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A platform for research: civil engineering, architecture and urbanism
Pipe-jacking working well structure for sandy soil layer and construction method thereof
The invention provides a pipe-jacking working well structure for a sandy soil layer and a construction method thereof, and relates to the field of pipe-jacking working wells. The pipe-jacking workingwell structure for the sandy soil layer comprises an open caisson body and a peripheral supporting structure, wherein the peripheral supporting structure comprises a plurality of splicing units and asupporting frame, and a protective space for containing the open caisson body is defined by the splicing units; holes are formed in the side wall of the open caisson body, a plurality of hole reinforcing piles are arranged between the open caisson body and the peripheral supporting structure, and the plurality of hole reinforcing piles are continuously arranged at the positions corresponding to the outer sides of the holes to form reinforcing barrier layers. The splicing units obstruct the external sandy soil layer to prevent muddy water seepage and sandy soil from sliding into the interior ofthe protective space, and the safe and reliable construction of the open caisson body is guaranteed; and the splicing units can adapt to the water flow erosion and sandy soil sliding environment in the sandy soil layer along the bank of a water system, the hole parts of the open caisson body are effectively shielded through the hole reinforcing piles, and the problem that outer-layer sandy soil is lost and collapsed is solved.
本发明提供了一种用于砂性土层的顶管工作井结构及其施工方法，涉及顶管工作井领域。用于砂性土层的顶管工作井结构包括沉井本体和外围支护结构，外围支护结构包括多个拼接单元和支撑框架，多个拼接单元围设形成容纳沉井本体的防护空间；沉井本体的侧壁开设有孔洞，沉井本体与外围支护结构之间设有多个孔洞加固桩，多个孔洞加固桩连续布置对应孔洞的外侧位置并构成加固屏障层。拼接单元对外部的砂性土层进行阻隔，防止泥水渗流和砂土滑落进入防护空间内部，确保了沉井本体的安全、可靠施工；拼接单元能适应水系沿岸的砂性土层中水流冲蚀和沙土滑移环境，通过孔洞加固桩对沉井本体的孔洞部分进行有效遮挡，消除了外层砂土发生流失坍塌的问题。
Pipe-jacking working well structure for sandy soil layer and construction method thereof
The invention provides a pipe-jacking working well structure for a sandy soil layer and a construction method thereof, and relates to the field of pipe-jacking working wells. The pipe-jacking workingwell structure for the sandy soil layer comprises an open caisson body and a peripheral supporting structure, wherein the peripheral supporting structure comprises a plurality of splicing units and asupporting frame, and a protective space for containing the open caisson body is defined by the splicing units; holes are formed in the side wall of the open caisson body, a plurality of hole reinforcing piles are arranged between the open caisson body and the peripheral supporting structure, and the plurality of hole reinforcing piles are continuously arranged at the positions corresponding to the outer sides of the holes to form reinforcing barrier layers. The splicing units obstruct the external sandy soil layer to prevent muddy water seepage and sandy soil from sliding into the interior ofthe protective space, and the safe and reliable construction of the open caisson body is guaranteed; and the splicing units can adapt to the water flow erosion and sandy soil sliding environment in the sandy soil layer along the bank of a water system, the hole parts of the open caisson body are effectively shielded through the hole reinforcing piles, and the problem that outer-layer sandy soil is lost and collapsed is solved.
本发明提供了一种用于砂性土层的顶管工作井结构及其施工方法，涉及顶管工作井领域。用于砂性土层的顶管工作井结构包括沉井本体和外围支护结构，外围支护结构包括多个拼接单元和支撑框架，多个拼接单元围设形成容纳沉井本体的防护空间；沉井本体的侧壁开设有孔洞，沉井本体与外围支护结构之间设有多个孔洞加固桩，多个孔洞加固桩连续布置对应孔洞的外侧位置并构成加固屏障层。拼接单元对外部的砂性土层进行阻隔，防止泥水渗流和砂土滑落进入防护空间内部，确保了沉井本体的安全、可靠施工；拼接单元能适应水系沿岸的砂性土层中水流冲蚀和沙土滑移环境，通过孔洞加固桩对沉井本体的孔洞部分进行有效遮挡，消除了外层砂土发生流失坍塌的问题。
Pipe-jacking working well structure for sandy soil layer and construction method thereof
一种用于砂性土层的顶管工作井结构及其施工方法
HUANG WENHE (author) / ZHANG SHILANG (author) / XU GUBAO (author) / HE HUI (author) / LIU LIWEI (author) / TAN JING (author) / LIU CHANG (author) / YANG WEIJIAN (author) / YUAN WEICHANG (author) / ZHANG YE (author)
2020-09-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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