1. 滤水性好，排水畅通，排水效果有保证。
2. 材料有良好的强度和延展性，能适合地基变形能力而不影响排水性能。
3. 排水板断面尺寸小，施打排水板过程中对地基扰动小。
4. 可在超软弱地基上进行插板施工。
5. 施工快、工期短，每台插板机每日可插板15000m以上，造价比袋砂井低。
1 the filtered water is good, smooth drainage, drainage effect is guaranteed.
The 2 materials have good strength and ductility, can be suitable for the deformation of foundation and can not affect the ability of the drainage performance.
3 drainage plate small section size, application of drainage board in the process of the foundation of small disturbance.
4 can be inserted in the ultra soft foundation construction.
5 fast construction, short construction period, each insertion machine can be inserted in a day more than 15000m, than the bag sand well in low cost.
The soft soil foundation with drainage consolidation method for reinforcement, consider from economy and technology, using drainage board almost is the only way to economic, effective, feasible.