Soil Testing Machine

Description The NL5044X/001 is a table‑top single‑gang consolidation frame used to determine the long‑term consolidation characteristics of clays and other compressible soils under loads imposed by foundations and above‑ground structures. Settlement may occur even when the applied pressure is within the safe bearing capacity of the soil. The apparatus uses lever‑arm loading and can apply pressures up to 81 tons per square foot (approx. 8,800 kPa) on 50mm diameter specimens.

Multi‑functional Specimen Preparation and Testing System (Multi‑functional Consolidation Apparatus) Model BTU-CSA-3 Description This equipment is amulti‑functional specimen preparation and testing system (multi‑functional consolidation apparatus), modelBTU-CSA-3. It is mainly used for preparing homogeneous soil specimens and performing various consolidation tests. The system offers high‑precision control of stress and deformation conditions, with a high degree of automation.

Fully Automatic Soil Freezing Process Tester Model: BTU-FHA-1 Description Equipment name: Fully Automatic Soil Freezing Process Tester Model: BTU-FHA-1 Overview: Used to study temperature field changes, frost heave amount, frost heave force, and water migration during soil freezing. It can simulate frost heave under different temperature gradients and hydraulic heads. Suitable for frozen soil engineering, subgrade frost heave prevention research, etc. Core functions:

Rowe Consolidation Apparatus Model BTU-RCA-1 Description This equipment is aRowe consolidation apparatus, modelBTU-RCA-1, using a Rowe‑type consolidation cell. It can perform various consolidation tests, including standard consolidation (step loading‑unloading), CRS (constant rate of strain), CRL (constant rate of loading), back pressure saturation consolidation, long‑term creep consolidation (with real‑time pore pressure measurement), and an optional consolidation‑permeabili

KO Consolidation Apparatus Model BTU-STC-KO Description This equipment is a KO consolidation apparatus, modelBTU-STC-KO, used to determine thecoefficient of earth pressure at rest (K₀)of soil specimens with a diameter of Ø61.8 mm. The lateral pressure under no lateral strain conditions is measured using a pore pressure meter (or lateral pressure sensor). It is mainly used to study the compression characteristics of soil under lateral restraint, providing K₀ values for

Automatic Unconfined Compression Apparatus 1. Description This equipment is a Fully Automatic Unconfined Compression Apparatus (BTU-WXY series), including models WXY-1F, WXY-3F, and WXY-6F. It is mainly used for unconfined compressive strength testing in geotechnical engineering (i.e., uniaxial compression test without confining pressure). The apparatus enables fully automatic control, data acquisition, and processing throughout the test, real-time display of various curves,

Description This series of instruments is designed for unsaturated soil testing to determine the Soil‑Water Characteristic Curve (SWCC) – i.e., the relationship between matric suction and soil water content (volumetric water content, gravimetric water content, or degree of saturation). The apparatus uses the axis‑translation technique to precisely apply matric suction to the specimen by controlling air pressure, thereby obtaining a complete SWCC. It is widely used in

Description The BTU-PIA series contaminant isolation device is a laboratory apparatus designed for contaminant isolation and pressure loading in geotechnical research. It uses a diaphragm structure to physically isolate contaminants from the pressure loading system, preventing cross‑contamination and ensuring test safety and data accuracy. Three models are available (PIA‑1, PIA‑2, PIA‑3), differing primarily in maximum volume, suitable for various scales of contaminant

Fully Automatic Unsaturated Direct Shear Apparatus Description This equipment is a fully automatic unsaturated direct shear apparatus, models BTU-2U and BTU-2UM, used to determine the shear strength parameters of unsaturated soils under different suction conditions. It uses micro‑computer controlled automatic loading, is equipped with high‑precision sensors and an automatic bubble flushing device, and supports temperature control as an option. Main Features: Specimen size:

Resonant Column Testing System 1. Description The BTU-RCA-1 is a resonant column testing system that applies cyclic torsional force to a soil specimen to measure the dynamic elastic modulus, shear modulus, and damping ratio of soil under small strain conditions (10⁻⁶ ~ 10⁻⁴). The system uses electromagnetic excitation and is fully computer-controlled for cell pressure and dynamic torque. It can perform conventional triaxial consolidation of saturated soils as well as resonant

BTU-TTS Series Full Automatic Triaxial Testing System Description Master Loader Rigid twin‑column construction, stepper motor with worm gear drive, low noise and smooth operation. Built‑in upper/lower limit protection and overload protection (auto‑stop when axial force exceeds sensor range). Axial displacement measurement: optional 50 mm range (accuracy 0.003 mm) or 100 mm range (accuracy 0.1% FS). Axial force sensors: multiple ranges 0‑10/25/30/50/60/100 kN. Control modes:

1. Description The Fully Automatic True Triaxial Apparatus (multi-field coupling), model BTU-TTA series, is an advanced geotechnical testing system capable of applying independent stress control (open-loop and closed-loop) on three mutually perpendicular axes of a cubic specimen. It supports various triaxial tests on both saturated and unsaturated soils. Optional modules include permeability testing (constant head), bender element tests (P-wave and S-wave), and a temperature

Triple Rheological Direct Shear Apparatus BTU-TRA Series (TRA-1 / TRA-2 / TRA-3) Description This series consists of triple rheological direct shear apparatuses, models BTU-TRA-1, BTU-TRA-2, BTU-TRA-3, designed for simultaneous direct shear testing of three specimens, with particular suitability for rheological (creep) studies. The three models differ mainly in automation level and data acquisition method: BTU-TRA-1: Basic model, LCD display, no data acquisition BTU-TRA-2:

Lever‑type Unsaturated Direct Shear Apparatus Model BTU-DDS-1U Description This apparatus is a lever‑type unsaturated direct shear apparatus, model BTU-DDS-1U, specifically designed for shear strength testing of unsaturated soils. It uses a specialised unsaturated pressure cell and shear box, applies normal stress via lever loading, and controls matric suction using a ceramic disk and pore‑air pressure control system. Main features: Specialised pressure cell: applies net

Fully Automatic Consolidation Apparatus (Mechanical) Model BTU-1 Description This equipment is afully automatic consolidation apparatus (mechanical), modelBTU-1, used for one‑dimensional consolidation testing of soils. It automatically applies loads and acquires data to determine soil compressibility parameters (coefficient of compressibility av, rebound modulus Es, coefficient of consolidation Cv, pre‑consolidation pressure Pc, etc.). Main features: Good expandable control

Large-Scale Triaxial Apparatus For Coarse-Grained Soil 1. Description This is a high-performance, servo-controlled large-scale triaxial testing system specifically designed for static and dynamic triaxial testing of coarse-grained geomaterials, including gravels, rockfills, railway ballast, and dam construction materials. Conventional geotechnical equipment often cannot meet the testing requirements for these materials due to the presence of large particles. The system

Triaxial Apparatus 1. Description This equipment is aFully Automatic Triaxial Apparatus (BTU-TTS series), covering models TTS-1, 3, 6, 10, and 20. It is mainly used for triaxial compression tests in geotechnical testing, supporting standard test types such as Unconsolidated Undrained (UU), Consolidated Undrained (CU), and Consolidated Drained (CD). The system is equipped with high-precision volume controllers (cell/back pressure) and offers optional professional test modules

Four‑Unit Direct Shear Apparatus Models :BTU‑DDS‑4 / BTU‑DDS‑4A / BTU‑DDS‑4Q Description This series consists of four‑unit direct shear apparatuses used to determine the shear strength parameters (internal friction angle φ and cohesion c) of soils. Three models are available: · BTU‑DDS‑4: Basic four‑unit direct shear apparatus (manual recording or external meter reading). · BTU‑DDS‑4A: Four‑unit automatic data acquisition direct shear apparatus, equipped with a data logger