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由北京长城新技术研究所发出的“碴土桩加固地基新技术”,是利用房碴土(系指土、碎砖瓦、砂、石、工业废料等到混合物)来加固地基.经处理后的复合地基允许承载力为原天然地基的5～9倍,一般可达300～500kN/m~2,既节省了钢材、水泥,又消化了建筑垃圾.它是地基处理和环保工程相结合的最佳方案, 主要特点是:(1)应用范围广,可处理杂填土、软弱土、液化土、湿陷性黄土及酸碱腐蚀土层.对一些特殊人防工事、硬夹层等地基也可特殊处理.(2)造价低,其造价为桩基的1/2～2/3,为大开挖深基或板基的1/3左右.(3)劳动强度低、工效高,与大挖大填相比,缩短一半工期,可在雨冬季施工.(4)振动,噪音和公害较小.
The “New Technology for Consolidation of Earthwork Piles” issued by the Beijing Great Wall New Technology Institute is to use the soil of the house (the soil, crushed bricks, sand, stone, industrial waste, etc.) to reinforce the foundation. The composite foundation allows the bearing capacity to be 5 to 9 times that of the original natural foundation, and generally it can reach 300 to 500 kN/m~2, which not only saves steel and cement, but also digests construction waste. It is the combination of foundation treatment and environmental protection engineering. The main features are: (1) It has a wide range of applications and can handle miscellaneous fill, soft soil, liquefied soil, collapsible loess, and acid-alkali corroded soil layers. It can also be used for some special civil defense fortifications, hard interlayers and other foundations. Processing. (2) The cost is low, and its cost is 1/2 to 2/3 of the pile foundation, which is about 1/3 of the deep excavation depth or base. (3) Low labor intensity, high work efficiency, and large digging. Compared with large filling, half of the construction period can be shortened, and it can be constructed in rain and winter. (4) Vibration, noise and pollution are small.