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1. 发明专利

JPS6373128A METHOD AND APPARATUS FOR MEASURING DYNAMIC SUPPORTING FORCE OF PILE 失效
公开(公告)号：JPS6373128A
公开(公告)日：1988-04-02
申请号：JP16990486
申请日：1986-07-21
申请人： UTO KAZUMA , JAPAN STEEL & TUBE CONSTR , JAPAN DEV & CONSTRUCTION
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI , KAWAMURA TAKUJI , NINOMIYA KOJI
IPC分类号： E02D13/06 , G01L5/00
摘要： PURPOSE:To compute dynamic supporting force efficiently, by measuring the acceleration of a pile with an accelerometer, integrating the values twice, computing the amount of displacement, computing the amount of penetration of the pile and the rebounding amount when the speed of the penetrating pile becomes zero, and operating the values. CONSTITUTION:The acceleration of a pile 1 when it is driven with a hammer is measured with an accelerometer 2. The acceleration signals are sampled in a sampling circuit 4 through an amplifier circuit 3. The result is stored in a memory 9 through an A/D converter circuit 8. An integrating circuit 10 integrates the acceleration signals, and a speed is computed and stored in a memory 11. An integrating circuit 12 integrates the speed signals, and the amount of displacement is computed and stored in a memory 13. A CPU 14 obtains the amount of displacement when the speed is zero. The amount of penetration (s) of the penetrating pile 1 and the rebounding amount (k) are computed based on the amount of displacement. The values of (s) and (k) are substituted into a linear wave equation in the CPU, and dynamic supporting force is computed.

2. 发明专利

JPS62180212A FITTING METHOD FOR DETECTOR 失效
公开(公告)号：JPS62180212A
公开(公告)日：1987-08-07
申请号：JP2210786
申请日：1986-02-05
申请人： JAPAN STEEL & TUBE CONSTR , UTO KAZUMA
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI
IPC分类号： G01B21/00 , G01C21/16 , G01P15/00
摘要： PURPOSE:To reduce the cost of an accelerometer and to improved load resistance and durability of a pile by interposing cushioning material between a material body and a detector of the accelerometer. CONSTITUTION:When the impact is given to the pile 1 in an arrow 8 direction, the motion of the pile 1 is transmitted to the detector 4 via the cushioning material 2b and converted into an electrical signal there and transmitted to a main body of an accelerometer measuring instrument via a lead wire 6 and recorded and calculated there. In other words, when a hammer 11a is dropped, since the impact is given to the tip of a pile 1a and the motional energy of the hammer 11a is transmitted to the pile 1, a time change of the acceleration of the pile 1a is detected by the detector 4 provided to a left tip part of the pile 1 via an adhesive 9 and the cushioning material 2b and the recording and arithmetic operation such as a double integral are performed by the main body of the accelerometer measuring instrument via the lead wire 6, by which a motional state of the material body can be known. In this way, the cost of the accelerometer is reduced and the load resistance and the durability of the pile, etc., can be improved.

3. 发明专利

JPS6230908A PILE-HEAD DISPLACEMENT MEASURING APPARATUS FOR PILE DRIVING 失效
公开(公告)号：JPS6230908A
公开(公告)日：1987-02-09
申请号：JP16851885
申请日：1985-08-01
申请人： JAPAN STEEL & TUBE CONSTR , UTO KAZUMA
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI
IPC分类号： G01B7/00 , G01B21/00 , G01C15/00 , G01C21/16
摘要： PURPOSE:To measure displacement of pile-heads easily and safely, by measuring acceleration of the pile-head for each driving stroke and obtaining the required value by double analogue integration. CONSTITUTION:Change of acceleration per each impact is measured with an accelerameter 1 attached on a pile-head setter 8. An output of this acceleration is modulated into an FM or an AM electric wave with a telemeter transmitter 2 attached to the pile-head setter 8 and it is transmitted to a telemeter-receiver 4 installed in a measuring area. In the receiver, the electric wave is received for converting it into the specified electric signal. A transient recorder 5 converts an analogue electric signal from the receiver 4 into a digital signal for recording. Next, an analogue integrator 6 makes double integration of the analogue output prom the recorder 5 for a deviation output. By this arrangement, penetration and rebound amounts necessary for a discrimination equation of dynamic holding force of pile can immediately be obtained. And, the deviation output from an analogue integrator 6 is plotted on an X-Y graph of a X-Y recorder 7.

4. 发明专利

JPH01321369A MEASUREMENT OF PENETRATION RATE AND DISPLACEMENT IN DRIVING PILE 失效
公开(公告)号：JPH01321369A
公开(公告)日：1989-12-27
申请号：JP15494288
申请日：1988-06-24
申请人： JAPAN STEEL & TUBE CONSTR , UTO KAZUMA , JAPAN DEV & CONSTRUCTION
发明人： UTO KAZUMA , MIYASHITA FUMIHIKO , OMORI HIROSHI , MIYAJI AKIHIKO , NINOMIYA KOJI
IPC分类号： G01P7/00 , E02D33/00 , G01P15/00
摘要： PURPOSE:To obtain a value very close to an actual value by integrating an acceleration data per driving of a pile being divided into first and second halves to perform a synthesization with separate corrections of reference axes of a speed data thus obtained separately. CONSTITUTION:An impact acceleration during the driving of a pile is measured with an accelerometer and is corrected by multiplying the results by a specified window in the second half of the entire measuring time and a speed data is obtained by integration. At a first step, an initial value of the speed is set as zero value and at a second step, a mean of the speed data is determined for about one-third of the second half. With the results as zero value, the respective speed data are corrected entirely. Then, these speed data are synthesized between the first half of the former data and the second half of the latter data at such a position that the speed reaches the minimum value to determine a penetration rate.

5. 发明专利

JPS6413409A METHOD FOR MEASURING STROKE PENETRATION DISPLACEMENT OF PILE BY ACCELEROMETER 失效
公开(公告)号：JPS6413409A
公开(公告)日：1989-01-18
申请号：JP16874787
申请日：1987-07-08
申请人： UTO KAZUMA , JAPAN STEEL & TUBE CONSTR , JAPAN DEV & CONSTRUCTION
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI , KAWAMURA TAKUJI , NINOMIYA KOJI
IPC分类号： G01B21/00 , G01P15/02
摘要： PURPOSE:To obtain a displacement value which is very close to a real value by correcting all acceleration data with a mean value and integrating them to find a speed, correcting all speed data while regarding such an axis that the mean value of the speed data is zero within a range wherein displacement is originally constant as a reference line, and weighting and integrating the data. CONSTITUTION:Mean values of every 5-6 pieces of acceleration data are found and their mean value is used as a reference axis to correct and integrate all the acceleration data, thereby obtaining a chart (a) of the speed. Here, the actual displacement is as shown in a figure (b) and the speed should be zero within a range R. The reference axis S which is parallel to the inclination of speed data within the range R as shown in a figure (c) and sets the mean value of the speed data within the range R to a zero point is found and all the speed data is corrected based upon this reference axis. Further, the speed data within the range R are multiplied by a coefficient 1-e N for weighing and then integrated to obtain the waveform of displacement extremely close to a real waveform (b).

6. 发明专利

JPS621922A MEASUREMENT OF DISPLACEMENT OF DRIVEN PILE 失效
公开(公告)号：JPS621922A
公开(公告)日：1987-01-07
申请号：JP24903585
申请日：1985-11-08
申请人： JAPAN STEEL & TUBE CONSTR , UTO KAZUMA
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI
IPC分类号： E02D1/02 , F02B3/06 , G01N3/40
摘要： PURPOSE:To exactly obtain the penetration and rebound amounts of a pile immediately by a method in which a change in acceleration when driving a pile is measured by an accelerometer attached to the pile, and the change of acceleration so measured is subjected to two times' integration in an integrator to calculate the amount of displacement. CONSTITUTION:An accelerometer 10 is attached to a pile, a change of acceleration is measured each time striking is applied by Diesel hammer, etc., and the measured values are sent out to an integrator 2. The output of acceleration is subjected to two times' integration in the integrator 10 and converted into displacement output, and the displacement output is sent out to a recorder 3. The signals of displacement from the integrator 2 are recorded on a paper by the recorder 3 and displayed. The penetration and rebound amounts of the pile can thus be exactly obtained immediately.

7. 发明专利

JPS61142216A Calculator for kinetic supporting capacity of pile being driven 失效
标题翻译：用于动力支持能力的计算机
公开(公告)号：JPS61142216A
公开(公告)日：1986-06-30
申请号：JP26063184
申请日：1984-12-12
申请人： Japan Steel & Tube Constr Co Ltd , Kazuma Uto
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OMORI HIROSHI
IPC分类号： E02D1/02 , E02D1/00 , E02D13/06
CPC分类号： E02D13/06
摘要： PURPOSE:To simply and quickly obtain the kinetic supporting capacity of a pile by a method in which an acceleration meter is attached to the head of a pile, and acceleration signals from the meter are sent to a computer center by FM or AM. CONSTITUTION:An acceleration measurer 20 consisting of an acceleration meter 21, a telemeter outgoing device 24, a DC power source 22, and a strain gauge 23 as needed is attached to the head of a pile. Acceleration signals of the pile head, measured by the meter 21, are modulated into FM or AM by the device 24 and sent to a computer center 30. In the center 30, the signals are received by a telemeter receiver 31, modulated into digital signals by a transient recorder 32, and put in a personal computer 33. In the computer 33, the acceleration of the pile head is integrated two times to obtain displacement, and the displacement is figured into an equation for calculating the kinetic supporting capacity of the pile to obtain the kinetic supporting capacity of the pile.
摘要翻译：目的：通过将加速度计附接到桩头的方法简单快速地获得桩的动力支撑能力，并将来自仪表的加速度信号通过FM或AM发送到计算机中心。构成：根据需要，由加速度计21，遥测仪输出装置24，直流电源22和应变仪23构成的加速度测量装置20附接到桩的头部。由仪表21测量的桩头的加速度信号由装置24调制成FM或AM并发送到计算机中心30.在中心30中，信号由遥测仪接收器31接收，被调制成数字信号通过瞬态记录器32放入个人计算机33中。在计算机33中，将桩头的加速度积分两次以获得位移，将位移计算为用于计算桩的动能支撑能力的方程式获得桩的动力支撑能力。

8. 发明专利

JPS61294095A HOLLOW STRUCTURE FOR UNDER-HIGHWAY-TUNNEL 失效
公开(公告)号：JPS61294095A
公开(公告)日：1986-12-24
申请号：JP24505285
申请日：1985-10-31
申请人： UTO KAZUMA , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： UTO KAZUMA , SAKURAGI MITSURU
IPC分类号： E02D29/05 , E21D11/04

9. 发明专利

JPS55129594A METHOD OF CONSTRUCTING TUNNEL UNDER HIGHWAY 失效
公开(公告)号：JPS55129594A
公开(公告)日：1980-10-07
申请号：JP3650879
申请日：1979-03-28
申请人： UTO KAZUMA
发明人： UTO KAZUMA
IPC分类号： E02D29/05 , E02B9/06 , E02F5/10 , E21D11/00 , E21D11/04 , F16L1/038

10. 发明专利

JPH034688B2 失效
公开(公告)号：JPH034688B2
公开(公告)日：1991-01-23
申请号：JP26063184
申请日：1984-12-12
申请人： NIPPON KOKAN KOJI KK , UTO KAZUMA
发明人： UTO KAZUMA , IWASHITA FUMIHIKO , OOMORI HIROSHI
IPC分类号： E02D1/02 , E02D1/00 , E02D13/06

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