Geotextile Dynamic Puncture Tester

The geotextile dynamic puncture tester is used to test the resistance of various geotextile materials to penetration by a steel cone dropped from a fixed height, characterizing the geotextile material's resistance to rockfall impact.

Application

It is used to test the penetration ability of various geomaterials to resist steel cones falling from a fixed height, so as to characterize the rock fall resistance performance of ten geomaterials.

Standard

JTG E50:  Test Methods of Geosynthetics for Highway Engineering

ISO/DIS 13433: Geosynthetics - Dynamic Perforation Test - Cone Drop Method (Draft International Standard)

GB/T17630: Geosynthetics - Dynamic Perforation Test - Cone Drop Method

Feature

High precision and excellent stability:  It can accurately simulate the perforation behavior of geotextiles under various adverse conditions, providing objective and accurate data support.

Simple and convenient operation: The equipment has a compact structure and is easy to maintain, providing users with stable and repeatable test results.

Wide range of applications: It can meet the geotextile testing needs of different fields and different types of applications.

Parameters

Accessoriess

Frame, steel cone free-fall device, clamping ring, measuring cone, transparent protective cover, and metal protective cover.

Test Procedures

The geotextile sample is horizontally clamped in the clamping ring, ensuring the sample is wrinkle-free.

A steel cone of a specified mass is allowed to fall freely onto the sample from a certain height (usually 500 mm).

After a hole is formed in the sample, a small, graduated conical probe is inserted into the hole to measure the degree of penetration.

The test results are recorded and analyzed.

FAQ

1. What is a Geotextile Dynamic Puncture Tester?

The Geotextile Dynamic Puncture Tester is a device used to evaluate the puncture resistance of geotextiles under dynamic loading conditions, simulating impacts from rocks, debris, or construction equipment.

2. How does the dynamic puncture test work?

The tester drops a weighted impact probe or applies a controlled dynamic force onto the geotextile sample. The puncture depth, force at failure, and sample deformation are recorded to assess the material’s resistance to sudden impacts.

3. What types of geotextiles can be tested?

It is suitable for woven, nonwoven, and knitted geotextiles used in road construction, embankments, drainage systems, erosion control, and landfill liners. Various sample sizes and thicknesses can be accommodated.

4. What parameters are measured during testing?

The tester measures puncture resistance (force required to puncture), maximum deformation, energy absorption, and failure mode. These parameters help predict the geotextile’s performance under real-world dynamic conditions.

5. Why is dynamic puncture testing important?

Dynamic puncture testing ensures geotextiles can withstand sudden impacts during installation or service, preventing tears, leaks, or structural failures. It helps manufacturers and engineers select appropriate materials for safety and long-term durability.