A whole set of design scheme and construction program has been worked out and utilized in metro engineering in this thesis through the analysis and study on high pressure shot grouting method 本文通过对高压喷射注浆法进行分析研究，制定出一整套设计方案和施工方案，并将成果应用到地铁工程中。
Secondly , the theory is permate and extrude , and the globe spread theory , pill spread theory are analysised . the theory of the grouting belongs to filling , in order to reduce cement and money coal power is used 用注浆法处理暗穴属于充填注浆，为减少水泥用量，降低工程造价可在浆液的成份之中加入一定量的粉煤灰。
Collapse area tunnels in roadbase treated by the grouting is one task of china transplation darpartment science item " survey the tunnel in collapse area " . the paper mainly studied using the grouting treat tunnels in roadbase in collapse area 注浆法在湿陷性黄土路基暗穴处理中的应用研究是交通部西部交通科技项目“探测湿陷性黄土暗穴技术研究”的一个子题，本文重点开展注浆法在湿陷性黄土路基暗穴处理中的应用研究。
Abstract : according to the analysis the reason of plinth subsidence accident of an old ten thousand spindles main workshop of in a spinning mail of lanzhou , this paper introduces the engineering practice and reinforce for slumping loess foundation under the accomplished structures by pressure grout method 文摘:根据兰州市某纺织厂老一万锭主厂房柱基下沉事故的原因分析，介绍了用压力注浆法加固既有建筑物下湿陷性黄土地基的工程实践与处理效果。
First , the paper analyze the classify and characteristic of grouting technique , detailed research the definition , characteristic and application in foundation reinforce of technique of composite base in summarizing the development and application of grouting technique inside and outside 本文首先在总结注浆技术在国内外的发展及应用的基础上，分析了注浆方法的分类及特点，并对复合注浆法的定义、特点及其在地基加固中的应用进行了详细的研究。
There are many methods of foundation consolidation for civil engineering , such as soil exchange method , prepress method , dynamic consolidation method , vibrancy rushing method , soil and podsol dense pile method , sand pile , cement - coal - powder and gravel pile method , deep mixing method , high - pressure eject masonry , etc . the dynamic consolidation and deep mixing method ( dmm ) are very common in project construction 目前国内外地基处理的方法很多，主要的地基处理方法包括：换填法、预压法、强夯法、振冲法、土和灰土挤密桩法、砂桩法、水泥粉煤灰碎石桩法、深层搅拌法以及高压喷射注浆法等。其中强夯法和深层搅拌法是工程建设中较常用的加固方法。
Through a comparison between several treatment methods such as drainage consolidation , powder spraying , pressure mud pumping , gyratory spray pumping etc , the result shows that under suitable condition the application of gyratory spray pumping has some advantages such as short construction period , high ground base bearing force after treatment and less compressibility . it can guarantee structures to be built in due time and safety after completion . those results show that gyrayory spray pumping technology has good practicality inengineering 通过对排水固结法、粉喷法、压力注浆法、旋喷注浆法等几种应用处理方法的效果对比，表明旋喷注浆法处理地基在适宜的条件下应用，具有工期短、处理后地基承载力较高、压缩性较小的优点，能保证构造物按期施工及其建成后的安全使用，只有较高的实际应用价值。
Technique of composite grouting is a new type grouting technique which make still pressure technique and high pressure spin spray technique unite according to sequence in order to exert their advantage . it can fully exert each advantage and get over each disadvantage about still pressure technique and high pressure spin spray technique , thereby attain the maximal applicability stratum range and best reinforce effect , and assure succeed rate and security of reinforce 将复合注浆方法应用于在地基和桩基础加固中，能充分发挥静压注浆法和高压旋喷注浆法这两种注浆加固方法各自的优点，克服各自的缺点，从而达到最大的适用地层范围和最佳的加固效果，保证加固的成功率和安全性。
Fourth , the paper study the serum material and prescription of by chamber experiment , study the construct process and key technic parameter by locale simulation test , and study the dispose effect , applicability stratum range and operation mechanism in foundation reinforce by studying practicality project , the paper still study the test of reinforce effect about present building foundation and disfigurement stake of technique of composite grouting 第四，本文通过室内实验对复合注浆浆液材料和配方进行研究；通过现场模拟试验对复合注浆的施工工艺、关键技术参数进行研究；通过对实际工程应用的研究对复合注浆法在地基和基础加固中的加固处理效果、加固适用地层范围及加固作用机理进行分析研究。本文还对既有建筑物地基及缺陷桩基础的复合注浆加固效果检验进行了研究。
Jet grouting is a foundation treatment method that a high - velocity grout , which is forced under high pressure out of a nozzle , cuts into the soil to form a cylindrical soil - cement solidification , and with the result of that the bearing capacity of the foundation is enhanced and the settlement and the differential settlement are reduced . this process is widely used in constructional engineering , highway bridge , coal mine and railway bed 旋喷注浆法可在地层深处将水泥浆液等以高压旋转冲切土体,形成水泥土圆柱加固体,构成旋喷桩复合地基,以达到加固地基,提高承载力和减少建筑物的沉降和不均匀沉降的目的,在我国建筑工程、公路桥梁、煤矿和铁路路基等建设工程中应用极为广泛。
