How to solve the difficult problem in pipe jacking - manual pipe jacking construction scheme
We will encounter many unimaginable difficulties in the pipe jacking work. How to solve these problems and make the project go smoothly requires us to overcome them and solve them. There are too many articles in this article. 1. Design drawing of Expansion Project of North Section of Shinan Road (Huangsha Expressway Huangge Avenue Section) in Guangzhou Development Zone drawing; 2. Code for Construction and Acceptance of Water Supply and Sewerage Pipelines (GB50268-97); 3. Standard for Concrete Quality Control (GB50164-92); 4. Standard for Quality Inspection and Assessment of Municipal Road Engineering (CJJ1-90); 5. Standard for Quality Inspection and Assessment of Municipal Drainage Pipe and Channel Engineering (CJJ3-90); 6. Documents related to construction regulations, safety, quality and civilized construction issued by Guangzhou Municipal Commission of Construction Chapter II Project Overview 2.1 Project introduction The original design of the project used mechanical pipe jacking construction, but due to the tight construction period, limited construction site, and complex on-site traffic The complex underground pipeline and the possibility of encountering underground obstacles will affect the normal construction of mechanical pipe jacking in this project. Therefore, the pipe jacking in this project will be replaced by manual pipe jacking. DN800 and DN1200 glass fiber reinforced plastic pipes are used, and the buried depth is about 5~7m. After the manual pipe jacking is used, the well positions and pipe section lengths of the working well, receiving well and inspection well will be determined according to the actual situation on site (jacking length, underground obstacles, traffic impact, etc.). 2.2 Construction reference standards GBJ08-221-96 Code for Construction and Acceptance of Municipal Drainage Structures GBJ08-220-96 Code for Construction and Acceptance of Municipal Drainage Pipeline Engineering GBJ141-90 Code for Construction and Acceptance of Water Supply and Drainage Structures YS1411-89 Construction Specification for Anticorrosion Engineering GB50194-93 Code for Safety of Power Supply and Consumption on Construction Site of Building Engineering GBJ208-83 Code for Construction and Acceptance of Underground Waterproof Engineering GB50026-93 Code for Engineering Surveying