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Active stable supporting method for underground diaphragm wall slotted hole excavation
The invention discloses an active stable supporting method for underground diaphragm wall slotted hole excavation. Comprising a stable supporting device, underground diaphragm wall groove hole excavation is implemented, and an excavated groove section is obtained; the easy-to-collapse stratum of the excavated groove section is analyzed, and an easy-to-collapse stratum area is obtained; a stable supporting device is put down in the easy-to-collapse stratum area, and the stable supporting device is provided with two supporting ends which can be far away from each other; determining to reach an easy-to-collapse stratum area, and adjusting two supporting ends of the stable supporter to be far away from each other and cling to the hole wall of the slotted hole; according to the scheme, the stable supporting device is creatively used, convenience and portability are achieved, movement is easy, the device can be arranged at any needed place, reinforcing facilities such as jet grouting piles and high-pressure jet grouting which are specially implemented for stabilizing the bottom of the guide wall can be reduced, engineering cost and preparation time are saved, collapse risks and potential losses in the excavation process of the underground diaphragm wall can be remarkably reduced, and the construction period is shortened. And particularly, the method has a relatively ideal effect in the scenes of complex geological conditions, relatively long construction time and use of heavy and large equipment.
本申请公开了一种地下连续墙槽孔开挖主动稳定支撑方法。包括稳定支撑器,本申请实施地下连续墙槽孔开挖,得到开挖完成槽段;分析开挖完成槽段的易坍塌地层,得到易坍塌地层区域;在易坍塌地层区域下放稳定支撑器,稳定支撑器具有两个能够相互远离的支撑端;确定到达易坍塌地层区域,调节稳定支撑器的两个支撑端相互远离且向槽孔孔壁贴紧;本方案创造性的使用稳定支撑器,方便轻便,容易移动,可以安置在任何需要的地方,能减少为了导墙底部稳定专门实施的旋喷桩、高喷等加固设施,节省工程费用和准备时间,且能显著减少地下连续墙开挖过程中的坍塌风险和潜在损失,尤其是复杂地质条件、施工时间较长、使用重型、大型设备的场景,有较理想的效果。
Active stable supporting method for underground diaphragm wall slotted hole excavation
The invention discloses an active stable supporting method for underground diaphragm wall slotted hole excavation. Comprising a stable supporting device, underground diaphragm wall groove hole excavation is implemented, and an excavated groove section is obtained; the easy-to-collapse stratum of the excavated groove section is analyzed, and an easy-to-collapse stratum area is obtained; a stable supporting device is put down in the easy-to-collapse stratum area, and the stable supporting device is provided with two supporting ends which can be far away from each other; determining to reach an easy-to-collapse stratum area, and adjusting two supporting ends of the stable supporter to be far away from each other and cling to the hole wall of the slotted hole; according to the scheme, the stable supporting device is creatively used, convenience and portability are achieved, movement is easy, the device can be arranged at any needed place, reinforcing facilities such as jet grouting piles and high-pressure jet grouting which are specially implemented for stabilizing the bottom of the guide wall can be reduced, engineering cost and preparation time are saved, collapse risks and potential losses in the excavation process of the underground diaphragm wall can be remarkably reduced, and the construction period is shortened. And particularly, the method has a relatively ideal effect in the scenes of complex geological conditions, relatively long construction time and use of heavy and large equipment.
本申请公开了一种地下连续墙槽孔开挖主动稳定支撑方法。包括稳定支撑器,本申请实施地下连续墙槽孔开挖,得到开挖完成槽段;分析开挖完成槽段的易坍塌地层,得到易坍塌地层区域;在易坍塌地层区域下放稳定支撑器,稳定支撑器具有两个能够相互远离的支撑端;确定到达易坍塌地层区域,调节稳定支撑器的两个支撑端相互远离且向槽孔孔壁贴紧;本方案创造性的使用稳定支撑器,方便轻便,容易移动,可以安置在任何需要的地方,能减少为了导墙底部稳定专门实施的旋喷桩、高喷等加固设施,节省工程费用和准备时间,且能显著减少地下连续墙开挖过程中的坍塌风险和潜在损失,尤其是复杂地质条件、施工时间较长、使用重型、大型设备的场景,有较理想的效果。
Active stable supporting method for underground diaphragm wall slotted hole excavation
一种地下连续墙槽孔开挖主动稳定支撑方法
XU FANGCAI (author) / JIANG ZHIAN (author) / SU HANG (author) / SONG YAJING (author) / YANG XIAORONG (author) / HU WEI (author) / WU WENBO (author) / ZHANG BAOZENG (author) / QIAO ZHENGHAO (author)
2023-03-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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