CN204421888U - Subterranean strata delaminating deposition measurement mechanism - Google Patents

Abstract

The utility model discloses a kind of subterranean strata delaminating deposition measurement mechanism, relate to the slippage device technique field measuring rock stratum.Described measurement mechanism comprises plastics feeler lever, central insulation post, swept resistance coil, slide plate, clamp assembly, power supply, divider resistance Rg, switch S and reometer A, the positive pole of power supply is connected with resistance coil binding post, and the negative pole of power supply is connected with each Metallic rod binding post after reometer A respectively through resistance Rg, switch S successively.Described measurement mechanism adopts the design concept of slide rheostat, measures subterranean strata settlement measurement, has test result accurate, and structure is simple, feature easy to use.

Description

Subterranean strata delaminating deposition measurement mechanism

Technical field

The utility model relates to the slippage device technique field measuring rock stratum, particularly relates to a kind of subterranean strata delaminating deposition measurement mechanism.

Background technology

The method that still neither one is good is up to now measured for subterranean strata delaminating deposition, for each layer sedimentation solved under subterranean strata complex situations condition and need to carry out comparatively accurate surveying work, people have worked out in method electromagnetic method being applied to subterranean strata settlement measurement.But due to a earth inherently significant magnetic field, some rock stratum, underground also has magnetic field, be subject to magnetic field error impact in this way and comparatively accurate measurement result can not be provided.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of subterranean strata delaminating deposition measurement mechanism, described measurement mechanism adopts the design concept of slide rheostat, measures subterranean strata settlement measurement, has test result accurate, structure is simple, feature easy to use.

For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of subterranean strata delaminating deposition measurement mechanism, it is characterized in that: described measurement mechanism comprises plastics feeler lever, central insulation post, swept resistance coil, slide plate and clamp assembly, described plastics feeler lever is hollow rod shape structure, and sealed bottom, upper opening, upper opening is provided with top pressure closure, the sidewall of described plastics feeler lever offers some the lines of rabbet joint in the axial direction, described line of rabbet joint internal fixtion has fastener assembly, the vertical Metallic rod identical with line of rabbet joint quantity is provided with in the plastics feeler lever relative with the described line of rabbet joint, one end of described Metallic rod is fixedly connected with the base of plastics feeler lever, pull head on described fastener assembly and described Metallic rod are slidably matched, the centre that Metallic rod encloses is provided with the vertical central insulation post that one end is fixedly connected with described base, the periphery of described central insulation post is wound with described swept resistance coil, each fastener assembly is provided with one and is positioned at clamp assembly outside plastics feeler lever and a slide plate be positioned at inside plastics feeler lever, described slide plate directly contacts with described swept resistance coil, described top cover is respectively equipped with the resistance coil binding post and Metallic rod binding post that are connected with one end of swept resistance coil.

Further technical scheme is: described measurement mechanism also comprises power supply, divider resistance Rg, switch S and reometer A, the positive pole of power supply is connected with resistance coil binding post, and the negative pole of power supply is connected with each Metallic rod binding post after reometer A respectively through resistance Rg, switch S successively.

Further technical scheme is: described fastener assembly comprises the slide fastener be fixedly connected in the line of rabbet joint and the pull head be engaged on slide fastener, and described slide plate is fixed on the inner side of described pull head, and described clamp assembly is fixed on the outside of described pull head.

Further technical scheme is: described clamp assembly comprises T-shaped seat and the arc suitable with the periphery of plastics feeler lever, T-shaped seat with between arc by being connected by the spring compressed.

The beneficial effect adopting technique scheme to produce is: described measurement mechanism is the design concept adopting slide rheostat, use the settling amount of each layer of resistance measurement subterranean strata, the impact mostly descending complex formation and magnetic field of the earth can be overcome, there is measuring accuracy high, structure is simple, easy to use, practical feature.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is the structural representation of top cover described in the utility model;

Fig. 2 is the plan structure schematic diagram after the utility model removes top cover;

Fig. 3 is the structural representation of pull head described in Fig. 1;

Fig. 4 is the perspective view of measurement mechanism described in the utility model;

Fig. 5 is the circuit theory diagrams of described measurement mechanism;

Wherein: 1, plastics feeler lever 2, central insulation post 3, swept resistance coil 4, slide plate 5, clamp assembly 51, T-shaped seat 52, arc 53, spring 6, fastener assembly 61, slide fastener 62, pull head 7, Metallic rod 8, resistance coil binding post 9, Metallic rod binding post.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.

As Figure 1-4, the utility model discloses a kind of subterranean strata delaminating deposition measurement mechanism, described measurement mechanism comprises plastics feeler lever 1, central insulation post 2, swept resistance coil 3, slide plate 4 and clamp assembly 5.

Described plastics feeler lever 1 is hollow rod shape structure, and sealed bottom, upper opening, upper opening is provided with top pressure closure, and top cover is as shown in Figure 2.The sidewall of described plastics feeler lever 1 offers some the lines of rabbet joint in the axial direction, described line of rabbet joint internal fixtion has fastener assembly 6, described fastener assembly 6 comprises the slide fastener 61 be fixedly connected in the line of rabbet joint and the pull head 62 be engaged on slide fastener, described slide plate 4 is fixed on the inner side of described pull head 62, and described clamp assembly 5 is fixed on the outside of described pull head 62.Described clamp assembly 5 comprises T-shaped seat 51 and the arc 52 suitable with the periphery of plastics feeler lever 1, T-shaped seat 51 with between arc 52 by being connected by the spring 53 compressed.

As in Figure 2-4, the vertical Metallic rod 7 identical with line of rabbet joint quantity is provided with in the plastics feeler lever 1 relative with the described line of rabbet joint, one end of described Metallic rod 7 is fixedly connected with the base of plastics feeler lever 1, pull head on described fastener assembly and described Metallic rod are slidably matched, and described Metallic rod is used for carrying out spacing to described fastener assembly and supporting.The centre that Metallic rod 7 encloses is provided with the vertical central insulation post 2 that one end is fixedly connected with described base, and the periphery of described central insulation post 2 is wound with described swept resistance coil 3.The pull head 62 of each fastener assembly 6 is provided with one and is positioned at clamp assembly 5 outside plastics feeler lever 1 and a slide plate 4 be positioned at inside plastics feeler lever 1.Described slide plate 4 directly contacts with described swept resistance coil 3, described top cover is respectively equipped with the resistance coil binding post 8 and Metallic rod binding post 9 that are connected with one end of swept resistance coil 3.Swept resistance coil 3, central insulation post 2 and slide plate form slide rheostat.

As shown in Figure 5, described measurement mechanism also comprises the test circuit that power supply, divider resistance Rg, switch S and reometer A are formed, the positive pole of power supply is connected with resistance coil binding post 8, and the negative pole of power supply is connected with each Metallic rod binding post 9 after reometer A respectively through resistance Rg, switch S successively.Described clamp assembly 5 is for locking the position of described pull head 62 on described slide fastener 61, when described measurement mechanism is put in rock stratum, along with the sinking of rock stratum described for drive clamp assembly 5 moved downward thus drive described slide plate to move downward, changing the resistance value of the swept resistance coil 3 of access test circuit.

Corresponding with above-mentioned measurement mechanism is a kind of subterranean strata delaminating deposition measuring method, and described method comprises the steps:

(1) the rock stratum sample obtained according to punching obtains the positional information of each rock stratum;

(2) plastics feeler lever is extend into Kong Zhongzai and arrives corresponding rock stratum place by outer wall clamp assembly 5 being arranged on plastics feeler lever 1;

(3) positive pole of power supply is connected with resistance coil binding post 8, the negative pole of power supply is connected with each Metallic rod binding post 10 after reometer A respectively through resistance Rg, switch S successively, swept resistance coil 3 is accessed in metering circuit, and whether correctly to calculate the position of corresponding clamp assembly 5 by the electric current and voltmeter measuring swept resistance coil 3, whether swept resistance coil 3 can be accessed metering circuit;

(4) if access incorrect, the position of adjustment clamp assembly 5, makes swept resistance coil 3 access metering circuit, if correct, carries out next step;

(5) adjust clamp assembly 5, make it be stuck on corresponding rock stratum;

(6) measure and record current value corresponding to each rock stratum and magnitude of voltage;

(7) the sedimentation variable quantity of rock stratum is obtained according to current value and magnitude of voltage.

Concrete, can obtain the different depth value of rock stratum according to drilling data, suppose that rock stratum sample has four rock stratum, the degree of depth of four rock stratum is respectively a, b, c, d, by clamp assembly 5 respectively corresponding four degree of depth be arranged on and insulate on the outer wall of feeler lever 1;

Insulation feeler lever 1 extend into Kong Zhongzai and arrives corresponding rock stratum, the positive pole of power supply is connected with resistance coil binding post after fixing by insulation feeler lever, the negative pole of power supply is connected with each Metallic rod binding post after reometer A respectively through resistance Rg, switch S successively, by swept resistance coil access metering circuit in, Metallic rod binding post be pick out end and be 9-1-a, 9-1-b, 9-1-c, 9-1-d to the terminal marking of the corresponding degree of depth; Periodically record the current value of each reometer A, the resistance value of each degree of depth of Current calculation swept resistance coil recorded according to known supply voltage and each cycle and then calculate the increased resistance value of corresponding a, b, c, d tetra-degree of depth rock stratum, concrete computing method and computing formula are:

$I_i={I_a}_i+{I_b}_i+{I_c}_i+{I_d}_i$ ；

$R_{a_i}=\frac{U-I_{R_g}}{I_{a_i}};$

$R_{b_i}=\frac{U-I_{R_g}}{I_{b_i}};$

$R_{c_i}=\frac{U-I_{R_g}}{I_{c_i}};$

$R_{d_i}=\frac{U-I_{R_g}}{I_{d_i}};$

I=1 in formula, 2 ..., k, represents different observation cycles, and U is supply voltage; I _iit is the current value in the i-th cycle; the resistance value at subterranean strata different depth place, be respectively the current value at the corresponding different depth place of subterranean strata;

According to resistance formula

Can draw $l_1=\frac{\mathrm{US}}{{\mathrm{\ρI}}_1};l_2=\frac{\mathrm{US}}{{\mathrm{\ρI}}_2};\mathrm{\Δl}=l_1-l_2;$

Draw variable quantity thus

Wherein: R is resistance; ρ is the resistivity of coil; S is the sectional area of slide rheostat, and U is the burning voltage of power supply, and Δ l is exactly the variable quantity of slide rheostat resistance wire, and r is the radius of newel, and d is the diameter of resistance wire, and L is the sedimentation variable quantity of the rock stratum of different depth.

Below the measuring accuracy of described measuring method is analyzed:

$\mathrm{\Δl}=l_1-l_2=\frac{\mathrm{US}}{{\mathrm{\ρI}}_1}-\frac{\mathrm{US}}{{\mathrm{\ρI}}_2};I=\frac{d}{2\mathrm{\πr}}(\frac{\mathrm{US}}{{\mathrm{\ρI}}_1}-\frac{\mathrm{US}}{{\mathrm{\ρI}}_2})$

According to law of propagation of errors:

$m_{\mathrm{\Δl}}=\frac{\mathrm{US}}{\mathrm{\ρ}}\sqrt{\frac{m_{I_1}^2}{I_1^2}+\frac{m_{I_2}^2}{I_2^2}}$

Because reometer precision corresponding during measurement does not change, can think

Obtain thus: $m_{\mathrm{\Δl}}=\frac{{\mathrm{USm}}_0}{\mathrm{\ρ}}\sqrt{\frac{1}{I_1^2}+\frac{1}{I_2^2}};m_L=\frac{d}{2\mathrm{\πr}}{m}_{\mathrm{\Δl}}.$

Current state-of-the-art electric current target measuring accuracy can reach: ± 0.1%F.S (direct current signal input); ± 0.2%F.S (AC signal input); The measuring accuracy m of the sedimentation variable quantity of the rock stratum that (F.S:full-scale, full scale) obtains thus _lcan reach grade precision, be practical in this approach, and degree of accuracy is higher.

To sum up, described measurement mechanism is the design concept adopting slide rheostat, uses the settling amount of each layer of resistance measurement subterranean strata, can overcome the impact mostly descending complex formation and magnetic field of the earth, have measuring accuracy high, structure is simple, easy to use, practical feature.

Claims (4)

1. a subterranean strata delaminating deposition measurement mechanism, it is characterized in that: described measurement mechanism comprises plastics feeler lever (1), central insulation post (2), swept resistance coil (3), slide plate (4) and clamp assembly (5), described plastics feeler lever (1) is hollow rod shape structure, and sealed bottom, upper opening, upper opening is provided with top pressure closure, the sidewall of described plastics feeler lever (1) offers some the lines of rabbet joint in the axial direction, described line of rabbet joint internal fixtion has fastener assembly (6), the vertical Metallic rod (7) identical with line of rabbet joint quantity is provided with in the plastics feeler lever (1) relative with the described line of rabbet joint, one end of described Metallic rod (7) is fixedly connected with the base of plastics feeler lever (1), pull head (62) on described fastener assembly (6) and described Metallic rod (7) are slidably matched, the centre that Metallic rod (7) encloses is provided with the vertical central insulation post (2) that one end is fixedly connected with described base, the periphery of described central insulation post (2) is wound with described swept resistance coil (3), each fastener assembly (6) is provided with clamp assembly (5) and the slide plate (4) be positioned at inside plastics feeler lever (1) that is positioned at plastics feeler lever (1) outside, described slide plate (4) directly contacts with described swept resistance coil (3), described top cover is respectively equipped with the resistance coil binding post (8) and Metallic rod binding post (9) that are connected with one end of swept resistance coil (3).

2. subterranean strata delaminating deposition measurement mechanism according to claim 1, it is characterized in that: described measurement mechanism also comprises power supply, divider resistance Rg, switch S and reometer A, the positive pole of power supply is connected with resistance coil binding post (8), and the negative pole of power supply is connected with each Metallic rod binding post (9) after reometer A respectively through resistance Rg, switch S successively.

3. subterranean strata delaminating deposition measurement mechanism according to claim 2, it is characterized in that: described fastener assembly (6) comprises the slide fastener (61) be fixedly connected in the line of rabbet joint and the pull head (62) be engaged on slide fastener, described slide plate (4) is fixed on the inner side of described pull head (62), and described clamp assembly (5) is fixed on the outside of described pull head (62).

4. subterranean strata delaminating deposition measurement mechanism according to claim 2, it is characterized in that: described clamp assembly (5) comprises T-shaped seat (51) and the arc (52) suitable with the periphery of plastics feeler lever (1), by being connected by the spring (53) compressed between T-shaped seat (51) with arc (52).