A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for predicting safety of pile body of hammered pile body in granite area
The invention relates to a method for predicting the safety of a hammered pile body in a granite area, which can predict the safety of the pile body in the granite area and prevent the pile body from being damaged, and is characterized by comprising the following steps of: firstly, determining the weight and the maximum stroke of a diesel hammer, and detecting the diameter and the top surface burial depth of a boulder by a geological radar or cross-hole earthquake CT method; determining the radius of the precast pile, the axial compressive strength design value of pile body concrete, the compressive bearing capacity limit value of the pile body, the elastic modulus and Poisson's ratio of granite residual soil, the shear modulus of the granite residual soil and the instantaneous maximum impact force borne by the top surface of the precast pile; then determining the soil body side frictional resistance borne by a pile body, determining the soil body side frictional resistance borne by the pile body, the dynamic cohesive force of granite residual soil and the weight of the granite residual soil, finally determining the resistance of the soil body at the lower part of the boulder, and judging whether the pile body is damaged or not by comparing the instantaneous maximum impact force with the resistance. The purpose of preventing the pile body from being damaged in advance is achieved.
本发明涉及一种花岗岩地区锤击桩桩身安全性预测方法，能够预测出该类地区桩身的安全性，避免桩身产生破坏，其技术方案要点是首先：确定柴油锤的重量及最大冲程，通过地质雷达或跨孔地震CT的方法探测出孤石的直径以及顶面埋深，确定预制桩的半径以及桩身混凝土的轴心抗压强度设计值、桩身抗压承载力极限值、花岗岩残积土的弹性模量和泊松比、花岗岩残积土的剪切模量、预制桩顶面受到的瞬时最大冲击力，接着确定桩身受到的土体侧摩阻力、确定桩身受到的土体侧摩阻力、花岗岩残积土的动粘聚力、花岗岩残积土的重度，最后确定孤石下部土体的抵抗力，并通过对比瞬时最大冲击力与该抵抗力判断桩身是否会发生破坏，达到提前避免桩身产生破坏的目的。
Method for predicting safety of pile body of hammered pile body in granite area
The invention relates to a method for predicting the safety of a hammered pile body in a granite area, which can predict the safety of the pile body in the granite area and prevent the pile body from being damaged, and is characterized by comprising the following steps of: firstly, determining the weight and the maximum stroke of a diesel hammer, and detecting the diameter and the top surface burial depth of a boulder by a geological radar or cross-hole earthquake CT method; determining the radius of the precast pile, the axial compressive strength design value of pile body concrete, the compressive bearing capacity limit value of the pile body, the elastic modulus and Poisson's ratio of granite residual soil, the shear modulus of the granite residual soil and the instantaneous maximum impact force borne by the top surface of the precast pile; then determining the soil body side frictional resistance borne by a pile body, determining the soil body side frictional resistance borne by the pile body, the dynamic cohesive force of granite residual soil and the weight of the granite residual soil, finally determining the resistance of the soil body at the lower part of the boulder, and judging whether the pile body is damaged or not by comparing the instantaneous maximum impact force with the resistance. The purpose of preventing the pile body from being damaged in advance is achieved.
本发明涉及一种花岗岩地区锤击桩桩身安全性预测方法，能够预测出该类地区桩身的安全性，避免桩身产生破坏，其技术方案要点是首先：确定柴油锤的重量及最大冲程，通过地质雷达或跨孔地震CT的方法探测出孤石的直径以及顶面埋深，确定预制桩的半径以及桩身混凝土的轴心抗压强度设计值、桩身抗压承载力极限值、花岗岩残积土的弹性模量和泊松比、花岗岩残积土的剪切模量、预制桩顶面受到的瞬时最大冲击力，接着确定桩身受到的土体侧摩阻力、确定桩身受到的土体侧摩阻力、花岗岩残积土的动粘聚力、花岗岩残积土的重度，最后确定孤石下部土体的抵抗力，并通过对比瞬时最大冲击力与该抵抗力判断桩身是否会发生破坏，达到提前避免桩身产生破坏的目的。
Method for predicting safety of pile body of hammered pile body in granite area
一种花岗岩地区锤击桩桩身安全性预测方法
CHEN HUAYAN (author) / LUO CAISONG (author) / WANG FENGXUAN (author) / ZHOU YITAO (author) / ZHAN JINWU (author) / FU CHAOJIANG (author) / LIN XIN (author) / TIAN JINCHENG (author) / CHEN HAISHAN (author) / GUO HUILIANG (author)
2022-02-18
Patent
Electronic Resource
Chinese
IPC:
G06Q
Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke
,
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES
/
E02D
FOUNDATIONS
,
Gründungen
/
G01D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
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Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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