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A platform for research: civil engineering, architecture and urbanism
Karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method
The invention discloses a karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method. The method comprises the following steps that firstly, tunnel bottom karst detection is conducted, specifically, tunnel bottom beaded type karst detection is conducted through a geological radar, for a section with determined karst, geological drilling is adopted for detectionconfirmation to determine beaded type karst distribution conditions including the number of karst caves, the sizes of the karst caves, the positions of the karst caves and karst cave filling conditions; and secondly, steel pipe pile grouting hole design is conducted, specifically, according to the beaded type karst distribution conditions, steel pipe pile grouting parameters are determined. According to the method, the hole forming problem of grouting reinforcement of karst tunnel filling beaded type karst cave steel pipe piles is well solved, through the arrangement of multiple stages of casing pipes, collapse of filler is effectively prevented, drilled holes can be relatively easily formed, drilling equipment is easy to machine on site, the cost is low, mounting and dismounting are easy, the construction speed is high, the hole forming rate is high, the construction period is greatly shortened, and the economic benefit and social benefit are obvious.
本发明公开了一种岩溶隧道底部充填串珠型溶洞钢管桩注浆成孔方法，包括以下步骤：步骤一：隧道底部岩溶探测，采用地质雷达进行隧道底部串珠型岩溶探测，对于存在确定岩溶的地段，采用地质钻孔进行探测确认，确定串珠型岩溶分布情况，包括溶洞数量、溶洞大小、溶洞位置、溶洞充填情况；步骤二：钢管桩注浆孔设计，根据串珠型岩溶的分布情况，确定钢管桩注浆参数；本发明较好的解决了岩溶隧道充填串珠型溶洞钢管桩注浆加固的成孔难题 通过多级套管的设置有效阻止了充填物的塌落，可较易形成钻孔，钻孔设备易于现场加工，成本低，安装和拆除简易，施工速度快，成孔率高，大幅缩短了工期，经济效益和社会效益明显。
Karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method
The invention discloses a karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method. The method comprises the following steps that firstly, tunnel bottom karst detection is conducted, specifically, tunnel bottom beaded type karst detection is conducted through a geological radar, for a section with determined karst, geological drilling is adopted for detectionconfirmation to determine beaded type karst distribution conditions including the number of karst caves, the sizes of the karst caves, the positions of the karst caves and karst cave filling conditions; and secondly, steel pipe pile grouting hole design is conducted, specifically, according to the beaded type karst distribution conditions, steel pipe pile grouting parameters are determined. According to the method, the hole forming problem of grouting reinforcement of karst tunnel filling beaded type karst cave steel pipe piles is well solved, through the arrangement of multiple stages of casing pipes, collapse of filler is effectively prevented, drilled holes can be relatively easily formed, drilling equipment is easy to machine on site, the cost is low, mounting and dismounting are easy, the construction speed is high, the hole forming rate is high, the construction period is greatly shortened, and the economic benefit and social benefit are obvious.
本发明公开了一种岩溶隧道底部充填串珠型溶洞钢管桩注浆成孔方法，包括以下步骤：步骤一：隧道底部岩溶探测，采用地质雷达进行隧道底部串珠型岩溶探测，对于存在确定岩溶的地段，采用地质钻孔进行探测确认，确定串珠型岩溶分布情况，包括溶洞数量、溶洞大小、溶洞位置、溶洞充填情况；步骤二：钢管桩注浆孔设计，根据串珠型岩溶的分布情况，确定钢管桩注浆参数；本发明较好的解决了岩溶隧道充填串珠型溶洞钢管桩注浆加固的成孔难题 通过多级套管的设置有效阻止了充填物的塌落，可较易形成钻孔，钻孔设备易于现场加工，成本低，安装和拆除简易，施工速度快，成孔率高，大幅缩短了工期，经济效益和社会效益明显。
Karst tunnel bottom filling beaded type karst cave steel pipe pile grouting hole forming method
一种岩溶隧道底部充填串珠型溶洞钢管桩注浆成孔方法
XU WENJUN (author) / LI XINZHI (author) / DENG CHANGLIN (author) / LI WENJIANG (author) / LIAO JINTAO (author) / QIAO HONG (author) / ZHAN JINGYU (author) / WANG XIANG (author) / ZHANG QIAN (author)
2020-09-22
Patent
Electronic Resource
Chinese
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