CN205426398U - Multi -functional concrete specimen surface stress automated collection device - Google Patents

Abstract

The utility model relates to a multi -functional concrete specimen surface stress automated collection device. The major structure includes multi -functional concrete specimen, first recess, the second recess, the third recess, first passageway, the second channel, the third passageway, miniature fiber bragg grating strain sensor armor optical cable, miniature silicon pressure drag formula soil pressure sensor shielding waterproof wire, miniature silicon pressure drag formula pore water pressure sensor shielding waterproof wire, sensor signal synthesizes the synchronous demodulation appearance, the outstanding position of multi -functional concrete specimen, miniature fiber bragg grating strain sensor, miniature silicon pressure drag formula soil pressure sensing, miniature silicon pressure drag formula pore water pressure sensor, lower shear box and lower shear box open sides. Compared with the prior art, the utility model, its simple structure, convenient operation, measured data is accurate, and is with low costs, and degree of automation is high, has realized stake pedosphere face and has cuted the various stress data automation in concrete specimen surface and gather.

Description

A kind of multifunctional concrete specimen surface stress automation collection device

Technical field:

This utility model belongs to pile foundation engineering technique field, relates to an a kind of proof stress data acquisition unit for Soil Interface shearing of simulating, particularly a kind of multifunctional concrete specimen surface stress automation collection device.

Background technology:

Stake Soil Interface problem by direct shear test is carried out many repackings, has carried out the research of stake Soil Interface as the soil body and the one in structure Interface problem, many Chinese and overseas scholars.Instrument after repacking is compared with conventional magnetic shear instrument, and its remarkable advantage is can to put into larger-size concrete sample in down cut box.Installing multiple microsensor on concrete sample surface can be with the various stress of test pile Soil Interface, if and the electric wire of these microsensors will be squeezed off without the extraction of special arrangement in process of the test, thus cause the interruption of sample and the loss of test data, electric wire is connected with more Function Data Collect System after drawing, and could realize datamation collection.Through the existing domestic retrieval about stake Soil Interface shearing test device document, and it is connected with more Function Data Collect System after finding no the extraction of concrete sample surface probe electric wire, thus realizes the device of a Soil Interface various stress data automation collection.

Summary of the invention:

Goal of the invention of the present utility model is to overcome the deficiencies in the prior art and defect, seeking design provides an a kind of Soil Interface of simulating to shear the device of concrete sample surface various stress data automation collection, while microsensor is connected with transducing signal complex synchronous (FBG) demodulator, by the groove within special arrangement and passage, multifunctional concrete specimen surface microsensor electric wire can be drawn, it is to avoid electric wire is pressed down in stake Soil Interface shears specimen.

To achieve these goals, agent structure of the present utility model includes multifunctional concrete sample, first groove, second groove, 3rd groove, first passage, second channel, third channel, mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire, transducing signal complex synchronous (FBG) demodulator, multifunctional concrete sample protruding parts, mini optical fibre grating strain transducer, miniature silicon piezoresistance type soil pressure sensing, miniature silicon piezoresistance type pore water pressure sensor, down cut box and down cut box lateral opening；Mini optical fibre grating strain transducer is connected with mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensing is connected with miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, and miniature silicon piezoresistance type pore water pressure sensor is connected with miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire；The multifunctional concrete sample protruding parts of a size of 20 × 20 × 20mm is stretched out at the two ends of multifunctional concrete sample respectively, mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is drawn from multifunctional concrete specimen surface respectively, it is 3mm that the position that mini optical fibre grating strain transducer armored optical cable is drawn is cut with width, the degree of depth is first groove of 5mm, first groove is cut on the downside of multifunctional concrete sample protruding parts, it is 3mm that the downside of multifunctional concrete sample protruding parts is cut with width, the degree of depth is 5mm first passage, first groove connects with first passage；The position that miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire is drawn be cut with width be 5mm, the degree of depth be second groove of 7mm, second groove is cut on the downside of multifunctional concrete sample protruding parts, the downside of multifunctional concrete sample protruding parts be cut with width be 5mm, the degree of depth be the second channel of 7mm, the second groove connects with second channel；The 3rd groove that the position cutting width that miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is drawn is 5mm, the degree of depth is 7mm, 3rd groove is cut on the downside of multifunctional concrete sample protruding parts, the downside of multifunctional concrete sample protruding parts be cut with width be 5mm, the degree of depth be the third channel of 7mm, the 3rd groove connects with third channel；Mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire enter corresponding passage by corresponding groove respectively, down cut box is entered by corresponding passage, it is connected with transducing signal complex synchronous (FBG) demodulator respectively after down cut box lateral opening is drawn, it is achieved the automation collection of the various stress data of multifunctional concrete specimen surface.

Multifunctional concrete sample described in the utility model uses C50 concrete to carry out prefabricated, length position 500mm, and width is 280mm, and height is 100mm；A diameter of 3mm of mini optical fibre grating strain transducer armored optical cable, the diameter of miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire and miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is 5mm；The height of down cut box lateral opening is 8mm, and width is 8mm, distance down cut cassette bottom portion 20mm.

Compared with prior art, its simple in construction, easy to operate, measurement data is accurate, low cost, and automaticity is high, it is achieved that stake Soil Interface shears concrete sample surface various stress data automation collection for this utility model.

Accompanying drawing illustrates:

Fig. 1 is agent structure principle schematic of the present utility model.

Fig. 2 be this utility model relate to groove, passage side structural principle schematic diagram.

Fig. 3 be this utility model relate to multifunctional concrete sample protruding parts, down cut box side structure principle schematic.

Detailed description of the invention:

Below by embodiment and combine accompanying drawing this utility model is described in further detail.

Embodiment:

The agent structure of the present embodiment includes multifunctional concrete sample 1, first groove 2, second groove 3, 3rd groove 4, first passage 5, second channel 6, third channel 7, mini optical fibre grating strain transducer armored optical cable 8, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10, transducing signal complex synchronous (FBG) demodulator 11, multifunctional concrete sample protruding parts 12, mini optical fibre grating strain transducer 13, miniature silicon piezoresistance type soil pressure sensing 14, miniature silicon piezoresistance type pore water pressure sensor 15, down cut box 16 and down cut box lateral opening 17；Mini optical fibre grating strain transducer 13 is connected with mini optical fibre grating strain transducer armored optical cable 8, miniature silicon piezoresistance type soil pressure sensing 14 is connected with miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9, and miniature silicon piezoresistance type pore water pressure sensor 15 is connected with miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10；The multifunctional concrete sample protruding parts 12 of a size of 20 × 20 × 20mm is stretched out at the two ends of multifunctional concrete sample 1 respectively, mini optical fibre grating strain transducer armored optical cable 8, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10 is drawn from multifunctional concrete sample 1 surface respectively, it is 3mm that the position that mini optical fibre grating strain transducer armored optical cable 8 is drawn is cut with width, the degree of depth is first groove 2 of 5mm, first groove 2 is cut on the downside of multifunctional concrete sample protruding parts 12, it is 3mm that the downside of multifunctional concrete sample protruding parts 12 is cut with width, the degree of depth is 5mm first passage 5, first groove 2 connects with first passage 5；The position that miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9 is drawn be cut with width be 5mm, the degree of depth be second groove 3 of 7mm, second groove 3 is cut on the downside of multifunctional concrete sample protruding parts 12, the downside of multifunctional concrete sample protruding parts 12 be cut with width be 5mm, the degree of depth be the second channel 6 of 7mm, the second groove 3 connects with second channel 6；The 3rd groove 4 that the position cutting width that miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10 is drawn is 5mm, the degree of depth is 7mm, 3rd groove 4 is cut on the downside of multifunctional concrete sample protruding parts 12, the downside of multifunctional concrete sample protruding parts 12 be cut with width be 5mm, the degree of depth be the third channel 7 of 7mm, the 3rd groove 4 connects with third channel 7；Mini optical fibre grating strain transducer armored optical cable 8, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10 enter corresponding passage by corresponding groove respectively, down cut box 16 is entered by corresponding passage, it is connected with transducing signal complex synchronous (FBG) demodulator 11 respectively after down cut box lateral opening 17 is drawn, thus realizes the automation collection of the various stress data in multifunctional concrete sample 1 surface.

It is prefabricated that multifunctional concrete sample 1 described in the present embodiment uses C50 concrete to carry out, length position 500mm, and width is 280mm, and height is 100mm；A diameter of 3mm of mini optical fibre grating strain transducer armored optical cable 8, the diameter of miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire 9 and miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire 10 is 5mm；The height of down cut box lateral opening 17 is 8mm, and width is 8mm, 20mm bottom distance down cut box 16.

Claims (1)

1. a multifunctional concrete specimen surface stress automation collection device, agent structure includes multifunctional concrete sample, first groove, second groove, 3rd groove, first passage, second channel, third channel, mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire, transducing signal complex synchronous (FBG) demodulator, multifunctional concrete sample protruding parts, mini optical fibre grating strain transducer, miniature silicon piezoresistance type soil pressure sensing, miniature silicon piezoresistance type pore water pressure sensor, down cut box and down cut box lateral opening；Mini optical fibre grating strain transducer is connected with mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensing is connected with miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, and miniature silicon piezoresistance type pore water pressure sensor is connected with miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire；The multifunctional concrete sample protruding parts of a size of 20 × 20 × 20mm is stretched out at the two ends of multifunctional concrete sample respectively, mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is drawn from multifunctional concrete specimen surface respectively, it is 3mm that the position that mini optical fibre grating strain transducer armored optical cable is drawn is cut with width, the degree of depth is first groove of 5mm, first groove is cut on the downside of multifunctional concrete sample protruding parts, it is 3mm that the downside of multifunctional concrete sample protruding parts is cut with width, the degree of depth is 5mm first passage, first groove connects with first passage；The position that miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire is drawn be cut with width be 5mm, the degree of depth be second groove of 7mm, second groove is cut on the downside of multifunctional concrete sample protruding parts, the downside of multifunctional concrete sample protruding parts be cut with width be 5mm, the degree of depth be the second channel of 7mm, the second groove connects with second channel；The 3rd groove that the position cutting width that miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is drawn is 5mm, the degree of depth is 7mm, 3rd groove is cut on the downside of multifunctional concrete sample protruding parts, the downside of multifunctional concrete sample protruding parts be cut with width be 5mm, the degree of depth be the third channel of 7mm, the 3rd groove connects with third channel；Mini optical fibre grating strain transducer armored optical cable, miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire, miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire enter corresponding passage by corresponding groove respectively, down cut box is entered by corresponding passage, it is connected with transducing signal complex synchronous (FBG) demodulator respectively after down cut box lateral opening is drawn, it is achieved the automation collection of the various stress data of multifunctional concrete specimen surface；

Multifunctional concrete sample described in the utility model uses C50 concrete to carry out prefabricated, length position 500mm, and width is 280mm, and height is 100mm；A diameter of 3mm of mini optical fibre grating strain transducer armored optical cable, the diameter of miniature silicon piezoresistance type soil pressure sensor shielding waterproof wire and miniature silicon piezoresistance type pore water pressure sensor shielding waterproof wire is 5mm；The height of down cut box lateral opening is 8mm, and width is 8mm, distance down cut cassette bottom portion 20mm.