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A platform for research: civil engineering, architecture and urbanism
Device and method for directionally solidifying sandy soil by inducing calcium carbonate precipitation through microorganisms
The invention discloses a device and a method for directionally solidifying sandy soil by inducing calcium carbonate precipitation through microorganisms. The device comprises a drill rod; a first air pipe, a second air pipe, a grouting pipe and a fixed pipe are sequentially arranged in the drill rod from inside to outside; a plurality of second telescopic pipes are further arranged on the circumferential outer wall of the drill rod; a plurality of first slurry outlet holes are further formed in the outer walls of the second telescopic pipes; first telescopic pipes are further arranged in the second telescopic pipes; unlocking blocks are arranged at one ends of the first telescopic pipes; a movable plate is further arranged in the fixed pipe; the first air pipe is connected with the movable plate; a plurality of locking pieces are further arranged in the drill rod; and the locking pieces can fix a conical head to the circumferential outer wall of the drill rod. According to the device and the method, the microorganism grouting solidification range can be enlarged through the arranged second telescopic pipes, accurate directional solidification of any area of the soil can be achieved, the solidification efficiency of the soil is improved, after microorganism solidification of the soil is completed, the second telescopic pipes fall off from the drill rod, and the looseness influence on the solidified soil is avoided.
本发明公开了微生物诱导碳酸钙沉淀定向固化砂土的装置及方法，包括钻杆，所述钻杆内由内至外依次设有第一气管、第二气管、注浆管以及固定管，钻杆的圆周外壁上还设有若干第二伸缩管，第二伸缩管外壁上还设有若干第一出浆孔，第二伸缩管内还设有第一伸缩管，第一伸缩管一端设有解锁块，固定管内还设有移动板，第一气管与移动板连接；钻杆内还设有若干锁紧件，锁紧件能够将圆锥头固定在钻杆的圆周外壁上。本发明利用设置的第二伸缩管不仅能够扩大微生物注浆固化范围，而且能够实现对土壤任意区域的精准定向固化，提高了对土壤的固化效率，完成对土壤的微生物固化后，第二伸缩管从钻杆上脱落，避免对已固化的土壤造成松动影响。
Device and method for directionally solidifying sandy soil by inducing calcium carbonate precipitation through microorganisms
The invention discloses a device and a method for directionally solidifying sandy soil by inducing calcium carbonate precipitation through microorganisms. The device comprises a drill rod; a first air pipe, a second air pipe, a grouting pipe and a fixed pipe are sequentially arranged in the drill rod from inside to outside; a plurality of second telescopic pipes are further arranged on the circumferential outer wall of the drill rod; a plurality of first slurry outlet holes are further formed in the outer walls of the second telescopic pipes; first telescopic pipes are further arranged in the second telescopic pipes; unlocking blocks are arranged at one ends of the first telescopic pipes; a movable plate is further arranged in the fixed pipe; the first air pipe is connected with the movable plate; a plurality of locking pieces are further arranged in the drill rod; and the locking pieces can fix a conical head to the circumferential outer wall of the drill rod. According to the device and the method, the microorganism grouting solidification range can be enlarged through the arranged second telescopic pipes, accurate directional solidification of any area of the soil can be achieved, the solidification efficiency of the soil is improved, after microorganism solidification of the soil is completed, the second telescopic pipes fall off from the drill rod, and the looseness influence on the solidified soil is avoided.
本发明公开了微生物诱导碳酸钙沉淀定向固化砂土的装置及方法，包括钻杆，所述钻杆内由内至外依次设有第一气管、第二气管、注浆管以及固定管，钻杆的圆周外壁上还设有若干第二伸缩管，第二伸缩管外壁上还设有若干第一出浆孔，第二伸缩管内还设有第一伸缩管，第一伸缩管一端设有解锁块，固定管内还设有移动板，第一气管与移动板连接；钻杆内还设有若干锁紧件，锁紧件能够将圆锥头固定在钻杆的圆周外壁上。本发明利用设置的第二伸缩管不仅能够扩大微生物注浆固化范围，而且能够实现对土壤任意区域的精准定向固化，提高了对土壤的固化效率，完成对土壤的微生物固化后，第二伸缩管从钻杆上脱落，避免对已固化的土壤造成松动影响。
Device and method for directionally solidifying sandy soil by inducing calcium carbonate precipitation through microorganisms
微生物诱导碳酸钙沉淀定向固化砂土的装置及方法
GUO LIANG (author) / WANG BAOQUAN (author) / XIANG YING (author) / XU BIN (author) / WANG YINSHUAI (author) / LI TAO (author) / LEI QIFENG (author) / LU YI (author) / LIU YUXUAN (author) / PENG YIQI (author)
2021-06-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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