CN212301202U

CN212301202U - On-spot irrigation method test density tester

Info

Publication number: CN212301202U
Application number: CN202020786198.1U
Authority: CN
Inventors: 何险高; 汪凌
Original assignee: Jiangsu Provincial Institute Of Geological Engineering Investigation
Current assignee: Jiangsu Provincial Institute Of Geological Engineering Investigation
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-05
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a field irrigation method density test instrument, which comprises a transparent water storage barrel, a support, a flow meter, a water level measuring scale and a universal meter, wherein the support comprises a bottom plate, a support leg, a clamping block and a horizontal bubble, the clamping block is arranged outside the bottom plate, the horizontal bubble is embedded above the clamping block, the upper part of the water storage barrel is opened, the water storage barrel is arranged on the bottom plate, a water outlet pipe which passes through a base is arranged below the water storage barrel, a control valve and the flow meter are arranged on the water outlet pipe, the water level measuring scale is arranged at a pithead, the upper plane of the water level measuring scale is provided with the horizontal bubble, the lower plane of the water level measuring scale is provided with two unconnected electric wires, the other end of the electric wire is connected with the universal meter, the level of the water storage barrel can be adjusted, the flow meter can accurately measure the water yield, the water level measuring scale is arranged at the pithead, the level, the structure science, convenient operation, data are reliable, and work efficiency is high.

Description

On-spot irrigation method test density tester

Technical Field

The utility model belongs to the technical field of engineering check out test set, concretely relates to on-spot irrigation method test density tester.

Background

The geotechnical test is an important link of engineering geological investigation, and provides reliable physical and mechanical property indexes of soil for researching soil deformation mechanism and engineering geological property in engineering design and engineering geological investigation. The density of soil is one of the basic physical property indexes of soil. For general coarse-grained soil, irrigation is the most common density test method. When the water level test pit is used, a pit is dug and weighed in the contour line, the plastic film bag is tightly adhered to the bottom and the wall of the pit, the opening of the pit is opened after the plastic film bag is placed on the ground, the periphery of the opening of the pit is firmly pressed and fixed by a weight, the initial water level height in the water storage cylinder is recorded, a water injection pipe of the water storage cylinder is opened, water slowly flows into the plastic film bag in the test pit, the water level is observed, the water injection pipe is immediately closed when the water level is flush with the ground of the pit opening, and the water level height when the water; the product of the difference between the initial water level in the cylinder and the water level height when water injection is stopped and the cross section area of the water storage cylinder is the volume of the test pit; the ratio of the weight to the volume of the excavated soil is the density of the soil. In the test process, for judging the termination of water injection, a tester needs to be close to the ground to observe whether the water surface is flush with the ground of the pithead; because surface tension and the visual error of water, whether the manual observation surface of water flushes with pithead ground, have and waste time and energy, and test efficiency is low, and if the bottom surface unevenness, the water level slope in the water storage section of thick bamboo, the reading is inaccurate, and the human factor influence is great, needs rework many times after the error appears.

Disclosure of Invention

In order to solve the problem, the utility model discloses a field irrigation method test density tester, the structure science, convenient operation, data are reliable, and work efficiency is high.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a field irrigation method test density tester, includes transparent water storage bucket, support, flow meter, water level measurement chi, universal meter, the support includes bottom plate, supporting leg, screens piece, horizontal bubble, the supporting leg sets up in the bottom plate below, is equipped with the round hole in the middle of the bottom plate, the screens piece sets up in the bottom plate outside, horizontal bubble embedding screens piece top, water storage bucket top opening, water storage bucket are put on the bottom plate, and the below of water storage bucket is provided with the outlet pipe that passes the base round hole, is equipped with control valve and flow meter on the outlet pipe, water level measurement chi is put at the pithead, and the plane is equipped with the air level on the water level measurement chi, and the plane is equipped with two electric wires that do not communicate under the water level measurement chi, the universal meter is connected to the other.

As an improvement of the utility model, the supporting legs are four, evenly distributed.

As an improvement of the utility model, the supporting leg below is equipped with the fine setting screw.

As an improvement of the utility model, the water storage barrel is provided with scales.

As an improvement of the present invention, the number of the clamping blocks is four.

As an improvement of the utility model, the flow meter is a digital display flow meter.

As an improvement of the utility model, the electric wire passes through the sticky tape to be fixed at the level under the water level gauge.

The utility model has the advantages that:

a field irrigation method test density tester, can adjust the level of water storage bucket, the flow meter can accurately measure out the water yield, places the water level measurement chi at the pithead, ensures the pithead level, when treating the rising level pithead of water level, the switch-on of two broken ends electric wires in level ruler below, the universal meter pointer swing stops falling into water, the utility model discloses the structure science, convenient operation, data are reliable, work efficiency is high.

Drawings

Fig. 1 is a layout view of a water storage bucket according to the present invention;

fig. 2 is the connection schematic diagram of the water level measuring scale of the present invention.

List of reference numerals:

1. the water level measuring device comprises a water storage barrel, 2 parts of a support, 3 parts of a control valve, 4 parts of a flow meter, 5 parts of a horizontal bubble, 6 parts of a fine adjustment screw, 7 parts of a water outlet pipe, 8 parts of a water level measuring scale, 9 parts of a leveling bubble, 10 parts of an electric wire, 11 parts of a universal meter, 12 parts of a bottom plate, 13 parts of a supporting leg and 14 parts of a clamping block.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in figure 1, the density tester for field irrigation method test comprises a water storage barrel 1 with uniform diameter, a transparent plastic barrel is adopted, scales are arranged on the water storage barrel 1, a water outlet is arranged below the transparent plastic barrel, the stainless steel bracket 2 is provided with the bracket 2, the bracket 2 comprises a bottom plate 12, four supporting legs 13, clamping blocks 14 and horizontal air bubbles 5, the supporting legs 13 are arranged below the bottom plate 12, the four supporting legs are uniformly distributed and stably placed, the four supporting legs are arranged at the periphery of a pithead, fine adjusting screws 6 are arranged below the supporting legs 13, the bottom plate can be leveled (looking at the horizontal air bubbles 5 in four directions), the water surface in the water storage barrel 1 is ensured to be flat, the clamping blocks 14 can protect the water storage barrel and prevent the water storage barrel from sideslipping, a round hole is arranged in the middle of the bottom plate 12, the clamping blocks 14 are arranged outside the bottom plate 12, the horizontal air bubbles 5 are, a water outlet pipe 7 is connected with a water outlet at the lower part of the water storage barrel, and a control valve 3 and a flow meter 4 are arranged on the water outlet pipe 7.

When in use, the ground of the test pit at the selected test position is leveled, loose filling soil on the surface is removed, the ground with the diameter larger than that of the test pit is flatly shoveled at the selected test pit position, the size of the test pit is determined according to the maximum particle size of the soil, and the depth of the test pit is not larger than the depth of the stratum; drawing a pit mouth contour line above the determined test pit, digging the pit to the required depth in the contour line, loading the sample in the pit into a soil container while digging, and weighing the soil mass m_pAccurately measuring the water content to 10g, and measuring the water content of a representative soil sample; after the test pit is dug, tightly adhering a plastic film bag slightly larger than the volume of the test pit along the pit bottom and the pit wall, turning over the opening of the pit after the plastic film bag is placed on the ground, and firmly pressing and fixing the periphery of the opening of the pit by using a heavy object; placing a water level measuring scale 8 at the pithead to ensure the level of the orifice, placing the water storage barrel 1 and the bracket 2 above a test pit, and adjusting a fine adjustment screw 6 to ensure the balance of four corners so that horizontal bubbles in 4 directions are uniformly distributed in the pit; flow meter with digital display4, then open the control valve 3 to let the water flow slowly into the plastic film bag in the pit. When the water level rises to the leveling hole opening, two broken wires 10 below the leveling ruler are connected, the pointer of the universal meter 11 swings, the control valve 3 is immediately closed, the universal meter is kept still for 3-5 minutes, whether the pointer of the universal meter 11 swings back or not is observed, if the pointer swings back, the plastic film bag in the pit leaks, the plastic film bag needs to be replaced again, and the steps are repeated. And if the pointer of the multimeter 11 is stable and does not swing back, recording the final number of the digital display flow meter, and calculating the flow. And backfilling and tamping the test pit after the test is finished.

Calculating the formula:

V_p＝Q₁-Q₂ (2)

in the formula: v_pTest pit volume (cm)³)；

Q₁Initial reading of digital display instrument (cm)³)；

Q₂-reading at the end of the initial reading of the digital display (cm)³)。

A field irrigation method test density tester, can adjust the level of water storage bucket, the flow meter can accurately measure out the water yield, places the water level measurement chi at the pithead, ensures the pithead level, the electric wire passes through the sticky tape to be fixed at the plane under the water level measurement chi, when treating the rising level pithead of water level, the switch-on of two broken ends electric wire in level chi below, the universal meter pointer swing stops falling into water, the utility model discloses the structure science, convenient operation, data are reliable, and work efficiency is high.

The technical means disclosed in the present invention is not limited to the technical means disclosed in the above embodiments, but also includes the technical solution formed by combining the above technical features at will.

Claims

1. A field irrigation method test density tester is characterized in that: including transparent water storage bucket, support, flow meter, water level measurement chi, universal meter, the support includes bottom plate, supporting leg, screens piece, horizontal bubble, the supporting leg sets up in the bottom plate below, is equipped with the round hole in the middle of the bottom plate, the screens piece sets up in the bottom plate outside, horizontal bubble embedding screens piece top, water storage bucket top opening, water storage bucket are put on the bottom plate, and the below of water storage bucket is provided with the outlet pipe that passes the base round hole, is equipped with control valve and flow meter on the outlet pipe, water level measurement chi is put at the adit, and the plane is equipped with the level bubble on the water level measurement chi, and the plane is equipped with two electric wires that do not communicate under the water level measurement chi, the universal meter is connected to the other end of.

2. The field-watering test density tester according to claim 1, wherein: the supporting legs are four and are evenly distributed.

3. The field-watering test density tester according to claim 1, wherein: and fine adjustment screws are arranged below the supporting legs.

4. The field-watering test density tester according to claim 1, wherein: the water storage barrel is provided with scales.

5. The field-watering test density tester according to claim 1, wherein: the number of the clamping bit blocks is four.

6. The field-watering test density tester according to claim 1, wherein: the flow meter is a digital display flow meter.

7. The field-watering test density tester according to claim 1, wherein: the electric wire is fixed on the lower plane of the water level measuring ruler through an adhesive tape.