Soil analyzer and penetrator

• US 4,726,239 A
• Filed: 02/09/1987
• Issued: 02/23/1988
• Est. Priority Date: 02/09/1987
• Status: Expired due to Term

• Current Assignee: Mcclelland Engineers Incorporated
• Original Assignee: Mcclelland Engineers Incorporated
• Inventors: Young, Alan G., Babb, Lowell V., Boggess, Ronald L.
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US07/013,749
• Time in Patent Office: 379 Days
• Field of Search: 73/866, 73/84
• US Class Current: 73/866
• CPC Class Codes: E02D 1/025 combined with sampling
• CPC Class Codes: G01N 2203/0098 Tests specified by its name, e.g. Charpy, Brinnel, Mullen
• CPC Class Codes: G01N 2203/0641 using optical, X-ray, ultraviolet, infrared or similar detectors
• CPC Class Codes: G01N 3/42 by performing impressions under a steady load by indentors, e.g. sphere, pyramid G01N3/54 takes precedence

Abstract

A soil analyzer and penetrator for driving into the ground, having a hydraulic ram with a longitudinal opening with a hollow tubing extending through the opening. A two-way chucking mechanism engages the outside of the tubing for driving the tubing into the ground and pulling the tubing from the ground. A coiling and straightening mechanism is positioned above the ram engaging the tubing for coiling the tubing as it is removed from the ground and straightening the tubing when it has been driven into the ground. A cone is connected to the bottom end of the tubing and may be of various types for measuring various ground parameters and inserting or removing materials into/from the ground.

Claims

1. A soil analyzer for driving into the ground comprising,

a hydraulic ram having a longitudinal opening therethrough,

a hollow tubing extending through the opening,

a two-way chucking mechanism connected to the ram and engaging the outside of the tubing for driving the tubing into the ground and pulling the tubing from the ground,

a coiling and straightening mechanism positioned above the ram engaging the tubing for coiling the tubing as it is removed from the ground and for straightening the tubing when it is being driven into the ground,

means connected to the ram for holding the ram against the ground, and

a cone connected to the bottom end of the tubing for being driven into the ground.

2. The apparatus of claim 1 including,

a tubular support member connected to the bottom of the ram surrounding the cone and lower end of the tubing for insertion into the surface of the ground for protecting the cone during penetration of hard ground surfaces.

3. The apparatus of claim 1 including, an anti-buckling support positioned in the ram opening and around the tubing for supporting the tube and it is driven downwardly.

4. The apparatus of claim 3 wherein the buckling support includes split tubes having a shoulder for engaging the ram.

5. The apparatus of claim 1 wherein the coiling and straightening mechanism includes four rollers with two of the rollers positioned on one side of the tubing and another two of the rollers positioned on the opposite side of the tubing.

6. The apparatus of claim 1 wherein the cone includes,

a load cell hollow body having frrst-and second strain gauge load cells,

a tip connected to the body for actuating the load cells for measuring the driving force on the cone top,

a sleeve connected to the second load cell whereby the first and second load cells measure the driving force on the tip and the second load cell measures both the driving force on the tip and the friction of the ground on the sleeve.

7. The apparatus of claim 6 including a cone angle measuring means connected to the body comprising,

a light source,

a photosensor,

a concave lens between the source and sensor, and

a ball movable on the concave lens and varying the amount of light transmitted to the sensor in proportion to the angle of the body.

8. The apparatus of claim 1 wherein the cone includes,

a body,

a sleeve telescopically engaging the inside of the body, said sleeve including sampling openings,

a tip connected to the sleeve, said tip pushing the sleeve into the body when the tip is driven into the ground, and said tip extending the sleeve out of the body for obtaining fluid samples when the cone is pulled upwardly.

9. The apparatus of claim 1 wherein the said analyzer is supported from a vehicle and the means for holding the ram aagainst the ground includes a plate connected to piston and cylinder means connected to the vehicle.