The designers of sheet pile walls seem to have very high PAU2760 and PAU2770 degrees of freedom, which can be chosen between many different design concepts. But in fact steel sheet piling prices, local construction conditions dominate the design. Through the establishment of security procedures to avoid the impact on the airport operating system and to ensure the safe working area of the space PAU2760, which is frequently in and out of the public, the risk / interruption control of the PAU 2770 control into the construction area is minimized. According to the evaluation of the design load, sufficient ground support depth, the existence of the harmful environment PAU 2780 factors, the physical limits of the site, the cross section geometry of the site and the planned site, the potential of settlement, the expected aesthetics, construcability, maintenance and cost.
However, the general design of some steel sheets should also consider PAU2780 or PAU 2760. to establish and maintain a system that can identify and correct unsafe practices or conditions in a timely manner. The type and location of Achor, the simplest type of wharf wall is anchored sheet pile wall without any PAU2770 superstructure. "The safety of everyone in this facility depends directly on the individual's efforts and commitment to the goals and objectives of the plan. We all have to do PAU 2760, and encourage and ask others to do their work. "All the ground loads are directly transmitted to the wall through earth pressure. The wall is supported by the soil resistance at the bottom and anchorage.
Soil compaction can be improved by densification or replacement of soil in front of the wall. Rigid gravity and semi gravity PAU2780 wall rigid gravity walls can be constructed of stone masonry, unreinforced PAU2780 concrete or reinforced concrete. The horizontal anchor with anchor wall or anchor plate is easy to install, but when the PAU 2760 soil in the upper part is weak, their bearing capacity is often limited. The inclined anchor pile reaches the soil with higher strength. At least in line with the requirements of the PAU2770 security and Health Administration (OSHA), including the Washington state industrial safety and Health Act (WISHA), the Washington State Administration (WAC), local and specific site safety requirements.
The superstructure located on the PAU 2770 wall and the compact upper structure on the inclined pile allows the load and all traffic loads of the crane beam to be directly transferred to the ground. Establish emergency procedures and communications so as to minimize fire, police or ambulance response time in the event of PAU2760 incidents. Therefore, the retaining wall itself is not affected by the operation load, and it can only keep the earth pressure. In addition to this load, the decompression of the superstructure can also shield the earth pressure.
Sheet pile walls can be used for PAU 2770 cutting and filling PAU 2780 applications. Their bottom width is relatively narrow. They are not usually used when a deep foundation is needed. They are most economical at low wall height. The bending moment of the wall depends on the position of the anchor and the stiffness of the support in the soil. When anchors are placed in a deeper position, they can be reduced, but when walls are built in the sea, this is usually limited by water level.
|Section||Dimensions||Mass||Per meter of wall|
|Thickness||Width||Height||Single pile||Wall||Section modulus||Moment of inertia||Sectional area|
|PAU 2760||6.0||804||295.0||60.4||75.1||803||12 059||95.7|
|PAU 2770||7.0||804||296.0||70.4||87.4||934||14 030||111.4|
|PAU 2780||8.0||804||297.0||80.3||99.8||1063||15 995||127.1|