Double ring flowmeter | 13. "In situ testing code for rock and soil permeability in water conservancy and hydropower engineering - Part 1: Borehole water pressure test

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1. How to adjust Changzhou Shuanghuan flowmeter 2350c?

The adjustment steps for Changzhou Shuanghuan flowmeter 2350c are as follows.

1、 Check whether the installation of the flow meter in the shed is correct or not, and whether it is firmly connected to the pipeline.

2、 Check if the cable connection is correct and if the contact is good.

3、 Turn on the switch on the flowmeter, start the instrument rental mode, and enter the debugging mode.

4、 Select the appropriate debugging method based on the specific model and usage instructions of the flowmeter.

5、 Set the range and output signal parameters of the flowmeter according to actual needs.

6、 Perform real-time monitoring, adjust parameters until the expected measurement results are achieved.

2. Test methods for permeable bricks

The test methods for permeable bricks mainly include permeability test, strength test, and anti-skid test.

. Chain rock permeability test: permeability coefficient detection and pure measurement: permeability coefficient is a key indicator for measuring the permeability performance of permeable bricks. It can be tested through laboratory specialized equipment such as flow meters, pressure gauges, etc., or through on-site measurements such as double ring method, single ring method, etc. The specific experimental steps include preparing cylindrical specimens on three products, sealing, vacuuming, soaking, etc., and then using a measuring cylinder to record the amount of water flowing out for five minutes to calculate the permeability coefficient. Porosity detection: Porosity reflects the volume proportion of internal pores in permeable bricks. By measuring the volume and mass of th Double loop flowmeter

e brick, the pore volume can be calculated to obtain the porosity; Alternatively, by observing the cross-section of the brick under a microscope, the number of pores can be counted to calculate the porosity. Strength test: compressive strength testing: compressive strength is an important indicator for measuring the bearing capacity of permeable bricks. A pressure testing machine can be used to conduct compressive tests on bricks, record the pressure values at the time of failure, and calculate the compressive strength; Alternatively, on-site testing can be conducted using a flatbed truck to load test beams, observe the deformation and failure of the bricks, and evaluate their compressive strength. Flexural strength testing: Flexural strength is a measure of the destructive strength of permeable bricks when subjected to bending. The bending test equipment can be used for testing, recording the bending strain when the brick is damaged, and calculating the bending strength; It is also possible to evaluate the flexural strength of bricks by observing their deformation and failure under bending through on-site measurements. Anti slip test: The anti slip performance of permeable bricks is crucial for pedestrian safety. The anti slip test is usually conducted using a friction coefficient tester. Before the test, the surface of the test brick needs to be moistened with a water sprayer, and then the switch is released to make it slide across the brick surface. The reading on the dashboard is recorded to evaluate the anti slip performance of the permeable brick. 3.13. Code for in-situ testing of rock and soil permeability in water conservancy and hydropower engineering Part 1: Borehole water pressure test

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Double ring flowmeter | 13. "In situ testing code for rock and soil permeability in water conservancy and hydropower engineering - Part 1: Borehole water pressure test

1. How to adjust Changzhou Shuanghuan flowmeter 2350c?

2. Test methods for permeable bricks

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