JP2021092078A - Boring machine for geological survey - Google Patents

Boring machine for geological survey Download PDF

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JP2021092078A
JP2021092078A JP2019223452A JP2019223452A JP2021092078A JP 2021092078 A JP2021092078 A JP 2021092078A JP 2019223452 A JP2019223452 A JP 2019223452A JP 2019223452 A JP2019223452 A JP 2019223452A JP 2021092078 A JP2021092078 A JP 2021092078A
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geological survey
boring
core drill
electric core
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JP7027392B2 (en
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鈴木　功
Isao Suzuki
功 鈴木
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Will Power Grid Co Ltd
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Abstract

To provide a boring machine for geological survey that is easy to carry in and out of mountainous areas, maintains work capacity in narrow and low ground level sites, has sufficient digging capacity of 10-15 m, and can perform standard penetration tests.SOLUTION: An elevating block 3 is attached to an elevating post 2 erected on a base 1 fixed to the ground G. An upper end of a boring rod 6 provided with a sampler 7 is fixed to a rotating portion 5a of an electric core drill 5 attached to the elevating block 3. A pressure lever 4 for lowering the elevating block 3 when the electric core drill 5 is rotated to lower the boring rod 6 into the ground is provided. A derrick 13 is assembled so as to surround the base 1. An electric winch 9 is installed on the base 1. A wire 11 is hung on a pulley 10 suspended from an upper part of the derrick 13. A tip of the wire 11 is connected to an upper end of the elevating block 3 with a connector 12.SELECTED DRAWING: Figure 1

Description

本発明は、山岳地への搬入、組立・分解、搬出が容易で、掘進能力１０−１５ｍを有する地質調査用ボーリング装置に関する。 The present invention relates to a geological survey boring device that is easy to carry in, assemble, disassemble, and carry out into a mountainous area and has a digging capacity of 10 to 15 m.

地質調査する際に用いられるボーリングの手法としては、主としてロータリーボーリングと簡易ボーリングとがある。 The boring methods used for geological surveys are mainly rotary boring and simple boring.

ロータリーボーリングは、ロータリー式のボーリングマシンを用い、チャックでボーリングロッドを固定し給圧を加えつつ回転させ、コアチューブで地盤を採取する方法である。簡易ボーリングは、エンジンの動力および人力によって地盤に打ち込むかまたは回転させてコアを採取する方法である。
Rotary boring is a method of using a rotary boring machine, fixing the boring rod with a chuck, rotating it while applying supply pressure, and collecting the ground with a core tube. Simple boring is a method of collecting a core by driving or rotating it into the ground by the power and human power of an engine.

特開２００１−２２０９８７号公報Japanese Unexamined Patent Publication No. 2001-220987

ロータリーボーリングは、ボーリングマシンを用いるので掘削能力が大きいから、あらゆる土・岩の掘進が可能でコアが精度良く採取でき、様々な孔内試験を行うこともできる。しかし、ロータリーボーリングは、装置の総重量は１．５−２ｔもあり、ボーリングマシンだけでも３５０ｋｇ以上あり、山岳地への搬入出は非常に困難である。 Since the rotary boring uses a boring machine, it has a large excavation ability, so it is possible to excavate all kinds of soil and rocks, the core can be collected accurately, and various in-hole tests can be performed. However, the total weight of the rotary boring device is 1.5-2 tons, and the boring machine alone weighs 350 kg or more, so it is very difficult to carry it in and out of the mountainous area.

簡易ボーリングは、重量が軽くて容易に搬入出できるが、掘進能力が劣るとともにエンジンの騒音問題があり、標準貫入試験ができないものであった。 The simple boring is light in weight and can be easily carried in and out, but the digging ability is inferior and there is a noise problem of the engine, so that the standard penetration test cannot be performed.

本発明は、上述した点に鑑み案出されたもので、装置の総重量、装置本体の重量を山岳地への搬入出が容易な重量としかつ装置の大きさを狭小・低地上高用地内での調査を可能であるよう小型化を実現し、掘進能力も１０−１５ｍ有し、標準貫入試験も行うことができる地質調査用ボーリング装置を提供することにある。 The present invention has been devised in view of the above points, and the total weight of the device and the weight of the device body are set to a weight that can be easily carried in and out of a mountainous area, and the size of the device is narrow and low above ground. The purpose of the present invention is to provide a geological survey boring device that can be miniaturized so that it can be surveyed in Japan, has a digging capacity of 10 to 15 m, and can also perform a standard penetration test.

本発明の第１の態様は、電動コアドリルを用いて挿入先端にサンプラーを備えたボーリングロッドを回転しつつ地中に圧下させてコアの採取および標準貫入試験を行う地質調査用ボーリング装置であって、地盤Ｇに固定されるベースと、前記ベース上の端位置に垂直に分解可能に立設された昇降用ポストと、前記昇降用ポストに昇降自在に取り付けられ前記ベースの外方に張り出した昇降用ブロックと、前記昇降用ブロックの張出端に回転部を下向きにして取り付けられた電動コアドリルと、前記電動コアドリルの回転部に上端を分離可能に固定された挿入先端にサンプラーを備えたボーリングロッドと、前記昇降用ブロックに設けられ、前記電動コアドリルを回転して前記ボーリングロッドを地中に圧下させる際に、前記昇降用ポストに係止して前記昇降用ブロックを下降させる加圧レバーと、滑車を備えたベースを囲むように組み立てられたやぐらと、前記ベース１上に固定され、巻胴から繰り出されるワイヤーが前記やぐらの上部に吊り下げられた滑車に掛架された電動ウインチと、前記ワイヤーの先端部に前記昇降用ブロックの上端部と連結する連結具とを備えたことを特徴とする。 The first aspect of the present invention is a geological survey boring device that uses an electric core drill to rotate a boring rod having a sampler at the insertion tip and press it into the ground to collect a core and perform a standard penetration test. , A base fixed to the ground G, an elevating post erected vertically disassembled at an end position on the base, and an elevating post that is freely attached to the elevating post and projects to the outside of the base. Block, an electric core drill attached to the overhanging end of the elevating block with the rotating part facing downward, and a boring rod equipped with a sampler at the insertion tip fixed to the rotating part of the electric core drill so that the upper end can be separated. A pressurizing lever provided on the elevating block and locking the elevating post to lower the elevating block when the electric core drill is rotated to reduce the boring rod into the ground. A yagura assembled so as to surround a base provided with a pulley, an electric winch fixed on the base 1 and a wire drawn from a winding drum suspended on a pulley suspended above the gourd, and the above. The tip of the wire is provided with a connecting tool for connecting to the upper end of the elevating block.

本発明の第２の態様は、上記第１の態様の地質調査用ボーリング装置において、前記ボーリングロッドが複数の分割子よりなる継ぎ足し構造とすることができる。 In the second aspect of the present invention, in the geological survey boring device of the first aspect, the boring rod may have a replenishment structure composed of a plurality of dividers.

本発明の第３の態様は、上記第１または第２の態様の地質調査用ボーリング装置において、前記ベースを地盤に固定するアンカーを備えたものとすることができる。 A third aspect of the present invention may include an anchor for fixing the base to the ground in the geological survey boring device of the first or second aspect.

本発明の第４の態様は、上記第１−第３のいずれかの態様の地質調査用ボーリング装置において、前記ボーリングロッドの上端部に脱着自在に取り付けられた標準貫入試験用の所定重量のハンマーを備えたものとすることができる。 A fourth aspect of the present invention is a hammer having a predetermined weight for a standard penetration test, which is detachably attached to the upper end of the boring rod in the geological survey boring device according to any one of the first to third aspects. Can be provided.

本発明の第５の態様は、上記第４の態様の地質調査用ボーリング装置において、前記ハンマーが複数に分割できる構造とすることができる。 A fifth aspect of the present invention can be a structure in which the hammer can be divided into a plurality of parts in the geological survey boring device of the fourth aspect.

本発明の第６の態様は、上記第１−第５のいずれかの態様の地質調査用ボーリング装置において、前記電動コアドリルの前記回転部の給水口に接続されたホースを介してボーリングロッド内に泥水を給水するポンプを備えたものとすることができる。 A sixth aspect of the present invention is in the geological survey boring device according to any one of the first to fifth aspects, in the boring rod via a hose connected to a water supply port of the rotating portion of the electric core drill. It may be equipped with a pump for supplying muddy water.

本発明の第７の態様は、上記第１−第６のいずれかの態様の地質調査用ボーリング装置において、電動コアドリルおよび電動ウインチに給電する分離独立した発電機を備えたものとすることができる。 A seventh aspect of the present invention may be a geological survey boring device according to any one of the first to sixth aspects, comprising an electric core drill and a separate and independent generator for supplying power to the electric winch. ..

本発明によれば、装置の総重量、装置本体の重量を山岳地への搬入出が容易な重量としかつ装置の大きさを狭小・低地上高用地内での調査を可能であるよう小型化を実現し、掘進能力も１０−１５ｍ有し、標準貫入試験も行うことができる地質調査用ボーリング装置を提供することができる。 According to the present invention, the total weight of the device and the weight of the main body of the device are reduced so that the weight can be easily carried in and out of the mountainous area, and the size of the device can be reduced so that it can be investigated in a narrow and low ground high site. It is possible to provide a boring device for geological survey, which has a drilling capacity of 10 to 15 m and can perform a standard penetration test.

本発明の実施の形態に係るボーリング装置の正面図である。It is a front view of the bowling apparatus which concerns on embodiment of this invention.

以下、本発明に係る地質調査用ボーリング装置の実施の形態について図面を参照して説明する。 Hereinafter, embodiments of the geological survey boring device according to the present invention will be described with reference to the drawings.

図１は実施の形態の地質調査用ボーリング装置の正面図である。地質調査用ボーリング装置１００は、ベース１と、昇降用ポスト２と、昇降用ブロック３と、電動コアドリル５と、サンプラー７を備えたボーリングロッド６と、加圧レバー４と、やぐら１３と、電動ウインチ９と、連結具１２とを備え、電動コアドリル５を用いて挿入先端にサンプラー７を備えたボーリングロッド６を回転しつつ地中に圧下させて削孔Ｓを設け、コアの採取および標準貫入試験を行う。 FIG. 1 is a front view of the geological survey boring device of the embodiment. The geological survey boring device 100 includes a base 1, an elevating post 2, an elevating block 3, an electric core drill 5, a boring rod 6 equipped with a sampler 7, a pressure lever 4, a yagura 13, and an electric motor. A boring rod 6 equipped with a winch 9 and a connecting tool 12 and having a sampler 7 at the insertion tip using an electric core drill 5 is rotated and pressed down into the ground to provide a drilling S, and core sampling and standard penetration are performed. Do the test.

ベース１は、掘進時の反力不足でズレないよう四隅にアンカー１７を備え、水平な地盤Ｇに固定される。ベース１は例えば１．３ｍ×０．３ｍの寸法である。 The base 1 is provided with anchors 17 at four corners so as not to shift due to insufficient reaction force during excavation, and is fixed to the horizontal ground G. The base 1 has dimensions of, for example, 1.3 m × 0.3 m.

昇降用ポスト２は、ベース１上に端位置に垂直に分解可能に立設されている。昇降用ブロック３は、昇降用ポスト２に昇降自在に取り付けられ、かつ昇降用ポスト２を押圧するねじ締め付け式の加圧部材１８を備え加圧部材１８で適宜の高さに締め付け固定できる。
昇降用ブロック３は、ベース１の外方に張り出している。昇降用ポスト２には、縦方向にラック２ａが刻設されており、加圧部材１８を緩めて加圧レバー４の回転で図示しないギヤがラック２ａと歯合しながら昇降用ブロック３を昇降できる。 The elevating post 2 is erected on the base 1 so as to be disassembled perpendicular to the end position. The elevating block 3 is attached to the elevating post 2 so as to be able to be elevated and lowered, and is provided with a screw tightening type pressure member 18 that presses the elevating post 2 and can be tightened and fixed to an appropriate height by the pressure member 18.
The elevating block 3 projects outward from the base 1. A rack 2a is engraved in the elevating post 2 in the vertical direction, and when the pressurizing member 18 is loosened and the pressurizing lever 4 rotates, a gear (not shown) meshes with the rack 2a to elevate and elevate the elevating block 3. it can.

電動コアドリル５は、昇降用ブロック３の張出端（ベース１から外れた位置）に回転部５ａを下向きにして取り付けられている。電動コアドリル５は１５０／２００ｒｐｍおよび４５０／９５０ｒｐｍの切換式で回転部５にポンプ８から給水するホース１５を接続している。 The electric core drill 5 is attached to the overhanging end (position deviated from the base 1) of the elevating block 3 with the rotating portion 5a facing downward. The electric core drill 5 is a switching type of 150/200 rpm and 450/950 rpm, and a hose 15 for supplying water from the pump 8 is connected to the rotating portion 5.

ボーリングロッド６は、電動コアドリル５の回転部５ａに上端を分離可能に固定された挿入先端にサンプラー７を備えている。ボーリングロッド６は運搬し易いよう複数の分割子よりなる継ぎ足し構造である。 The boring rod 6 is provided with a sampler 7 at an insertion tip whose upper end is separably fixed to the rotating portion 5a of the electric core drill 5. The boring rod 6 has a replenishment structure composed of a plurality of dividers so as to be easy to carry.

加圧レバー４は、昇降用ブロック３に設けられている。昇降用ポスト２には、縦方向に図示しないラックが刻設されており、電動コアドリル５を回転してボーリングロッド６を地中に圧下させ、昇降用ポスト２に係止して昇降用ブロック３を下降させる際に、加圧レバー４の回転で図示しないギヤが図示しないラックと歯合しながら昇降できる。 The pressurizing lever 4 is provided on the elevating block 3. A rack (not shown) is engraved in the elevating post 2 in the vertical direction. The electric core drill 5 is rotated to reduce the boring rod 6 into the ground, and the boring rod 6 is locked to the elevating post 2 to be locked to the elevating block 3. When the pressure lever 4 is rotated, a gear (not shown) can be moved up and down while meshing with a rack (not shown).

やぐら１３は、滑車１０を備えたベース１を囲むように組み立てられている。やぐら１３は分割可能な三脚パイプを束ねた頂部から吊下した滑車１０にウインチ９の巻取部からのワイヤー１１を巻架して構成され、サンプラー７の引き上げ時および標準貫入試験時に用いられる。 The yagura 13 is assembled so as to surround the base 1 provided with the pulley 10. The yagura 13 is configured by winding a wire 11 from the winding portion of the winch 9 on a pulley 10 suspended from the top of a bundle of splittable tripod pipes, and is used when pulling up the sampler 7 and during a standard penetration test.

電動ウインチ９は、ベース１上に固定され、巻胴９ａから繰り出されるワイヤー１１がやぐら１３の上部に吊り下げられた滑車１０に掛架されている。 The electric winch 9 is fixed on the base 1, and a wire 11 unwound from the winding cylinder 9a is hung on a pulley 10 suspended above the yagura 13.

連結具１２は、ワイヤー１１の先端部に昇降用ブロック３の上端部と連結する。連結具１２とワイヤー１１の先端部との間に、標準貫入試験用の所定重量のハンマー１４を備えている。ハンマー１４が複数に分割できる構造である。標準貫入試験に用いるハンマー１４は重量が６３．５ｋｇあり、例えば輪切り上の３分割とするのがよい。ボーリングロッド６は例えば５０ｃｍおよび１００ｃｍに複数分割できる構造である。 The connector 12 connects to the tip of the wire 11 with the upper end of the elevating block 3. A hammer 14 having a predetermined weight for a standard penetration test is provided between the connector 12 and the tip of the wire 11. The structure is such that the hammer 14 can be divided into a plurality of parts. The hammer 14 used in the standard penetration test weighs 63.5 kg, and is preferably divided into three parts on a round slice, for example. The boring rod 6 has a structure that can be divided into a plurality of 50 cm and 100 cm, for example.

電動コアドリル５の回転部４ｂの給水口に接続されたホース１５を介してボーリングロッド６内に泥水を給水するポンプ８を備えている。 A pump 8 for supplying muddy water into the boring rod 6 via a hose 15 connected to a water supply port of a rotating portion 4b of an electric core drill 5 is provided.

電動コアドリル５および電動ウインチ９に給電する分離独立した発電機１６ａ，１６ｂを備えている。電動コアドリルや電動ウインチへ給電する発電機は大型を１機用いるより小型を２機並設して用いるのが効率的でよい。 It is provided with separate and independent generators 16a and 16b that supply power to the electric core drill 5 and the electric winch 9. As for the generator that supplies power to the electric core drill and the electric winch, it is more efficient to use two small ones side by side than to use one large one.

上記構成のボーリング装置１００によれば、電動コアドリル５を用いてサンプラー７を備えたボーリングロッド６を地中に圧下させてコアの採取および標準貫入試験を行う。作業範囲はコアを採取する作業性を考慮して２．０ｍ×２．０ｍとする。 According to the boring device 100 having the above configuration, a boring rod 6 provided with a sampler 7 is pressed into the ground using an electric core drill 5 to collect a core and perform a standard penetration test. The working range is 2.0m x 2.0m in consideration of the workability of collecting the core.

サンプラー７としては、シングルコアチューブ・ダブルコアチューブを使用し、主にダイヤビットを使用する（回転が速いため、きれいに礫を切る能力に優れている）。基本的には送水掘りで綺麗なコアを採取し、この際、掘進能力を向上するよう、送水はスライム排除・孔壁保護という面から泥水（界面活性剤）を使用する。また、量水計・圧力計を取り付け、地層にあった水量で掘進を行う。孔壁の崩壊が激しい場合は、口径８３ｍｍのチューブをケーシング材として使用する。 As the sampler 7, a single core tube and a double core tube are used, and a diamond bit is mainly used (because the rotation is fast, the ability to cut gravel cleanly is excellent). Basically, a clean core is collected by water digging, and at this time, muddy water (surfactant) is used for water supply from the viewpoint of slime removal and hole wall protection in order to improve the digging ability. In addition, a water meter and pressure gauge will be installed to excavate with the amount of water that matches the stratum. When the hole wall collapses severely, a tube having a diameter of 83 mm is used as a casing material.

本実施の形態の地質調査用ボーリング装置１００の組み立ては、ベース１の四隅をアンカー１７で地盤Ｇに固定し、ベース１上に垂直の昇降用ポスト２をベース１に設けた孔に嵌合しかつ昇降用ポスト２に設けたフランジ２ａをボルトでベース１に固定し、昇降用ポスト２に昇降用ブロック３に昇降自在に取り付け、昇降用ブロック３に電動コアドリル５を取り付け、電動コアドリル５の下側に回転部５ａにサンプラー７を備えたボーリングロッド６の上端を接続支持し、電動コアドリル５を回転してボーリングロッド６を地中に加圧する加圧レバー４を昇降用ブロック３に設け、ベース１を囲むように滑車１０を備えたやぐら１３を配設し、やぐら１３の滑車１０にベース１上に設けた電動ウインチ９のワイヤー１１を斜めに掛架し、ワイヤー１１の先端部にハンマー１４を取り付けさらにボーリングロッド６の上端部と連結する連結具１２を取り付け、ポンプ１６と電動コアドリル５の回転部４ｂの給水口とにホース１５を接続してボーリングロッド５内に泥水を給水できるようにし、発電機１６ａ，１６ｂを電動コアドリル５および電動ウインチ９に給電できるようにした。 In the assembly of the geological survey boring device 100 of the present embodiment, the four corners of the base 1 are fixed to the ground G with anchors 17, and the elevating post 2 perpendicular to the base 1 is fitted into the hole provided in the base 1. Further, the flange 2a provided on the elevating post 2 is fixed to the base 1 with a bolt, the elevating post 2 is freely attached to the elevating block 3, the electric core drill 5 is attached to the elevating block 3, and the bottom of the electric core drill 5 is attached. A pressure lever 4 for connecting and supporting the upper end of a boring rod 6 provided with a sampler 7 on a rotating portion 5a on the side and rotating an electric core drill 5 to pressurize the boring rod 6 into the ground is provided on the elevating block 3 to provide a base. A yagura 13 provided with a pulley 10 is arranged so as to surround 1, a wire 11 of an electric winch 9 provided on a base 1 is diagonally hung on the pulley 10 of the yagura 13, and a hammer 14 is attached to the tip of the wire 11. And a connector 12 that connects to the upper end of the boring rod 6 is attached, and a hose 15 is connected to the water supply port of the rotating portion 4b of the pump 16 and the electric core drill 5 so that muddy water can be supplied into the boring rod 5. , The generators 16a and 16b can be supplied to the electric core drill 5 and the electric winch 9.

本実施の形態の地質調査用ボーリング装置によれば、ベース１を広い面積の剛性板で構成できて地盤Ｇにしっかり固着することができ、削孔Ｓを設ける位置はベース１を貫通する真下ではないので、ボーリングロッド６の繋ぎ足しが容易になるとともに、やぐら１３の滑車１０にベース１上に設けた電動ウインチ９のワイヤー１１を斜めに掛架するので、ワイヤー１１の巻揚げ時にベース１の浮揚力がちいさくなる。さらに、昇降用ポスト２と昇降用ブロック３を簡素な形状に形成することができて、かつ昇降用ポスト２と昇降用ブロック３をベース１に十分な合成を有して容易に組み立てることができる。 According to the geological survey boring device of the present embodiment, the base 1 can be composed of a rigid plate having a wide area and can be firmly fixed to the ground G, and the position where the drilling S is provided is directly below the base 1. Since there is no such thing, it is easy to connect the boring rods 6, and the wire 11 of the electric winch 9 provided on the base 1 is diagonally hung on the pulley 10 of the yagura 13, so that the wire 11 is unwound when the wire 11 is unwound. The buoyancy becomes small. Further, the elevating post 2 and the elevating block 3 can be formed into a simple shape, and the elevating post 2 and the elevating block 3 can be easily assembled with sufficient composition on the base 1. ..

これらの主な部品の製作例の重量は、ベース１が１０ｋｇ、昇降用ポスト２が１８ｋｇ、昇降用ブロック３を含む電動コアドリル５が２０．０ｋｇ、ボーリングロッド６が２．５−５ｋｇ、ウインチ９は１３ｋｇ、やぐら１３は１５ｋｇ、発電機１６ａ，１６ｂは合計で２０ｋｇ前後である。 The weights of the production examples of these main parts are 10 kg for the base 1, 18 kg for the elevating post 2, 20.0 kg for the electric core drill 5 including the elevating block 3, 2.5-5 kg for the boring rod 6, and winch 9. Is 13 kg, the yagura 13 is 15 kg, and the generators 16a and 16b are about 20 kg in total.

これらは全て脱着自在または分割自在の部品で構成されているから、総重量は３００ｋｇ程になるものの単体の重量が最大でも２０ｋｇ以下で人肩運搬が可能となり、山岳地への搬入出が容易である。 Since these are all made up of removable or split parts, the total weight is about 300 kg, but the weight of a single unit is 20 kg or less at the maximum, and it is possible to carry it on the shoulder, making it easy to carry in and out of the mountains. is there.

すなわち、本発明の地質調査用ボーリング装置は、装置の総重量、装置本体の重量を山岳地への搬入出が容易な重量としかつ装置の大きさを狭小・低地上高用地内での調査を可能であるよう小型化を実現し、掘進能力も１０−１５ｍ有し、標準貫入試験も行うことができる。本発明によれば、装置を構成する部品を現場で組み立てることで、部品単体が人肩運搬が可能な重量となり、山岳地への搬入出が容易となる。また、装置本体から分離独立した発電機を使用することに加え、電動コアドリルの採用，ベース固定用のアンカーを使用することにより、最小幅２．０ｍ×２．０ｍ，全高３．０ｍ程度の狭小・低地上高用地での作業が可能となる。また、標準貫入試験も可能となる。特に、本発明によれば、ベース１に対してラック２ａの向きを任意に変えて昇降用ポスト２を立設することができるから、ベース１と削孔Ｓとの位置および角度関係の自由度が増し、山岳地での狭小な場所での設置が容易になる。 That is, in the geological survey boring device of the present invention, the total weight of the device and the weight of the device body are set to a weight that can be easily carried in and out of a mountainous area, and the size of the device is set to a narrow and low-ground high-land survey. It has been miniaturized to be possible, has a digging capacity of 10-15 m, and can perform standard penetration tests. According to the present invention, by assembling the parts constituting the apparatus on-site, the weight of the individual parts can be carried on the shoulder, and the parts can be easily carried in and out of the mountainous area. In addition to using a generator that is separate and independent from the main body of the device, by using an electric core drill and an anchor for fixing the base, the minimum width is 2.0m x 2.0m and the total height is about 3.0m.・ It is possible to work on low ground and high land. In addition, a standard penetration test is also possible. In particular, according to the present invention, since the elevating post 2 can be erected by arbitrarily changing the orientation of the rack 2a with respect to the base 1, the degree of freedom in the positional and angular relationship between the base 1 and the drilling S is high. Will increase, making it easier to install in tight spaces in mountainous areas.

本発明の地質調査用ボーリング装置は、山岳地だけでなく、その他人肩運搬でないと搬入出し難い地域の地質調査に好ましく利用できる。 The boring device for geological survey of the present invention can be preferably used not only for mountainous areas but also for geological surveys in other areas where it is difficult to carry in and out without carrying by shoulders.

１…ベース、２…昇降用ポスト、２ａ…フランジ、３…昇降用ブロック、４…加圧レバー、５…電動コアドリル、５ａ…回転部、６…ボーリングロッド、７…サンプラー、８…ポンプ、９…電動ウインチ、９ａ…巻胴、１０…滑車、１１…ワイヤー、１２…連結具、１３…やぐら、１４…ハンマー、１５…ホース、１６ａ，１６ｂ…発電機、１７…アンカー、１８…加圧部材。 1 ... Base, 2 ... Lifting post, 2a ... Flange, 3 ... Lifting block, 4 ... Pressurizing lever, 5 ... Electric core drill, 5a ... Rotating part, 6 ... Boring rod, 7 ... Sampler, 8 ... Pump, 9 ... electric winch, 9a ... winding drum, 10 ... pulley, 11 ... wire, 12 ... connector, 13 ... yagura, 14 ... hammer, 15 ... hose, 16a, 16b ... generator, 17 ... anchor, 18 ... pressurizing member ..

Claims (7)

電動コアドリルを用いて挿入先端にサンプラーを備えたボーリングロッドを回転しつつ地中に圧下させてコアの採取および標準貫入試験を行う地質調査用ボーリング装置であって、
地盤に固定されるベースと、
前記ベース上の端位置に垂直に分解可能に立設された昇降用ポストと、
前記昇降用ポストに昇降自在に取り付けられ前記ベースの外方に張り出した昇降用ブロックと、
前記昇降用ブロックの張出端に回転部を下向きにして取り付けられた電動コアドリルと、
前記電動コアドリルの回転部に上端を分離可能に固定された挿入先端にサンプラーを備えたボーリングロッドと、
前記昇降用ブロックに設けられ、前記電動コアドリルを回転して前記ボーリングロッドを地中に圧下させる際に、前記昇降用ポストに係止して前記昇降用ブロックを下降させる加圧レバーと、
滑車を備えたベースを囲むように組み立てられたやぐらと、
前記ベース上に固定され、巻胴から繰り出されるワイヤーが前記やぐらの上部に吊り下げられた滑車に掛架された電動ウインチと、
前記ワイヤーの先端部に前記昇降用ブロックの上端部と連結する連結具とを備えた
ことを特徴とする地質調査用ボーリング装置。 A geological survey boring device that uses an electric core drill to rotate a boring rod equipped with a sampler at the insertion tip and press it into the ground to collect a core and perform a standard penetration test.
The base fixed to the ground and
An elevating post that is erected so that it can be disassembled perpendicular to the end position on the base,
An elevating block that is freely attached to the elevating post and projects to the outside of the base,
An electric core drill attached to the overhanging end of the elevating block with the rotating part facing down.
A boring rod having a sampler at the insertion tip, the upper end of which is separably fixed to the rotating part of the electric core drill.
A pressure lever provided on the elevating block and locking the elevating post to lower the elevating block when the electric core drill is rotated to reduce the boring rod into the ground.
A yagura assembled around a base with pulleys,
An electric winch fixed on the base and a wire drawn out from the winding cylinder hung on a pulley suspended from the upper part of the yagura.
A geological survey boring device characterized in that the tip of the wire is provided with a connecting tool for connecting to the upper end of the elevating block. 前記ボーリングロッドは複数の分割子よりなる継ぎ足し構造である請求項１記載の地質調査用ボーリング装置。 The geological survey boring device according to claim 1, wherein the boring rod has a replenishment structure including a plurality of dividers. 前記ベースを地盤に固定するアンカーを備えた請求項１または２記載の地質調査用ボーリング装置。 The geological survey boring device according to claim 1 or 2, further comprising an anchor for fixing the base to the ground. 前記ボーリングロッドの上端部に脱着自在に取り付けられた標準貫入試験用の所定重量のハンマーを備えた請求項１−３いずれか記載の地質調査用ボーリング装置。 The geological survey boring device according to any one of claims 1-3, which is provided with a hammer having a predetermined weight for a standard penetration test, which is detachably attached to the upper end of the boring rod. 前記ハンマーが複数に分割できる構造である請求項４記載の地質調査用ボーリング装置。 The geological survey boring device according to claim 4, which has a structure in which the hammer can be divided into a plurality of parts. 前記電動コアドリルの前記回転部の給水口に接続されたホースを介してボーリングロッド内に泥水を給水するポンプを備えた請求項１−５いずれか記載の地質調査用ボーリング装置。 The geological survey boring device according to any one of claims 1 to 5, further comprising a pump for supplying muddy water into a boring rod via a hose connected to a water supply port of the rotating portion of the electric core drill. 電動コアドリルおよび電動ウインチに給電する分離独立した発電機を備えた請求項１−６いずれか記載の地質調査用ボーリング装置。 The geological survey boring device according to any one of claims 1 to 6, further comprising a separate and independent generator that supplies power to an electric core drill and an electric winch.
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