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A platform for research: civil engineering, architecture and urbanism
Sandstone geology dumbbell-shaped bearing platform cofferdam construction method
The invention discloses a sandstone geology dumbbell-shaped bearing platform cofferdam construction method which comprises the steps of building a construction platform, lowering a double-wall cofferdam, inserting and punching a thin beam cofferdam and punching the double-wall cofferdam, in the process of lowering the double-wall cofferdam, after soil in the double-wall cofferdam is grabbed out by using a grab bucket, the thin beam cofferdam is inserted and punched into a hole in the double-wall cofferdam; when the soil below the side wall of the double-wall cofferdam does not collapse inwards, the soil below the side wall of the double-wall cofferdam is blasted firstly, then soil blocks generated by blasting are discharged out of the double-wall cofferdam, the double-wall cofferdam continues to sink, and circulation is conducted till the double-wall cofferdam is lowered to the designed elevation; after the two double-wall cofferdams are both lowered in place, two rows of steel sheet piles are inserted between the two double-wall cofferdams, and the two double-wall cofferdams and the two rows of steel sheet piles form a thin beam cofferdam; and finally, holes are formed in the side walls of the opposite sides of the two double-wall cofferdams, so that the interiors of the double-wall cofferdams communicate with the interiors of the thin beam cofferdams. The method has the effect of improving the efficiency of the cofferdam in the sandstone geology.
本申请公开了一种砂岩地质哑铃型承台围堰施工方法，其包括步骤搭建施工平台、双壁围堰下放、细梁围堰插打和双壁围堰开洞，双壁围堰下放下方过程中，在使用抓斗将双壁围堰内的泥土抓出后，双壁围堰的侧壁的下方的泥土不往内坍塌时，先对双壁围堰的侧壁的下方的泥土进行爆破，再将爆破产生的土块排出双壁围堰，再继续下沉双壁围堰，循环进行，直至双壁围堰下放到设计标高；两个双壁围堰均下放到位后，在两个双壁围堰之间插打两排钢板桩，两个双壁围堰和两排钢板桩形成细梁围堰；最后在两个双壁围堰相对的一侧的侧壁上开洞，使得双壁围堰的内部和细梁围堰的内部连通。本申请具有提高砂岩地质中围堰的效率的效果。
Sandstone geology dumbbell-shaped bearing platform cofferdam construction method
The invention discloses a sandstone geology dumbbell-shaped bearing platform cofferdam construction method which comprises the steps of building a construction platform, lowering a double-wall cofferdam, inserting and punching a thin beam cofferdam and punching the double-wall cofferdam, in the process of lowering the double-wall cofferdam, after soil in the double-wall cofferdam is grabbed out by using a grab bucket, the thin beam cofferdam is inserted and punched into a hole in the double-wall cofferdam; when the soil below the side wall of the double-wall cofferdam does not collapse inwards, the soil below the side wall of the double-wall cofferdam is blasted firstly, then soil blocks generated by blasting are discharged out of the double-wall cofferdam, the double-wall cofferdam continues to sink, and circulation is conducted till the double-wall cofferdam is lowered to the designed elevation; after the two double-wall cofferdams are both lowered in place, two rows of steel sheet piles are inserted between the two double-wall cofferdams, and the two double-wall cofferdams and the two rows of steel sheet piles form a thin beam cofferdam; and finally, holes are formed in the side walls of the opposite sides of the two double-wall cofferdams, so that the interiors of the double-wall cofferdams communicate with the interiors of the thin beam cofferdams. The method has the effect of improving the efficiency of the cofferdam in the sandstone geology.
本申请公开了一种砂岩地质哑铃型承台围堰施工方法，其包括步骤搭建施工平台、双壁围堰下放、细梁围堰插打和双壁围堰开洞，双壁围堰下放下方过程中，在使用抓斗将双壁围堰内的泥土抓出后，双壁围堰的侧壁的下方的泥土不往内坍塌时，先对双壁围堰的侧壁的下方的泥土进行爆破，再将爆破产生的土块排出双壁围堰，再继续下沉双壁围堰，循环进行，直至双壁围堰下放到设计标高；两个双壁围堰均下放到位后，在两个双壁围堰之间插打两排钢板桩，两个双壁围堰和两排钢板桩形成细梁围堰；最后在两个双壁围堰相对的一侧的侧壁上开洞，使得双壁围堰的内部和细梁围堰的内部连通。本申请具有提高砂岩地质中围堰的效率的效果。
Sandstone geology dumbbell-shaped bearing platform cofferdam construction method
一种砂岩地质哑铃型承台围堰施工方法
ZHANG YINGHONG (author) / WANG GUIYU (author) / SUN JUN (author) / RAO KANGFEI (author) / YANG JINGXIN (author) / MA CHAO (author) / JIA LONG (author) / DU TIANJUN (author) / YU WEI (author) / MENG QING (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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