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.問題：基槽開挖內部積水

1. Problem: Water accumulation in foundation trench excavation

隱患：基坑積水浸泡后，地基土質變軟，承載力降低其，引起管渠基礎下沉，造成管渠結構折裂損壞

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進基槽，造成積水；

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

2）地下水、滯水，未采取排降、降水措施

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

預防措施：1）雨季施工，須將基槽周邊開挖排水溝，防止落水流入槽內；

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

2）排水溝應接通原排水管網，開槽宜在枯水期施工；

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淺層滯水地段挖槽，應采用排水溝、集水井、井點排降水措施；

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）按照設計要求做好放坡施工

4) Sloping construction according to design requirements

2.問題：排管不整齊，回填不規(guī)范

2. Problem: Unorderly drainage and irregular backfilling

隱患：管道擠壓變形，降低使用壽命

Hidden danger: pipe extrusion deformation, reduce service life

原因分析：1）未按照設計、規(guī)范施工；

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

2）回填土用雜物回填

2) Sundries Backfilling for Backfilling

3）質量管理不到位，工程驗收不細致。

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

預防措施：1）嚴格按照作業(yè)指導書、規(guī)范施工

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

2）按規(guī)范整齊安裝排管，并進行固定；

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

3）回填前應清除坑內積水、雜物等，回填土應每300mm夯實一次，后建議培出高于地面300mm的防沉層

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，今天的內容就先給大家介紹到這里了，收藏山東電纜橋架廠家官網：http://www.szrdhz.com，可以了解更多詳細信息！

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