Modified Winkler foundation model with horizontal force taken into account;

Based on test result,horizontal force four characteristics and the formula for calculating three parameters of horizontal force suitable for deep and medium deep vertical shaft were put forward.

Physical simulation test of damage character of surrounding rock under different levels of the horizontal stress

Effect of horizontal stress and rock crack density on roof safety thickness of underground area

In order to determine the effects of horizontal stress on floor heave of soft rock roadway in deep mines,the effects of different rock strength,lateral pressure coefficients and depths of notching in floor on deformation of roadway are numerically studied by means of FLAC3D software.

Analysis of the effects of temperature distribution on stress level in a rotating disk;

Calculation and experiment on consolidation coefficient for soft clay considering different stress levels;

Relationship between entrance pore distribution and stress level of natural sedimentary diatomaceous soil;

The hydraulic balance investigation on the air-conditioning piping system of the PuDong airport terminal building;

Hydraulic Balance and Gas Discharged of the Hot-water Heating Pipe Net System;

Impact of hydraulic balance methods on characteristics of motorized valves in air conditioning water system terminals;

udy on rational pressure level of 63+4 formation in upper Guantao Formation of the west seventh region in Gudong oilfield.;

This article researches the injection-production system in one segment of Huabei Oilfield,analyzes the injection-production system of whole segment and decides the reasonable injection-production system,from well pattern adaptation,ratio of injection-production and well numbers,pressure adaptation,reasonable pressure level.