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1. 发明专利

JPH06212619A FOUNDATION IMPROVING BODY 失效
公开(公告)号：JPH06212619A
公开(公告)日：1994-08-02
申请号：JP596993
申请日：1993-01-18
申请人： TENOX KK , TENOTSUKUSU KYUSHU KK
发明人： FUJIKAWA KAZUYUKI , HAMATAKE AKIRA , FUKUDA ATSUO , YOSHIDA SHIGERU , KAMI SHUJI
IPC分类号： E01C3/04 , E02D3/12
摘要： PURPOSE:To make improved soil affinitive to a lower layer and a side wall excellently by allowing improved soil to permeate in agrid and enhance a ground improvement effect by wrapping improved soil with a geotextile between the lower layer and an upper layer, in which original-position soil and a solidifying material are mixed and agitated. CONSTITUTION:A poor subsoil is excavated and a recessed section 2 is formed, the bottom ground of the recessed section 2 is agitated by a bucket mixing system, and cement 6and EPS beads 7 are mixed with original-position soil 5 and an improved-body lower layer 3 is formed. A geotextile sheet 4 is laid on the improved-body lower layer 3, and the side edge section of the sheet 4 is overhung to the outside of the recessed section 2. The excavated original-position soil 5, cement 6 as a solidifying material, the EPS beads 7 and water 8 are mixed by a mixer 9 and the inside of the recessed section 2, in which the sheet 4 is laid, is impregnated with improved soil 10. The peripheral section of the improved soil 10 is wrapped and fixed by the overhung geotextile sheet 4, and an improved-body upper layer is executed. Accordingly, the safety and workability are improved, a ground improving body resists banking and car load, and settlement and side flowing are prevented and the ground improving body can be constructed at a low cost.

2. 发明专利

JP2001073305A ROAD CONSTRUCTION BODY 失效
公开(公告)号：JP2001073305A
公开(公告)日：2001-03-21
申请号：JP2000248315
申请日：2000-08-18
申请人： TENOX KK , TENOTSUKUSU KYUSHU KK , MITSUBISHI MATERIALS CORP , DIA CONSULTANT KK , TOKYO HOSO KOGYO
发明人： MIURA TETSUHIKO , FUJIKAWA KAZUYUKI , HAMATAKE AKIRA , TANAKA HIDEKI , FUKUDA ATSUO , YOSHIDA SHIGERU
IPC分类号： E02D3/12 , E01C3/04
摘要： PROBLEM TO BE SOLVED: To provide a road construction body with less consolidation settlement caused by dynamic load on the soft ground at a low construction cost within a short construction period of time. SOLUTION: A road construction body is constituted of soil cement columnar bodies 1 for improving the deep ground and improved soil consolidated with grout for improving the shallow ground. The plane arrangement of the soil cement columnar bodies 1 is a grid arrangement or a non-contact zigzag arrangement, and a grid interval in the case of the grid arrangement and an interval between two soil cement columnar bodies 1 adjacent to each other in the case of the non-contact zigzag arrangement is less than two times of the height from the upper end of each of the soil cement columnar bodies 1 to a road paving surface, plane view improvement rate is 20-60%, and value of length of each of the soil cement columnar bodies 1 + thickness of shallow layer and improved soil (subgrade) + thickness of road pavement is more than 4 m.

3. 发明专利

JPH09151409A CONSTRUCTION METHOD FOR ROAD 失效
公开(公告)号：JPH09151409A
公开(公告)日：1997-06-10
申请号：JP30429995
申请日：1995-11-22
申请人： TENOX KK , TENOTSUKUSU KYUSHU KK
发明人： MIURA TETSUHIKO , FUJIKAWA KAZUYUKI , HAMATAKE AKIRA , TANAKA HIDEKI , FUKUDA ATSUO , YOSHIDA SHIGERU
IPC分类号： E01C3/00 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To suppress settlement due to consolidation caused by dynamic load by specifying the height from the tips of soil-cement column bodies, constructed in the weak ground at a specified top view improvement ratio, to the road paved surface. SOLUTION: Soil-cement column bodies 1 are constructed in the weak ground of a road foundation at a top view improvement ratio of 20-60%, and a shallow improving soil layer 11 with cement group consolidating material mixed and consolidated is laid thereon. A grading-adjusted crushed stone layer 15 is further laid thereon and paved with asphalt-concrete 16. In this case, the height from the tips of the soil-cement column bodies 1 to the road paved surface is to be 4m or more. The plane layout of the soil-cement column bodies 1 is to be of grated shape, and it is desirable that the spacing of grating is not more than twice the height from the upper ends of the soil-cement column bodies 1 to the road paved surface. Settlement due to consolidation caused by dynamic load is thereby suppressed in spite of the small improved area of the deep layer ground, and a road can be constructed efficiently at a low construction cost.

4. 发明专利

JPH1171748A STRUCTURE IN PERIPHERY OF UNDERGROUND STRUCTURE IN SOFT GROUND AND METHOD OF CONSTRUCTION THEREOF 失效
公开(公告)号：JPH1171748A
公开(公告)日：1999-03-16
申请号：JP23364397
申请日：1997-08-29
申请人： DIA CONSULTANT KK , TENOX KK , TENOTSUKUSU KYUSHU KK , TOKYO HOSOU KOGYO KK , MITSUBISHI MATERIALS CORP
发明人： MIURA TETSUHIKO , FUJIKAWA KAZUYUKI , FUKUDA ATSUO , UEYAMA YOJI , HAMATAKE AKIRA , KOBAYASHI ISAO
IPC分类号： E02D3/12 , E02D5/18 , E02D31/00
摘要： PROBLEM TO BE SOLVED: To carry out building at a low cost in the comparatively short terms of works, to prevent a flood during the construction works of an excavating section for constructing an underground structure or after the construction works, to obviate the floating of the underground structure after the construction works and to avert the generation of stepped sections among the upper section of the underground structure of a road and sections adjacent to the upper section of the underground structure at the time of the usage of the road crossed on the underground structure such as a culvert installed onto a soft ground. SOLUTION: The structure in the periphery of the underground structure in the soft ground is composed of sheathing sections 12 installed to sections facing the side sections of the underground structure 11 of the soft ground 10, batholith sections 13 mounted on sections facing the bottom section of the underground structure 11 of the soft ground 10, and bearing pile sections 16 set up so that lower ends are fixed onto a bearing stratum 14 in the lower section of the soft ground 10 and upper ends are placed on the batholith sections 13. The sheathing sections 12, the batholith sections 13 and the bearing pile sections 16 consist of a plurality of soil cement poles 21 respectively, and these soil cement poles 21 are unified by mutually superposing the outer circumferential sections of the soil cement poles 21 before and behind and left and right in plane shapes.

5. 发明专利

JP2842747B2 失效
公开(公告)号：JP2842747B2
公开(公告)日：1999-01-06
申请号：JP596993
申请日：1993-01-18
申请人： TENOTSUKUSU KK , TENOTSUKUSU KYUSHU KK
发明人： FUJIKAWA KAZUYUKI , HAMATAKE AKIRA , FUKUDA ATSUO , YOSHIDA SHIGERU , KAMI SHUJI
IPC分类号： E01C3/04 , E02D3/12

6. 发明专利

JP2002294690A GROUND IMPROVING METHOD 失效
公开(公告)号：JP2002294690A
公开(公告)日：2002-10-09
申请号：JP2001102242
申请日：2001-03-30
申请人： TENOX KK
发明人： FUKUDA ATSUO
IPC分类号： E02F5/06 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To provide a ground improving method for improving contaminated soil in the ground to be non-contaminated soil, or improving soft ground to be good-quality ground in which uniformly improved matter is formed to a specified top end. SOLUTION: A ground improving device 100 is used, a cutter post 3 is fixed to an expected construction position, an endless chain is circulated, and ground improving material 10 is supplied from a grouting pipe 6 provided on a ground surface 20 or the cutter post 3, while the cutter post 3 is lowered to cut the ground 20. The ground soil is mixed and agitated with the improving material 10, the mix g is carried above the ground by the endless chain circulating the mix g to be continuously discharged, the discharged mix g is deposited on the ground, and when it reaches depth of a lower end, a circulating direction of the endless chain 3 is changed into a direction to carry the mix g on the ground into the ground. As the mix g is supplied into the ground by a carrying function of the endless chain 3, the cutter post 3 is pulled upward. The cutter post 3 is pulled while the mix g is mixed and agitated again by circulation of the endless chain 3 to fill the mix g to a hole after the cutter post 3 is pulled off. A column of the mix g having a rectangular cross section is thus formed in the ground.

7. 发明专利

JP2001303554A APPARATUS AND METHOD FOR CUTTING CONSOLIDATED BODY AT JOINT PART OF CONTINUOUS WALL MEMBER MADE OF STEEL 失效
公开(公告)号：JP2001303554A
公开(公告)日：2001-10-31
申请号：JP2000120662
申请日：2000-04-21
申请人： TENOX KK
发明人： FUKUDA ATSUO
IPC分类号： E02F5/06 , E02D5/20
摘要： PROBLEM TO BE SOLVED: To facilitate removal of a consolidated body around the unconnected joint part of continuous wall members made of steel, thereby facilitating the connection of the member with another continuous wall member made of steel which is inserted afterwards, in the construction of an underground continuous wall made of steel, wherein the continuous wall members made of steel are inserted into continuous soil-cement ground improving elements. SOLUTION: A pair of cutting blades 3 and 3 are connected to a baseplate 2 fixed to the endless chain 6 of an excavating agitating device 4 used for constructing the ground improving elements 12, and the consolidated body which is consolidated around the joint part 13a of the continuous wall members 13 made of steel is forcibly cut by the cutting blades 3 and 3 to make a cut in the consolidated body to thereby make it easy to remove, using a cutter bit 8 attached to the endless chain 6, the portion of the consolidated body which is on the yet-to-construct side across the joint part 13a.

8. 发明专利

JP2001226999A VIBRATION SHIELDING WALL AND ITS CONSTRUCTING METHOD 失效
公开(公告)号：JP2001226999A
公开(公告)日：2001-08-24
申请号：JP2000042524
申请日：2000-02-21
申请人： RAILWAY TECHNICAL RES INST , TENOX KK
发明人： MURATA OSAMU , TANAMURA SHIRO , KANDA MASAYUKI , TAKIZAWA SATOSHI , FUKUDA ATSUO , SHITOMI YASUJI , YOSHIDA SHIGERU , KAMI SHUJI , KIMURA HIDEKI
IPC分类号： E02F5/06 , E02D31/08
摘要： PROBLEM TO BE SOLVED: To allow a vibration shielding wall, comprising a single wall body, to demonstrate a sufficient vibration shielding effect while the vibration shielding wall is constructed at a large depth without requiring discharge of sediment, independent of a ground condition. SOLUTION: Columnar bodies 2 and 2' where a vibration shielding material is molded into a column are inserted, in parallel, in the wall body of a soil cement 3. An endless chain 17 comprising a cutting blade 18 is allowed to traverse underground while circulating around a cutter post 12, while a solidifying liquid is discharged from the lower end part of the cutter post 12 or near a ground surface to construct the wall body of the soil cement 3. Before the soil cement 3 is solidified, the columnar bodies 2 and 2' are inserted, in parallel, in the soil cement 3.

9. 发明专利

JP2001140251A COMPOSITE PILE AND EXECUTION METHOD THEREFOR 失效
公开(公告)号：JP2001140251A
公开(公告)日：2001-05-22
申请号：JP32241199
申请日：1999-11-12
申请人： TENOX KK
发明人： FUKUDA ATSUO
IPC分类号： E02D5/56 , E02D5/28 , E02D5/50
摘要： PROBLEM TO BE SOLVED: To provide a composite pile of a steel pipe pile and a soil cement column. SOLUTION: A plurality of stirring wings 2 are projected to the circumference of the lower end of a composite pile, a hollow steel pipe as a pile core having one or more discharge ports 4 is used as a channel, successively adding the hollow steel pipe while pouring grout to rotationally bury, and it is formed in a state of soil cement by solidifying the grout inside and outside of the hollow steel pipe.

10. 发明专利

JP2001026923A MULTISTEP EXPANSION AND SHRINKAGE HEAD FOR SOIL IMPROVEMENT MACHINE 失效
公开(公告)号：JP2001026923A
公开(公告)日：2001-01-30
申请号：JP20162499
申请日：1999-07-15
申请人： TENOX KK , TOKYU KENSETSU KK
发明人： KATO SHINYA , FUKUDA ATSUO , KAMI SHUJI , ITO HISAO , SUZUKI SHOZO
IPC分类号： E21B10/32 , E02D3/12
摘要： PROBLEM TO BE SOLVED: To securely expand and shrink a digging stirring blade provided at many steps or a blade for preventing turn together with the digging stirring blade by a simple expansion and shrinkage mechanism in a soil improvement machine so as to improve the mixing property of cement milk and soil greatly. SOLUTION: A digging rotary shaft 1 for a soil improvement machine has a double pipe structure consisting of an inner pipe 2 and an outer pipe 3, and the inner pipe 2 and the outer pipe 3 are arranged in such a way that they can rotate integrally and slide relatively in the axial direction. Digging stirring blades are arranged at many steps at an interval in the axial direction in the outer pipe 3, and a basic part of the digging stirring blade is supported on the outer pipe 3 in such a manner that the digging stirring blade can rotate freely in the direction in which its outside diameter is expanded and shrunk. The digging stirring blade 5-1 on a tip side of the outer pipe is expanded and shrunk due to the slide of an expansion and shrinkage guide member 8 provided in a tip part of the inner pipe 2, and the digging stirring blade 5-2 on a basic end side of the outer pipe is expanded and shrunk due to the slide of a guide mounting member 12 and an expansion and shrinkage guide member 11 which are provided in the inner pipe 2 and can move in the axial direction in a slit 13 of the outer pipe.

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