基坑

略论深基坑土体c、φ值的某些影响因素

Discussion on some effect factors of deep foundation pit 's C and φ values

超大超深基坑大开挖与PHC群桩保护综合技术

Comprehensive Construction Technology for the Ultra-large and Ultra-deep Foundation Pit Excavation and PHC Group Piles Protection

MW工法在基坑围护工程中的应用

The Application of the MW Construction Method in the Structure-defending of the Fundamental Pit

利用灰色模型GM（1,1）建立了基坑位移、沉降的预测预报系统，并利用Fortran语言编程实现；

Predictive system on foundation excavation displacement and subside is constructed with the fuzzy model GM ( 1,1 ) and implemented in FORTRAN language .

该方案经济安全，为将CFG桩应用到基坑支护领域提供了有益的参考。

At the same time , the practice also affords references beneficial to the application of CFG pile to pit supporting .

针对深基坑工程设计中所需的各种土参数，特别是抗剪强度参数C和Φ值进行了分析，并依据不同的土体性质、排水条件和开挖条件，提出不同试验方法。

The soil coefficients of deep foundation reinforcing engineering , especially soil shear strength index of C and φ value are analyzed , and the different testing methods are proposed according to various soil qualities , dewatering and excavating conditions .

基于BPN的基坑变形性状的应用研究

Research on Deformations in Excavations Based on BPN

然后，简单介绍了CSC工法并基于现场监测数据对该深基坑支护方案的合理性进行了分析；

Secondly , the feasibility of CSC method and retaining and protection structure is analyzed , according to monitoring data in situ .

上海地铁M8线延吉中路站基坑变形控制技术

Control Technology on Deformation of Deep Foundation Pit of Yanji Street Station of M8 Line of Shanghai Subway

以此为基础，再根据南京某基坑工程现场变形监测结果，由反分析获取SSC模型参数，并对模型参数进行验证。

Based on that , the parameters of SSC model were gained and validated by field monitoring deformations in some excavation engineering at Nanjing .

分析了基坑开挖后无支护计算及模拟情况，根据工程的实际情况，介绍了基坑开挖后组合支护工程的设计及计算，并利用有限元分析软件ANSYS进行了变形模拟，得出了一些结论。

It analyzes calculation of no-support after digging and its simulation , and introduces design and calculation of composite support according to practical condition of engineering , simulates its deformation applying for ANSYS and obtains some conclusion .

31m深的漩流池基坑与结构施工技术

The Construction Technique for the Foundation Pit & Structure of 31m Deep Swirling Pool

结合某基坑土钉支护实例，采用FLAC3D对土钉在开挖过程中的受力性能进行了模拟和分析。

In this paper , the authors analyze internal forces of a soil nail system during excavation using FLAC3D .

用正态概率分布函数的蒙特卡洛法，计算了土坡破坏概率Pr，给出了土坡安全可靠度设计指标pr，最后以一个实际的深基坑土坡工程为例。

Using the Monte Carlo method of normally distributed probability function , the failure probability ( Pf ) of earth slope is calculated and the reliability design criterion ( Pr ) of earth slope is given .

本文以建筑基坑为研究对象，从研究建立一个完整的监测系统出发，重点研究了利用监测数据选用灰色系统GM（1,1）模型建立预测预报系统的过程及动态设计及信息化技术施工的实现。

This paper concentrates on the architecture foundation excavation . From the establishment of a complete detective system , it puts emphasis on the study of constructing predictive system with gray system GM of detective data and implement of informative construction .

广州市RJ-1地铁上盖基坑及其周边环境监测研究

Monitoring of Foundation Pit of RJ-1 Subway Upper Cover and Surrounding Buildings in Guangzhou

基于北京地区深基坑开挖的实例，对多层土加两道钢支撑一道锚杆情况做了相应的FLAC数值模拟计算及分析。

Combined with the practical conditions in Beijing deep excavation , the instance of the multi-soil with two steel supports and one anchor was calculated and analyzed by FLAC in this article .

将MonteCarlo模拟法与有限元技术结合，对基坑变形的稳定性进行可靠度分析，并通过重构响应面来提高MonteCarlo模拟法的计算效率。

Combining Monte Carlo simulation with finite element method , this paper gives a way to analyze the probability of the deformation stability of foundation pit . Response surface method is employed to improve the calculation efficiency of direct Monte Carlo simulation technique .

深19.6m特大型基坑的围护设计与挖土施工

Perimeter Bracing And Excavation of Extra-Large Foundation Pit 19.6m In Depth

地铁车站深达24.6m的基坑降承压水施工

Water Pressure Reduction for 24 . 6m Deep Foundation Pit of a Subway Station

针对一般地下施工结构可靠度理论方法的不足，提出人工神经网络结合重要性抽样的MonteCarlo可靠度分析方法，并应用于一特大超深基坑的嵌岩支护结构。

Due to the shortcomings of general reliability analysis method of underground construction structures , a new method that combines artificial neural network and importance sampling Monte Carlo method is put forward for analyzing the reliability and applied to the rock-socketed support structure of supper-sized foundation pit .

本文用DruckerPrager模型和基于直接约束的接触算法模拟了超深嵌岩地下连续墙支护深基坑开挖全过程。

All thirteen excavation stages of a super deep foundation pit braced by rock-socketed diaphragm wall are simulated in this article using Drucker-Prager soil model and contact algorithm based on direct control method .

介绍冠宏花园PHC管桩加土锚在深基坑支护中的实施过程，并对基坑支护进行了水平位移及沉降与隆起监测。

The implementation process of PHC pipe piles with soil anchors in foundation pit supporting at Guang-Hong Garden is presented in this paper , and the monitoring of horizontal movement , settlement and raising of foundation pit supporting has been taken in progress .

通过在13m深的垂直基坑边坡加固工程中的应用，并经有限单元法分析，锚杆应力-应变量测和边坡位移监测，证实了这种新的加固方法的可靠性和经济性。

Through FEM analysis , measurement of stress-strain of the soil anchor , and monitoring the slope displacement , it has been verified that the new slope stabilization method is of high reliability and feasibility .

提出了一种深基坑开挖弹塑性有限元分析模型以及建立在该模型基础上的WHP反演算法和预报方法。

A kind of elastic plastic modulus of soils in the deep excavation pit is presented , and a WHP back analysis model and the displacement prediction method of retaining wall are given .

针对基坑开挖对临近地下管线的影响这一课题，利用Winkler弹性地基梁理论，建立了受基坑开挖影响的地下管线竖向位移与水平位移方程；探讨了地下管线位移按两端固定支座梁计算的合理性；

The research is conducted in this paper on the effect of deep excavation on the nearby underground pipeline , as follows : firstly , based on the elastic theory of Winkler , the equations of vertical and horizontal displacements of underground pipeline affected by deep excavation are founded ;

建立土钉支护的非线性有限元模型，土体本构采用多种本构模型，钉土之间采用Goodman单元模拟，能够模拟基坑的开挖与支护的施工过程。

A nonlinear finite element model ( FEM ) has been developed for the analysis of soil - nailed support system . Meanwhile several kinds of constitutive model were chosen for the nonlinearity and inelasticity of soil , and the Goodman element was adopted for the soil-nail interface .

第二、在垂直基坑边线分别为0.5m、2.0m、3.5m钻孔，然后埋入测斜管，利用测斜仪来测量基坑壁的侧向位移。

The second , at a distance of pit side line 0.5m , 2.5m , 3.5m , drill three inclinometer hole , cover up the inclinometer tube and use the borehole inclinometer to measure lateral displacement of the foundation pit .

拱形支护结构在深基坑开挖中的应用

The application of arched retaining structure in deep foundation pit excavation

以水泥搅拌桩作大型基坑支护结构的工程实践

The Practice on Large-scaled Foundation Pit Support with Cement Mixed Piles