING (author) / ZHANG SHOUTONG (author) / YAN SHUAISHUAI (author) / WANG CHAOHUI (author) / HU JUN (author) / WEN MINCHEN (author) / LIU YIN (author) / ZHOU BAOJUN (author) / WANG HONGXU (author)
2023-02-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Karst stratum cast-in-situ bored pile construction method
| European Patent Office | 2020
Method for treating hole stringing phenomenon in karst stratum cast-in-situ bored pile construction
| European Patent Office | 2022
Cast-in-situ bored pile construction method under poor stratum
| European Patent Office | 2024
Soft soil stratum cast-in-situ bored pile construction device
| European Patent Office | 2024
Pile-forming construction method for cast-in-situ bored pile in karst area
| European Patent Office | 2024