[1]郭院成,秦会来,王立明..桩锚与土钉联合支护结构中的土压力分配模式[J].郑州大学学报(工学版),2004,25(03):52-55.[doi:10.3969/j.issn.1671-6833.2004.03.013]
　GUO Yuancheng,Qin will come,Wang Liming.Earth pressure distribution pattern in pile anchor and soil nail joint support structure[J].Journal of Zhengzhou University (Engineering Science),2004,25(03):52-55.[doi:10.3969/j.issn.1671-6833.2004.03.013]
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桩锚与土钉联合支护结构中的土压力分配模式()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
25
期数:
2004年03期
页码:
52-55
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Earth pressure distribution pattern in pile anchor and soil nail joint support structure
作者:
郭院成; 秦会来; 王立明.
郑州大学土木工程学院,河南,郑州,450002, 同济大学地下建筑与工程系,上海,200092
Author(s):
GUO Yuancheng; Qin will come; Wang Liming
关键词:
岩土工程;  基坑支护;  联合支护结构;  土压力计算
Keywords:
DOI:
10.3969/j.issn.1671-6833.2004.03.013
文献标志码:
A
摘要:
桩锚与土钉联合支护结构中,土压力在桩锚和土钉之间的分配是联合支护结构设计的关键所在.土钉对土体的加强将使直接作用于桩锚结构上的土压力得到显著减小,从而降低桩锚结构中的锚杆应力水平,减短排桩插入土中深度.通常情况下桩锚与土钉联合支护结构的基坑边壁侧移很小,土钉长度范围内一般不会出现显著的破裂面,此时土钉支护部分可视为土压力向桩锚结构传递过程中的中间单元.据此可计算桩锚与土钉联合支护结构中土压力在二种支护结构间的分配及联合支护结构的协调变形问题.通过工程实例基坑边壁侧移的计算和监测结果对比,验证了土压力分配模式的工程适用性,对同类支护结构的设计计算具有一定的参考价值.
Abstract:
In the joint support structure of pile anchor and soil nail, the distribution of earth pressure between pile anchor and soil nail is the key to the design of joint support structure. The strengthening of soil nails will significantly reduce the soil pressure directly acting on the pile anchor structure, thereby reducing the stress level of the bolt in the pile anchor structure and shortening the depth of pile insertion into the soil. Under normal circumstances, the side wall of the foundation pit of the joint support structure of pile anchor and soil nail is very small, and there is generally no significant rupture surface within the length of soil nail, and the soil nail support part can be regarded as an intermediate unit in the process of earth pressure transmission to the pile anchor structure. Based on this, the distribution of earth pressure between the two supporting structures and the coordinated deformation of the joint support structure can be calculated. Through the calculation of the side wall of the foundation pit and the comparison of the monitoring results, the engineering applicability of the earth pressure distribution mode is verified, which has certain reference value for the design and calculation of similar supporting structures.

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更新日期/Last Update: 1900-01-01