Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel portal reinforcing structure and method for jacking pipe to penetrate through micro-confined aquifer
The invention discloses a tunnel portal reinforcing structure and method for a jacking pipe to penetrate through a micro-confined aquifer, and the reinforcing structure comprises a foundation pit support which is arranged on the periphery of a jacking pipe working well; the multiple rows of MJS construction method piles are arranged on the outer side of a pipe jacking tunnel portal on the pipe jacking working well and are sequentially arranged in the direction from the position close to the pipe jacking working well to the position away from the pipe jacking working well, the multiple rows of MJS construction method piles are meshed with one another, the row of MJS construction method piles close to the foundation pit support are meshed with the foundation pit support, and the row of MJS construction method piles close to the foundation pit support are meshed with the foundation pit support. The multiple MJS construction method piles in each row of MJS construction method piles are sequentially engaged; the dewatering wells are arranged on the outer side of the pipe jacking working well and located on the two sides of the pipe jacking tunnel portal; and the multiple high-pressure jet grouting piles are sequentially meshed and arranged on the periphery of the dewatering well, the high-pressure jet grouting piles located at the two ends are respectively meshed with the foundation pit support, and one row of MJS construction method piles are meshed. According to the structure and method provided by the invention, the water-rich river-adjacent side tunnel portal starting and receiving water and sand gushing risks can be reduced, and ground surface settlement is controlled.
本发明公开了一种顶管穿越微承压含水层的洞门加固结构及方法，加固包括：基坑支护，设置在顶管工作井的外围；多排MJS工法桩，设置在所述顶管工作井上顶管洞门的外侧且沿靠近所述顶管工作井向远离所述顶管工作井方向依次排布，所述多排MJS工法桩之间相互咬合，靠近所述基坑支护的一排MJS工法桩与所述基坑支护相咬合，每排MJS工法桩的多个MJS工法桩依次咬合；降水井，设置在所述顶管工作井的外侧并位于顶管洞门的两侧；多个高压旋喷桩，所述多个高压旋喷桩依次咬合且布置在所述降水井的外围，位于两头的高压旋喷桩分别与所述基坑支护、其中一排MJS工法桩相咬合。本发明提供的结构及方法，可降低富水临河侧洞门始发及接收涌水涌沙风险，控制地表沉降。
Tunnel portal reinforcing structure and method for jacking pipe to penetrate through micro-confined aquifer
The invention discloses a tunnel portal reinforcing structure and method for a jacking pipe to penetrate through a micro-confined aquifer, and the reinforcing structure comprises a foundation pit support which is arranged on the periphery of a jacking pipe working well; the multiple rows of MJS construction method piles are arranged on the outer side of a pipe jacking tunnel portal on the pipe jacking working well and are sequentially arranged in the direction from the position close to the pipe jacking working well to the position away from the pipe jacking working well, the multiple rows of MJS construction method piles are meshed with one another, the row of MJS construction method piles close to the foundation pit support are meshed with the foundation pit support, and the row of MJS construction method piles close to the foundation pit support are meshed with the foundation pit support. The multiple MJS construction method piles in each row of MJS construction method piles are sequentially engaged; the dewatering wells are arranged on the outer side of the pipe jacking working well and located on the two sides of the pipe jacking tunnel portal; and the multiple high-pressure jet grouting piles are sequentially meshed and arranged on the periphery of the dewatering well, the high-pressure jet grouting piles located at the two ends are respectively meshed with the foundation pit support, and one row of MJS construction method piles are meshed. According to the structure and method provided by the invention, the water-rich river-adjacent side tunnel portal starting and receiving water and sand gushing risks can be reduced, and ground surface settlement is controlled.
本发明公开了一种顶管穿越微承压含水层的洞门加固结构及方法，加固包括：基坑支护，设置在顶管工作井的外围；多排MJS工法桩，设置在所述顶管工作井上顶管洞门的外侧且沿靠近所述顶管工作井向远离所述顶管工作井方向依次排布，所述多排MJS工法桩之间相互咬合，靠近所述基坑支护的一排MJS工法桩与所述基坑支护相咬合，每排MJS工法桩的多个MJS工法桩依次咬合；降水井，设置在所述顶管工作井的外侧并位于顶管洞门的两侧；多个高压旋喷桩，所述多个高压旋喷桩依次咬合且布置在所述降水井的外围，位于两头的高压旋喷桩分别与所述基坑支护、其中一排MJS工法桩相咬合。本发明提供的结构及方法，可降低富水临河侧洞门始发及接收涌水涌沙风险，控制地表沉降。
Tunnel portal reinforcing structure and method for jacking pipe to penetrate through micro-confined aquifer
一种顶管穿越微承压含水层的洞门加固结构及方法
ZHU YI (Autor:in) / DAI YAPING (Autor:in) / CHEN YONG (Autor:in) / YE JIA (Autor:in) / ZHU LIMING (Autor:in) / JIN YAN (Autor:in) / WU WENCHUN (Autor:in) / YUAN XUEFEN (Autor:in)
17.11.2023
Patent
Elektronische Ressource
Chinesisch
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