A chain-driven continuous penetration static penetrating device

Abstract

The invention discloses a chain transmission continuous penetrating type static sounding device which comprises a bar-shaped base. A bottom plate is fixed on the upper end of the bar-shaped base. Lower sprocket shaft frames are arranged on a bottom of the bottom plate in a mirror image mode. Lower revolving shafts rotating with the lower sprocket shaft frames in a matched mode are inserted between the lower sprocket shaft frames. Lower sprockets are sleeved between the lower revolving shafts which are between the lower sprocket shaft frames. Hollow pillars are arranged on the chain transmission continuous penetrating type static sounding device and a probing rod is arranged at the center of the pillar. Two plates in the shape of a hill are connected on the probing rod in a sleeved mode and connected in a clamped mode through clamps. Upper covers are covered on the tops of the pillars. Upper sprocket shaft frames are fixed on the tops of the upper covers in a mirror image mode. Upper revolving shafts which rotate with the upper sprocket shaft frames in a matched mode are inserted between the upper sprocket shaft frames. The chain transmission continuous penetrating type static sounding device can effectively achieve continuous penetration, effectively improve working efficiency on a probing spot, effectively avoid the phenomenon that testing precision is affected due to penetration intervals and meet requirements of some small-influence engineering reconnaissance and vast coastal areas.

Description

technical field [0001] The invention relates to a test device for measuring the penetration resistance of soil, in particular to a chain-driven continuous penetration static penetrating device. Background technique [0002] Static penetration testing equipment is commonly used in-situ testing equipment for geotechnical engineering investigation. The test method is to press a contact probe equipped with sensors into the soil at a uniform speed through a series of probe rods with quasi-static force, and measure the penetration at the same time. The resistance encountered by the probe during the penetration process can be used to indirectly determine the physical and mechanical properties of the soil according to the measured penetration resistance, which can be used to divide the soil layer, determine the type of soil, determine the characteristic value of the bearing capacity of the foundation soil, and estimate the single pile. carrying capacity etc. Since the static penetr...

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Problems solved by technology

However, due to the design of double oil cylinders, the size and weight of the equipment are large, the cost is high, the transportation of the equipment is inconvenient, and it is limited by the conditions of entering and exiting the site

However, for the muddy soil widely distributed in coastal areas and the shallow soil layers involved in some projects with shallow impact depth (such as pipelines, railways, highways, etc.), the foundation bearing capacity is low, and some light, fast, Accurate, economical equipment fulfills its testing purpose

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