PATENT CLAIM ANALYSIS

Application Number: 15750539
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["405", "264000"]

Abstract:
A jet grouting method is capable of reducing an unnecessary portion (redundant portion) exceeding an effective wall thickness without narrowing a construction pitch, and capable of allowing easy mechanical control. A ground improvement structure including a plurality of ground improvement bodies is constructed through use of the jet grouting method. Each of the ground improvement bodies is constructed so as to have a sectional shape formed by a combination of different kinds of fan shapes having different radiuses. The sectional shape of the ground improvement body is a combination of at least two kinds of fan shapes. One of the kinds of the fan shapes corresponds to a fan shape with a smaller radius, and the other corresponds to a fan shape with a larger radius. The sectional shape of the improvement body has a minimum diameter portion formed of the fan shapes with the smallest radius and a maximum diameter portion formed of the fan shapes with the largest radius. When designing the ground improvement body, a central angle is determined from a fan shape having the smallest radius with respect to the effective wall thickness. When constructing the ground improvement body, a diameter thereof is controlled by stepwisely changing a rotation speed of the injection rod. At that time, a soil breaking achieved by an improving material injected at high pressure is monitored so as to check the diameter of the ground improvement body and the effective thickness thereof.

Claim (Index 1):
A jet grouting method for improving a ground to be treated, the method comprising:\n forming a ground improvement body by injecting an improving material into the ground via an injection rod while rotating the injection rod in the ground, the ground improvement body having a sectional shape which is a combination of different kinds of fan shapes having different radiuses, the ground improvement body being formed so as to have an effective wall thickness that is required in design thereof, wherein the sectional shape of the ground improvement body is a combination of at least two kinds of fan shapes, one of the two kinds corresponding to a fan shape having a smaller radius, and the other corresponding to a fan shape having a larger radius, wherein the different kinds of fan shapes are arranged in order by radius size in a longitudinal direction of the effective wall thickness while fan shapes having the smallest radius are arranged in a thickness direction of the effective wall thickness, and wherein the ground improvement body is formed so that: the effective wall thickness is 0.7 times a maximum diameter of the ground improvement body or smaller, the minimum diameter of the ground improvement body is 0.2 times to 0.8 times the maximum diameter thereof, and a/b is 0.9 or smaller, where a is a wall thickness coefficient that is obtained by dividing the effective wall thickness by the maximum diameter of the ground improvement body, and where b is a small-diameter coefficient that is obtained by dividing the minimum diameter of the ground improvement body by the maximum diameter.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 2.49515
- Patent Class: 405.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14916270', '16097929', '12047845', '15388432', '12392203']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7450699138107106
- 35 USC 102 Novelty (BERT): 0.4792249283800177
- Combined Prediction Score: 0.7184854152676413
- Mean Citation Score: 165.744966
- Max Citation Score: 180.2585
- Similarity Product: 129.23363464945555

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test