placing sand

Research on welding technology of sand mould backing;

背衬砂垫焊接工艺的研究

Experimental Research on Seismic Reduced Function Sand Cushion under Masonry Structure Foundation;

砌体结构基础下砂垫层隔震性能试验研究

The Study of Seism Response of Sand Cushion in Different Rigidity;

砂垫层刚度对地面地震反应的影响研究

The Study of Seism Response of Sand Cushion in Different Thickness and Different Foundation Pressure;

砂垫层厚度及基底压力对地面地震反应的影响

APPLICABILITY OF FINE SAND CUSHIONS FOR EMBANKMENTS ON SOFT FOUNDATION

软弱滩涂上堤基细砂垫层的适用性研究

Research on Parallel Composite Base Isolation Based on Reactive Spectrum Theory and Sand Cushion Isolation;

基于反应谱理论的并联基础隔震和砂垫层隔震研究

Technical Study on Oil Tank Foundation Treatment with Bedding Pre-elevating and Step Water-filling Pre-compressing;

砂垫层预抬高分级充水预压处理油罐地基技术研究

Research and Progress on CA Mortar of Ballastiess Slab Track Cushion

板式无碴轨道垫层CA砂浆研究与进展

Application of sand and gravel cushion reinforced composites in the projects

加筋复合砂卵石垫层在工程中的应用

Calculation of Bottom Stress of Replacement Sand-Gravel Cushion for Gravity Abutment

重力式桥台换填砂砾垫层底面应力计算

Study and Test on Engineering Properties of Sand-gravel Cushion;

砂砾石碾压垫层的工程性能试验与研究

Application of the sand-grave cushion and the earthwork grille on the treatment of the soft soil

砂石垫层及土工格栅在软土处理中的应用

Study on the Influence of Sand and Gravel Cushion on Seismic Response for the Tall Buildings;

铺设砂砾石垫层对烟囱类高耸结构地震反应影响的研究

Design and Application of Geo-technological Grid Compound Sand Cushion Layer to Widening Soft Road Bed;

土工格栅砂砾垫层在软弱地基路基加宽段的应用设计

Abstract: The paper introduced the application of geotech lattice, three-dimension vegetation mattress and other geotextile materials in slope protection.

文摘:介绍了在砂基砂坝中采用土工格室、维植被网垫等特种土工材料的护坡应用情况。

cumulative advance

累计垫款,累积垫款

or cushion, of low-pressure air,

低压空气垫或软垫，

horse shoe washer

开口垫圈,马蹄形垫圈

A decorative cushion.

垫子装饰精美的垫子