Expansion joint: to meet the deformation of foundation, expansion and construction requirements play, prevent play a change in temperature in transverse crack produces.
伸缩缝：为适应地基变形，管身伸缩及施工要求，防止管身在温度变化时产生横向裂缝。
2
Transverse displacement of bridge abutment and fill slide of approach happened during the construction period of Shanghai Huqingping Freeway.
上海沪青平高速公路施工期间，发生桥台横向位移和引道填土滑坡的情况。
3
Its most outstanding characteristic is to transform transverse bracing welding from air to ground, thus securing construction and ensuring assembly quality.