Continuously penetrable underwater static sounding device with sleeve function

Abstract

The invention provides a continuously penetrable underwater static sounding device with a sleeve function, which can realize continuous penetrating of a probe and a sleeve. The continuously penetrableunderwater static sounding device with the sleeve function comprises the probe, the sleeve, a first transverse clamping mechanism, a second transverse clamping mechanism, a third transverse clampingmechanism and a longitudinal continuous penetrating mechanism; the sleeve is arranged out of the probe in a sleeving manner; the first transverse clamping mechanism, the second transverse clamping mechanism and the third transverse clamping mechanism are all fixedly arranged on the longitudinal continuous penetrating mechanism; the longitudinal continuous penetrating mechanism comprises two groupsof fixing pieces which are respectively arranged on the two sides of the probe; an upper executing piece and a lower executing piece are longitudinally arranged on each group of the fixing pieces; two groups of the upper executing pieces and the fixing pieces form an upper penetrating mechanism; two groups of the lower executing pieces and the fixing pieces form a lower penetrating mechanism; both the upper executing pieces and the lower executing pieces can move independently and longitudinally on the corresponding fixing pieces; the first transverse clamping mechanism is fixedly connected between the two groups of the upper executing pieces; the second transverse clamping mechanism is fixedly connected between the two groups of the lower executing pieces; and the third transverse clamping mechanism is arranged below the lower penetrating mechanism.

Description

technical field [0001] The invention relates to the technical field of static penetration testing, in particular to an underwater static penetration testing device with a casing function and capable of continuous penetration. Background technique [0002] As a method of in-situ testing of soil in the field of geotechnical engineering technology, static penetration testing is to use the feeding device to penetrate the probe rod with the probe at the bottom into the soil layer, and evaluate parameters such as penetration resistance and friction. The basic physical and mechanical properties of the soil, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc. According to the technical specifications of static penetration testing, the probe rod is required to maintain continuous and stable constant-speed feeding during the process of penetrating into the soil layer. The general feeding speed is 2cm / s, so that continuous and stable soil layer...

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Problems solved by technology

[0003] The traditional mechanical and hydraulic static penetrating machines, because of the intermittent feed mode of the single oil cylinder group, usually have an obvious acceleration process at the beginning of one probe rod, and at the same time between the two probe rods There is a period of pause between them, which is used for the return of the feeding mechanism and the addition of the probe rod, so that the speed of the probe rod penetrating into the soil layer is not uniform, continuous and stable. At the beginning and end of each probe rod due to the penetration The speed does not meet the specification requirements, resulting in bad test data, which affects the acquisition of complete soil layer data

[0004] There are also some double oil cylinder groups that can be used for continuous penetration, but they are not perfect enough for casing penetration and can only be penetrated with probe rods, and the penetration depth is shallow

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