JP5274621B2 - Mixed rooting fluid sampling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mixed foot protection liquid sampling device capable of sampling an unconsolidated mixed foot protection liquid constructed in an excavated hole. <P>SOLUTION: A mixed foot protection liquid sampling device X includes: a main-body cylindrical body 11 which is coupled to a shaft end side of a screw shaft 107, and sections off a storage space KS and a reservoir space CS where the mixed foot protection liquid is reserved; a liquid introduction port 36 which is opened to inner and an outer peripheries of the main-body cylindrical body, and links the excavated hole and the reservoir space; an introduction opening/closing body 37 which is arranged along the inner periphery of the main-body cylindrical body, and opens and closes the liquid introduction port from inside the main-body cylindrical body; a liquid exhaust port 55 which is opened in the reservoir space, and exhausts the mixed foot protection liquid in the reservoir space; an exhaust opening/closing body which opens and closes the liquid exhaust port; a moving body 57 which is arranged in the storage space, and supported movably in an axial direction T of the main-body cylindrical body; and an energizing member 58 which is arranged in the storage space of the main-body cylindrical member, and energizes the moving body into the storage space, the moving body moving toward the storage space through the operation of working pressure against the energizing force of the energizing member. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to a method for stirring and mixing sand gravel and rooting liquid in a drilling hole to build a mixed rooting liquid in the drilling hole. It relates to the collection device.

In general, in foundation works for civil engineering and construction, foundation piles are buried (constructed) in the ground using the cement milk method.
As a cement milk construction method, the technique disclosed in Patent Document 1 forms a drilling hole in the ground and injects cement milk into the drilling hole. The cement milk injected into the drilling hole is composed of a fixing liquid and a filling liquid, and the fixing liquid is injected into the bottom side in the drilling hole. By the injection of the fixing liquid, a mixed rooting liquid in which the excavated gravel and the fixing liquid are mixed is built.
In the technique disclosed in Patent Document 1, after injecting cement milk, the foundation pile is inserted into the excavation hole and immersed in unconsolidated cement milk (mixed root hardening liquid, filling liquid). The foundation pile immersed in cement milk is fixed and buried in the ground by drying and solidifying the mixed root hardening liquid and filling liquid.

  However, in the technique disclosed in Patent Document 1, drying and solidification starts immediately after the mixed root-setting liquid is built in the excavation hole. Therefore, the mixed root-setting liquid is collected and the composition analysis of the mixed root-setting liquid is performed. There is a problem that the time for drying and solidifying the solidified solution cannot be accurately determined.

Japanese Patent Laid-Open No. 7-2168666

  The present invention provides a mixed root solids collection device capable of collecting unconsolidated mixed root solids built in an excavation hole and accurately determining the composition analysis, drying and solidification time of the mixed root solids. It is in.

  A first aspect of the present invention includes an auger head that is advanced and retracted into the ground and forms a drilling hole in the ground, and a screw shaft that is connected to the auger head and is advanced and retracted into the drilling hole. The rooting liquid is injected into the drilling hole from the auger head through the fluid passage, and the mixed rooting liquid is built in the drilling hole by stirring and mixing the gravel and the rooting liquid in the drilling hole by rotating the screw shaft. In the construction equipment to be mixed, the mixed root consolidation is connected to the shaft end side of the screw shaft from which the auger head has been removed, and the unmixed mixed root consolidation liquid is collected by being immersed in the mixed root consolidation liquid in the excavation hole. A main body cylinder that is a liquid sampling device and is connected to an axial end side of the screw shaft, and defines a storage space and a storage space for storing the mixed rooting liquid in an axial direction of the screw shaft, and the main body cylinder body A liquid introduction port that opens to the inner and outer circumferences and communicates with the excavation hole and the storage space, and an introduction opening and closing that is arranged along the inner circumference of the main body cylinder and opens and closes the liquid introduction port from the inside of the main body cylinder A body, a liquid discharge port that opens into the storage space of the main body cylinder, discharges the mixed root-setting liquid in the storage space, a discharge opening / closing body that opens and closes the liquid discharge port, and a main body cylinder A movable body that is disposed in the storage space and is supported so as to be movable in the axial direction of the main body cylinder, and is disposed in the storage space of the main body cylinder member, and urges the movable body in the storage space. The introduction opening / closing cylinder moves between a closing position for closing the liquid introduction port and an opening position for opening the liquid introduction port in the axial direction of the main body cylinder. (1) The movable body is located in the storage space of the main body cylinder. Connected to the introduction opening / closing cylinder, connected to the fluid passage of the screw shaft, and moved to the storage space side against the urging force of the urging member based on the operating pressure introduced from the fluid passage The introductory opening / closing cylinder is moved from the closed position to the open position as the moving body moves toward the storage space, and (2) the moving body has the operating pressure of the fluid passage. Based on the opening, the urging force of the urging member moves to the storage space side, and the introduction opening / closing cylinder is moved from the open position to the closed position based on the movement of the moving body toward the storage space. It is a mixed root solids collection device characterized by being moved to.

  According to a second aspect of the present invention, the main body cylinder includes a partition member that partitions the storage space and the storage space from an axial end side of the screw shaft, and a seal member that is disposed on the partition member, The movable body is inserted into the storage space through the partition member, is extended to the storage space, is connected to the introduction opening / closing cylinder in the storage space, and the seal member is in contact with the mobile body. The mixed rooting fluid collection device according to claim 1, wherein the storage space is sealed from the storage space.

  According to a third aspect of the present invention, a rooting liquid is injected into a drilling hole formed in the ground, and the gravel and the rooting liquid in the drilling hole are stirred and mixed to build a mixed rooting liquid in the drilling hole. In the construction method, a mixed root-setting liquid collecting device that collects the unmixed mixed root-setting liquid that is immersed in the mixed root-setting liquid in the excavation hole, and is movable forward and backward in the excavation hole, and is a storage space. And a main body unit that defines a storage space for storing the mixed root-setting liquid, a liquid inlet means that is open to the storage space and communicates with the excavation hole and the storage space, and is disposed in the storage space. Opening and closing means for opening and closing the liquid inlet means from within the main unit, liquid outlet means for opening the storage space and discharging the mixed rooting liquid in the storage space, and opening and closing the liquid outlet means Discharge opening and closing means for An actuator means is disposed in the space and connected to the introduction opening / closing means, and the introduction opening / closing means is a closed position for closing the liquid introduction port means, and an open position for opening the liquid introduction port means. And the actuator means moves the introduction opening / closing means from the closed position to the open position or from the open position to the closed position. .

  In Claims 1 and 2 according to the present invention, in an existing construction facility, a stirrer / mixer that stirs and mixes root-solidified powder and drilling water to generate the root-solidified liquid, and stores water used for the operating pressure. A water reservoir, a switching valve device connected to the stirring mixer and the water reservoir, a fluid passage in the screw shaft, and a hydraulic pump device connected to the switching valve device, the switching valve device Is connected to the fluid flow path and the stirring mixer, the fluid passage and the pre-water reservoir, or the fluid passage and the atmosphere, and the hydraulic pump supplies the root-solidified liquid of the stirring mixer to the fluid passage. It is possible to adopt a configuration that discharges the working pressure water that is discharged into the fluid passage or the fluid passage.

According to the first aspect of the present invention, the moving body is moved to the storage space side by the urging force of the urging member, and the introduction opening / closing body is set to the closed position. The main body cylinder is connected to the shaft end side of the screw shaft, and the screw shaft is advanced into the excavation hole, so that the mixed root-setting liquid collecting device is immersed in the unconsolidated mixed root-setting liquid. Subsequently, operating pressure is introduced from the fluid passage to the moving body, the moving body is moved to the storage space side, and the introduction opening / closing body is moved from the closed position to the open position. As a result, the unconsolidated mixed rooting liquid flows into the storage space from the liquid inlet and is stored in the storage space of the main body cylinder.
When the mixed root-setting liquid is stored in the storage space of the main body cylinder, the moving body is moved to the storage space side by the urging force of the urging member by releasing the operating pressure of the fluid passage, and the introduction opening / closing body is moved from the open position. Move to the closed position. Subsequently, the screw shaft is retracted from the excavation hole, so that the mixed root solids collecting device is retracted from the excavation hole. By opening the liquid discharge port by the discharge opening / closing body, the unconsolidated mixed root-setting liquid in the storage space is discharged, and the composition component of the mixed root-setting liquid or the time for drying and solidification is confirmed.
In this way, existing construction equipment can be used (utilized) to collect unconsolidated mixed root solidification liquid built in the excavation hole, and equipment to advance and retreat the mixed root solidification liquid sampling device into the excavation hole. There is no need to place it separately.
In the mixed rooting liquid collecting device, the storage space and the storage space are partitioned in the main body cylinder, and the moving body and the biasing member are arranged in the storage space, so even if the mixed rooting liquid is stored in the storage space, The mixed root-setting liquid can be prevented from flowing into the storage space and affecting the moving body and the biasing member, and the moving body and the biasing member can be prevented from being corroded by the mixed root-setting liquid.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the storage space can be reliably sealed from the storage space by the seal member and the partition member.

According to the third aspect of the present invention, the liquid introduction port means is closed by bringing the introduction opening / closing means to the closed position by the actuator means. The main unit enters the drilling hole and is immersed in the mixed rooting liquid in the drilling hole. Subsequently, by opening the introduction opening / closing means with the actuator means, the liquid introduction port means is opened, and the inside of the excavation hole and the storage space of the main unit are communicated. Thereby, the unsolidified mixed rooting liquid in the excavation hole flows into the storage space from the liquid inlet means and is stored in the storage space.
When the mixed root-setting liquid is stored in the storage space, the actuator unit moves the liquid introduction opening / closing means to the closed position, and then retracts the main unit from the excavation hole. Subsequently, the liquid discharge port means is opened by the discharge opening / closing means to discharge the unconsolidated mixed root-setting liquid in the storage space, and the composition component of the mixed root-setting liquid or the time for drying and solidification is confirmed.
In this way, after building the mixed root-setting liquid in the drilling hole, the mixed root-setting liquid sampling device can be immediately immersed in the mixed root-setting liquid in the drilling hole, and before drying and solidifying, the unsolidified mixed root-setting liquid (N) can be collected.
In addition, since the storage space and the storage space are divided into the main body unit and the actuator means is arranged in the storage space, even if the mixed rooting liquid is stored in the storage space, the actuator means is not affected by the mixed rooting liquid. It is possible to prevent corrosion and the like with the mixed root hardening liquid without receiving.

It is a side view which shows a mixed root hardening liquid sampling device. It is AA sectional drawing of FIG. 1, Comprising: It is a figure which shows the obstruction | occlusion position of an introductory opening / closing means, and the closed position of a discharge | release opening / closing means. In FIG. 2, it is a partial expanded sectional view which shows a partition member, a sealing member, and a moving body. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. 1, Comprising: It is a figure which shows the obstruction | occlusion position of an introductory opening / closing means. It is EE expanded sectional drawing of FIG. 1, Comprising: It is a figure which shows the closed position of a discharge opening / closing means. It is a FF expansion arrow line view of FIG. It is AA sectional drawing of FIG. 1, Comprising: It is a figure which shows the open position of the introductory opening / closing means and the close position of the discharge | release opening / closing means in a digging hole. It is AA sectional drawing of FIG. 1, Comprising: It is a figure which shows the obstruction | occlusion position of an introductory opening / closing means and the closed position of a discharge | emission opening / closing means in an excavation hole. It is a partial side view showing the mixed rooting liquid collecting device, and is a view showing a state where the lid opening / closing means is opened and the closed position of the discharge opening / closing means. It is a partial side view which shows a mixed root hardening liquid sampling device, Comprising: It is a figure which shows the state which opened the lid | cover opening / closing means, and the open position of a discharge | emission opening / closing means. It is EE expanded sectional drawing of FIG. 1, Comprising: It is a figure which shows the open position of a discharge opening / closing means. It is a side view which shows a mixed root solids collection device, Comprising: It is a figure which shows the state which opened the connection cylinder member of the main body cylinder. It is a side view which shows the pile construction machine of a pile construction facility. It is a principal part enlarged view which shows the procedure from the excavation by a pile construction equipment to the extraction of the mixed root-setting liquid by a mixed root-setting liquid collection device. It is a mimetic diagram showing composition of pile construction equipment. In a pile construction machine, it is an expanded longitudinal cross-sectional view which shows the joint shaft body of the screw shaft of a pile construction machine. In a pile construction machine, it is an expanded cross-sectional view which shows the coupling shaft body of the screw shaft of a pile construction machine.

  A mixed rooting fluid collecting apparatus according to the present invention will be described with reference to FIGS.

14 to 16, the mixed root-setting liquid collecting device (X) collects an unconsolidated mixed root-setting liquid (N) built in the excavation hole (H) in the ground (G).
The mixed rooting liquid sampling device (X) is connected to the existing pile construction equipment (Y) and uses (utilizes) the pile construction equipment (Y) to mix unsolidified mixed roots from the borehole (H). Collect the liquid (N).

  Hereinafter, for convenience of explanation, first, the configuration of the pile construction facility (Y) used (utilized) for collecting the mixed root hardening liquid (N) will be described with reference to FIGS. 14 to 18.

<Configuration of pile construction equipment (Y)>
13 to 16, the pile construction facility (Y) excavates and forms the excavation hole (H) in the ground (G), and the filling liquid (M) and the root hardening liquid (K) in the excavation hole (H). And a method of building a mixed root hardening liquid (N) by stirring and mixing the gravel (K) and the root hardening liquid (L) in the excavation hole (H).
The filling liquid (M) and the root hardening liquid (L) are cement milk produced by stirring and mixing cement powder and water. The mixed root hardening liquid (N) in the excavation hole (H) is obtained by stirring and mixing the excavated gravel (K) and the root hardening liquid (K) in the excavation hole (H). It is mixed cement milk built in [Expanded drilling hole (H1)]. Sand gravel (K) means clay such as sand, gravel or mud.

  As shown in FIGS. 14 to 16, the pile construction facility (Y) includes a pile construction machine (A), a stirring mixer (B), a water storage machine (C), a hydraulic pump machine (D), and a switching valve device. (E) is comprised.

As shown in FIGS. 14 and 15, the pile construction machine (A) excavates and forms a drilling hole (H) in the ground (G), and a filling liquid (M) and a root-solidifying liquid in the drilling hole (H). (L) is injected, and the gravel (K) and the root hardening liquid (L) in the drilling hole (H) are further stirred and mixed, and mixed into the enlarged drilling hole (H1) on the bottom side of the drilling hole (H). Build a solid solution (N).
The pile construction machine (A) builds the mixed root hardening liquid (N) in the excavation hole (H), and then allows the foundation pile (not shown) to enter the excavation hole (H), thereby excavating the hole (H). The foundation piles are fixed and embedded in the ground (G) by drying and solidifying the mixed root hardening liquid (N) and the filling liquid (M).

  As shown in FIG. 14, the pile construction machine (A) has an auger drive device (102) installed in the pile construction machine main body (101) and a screw for excavating and forming a drilling hole (H) in the ground (G). An auger (103) is included.

  As shown in FIG. 14, the auger drive device (102) includes an elevating mechanism (104) and a drive motor (105), and the elevating mechanism (104) supports the drive motor (105) so as to be movable up and down.

  As shown in FIGS. 14 and 15, the screw auger (103) includes an auger head (106), a screw shaft (107), and a joint shaft body (108). The auger head (106) is located in the ground (G). Excavation holes (H) are formed by excavation. The auger head (106) has a spout (not shown) for injecting drilling water (O), filling liquid (M) or rooting liquid (L) into the drilling hole (H).

As shown in FIGS. 14 and 15, the screw shaft (107) includes a screw blade (109), and the screw blade (109) is spirally extended in the axial direction (T) of the screw shaft (107). Yes.
The screw shaft (107) is formed of a steel pipe or the like, and forms a fluid passage (R) inside. The upper shaft end of the screw shaft (107) is connected to the drive motor (105) of the auger drive device (102), and the lower shaft end of the screw shaft (107) is connected to the auger head (106) so as to be removable. ing. The fluid passage (R) of the screw shaft (107) is connected to a jet port (not shown) of the auger head (106).

The joint shaft (108) is formed on the lower shaft end side of the screw shaft (107) as shown in FIGS. 14, 15, 17, and 18, and constitutes the lower shaft end side of the screw shaft (107). doing.
As shown in FIGS. 17 and 18, the joint shaft (108) includes a joint mounting hole (110), a plurality of joint side connection grooves (111), (111), and a plurality of joint side connection holes (112), The joint mounting hole (110) extends in the axial direction (T) of the joint shaft (108) continuously to the fluid passage (R). The joint mounting hole (110) is formed in a polygonal shape, for example, a hexagonal inner peripheral shape, and opens to the lower shaft end of the fluid passage (R) and the joint shaft body (108).

  As shown in FIGS. 17 and 18, the plurality of joint-side connecting grooves (111) and (111) are formed in the inner periphery of the joint mounting hole (110), and the width direction (U) perpendicular to the axial direction (T). Are arranged at intervals. Each joint side connection groove (111), (111) is extended in the front-back direction (V) orthogonal to the axial direction (T) and the width direction (U).

  As shown in FIGS. 17 and 18, the plurality of joint side connection holes (112) and (112) are formed continuously to the joint side connection grooves (111) and (111), and the joint shaft body (108). Is penetrated in the front-rear direction (V). Each joint side connection hole (112), (112) is opened to the outer periphery of the joint mounting hole (110) and the joint shaft body (108).

The pile construction machine (A) having the above configuration lowers the drive motor (105) and screw auger (103) to the ground (G) side by the lifting mechanism (104), and the screw auger (103) by the drive motor (105). By rotating, an excavation hole (H) is excavated and formed in the ground (G) by the auger head (106) and the screw shaft (107) (see FIG. 15 (a)).
The pile construction machine (A) injects the filling liquid (M) and the root hardening liquid (L) from the auger bed (106) into the excavation hole (H) through the fluid passage (R) in the screw shaft (107), By rotating the screw auger (103) with the drive motor (105), the screw blade (109) of the screw shaft (107) stirs and mixes the gravel (K) and the root hardening liquid (L) in the drilling hole (H). Then, the mixed root hardening liquid (N) is constructed in the enlarged excavation hole (H1) which is the bottom side of the excavation hole (H) (see FIG. 15B).
The pile construction machine (A) moves the auger head (106) back and forth to the ground (G) by moving the screw auger (103) up and down with the lifting mechanism (104), and the screw shaft (107) into the excavation hole (H). Move forward and backward.

  As shown in FIG. 16, the stirring mixer (B) stirs and mixes cement powder and water to generate a filling liquid (M) and a root hardening liquid (L). The stirring mixer (B) includes a cement silo, an injection pump, a mixer, and the like (not shown), and is connected to a fluid passage (R) of the pile construction machine (A) through a pipe (113).

As shown in FIG. 16, the water reservoir (C) is connected to the water source (F) and stores water supplied from the water source (F). The water storage machine (C) is connected to the stirring mixer (B) through the pipe (114), and the pipe (115) branched from the pipe (113) and the fluid passage ( R).
The water stored in the water storage machine (C) is used to generate the filling liquid (M) and the root hardening liquid (L) in the agitation mixer (B), and in the pile construction machine (A), the drilling water (O) And used as working pressure water (P: working pressure) of the mixed root solids collection device (X).

As shown in FIG. 16, the hydraulic pump machine (D) is arranged on the pile construction machine (A) side from the branch point (a) of the pipe (113), and through the pipe (113), the pile construction machine (A) and It is connected to the stirring mixer (B). The hydraulic pump machine (D) is connected to the water reservoir (C) through the pipe (113) and the pipe (115).
The hydraulic pump (D) sucks the filling liquid (M) or the root hardening liquid (L) from the stirring mixer (B) through the pipe (113), and fills the liquid (M) or the root hardening liquid (L) at a constant pressure. ) To the pipe (113) on the pile construction machine (A) side. The filling liquid (M) and the root hardening liquid (L) are introduced into the fluid passage (R) in the screw shaft (107) in the pile construction machine (A).
The hydraulic pump machine (D) sucks the stored water from the water storage machine (C) through the pipes (115) and (113), and supplies the constant pressure excavation water (O) and the working pressure water (P) to the pile construction machine. Discharge into the pipe (113) on the (A) side. Drilling water (O) and working pressure water (P) are introduced into the fluid passage (R) in the screw shaft (107) in the pile construction machine (A).

  As shown in FIG. 16, the switching valve device (E) is disposed at the branch point (a) of the pipe (113). The switching valve device (E) is composed of a three-way switching valve, and a hydraulic pump machine (D) and a stirring mixer (B), a hydraulic pump machine (D) and a water reservoir (C), or a hydraulic pump machine. (D) and switch to atmosphere. The fluid passage (R) of the pile construction machine (A) is connected to the stirring mixer (B), the water storage machine (C), or the atmosphere based on the switching operation of the switching valve device (E).

<Configuration of mixed root hardening liquid sampling device (X)>
Next, the configuration of the mixed root solids collection device (X) will be described with reference to FIGS.

  As shown in FIGS. 14 and 15, the mixed rooting fluid collecting device (X) is detachably connected to a joint shaft body (108: lower shaft end side) of the screw shaft (107), and an auger driving device ( 102) It is immersed in the mixed root hardening liquid (N) of the excavation hole (H), and an unconsolidated mixed root hardening liquid (N) is collected from the excavation hole (H).

In FIG. 1 to FIG. 7, the mixed rooting liquid collecting device (X) includes a main body unit (1), a lubrication introducing means (2), a liquid inlet means (3), an introduction opening / closing means (5), and a discharge opening / closing means ( 6) A liquid discharge means (7), an actuator means (8), a lid opening / closing means (9) and a pressure relief valve means (10).
In the mixed rooting fluid collection device (X), the main body unit (1) and the lid opening / closing body (9) are arranged continuously in the axial direction (T) as shown in FIGS. (9) constitutes the lower shaft end side of the mixed root solids collection device (X).

As shown in FIGS. 1 to 4, the main unit (1) is detachably connected to the joint shaft (108) of the screw shaft (107) and is stored in the axial direction (T) of the screw shaft (107). A storage space (CS) for storing the space (KS) and the unconsolidated mixed rooting liquid (N) is defined.
The main body unit (1) includes a main body cylinder (11) and a connecting shaft body (12). The main body cylinder (11) includes a main body cylinder member (14), a plurality of closing members (15), (16), A partition member (17), a seal member (18), and a connecting cylinder member (19) are included.

  The main body cylinder member (14) is formed in, for example, a cylindrical shape having both shaft end openings.

  The closing member (15) is formed in a disc shape, and closes the upper shaft end of the main body cylinder member (14) and is fixed to the main body cylinder member (14). A first insertion hole (20) is formed in the closing member (15). The first insertion hole (20) extends in the axial direction (T) of the main body cylinder (11) and opens into and out of the main body cylinder member (14).

  The closing member (16) is formed in a disk shape and is fixed to the main body cylinder member (14) by closing the lower shaft end of the main body cylinder member (14). A first discharge hole (21) is formed in the closing member (16). The first discharge hole (21) extends in the axial direction (T) of the main body cylinder (11) and opens to the inside and outside of the main body cylinder member (14).

  As shown in FIGS. 2 and 3, the partition member (17) is disposed in the main body cylinder member (14), and the storage space (KS) and the storage space (KS) are arranged in the axial direction (T) of the main body cylinder (11). CS). The partition member (17) is formed in a disk shape, is fixed along the inner periphery of the main body cylinder member (14), and seals the storage space (KS) from the storage space (CS). A second insertion hole (22) is formed in the partition member (17). The second insertion hole (22) extends in the axial direction (T) of the main body cylinder (11) and opens into the storage space (KS) and the storage space (CS).

  As shown in FIGS. 2 and 3, the seal member (18) is made of resin or synthetic rubber, and is disposed on the partition member (17). The seal member (18) is attached and fixed along the inner periphery of the second insertion hole (22) of the partition member (17), and protrudes into the second insertion hole (22).

As shown in FIG. 2, the connecting cylinder member (19) is formed in, for example, a cylindrical shape with both shaft end openings, and is arranged at the lower shaft end of the main body cylinder member (14). The connecting cylinder member (19) is rotatably attached to the main body cylinder member (14) by a hinge member (23), and opens and closes the first discharge hole (21) and the storage space (CS) of the closing member (16).
As shown in FIG. 1, the connecting cylinder member (19) is fixed to the main body cylinder member (14) by the fixing / opening mechanism (24) so as not to rotate in a state where the storage space (CS) is closed. 24), it can be rotated freely (see FIG. 13).
1 and 2, the connecting cylinder member (19) has a synthetic rubber packing (PK1), and the packing (PK1) is attached to the upper shaft end of the connecting cylinder member (19). It contacts the lower shaft end of the main body cylinder member (14).

  As shown in FIGS. 1, 2 and 4, the connecting shaft body (12) includes a connecting shaft member (25) and a connecting flange member (26), and the connecting shaft member (25) is polygonal, for example, six. It is formed in a square outer peripheral shape. The connecting shaft member (25) has a plurality of main body side connecting grooves (27), (27) and a sliding hole (28). The plurality of main body side connecting grooves (27), (27) are formed on the outer periphery of the connecting shaft member (25), and are arranged at intervals in the width direction (U). Each main body side connection groove (27), (27) extends in the front-rear direction (V) and penetrates the connection shaft member (25). The sliding hole (28) extends in the axial direction (T) of the connecting shaft body (12) and opens on both shaft end sides of the connecting shaft member (25).

  The connecting flange member (26) is integrally formed on the lower shaft end side of the connecting shaft member (15) and protrudes from the outer periphery of the connecting shaft member (25).

As shown in FIGS. 1 and 2, the main body unit (1) is configured by connecting a main body cylinder (11) and a connecting shaft body (12). The main body cylinder (11) and the connecting shaft body (12) are connected by fastening the closing member (15) and the connecting flange member (26) with a plurality of bolts (29). Thereby, the sliding hole (28) of the connecting shaft body (12) communicates with the storage space (KS) through the first insertion hole (20) of the closing member (15).
As shown in FIGS. 1, 2 and 4, the main unit (1) is detachably connected to a joint shaft body (108: lower shaft end side) of the screw shaft (107). The main unit (1) is connected by inserting the connecting shaft member (25) of the connecting shaft body (12) into the joint mounting hole (110) of the joint shaft body (108), and connecting each joint side connecting groove (111), (111) and the main body side connection grooves (27), (27) form a plurality of connection groove holes (30), (30). Subsequently, a plurality of fixed shaft members (31), (31) are prepared, and each fixed shaft member (31), (31) is connected to each joint side connection hole (112), (112) of the joint shaft body (108). And the main body unit (1) is connected and fixed to the joint shaft body (108) by being inserted into each of the connection slots (30) and (30). Thereby, as shown in FIG. 2, the sliding hole (28) of the main unit (1) communicates with the fluid passage (R), and the main unit (1) has a screw shaft in the axial direction (T). (108) A storage space (KS) and a storage space (CS) are partitioned from the lower shaft end side.

The lubrication introducing means (2) introduces a lubricant (lubricating oil, grease, etc.) into the storage space (KS), as shown in FIG.
The lubrication introduction means (2) includes a lubrication introduction shaft member (32) and a grease nipple (33), and the lubrication introduction shaft member (32) is disposed in the storage space (KS) of the main body cylinder (11). The lubrication introducing shaft member (32) is fixed to the partition member (17) and extends to the closing member (15) side in the axial direction (T).
The lubrication introduction shaft member (32) has a third insertion hole (34) and a lubrication passage (35), and the third insertion hole (35) includes the first and second insertion holes (20), (22), and The main body cylinder (11) extends in the axial direction (T) as a coaxial center with the sliding hole (28). The third insertion hole (34) is opened at the upper shaft end of the lubrication introduction shaft member (32) and communicates with the sliding hole (28) through the first insertion hole (20) of the closing member (15). The third insertion hole (34) opens at the lower shaft end of the lubrication introduction shaft member (32) and communicates with the storage space (CS) through the second insertion hole (22) of the partition member (17).

  The lubrication passage (35) is opened to the outer periphery of the third insertion hole (34) and the main body cylinder member (14) of the lubrication introduction shaft member (32), and the inside of the third insertion hole (34) is outside the main body cylinder member (14). Communicating with

  The grease nipple (33) is located on the outer peripheral side of the main body cylinder member (14) and is press-fitted into the lubrication passage (35).

  In the lubrication introducing means (2), a grease gun (not shown) is attached to the grease nipple (33), and the lubricant in the grease gun is injected from the grease nipple (33) into the lubrication passageway (35). The lubricant is filled into the third insertion hole (34) of the storage space (KS) from the lubrication passage (35).

The liquid inlet means (3) introduces (inflows) the mixed root hardening liquid (N) into the storage space (CS) from the excavation hole (H).
As shown in FIGS. 1, 2 and 5, the liquid inlet means (3) includes a plurality of liquid inlets (36), (36), and each liquid inlet (36), (36) It is formed in the main body cylinder member (14). Each liquid introduction port (36), (36) is disposed on the partition member (17) side of the main body cylinder member (14), and opens to the inner and outer circumferences of the main body cylinder member (14). Hole (H1)] and storage space (CS). As shown in FIG. 5, the plurality of liquid inlets (36) and (36) are formed at an angle of 180 degrees in the circumferential direction of the main body cylinder member (14).

The introduction opening / closing means (5) is disposed in the storage space (CS) and opens / closes the liquid introduction ports (36), (36) of the liquid introduction port means (3) from the inside of the main body cylinder member (14).
The introduction opening / closing means (5) includes an introduction opening / closing body (37) and a plurality of seal members (38), (38), as shown in FIGS. 37) includes an introductory opening / closing cylinder member (39), an opening / closing connecting shaft member (40), and a plurality of opening / closing connecting members (41), (41).

The introduction opening / closing cylinder member (39) is formed in, for example, a cylindrical shape having both axial end openings, and is disposed in the storage space (CS) of the main body cylinder (11).
The outer diameter dimension of the introduction opening / closing cylinder member (39) is set to be smaller than the inner diameter dimension of the main body cylinder member (14).
The introduction opening / closing cylinder member (39) is disposed along the inner periphery of the body cylinder member (14) with the axis of the introduction opening / closing cylinder member (39) aligned with the axis of the body cylinder member (14). The main body cylinder (11) is slidable (movable) in the axial direction (T).
The sliding range (movement range) of the introduction opening / closing cylinder member (39) is set between the closing member (16) and the partition member (17) in the storage space (KS), and the introduction opening / closing cylinder member (39) In the direction (T), a closed position (Q1: see FIGS. 1 and 2) for closing the liquid inlets (36) and (36), and an open position for opening the liquid inlets (36) and (36). (Q2: see FIG. 8).
In the closed position (Q1), the upper shaft end of the introduction opening / closing cylinder member (39) abuts on the partition member (17) to restrict sliding (moving) upward in the axial direction (T). The inlets (36) and (36) are closed.
In the open position (Q2), the lower shaft end of the introduction opening / closing cylinder member (39) is in contact with the closing member (16) to restrict the downward sliding (movement) in the axial direction (T). The introduction ports (36) and (36) are opened.

  As shown in FIGS. 2 and 5, the opening / closing connecting shaft member (40) is positioned in the introduction opening / closing cylinder member (39), and the shaft center of the opening / closing connection shaft member (40) is introduced into the opening / closing cylinder member (39). It is arranged so as to coincide with the axis.

The plurality of opening / closing connecting members (41), (41),... Are arranged in the introduction opening / closing cylinder member (39). Each end side of each open / close connecting member (41), (41),. As shown in FIG. 5, the open / close connecting members (41), (41)... Are arranged at an equal angle of 90 degrees in the circumferential direction of the introducing open / close cylindrical member (39). Liquid flow ports (43), (43),... Are formed between (41), (41),.
Each of the open / close connecting members (41), (41)... Has a liquid circulation hole (44), and the liquid circulation hole (44) is penetrated in the axial direction (T) of the main body cylinder (11). .

  The plurality of seal members (38) and (38) are configured as rings made of ultra high molecular resin or synthetic rubber, and as shown in FIGS. 2 and 5, the inner periphery of the main body cylinder member (14) and the introduction opening / closing cylinder It arrange | positions between member (39) outer periphery. The seal members (38) and (38) are disposed so as to surround the liquid introduction ports (36) and (36), and are attached and fixed to the inner periphery of the main body cylinder member (14).

In the introduction opening / closing means (5), the dimension in the axial direction (T) of the introduction opening / closing cylinder member (39) is the dimension in the axial direction (T) of each seal member (38), (38), and each liquid inlet ( 36) and (36) are set larger than the dimension in the axial direction (T). Accordingly, the introduction opening / closing cylinder member (39) of the introduction opening / closing cylinder (37) is moved in the axial direction (T) of the main body cylinder (11) while being in sliding contact with the seal members (38), (38). .
Further, at the closed position (Q1), the entire circumference of each of the seal members (38), (38) is in contact with the outer periphery of the introduction opening / closing cylinder member (39) and cooperates with the introduction opening / closing cylinder member (39). The mouths (36) and (36) are closed (see FIGS. 1 and 2).
Furthermore, in the open position (Q2), the lower end side of each seal member (38), (38) is in contact with the outer periphery of the introduction opening / closing cylinder member (39), and the liquid introduction ports (36), (36) are opened. Open (see FIG. 8).

The discharge opening / closing means (7) opens and closes the liquid discharge port means (8).
As shown in FIGS. 1, 2, 6, and 7, the discharge opening / closing means (7) is disposed in the connecting cylinder member (19) of the main body cylinder (11) and includes a discharge opening / closing body (42). ing.
The discharge opening / closing body (42) includes a discharge opening / closing cylinder member (45), a plurality of closing members (46), (47), a discharge opening / closing shaft member (48), a support shaft member (49), and an operation member (50). Consists of.

As shown in FIGS. 2 and 6, the discharge opening / closing cylinder member (45) is formed in, for example, a cylindrical shape having both shaft end openings, and is disposed in the communication cylinder member (19). The discharge opening / closing cylinder member (45) extends in the axial direction (T) of the main body cylinder (11), and the lower shaft end side of the discharge opening / closing cylinder member (45) protrudes from the connecting cylinder member (19). .
As shown in FIGS. 2 and 6, the discharge opening / closing cylinder member (45) has a liquid outlet (51), and the liquid outlet (51) is located on the lower shaft end side of the discharge opening / closing cylinder member (45). It is located and opens to the inner periphery of the discharge opening / closing cylinder member (45).

  As shown in FIG. 2, the closing member (46) is disposed in the connecting cylinder member (19), and closes the upper shaft end of the connecting cylinder member (19) and the upper shaft end of the discharge opening / closing cylinder member (45). ing. The closing member (46) and the discharge opening / closing cylinder member (45) are fastened and fixed to the connecting cylinder member (19) with a plurality of bolts (52), (52). The closing member (46) has a second discharge hole (53), and the second discharge hole (53) communicates with the inside of the storage space (CS) through the first discharge hole (21) of the closing member (16). Yes.

  The closing member (47) closes the lower shaft end of the discharge opening / closing cylinder member (45) and is fixed to the discharge opening / closing cylinder member (45). As shown in FIG. 7, the closing member (47) has a guide hole (54), and the guide hole (54) is located at the axial center of the discharge opening / closing cylinder member (45), and the main body cylinder (11). ) In the axial direction (T). The guide hole (54) communicates the inside and outside of the discharge opening / closing cylinder member (45).

  As shown in FIG. 2, the discharge opening / closing shaft member (48) is disposed in the discharge opening / closing cylinder member (45), and in the axial direction (T) of the main body cylinder (11), each closing member (46), ( 47). The axis of the discharge opening / closing shaft member (48) coincides with the axis of the discharge opening / closing cylinder member (45), and the discharge opening / closing shaft member (48) is rotatable about the axis.

  As shown in FIGS. 2 and 6, the support shaft member (49) is configured so that the shaft center of the support shaft member (49) is aligned with the shaft center of the discharge opening / closing shaft member (48). It is fixed to. The support shaft member (49) extends in the axial direction (T) of the main body cylinder (11) and protrudes outside the discharge opening / closing cylinder member (45) through the guide hole (54) of the closing member (47).

  As shown in FIGS. 1, 2, and 7, the operation member (50) is fixed to the support shaft member (49) outside the discharge opening / closing cylinder member (45). The operation member (50) extends in the front-rear direction (V) orthogonal to the axial direction (T) of the main body cylinder (11).

The liquid outlet means (8) discharges the mixed root hardening liquid (N) in the storage space (CS).
As shown in FIGS. 1, 2, and 6, the liquid discharge port means (8) includes a liquid discharge port (55) and a liquid discharge passage (56), and the liquid discharge port (55) discharges. An opening / closing shaft member (48) is formed. The liquid discharge port (55) is located on the lower shaft end side of the discharge opening / closing shaft member (48) and is open to the outer periphery of the liquid discharge opening / closing shaft member (48). The liquid discharge port (55) is arranged at a position communicating with the liquid outlet (51) of the discharge opening / closing cylinder member (45).

  The liquid discharge passage (56) is formed in the discharge opening / closing shaft member (48) and communicates with the liquid discharge port (55). The liquid discharge passage (56) extends in the axial direction (T) of the main body cylinder (11), and the first and second discharge holes (21), (53) of the closing members (16), (46). Through the storage space (CS).

  In the discharge opening / closing means (6) and the liquid discharge port means (7), by rotating the operation member (50), the discharge opening / closing shaft member (48) closes the liquid discharge port by the discharge opening / closing cylinder member (45). Closed position (S1: see FIG. 1, FIG. 6 and FIG. 10) and open position (S2: FIG. 11 and FIG. 12). Thus, the discharge opening / closing means (6) opens and closes the liquid discharge port (55) of the liquid discharge port means (7).

The actuator means (8) is disposed in the storage space (KS) of the main unit (1), and slides (moves) the introduction opening / closing means (5) between the closed position (Q1) and the open position (Q2).
The actuator means (8) uses (uses) the working pressure water (P) introduced into the fluid passage (R) of the pile construction machine (A), and introduces the opening / closing cylinder member (37) of the introduction opening / closing means (5). ) Is slid (moved).

  As shown in FIG. 2, the actuator means (8) includes a moving body (57), an urging member (58), and a plurality of seal members (59), (59). The moving body (57) In the connecting shaft body (12) and the storage space (KS). The moving body (57) includes a sliding piston member (60) and a connecting piston member (61).

  The sliding piston shaft member (60) is disposed in the sliding hole (28) so as to be slidable (movable) in the axial direction (T) of the main unit (1), and the first insertion of the closing member (15). It extends in the 3rd penetration hole (34) through the hole (20).

The connecting piston shaft member (61) is formed with a reduced diameter from the lower shaft end of the sliding piston shaft member (60) in the third insertion hole (34) of the storage space (KS). The connecting piston shaft member (61) extends in the storage space (CS) through the second insertion hole (22) of the partition member (17) in the axial direction (T).
As shown in FIGS. 2 and 3, the connecting piston shaft member (61) is slidably contacted with the seal member (18) in the second insertion hole (22) of the partition member (17). .
Thereby, the 2nd penetration hole (22) of a partition member (17) is closed with a connection piston member (61) and a seal member (18), and a seal member (18) is a connection piston member of a movable body (57). (61) is contacted, and the storage space (KS) is sealed from the storage space (CS).

As shown in FIGS. 2 and 4, the connecting piston member (61) is opened / closed by aligning the axis of the connecting piston shaft member (61) with the axis of the opening / closing connecting shaft member (40) of the introduction opening / closing means. It is connected to the shaft member (40).
Accordingly, the connecting piston shaft member (61) is connected to the introduction opening / closing cylinder member (39) by the opening / closing connection shaft member (40) and the plurality of opening / closing connection members (41), (41).

  The urging member (58) is constituted by, for example, a coil spring, and is arranged on the outer periphery of the connecting piston member (61) as a coaxial center with the moving body (57) in the third insertion hole (34) of the storage space (CS). . The biasing member (58) is in contact with the lower shaft end of the sliding piston shaft member (60) and the partition member (17), and biases the moving body (57) into the storage space (KS).

  The plurality of seal members (59) and (59) are made of resin or synthetic rubber O-rings, and are fixedly attached to the outer periphery of the sliding piston shaft member (60) at intervals in the axial direction (T). Yes. Each of the seal members (59) and (59) is brought into contact with the slide hole (28) of the connecting shaft body (12) to seal the slide hole (28) and the storage space (CS) from the fluid passage (R). doing.

In the actuator means (8), the moving body (57) moves to the storage space (CS) side against the urging force of the urging member (58) based on the action of the working pressure water (P). The introduction opening / closing cylinder member (39) of the introduction opening / closing cylinder (37) is moved to the open position (Q2) side with the movement of the moving body (57) to the storage space (CS) side. At this time, the introduction opening / closing cylinder member (39) connects the coupling piston shaft member (61) to the shaft center of the opening / closing coupling shaft member (49), and the introduction opening / closing cylinder member (39) is spaced apart from each other at an equal angle. Since it is connected to the connecting piston shaft member (61) via the open / close connecting members (41), (41),..., It is moved in the axial direction (T) of the main body cylinder (11) without being inclined. .
The moving body (57) moves to the storage space (KS) side by the urging force of the urging member (58) based on the release of the working pressure water (P) to the atmosphere, and the introduction opening / closing cylinder member (39) As the moving body (57) moves on the storage space (KS) side, it is moved to the closed position (Q1) side.

The lid opening / closing means (9) covers and houses the discharge opening / closing cylinder member (45) and the operation member (50) of the discharge opening / closing means (6), or exposes the discharge opening / closing cylinder member (45) to the outside.
As shown in FIGS. 1 and 2, the lid opening / closing means (9) includes a lid member (62), and the lid member (62) is a hemispherical shape protruding in the axial direction (T) of the main body cylinder (11). Is formed.
The lid member (62) is disposed with its open end facing the lower shaft end of the connecting cylinder member (19). The lid member (62) is attached to the connecting cylinder member (19) so as to be rotatable by a hinge member (63), and opens and closes the lower shaft end of the connecting cylinder member (19). Thus, the lower shaft side of the mixed root hardening liquid sampling device (X) is formed in a hemispherical shape by the lid member (61).
The lid member (62) has a packing (PK2) made of synthetic rubber, and the packing (PK2) is attached to the opening end of the lid member (62) and abuts on the lower shaft end of the connecting cylinder member (19). Is done.
As shown in FIG. 1, the lid member (62) covers and accommodates the discharge opening / closing cylinder member (45) in the state where the lower shaft end of the connecting member (19) is closed, and the fixing / release mechanism (64). It is fixed to the connecting cylinder member (19) as being unrotatable, and can be rotated by opening the fixing / releasing mechanism (64) (see FIG. 10).

As shown in FIG. 1, the pressure relief valve means (10) is disposed in the main body cylinder (11), opens the storage space (CS) to the atmosphere, and increases the pressure in the storage space (CS). It is a valve structure that makes pressure.
In the depressurization valve means (10), when the mixed rooting fluid collecting device (X) enters the drilling hole (H) and is immersed in the mixed rooting fluid (N), the pressure difference inside and outside the drilling hole (H) is increased. Arise.
In the enlarged excavation hole (H1) having a higher pressure than the outside of the excavation hole (H), the mixed root-setting liquid (N) is stored in the storage space (N) of the main body cylinder (11), and the mixed root-setting liquid sampling device After (X) is retreated from the excavation hole (H), when the liquid discharge port (55) of the liquid discharge port means (7) is opened by the discharge opening / closing means (9), the storage space ( There is a possibility that the mixed rooting liquid (N) stored in CS) is ejected vigorously from the liquid discharge port (55) and scattered outside the main body cylinder (11).
For this reason, the inside of the storage space (CS) is made atmospheric pressure by opening the inside of the storage space (CS) to the atmosphere by the pressure relief valve means (10). Thereby, the pressure relief valve means (10) prevents the mixed root-setting liquid (N) from spreading outside the main body cylinder (11), and can reliably collect the mixed root-setting liquid (N).

<Procedure for collecting mixed root hardening liquid (N)>
A procedure for collecting an unconsolidated mixed root hardening liquid (N) will be described with reference to FIGS.

<A> Excavation formation of excavation hole (H) to construction of mixed root hardening liquid (N) In the pile construction facility (Y), as shown in FIGS. 107) is connected to the lower end side (joint shaft: 108) of the auger head (106). The switching valve device (E) is switched to connect the hydraulic pump machine (D) and the water reservoir (C) as shown in FIG.
As shown in FIG. 14, the pile construction machine (A) drives the elevation mechanism (104) and the drive motor (105) of the auger drive device (102), and rotates the screw auger (103) while rotating the ground (G). Lower to the side. As the screw auger (103) rotates and descends, the hydraulic pump machine (D) is driven to introduce the drilling water (O) into the fluid passage (R) into the screw shaft (107).

  As shown in FIG. 15 (a), the screw auger (103) of the pile construction machine (A) has an excavation hole (H) in the ground (G) while injecting excavation water (O) from the auger head (106). Drilling forming. At this time, the auger head (106) enters the ground (G), the screw shaft (107) enters the excavation hole (H), and the gravel (K) excavated by the screw blade (109). The part is discharged outside the excavation hole (H).

Subsequently, in the pile construction facility (Y), as shown in FIG. 16, the switching valve device (E) is switched to connect the hydraulic pump (D) and the stirring mixer (B), and the filling liquid (M) is introduced into the fluid passage (R) of the pile construction machine (A).
With the introduction of the filling liquid (M), the pile construction machine (A) moves up and down while rotating the screw auger (103) by the elevating mechanism (104), and expands the excavation hole ( H1) is excavated.
Simultaneously with the formation of the enlarged excavation hole (H1), the filling liquid (M) is injected into the excavation hole (H) from the auger head (106), and the gravel ( K) and the filling liquid (M) are mixed with stirring. As shown in FIG. 15B, the filling liquid (M) is injected up to the opening side of the excavation hole (H).

Subsequently, as shown in FIG. 16, the hydraulic pump machine (D) sucks the root hardening liquid (N) from the stirring mixer (B), and uses the root hardening liquid (N) of the pile construction machine (A). It introduces into the fluid passage (R).
The pile construction machine (A) injects the root hardening liquid (N) from the auger head (106) into the enlarged excavation hole [H1: bottom side of the excavation hole (H)] with the introduction of the root hardening liquid (N). Then, the rotation of the screw auger (103) stirs and mixes the gravel (K) and the root hardening liquid (N) in the enlarged excavation hole (H1) to build a mixed root hardening liquid (N) (see FIG. 15 (b)). ).
The hydraulic pump machine (D) is stopped, the switching valve device (E) is switched, and the hydraulic pump machine (D) and the atmosphere are switched and connected. Thereby, the fluid passage (R) of the pile construction machine (A) is opened to the atmosphere.

<B> Collection of mixed rooting liquid (N) When the mixed rooting liquid (N) is built in the excavation hole (H), the pile construction machine (A) moves the screw auger (103) with the lifting mechanism (104). The auger head (106) and the screw shaft (107) are retreated from the excavation hole (H).
Subsequently, the auger bed (106) is removed from the screw shaft (107) of the pile construction machine (A), and the mixed root-setting liquid sampling device (X) can be detached from the joint shaft body (108) of the screw shaft (107). Connected and fixed (see FIGS. 1, 2 and 4).
As shown in FIGS. 1 and 2, the mixed rooting fluid collecting device (X) has the discharge opening / closing shaft member (48) positioned at the closed position (S 1), and the lid member (62) discharges the opening / closing cylinder member. (45) is covered and stored. In the mixed rooting fluid collecting device (X), the main body cylinder member (14) and the communication cylinder member (19) of the main body cylinder (11) are sealed with a synthetic rubber packing (PK1), and the communication cylinder member (19 ) And the lid member (62) are sealed with a synthetic rubber packing (PK2), and into the body cylinder (11) of the filling liquid (M) and mixed rooting liquid (N) in the excavation hole (H). Inflow.

As shown in FIG. 16, the fluid path (R) of the pile construction machine (A) is open to the atmosphere through the pipe (113), the hydraulic pump machine (D), and the switching valve device (E). As shown in FIGS. 1 and 2, the root-setting liquid collection device (X) urges the moving body (57) into the storage space (KS) by the urging force of the urging member (58).
Thereby, the introduction opening / closing cylinder member (39) of the introduction opening / closing means (5) is positioned at the closed position (Q1) for closing the liquid introduction ports (36), (36).

When the mixed rooting fluid collecting device (X) is connected, in the pile construction machine (A), the elevating mechanism (104) moves the screw shaft (107) and the mixed rooting fluid collecting device (X) into the excavation hole (X). As shown in FIG. 15 (c), the mixed root hardening liquid sampling device (X) is immersed in the mixed root hardening liquid (N) in the enlarged excavation hole (H1) which is the bottom side of the excavation hole (H). Let
Since the mixed rooting fluid sampling device (X) enters the excavation hole (H) from the hemispherical lid member (62) side, the resistance due to the filling liquid (M) in the excavation hole (H) is suppressed. While being immersed in the mixed root hardening liquid (N), the hemispherical filling liquid (M) of the lid member (62) is prevented from flowing vigorously and mixed with the mixed root hardening liquid (N).

When the mixed rooting fluid sampling device (X) is immersed in the mixed rooting fluid (N), the switching valve device (E) is switched in the pile construction facility (Y) as shown in FIG. A pump machine (D) and a water storage machine (C) are connected.
Subsequently, the hydraulic pump machine (D) is driven to introduce a constant pressure of working pressure water (P: working pressure) into the fluid passageway (R) of the pile construction machine (A). The hydraulic pressure (P1) of the working pressure water (P) is P1> F1 in relation to the urging force (F1: spring force) of the urging member (18: coil spring).

As shown in FIG. 8, the working pressure water (P) is introduced into the sliding hole (28) through the fluid passage (R), and is applied to the upper shaft end of the sliding piston shaft member (60) of the moving body (57). Works.
When each piston shaft member (60), (61) of the moving body (57) is subjected to the action of the working pressure water (P), the storage space (CS) side resists the biasing force of the biasing member (58). The introduction opening / closing cylinder member (39) of the introduction opening / closing cylinder (37) is axially moved along with the sliding (movement) of the moving body (57) toward the storage space (CS). It is moved from the closed position (Q1: see FIG. 2) to the open position (Q2: see FIG. 8) toward the closing member (16) of (T).
The introduction opening / closing cylinder member (39) and the moving body (57) are moved by the lower shaft end of the introduction opening / closing cylinder member (39) contacting the closing member (16) in the open position (Q2: see FIG. 8). Be regulated.

When the introduction opening / closing cylinder member (39) is moved to the open position (Q2), the liquid introduction ports (36) and (36) of the liquid introduction means (3) are opened and expanded as shown in FIG. Since the hole (H1) and the storage space (CS) communicate with each other, the mixed root hardening liquid (N1) in the enlarged excavation hole (H1) enters the storage space (CS) from each liquid inlet (36), (36). It flows in and is stored in the storage space (CS).
The mixed root-setting liquid (N1) that has flowed into the storage space (CS) passes through each liquid flow port (43) and each liquid passage hole (44) of the introduction opening / closing cylinder member (39), and enters the introduction opening / closing cylinder member (39). And then flows into the liquid discharge channel (56) through the first and second discharge holes (21) and (53).
At this time, since the liquid discharge port (55) communicating with the liquid discharge channel (56) is closed at the inner periphery of the discharge opening / closing cylinder member (45), the mixed rooting liquid (N) is supplied to the liquid discharge port ( 55) is not discharged to the lid member (62).
Further, since the storage space (KS) is hermetically partitioned from the storage space (CS) by the partition member (17) and the seal member (18), the mixed rooting liquid (N) flowing into the storage space (CS) is , Does not flow into the storage space (KS). Thus, the sliding piston shaft member (60) and the biasing member (58) disposed in the storage space (KS) are not corroded by the mixed root-setting liquid (N), and the movable body (57 ) Slides smoothly without being affected by the gravel and cement of the mixed root hardening liquid (N).
Since the third insertion hole (34) of the storage space (KS) is filled with a lubricant (lubricating oil, grease, etc.), the urging member (58) is covered with the lubricant to make it corrosion resistant. The moving body (57) is excellent in corrosion resistance and slides smoothly based on the lubricant.

When the mixed rooting liquid (N) is stored in the storage space (CS), as shown in FIG. 16, the hydraulic pump machine (D) is stopped and the switching valve device (E) is switched to operate the hydraulic pump. Connect machine (D) to atmosphere.
Thereby, the fluid passage (R) of the pile construction machine (A) is connected to the atmosphere through the pipe (113), the hydraulic pump machine (D) and the switching valve device (E), and is introduced into the fluid passage (R). The working pressure water (P) is released to the atmosphere.

When the working pressure water (P) in the fluid passage (R) is released to the atmosphere, the piston shaft members (60), (61) of the moving body (57) are urged (58) as shown in FIG. ) Is moved to the storage space (KS) side, and the introduction opening / closing cylinder member (39) is partitioned in the axial direction (T) as the moving body (57) moves to the storage space (KS) side. The member (17) is moved from the open position (Q2: see FIG. 8) to the closed position (Q1: see FIGS. 1 and 2).
When the introduction opening / closing body (37) is moved from the open position (Q2: see FIG. 8) to the closed position (Q1: see FIG. 9), the mixed root hardening liquid (N) stored in the storage space (CS) Receive resistance. In the storage space (CS), as shown in FIGS. 5 and 9, the mixed root-setting liquid (N) passes through each liquid flow port (43) and each open / close connection member (41) in the introduction open / close cylinder member (37). ) In the liquid circulation hole (44), the resistance of the mixed root hardening liquid (N) is reduced, and the introduction opening / closing cylinder member (39) is moved by the urging force of the urging member (58).
In addition, since each open / close connecting member (41) of the introduction opening / closing body (37) is arranged at an equal angle (90 degrees) in the circumferential direction of the introduction opening / closing cylinder member (39), the introduction opening / closing cylinder member (39) In the movement, the resistance of the mixed root hardening liquid (N) is evenly distributed in the circumferential direction of the introduction opening / closing member (39). Thereby, even if the introduction open / close cylinder member (39) receives the resistance of the mixed root hardening liquid (N), it is moved linearly without being inclined.
In the closed position (Q1), the upper shaft end of the introduction opening / closing cylinder member (39) abuts on the partition member (17) to regulate sliding and movement of the introduction opening / closing cylinder member (39) and the moving body (57). .
In the closed position (Q1), the entire circumference of each of the seal members (38), (38) abuts the outer periphery of the introduction opening / closing cylinder member (39), and each of the seal members (38), (38) and the introduction opening / closing cylinder member (39). ), The liquid inlets (36) and (36) are closed. Accordingly, the storage space (CS) is sealed from the enlarged excavation hole (H1) which is the bottom side of the excavation hole (H) (see FIGS. 1 and 2).

In the pile construction machine (A), as shown in FIG. 14, the screw shaft (107) and the mixed root hardening liquid sampling device (X) are lifted by the lifting mechanism (104) of the auger drive device (102), and the excavation hole (H) Evacuate from inside.
Since the mixed rooting liquid collecting device (X) closes the liquid inlets (36) and (36) in cooperation with the introduction opening / closing cylinder member (39) and the seal members (38) and (38). In the process of retreating from the excavation hole (H), the filling liquid (M) in the excavation hole (H) does not flow into the storage space (CS).

In the mixed rooting fluid collection device (X), as shown in FIGS. 1 and 10, the pressure relief valve means (10) opens the storage space (CS) to the atmosphere, and the pressure in the storage space (CS) is reduced. Set to atmospheric pressure.
In the mixed rooting fluid collection device (X), as shown in FIG. 10, the fixing opening mechanism (64) is operated and the lid member (62) of the lid opening / closing means (9) is rotated, whereby the discharge opening / closing means ( The discharge opening / closing cylinder member (45) and the operation member (50) of 6) are exposed from the lid member (62).
Subsequently, as shown in FIGS. 6 and 10 to 12, the discharge opening / closing shaft member (48) is opened from the closed position (S1: see FIGS. 6 and 10) by rotating the operation member (50). Rotate to position (S2: see FIGS. 11 and 12).
Accordingly, as shown in FIGS. 11 and 12, the liquid discharge port (55) of the discharge opening / closing shaft member (48) communicates with the liquid outlet (51) of the discharge opening / closing cylinder member (45), and the storage space ( CS is communicated to the outside of the mixed root solids collecting device (X) through the liquid discharge passage (56), the liquid discharge port (51), and the liquid discharge port (55).
The mixed root-setting liquid (N) stored in the storage space (CS) is taken out from the liquid discharge port (51) and the liquid outlet (55) to the outside of the mixed root-setting liquid sampling device (X), and mixed root-setting liquid. It is used for the sample for confirming the composition analysis of (N) and the time of drying and solidification.

<C> Cleaning of Mixed-Roots Liquid Collecting Device (X), etc. In the mixed-roots liquid collecting device (X), as shown in FIG. 13, by rotating the connecting tube member (19), the main body tube member (14 ) Lower shaft end can be opened.
Thereby, the storage space (CS) of the main body cylinder member (14) is communicated to the outside of the mixed root liquid collecting device (X), and washing water or the like can be directly introduced into the storage space (CS). Since the storage space (N) of (14) can be washed, when collecting different types of mixed root hardening liquid (N), various mixed root hardening without mixing with another mixed root hardening liquid (N) Liquid (N) can be collected.
Further, as shown in FIG. 13, the connecting cylinder member (19) is rotated to open the storage space (CS), and as shown in FIGS. 11 and 12, the lid member (62) is rotated to open and close the discharge. By exposing the cylindrical member (45) and opening the discharge opening / closing shaft member (48) to the open position (S2), the cleaning water enters the liquid discharge passage (56) from the upper shaft end of the discharge opening / closing connection shaft (56). In addition, cleaning water can be introduced into the liquid discharge passage (56) from the liquid discharge port (51) and the liquid outlet (55).
Furthermore, as shown in FIG. 13, by rotating the connecting cylinder member (19) and opening the lower shaft end of the main body cylinder member (14), the mixed rooting liquid (N) stored in the storage space (CS) ) Can be discharged directly from the mixed root-setting liquid sampling device (X), especially when the mixed root-setting liquid (N) is dried and solidified and becomes semi-fluid and mixed from within the storage space (CS). The root-setting liquid (N) can be discharged and also has the function of a discharge opening / closing means.

According to the mixed rooting fluid collecting device (X) having the above-described configuration, an unconsolidated mixed rooting fluid built in the excavation hole (H) using (utilizing) the existing pile construction equipment (Y). (N) can be collected, and there is no need to separately install equipment for advancing and retracting the mixed rooting fluid collection device (X) to and from the excavation hole (H).
In the mixed rooting fluid collection device (X), the storage space (KS) and the storage space (CS) are partitioned in the main body cylinder (11), and the moving body (57) and the biasing member are stored in the storage space (KS). Since (58) is arranged, the moving body (57) and the biasing member (58) are affected by the mixed root-setting liquid (N) even if the mixed root-setting liquid (N) is stored in the storage space (CS). It is possible to prevent corrosion and the like with the mixed root hardening liquid (N) without receiving.

  In the mixed rooting fluid collection device (X), the mixed rooting fluid (N) in the excavation hole (H) may be collected without using (utilizing) the existing pile construction equipment (Y). At this time, in addition to the pile construction machine (A) of the pile construction facility (Y), a dedicated lifting device for advancing and retracting the mixed rooting liquid sampling device (X) to the excavation hole (H) is prepared. 11) and can be realized by preparing a dedicated pipe for introducing the working pressure water (P) into the sliding hole (28), a dedicated hydraulic pump machine, and the like. As a result, after building the mixed root-setting liquid (N) in the excavation hole (H) with the pile construction facility (Y), the mixed root-setting liquid sampling device and the auger head need not be replaced. The solidified liquid collecting device (X) can be immersed in the mixed root solidified liquid (N) in the excavation hole (H), and the unconsolidated mixed root solidified liquid (N) can be collected quickly.

In the mixed rooting fluid collection device (X), the working pressure acting on the moving body (57) of the actuator means (8) can be working pressure oil or working pressure air.
In the mixed rooting fluid collection device (X), the actuator means (8) is not limited to the configuration of the moving body (57) and the biasing member (58) that slide with the operating pressure. The configuration of can be adopted. By disposing the electric motor in the storage space, connecting the ball screw to the electric motor, and further connecting the moving member of the ball screw to the discharge open / close cylinder member, the discharge open / close cylinder member can be moved between the closed position and the open position.

  In the mixed rooting liquid collecting device (X), the discharge opening / closing means (6) has a configuration in which the discharge opening / closing shaft member (48) is rotatable and the liquid discharge port (55) is opened / closed by the discharge opening / closing cylinder member (45). However, the present invention is not limited to this. For example, the discharge opening / closing cylinder member (45) may be rotatable with respect to the discharge opening / closing shaft member (48), and the discharge opening / closing shaft member (48) may be a connecting cylinder member. Fix to (19).

  In the mixed root hardening liquid sampling device (X), the numerical aperture of the liquid inlet (36) may be 1 or 3 or more. Three or more liquid inlets (36) are formed at equal angles in the circumferential direction of the main body cylinder member (14).

  In the auger head (106) of the pile construction facility (Y), the same structure as the connecting shaft body (12) of the main body unit (1) is formed, and it can be detached from the joint shaft body (108) of the screw shaft (107). It is preferable to connect as.

In the mixed rooting fluid collection device (X), as shown in FIG. 9, after the mixed rooting fluid (N) is stored in the storage space (CS), the mobile body is moved by the biasing force of the biasing member (58). The liquid inlets (36), (36) are closed by moving the introduction opening / closing cylinder member (39) and the introduction opening / closing cylinder member (39) from the open position (Q2) to the closed position (Q1). At this time, in the pile construction machine (A), in order to move the introduction opening / closing cylinder member (39) from the closed position (Q1) to the open position (Q2) in the fluid passage (R) of the screw shaft (107). Used working water has accumulated. Therefore, in order to move the introduction open / close cylinder member (39) from the open position (Q2) to the closed position (Q1), the biasing force (F1: spring force) of the biasing member (58) and the fluid passage (R) It is preferable that the relationship of the weight of the working water (W) accumulated in is such that F1> W.
Then, in the mixed rooting fluid collection device (X), in order to discharge the working water accumulated in the fluid passage (R), the joint shaft body (108) of the screw shaft (107) or the connecting shaft body (12) is used. It is possible to employ a configuration in which a switching valve (not shown) is arranged so that the fluid passage (R) of the screw shaft (107) can be switched and connected to the atmosphere side or the moving body (57) side based on the operation of the switching valve. As a result, by connecting the fluid passage (R) of the screw shaft (107) to the atmosphere side by operating the switching valve, the working water accumulated in the fluid passage (R) can be discharged, and the biasing member (58 The urging force (F1) of the moving body (57) and the introductory opening / closing cylinder member (39) from the open position (Q2) without considering the working water weight (W) accumulated in the fluid passage (R). An urging force that can move to the closing position (Q1) may be used. In particular, as the excavation hole (H) is deepened, the length in the longitudinal direction (T) of the screw shaft (107) becomes longer, so the weight of the working water accumulated in the fluid passage (R) of the screw shaft (107). (W) is also a lot heavy. When the fluid passage (R) is connected to the atmosphere side by the operation of the switching valve and the working water accumulated in the fluid passage (R) is discharged to the atmosphere side, the energization is performed even if the excavation hole (H) becomes deep. The introduction opening / closing cylinder member (39) can be moved from the open position (Q2) to the closed position (Q1) only by the urging force (F1) of the member (58).

  The present invention is suitable for collecting mixed rooting liquid built in a drilling hole.

X Mixed rooting fluid sampling device Y Pile construction equipment (construction equipment)
G ground H excavation hole L root consolidation liquid N mixed root consolidation liquid R fluid passage T axial direction KS storage space CS storage space Q1 closed position Q2 open position 11 main body cylinder 36 liquid inlet 37 inlet open / close body 42 discharge open / close body 55 liquid Discharge port 57 Moving body 58 Biasing member 106 Auger head 107 Screw shaft

Claims (3)

An auger head that advances and retreats to the ground and forms an excavation hole in the ground; and a screw shaft that is connected to the auger head and advances and retracts to the excavation hole, and is rooted from the auger head through a fluid passage in the screw shaft. In the construction equipment for injecting the solidified liquid into the excavation hole, stirring and mixing the gravel of the excavation hole and the root solidification liquid by the rotation of the screw shaft, and building the mixed root solidification liquid in the excavation hole,
The mixed root-setting fluid collecting device is connected to the shaft end side of the screw shaft from which the auger head has been removed, and is immersed in the mixed root-setting fluid in the excavation hole to collect the unconsolidated mixed root-setting fluid. And
A main body cylinder that is connected to the shaft end side of the screw shaft and defines a storage space in the axial direction of the screw shaft and a storage space for storing the mixed root-setting liquid;
A liquid introduction port that is open on the inner and outer peripheries of the main body cylinder and communicates with the excavation hole and the storage space; and is disposed along the inner circumference of the main body cylinder, and the liquid introduction port is disposed inside the main body cylinder. An opening and closing body that opens and closes from
A liquid discharge port that is opened in the storage space of the main body cylinder and discharges the mixed root-setting liquid in the storage space;
A discharge opening and closing body for opening and closing the liquid discharge port;
A movable body that is disposed in the housing space of the main body cylinder and is supported so as to be movable in the axial direction of the main body cylinder;
It is disposed in the storage space of the main body cylinder member, and includes a biasing member that biases the movable body into the storage space.
The introduction opening / closing cylinder is moved between a closing position for closing the liquid introduction port and an opening position for opening the liquid introduction port in the axial direction of the main body cylinder;
(1) The moving body is connected to the introduction opening / closing cylinder in the storage space of the main body cylinder, connected to the fluid passage of the screw shaft, and based on an operating pressure introduced from the fluid passage. , Moving toward the storage space against the biasing force of the biasing member,
The introduction opening / closing cylinder is moved from the closed position to the open position as the movable body moves toward the storage space,
(2) The moving body moves to the storage space side by the biasing force of the biasing member based on the release of the operating pressure of the fluid passage.
The mixed root-setting liquid collecting device, wherein the introduction opening / closing cylinder is moved from the open position to the closed position based on movement of the movable body toward the storage space. The main body cylinder is
A partition member that partitions the storage space and the storage space from the shaft end side of the screw shaft;
A seal member disposed on the partition member;
The moving body is
Inserted into the storage space through the partition member from the storage space, and connected to the introduction opening / closing cylinder in the storage space,
The mixed rooting fluid collection device according to claim 1, wherein the seal member abuts on the moving body to seal the storage space from the storage space. In the method of injecting root-setting liquid into the excavation hole formed in the ground, stirring and mixing the gravel of the excavation hole and the root-setting liquid, and building a mixed root-setting liquid in the excavation hole,
A mixed root-setting liquid collecting device for collecting the mixed root-setting liquid that has been immersed in the mixed root-setting liquid in the excavation hole and has not been consolidated;
A main body unit that is freely movable in and out of the excavation hole, and divides a storage space and a storage space for storing the mixed root hardening liquid;
Liquid inlet means that is open to the storage space and communicates with the excavation hole and the storage space;
An introduction opening / closing means disposed in the storage space and opening / closing the liquid introduction port means from within the main body unit;
Liquid discharge port means that is open to the storage space and discharges the mixed root-setting liquid in the storage space; and discharge opening / closing means that opens and closes the liquid discharge port means;
The actuator is disposed in the storage space, and includes actuator means connected to the introduction opening / closing means.
The introduction opening / closing means includes
Moved between a closed position for closing the liquid inlet means and an open position for opening the liquid inlet means,
The actuator means includes
The mixed rooting fluid collecting device, wherein the introduction opening / closing means is moved from the closed position to the open position or from the open position to the closed position.