﻿ 盾构机同步注浆管路的结构优化 Optimizing Structure for Simultaneous Back Filling Pipelines of Shield Machine

Open Journal of Transportation Technologies
Vol.06 No.05(2017), Article ID:21990,6 pages
10.12677/OJTT.2017.65028

Optimizing Structure for Simultaneous Back Filling Pipelines of Shield Machine

Yang Yang, Yunjie Chen, Fazhan Liu, Li Chen, Chen Liu

Wuhan Marine Machinery Plant Co., Ltd., Wuhan Hubei

Received: Aug. 21st, 2017; accepted: Sep. 4th, 2017; published: Sep. 11th, 2017

ABSTRACT

During the tunneling construction, the simultaneous back filling pipelines often being jammed, the shield manufacturers and construction units are trying to finding out a more appropriate structure of simultaneous back filling pipelines to avoid jam. In this article, the author firstly introduces some different structures of simultaneous back filling pipelines, compares and analyzes their advantages and disadvantages according to the tunneling construction’s practical conditions, optimizing a new type structure of simultaneous back filling pipelines.

Keywords:Tunneling Construction, Simultaneous Back Filling Pipeline, Optimizing Design

1. 引言

2. 同步注浆的目的和原理

2.1. 同步注浆的目的

1) 防止和减少地层沉陷，保证环境安全；

2) 保证地层压力较为均匀地径向作用于管片，限制管片位移和变形，提高结构的稳定性；

3) 作为隧道第一防水层，加强隧道防水。

2.2. 同步注浆的原理

3. 同步注浆管路的发展现状

Figure 1. Schematic diagram of synchronous grouting of shield tail

4. 同步注浆管路的优化

4.1. 现有的注浆管结构形式

(1) 外置式注浆管

(2) 嵌入式内置注浆管

(3) 盾尾壳体内加工成型的注浆管

Figure 2. Layout of external grouting pipe

Figure 3. Sketch map of embedded grouting pipe

Figure 4. Schematic diagram of the grouting pipe for forming the shield in the tail shell

(4) 可拆卸式注浆管

4.2. 优化的注浆管结构形式

Figure 5. Schematic diagram of a detachable grouting pipe

Figure 6. Schematic diagram of an optimized grouting tube

Figure 7. Schematic diagram of the cleaning mouth structure

5. 结语

Optimizing Structure for Simultaneous Back Filling Pipelines of Shield Machine[J]. 交通技术, 2017, 06(05): 212-217. http://dx.doi.org/10.12677/OJTT.2017.65028

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