Shandong Cable Bridge Frame Manufacturer has sorted out the quality defects and prevention methods of power cable piping, hoping that it will be helpful to you all! 

1.问题：基槽开挖内部积水

1. Problem: Water accumulation in foundation trench excavation

隐患：基坑积水浸泡后，地基土质变软，承载力降低其，引起管渠基础下沉，造成管渠结构折裂损坏

Hidden danger: After the foundation pit is immersed in water, the foundation soil becomes soft and the bearing capacity decreases, which causes the subsidence of the foundation of the pipeline and canal, and causes the fracture and damage of the structure of the pipeline and canal.

原因分析：1）自然降水或其它落水流进基槽，造成积水；

Reason analysis: 1) Natural precipitation or other falling water flows into the foundation trough, causing water accumulation;

2）地下水、滞水，未采取排降、降水措施

2) Groundwater, stagnant water, no drainage and precipitation measures

预防措施：1）雨季施工，须将基槽周边开挖排水沟，防止落水流入槽内；

Preventive measures: 1) In rainy season construction, drainage ditches should be excavated around the foundation trench to prevent water falling into the trench;

2）排水沟应接通原排水管网，开槽宜在枯水期施工；

2) Drainage ditches should be connected to the original drainage network, and grooving should be constructed in dry season.

3）在地下水位以下或有浅层滞水地段挖槽，应采用排水沟、集水井、井点排降水措施；

3) Drainage ditches, catchment wells and well-point drainage measures should be adopted to dig ditches below the groundwater level or in shallow water-holding areas.

4）按照设计要求做好放坡施工

4) Sloping construction according to design requirements

2.问题：排管不整齐，回填不规范

2. Problem: Unorderly drainage and irregular backfilling

隐患：管道挤压变形，降低使用寿命

Hidden danger: pipe extrusion deformation, reduce service life

原因分析：1）未按照设计、规范施工；

Reason analysis: 1) Failure to comply with design and specification of construction;

2）回填土用杂物回填

2) Sundries Backfilling for Backfilling

3）质量管理不到位，工程验收不细致。

3) The quality management is not in place and the project acceptance is not meticulous.

预防措施：1）严格按照作业指导书、规范施工

Preventive measures: 1) Construction in strict accordance with operation instructions and specifications

2）按规范整齐安装排管，并进行固定；

2) Install and fix the pipes neatly according to the specifications;

3）回填前应坑内积水、杂物等，回填土应每300mm夯实一次，后必须培出高于地面300mm的防沉层

3) Water and debris in the pit should be removed before backfilling. The backfill should be compacted every 300 mm. Finally, the Anti-subsidence layer 300 mm above the ground must be cultivated.

好了，今天的内容就先给大家介绍到这里了，收藏山东电缆桥架厂家官网：http://www.sdhangfeng.com，可以了解更多详细信息！

Okay, today's content will be introduced to you first, collect the official website of Shandong Cable Bridge Manufacturer: http://www.sdhangfeng.com, you can learn more details!