Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of water-stopping supporting system in pipe gallery river-crossing section operation
The invention relates to a construction method of a water-stopping supporting system in pipe gallery river-crossing section operation The method the steps of constructing a diversion channel on the side edge of a river section corresponding to a comprehensive pipe gallery rivet-crossing section position; constructing concrete cast-in-place piles on the two sides of the pipe gallery river-crossingsection and the end part connected with a region to be excavated, and then constructing a first high-pressure jet grouting pile between every two adjacent cast-in-place piles to form a closed body; then constructing second high-pressure jet grouting piles on the outer side of the closed body of the cast-in-place piles and the high-pressure jet grouting piles in a fit connection mode; pouring a concrete cushion layer at the bottom of a foundation pit surrounded by a water-stopping supporting structure, wherein the cushion layer is connected with the water-stopping supporting structure; constructing a reinforced concrete retaining wall connected with a pipe gallery structure, a bottom plate cushion layer and the water-stopping supporting structure at the end part, connected with the region to be excavated, of the pipe gallery river-crossing section; and removing the transverse water-stopping supporting structure in a next-section pipe gallery excavation process. By means of constructionmethod, a good working environment can be provided for a construction area, and underground water is prevented from permeating into the foundation pit through the base or a supporting side wall.
本发明涉及一种管廊穿河段作业中止水支护体系的施工方法，包括：在综合管廊穿河段处对应的河流段侧边修建导流渠；在管廊穿河段两侧和与待挖区连接的端部先施工混凝土灌注桩，再在相邻的两根灌注桩之间施工第一高压旋喷桩形成封闭体；之后在该灌注桩和高压旋喷桩封闭体外侧再施工与其贴合连接的第二高压旋喷桩；在止水支护结构围护的基坑底部浇筑混凝土垫层，该垫层与止水支护结构连接；在管廊穿河段与待开挖区连接的端部修建与管廊结构、底板垫层、止水支护结构相连的钢筋混凝土挡土墙；在下一段管廊开挖过程中，将横向止水支护结构破除。本发明能为施工区域提供良好的作业环境，避免地下水通过基底或支护侧壁渗入基坑内。
Construction method of water-stopping supporting system in pipe gallery river-crossing section operation
The invention relates to a construction method of a water-stopping supporting system in pipe gallery river-crossing section operation The method the steps of constructing a diversion channel on the side edge of a river section corresponding to a comprehensive pipe gallery rivet-crossing section position; constructing concrete cast-in-place piles on the two sides of the pipe gallery river-crossingsection and the end part connected with a region to be excavated, and then constructing a first high-pressure jet grouting pile between every two adjacent cast-in-place piles to form a closed body; then constructing second high-pressure jet grouting piles on the outer side of the closed body of the cast-in-place piles and the high-pressure jet grouting piles in a fit connection mode; pouring a concrete cushion layer at the bottom of a foundation pit surrounded by a water-stopping supporting structure, wherein the cushion layer is connected with the water-stopping supporting structure; constructing a reinforced concrete retaining wall connected with a pipe gallery structure, a bottom plate cushion layer and the water-stopping supporting structure at the end part, connected with the region to be excavated, of the pipe gallery river-crossing section; and removing the transverse water-stopping supporting structure in a next-section pipe gallery excavation process. By means of constructionmethod, a good working environment can be provided for a construction area, and underground water is prevented from permeating into the foundation pit through the base or a supporting side wall.
本发明涉及一种管廊穿河段作业中止水支护体系的施工方法，包括：在综合管廊穿河段处对应的河流段侧边修建导流渠；在管廊穿河段两侧和与待挖区连接的端部先施工混凝土灌注桩，再在相邻的两根灌注桩之间施工第一高压旋喷桩形成封闭体；之后在该灌注桩和高压旋喷桩封闭体外侧再施工与其贴合连接的第二高压旋喷桩；在止水支护结构围护的基坑底部浇筑混凝土垫层，该垫层与止水支护结构连接；在管廊穿河段与待开挖区连接的端部修建与管廊结构、底板垫层、止水支护结构相连的钢筋混凝土挡土墙；在下一段管廊开挖过程中，将横向止水支护结构破除。本发明能为施工区域提供良好的作业环境，避免地下水通过基底或支护侧壁渗入基坑内。
Construction method of water-stopping supporting system in pipe gallery river-crossing section operation
管廊穿河段作业中止水支护体系的施工方法
LIU KAI (Autor:in) / GUO ZHIGUO (Autor:in) / ZHANG GUIJUN (Autor:in) / LUO ZHENGTAO (Autor:in) / XU QIUMING (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
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