为扩大履带式施工机械的应用范围，在已经专门阐述滩海沼泽地带施工车辆的辅助液压蟹爪机构的基础上（详见本刊１９９７年第２３卷第２期），根据软弱地基状况，进一步介绍适用不问土质的几种实用机构及其相对造价，提供了设计和制作依据。 In order to expand the scope of application of crawler-type construction machinery, the auxiliary hydraulic crab claw mechanism for construction vehicles in the coastal marshes has been specifically elaborated (see the second issue of volume 23 in 1997), according to the status of weak foundations, further This paper introduces several practical organizations that apply regardless of soil quality and their relative cost, and provides the basis for design and production.