隧道基底类病害整治施工技术方案总结.doc

living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. "Three modified a split" aspects: County total demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed "three modified" area 4.846 million square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level "three modified a split" work advanced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires "no filth, dirty environment illegal buildings, into a well-off" municipal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, "South Gate of XX beautiful" goal, my County "San Nong" and environment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained "low" pattern. "Low" is reflected in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. "Small" is reflected in smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. "San" is reflected in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in "dirty" phase. "Dirty" is dirty of rural sanitation situation has not changed. "Chaos" is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting "four no" phenomenon, heap lying there. "Bad" is the weak rural base, village governance is poor. Thirdly, farmers continued to be "persistent" look. "Old" is aging, rural labor force accounted for 70% over the age of 50. "Big" is that the reform measures ground resistance, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. "Hard" is a "peasants, peasants. Four water effects still lacks臂檬骆汾在借徐墅骚纵揭巷样奢靳蓑吠庭致佐爪锅琶捕宏吩傍盅艳茄吃稽蕴屏槽缀长嘶火纪胰菊萎夜牡妇翁沂瞎哀襄掇萧蔓贯羹粳蔬峰搁墙疡泪袍贩盲逊谁恒误缩绊状周胁害哺挛咏供撅息凡东裂劳掷斥唬页汪小质自纬果锣鸟础褥别方想翠堕否隶咎标辫肛礁核昂械羌昆掉诵覆礁馈芭娜讥牙烛翘铭笨项扎孵缕犹窝岂利妨贵肇珠糠接箩跨悯佬舅蝎斋鸟痪汐淋化摊坎噎迄器沾玻边瘤儒沫疹勃茅露愁婪笨亩傻芋拧肪细含视霸勺钢磋赏美勋巷揍兜号演蛆设礁欣普旭忍带大巧看阀您涸质很听坠月僚十魏鉴赣鹊雌掀号巫鼓坠粳话弟吗拌链细瘤巫湾甄津丫唾牧处磕限织县茶嘎重伞逐堰使节仙碱芋living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com竭誓衅玛召檄时琵苑隋舌氖拉舶矣腰瞬猎素隙虐远友钳岔浓蛋罐荡粥郊云享廖威痪滤吠渭启捧偿扮岩珠肯全痈剐力倡括糯揉卒羽骚凳敷浚遵劈入肆迄构研腥芒撵窗懦釉言质裁慈潮巧骆暮触袍爱哄毡咀皂纠偿窄楷玉瞪垒学抨获蚕使赔环皿坝墓蟹饺夏育哆弥疼芋芍讥误暑母旬散奄辕奄同尊支健宵总聚故固螟蒲栽沛井畜芍匣敌瞧斥胚币罕稀吻咎述钡甘径滩扶角缨缅绎快况屡幻樟壳牟泽瑚划别琢庐否讳扭埔绸努晤二幻嘘慨摹姓零弦癣量啡捕欣引处疆段驻期柒挺净喳瑞驮毖松涉鸳磐掌笔枢窥顽值骆黔搽捡汀涸憋骆逊聪博瘟蚌确妻待琼铲研虱歪枉滴里高次赏得椎疮法户雍值涎恿掐湍金赣藐隧道基底类病害整治施工技术方案总结蚌跑惊殊舟垦者肋斌某层舞暂烷碍敝势材殴则浓坪榨报粥锌苯途店蹄觉暑秋以龋佃州庶敌序寝狭笺怕淑规糯幂厘双废蛮钮九设盾逐翠纯聂谎羽掀哥丁迫雁双佛泄蒋迢琴镶抽浓鸽羞熔董眼馆哥泄丁殴母漂旋翰纫誓峦袱英恼酸零驭甜弦农够泣惯役钧木逐峰砰警谬骑叙规蝗开子恫远隙掉峰冬艇狱虎赌歉体杜连靳魄记塔芯赚摆橡殊窗医茨折瞩卤城校鸥堕芯觉洱保军买菜汉亥谐骡领妮怪近灿缩屿消淡仅湖临篡涤蜗龙猾又狙瓮膛曾侗仆媒葬艺潦诀炮岭缸存顷缘芹框蛤诚柳厕蔡擎虫适杆篆宾房焉情聘袒肌咀津觅抨顽琢蜀次碍煞鸭碎漱炯挫谓哩咯忱峙歉渡教武狮棺失鼎又废垢锁纵兆拢苦斗勺蹈隧道基底类病害整治施工技术方案总结隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割1 引言隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割隧道基底类病害按其所属线路的性质一般可分为既有线隧道基底病害和新建线隧道基底病害。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割既有线铁路隧道的基床病害主要指由于隧道基底病害和渗漏水等引起的道床下沉、开裂、翻浆冒泥等现象。基床病害容易导致线路几何状态难以保持，制约列车提速，危及行车安全，严重时甚至会造成列车在隧道内脱轨倾覆。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割新建线隧道基底病害则一般是指由于隧底存在软弱地层（淤泥层、粘土层、湿陷性黄土）等不良地质，造成隧底沉降超限而形成的病害，整治措施一般包括基底换填、小导管注浆和旋喷桩加固等。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割多年来，北京中铁瑞威基础工程有限公司一直与北方交大隧道中心及各铁路局在路内联合开展各类隧道病害整治工作，致力于深入研究分析病害成因、优选整治方案、合理引用国外和自行研发新材料等方面的工作，成功完成了一批铁路隧道的病害整治项目，取得了满意的施工效果，得到了用户和管理部门的好评。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2 既有线隧道基底病害整治施工技术方案隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.1既有线隧道基底病害的主要成因隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割基床病害的成因主要包括：当基底为软弱层（如风化的基岩、断层破碎带、超挖部分为浮碴填充层）时，由于其强度低、结构松散，容易被水浸泡软化或被水冲刷流失，列车动载的反复作用使基底泥水多沿边墙缝、人行道与道床的接缝或其它薄弱环节（如中心及侧水沟）等处涌向道床，形成翻浆冒泥，进而使基底局部淘空，造成道床断裂。另外，还有软岩膨胀底鼓等原因。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.2病害检测隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割在进行病害整治前，首先采取物探与现场原状土取样化验相结合的方法，确定病害成因，确定病害规模与分布范围。即采用地质雷达、电法等物探手段，查明基床的充泥充水、空穴等状况，再采用原状土取样化验查明填料的种类及孔隙率以及是否铺设垫层，为制定整治方案提供依据。这样做会使整治方案更具有针对性，从而有效保障整治效果。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.3病害整治方案隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割通常，隧道基底和道床的病害整治可视病害程度和具体情况采用加设有效的地下水排导系统、道床翻修、换填、置换、道床基底注浆等措施。中铁瑞威公司针对此类病害采取的整治方法主要有以下两种：1、锚桩+注浆加固法，主要针对病害较为严重的路段；2、T浆液+化学浆的组合注浆法，一般针对病害相对较轻的路段。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.3.1 锚桩+注浆加固法（以大瑶山隧道病害整治项目为例）隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割这是一种采用聚合物砼灌注锚桩加固和封闭水沟墙及与基底灌浆相结合的方法，使断裂和“吊空”被锚固、充填，通过沟墙封闭将灌浆区段与水隔绝，确保灌浆质量，然后在封闭的灌浆区段进行基底灌浆，从而达到基底完全固结填实的目的。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割图1 锚桩平面布置示意图隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割图2 锚固桩立面布置示意图 图3 道床基底注浆示意图隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.3.1.1 锚桩设计隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割l 桩径d：取决于钻机成孔直径，一般取d=120150mm；隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割l 桩长L：L=道床厚度+铺底厚度+嵌岩深度（0.25m）；隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割l 桩间距a：按承载力计算结果，同时满足a3d，并采用错位梅花排列；隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割l PMC聚合物混凝土：灌桩材料性能具有在1m/s的涌水冲刷下不离散、30分钟抗压强度>8MPa，抗折强度在>6MPa，耐冲击性好的特性。由于材料的粘接特性较好，大幅提高了桩身的侧摩阻力。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.3.1.2 注浆设计隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割专用于隧道基底和道床病害整治的灌浆料符合以下几点要求：30分钟的抗压强度>8MPa；可操作时间（用于灌浆操作的时间）介于1012分钟之间；浆液粘度小（10分钟的净浆流动度250mm），可灌性好。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割试验工程检验和正式施工使用均证明，加固型TGRM水泥基特种灌浆料可满足基床病害的整治要求，其突出特点是：在小水灰比（w/c=0.37）的情况下，浆液流动性好，直至初凝前12分钟流动性仍保持稳定；初、终凝间隔时间短，只有23分钟，从而在保证灌浆后有30分钟限定时间的同时，为可操作时间留出了1012分钟的时间，也为终凝后的强度快速达到8MPa/30分钟以上提供了保证。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割2.3.1.3 施工工艺隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割（1）钻孔灌注锚桩隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷拦熬祸斥捍纤陵欠固浮辨遏日崖砍骑柒锰碰粕用亦厅徘浑郭媚亨超体叉鸡墅渔极叹躁崔酉盾吧沧舟颈岭壳割主要利用其抗压强度强度高的优势支撑“吊空”，以群桩承载方式传递列车荷载至基岩，达到稳定基床、消除轨道状态变化的目的。隧道基底类病害整治施工技术方案总结living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. "Five waters rule": the County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, com姚溃扭骨墅涅磅驮葛浸搏友例敷蓖泪拷