JP6319938B2 - Pile construction management system - Google Patents

Description

  The present invention relates to a pile construction management system for managing construction of a pile using a management device having a depth recorder, a flow rate recorder, and management software at a construction site of the pile.

  There are several methods for constructing foundation piles (see “Background Technology” in Patent Document 1). For example, in the pre-boring expansion rooting method, a drill bit attached to the tip of a drilling rod of a drilling stirrer is rotated to drill to a predetermined depth to form a pile hole, and further, an expansion for an enlarged rooting bulb part An excavation part is formed, and in this expansion excavation part, the expanded cement cake and the excavated earth and sand are mixed and stirred to form an expanded root-clamping bulb part.

  When excavating pile holes for building ready-made piles in the ground, or when excavating pile holes in the ground and mixing soil and cement milk to form soil cement, excavating the pile holes Construction management is performed such as continuously measuring the depth and load current of the drill bit motor and adjusting the amount of drilling fluid and cement milk injected.

JP 2006-31866 A

  Due to earthquake-resistant counterfeiting incidents that occurred several years ago and increased awareness of compliance in recent years, the importance of managing construction records has increased, and it is common to measure construction conditions and store measurement results using measuring instruments. It has become to.

Although there has been a construction management system in the past, the following points have been problematic when used in actual construction.
(1) Not equipped with data conversion and display functions necessary for operation (2) Because the size and weight are both large, the installation location is specified and workability is poor (3) The device installation location is monitored during device operation Therefore, it is necessary to have at least one person. (4) The graph of the measured and recorded data cannot be confirmed in real time. (5) It is difficult to convert the measured data. (6) Not equipped with functions necessary for operation such as recording interruption function when piles are added

  Therefore, the present invention provides a pile construction management system that performs a review of the functions and performances of existing commercial measuring instruments and possesses functions and performances suitable for actual pile construction.

In the present invention, when the cement milk is supplied to the excavation hole formed by excavation by rotation of the excavator bit of the excavator agitator and the pile is constructed, the excavation depth , excavation speed, excavation bit drive current, cement milk and In a construction management system with a construction management system that measures pile construction data for water flow rate and inputs and displays this pile construction data , the excavation bit motor is stored for each pile number by the thumb rotary switch. Depth measurement and recording means for measuring and recording depth data related to the load current value of the work, and receiving and recording start / stop / interrupt operation command data from the wireless remote control unit held by the work commander, and the depth data transmission means for transmitting to the construction management apparatus, a flow rate measuring recording means for recording accumulated flow about flow of cement milk or water, the instantaneous flow rate is measured, Transmitting means for transmitting the amount data to the work management system,
It is characterized by comprising receiving means for receiving transmitted depth data and flow rate data, and construction management means having management software for graphing and displaying the received depth data and flow rate data.

  The present invention relates to a depth measurement recording means for measuring and recording depth data relating to excavation depth values during excavation and a load current value of the motor of the bit, a transmission means for transmitting the depth data to a construction management device, and cement milk. There was a flow measurement recording means to measure and record the flow rate data related to the flow rate and construction management means with management software to display the obtained depth data and flow rate data in a graph, so that it was in actual pile construction A pile construction management system with functions and performance can be obtained.

It is a general view showing an example of a pile construction management system of the present invention. It is a general view which shows the depth measurement recording means of the pile construction management system of this invention. It is a general view which shows the flow measurement recording means of the pile construction management system of this invention.

  As shown in FIG. 1, the pile foundation work to which the pile construction management system of the present invention is applied is to excavate the pile hole 2 with the excavator bit 3 by the excavator agitator 1 and to feed cement milk from the plant 4 into the pile hole 2. Place the pile while stirring. At that time, pile construction data such as excavation depth, excavation bit drive current, work timing, flow rate of fluid such as cement milk and water is measured and recorded, and pile construction management is performed based on this pile construction data.

  Depth recorder 5, depth sensor 6, current sensor 7, wireless remote control unit 8, transmission / reception means 9, flow meter 10, flow recorder 11, and management room 12 in order to obtain and transmit pile construction data 13.

  Electric power is supplied to the depth recorder 5 through a power cable 14, and a depth sensor 6 and an electric current sensor 7 for rotating the excavation bit 3 of the cutting stirrer 1 are connected. Further, the receiving means 9 receives data from the wireless remote control unit 8 held by the work commander. The data of the depth recorder 5 is wirelessly transmitted by the transmission means 9, and the wirelessly transmitted data is received by the reception means 9 on the construction management apparatus 13 side and input to the construction management apparatus 13 to perform pile construction management.

  More specifically, the depth recorder 5 displays the excavation depth measured by the excavation depth sensor 6, the load current of the excavator measured by the current sensor 7, and the number of markers input from the wireless remote control unit 8. Record the excavation depth, load current, and marker input status in time series (1 second interval). The switch-down information by the operator is wirelessly notified to the depth recorder 5 by the wireless remote control unit 8, and the measured excavation depth, load current and marker information are wirelessly communicated and displayed on a personal computer in real time.

  The data recorded in the depth recorder 5 can be transferred to a personal computer by wired communication, and the construction record can be stored and managed by a dedicated construction management software after construction.

The depth recorder 5 has the following functions.

Drilling depth measurement function: The drilling depth is calculated from the output of the depth sensor. It also has a depth correction function.
Excavation speed measurement function: The excavation speed is calculated from the measured excavation depth data.
Load current measurement function: The load current value is measured from the output of the waterproof clamp type CT.
Wireless remote control function: The following functions are realized by pressing a switch on the wireless remote control unit (operation side).
(1) Depth recorder main body, writing of 3 types of marker information to recorded data (2) Remote control of operation commands such as start / stop / interrupt of depth recorder main body (3) Confirmation of recording status of depth recorder main body PC Wireless communication function: Sends measurement data and other data wirelessly to a computer.
PC wired communication function: Time setting and confirmation of the depth recorder main body, and transfer (sucking) of recorded data are performed by a personal computer.
Clock function: Clocks the clock for time stamp of recorded data.
Recording function: Record start / stop time, pile number, excavation depth, load current, and marker information are recorded in the built-in memory.
Recording interruption function: Interrupts the recording operation. It can be resumed.
Operation function: Start / stop / interrupt recording and confirm the current time by operating a push button switch on the depth recorder main body.
Display function: Display excavation depth or excavation speed (switched by switch), load current, number of markers and current time (current time is only when the time confirmation button is operated).
Manual setting function: Set the initial depth value, depth correction coefficient, and pile number with the thumb rotary switch.
Storage function for each pile number: The excavation depth is stored for each pile number by the thumb rotary switch.
Backup function: When the power of the depth recorder main body is turned off, the recorded data and the clock time are held for a certain period by the battery built in the main body.

  In FIG. 3, the flow rate recorder 11 records the flow rate measurement value of the flow meter 10 that measures the flow rate. Based on the data measured by the flow meter 10, the instantaneous flow rate and integrated flow rate are calculated and displayed on the 7-segment LED on the device, recorded in time series (1-second intervals), and dedicated software via wired communication (Construction management software) displays the construction status in real time. This makes it possible to grasp the construction status from a remote location.

  The flow rate recorder 11 records the flow rate measurement value of the flow meter 10 that measures the flow rate of water or cement milk. The construction management device 13 displays construction data by performing wireless and wired communication with the flow rate recorder 11 described above.

  Further, the data recorded in the flow rate recorder 11 can be transferred to a personal computer by wired communication, and the construction record can be displayed by dedicated software after the construction.

  The flow recorder has the following functions.

Flow rate measurement function: Calculates the integrated flow rate and instantaneous flow rate from the information sent from the flow meter.
Display function: The integrated flow rate and instantaneous flow rate can be displayed, and the current time can be displayed by pressing the time confirmation button.
PC wired communication function: Performs time setting and confirmation of the flow rate recorder, measurement data communication, recording data initialization, and the like.
Recording function: Record accumulated flow rate, instantaneous flow rate, pile number, recording start / stop time, flow rate information in the built-in memory.
Recording interruption function: Recording is interrupted / resumed.
Clock function: It has a clock for time stamp of recorded data.
Manual setting function: The pile number (three digits) can be set by the thumb rotary switch.
Operation function: Recording start / stop / interruption and confirmation of the current time can be operated by push button switches.
Switching function: A flow switch can be switched by a select switch.
Backup function: When the power supply of the flow recorder main body is turned off, the data and clock time recorded by the battery built in the main body are held for a certain period.
Power supply function: Supplies power to the flow meter.

  The construction management device 13 is monitored and recorded by an ordinary notebook PC, but may be a tablet PC instead of the notebook PC. Tablet PCs are cheaper and lighter and more compact than notebook PCs, so they can be easily carried on-site, and there is no wasted keyboard, resulting in good workability.

1: Drilling stirrer 2: Pile hole 3: Drilling bit 4: Plant 5: Depth recorder 6: Depth sensor 7: Current sensor 8: Wireless remote control unit 9: Transmission / reception means 10: Flow meter 11: Flow recorder 12: Management room 13: Construction management device 14: Power cable

Claims (1)

When constructing a pile by supplying cement milk to the drilling hole formed by the rotation of the drill bit of the drilling stirrer, the depth of drilling, the drilling speed, the driving current of the drill bit, the flow rate of cement milk and water In a construction management system with a construction management device that measures pile construction data and inputs and displays this pile construction data,
The thumb rotary switch stores excavation depth for each peg number, depth data and records in the measurement relates to a load current value of the drill bit motor, the operation of the start, stop and suspend from work order's hand wireless remote control unit Depth measurement recording means for receiving and recording command data ;
Transmitting means for transmitting the depth data to the construction management device;
Flow rate measuring and recording means for measuring and recording the integrated flow rate and instantaneous flow rate for cement milk and water flow rate,
A transmission means for transmitting flow rate data to the construction management device;
Receiving means for receiving transmitted depth data and flow rate data;
A pile construction management system comprising construction management means provided with management software for graphing and displaying received depth data and flow rate data.

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