A three-dimensional subsea piezostatic penetrating equipment
A pore pressure static penetration and three-dimensional technology, which is applied in construction, infrastructure engineering, on-site foundation soil survey, etc., can solve the problem of single measurement points, achieve simple equipment implementation, improve measurement accuracy, and save costs Effect
Active Publication Date: 2021-12-28
OCEAN UNIV OF CHINA
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[0004] Aiming at the defects in the prior art that the measurement points are single and the position of the probe rod needs to be adjusted for multiple measurements to obtain the multi-level pore pressure, the present invention proposes a three-dimensional subsea pore pressure static sounding equipment, which can realize different Simultaneous measurement of pore water pressure in different azimuths of horizontal gradient, providing more accurate and comprehensive technical guidance for the determination of pore pressure
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[0025] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described here. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] The present invention proposes a three-dimensional seabed hole piezostatic penetrating probe, which is improved on the basis of the traditional optical fiber grating differential pressure electric static penetrating probe. The detection principles are all existing technologies, and will not be elaborated here. Only the structural improvement of how to realize the three-dimensional stereoscopic penetration detection will be de...
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The invention discloses a three-dimensional three-dimensional submarine hole piezostatic penetrating equipment, which includes an extended probe rod A and a centrally controlled anchor rod B. The centrally controlled anchor rod B realizes the control of the extended probe rod A, and the extended probe rod A includes sequentially connecting the multi-section probe body from bottom to top. The top of the lowermost probe body is provided with several fixed sleeves along the circumference, and the fixed sleeves are tapered; the bottom side wall of the second lower probe body is along its A number of lateral extension probes are arranged in the circumferential direction. The lateral extension probes are conical in shape and adopt variable form materials. In the same way, other detection bodies adopt the matching connection relationship between the fixed casing and the lateral extension probe; this scheme realizes multi-dimensional simultaneous monitoring through the structure and control design of the lateral extension probe, which is useful for the study of marine geology Disaster laws, seabed mineral development, etc. have great reference significance and application value.
Description
technical field [0001] The invention belongs to the field of in-situ monitoring of marine geology, and in particular relates to a three-dimensional piezostatic penetrating equipment for seabed holes. Background technique [0002] As a sensitive indicator reflecting the characteristics of seabed sediments, pore water pressure has significance in theoretical research, engineering safety, disaster monitoring, and resource development. Deep-sea pore water pressure includes static pore pressure and excess pore pressure, which acts between particles and pores, and can be used to study the response law of load conditions and soil properties; through the long-term monitoring data of pore pressure, the change of soil properties is analyzed to evaluate The impact of engineering disturbance on seabed stability; monitoring the occurrence of marine geological disasters by studying the response law between the occurrence of submarine liquefaction, landslides, earthquake-induced collapses ...
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IPC IPC(8): E02D1/00E02D1/02
CPCE02D1/00E02D1/027E02D2200/146E02D2600/30E02D2300/0001E02D2300/0029E02D2250/0076
Inventor 刘涛费梓航郭磊张家瑞
Owner OCEAN UNIV OF CHINA