無底的深坑 的英文怎麼說
中文拼音 [wúdedeshēnkēng]
無底的深坑
英文
a bottomless pit gorge etc-
" prestress anchor ribbed beam support system " is a new practical support technology which came from soil nailing walls system and un - embedded rank of piles with anchors support system that has been used successfully for 4 years by the author and his company named qingdao deep foundation stabilization engineering co., ltd. it " s mechanism is similar to rank of piles with anchors support system that can not be inserted into the bottom of foundation trench, but it " s ribbed beams are used to replace rank of piles made before excavation so the work cycle can be shortened and the support system cost can be reduced ; meanwhile this system maintains the soil nailing wall " s convenience of digging and supporting
「預應力錨桿肋梁支護技術」是筆者及所在單位歷時四年在土釘墻和無嵌入多錨排樁兩種支護體系基礎上開發應用成功的一種新型實用性支護技術。其支護機理類似於未嵌入坑底的排樁多錨支護,只是由肋梁代替了開挖前施工的排樁從而提前工期並降低支護造價;同時繼承了土釘墻隨挖隨支護的機動靈活性。自1998年至今該技術已在青島、濟南、煙臺等十幾個深基坑和高邊坡工程中成功應用。Experiments about the influence of aeration on the dynamic pressure on the original riverbed show, aeration will obviously increase the fluctuating pressure on the original riverbed. 3. experiments about the influence of aeration on the dynamic pressure on the bottom of scour hole show, the influence of aeration on the dynamic pressure on the bottom of scour hole is ruleless
試驗研究了摻氣對沖坑底部脈動壓強的影響,結果表明:無論沖坑深度為多大,坑底脈動壓強均方根值沿程分佈與不摻氣時相比,沒有確定性的規律,射流摻氣后,沖坑底部的脈動壓強有時增加,有時反而減小。
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